Attachment 2 - Joyce Kilmer Specifications.pdf

Specification Index - 1

Joyce Kilmer Trailhead Restroom and Site Rehabilitation

Specification Index

Section Description Page No.

SECTION 01010 - SUMMARY OF WORK

SECTION 01300 - SUBMITTALS

SECTION 01710 - CLEAN UP AND DISPOSAL

SECTION 02070 - DEMOLITION

SECTION 02200 - EARTHWORK

SECTION 02601 - TESTING OF WATER AND SEWER LINES

SECTION 02665 - WATER PIPING AND APPURTENANCES

SECTION 02730 - SANITARY SEWER SYSTEM

SECTION 02821 – SEEDING, FERTILIZING, AND MULCHING

SECTION 03300 - CONCRETE

SECTION 07311 - ASPHALT SHINGLES

SECTION 07600 - FLASHING AND SHEET METAL

SECTION 07920 - JOINT SEALANTS

SECTION 08110 - METAL DOORS AND FRAMES

SECTION 08710 - FINISH HARDWARE

SECTION 09310 - CERAMIC TILE

SECTION 09900 - PAINTING

SECTION 10162 - TOILET/URINAL PARTITIONS

SECTION 20615 - PAVEMENT MARKINGS

SECTION 20616 - ASPHALT PAVEMENT CRACK SEALING AND FILLING

SECTION 20617 - FOG SEAL

01010 - 2

SECTION 01010 - SUMMARY OF WORK

PART 1 - GENERAL

1.01 LOCATION: This project is located at the Joyce Kilmer Memorial Forest Trail Head on the

Cheoah Ranger District Nantahala, NF approximately 13 miles northwest of Robbinsville, NC.

1.02 DESCRIPTION OF WORK: The principal features of the work to be performed on site under these specifications:

A. Overview: rehabilitate the existing toilet building and facilities including toilets, urinal, plumbing, painting, cleaning, crack repair, door replacements, partition replacements, sidewalk replacement, roof replacement, parking striping and ABA parking. This does not include all items.

B. Demolition:

1. Demolition and removal of existing interior water lines.

2. Demolition and removal from site Urinals and Toilets.

3. Demolition and removal from site toilet partitions and hardware.

4. Demolition and removal from site 3 doors.

5. Demolition and removal from site designated existing sidewalks around building and to parking lots.

6. Demolition and removal from site designated parking pavement.

7. Demolition and removal from site roofing structures.

B. Sanitary System:

1. Furnish and install the designated sewer and venting lines.

2. Furnish and install water closets and urinals with all associated fixtures.

C. Water System:

1. Furnish and install PVC piping and supports, shut offs valves, filters, and all other designated water systems items.

D. Concrete Flatwork and other associated items:

1. Furnish and install sidewalks, parking and curbing including earthwork to bring to grade and parking stripping.

E. Building:

1. Clean walls, timber, and flooring.

2. Re-tuck point stone, block, tiles, and CMUs as designated.

3. Re-roof with gutter and down spouts.

4. Replacement of doors.

5. Installing drainage systems.

6. Painting and staining of building structure.

F. Parking Area:

1. Thoroughly clean all pavement and curbing.

2. Seal and fill all cracks per FP-14 Section 414.

3. Re-stripe all parking spaces.

01010 - 3

1.03 PERFORMANCE SCHEDULE: All work shall be completed in accordance of the contract with in 90 calendar days of Notice to Proceed.

1.04 STANDARDS AND CODES:

A. All work shall comply with latest edition of applicable standards and codes including the following and as listed elsewhere in specifications and drawings.

ACI American Concrete Institute ASA American Standards Association ASTM American Society of Testing Materials ANSI C2, American National Standards Institute NECA Standards for Installation NEMA Standards for Materials and Products NFPA National Fire Protection Association NFPA Life Safety Code NFPA 101 OSHA Occupational Safety and Health Act UL United Laboratories IBC International Building Code IMC International Mechanical Code IPC International Plumbing Code OSHA Occupational Safety and Health Administration FP-14 Standard Specifications for Construction of Roads and Bridges on Federal Highway

Projects

1.05 UTILITIES: Government supplied water may be available for construction use.

1.06 CONTRACTOR OFFICE & TOILET: The contractor may have one self-contained trailer at the project site for an office and one self-contained “Port-a-Poti” for contractor’s use.

PART 2 - PRODUCTS (None)

PART 3 - EXECUTION

3.01 COORDINATION: The Contractor shall coordinate with Forest Service Personnel and/or other contractors on site.

3.02 HOURS OF WORK: Hours of work shall be between the hours of 7:00 am and 7:00 pm Monday through Saturday. Any deviation from these hours shall be approved by the COR in advance.

The Contractor shall keep the COR informed daily of the intent of scheduling work for the purposes of coordinating with the inspectors and for site access.

3.03 MANUFACTURER’S INSTRUCTION: Contractor shall follow with strict compliance to the manufacturer’s instructions for installation for all items.

3.04 CLEANLINESS

A. All work shall be conducted in a neat, clean, professional manner.

B. During and after completion of Construction:

1. All debris and waste including but not limited to concrete, plastic, pipe, wood, cartons, rubbish, stumps, limbs and surplus materials shall be cleaned up by the end of the day as work progresses and removed from the owner’s property except where approved temporary

01010 - 4 storage areas are for short duration.

2. Tarps or other devises shall be utilized to protect any finishes, equipment, structures or other on-site items.

3. All waste and excess materials shall become the property of the Contractor and shall be removed from the site unless noted otherwise.

3.05 WORKMAN LIKE MANNER: COR shall be the sole judge of workmen like manner, including proper construction techniques. As a basis for the judgment, the COR will use standard construction practices.

3.06 MATERIALS

A. All materials and equipment furnished for installation on this project shall be new and in strict accordance with Contract Documents unless noted. All packaged materials shall be delivered in their original containers which shall show the manufacturer’s name and the identifying designation as to size, quality, etc. Materials or equipment judged as “damaged” by the COR shall be removed from the site.

B. Storage: The Contractor shall be responsible for protecting all equipment and supplies intended for use in the project.

3.07 Protections:

A. Provide temporary barricades and other forms of protection as required to protect public from injury due to construction work. Barricades shall be installed prior to construction in effected areas. Four (4) foot high orange barricade fencing shall be installed around holes, rough ground or other hazards. Locations of barricades shall be approved by the COR.

B. Arrange construction sequences to provide the shortest practical time that the trenches and holes shall be open to avoid hazard to the public.

C. Remove protections at completion of work.

D. Travel routes and detoured access routes for foot or vehicles shall be maintained. Locations shall be approved by the COR.

3.08 UTILITIES

A. Contractor shall be responsible for locating all utilities within the work areas.

END OF SECTION

01300 - 5

SECTION 01300 - SUBMITTALS

PART 1 - GENERAL

1.01 REQUIREMENTS

A. It will be the Contractor’s responsibility to submit all items with such promptness as to cause no delay in the work. Approvals must be obtained before starting work which involves the item.

Contractor shall allow a minimum of 10 calendar days for processing of submittals by the Government.

B. The following submittal are required following award of contract for review and/or approval pursuant to contract provisions.

Copies Item Description Required References

1. Cost breakdown schedule listing 1 FAR 52.232-5 main types of work and totaling amount of contract.

2. Schedule 1

3. Designated Authorities and 1 FAR 52.236-6 Responsibilities of key personnel

1.02 MANUFACTURER’S LITERATURE AND SHOP DRAWINGS

A. Submit 1 digital PDF copy to the COR for approval on the items required herein. Literature which is not marked or otherwise designated to show the exact model, size, etc., which the Contractor proposed to use, will be returned by the COR “without action.” Circle or check items on submittals. Highlighter pens may print black or not at all when copied.

B. Information must be adequate to determine compliance with specifications.

C. Submit (3) copies of materials that cannot reasonably be scanned or provided digitally. One (1) copy of all submittals will be returned to the Contractor.

D. Submittals which are received from sources other than through Contractor’s office will be returned by the COR “without action”.

E. Submit all submittal items required for each category of work concurrently using Forest Service provided submittal cover sheet template.

PART 2 – PRODUCTS (none)

PART 3 – EXECUTION (none)

01710 - 6

SECTION 01710 - CLEAN UP AND DISPOSAL

1.01 CLEAN UP

A. The contractor shall keep the work site free from accumulation of waste materials and rubbish resulting from the work.

B. Before final acceptance of the project by the Government, the contractor shall remove from

Government land all waste materials and rubbish, resulting from this work.

1.02 DISPOSAL

A. Excavated material:

1. Excavated material that is excess to needs shall become property of the contractor and removed from site.

B. Trash and Garbage:

1. Haul to State-approved sanitary landfill.

C. Unusable Excavated Material:

1. Unusable Excavated Material (such as muck and roots) shall become the property of the contractor and removed from site.

D. Washing waste material down sewers or into waterways shall not be permitted.

PART 2 – PRODUCTS (none)

PART 3 – EXECUTION (none)

02070 - 7

SECTION 02070 - DEMOLITION

1.01 DESCRIPTION OF WORK

A. Extent of demolition work is indicated on drawings in work areas shown and notes. Demolition requires the removal and subsequent off-site disposal of concrete, plumbing materials, doors and hardware, roofing systems and other miscellaneous materials. Demolition is a part of other work.

1.02 JOB CONDITIONS

A. Condition of Structures: The Government assumes no responsibility for actual condition of items or structures to be demolished.

B. Protections: Reference Section 01010 and FAR 52.236-9.

C. Damages: Promptly repair damages caused to adjacent facilities by demolition work at no cost to Government.

D. Traffic: Conduct demolition operations and debris removal in a manner to ensure minimum interference with roads, walks, and other adjacent facilities. Do not block or otherwise obstruct streets, walks, or other occupied or used facilities without permission of the

COR.

E. Environmental Controls:

1. Comply with governing regulations pertaining to environmental protection and OSHA.

PART 2 - PRODUCTS (None)

3.01 INSPECTION: Prior to the commencement of demolition work, inspect areas in which work is to be performed.

3.02 DEMOLITION:

A. Perform demolition work in a systematic manner. Use such methods as required to complete work indicated on Drawings in accordance with demolition schedule and governing regulations.

B. Verify extent of site demolition with COR.

3.03 CLEAN-UP AND REPAIR

A. Upon completion of demolition work, remove tools, equipment and demolished materials from site.

B. Repair demolition performed in excess of that required. Repairs shall be started within 24 hours and completed as soon as practicable unless approved by the COR.

B. Repair adjacent construction or surfaces soiled or damaged by selective demolition work.

3.04 DISPOSAL OF DEMOLISHED MATERIALS

02070 - 8

A. Remove debris, rubbish and other materials resulting from demolition operations from building site. Transport and legally dispose of materials off site.

1. If hazardous materials are encountered during demolition operations, comply with applicable regulations, laws, and ordinances concerning removal, handling and protection against exposure or environmental pollution.

02200 - 9

SECTION 02200 - EARTHWORK

A. This work includes all shaping, excavating, embankment, trenching, bedding, backfilling, hauling, compacting of soil, and conserving of top soil to bring roads, walkways, and pipes to subgrade and finish grade.

1.02 SUBMITTALS: Submit source and soil type of bedding materials as listed in section 2.02 below and drawings with statement of certification from testing facility meeting specifications requirements.

1.03 Quality Assurances:

A. Compaction testing shall be supplied by the Contractor. The testing shall be done by a Professional Engineer registered in the State of North Carolina or under the engineer’s immediate direction.

B. All references to percent of maximum density will be as determined by ASTM D698-91, Method C.

C. Density testing accomplished by Professional Engineer:

1. Trenches shall be tested each 12-inch layer and each 100 LF of trench length.

2. Road sub-base and base shall be tested for each 500 LF section of roadway, parking area and sidewalks. Each area is treated separately.

3. Test results shall be furnished to COR with-in 3 calendar days of performing the test. Tests shall declare passing or failing of the tests results. Failing areas shall be reworked and retested.

D. Nothing in these specifications shall relieve the Contractor for repairing settlement areas.

PART 2 - PRODUCTS

2.01 GENERAL: All fill material shall be approved before use and be free of cinders, ashes, ice, frozen soil, large hard clods, organic debris, demolition items or other deleterious items.

Excavated material may be used as approved by the COR.

2.02 EXCAVATION: All material is unclassified.

2.03 Materials used in backfill and base courses (other than suitable excavated material) are defined as follows:

A. Bedding (BD): Materials shall be predominantly sand and gravel, having a plasticity index less than 6. Bedding may be omitted if, in the opinion of the COR, the excavated trench bottom will adequately support or not damage the utility line.

BD: Gradation as follows:

Sieve Size Percent Passing No. 4 100 No. 8 55 - 85 No.40 15 - 30

02200 - 10

B. Select Backfill (SB): Materials shall be predominantly sand and gravel, having a plasticity index less than 6.

SB: Gradation as follows:

3/4 inch 100 3/8 inch 55 - 85 No. 40 10 - 25

C. Backfill (BF): Materials shall be predominantly sand and gravel, and graded as follows:

BF: Gradation as follows:

1-1/2 inch 100 1/2 inch 45 - 75 No. 40 10 – 25

D. Aggregate (ABC): Materials shall be predominantly sand and gravel, and graded as follows meeting North Carolina DOT specifications for Aggregate Base Coarse (ABC) aggregate:

ABC: Gradation as follows:

1-1/2 inch 100 1 inch 75 - 97 1/2 inch 55 - 85 No. 4 35 – 55 No. 10 25 - 45 No. 40 14 - 30 No. 200 4 – 12

2.04 Contractor shall supply backfill materials as required.

3.01 EXCAVATION GENERAL

A. Salvage topsoil within disturbed area and replace after backfilling and excavation has been conducted and in designated areas.

B. HANDLING AND STORAGE:

1. Aggregate shall be handled to minimize segregation.

2. Stored aggregate shall not be contaminated.

3. Aggregate shall be placed with moisture content at optimum content for compaction.

C. GRADING: Grade all areas, including adjacent transition areas, with uniform levels or slopes between finish elevation. Shape surface of areas to within 0.10-foot elevation and compact as specified.

3.02 Utility Trenching:

02200 - 11

A. Excavate the trench to a level 6 inches below the grade of the slope for the utility line to be installed. Trench width as shown on the drawings.

1. Water lines shall run on a grade such that no air-pockets will form. If this is not possible due to bedrock, bring to the attention of the COR immediately. Minimum cover over pipe shall be 30 inches.

B. Unstable bottom: Secure approval of depth of over-excavation and stabilization method. For wet sub-grade, dispose of removed fluidized materials as approved. Use approved fill material to build a suitable foundation for the subgrade materials.

C. Rocky Trench Bottom: Where ledge rock, hard pan, boulders, or sharp-edged materials are encountered, over-excavate a minimum depth of 6 inches below the bottom of the utility exterior pipe-wall to permit adequate bedding preparation. The installed utility shall have at least 6 inches of clearing from any rock protrusion.

3.03 BACKFILLING UTILITIES TRENCH

A. Compaction:

1. All parking lots, roads, and walkway locations shall be compacted each layer to 95% of maximum dry density as determined by AASHTO T 99-Method C or D and tested by the Professional Engineer.

2. All other areas shall be compacted by making 3 passes with a hand tamper generating a 5000 lb. blow over the entire effected area unless noted otherwise in the drawings.

3. Do not place fill materials on surfaces that are muddy, frozen, or contain ice or frost.

B. Bedding:

1. Shape the bedding material in the trench bottom to ensure uniform contact over the full length of installed pipeline and remove any sharp-edged materials that might damage the line. No sharp-edged materials or stones larger than 1-1/2 inches shall be within 6 inches of the outside edges of the pipe. Compaction shall be maintained beneath the line.

2. Place pipe, then fill around the utility to just half depth, and compact in a manner to ensure against lateral or vertical displacement. Place the Bedding and Backfill to 12 inches above the pipe line by hand placement in not more than 6-inch layers.

3. Compaction by wheel rolling with construction equipment shall not be permitted.

4. Remainder of backfill shall be in 12-inch lifts to surface.

C. Backfilling may occur prior to utility testing. Contractor shall be responsible for all repairs of damaged or leaking pipes at no cost to the Government.

D. All other utilities encounter during construction including power, gas and communication lines shall be bedded the same as the water and sewer line requirements.

3.04 FINISH WORK

A. Drainage Ditches: Restore drainage ditches to appropriate line and grade, using approved surface erosion prevention techniques.

3.05 ROAD WORK

A. Road work and Sidewalk Sub-Base:

02200 - 12

1. Sub-Base shall be scarified to depth of 6 inches then shape to template as shown in the drawings.

2. Sub-Base compact to requirement listed above in section 3.03 A.

3. Sub-Base shall have no locations where ponding may occur

4. COR shall approve sub-base prior to base coarse installation.

02601 - 13

SECTION 02601 - TESTING OF WATER AND SEWER LINES

PART 1: GENERAL

1.01 DESCRIPTION

A. The work of this section consists of leak testing gravity sewer lines and water lines. Rejected work shall be retested.

B. Testing Methods: Gravity sewer lines - water level drop test; water lines - high pressure air test.

1.02 PROJECT CONDITIONS

A. Testing shall not be performed until each system has been flushed or thoroughly cleaned in accordance with procedures in the sections that describe water and sewer line installation.

B. Test potable water lines before disinfection.

PART 2: PRODUCTS None.

PART 3: EXECUTION

3.01 GENERAL

A. Perform testing in the Contracting Officer’s Presence. Notify Contracting Officer at least 48 hours prior to testing.

B. Prepare each section for testing, using adequate bracing, protect system equipment susceptible to damage by test pressures; make provision for installation of Government pressure gauge in parallel with Contractor’s gauge, if so requested and maintain service where required.

3.02 GRAVITY SEWER SYSTEMS

A. Water Test: Gravity sewer test shall consist of plugging the end of the sewer at the point of connection with the main sewer line OR at entrance to septic tank; filling the sewer with water;

testing with no less than a 10-foot head of water and maintaining such pressure for 15 minutes or 10 PSI of air and maintain such for 15 minutes. Loss of water or air constitutes a leak. Stand pipe shall be the same size or smaller of the pipe being tested.

B. Small sections and tie ins to manholes, the COR may wave the testing requirement if the COR feels assured that no leaks are present on those limited section areas.

3.03 WATER LINES

A. Fill line with air. Raise the internal pressure to 150 psi. Maintain the test pressure for 4 hours.

B. Do not use paints, asphalt’s, tars, or other types of pipe compounds to eliminate leaks.

C. Replace leaking fittings, nipples, or lengths of pipe.

3.04 FINAL PIPE CLEANING: Before testing, clean all lines to be tested by high pressure water jet or mechanical means. Remove and dispose of fluidized materials as approved by COR.

02665 - 14

SECTION 02665 - WATER PIPING AND APPURTENANCES

PART 1: GENERAL

1.01 DESCRIPTION: The work of this section consists of furnishing and installing water system piping and appurtenances.

1.02 PRODUCT HANDLING: Handle pipe carefully to ensure delivery at the project site in sound, undamaged condition. Contracting Officer will reject damaged pipe on site. Contractor shall replace damaged pipe at no additional expense to the Government.

1.03 SUBMITTALS: Submit manufacturer’s product information, installation instructions, and recommendations for all pipe and appurtenances.

1.04 QUALITY ASSURANCE:

A. Installers Qualifications: Firm with at least 3 years of successful installation experience on projects with potable water systems work similar to that required for project.

B. Codes and standards:

1. Comply with applicable portions of International Plumbing Code pertaining to selection and installation of potable water system material and products.

2. Comply with local codes which may apply.

3. If a discrepancy between codes is found, bring to the attention of the COR immediately.

C. Piping systems shall be installed per manufacturer’s instructions.

PART 2: PRODUCTS

2.01 PIPE AND PIPE FITTINGS

A. General: Provide piping materials and factory fabricated piping products of sizes, types, pressure ratings, and capacities as indicated on drawings. Provide sizes and types matching piping and equipment conditions; provide fittings of materials which match existing pipe materials.

B. Pipe

1. Interior building water lines shall be Schedule 40 PVC, sized as shown on plans.

C. FITTINGS: Size, grade, and joint type, to match pipe, and as recommended by the pipe manufacturer.

D. COUPLINGS FOR PLAIN ENDS AND DISSIMILAR PIPES: Sleeve and transition type couplings shall be factory manufactured to ensure tight fit and smooth flow transition at the joint.

E. PIPE HANGERS AND SUPPORTS:

1. Pipe supports shall be 16 ga electrogalvanized steel pipe supports and clamps - Unistrut Pipe

Clamps for OD Tubing, EG, with corresponding 1-1/4” steel Unistrut channel – or approved equal.

2. Affix pipe support channel to CMU wall with 2” min length concrete screws, per manufacturer’s instructions.

F. Joints

02665 - 15

1. Couplings for plain ends and dissimilar materials shall be as recommended by the

2. PVC shall be as recommended by the manufacturer.

3.01 GENERAL: Construct the water system to the lines and grades shown or established in the field.

02730 - 16

SECTION 02730 - SANITARY SEWER SYSTEM

PART 1: GENERAL

1.01 DESCRIPTION OF WORK:

A. Extent of sanitary sewage systems work is indicated on drawings and schedules, and by requirements of this section.

1.02 QUALITY ASSURANCE:

A. Installers Qualifications:

1. Firm with at least 3 years of successful installation experience on projects with sanitary sewage work similar to that required for project.

B. Codes and standards:

1. Plumbing Code Compliance:

a. Comply with applicable portions of International Plumbing Code pertaining to selection and installation of sanitary sewage system material and products.

b. Comply with local codes which may apply.

c. If a discrepancy between codes is found, bring to the attention of the engineer immediately.

2. Shall be installed per manufacturer’s instructions.

PART 2: PRODUCTS

2.01 PIPES AND PIPE FITTINGS:

A. General:

1. Provide pipes as shown on drawings.

2. Provide pipe fittings and accessories of same material and weight/class as pipes, with joining methods as indicated.

3. Provide fixtures as shown in the drawings.

B. Pipe:

1. ASTM D3034, polyvinyl chloride (PVC). Schedule 40.

C. PIPE HANGERS AND SUPPORTS: See Section 02665 2.01 (E)

D. Joint: Manufacturer's standard.

E. COUPLINGS FOR DISSIMILAR PIPES: Transition type couplings shall be factory manufactured to ensure tight fit and smooth flow transition at the joint. Poured concrete collar and similar coupling methods will not be accepted.

02730 - 17

3.01 INSTALLATION OF PIPE, FIXTURES, AND FITTINGS:

1. Install piping in accordance with governing authorities having jurisdiction, except where more stringent requirements are indicated

2. Lay piping beginning at low point of system, true to grades and alignment indicated, with unbroken continuity of invert.

4. Place bell ends or groove ends of piping facing upstream.

5. Install gaskets in accordance with manufacturer’s recommendations for use of lubricants, cements and other special installation requirements.

6. Contractor shall verify invert grades and set.

7. Install fixtures per manufacture’s recommendations.

B. Plastic Pipe:

1. Install in accordance with manufacturer’s installation recommendations, and in accordance with ASTM D2321.

C. Cleaning Piping:

1. Clear interior of piping of dirt and other superfluous materials as work progresses.

2. Maintain swab or drag in line and pull past each joint as it is completed.

3. Place plugs in ends of uncompleted conduit at end of day or whenever work stops.

D. Joint Adapters: Make joints between different types of pipe with standard manufactured adapters and fittings intended for that purpose.

02821 - 18

SECTION 02821 – SEEDING, FERTILIZING, AND MULCHING

PART 1 - GENERAL

1.01 DESCRIPTION: Prepare seed beds, and furnish and place required seed, fertilizer, mulch, net, and blanket material.

PART 2 - PRODUCTS

2.01 FERTILIZERS: Shall be 18-46-0 with 50% slow release.

2.02 SEED:

A. Seed shall be certified weed-free, pure live seed, and the certificate stating this shall be given to the COR. Species of seed for the mixes shall be thoroughly and uniformly mechanically machine mixed. A label shall be attached to each bag of seed stating the name and address of shipper, the weight, kind, variety, purity, germination, hard seed, source of origin, date of last tests, lot #, prohibited noxious weeds, restricted noxious weeds, inert material, other crop, other weeds seeds and whether the seeds are treated and with what substance (if applicable). The Government may test the seed prior to application, the Contractor shall allow 2-3 weeks for the testing. A certified/registered seed technologist will do the testing.

B. Permanent Seeding – Spring (2/1 to 5/1):

Fungus Free Tall Fescue (Kentucky 31 is not acceptable): 26% Virginia Wild Rye: 13% Creeping Red Fescue: 8% Red Clover: 15% Rye (cereal small grain): 38%

C. Permanent Seeding – Summer (5/1 to 8/1):

Creeping Red Fescue: 28% Little Bluestem: 28% Indian Grass: 28% Partridge Pea: 16%

D. Temporary Seeding:

Foxtail (German) Millet: 86% Partridge Pea: 14%

2.03 Mulch used on the project shall be certified noxious weed free straw.

3.01 FERTILIZERS: Fertilizers shall be spread on the ground surface at the following rates: 600 lb/acre.

3.02 SEED: Seed shall be spread on the ground surface in the following amounts: 90 lbs/acre

3.03 Seeding Seasons:

A. Observe the normal seasonal dates for seeding as shown above in section 2.02.

02821 - 19

B. Do not apply seeding materials during windy weather or when the ground is excessively wet or frozen.

3.04 Soil Preparation:

A. Finish the areas to be seeded, as required by other applicable sections, to the lines and grades shown on the drawings. Restore areas that are damaged by erosion or other causes. Ensure that the surface soil is in a roughened condition favorable for germination and growth. When required, apply limestone uniformly at the rate given either before or after soil preparation.

3.04 Moisten seeding areas before seeding and maintain the moisture until 3 days after germination.

3.05 Application Methods for Seed, Fertilizer, & Limestone.

A. To control erosion, apply seed to disturbed soil and slopes within 30 days of disturbance. Apply fertilizer with the seed when specified.

1. The following method may be used to place material:

a. Hydraulic Method. Mix the seed or seed and fertilizer with water in the amounts and mixtures specified to produce a slurry, then apply it under pressure at the rates specified.

When wood cellulose or grass straw mulch materials are to be incorporated as an integral part of the slurry mix, add them after all other materials have been thoroughly mixed in the tank. Use an inoculum for hydraulic seeding that is four times what is recommended for dry seeding.

3.06 Application of Mulch. The following methods may be used to apply mulch:

A. Hydraulic Method. Hydraulic equipment that uses water as the carrying agent may be used to apply wood cellulose or grass straw fiber mulch, tackifier, and fertilizer in a single operation.

Continuously agitate the materials to keep them in uniform suspension throughout the distribution cycle. Ensure that the discharge line evenly distributes the solution to the seedbed. Do not mulch where there is free surface water. Start application to areas that have been disturbed from the upper slopes and work downward. Apply at the specified rates.

B. Mulch by hand areas inaccessible to mulching equipment

C. Rates for straw mulch: 3000 pounds per acre.

3.07 Installation of Netting & Erosion Control Blankets. Install nettings and erosion control blankets in accordance with the manufacturer's recommendations.

3.08 Care During Construction. Protect and care for seeded areas until the work is finally accepted. Repair all damage to seeded areas caused by construction, without additional compensation.

3.09 Areas to seed and mulch: Minimum shall be all disturbed areas, including disposal pits.

03300- 20

SECTION 03300 - CONCRETE

PART 1 - GENERAL

1.01 SUPPLIERS: Concrete shall be supplied by a ready-mix firm regularly engaged in the business.

Admixtures and concrete fibers shall be supplied by the same manufacturer or fibers and admixtures shall be proven to be compatible.

1.02 QUALITY ASSURANCE

A. Comply with the provisions of following codes, specifications and standards, except where more stringent requirements are shown or specified:

ACI 301 “Specifications for Structural Concrete” ACI 302 “Guide for Concrete Floor and Slab Construction” ACI 304 “Guide for Measuring, Mixing, Transporting, and Placing Concrete” ACI 305 “Hot Weather Concreting” ACI 306 “Cold Weather Concreting” ACI 308 “Standard Practice for Curing Concrete” ACI 318 “Building Code Requirements for Reinforced Concrete.”

PCA “Design and Control of Concrete Mixtures” ASTM C94 “Standard Specification for Ready-Mixed Concrete” ASTM C 1116 “Standard Specification for Fiber-Reinforced Concrete and Shotcrete”

Concrete Reinforcing Steel Institute “Manual of Standard Practice”

B. CONCRETE TESTING SERVICE - Engage a laboratory acceptable to COR to perform material evaluation tests.

C. Materials and installed work are subject to quality assurance testing and re-testing at any time during progress of work. Tests including retesting of rejected materials and installed work, shall be done at Contractor's expense.

1.03 SUBMITTALS:

A. Submittals shall comply with section 01300 “Submittals”

B. Submit data for proprietary materials and items, including reinforcement and forming accessories, design mix, admixtures, concrete fibers, patching compounds, water stops, joint systems, sealants, curing compounds, dry-shake finish materials, and others as requested by COR.

C. Shop Drawings - Reinforcement:

1. Submit shop drawings for fabrication, bending, and placement of concrete reinforcement.

2. Comply with ACI 315 "Details and Detailing of Concrete Reinforcement" showing bar schedules, stirrup spacing, diagrams of bent bars, and arrangement of concrete reinforcement.

3. Include special reinforcement required and openings through concrete structures.

1.04 TESTS

A. All concrete testing described below shall be performed by the Contractor at his expense.

Testing shall be done by a laboratory regularly engaged in testing of concrete. Results shall be reported to the COR in writing over the signature and stamp of a Registered Professional Engineer. COR shall be present during placing and testing in the field.

03300- 21

B. CYLINDERS: 6-inch diameter cylinders will be made and cured in accordance with ASTM C31.

C. COMPRESSIVE STRENGTH: ASTM C39 with the following additions:

1. Any strength test below design value may be rejected by the COR.

2. A test is defined as the average of two cylinder breaks, except if any cylinder shows definite evidence (other than low strength) of improper sampling, molding, handling, curing, or testing, it shall be discarded, and the strength of the remaining cylinder shall be considered the test result.

D. Test Frequency:

1. 6" Cylinder - 3 per truck batch, 1 will be broke at 7 days, 2 at 28 days

2. Slump - 1 per truck batch or as directed by the COR

3. Air Test - 1 per truck batch

E. Trucks that arrive on separate days are classified as separate placements unless the placements are continuous for the 24-hour period.

1.05 BATCH CERTIFICATION

A. A concrete batch certificate containing all items shown on the sample in this section shall be completed and furnished to the COR with each load.

2.01 FORM MATERIALS

A. FORMS

1. Plywood, lumber, or metal free of defects which could cause blemishes. Other material shall be used on approval of COR.

2. Use boards only when the finished work is not exposed.

B. FORM COATING - provide commercial formulation form-coating compounds that will not bond with, stain nor adversely affect concrete surfaces, and will not impact subsequent treatment of concrete surfaces.

C. Ties:

1. Standard metal form clamp assemblies or metal rods or bars of a type which act as spreaders and break back at least 1 inch from concrete surfaces.

2. Under special or unusual conditions, where rod or bar ties are not adaptable or proper sizes are not available, wire ties may be used if approved in advance by the COR.

2.02 REINFORCING

A. REINFORCING BARS - ASTM A615, grade 40, size as shown on the drawings.

B. DOWEL BARS – shall be smooth round bars meeting the specifications for reinforcing bars.

C. All reinforcement shall be new, free from dirt, oil, paint, grease, loose mill scale, and loose or thick rust when placed.

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D. Store on blocks or horses off the ground in a manner to prevent bending, rusting, and accumulations of dirt or soil.

E. SUPPORTS FOR REINFORCEMENT

1. Provide adequate supports for reinforcement as required by CRSI “Manual of Standard Practice”

2. Supports shall be positioned to ensure all reinforcement will be positioned correctly in the concrete. In no case should the distance between supports exceed 4’ in any direction, or as detailed on the drawings.

3. Other means of support shall be approved by the COR.

F Welded wire mesh shall not be used.

2.03 CONCRETE MATERIAL

A. CEMENT - ASTM C150 Type I or II, use one brand of cement throughout the project.

B. AGGREGATE

1. ASTM C33 with designated size of coarse aggregate No. 67 (3/4 inch to No. 4).

2. Local aggregates not complying with ASTM C33 but which have shown by special test to produce concrete of adequate strength and durability may be used when approved by COR.

C. SYNTHETIC FIBERS: 3/4” (20 mm) multifilament polypropylene fibers complying with ASTM C 1116 Type III 4.1.3. Fiber shall be approved by COR. The following is considered acceptable:

“Fibermesh InForce” SI Concrete Systems

D. WATER - Potable.

E. ADMIXTURES

1. Air-entraining, ASTM C260, subject to compliance with requirements, provide one of the following:

“DARAVAIR AT60”; Grace Corp.

"SIKA AER"; Sika Corp.

2. Water-Reducing Admixture (when approved by the COR): ASTM C494, Type A, and contain no more than 0.1% chlorine ions.

Available products: Subject to compliance with requirements, products which may be incorporated in the work include, but are not limited to, the following:

"Eucon WR-75"; Euclid Chemical Co.

"Pozzolith 344"; Master Builders

3. Water-reducing, Nonchloride Accelerator Admixture (when approved by the COR): ASTM

C494, Type E, and containing not more than 0.1% chloride ions.

Available Products: Subject to compliance with requirements, products which may be incorporated in the work include, but are not limited to, the following:

"Accelguard 80"; Euclid Chemical Co.

"Pozzolith NC534"; Master Builders

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4. Calcium chloride or admixture containing more than 0.1% chloride ions are not permitted.

2.04 JOINT SEALING COMPOUND – Complying with ASTM C920. Provide the following, or approved equal.

POURTHANE NS or POURTHANE SL manufactured by W.R. Meadows “Vulkem 45 SSL”; Tremco Inc.

2.05 NON-SHRINK NON-METALLIC GROUT - Dowels must be anchored with this material, and must set up within 30 minutes. Comply with ASTM C 881, Type IV, Grade 3, Class A, B, or C. In lieu of these, either a polyester, vinyl ester, or epoxy grout may be used. These grouts consist of a Component A (Resin) and Component B (hardening agent). Grout must be approved by the COR prior to use.

2.06 CURING COMPOUND: - Complying with ASTM C-309, Type 1 or 1-D. Provide the following, or approved equal.

"SEALTIGHT 1100-Clear Series”; W.R. Meadows, Inc.

2.07 CONTROL JOINTS (PREMANUFACTURED) AND EXPANSION JOINTS:

A. Interior slabs: Plastic or metal – type to be approved by the COR.

B. Exterior flat work: FILLER: W. R. Meadows, INC Sponge Rubber Expansion Joint, 1/2 inch thick with Expansion Joint Cap SNAP-CAP or approved equal.

2.08 PROPORTIONING AND DESIGN OF MIXES

A. Prepare design mixes for each type and strength of concrete by either laboratory trial batch or field experience methods as specified in ACI 301. If trial batch method is used, use an independent testing facility acceptable to the COR for preparing and reporting proposed mix designs. The testing facility shall not be the same as used for field quality control testing unless otherwise acceptable to the COR.

B. Submit written reports to the COR of each proposed mix for each class of concrete at least 15 days prior to start of work. Do not begin concrete production until mixes have been reviewed by the COR.

C. Design mixes to provide normal weight concrete with the following properties, and as indicated on the drawings:

1. 4000 psi 28-day compressive strength; W/C ratio 0.45 maximum (air-entrained concrete).

2. Maximum size of Coarse Aggregate: 1 inch (size number 57 or 67).

3. Total Air Content by Volume: per E. Admixtures

4. Minimum Cement Content: 520 pounds per cubic yard of concrete.

5. Maximum Water-Soluble Chloride Ion Content by Weight of cement. 0.30 percent.

6. Synthetic Concrete Fiber Content: 1.5 pounds per cubic yard concrete.

D. Adjustment to Concrete Mixes:

1. Mix design adjustments may be requested by Contractor when characteristics of materials, job conditions, weather, test results, or other circumstances warrant; at no additional cost to the Government and as accepted by the COR. Laboratory test data for revised mix design and strength results must be submitted to and accepted by the COR before using in work.

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2. Slump Limits: Proportion and design mixes to result in concrete slump at point of placement as follows for Ramps, Slabs, and Sloping Surfaces: Not more than 4".

E. Admixtures:

1. Use water-reducing admixture or high range water-reducing admixture (super-plasticizer) in concrete as required for placement and workability, if approved by the COR.

2. Use non-chloride accelerating admixtures in concrete slabs placed at ambient temperatures below 50°F (10°C), if approved by the COR.

3. Use air-entraining admixture in exterior exposed concrete, unless otherwise indicated. Add air-entraining admixture at manufacturer's prescribed rate to result in concrete at point of placement having total air content within the following limits:

a. Concrete structures and slabs exposed to freezing and thawing, de-icer chemicals, or subjected to hydraulic pressure: 5-8 percent.

4. Use admixtures for water-reducing and set control in strict compliance with manufacturer's directions for fiber containing concrete.

2.09 CONCRETE MIXES

A. Provide batch ticket for each batch discharged and used in work indicating project identification name and number, date, mix type, mix time, quantity, and amount of water introduced.

B. Ready Mixed Concrete: Comply with requirements of ASTM C94, and as specified herein.

3.01 FORMS

A. Design, erect, support, brace and maintain formwork to support loads.

B. Construct formwork so concrete members and structures are of correct size, shape, alignment, elevation and position.

C. Build formwork to be readily removable without impact, shock or damage to cast-in-place concrete surfaces and adjacent materials.

D. Chamfer exposed corners and edges 3/4 inch or bullnose with tools as indicated, using wood, metal, PVC, or rubber chamfer strips fabricated to produce uniform smooth lines and tight edge joints.

E. Unless otherwise indicated, provide ties so portion remaining within concrete after removal is 1" inside concrete and will not leave holes larger than 1" diameter in concrete surface.

F. Provide opening in concrete formwork to accommodate work of other trades. Determine side and location of opening, recesses and chases from trades providing such items. Accurately place and securely support items built into forms.

G. Tolerances:

1. Variation in thickness of slabs shall not exceed minus 1/4 inch or plus 1 inch.

2. Variation from plumb lines and surfaces of columns, walls, flat-work shall not exceed 1/8 inch in 10 feet.

3.02 PLACING REINFORCEMENT

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A. Comply with Concrete Reinforcing Steel Institute's recommended practice for "Placing

Reinforcing Bars," for details and methods of reinforcement placement and supports, and as herein specified.

B. Clean reinforcement of loose rust and mill scale, earth, ice, and other materials which reduce or destroy bond with concrete.

C. Accurately position, support and secure reinforcement against displacement by formwork, construction, or concrete placement operations. Locate and support reinforcing per Section 2.02 E ‘Supports for Reinforcement’.

D. Except where shown otherwise on drawings, a minimum concrete coverage for steel reinforcement shall be as follows:

Minimum Cover

1. Exposed to earth and weather (sidewalks, etc.)

#6 through #18 bars 2 inches #5 bars and smaller 1½ inches

E. Arrange, space and securely tie bars and bar supports to hold reinforcement in position during concrete placement operations. Set wire ties so ends are directed into concrete, not toward exposed concrete surfaces.

3.03 JOINTS

A. Construction Joints:

1. When construction joints are necessary, they shall be made and located as indicated and detailed on the drawings.

2. If for any reason the contractor feels a change is necessary, he shall submit a revised placing plan to the COR for approval.

3. Install construction joints in accordance with ACI 301.

4. Approved key shall be used at all joints, unless detailed otherwise.

5. All joints not shown on the drawings shall require the prior approval of the COR.

B. Control Joints (Slabs):

1. Location

a. As indicated on the drawings or spaced in accordance with PCA “Design and Control of

Concrete Mixtures”

b. Install control joints in accordance with ACI recommended practices

2. Type: (Contractor's Option)

a. Same as construction joints.

b. Pre-manufactured.

c. Sawn: ¼ depth of slab within 12 hours of placement.

d. Tooled joint in unset concrete, minimum ¼ depth of slab.

C. Expansion Joints:

1. Location:

a. where concrete lies against buildings or other structures or as indicated on the drawings.

2. Installation of Joint Filler:

a. Install joint filler 1/2” (6 mm) below concrete finish level.

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b. Slide expansion joint cap over the expansion joint filler, prior to application of joint sealant.

c. Place concrete and allow to cure.

d. Remove expansion joint cap, pull free and discard.

e. Seal with joint sealant.

3.04 PREPARATION OF FORM SURFACES

A. Clean re-used forms of concrete matrix residue repair and patch as required to return forms to acceptable surface condition.

B. Coat contact surfaces of forms with a form-coating compound before reinforcement is placed.

C. Thin form-coating compounds only with thinning agent of type, and in amount, and under conditions of form-coating compound manufacturer's directions. Do not allow excess form-coating material to accumulate in forms or to come into contact with in-place concrete surfaces against which fresh concrete will be placed. Apply in compliance with manufacturer's instructions.

D. Coat steel forms with a non-staining, rust-preventative form oil or otherwise protect against rusting. Rust-stained steel formwork is not acceptable.

3.05 CONCRETE PLACEMENT

A. COR must inspect forms before any concrete is placed. Notify COR at least 24 hours before any placement to permit inspections. The 24 hours shall not include weekends or holidays.

B. Immediately prior to placement, treat the forms with form oil or moisten with water, and moisten the subgrade.

C. Comply with ACI 304 "Guide for Measuring, Mixing, Transporting, and Placing Concrete," and as herein specified.

D. Deposit concrete continuously or in layers of such thickness that no concrete will be placed on concrete which has hardened sufficiently to cause the formation of seams or planes of weakness.

If a section cannot be placed continuously, provide construction joints as herein specified.

Deposit concrete as nearly as practicable to its final locations to avoid segregation.

E. Consolidate placed concrete by mechanical vibrating equipment supplemented by hand-spading, rodding, or tamping. Use equipment and procedures for consolidation of concrete in accordance with ACI recommended practices.

F. Do not use vibrators to transport the concrete inside forms. Insert and withdraw vibrators vertically at uniformly spaced locations not farther than visible effectiveness of machine. Place vibrators to rapidly penetrate placed layer and at least 6" of preceding layer. Do not insert vibrators into lower layers of concrete that have begun to set. At each insertion limit duration of vibration to time necessary to consolidate concrete and complete embedment of reinforcement and other embedded items without causing segregation of mix.

G. Deposit and consolidate concrete slabs in a continuous operation, within limits of construction joints, until the placing of a panel or section completed.

H. Consolidate concrete during placing operations so that concrete is thoroughly worked around reinforcement and other embedded items and into corners.

I. Bring slab surfaces to correct level with straightedge and strike-off.

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J. Maintain reinforcing in proper position during concrete placement operations.

K. Cold Weather Placing:

1. Protect concrete work from physical damage or reduced strength which could be caused by frost, freezing actions, or low temperatures, in compliance with ACI 306 and as herein specified.

2. When air temperature has fallen to or is expected to fall below 40°F (4°C), uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less 50°F (10°C), and not more than 80°F (27°C) at point of placement.

3. Do not use frozen materials or materials containing ice or snow. Do not place concrete on frozen subgrade or subgrade containing frozen materials.

4. Do not use calcium chloride, salt or other materials containing antifreeze agents or chemical accelerators, unless otherwise accepted in mix designs.

L. Hot Weather Placing

1. When hot weather conditions exist that would seriously impair quality and strength of concrete, place concrete in compliance with ACI 305 and as herein specified.

2. Cool ingredients before mixing to maintain concrete temperatures at time of placement below

90°F (32°C).

3. Mixing water may be chilled, or chopped ice may be used to control temperature provided water equivalent of ice is calculated to total amount of mixing water.

3.06 MIXING AND DELIVERY

A. ASTM C94 with the following additions:

1. Discharge concrete within 1½-hour or before 300 revolutions of the drum after introduction of the mixing water to the cement and aggregate or introduction of the cement to the aggregates. If the ambient air temperature is above 80°F this shall be reduced to 1 hour or 200 revolutions. Time may be extended at the discretion of the COR, which shall not relieve the Contractor from other specification requirements.

2. If long hauling distance does not permit meeting the requirement above, add cement and water to the truck mixer at the construction site.

3. After introduction of fiber, concrete must be mixed at high speed for 5 minutes or 70 revolutions to ensure uniform distribution of fiber.

4. Each admixture shall be added separately.

5. Produce and deliver concrete to permit a continuous placement. The time interval between placements is not to exceed 30 minutes (20 minutes if the ambient air temperature is above 80°F). If the time interval exceeds this it shall be treated as a construction joint.

6. Do not place concrete that has developed an initial set.

7. Water may be added at the beginning of the placement with approval of COR, this shall not relieve the Contractor from other specification requirements.

8. No water shall be added after the placement has begun.

3.07 MONOLITHIC SLAB FINISHES

A. Non-Slip Broom Finish

1. Apply non-slip broom finish to exterior concrete slabs, platforms, steps and ramps, and elsewhere as indicated.

2. Immediately after trowel finishing, slightly roughen concrete surface by brooming with fiber bristle broom perpendicular to main traffic route.

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3.08 REUSE AND COATING OF FORMS

A. Thoroughly clean forms and recoat with form coating before each reuse.

B. Do not reuse any form for exposed work which cannot be reconditioned to "like new" condition.

C. Apply form coating to all forms in accordance with the manufacturer's specifications.

3.09 REMOVAL OF FORMS AND SHORES

A. The supporting forms and shoring shall not be removed until the members have acquired sufficient strength to support their weight and the loads superimposed thereon safely.

B. In no case may any forms or shoring be removed until the time and sequence has been approved by the COR.

C. Earlier removal than specified below may be approved by the COR, based on the weather and tests of job-cured cylinders.

D. Any request for earlier removal of forms and shoring shall be made to the COR in writing, along with…