Cove_Rec_Site_Host_Cabana_Specifications.pdf

U.S. Department of the Interior

Bureau of Land Management

Cove Recreation Host Site Cabana

05/18/21

TABLE OF CONTENTS

APRIL 2021

TABLE OF CONTENTS

SPECIFICATIONS

DIVISION 01 – GENERAL REQUIREMENTS

010000 – GENERAL REQUIRMENTS

DIVISION 03 – CONCRETE

033000 – CAST-IN-PLACE CONCRETE

DIVISION 13 – SPECIAL CONSTRUCTION

130470 – PRE-ENGINEERED SHELTERS

DIVISION 32 – EXTERIOR IMPROVEMENTS

312000 – EARTHMOVING

END OF SECTION

GENERAL REQUIREMENTS

010000 - 1

SECTION 010000 - GENERAL REQUIREMENTS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of Contract, including General and Supplementary Conditions apply to this Section.

1.2 SECTION 011000 - SUMMARY OF WORK

A. Project Description:

1. The Project consists of the following: Installation of one (1) new 20 foot x 34 foot Gable Roof Rectangular Shelter with a eave height of 13 feet and one (1) 20 foot x 36 foot x 6 inch reinforced concrete slab.

B. Contractor Use of Premises:

1. General: During the construction period the Contractor shall have use of the premises for construction operations, including use of the site. The Contractor’s use of the premises is limited by the Government’s ongoing operations.

1.3 SECTION 012000 - PROJECT MANAGEMENT AND COORDINATION

A. Pre-Construction Conference:

1. The Government will schedule a pre-construction conference and organizational meeting at the Project site or other convenient location after award. Conduct the meeting to review responsibilities and personnel assignments.

2. Attendees: The Government, and their consultants, the Contractor and its superintendent, major subcontractors, manufacturers, suppliers and other concerned parties shall each be represented at the conference by persons familiar with and authorized to conclude matters relating to the Work.

3. Agenda: Discuss items of significance that could affect progress.

4. The Contractor shall submit a work schedule at this time.

B. Coordination Meetings:

1. Conduct Project coordination meetings at regularly scheduled times convenient for all parties involved. Project coordination meetings are in addition to specific meetings held

010000 - 2 for other purposes, such as regular progress meetings and special pre-installation meetings.

2. Request representation at each meeting by every party currently involved in coordination or planning for the construction activities involved.

1.4 SECTION 013000 - SUBMITTAL PROCEDURES

A. Submittal Procedures:

1. Coordination: Coordinate preparation and processing of submittals with performance of construction activities. Transmit each submittal sufficiently in advance of performance of related construction activities to avoid delay.

a. Processing: Allow sufficient review time so that installation will not be delayed as a result of the time required to process submittals, including time for resubmittals.

1) Allow 5 calendar days for initial review. Allow additional time if processing must be delayed to permit coordination with subsequent submittals. The Contracting Officer will promptly advise the Contractor when a submittal being processed must be delayed for coordination.

B. Contractor's Construction Schedule:

1. Bar-Chart Schedule: Prepare a fully developed, horizontal bar- chart type Contractor's construction schedule.

C. Shop Drawings:

1. Submit newly prepared information, drawn to accurate scale. Highlight, encircle, or otherwise indicate deviations from the Contract Documents. Do not reproduce Contract

Documents or copy standard information as the basis of Shop Drawings. Standard information prepared without specific reference to the Project is not considered Shop

Drawings.

2. Shop Drawings include fabrication and installation drawings, setting diagrams, schedules, patterns, templates and similar drawings.

D. Product Data:

1. Collect Product Data into a single submittal for each element of construction or system.

Product Data includes printed information such as manufacturer's installation instructions, catalog cuts, standard color charts, roughing-in diagrams and templates, standard wiring diagrams and performance curves. Where Product Data must be specially prepared because standard printed data is not suitable for use, submit as "Shop

Drawings."

a. Mark each copy to show applicable choices and options. Where printed Product

Data includes information on several products, some of which are not required, mark copies to indicate the applicable information. Include the following information:

b. Final Submittals: Submit the following number of copies:

010000 - 3

1) For Government; 2 copies.

2) In addition to the quantities listed above, include the number required by the

Contractor and/or sub-contractor(s) and/or material supplier(s).

c. Distribution: Furnish copies of final submittal to installers, subcontractors, suppliers, manufacturers, fabricators, and others required for performance of construction activities. Show distribution on transmittal forms.

E. Samples:

1. Submit Samples for review of kind, color, pattern, and texture, for a final check of these characteristics with other elements, and for a comparison of these characteristics between the final submittal and the actual component as delivered and installed.

2. Maintain sets of Samples, as returned, at the Project site, for quality comparisons throughout the course of construction.

F. Government’s Action:

1. Except for submittals for record, information or similar purposes, where action and return is required or requested, the Contracting Officer will review each submittal, mark to indicate action taken, and return promptly.

1.5 SECTION 014000 - REFERENCE STANDARDS AND DEFINITIONS

A. Specification Format and Content Explanation:

1. Specification Format: These Specifications are organized into Divisions and Sections based on the Construction Specifications Institute's 33-Division format and

MASTERFORMAT numbering system.

2. Specification Content: This Specification uses certain conventions in the use of language and the intended meaning of certain terms, words, and phrases when used in particular situations or circumstances. These conventions are explained as follows:

a. Abbreviated Language: Language used in Specifications and other Contract

Documents is the abbreviated type. Words and meanings shall be interpreted as appropriate. Words that are implied, but not stated shall be interpolated as the sense required. Singular words will be interpreted as plural and plural words interpreted as singular where applicable and the context of the Contract Documents so indicates.

b. Imperative and streamlined language is used generally in the Specifications.

Requirements expressed in the imperative mood are to be performed by the

Contractor. At certain locations in the text, for clarity, subjective language is used to describe responsibilities that must be fulfilled indirectly by the Contractor, or by others when so noted.

1) The words "shall be" shall be included by inference wherever a colon (:) is used within a sentence or phrase.

B. Industry Standards:

010000 - 4

1. Applicability of Standards: Except where the Contract Documents include more stringent requirements, applicable construction industry standards have the same force and effect as if bound or copied directly into the Contract Documents to the extent referenced. Such standards are made a part of the Contract Documents by reference.

2. Publication Dates: Comply with the standard in effect as of the date of the Contract

Documents.

3. Conflicting Requirements: Where compliance with two or more standards is specified, and the standards may establish different or conflicting requirements for minimum quantities or quality levels. Refer requirements that are different, but apparently equal, and uncertainties to the Contracting Officer for a decision before proceeding.

a. Minimum Quantity or Quality Levels: The quantity or quality level shown or specified shall be the minimum provided or performed. The actual installation may comply exactly with the minimum quantity or quality specified, or it may exceed the minimum within reasonable limits. In complying with these requirements, indicated numeric values are minimum or maximum, as appropriate for the context of the requirements. Refer uncertainties to the Contracting Officer for a decision before proceeding.

4. Copies of Standards: Each entity engaged in construction on the Project is required to be familiar with industry standards applicable to that entity's construction activity. Copies of applicable standards are not bound with the Contract Documents.

a. Where copies of standards are needed for performance of a required construction activity, the Contractor shall obtain copies directly from the publication source.

5. Abbreviations and Names: Trade association names and titles of general standards are frequently abbreviated. Where such acronyms or abbreviations are used in the

Specifications or other Contract Documents, they mean the recognized name of the trade association, standards generating organization, authority having jurisdiction, or other entity applicable to the context of the text provision. Refer to the "Encyclopedia of

Associations," published by Gale Research Co., available in most libraries.

C. Submittals:

1. Permits, Licenses, and Certificates: For the Government’s records, submit copies of permits, licenses, certifications, inspection reports, releases, jurisdictional settlements, notices, receipts for fee payments, judgments, and similar documents, correspondence, and records established in conjunction with compliance with standards and regulations bearing upon performance of the Work.

1.6 SECTION 015000 - TEMPORARY FACILITIES

A. Regulatory Requirements:

1. Regulations: Comply with industry standards and applicable laws and regulations of authorities having jurisdiction.

B. Storage/Staging Area:

010000 - 5

1. Construct temporary area for trailers, equipment, and materials, located as approved by

Contracting Officer. Fencing of materials or equipment shall be required at this site.

Trailers, materials, or equipment shall not be placed or stored outside area unless trailers, materials, or equipment are assigned separate and distinct storage area by Contracting Of-ficer away from vicinity of construction site but within Government property boundaries.

C. Security and Protection Facilities Installation:

1. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

2. Temporary Erosion and Sedimentation Control: Provide measures to prevent soil erosion and discharge of soil-bearing water runoff and airborne dust to adjacent properties and walkways, according to requirements of authorities having jurisdiction.

3. Stormwater Control: Comply with authorities having jurisdiction. Provide barriers in and around excavations and subgrade construction to prevent flooding by runoff of stormwater from heavy rains.

1.7 SECTION 016000 - PRODUCT REQUIREMENTS

A. Quality Assurance:

1. Source Limitations: To the fullest extent possible, provide products of the same kind, from a single source.

B. Product Delivery, Storage, and Handling:

1. Deliver, store, and handle products using means and methods that will prevent damage, deterioration, and loss, including theft. Comply with manufacturer's written instructions.

C. Product Selection:

1. General Product Requirements: Provide products that comply with the Contract

Documents, that are undamaged and, unless otherwise indicated, that are new at time of installation.

a. Standard Products: If available, and unless custom products or nonstandard options are specified, provide standard products of types that have been produced and used successfully in similar situations on other projects.

1.8 SECTION 017000 - EXECUTION REQUIREMENTS

A. Installation:

1. General: Locate the Work and components of the Work accurately, in correct alignment and elevation, as indicated.

2. Install products at the time and under conditions that will ensure the best possible results.

Maintain conditions required for product performance until Substantial Completion.

010000 - 6

3. Conduct construction operations so no part of the Work is subjected to damaging operations or loading in excess of that expected during normal conditions of occupancy.

B. Progress Cleaning:

1. General: Clean Project site and work areas daily, including common areas. Coordinate progress cleaning for joint-use areas where more than one installer has worked. Enforce requirements strictly. Dispose of materials lawfully.

2. Site: Maintain Project site free of waste materials and debris.

3. Waste Disposal: Burying or burning waste materials on-site will not be permitted.

Environmental Considerations: Excavate areas of fuel or oil spills occurring during

Work to depth of 12 inches beyond contaminated material and remove from the work location. Observe prescribed measures to prevent water pollution to nearby water resources.

1.9 SECTION 018000 - CLOSEOUT PROCEDURES

A. Substantial Completion:

1. Preliminary Procedures: Before requesting inspection for Substantial Completion, com-plete the following. List exceptions in the request.

a. In the Payment Request that coincides with, or first follows, the date Substantial

Completion is claimed, show 100 percent completion for the portion of the Work claimed as substantially complete. Include supporting documentation for comple-tion as indicated in these Contract Documents and a statement showing an account-ing of changes to the Contract Sum.

1) If 100 percent completion cannot be shown, include a list of incomplete items, the value of incomplete construction, and reasons the Work is not complete.

b. Submit specific warranties, workmanship bonds, maintenance agreements, final certifications and similar documents.

c. Complete final clean up requirements.

2. Inspection Procedures: On receipt of a request for inspection, the Government will either proceed with inspection or advise the Contractor of unfilled requirements.

a. The Government will repeat inspection when requested and assured that the Work has been substantially completed.

b. Results of the completed inspection will form the basis of requirements for final acceptance.

B. Final Acceptance:

1. Preliminary Procedures: Before requesting inspection for final acceptance and final payment, complete the following. List exceptions in the request.

010000 - 7

a. Submit an updated final statement, accounting for final additional changes to the

Contract Sum.

b. Submit a copy of the Contracting Officer’s final inspection list of items to be com-pleted or corrected, stating that each item has been completed or otherwise re-solved for acceptance and the list has been endorsed and dated by the Contracting

Officer.

2. Reinspection Procedure: The Contracting Officer will reinspect the Work upon receipt of notice that the Work, including inspection list items from earlier inspections, has been completed, except items whose completion has been delayed because of circumstances acceptable to the Contracting Officer.

a. Upon completion of reinspection, the Contracting Officer will advise the Contrac-tor of Work that is incomplete or of obligations that have not been fulfilled but are required for final acceptance.

b. If necessary, reinspection will be repeated at the Contractor’s expense.

C. Warranties:

1. Materials and equipment furnished under this Contract shall be covered by the most-favorable commercial warranties Contractor provides to any customer for such materials or equipment. Rights or remedies provided shall be in addition to, and not limit, any rights afforded to Government by any other clause of this Contract. With respect to all warranties, expressed or implied, from manufacturers or suppliers for materials or equipment furnished under the Contract, Contractor shall:

a. Obtain warranties that would be given in normal, commercial practices.

b. Require warranties to be executed, in writing, for the benefit of the Government.

c. Submit warranties to Contracting Officer, prior to the final inspection.

D. Final Cleaning:

1. General: Provide final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and antipol-lution regulations.

2. Complete the following cleaning operations before requesting inspection for Substantial

Completion for entire Project or for a portion of Project.

a. Clean Project site, yard, and grounds, in areas disturbed by construction activities, including landscape development areas, of rubbish, waste material, litter, and other foreign substances.

b. Sweep paved areas broom clean. Remove petrochemical spills, stains, and other foreign deposits.

c. Rake grounds that are neither planted nor paved to a smooth, even-textured sur-face.

d. Remove tools, construction equipment, machinery, and surplus material from Pro-ject site.

e. Leave Project clean and ready for occupancy.

3. Disposal of Debris: Items or debris not designated as salvage by Government shall be-come property of Contractor. Disposal of materials off site in a legal manner and pay-

010000 - 8 ment of required fees shall be Contractor’s responsibility. Sale of material onsite will not be allowed, unless authorized in writing by Contracting Officer. When hazardous mate-rials are encountered during demolition operations, comply with applicable federal, state, and local regulations, laws, and ordinances concerning removal, handling, and protection against exposure or environmental pollution.

4. Comply with safety standards for cleaning. Do not burn waste materials. Do not bury debris or excess materials on Government property. Do not discharge volatile, harmful, or dangerous materials into drainage systems.

PART 2 - NOT USED

PART 3 - NOT USED

PART 4 - MEASUREMENT AND PAYMENT

4.1 METHOD AND MEASUREMENT

A. Units: There will be no separate measurement for individual items of work done under this

Contract. The work described in this section will not be measured for payment.

4.2 BASIS OF PAYMENT

A. Payment: Payment will be made at the Contract price, as indicated in the Bid Schedule, and will include full compensation for the work described in the Contract. Payment will be made under:

Pay Item Pay Unit

010000 (01) Mobilization & Construction Management Lump Sum

END OF SECTION 010000

CAST-IN-PLACE CONCRETE

033000 - 1

SECTION 033000 - CAST-IN-PLACE CONCRETE

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes cast-in-place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes.

B. Related Requirements:

1. Section 312000 "Earth Moving" for fill under slabs-on-grade.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Design Mixtures: For each concrete mixture. Submit alternate design mixtures when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

1. Indicate amounts of mixing water to be withheld for later addition at Project site.

1.4 INFORMATIONAL SUBMITTALS

A. Qualification Data: For testing agency.

B. Material Certificates: For each of the following, signed by manufacturers:

1. Cementitious materials.

2. Admixtures.

C. Material Test Reports: For the following, from a qualified testing agency:

1. Aggregates.

D. Field quality-control reports.

033000 - 2

1.5 QUALITY ASSURANCE

A. Testing Agency Qualifications: An independent agency, qualified according to ASTM C 1077 and ASTM E 329 for testing indicated.

1.6 FIELD CONDITIONS

A. Cold-Weather Placement: Comply with ACI 306.1 and as follows. Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing actions, or low temperatures.

1. When average high and low temperature is expected to fall below 40 deg F for three successive days, maintain delivered concrete mixture temperature within the temperature range required by ACI 301.

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

3. Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators unless otherwise specified and approved in mixture designs.

B. Hot-Weather Placement: Comply with ACI 301 and as follows:

1. Maintain concrete temperature below 90 deg F at time of placement. Chilled mixing water or chopped ice may be used to control temperature, provided water equivalent of ice is calculated to total amount of mixing water. Using liquid nitrogen to cool concrete is

Contractor's option.

2. Fog-spray forms, steel reinforcement, and subgrade just before placing concrete. Keep subgrade uniformly moist without standing water, soft spots, or dry areas.

PART 2 - PRODUCTS

2.1 CONCRETE, GENERAL

A. ACI Publications: Comply with the following unless modified by requirements in the Contract

Documents:

1. ACI 301.

2. ACI 117.

2.2

STEEL REINFORCEMENT

A. Reinforcing Bars: ASTM A 615/A 615M, Grade 60, deformed.

033000 - 3

2.3 CONCRETE MATERIALS

A. Source Limitations: Obtain each type or class of cementitious material of the same brand from the same manufacturer's plant, obtain aggregate from single source, and obtain admixtures from single source from single manufacturer.

B. Cementitious Materials:

1. Portland Cement: ASTM C 150/C 150M, Type I or Type II.

2. Fly Ash: ASTM C 618, Class F or C.

C. Normal-Weight Aggregates: ASTM C 33/C 33M, coarse aggregate or better, graded. Provide aggregates from a single source.

1. Maximum Coarse-Aggregate Size: 3/4 inch nominal.

2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

D. Air-Entraining Admixture: ASTM C 260/C 260M.

E. Chemical Admixtures: Certified by manufacturer to be compatible with other admixtures and that do not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A.

2. Retarding Admixture: ASTM C 494/C 494M, Type B.

3. Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D.

4. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F.

5. High-Range, Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type G.

6. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II.

2.4 CONCRETE MIXTURES, GENERAL

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301 (ACI 301M).

1. Use a qualified independent testing agency for preparing and reporting proposed mixture designs based on laboratory trial mixtures.

B. Cementitious Materials: Limit percentage, by weight, of cementitious materials other than portland cement in concrete as follows:

1. Fly Ash: up to 20 percent.

C. Admixtures: Use admixtures according to manufacturer's written instructions.

1. Use water-reducing, high-range water-reducing or plasticizing admixture in concrete, as required, for placement and workability.

2. Use water-reducing and -retarding admixture when required by high temperatures, low humidity, or other adverse placement conditions.

033000 - 4

3. Use water-reducing admixture in pumped concrete, concrete for heavy-use industrial slabs and parking structure slabs, concrete required to be watertight, and concrete with a w/c ratio below 0.50.

4. Use corrosion-inhibiting admixture in concrete mixtures where indicated.

2.5 CONCRETE MIXTURES FOR BUILDING ELEMENTS

A. Footings: Normal-weight concrete.

1. Minimum Compressive Strength: 4000 psi at 28 days.

2. Maximum W/C Ratio: 0.45

3. Slump Limit: 5 inches plus or minus 1 inch

4. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery for 3/4-inch nominal maximum aggregate size.

2.6 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to

ASTM C 94/C 94M, and furnish batch ticket information.

1. When air temperature is between 85 and 90 deg F, reduce mixing and delivery time from

1-1/2 hours to 75 minutes; when air temperature is above 90 deg F, reduce mixing and delivery time to 60 minutes.

B. Project-Site Mixing: Measure, batch, and mix concrete materials and concrete according to

ASTM C 94/C 94M. Mix concrete materials in appropriate drum-type batch machine mixer.

1. For mixer capacity of 1 cu. yd. or smaller, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is released.

2. For mixer capacity larger than 1 cu. yd., increase mixing time by 15 seconds for each additional 1 cu. yd.

3. Provide batch ticket for each batch discharged and used in the Work, indicating Project identification name and number, date, mixture type, mixture time, quantity, and amount of water added. Record approximate location of final deposit in structure.

PART 3 - EXECUTION

3.1 EMBEDDED ITEM INSTALLATION

A. Place and secure anchorage devices and other embedded items required for adjoining work that is attached to or supported by cast-in-place concrete. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

1. Install anchor rods, accurately located, to elevations required and complying with tolerances in Section 7.5 of AISC 303.

033000 - 5

2. Install reglets to receive waterproofing and to receive through-wall flashings in outer face of concrete frame at exterior walls, where flashing is shown at lintels, shelf angles, and other conditions.

3. Install dovetail anchor slots in concrete structures as indicated.

3.2 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections are completed.

B. Do not add water to concrete during delivery, at Project site, or during placement unless approved by Contracting Officer.

C. Before test sampling and placing concrete, water may be added at Project site, subject to limitations of ACI 301.

1. Do not add water to concrete after adding high-range water-reducing admixtures to mixture.

D. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete is placed on concrete that has hardened enough to cause seams or planes of weakness.

If a section cannot be placed continuously, provide construction joints as indicated. Deposit concrete to avoid segregation.

1. Deposit concrete in horizontal layers of depth not to exceed formwork design pressures and in a manner to avoid inclined construction joints.

2. Consolidate placed concrete with mechanical vibrating equipment according to ACI 301.

3. Do not use vibrators to transport concrete inside forms. Insert and withdraw vibrators vertically at uniformly spaced locations to rapidly penetrate placed layer and at least 6 inches into preceding layer. Do not insert vibrators into lower layers of concrete that have begun to lose plasticity. At each insertion, limit duration of vibration to time necessary to consolidate concrete and complete embedment of reinforcement and other embedded items without causing mixture constituents to segregate.

3.3 CONCRETE PROTECTING AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold-weather protection and ACI 301 (ACI 301M) for hot-weather protection during curing.

B. Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h (1 kg/sq. m x h) before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing.

C. Unformed Surfaces: Begin curing immediately after finishing concrete. Cure unformed surfaces, including floors and slabs, concrete floor toppings, and other surfaces.

033000 - 6

D. Cure concrete according to ACI 308.1, by one or a combination of the following methods:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven days with the following materials:

a. Water.

b. Continuous water-fog spray.

c. Absorptive cover, water saturated, and kept continuously wet. Cover concrete surfaces and edges with 12-inch lap over adjacent absorptive covers.

2. Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover for curing concrete, placed in widest practicable width, with sides and ends lapped at least 12 inches, and sealed by waterproof tape or adhesive. Cure for not less than seven days. Immediately repair any holes or tears during curing period, using cover material and waterproof tape.

3. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall within three hours after initial application. Maintain continuity of coating and repair damage during curing period.

3.4 CONCRETE SURFACE REPAIRS

A. Defective Concrete: Repair and patch defective areas when approved by Contracting Officer.

Remove and replace concrete that cannot be repaired and patched to Contracting Officers approval.

B. Patching Mortar: Mix dry-pack patching mortar, consisting of 1 part portland cement to 2-1/2 parts fine aggregate passing a No. 16 sieve, using only enough water for handling and placing.

C. Repairing Unformed Surfaces: Test unformed surfaces, such as floors and slabs, for finish and verify surface tolerances specified for each surface. Correct low and high areas. Test surfaces sloped to drain for trueness of slope and smoothness; use a sloped template.

1. Repair finished surfaces containing defects. Surface defects include spalls, popouts, honeycombs, rock pockets, crazing and cracks in excess of 0.01 inch wide or that penetrate to reinforcement or completely through unreinforced sections regardless of width, and other objectionable conditions.

2. After concrete has cured at least 14 days, correct high areas by grinding.

3. Correct localized low areas during or immediately after completing surface finishing operations by cutting out low areas and replacing with patching mortar. Finish repaired areas to blend into adjacent concrete.

3.5 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified testing and inspecting agency to perform tests and inspections and to submit reports.

033000 - 7

B. Inspections:

1. Verification of use of required design mixture.

2. Concrete placement, including conveying and depositing.

3. Curing procedures and maintenance of curing temperature.

C. Concrete Tests: Testing of composite samples of fresh concrete obtained according to

ASTM C 172/C 172M shall be performed according to the following requirements:

1. Testing Frequency: Obtain at least one composite sample for each 100 cu. yd. or fraction thereof of each concrete mixture placed each day.

a. When frequency of testing provides fewer than five compressive-strength tests for each concrete mixture, testing shall be conducted from at least five randomly selected batches or from each batch if fewer than five are used.

2. Slump: ASTM C 143/C 143M; one test at point of placement for each composite sample, but not less than one test for each day's pour of each concrete mixture. Perform additional tests when concrete consistency appears to change.

3. Air Content: ASTM C 231/C 231M, pressure method, for normal-weight concrete; one test for each composite sample, but not less than one test for each day's pour of each concrete mixture.

4. Concrete Temperature: ASTM C 1064/C 1064M; one test hourly when air temperature is

40 deg F and below or 80 deg F and above, and one test for each composite sample.

5. Compression Test Specimens: ASTM C 31/C 31M.

a. Cast and laboratory cure two sets of two standard cylinder specimens for each composite sample.

b. Cast and field cure 2 sets of two standard cylinder specimens for each composite sample.

6. Compressive-Strength Tests: ASTM C 39/C 39M; test one set of two laboratory-cured specimens at 7 days and one set of two specimens at 28 days.

a. Test one set of two field-cured specimens at 7 days and one set of two specimens at 28 days.

b. A compressive-strength test shall be the average compressive strength from a set of two specimens obtained from same composite sample and tested at age indicated.

7. When strength of field-cured cylinders is less than 85 percent of companion laboratory-cured cylinders, Contractor shall evaluate operations and provide corrective procedures for protecting and curing in-place concrete.

8. Strength of each concrete mixture will be satisfactory if every average of any three consecutive compressive-strength tests equals or exceeds specified compressive strength and no compressive-strength test value falls below specified compressive strength by more than 500 psi.

9. Test results shall be reported in writing to Contracting Officer, concrete manufacturer, and Contractor within 48 hours of testing. Reports of compressive-strength tests shall contain Project identification name and number, date of concrete placement, name of concrete testing and inspecting agency, location of concrete batch in Work, design

033000 - 8 compressive strength at 28 days, concrete mixture proportions and materials, compressive breaking strength, and type of break for both 7- and 28-day tests.

10. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be permitted by Contracting Officer but will not be used as sole basis for approval or rejection of concrete.

11. Additional Tests: Testing and inspecting agency shall make additional tests of concrete when test results indicate that slump, air entrainment, compressive strengths, or other requirements have not been met, as directed by Contracting Officer. Testing and inspecting agency may conduct tests to determine adequacy of concrete by cored cylinders complying with ASTM C 42/C 42M or by other methods as directed by

Contracting Officer.

12. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements.

13. Correct deficiencies in the Work that test reports and inspections indicate do not comply with the Contract Documents.

PART 4 - MEASUREMENT AND PAYMENT

4.1 METHOD AND MEASUREMENT

A. Units: There will be separate measurement for individual items of work done under this

Contract.

4.2

BASIS OF PAYMENT

Pay Item

Pay Unit

033000 (01) Cast-In-Place Concrete Lump Sum

END OF SECTION 033000

PRE-ENGINEERED SHELTERS

130470-1

SECTION 130470 – PRE-ENGINEERED SHELTERS

1.1 SUMMARY

A. The work of this section consists of providing and installing a pre-engineered gable roof rectangular shelter. The intent of this specification section is to establish a quality and performance level for structural design, material, durability and workmanship. The shelters covered by this specification shall be as shown in the drawings. The Contractor may propose alternate designs with changes to minor features and/or dimensions. Alternate design proposals shall be subject to the approval of the Contracting Officer.

1.2 SYSTEM DESCRIPTION

A. Design Requirements: The basic design loads shall include snow, wind, and seismic in addition to dead load.

B. Site Specific Loads – shall be for location as shown on drawings.

1. All loads shall be in addition to the applicable dead loads.

C. Combination of Loads: Shall be according to the most current International Building Code edition.

1.3 SUBMITTALS

A. As specified in Section 010000, General Requirements.

B. Manufacturer's Literature: Submit manufacturer's descriptive data for materials and items to be used on this project, including installation instructions.

C. Shop Drawings: Submit shop and erection drawings for the pre-engineered shelters to be used on this project. Drawings shall be prepared by and bear the stamp of a professional engineer registered in the state of Idaho. Shop drawings shall show complete detailing of all members, indicate scope of work, size of reinforcing, and gauges of all materials. A bill of materials shall be furnished with the shop drawings. Drawings shall be same scale as the full-size Contract drawings.

D. The foundation designs shall be prepared by and bear the stamp of a professional engineer registered in the state of Idaho. The foundation designs shall be based on dead, live, wind, and seismic loads provided by the shelter manufacturer, and shall be designed according to the most current International Building Code edition.

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E. Certificates of Conformance: Submit written certification from the supplier of the Contractor-furnished pre-engineered shelters to be used on this project that they conform to the requirements of this specification section.

F. Samples: Submit a sample of the roofing material for the shelters to be used on this project.

Submit color samples for all framing and roofing from the manufacturer’s standard colors.

1.4 QUALITY ASSURANCE

A. Manufacturer's Qualifications: The shelters shall be the designs of a manufacturer with at least five years experience in the fabrication of pre-engineered shelter structures.

B. Roof Construction Certification Requirements: The roof construction of the shelters shall be in accordance with UL 580 and carry an Underwriters' Laboratories Construction (Uplift) classification of not less than Class 30.

C. Failure Criteria: Not limited to the following.

1. Structural failure of any member or connection.

2. Rusting of any member.

3. Movement of members sufficient to open joints of roofing or panels.

4. Roof uplift due to wind for one year after project completion.

5. Loosening of roof panels.

6. Settling of any column so that the elevation difference of the base of that column is more than a 1.5” difference relative to the elevations of any of the other three column bases of that shelter.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Delivery: All materials shall be completely fabricated and prepared for shipment, including any necessary crating or bundling. Scratched or damaged members will be subject to inspection to determine acceptability. Scratched finish must be sanded smooth and touched-up immediately with a clear penetrating sealer provided by the manufacturer. Damaged members may be required to be replaced at Contractor's expense. Retain sheets in roofer’s original packaging until installation. Crimping of any portion of these sheets will be a basis for rejection. Store under cover in a location remote from construction operations.

B. Storage: Store in an area protected from the weather until ready for erection. Use non-marring slings when handling.

1.6 SEQUENCING AND SCHEDULING

A. Installation Conditions: Shelter foundations shall be cast-in-place in accordance with Section

033000 – CAST-IN-PLACE CONCRETE for Structures and as designed by the licensed engineer. Roof construction of shelters should be completed as drawn and specified prior to installation of metal roofing.

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1.7 WARRANTY

A. Roof Requirements: Furnish a written warranty from the manufacturer certifying the metal roofing for a period of at least 20 years against any manufacturing defects that will adversely affect the performance of the roof and that the metal roof shall resist damage by wind, including gusts, up to 90 miles per hour.

2.1 MATERIALS

A. Pre-Engineered Shelters: Prefabricated steel structure, Model REK 20x34 with 13 foot eave for the individual shelter as manufactured by Poligon, 4240 136th Ave Holland, MI 49424

Phone 616.888.3500, or approved equal, with the following salient features.

1. Structural framing: Structural steel tube minimum ASTM A500 grade B or cold-formed box sections minimum ASTM A570b grade 55. “I” beams, tapered columns, open channels, or wood products shall not be accepted.

2. Fasteners: ASTM A325 high strength bolts and A563 high strength nuts, ASTM A36 anchor bolts, self-drilling screws, rivets.

3. Metal roofing: 24-gauge galvalume factory finished with Kynar 500 paint system.

Standing seam panels shall be 12 to 16 inch wide. Seams shall run with the pitch of the roof for proper drainage. Color shall be selected from manufacturer’s standard color options to match existing cabana structures at the site, as approved by the

Contracting Officer.

4. Metal roofing trim shall match the color of the roof and shall be formed from 24 gauge painted galvalume steel as follows.

a. Panel end caps shall be pre-bent to a “U” shape to fit over ridge end of roof panels.

The inside of the “U” shall match the roof color.

b. Metal ridge caps shall be preformed with a single central bend to match the roof pitch. They shall be hemmed on the sides.

c. Roof peak cap shall be supplied on all structures that do not include a cupola.

d. “J” channel shall be shaped like a “J” with colored metal on the outside wrapped around 20 gauge galvanized steel core. “J” channel shall be applied all along the eave to strength and straighten the eave. Both colored metal and galvanized core shall have 7/16” weep holes 6” on center.

e. Eave splice channels shall be provided to fit behind “J” channel butt joints to create strength at the joint and maintain a straight eave line.

f. Special “J” channel corner trim shall be provided which fits over the main “J” channel to simplify final detailing of corners.

2.2 FABRICATION

A. All base plates, stiffener plates, U-clips, and end plates shall be factory welded into place and bolt connection holes shall be factory cut.

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B. Welded connections shall be made by certified welders in accordance with AWS Specifications and be supervised by an AWS certified welding inspector.

C. Factory Frame Finish for Shelters: “E” coated and powder coated per the following procedure:

The steel shall be shot blasted to near white condition, then subjected to an 8 stage Zinc Phosphate cleaning process followed by a Cationic Epoxy Electro coat applied with 0.7-1.0 mil thickness.

A finish coating of TGIC polyester powder coat shall then be applied, 3-5 mils in thickness, and a clear topcoat of UV resistant Super Durable Polyester TGIC shall be added for a total film thickness of 3-5 mils. Cured to accomplish heat fusion. The color shall be selected from manufacturer’s standard color options, as approved by the Contracting Officer.

3.1 ERECTION

A. Installation: Erection of shelters shall be per manufacturer’s installation instructions.

B. Clean steel and touch up scratches and chips in powder coat finish using touch up paint provided by manufacturer.

PART 4 - EXECUTION

4.1 METHODS OF MEASUREMENT

A. Method: The quantity to be paid for will be the number of pre-engineered metal shelters to be furnished and installed.

A. General: The accepted quantities, determined as provided above, will be paid for at the contract unit price per unit of measurement for the pay items listed below that are shown in the bid schedule, which price and payment will be full compensation for furnishing and placing all materials, including all labor, equipment, tools, and incidentals necessary to complete the work prescribed in this section. Payment will be made under:

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END OF SECTION 130470

Pre-Engineered Shelter

Lump Sum

EARTH MOVING

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SECTION 312000 - EARTH MOVING

1.1 SUMMARY

A. Section Includes:

1. Preparing subgrades for slabs-on-grade.

2. Base course for concrete slabs-on-grade.

1.2 DEFINITIONS

A. Backfill: Soil material used to fill an excavation.

B. Base Course: Aggregate layer placed between the subgrade and concrete slab-on-grade.

C. Borrow Soil: Satisfactory soil imported from off-site for use as fill or backfill.

D. Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated.

E. Fill: Soil materials used to raise existing grades.

F. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface.

G. Subgrade: Uppermost surface of an excavation or the top surface of a fill or backfill immediately below subbase, drainage fill, drainage course, or topsoil materials.

H. Utilities: On-site underground pipes, conduits, ducts, and cables as well as underground services within buildings.

1.3 SUBMITTALS

A. Product Data for each type of soil material.

1.4 FIELD CONDITIONS

A. Utility Locator Service: Notify utility locator service for area where Project is located before beginning earth-moving operations.

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2.1 SOIL MATERIALS

A. General: Provide borrow soil materials when sufficient satisfactory soil materials are not available from excavations.

B. Satisfactory Soils: Soil Classification Groups GW, GP, GM, SW, SP, and SM according to

ASTM D2487, or a combination of these groups; free of rock or gravel larger than 3 inches in any dimension, debris, waste, frozen materials, vegetation, and other deleterious matter.

C. Unsatisfactory Soils: Soil Classification Groups GC, SC, CL, ML, OL, CH, MH, OH, and PT according to ASTM D2487, or a combination of these groups.

1. Unsatisfactory soils also include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction.

D. Base Course: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ISPWC Section 802; with at least 90 percent passing a 3/4-inch sieve and not more than 9 percent passing a No. 200 sieve.

E. Engineered Fill: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ISPWC 801; with at least 100 percent passing a 3-inch sieve and not more than 12 percent passing a No. 200 sieve.

3.1 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earth-moving operations.

B. Protect and maintain erosion and sedimentation controls during earth-moving operations.

C. Protect subgrades and foundation soils from freezing temperatures and frost. Remove temporary protection before placing subsequent materials.

3.2 EXPLOSIVES

A. Explosives: Do not use explosives.

3.3 EXCAVATION, GENERAL

A. Unclassified Excavation: Excavate to subgrade elevations regardless of the character of surface and subsurface conditions encountered. Unclassified excavated materials may include rock, soil

312000-3 materials, and obstructions. No changes in the Contract Sum or the Contract Time will be authorized for rock excavation or removal of obstructions.

1. If excavated materials intended for fill and backfill include unsatisfactory soil materials and rock, replace with satisfactory soil materials.

3.4 EXCAVATION FOR STRUCTURES

A. Excavate to indicated elevations and dimensions within a tolerance of plus or minus 1 inch. If applicable, extend excavations a sufficient distance from structures for placing and removing concrete formwork, for installing services and other construction, and for inspections.

1. Excavations for Footings: Do not disturb bottom of excavation. Excavate by hand to final grade just before placing concrete reinforcement. Trim bottoms to required lines and grades to leave solid base to receive other work.

3.5 EXCAVATION FOR SLABS-ON-GRADE

A. Excavate surfaces under slabs-on-grade to indicated lines, cross sections, elevations, and subgrades.

3.6 SUBGRADE INSPECTION

A. Notify Contracting Officer when excavations have reached required subgrade.

B. If Contracting Officer determines that unsatisfactory soil is present, continue excavation and replace with compacted backfill or fill material as directed.

C. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Contracting Officer, without additional compensation.

3.7 STORAGE OF SOIL MATERIALS

A. Stockpile borrow soil materials and excavated satisfactory soil materials without intermixing.

Place, grade, and shape stockpiles to drain surface water. Cover to prevent windblown dust.

3.8 SOIL FILL

A. Place and compact fill material in layers to required elevations as follows:

1. Under slabs, use satisfactory soil material.

2. Under footings, use engineered fill.

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3.9 SOIL MOISTURE CONTROL

A. Uniformly moisten or aerate subgrade and each subsequent fill or backfill soil layer before compaction to within 2 percent of optimum moisture content.

1. Do not place backfill or fill soil material on surfaces that are muddy, frozen, or contain frost or ice.

2. Remove and replace, or scarify and air dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight.

3.10 COMPACTION OF SOIL BACKFILLS AND FILLS

A. Place backfill and fill soil materials in layers not more than 8 inches in loose depth for material compacted by heavy compaction equipment and not more than 4 inches in loose depth for material compacted by hand-operated tampers.

B. Place backfill and fill soil materials evenly on all sides of structures and slabs to required elevations and uniformly along the full length of each structure and slab.

C. Compact soil materials to not less than the following percentages of maximum dry unit weight according to ASTM D698:

1. Under structures and slabs, scarify and recompact top 6 inches of existing subgrade and each layer of backfill or fill soil material at 95 percent.

3.11 GRADING

A. General: Uniformly grade areas to a smooth surface, free of irregular surface changes. Comply with compaction requirements and grade to cross sections, lines, and elevations indicated.

B. Site Rough Grading: Slope grades to direct water away from structures and to prevent ponding.

Finish subgrades to elevations required to achieve indicated finish elevations, within the following subgrade tolerances:

1. Slabs: Plus or minus 1 inch.

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