Amended_Specification_Sections.pdf

ATTACHMENT 01 FA462619RA004

DEMO BLDG 1150

PROJECT NO. 1044085

SPECIFICATION INDEX 1

SPECIFICATION INDEX

DIVISION 01 – GENERAL REQUIREMENTS

GENERAL REQUIREMENTS ...................................................................................................... 01 00 00 Quality Control Report to Inspector

SECURITY ........................................................................................................................................... 01 00 10

ENVIRONMENTAL PROTECTION ........................................................................................... 01 36 00 Waste Management Plan Recovered Materials Written Determination Form Recycled Materials Use Report Monthly Report of Solid Waste Disposal and Diversion Sample of Hazardous Materials List

DIVISION 02 – EXISTING CONDITIONS

SELECTIVE DEMOLITION ......................................................................................................... 02 07 00

LEAD BASED PAINT ABATEMENT .......................................................................................... 02 08 33 Pre-Renovation Asbestos and Lead Paint Inspection Report

ASBESTOS ABATEMENT ............................................................................................................... 02 85 00

DIVISION 03 – CONCRETE

CAST-IN-PLACE CONCRETE ...................................................................................................... 03 30 00

DIVISION 31 – EARTHWORK

GRADING ............................................................................................................................................ 31 22 00

TRENCHING EXCAVATION AND BACKFILL FOR PIPELINES AND APPURTENANT

STRUCTURES .................................................................................................................................... 31 23 33

DIVISION 32 – EXTERIOR IMPROVEMENTS

GEOTEXTILE USED IN CONSTRUCTION APPLICATIONS ........................................... 32 05 19

AGGREGATE BASE COURSE ...................................................................................................... 32 11 23

ASPHALTIC PAVEMENT REPLACEMENT ............................................................................. 32 12 16

PROJECT NO. 1044085

SPECIFICATION INDEX 2

COLD MILLING ................................................................................................................................ 32 12 17

AGGREGATE SURFACE COURSE ............................................................................................. 32 15 00

TRENCHING FOR IRRIGATION SYSTEM .............................................................................. 32 22 50

IRRIGATION SYSTEM .................................................................................................................... 32 76 00

SEEDING ............................................................................................................................................. 32 92 19

DIVISION 33 – UTILITIES

WATER UTILITY DISTRIBUTION SYSTEM ............................................................................ 33 11 00

STORM DRAIN .................................................................................................................................. 33 40 00

PROJECT NO. 1044085

GEOTEXTILE USED IN CONSTRUCTION APPLICATIONS 32 05 19 - 1

SECTION 32 05 19 - GEOTEXTILE USED IN CONSTRUCTION APPLICATIONS

PART 1 – GENERAL

1.1 DESCRIPTION

Geotextile to prevent mixing of fine grained soil and course aggregate base course and geogrid to provide mechanical interlock within the course aggregate section.

1.2 REFERENCES, PUBLICATIONS

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

A. AASHTO Standards:

AASHTO M288-96 Geotextile Specification for Highway Applications

B. American Society for Testing and Materials (ASTM):

ASTM D 4355 Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture and Heat in a Xenon Arc Type Apparatus

ASTM D 4491 Test Methods for Water Permeability of Geotextiles by

Permittivity

ASTM D 4751 Test Method for Determining Apparent Opening Size of a Geotextile

ASTM D 4873 Standard Guide for Identification, Storage, and Handling of Geosynthetic Rolls and Samples

ASTM D 4884 Standard Test Method for Strength of Sewn or Bonded

Seams of Geotextiles

ASTM D 5818 Standard Practice for Exposure and Retrieval of Samples to Evaluate Installation Damage of Geosynthetics

ASTM D 6637 Standard Test Method for Determining Tensile Properties of Geogrids by the Single or Multi-Rib Tensile Method

ASTM D 6706 Standard Test Method for Measuring Geosynthetic

Pullout Resistance in Soil

ASTM D 6767 Standard Test Method for Pore Size Characteristics of

Geotextiles by Capillary Flow Test

GEOTEXTILE USED IN CONSTRUCTION APPLICATIONS 32 05 19 - 2

ASTM D 7737 Standard Test Method for Individual Geogrid Junction

Strength ASTM D 7748 Standard Test Method for Flexural Rigidity of Geogrids, Geotextiles and Related Products

C. Federal Highway Administration (FHWA) - Geosynthetic Design and Construction Guidelines, Publication No. FHWA HI-95-038, May 1995.

1.3 SUBMITTALS

A. Submit the following :

1. Certification: Provide a certificate stating the name of the manufacturer, product name, style number, chemical composition of the filaments or yarns and other pertinent information to fully describe the geotextile or geogrid.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Materials labeling, shipment, and storage shall follow ASTM D 4873. Product labels shall clearly show the manufacturer or supplier name, style name, and roll number.

B. Each roll shall be wrapped with a material that will protect the material from damage due to shipment, water, sunlight, and contaminants.

C. During storage, material rolls shall be elevated off the ground and adequately covered to protect them from site construction damage, precipitation, and extended ultraviolet radiation including sunlight.

PART 2 – PRODUCTS

2.1 MATERIALS

A. Geotextile Stabilization Fabric.

1. The geotextile stabilization fabric shall be composed of high-tenacity polypropylene filaments which are woven into a stable network such that the filaments retain their relative position. The geotextile shall be inert to biological degradation and resistant to naturally encountered chemicals, alkalis and acids.

2. The stabilization geotextile shall be Mirafi RS380i or approved equal and meet the requirements of Table 1.

GEOTEXTILE USED IN CONSTRUCTION APPLICATIONS 32 05 19 - 3

TABLE 1 –GEOTEXTILE

Property Test Method Minimum Average Roll Value

Tensile Modulus @ 2% strain

(CD)

ASTM D 4595 51,000 lbs/ft

Flow Rate ASTM D 4491 75 gal/min/ft2

Permittivity ASTM D 4491 0.9 sec-1

AOS ASTM D 4751 40 US Sieve

Pore Side 095 ASTM D 6767 365 microns

Pore Size 050 ASTM D 6767 185 microns

Interaction Coefficient 2 ASTM D 6706 0.89

Factory Sewn Seam ASTM D 4884 2700 lbs.ft

US Resistance (at 500 hours) ASTM D 4355 80 % strength retained

B. Biaxial Geogrid.

1. The biaxial geogrid shall be integrally formed biaxial geogrid composed of polypropylene with a positive mechanical interlock load transfer mechanism in accordance with ASTM D 4759. The geogrid shall be inert to biological degradation and resistant to naturally encountered chemicals, alkalis and acids.

3. The geogrid shall be Tensar BX1200 or approved equal and meet the requirements of Table 2.

TABLE 2 - GEOGRID

Property Test Method MD Values XMD Values

Aperture Dimensions --- 1.0 inches 1.3 inches

Minimum Rib Thickness --- 0.05 inches 0.05 inches

Tensile Strength @ 2% Strain

ASTM D 6637 410 lb/ft 620 lb/ft

Tensile Strength @ 5% Strain

ASTM D 6637 810 lb/ft 1,340 lb/ft

Ultimate Tensile Strength ASTM D 6637 1,310 lb/ft 1,970 lb/ft

Junction Efficiency ASTM D 7737 93% ---

Flexural Stiffness ASTM D 7748 750,000 mg-cm ---

Aperture Stability --- 0.65 m-N/deg ---

Resistance to Installation Damage

ASTM D 5818 & D 6637 95%SC/93%SW/90%

GP

Resistance to Long Term Degradation

--- 100% ---

Resistance to UV Degradation

ASTM D 4355 100% ---

GEOTEXTILE USED IN CONSTRUCTION APPLICATIONS 32 05 19 - 4

PART 3 – EXECUTION

3.1 PREPARATION

A. The installation site shall be prepared by clearing, grubbing, and excavation or filling the area to the design grade. This includes removal of topsoil and vegetation.

3.2 INSTALLATION

A. The geotextile and geogrid shall be laid smooth without wrinkles or folds on the prepared subgrade in the direction of construction traffic. Adjacent geotextile and geogrid rolls shall be overlapped 24 inches.

B. On curves, the geotextile and geogrid may be folded or cut to conform to the curves. The fold or overlap shall be in the direction of construction and held in place by pins, staples, or piles of fill or rock.

C. The base shall be placed by end dumping onto the geotextile and geogrid from the edge of the geotextile or geogrid, or over previously placed base aggregate.

Construction vehicles shall not be allowed directly on the geotextile or geogrid.

The base shall be placed such that at least the minimum specified lift thickness shall be between the geotextile and equipment tires or tracks at all times. Turning of vehicles shall not be permitted on the first lift above the geotextile or geogrid.

END OF SECTION 32 05 19

COLD MILLING 32 12 17 - 1

SECTION 32 12 17 – COLD MILLING

PART 1 - GENERAL.

1.1 DESCRIPTION

A. The work in this section consists of the removal of existing bituminous pavement at the locations and depth specified in the contract. Existing pavement in contact with new asphalt shall receive a tack coat.

PART 2

Not Used

PART 3 - MATERIALS.

3.1 TACK COAT

A. All surfaces that will come in contact with the existing asphalt pavement shall receive a tack coat, as specified in Section 32 12 16 including all curbs, gutters, headers, manholes, valve boxes, monument boxes, existing concrete and asphaltic pavement, including contact edges, and all other surfaces other than base gravel. The tack coat shall be a thin uniform coating.

PART 4 – EXECUTION.

4.1 EQUIPMENT

A. The Contractor shall use a power-operated cold milling machine equipped to control cross slope and to establish profile grade from the existing pavement.

B. Use a cold milling machine cutting head having a maximum ¼-inch tooth spacing.

Equip milling machine with automatic controls and sensors on both sides to maintain specified grade and transverse slope.

C. Do not operate the milling machine in excess of 75 feet per minute unless it can be demonstrated to the Contracting Officer that the milled surface can meet the plant mix overlay surface tolerance specified.

D. Do not begin placing seal and cover until all cold mill work is complete.

4.2 MILLING

A. Begin milling at the center of the road, on a longitudinal line parallel to the centerline with succeeding passes progressing to the outer edge of the pavement, unless directed by the Contracting Officer. Remove all thin delaminated or loose layers of existing pavement left after the milling.

COLD MILLING 32 12 17 - 2

B. Mill the existing pavement at the locations, widths, and depths specified. The depth is measured below the existing pavement plane projected from points on un-distorted pavement near the centerline and the edge of the driving lane.

C. If new surfacing cannot be placed on the milled area the same day, transition at no less than 59H:1V to the original surface. The completed milled surface is to be free from transverse and longitudinal irregularities exceeding ¼-inch when measured with a 10-foot straightedge. Each successive pass will be pulled even with the previous and not staggered.

D. After cold milling, do not leave the remaining pavement exposed to traffic more than 72 hours before placing plant mix surfacing. The 72 hour duration may be modified depending on the durability of the milled surface at the direction of the Contracting Officer.

E. The Contractor shall be responsible to repair any damage that occurs to the roadway prior to plant mix paving. Do not proceed with paving without the approval of the Contracting Officer.

4.3 SALVAGE

A. Salvage, haul and remove millings off-site. Milled pavement is the Contractor’s property and shall be legally disposed.

END OF SECTION 32 12 17

PROJECT NO. 1044085

SEEDING 32 92 19 - 1

SECTION 32 92 19 - SEEDING

1. GENERAL.

The work described in this section shall consist of providing all labor, services, fertilizer, seed and equipment to establish grasses per these specifications. The Contractor shall return site to grass and maintain until lawn is established.

The Contractor shall be or shall employ an expert plantsman who will be present during all seeding operations and direct the work All vegetation must meet or exceed the cold hardiness rating for USDA hardiness zone 3a (-35 to -30F).

All areas designated on the drawings and/or disturbed prior to and during construction shall be seeded to grass.

1.1 SUBMITTALS

A. The Contractor shall submit product data and certifications for the following:

1. Grass Seed

2. Topsoil

3. Fertilizer

2. APPLICABLE PUBLICATIONS.

Not used

3. PRODUCTS.

3.1 Grass Seed. Grass seed will be provided by the Contractor. All grass seed shall be certified free from noxious weeds, recleaned, Grade A recent crop seed. It shall be treated with appropriate fungicide and delivered to the site in sealed containers with dealer’s guaranteed analysis. All seed shall be properly stored by the Contractor and any seed damaged during such storage shall be replaced by the Contractor at his expense.

The seed mixture will depend on the specified type of area to be seeded. All seed should be the selected varieties, or alternative equal varieties accepted in advance by the Government. The specified varieties establish the grass performance characteristics desired. Requests for approval as an equal shall furnish all information necessary for the Contracting Officer to make a determination whether or not the requested substitution is equal to or better than the specified variety in all respects. The Contractor shall submit certifications to the Contracting Officer for approval.

PROJECT NO. 1044085

SEEDING 32 92 19 - 2

3.2 Lawn Grass Mixture for Irrigated Lawns

Plant Cultivar & Species Proportion by Weight in Mixture % Purity % Germination

Common Kentucky Bluegrass 20% 98%

90% Pixie Turf Type Tall Fescue 80% 98%

90%

Seed shall comply with and be labeled in accordance with current Federal and Montana seed quality criteria. Seed shall be certified weed free and have been grown in the North American Continent above 47 latitude. All seed shall be standard grade adapted to Montana conditions.

3.3 Source Quality Control: Seed materials shall be subject to inspection and acceptance.

Contracting Officer reserves right to reject at any time or place prior to acceptance of work, seed which in Contracting Officer’s opinion fails to meet these specification requirements. Inspection is primarily for quality; however, other requirements are not waived even though visual inspection results in acceptance. Inspection shall be made periodically during seeding, at completion, and at end of warranty period.

3.4 Testing Requirements: Seed and seed label shall conform to current State and Federal regulations and subject to testing provisions of Association of Official Seed Analysis.

3.5 Topsoil. Topsoil from existing stripped material or from off-site. Off-site material shall have compost added to the topsoil during new construction or landscape enhancement. Topsoil shall be obtained from well-drained areas and shall be free of any foreign matter, toxic substances, and any material or substances that may be harmful to plant growth. Topsoil shall be tested by an independent soil lab and if required, amended or processed to conform to the following requirement.

Topsoil Specifications Adding 1 Yard of Compost per 1000 square feet

Characteristic Optimum Minimum Maximum pH 6.5 5.5 8.3

Nitrate (#/ac) 50 1 300

Organic Matter (%) 2 to 3 0.5 5

Phosphorus (Olsen, ug/g) 40 2 150

Potassium (ug/g) 500 100 1000

Sodium (meq/100g) < .5 n/a 2.5

Calcium (meq/100g) > 5.0 0.5 20

Sulfate as S (ug/g) 20 to 100 3 1000

Conductivity (mmhos / cm) < 0.5 n/a 2.5

Lime (qualitative) Slight None Medium

The Contractor shall furnish off-site topsoil and amendments.

SEEDING 32 92 19 - 3

3.6 Fertilizer. Fertilizer shall only be used in the improved portions of Base that receive daily irrigation. On seeded areas the fertilizer shall be spread 12-months after seeding or as soon as the grass has become established, whichever is sooner. Fertilizer shall be 10-40-10 and be furnished by the Contractor and shall be applied to selected areas at a rate of 400 pounds per acre.

Fertilizer to be spread on areas to be seeded should be commercially prepared, complete, uniform in composition, dry and free flowing. The fertilizer should be delivered to the site in the original waterproof containers, each bearing the manufacturer’s statement of analysis. If stored at the site, protect fertilizer from the elements at all times.

Fertilizer to be spread areas shall meet the same specifications but shall be spread on the prepared surface.

The Contracting Officer reserves the right to request the contractor to obtain independent tests of the material at any time and to accept or reject the material based on these tests.

If the fertilizer is not used immediately, the Contractor shall store the unused material in such a manner that its usefulness will not be impaired.

4. EXECUTION.

4.1 Seeding. The amount of area to be seeded shall be on all disturbed areas not receiving hard surface.

4.2 Time of Seeding. Seeding should primarily occur between October 15 and May 15. Warm season grasses should be planted in the summer with adequate watering. The seed shall not be drilled or sown during windy weather, snow is on the ground, or when ground is otherwise untillable. Seeding in questionable conditions must be approved by the Contracting Officer.

4.3 Preparation of Seedbed. Seed bed preparation should not commence until the moisture conditions make the ground area and soil friable. The ground should be hand or machine raked so as to remove all debris, clods, rocks, and other material larger than 1 inch, to a depth 2 inches. Such debris, clods, rocks, and other material so removed should be disposed of off the Base at the Contractor’s expense. Grade lawn areas to finish grades, filling as needed or removing surplus earth and floating areas to a smooth uniform grade. All lawn areas should slope to drain. Where no grades are shown, surfaces should have a smooth and continual grade between existing or fixed controls such as walks, curbs, catch basins, elevations at steps or buildings. Roll, scarify, rake, and level as necessary to obtain true even lawn surfaces. All finish grades must have approval of the Contracting Officer before seed is sown.

4.4 Fertilizing Seeded Grass. Grass species do not utilize fertilizer very effectively in the first year.

Fertilizer should only be applied at the time of seeding on sites with poor fertility or granitic soils (determined by a soil test). Fertilizer,10-40-10, shall be applied to seeded areas at a rate of 400 pounds per acre. A time-released fertilizer may have benefits depending on site conditions.

4.5 Seeding Turf. Soil that is too loose or dry for good handling must be moistened and lightly rolled before seeding. Small grass, forbs, and legume seeds shall be planted no deeper than ½ inch.

PROJECT NO. 1044085

SEEDING 32 92 19 - 4

Large grass seeds shall be planted no deeper than 1 inch. Seed shall be sown at the rate of 7 pounds of lawn grass mixture per 1,000 square feet Seed should be sown exercising great care that a uniform distribution of seed is obtained. Seeding should be done on a still day, using a drill seeder. On slopes too steep to drill a hopper type broadcast spreader may be used as long as the seed is raked and covered afterwards.

4.6 Hand Seeding. Hand seeding or mechanical seeding of narrow medians or small areas is permissible as long as soil preparation, mulching, and all other requirements are met.

4.7 Establishment.

4.7.1 General. The Contractor shall be responsible for seeding and growth.

4.7.2. Water. Water may be available from an existing Malmstrom source. The Contractor is responsible to supply water required to establish stand of grass either from the Malmstrom source or his own source. The Contractor shall provide portable watering equipment when needed.

Adequate moisture must be available at all times during the pre-sprout phase and the top 1 inch of soil should stay moist at all times. The germination time for grass seed ranges from 5 to 30 days depending on the variety. It can be even longer than this in cooler temperatures. Newly seeded areas will be watered at least twice per day but the overall frequency and duration of watering shall be determined on-site by the Contractor based on soil conditions, temperature, and weather.

Watering will be reduced to once a day when the grass reaches a height of 4 inches. After the second cutting the grass shall be considered established and special watering regimes may cease.

Contractors will avoid:

- over watering that results in puddles on the surface

- runoff and seed movement on sloping ground

- over watering that allows the soil to get soggy and spongy

- overwatering areas that are shaded

- uneven watering due to sprinklers that are clogged, not adjusted or inadequately designed

- under watering new grass seed, especially not often enough due to any and all reasons

4.7.3 Cutting. The initial grass cutting shall commence when the new grass reaches a height of 4 inches. At this time the new grass will be cut back to 3 inches. A final inspection will be held after the 2nd cutting. Reseed and water areas in which no stand of grass is established.

4.7.4 Reseeding. Vegetative coverage must be restored to at least 70% compared to the surrounding undisturbed area. Reseeding shall be completed only in such period as may be allowed by the Contracting Officer. Reseeding shall be with the same seed types, mixture and method as originally used and shall be applied at the rate specified for the original seeding in a manner that will cause a minimum of disturbance of the existing stand of grass. Reseeding shall be accomplished at no additional cost to the Government. Seed for reseeding will be supplied by the Contractor.

4.7.5 Repair. If at any time before completion and acceptance of the entire work covered by this contract, any portion of the surface becomes gullied or otherwise damaged following seeding the

PROJECT NO. 1044085

SEEDING 32 92 19 - 5

affected portion shall be repaired to re-establish the condition and grade of the soil prior to seeding and shall then be reseeded as specified above, at the Contractor's expense.

If seeded grass fails to grow or dies, the affected portion shall be removed and the area repaired and reseeded, as appropriate, by the Contractor at no additional expense to the Government. The Contractor shall be responsible for maintaining the grass until it is successfully established.

END OF SECTION 32 92 19