PS73SPECS_rev_7-25-16 _rev_8-3-16.doc

AG-32SD-S-16-0020, Rev 7-25-16, Rev. 8-3-16 Provide and install pole barn, Clay Center, NE

TABLE OF CONTENTS

DIVISION 1- GENERAL REQUIREMENTS

0101 - SUMMARY OF WORK

0130 - SHOP DRAWINGS

0160 - USE OF GOVERNMENT FACILITIES (UTILITIES, ETC.)

0180 - CLEANUP

DIVISION 2 – EQUIPMENT

0220 – EXCAVATION, BACKFILL, & GRADING

DIVISION 3 – CONCRETE

0330 – CONCRETE

DIVISION 7 – THERMAL & MOISTURE PROTECTION

0790 – JOINT SEALERS

DIVISION 8 – DOORS & WINDOWS

0810 – HOLLOW METAL DOORS

0830 – SECTIONAL OVERHEAD DOORS

0830 – FINISH HARDWARE

DIVISION 9 – FINISHES

0990 – PAINTING

DIVISION 13 – SPECIAL CONSTRUCTION

1360 – METAL BUILDING

DIVISION 15 – MECHANICAL

1580 – VENTILATION

DIVISION 16 – ELECTRICAL

1605 – ELECTRICAL SYSTEMS

1660 – LIGHTNING PROTECTION SYSTEM

DIVISION 1

SECTION 0101

SUMMARY OF WORK

The work consists of providing all labor, material, tools, and equipment to build a pre-engineered metal building as shown on the drawings and as described herein. The work shall include but shall not be limited to the following:

1. Construction of a nominal 60’ x 168’ pre-engineered metal building with all the concrete foundation system.

2. Installation of 3 overhead doors with electric operators and 3 manual overhead doors.

3. Installation of 2 walk doors and 1 window.

4. Installation of vent openings in the south wall.

5. Installation of flat concrete underneath the overhead doors.

6. Installation of electrical system as indicated.(Option #1)

6. Installation of wall, roof, and overhead door insulation (Option #2)

7. Installation of a lightning protection system (Option #3).

0101-1

SECTION 0130

SHOP DRAWINGS

1. Submit shop drawings to the Contracting Officer’s Representative (COR) for approval prior to installation. Information in the form of drawings, product literature, manufacturer’s specification, equipment lists, etc. shall be submitted on the following:

Specification

Description Drawings Literature Schedule

a. Concrete reinforcing x x x

b. Metal Building x

c. Paint x x

d. Concrete Mix x

e. Doors-Walk and Overhead x

f. Light Fixtures x

g. Louvers x

h. Breakers, Disconnect, & other x

Items under Sec. 16

j. All items mentioned in x

Divisions 15 and 16

1.

The Contracting Officer may request submittals in addition to those listed when deemed necessary to adequately describe the work covered in the respective sections.

2. Each submittal shall be complete and in sufficient detail for ready determination of compliance with the contract requirements.

Submittal shall be submitted in four (4) copies to the COR using the transmittal form. The form shall be properly completed by filling out all the heading block spaces and identifying each item submitted. Special care should be exercised to insure proper listing of the specification paragraph and/or sheet number of the contract drawings pertinent to the data submitted for each item. A separate transmittal form shall be attached to each copy of the data being submitted.

4. Brand Name: Identification of items in the contract documents is intended to be descriptive, not restrictive, and is to indicate the quality and characteristics of products that will be satisfactory.

0130-1

SECTION 0160

USE OF GOVERNMENT FACILITIES (UTILITIES, ETC.)

1. Water, Gas, Electricity:

a. As mutually agreed upon between the Contractor and the COR, the Contractor may use nearby utilities required for his performance under this contract.

b. Contractor shall bear the cost of temporary connections (if necessary) and restoration upon conclusion of use.

c. The Government shall bear the cost of reasonable utility consumption. Government will not pay the cost of utilities if usage is abused.

d. The Contractor shall submit for approval written notification not less than 4 working days in advance of requirement to shut down any utilities or other services to or within existing building or facilities used by others.

2. Telephone:

a. Contractor shall arrange and pay for any telephone service they choose to provide for themselves.

3. Toilet:

a. Contractor shall provide their own toilet facilities with location approved by the Contracting Officer’s Representative (COR).

4. Access to Buildings:

a. Contractor’s access to buildings shall be limited to those areas where work is being performed.

5. Safety

a. All applicable national, state, and local safety regulations shall be followed.

6. Material Receiving:

a. Contractor shall be on-site to receive materials. Contractor shall arrange for own storage of materials unless other arrangements have been agreed to by owner.

0160-1

7. Security:

a. All contract personnel shall complete a visitor information sheet and shall be issued a contractor badge that shall be worn at all times while on-site.

b. Work hours shall be Monday through Friday, 8:00 AM to 4:30 PM, except for Holidays. Contractors shall be off the premises by 4:30 PM.

0160-2

SECTION 0180

CLEANUP

1. Cleanup:

a. The Contractor shall keep the premises clean during construction and shall remove all rejected material, rubbish, etc., after completion of work and prior to final inspection.

b. Materials removed by the Contractor shall become the property of the contractor and shall be removed from the site unless otherwise agreed to by the owner.

c. Government dumpsters shall not be used by the contractor.

* End of Section

SECTION 0220

EXCAVATION, BACKFILL, AND GRADING

1. General:

a. Major stripping, filling, compaction and grading of building site shall be done by the Government prior to construction.

2. Excavation:

a. Excavation for foundation footings may be excavated to dimensions of the concrete work, if the nature of the soil will permit. Excavation below grade shall be backfilled with concrete, at no expense to the Government.

b. Excess soil shall be transported to a site within 1 mile of the site as directed by the Contracting Officer’s Representative (COR).

c. Excavations shall be kept free of water at all times. Diversion ditches or dewatering systems shall be provided to maintain a dry condition below the level of all excavations.

d. Adjacent buildings, pavements, utilities and grades shall be protected during excavation work.

e. Utility lines existing or constructed during excavation and backfilling, if damaged, shall be repaired at the Contractor’s expense. It is the contractor’s responsibility to located all underground utilities.

3. Backfilling:

a. Backfilling shall commence after permanent installations are approved by the COR. Excavations shall be free of forms and debris. Backfill shall be of material as described below and shall not be placed on muddy or frozen areas.

b. Backfill material below grade shall be clay except as indicated on the drawings. It may be taken from the Government borrow pit (at no charge to the contractor).

c. Backfill material shall be uniformly spread in horizontal layers of not more than 6 inches deep before compaction. Each layer shall be compacted to the percent of maximum density obtained at optimum moisture content as determined by the current issue of A.S.T.M. D1557, method D. Backfill shall be compacted to not less than 95 percent standard proctor density.

0220-1

4. Compaction:

a. Fill and backfill shall be compacted by power operated mechanical equipment. Compaction requirements shall be as specified under “Backfilling”.

b. Power operated mechanical equipment for spreading and compacting backfill shall not be operated closer to foundation walls than a distance equal to the height of backfill above the top of footing. Areas shall be compacted by power driven hand operated equipment where other equipment cannot be operated.

5. Grading:

a. Grades shall be uniform levels or slopes between elevation points or between elevation points and existing finish grades.

b. Material shall be placed in evenly distributed layers over the entire area. Layers shall be spread and compacted in lifts of 8 inches or less.

0220-2

* End of Section

SECTION 0330

CONCRETE WORK

1. Scope:

a. Concrete work shall include all slab concrete and other concrete items indicated or as obviously intended to be concrete as necessary to complete the project.

b. Submittals:

1. Submit data for proprietary materials and items, including admixtures, patching compounds, curing compounds, and others as requested by the C.O.R.

2. Reinforcement: Submit shop drawings for fabrication, bending, and placement of concrete reinforcement. Comply with ACI 315 “Manual of Standard Practice for Detailing Reinforced Concrete Structures”.

3. Submit laboratory test reports for concrete materials and mix design test.

4. Provide material certificates in lieu of materials laboratory test reports when permitted by C.O.R. Materials certificates shall be signed by manufacturer and Contractor, certifying that each material item complies with, or exceeds, specified requirements. Provide certification from admixture manufacturers that chloride content complies with specification requirements.

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

1. ACI 301 “Specifications for Structural Concrete for Buildings”.

2. ACI 318 “Building Code Requirements for Reinforced Concrete”.

3. Concrete Reinforcing Steel Institute, “Manual of Standard Practice”.

2. Concrete Materials:

a. Portland cement shall be ASTM CISO, Type I. Use one brand of cement through project.

b. Water: Drinkable.

0330-1

c. Air-Entraining Admixture: ASTM C 260, certified by manufacturer to be compatible with other required admixtures.

d. Water Reducing Admixtures: ASTM C 494, Type A, and containing not more than 0.1 percent chloride ions.

e. Water-Reducing, Non-Chloride Accelerator Admixture: ASTM C494, type E, and containing not more than 0.1 percent chloride ions.

f. Prohibited Admixtures: Calcium chloride thyocyanates or admixtures containing more than 0.1 percent chloride ions are not permitted.

g. Granular base shall be evenly graded mixture of fine and coarse aggregates to provide, when compacted, a smooth and even surface below slabs on grade.

h. Absorptive Cover: Burlap cloth made from jute or kenaf, weighing approximately 9 oz. Per yd., complying with ASSHTO M 182, Class 2.

i. Moisture-Retaining Cover: One of the following, complying with ASTM C 171.

Waterproof paper.

Polyethylene film.

Polyethylene-coated burlap.

j. Liquid Membrane-Forming Curing Compound: Liquid type membrane- forming curing compound complying with ASTM C 309, Type I, Class A. Moisture loss not more than .055 gr./sq. cm. when applied at 200 sq. ft./gal.

3. 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 C.O.R. for preparing and reporting proposed mix designs.

b. Submit written reports to C.O.R. of each proposed mix for each class of concrete at least 15 days prior to start of work. Do not begin concrete production until mixed have been reviewed by C.O.R.

c. Proportions of aggregate to cement and water shall be such as to produce a concrete which will work readily into corners, angles or forms and around reinforcement and without permitting material to segregate or excess water to collect on the surface. Comply with requirements of ASTM C 94 and as herein specified for ready mix concrete.

0330-2 d.

The combined aggregates shall be such that when separated on the No. 4 standard sieve, the weight passing the sieve, for fins aggregate, shall not be less than 44% nor greater than 88% of the total.

Strength Allowable water Portland Cement per sack of cement per cubic yd. of concrete

3,000 lbs. 6-1/2 Gals 6.0 sacks

(94 lbs., per sack)

e. Slump Limits: Proportion and design mixes to result in concrete slump at point of placement as follows:

Ramps, slabs, and sloping surfaces: Not more than 3”.

Reinforced foundation systems: Not less than 1” and not more than 3”.

Other concrete: Not less than 1” or more than 4”.

4. Admixtures:

a. 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 with a tolerance of plus-or-minus 1-1/2 percent within following limits.

1. Concrete structures and slabs exposed to freezing and thawing, deicer chemicals, or subjected to hydraulic pressure: 6.0 percent (severe exposure) 1” maximum aggregate.

2. Other concrete (including all interior concrete) (not exposed to freezing, thawing, or hydraulic pressure)” 2 percent to 4 percent air.

5. Mixing:

a. On-the-job mixed concrete shall be mixed in a revolving drum-type mixer. Concrete shall be mixed not less than 1-1/2 minutes after all materials, including water are in the mixer.

b. No caked or lumpy materials or partially set or retempered concrete shall be used.

c. Concrete shall be placed immediately after mixing, in such a manner as will prevent segregation of the aggregates or a displacement reinforcing. It shall be deposited as nearly as practicable in its final position to avoid rehandling.

0330-3

d. As far as practicable, concrete shall be placed in each section of the work in a continuous operation so as to avoid construction joints.

e. Cement shall be stored at the site in such a manner that it will not absorb moisture from the ground and shall be covered so as to be completely protected from the elements. Cement which hardens or partially sets shall not be used.

6. Forms:

a. Forms shall be provided for all concrete work with exposed vertical surfaces.

b. Form Materials:

1. Forms for Unexposed Finish Concrete: Plywood, lumber, metal, or other acceptable material. Provide lumber dressed on at least 2 edges and one side for tight fit.

2. Forms for Exposed Finish Concrete: Plywood, metal, metal-framed plywood faced, or other acceptable panel-type materials, to provide continuous, straight, smooth, exposed surfaces. Furnish in largest practicable sizes to minimize number of joints and to conform to joint system shown on drawings.

a. Use overlaid plywood complying with U.S. Product Standard PS-1 “A-C or B-B High Density Overlaid Concrete Form”, Class I.

3. Form Coatings: Provide commercial formulation form-coating compounds that will not bond with, stain, nor adversely affect concrete surfaces, and will not impair subsequent treatments of concrete surfaces.

c. Forms shall be built true to line, and shall be mortar-tight and sufficiently rigid to prevent displacement or bulging between supports. All forms for concrete walls which will be exposed shall be of sound plywood or fiberboard closely fitted to give best surface possible without special lining. Joints shall be minimized as much as possible. Other forms may be of sound lumber, free from loose knots.

d. All forms not oiled shall be wet down immediately before concrete is poured.

e. All anchors, ties, inserts, drains, etc., required in connection with other work shall be placed accurately and built into the forms.

f. All form work shall be cleaned before placing concrete.

0330-4

g. Screeds shall be provided until concrete has attained sufficient strength on the judgement of the COR, to support its own weight plus construction live loads.

7. Reinforcement:

a. Reinforcing Materials:

1. Reinforcing Bars (Rebar): ANSI/ASTM A 615, Grade 40, deformed.

2. Steel Wire: ANSI/ASTM A 82, plain, cold-drawn, steel.

3. Welded Wire Fabric (WWF): ANSI/ASTM A 185, welded steel wire fabric.

b. Supports for Reinforcement:

1. Provide supports for reinforcement including bolsters, chairs, spacers, and other devices for spacing, supporting and fastening reinforcing bars and welded wire fabric in place. Use wire bar type supports complying with CRSI recommendations, unless otherwise acceptable.

a. For slabs-on-grade, use supports with sand plates or horizontal runners where base material will not support chair legs.

b. For exposed-to-view concrete surfaces, where legs of supports are in contact with forms, provide supports with legs which are plastic protected (CRSI, Class I or stainless steel protected (CRSI, Class 2).

c. Placing Reinforcement:

1. Comply with concrete reinforcing steel institute’s recommended practice for “Placing Reinforcing Bars” which shows details and methods for reinforcement placement and supports. Additionally, comply with placing reinforcing as herein specified.

a. Accurately position, support, and secure reinforcement against displacement by formwork, construction, or concrete placement operation. Locate and support reinforcing by metal chairs, runners, bolsters, spacers, and hangers, as required.

b. Place reinforcement to obtain at least minimum coverage for concrete protection. 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.

0330-5

c. Install welded wire fabric in as long of lengths as practicable, aligned with building grid. Lap adjoining pieces at least one full mesh and lace splices with wire. Offset end laps in adjacent widths to prevent continuous laps in either direction.

1. Terminate wire fabric at each construction joint in slab on grade. Do not extend across joint.

2. Extend wire fabric across control joints, but cut out and remove alternate wires crossing control joints.

d. Reinforcing steel fabricated to shapes and dimensions shown on approved shop drawings, or required to carry out intent of drawings and specifications. Before being placed, reinforcement shall be thoroughly cleaned of rust, mill scale, coating, including ice, that would reduce or destroy the bond. Reinforcement reduced in section shall not be used. Following any substantial delay in the work, previously placed reinforcement left for future bonding shall be inspected and cleaned. Reinforcement shall not be bent or straightened in a manner injurious to the materials. Bars with kinks or bends not shown on drawings shall not be placed. Laps or splices shall be of adequate length to transmit stresses: Splices in adjacent bars shall be staggered.

e. Concrete covering reinforcing steel, where concrete surfaces, after removal of forms, are exposed to weather or ground except as otherwise shown on the drawings or specified shall conform to the following requirements:

Reinforcement Min Concrete Cover For bars more than 5/8 inch in dia. 2 inches

For bars 5/8 inch or less in dia. 1-1/2 inches

d. Shop Drawings:

1. Shop detail and placing drawings for all reinforcing steel shall be furnished for approval.

8. Joints:

a. Construction Joints: Locate and install construction joints as indicated or, if not indicated, locate so as not to impair strength and appearance of the structure as acceptable to C.O.R.

0330-6

b. Provide keyway at least 1-1/2” deep in construction joints in walls, slabs, and between walls and footings. Accepted bulkheads designed for this purpose may be used for slabs.

c. Isolation Joints in Slabs-on-Ground: Construct isolation joints in slabs-on-ground at points of contact between slabs-on-ground and vertical surfaces, such as column pedestals, foundation walls, grade beams, and elsewhere as indicated.

1. Joint filler and sealant materials are specified in Division-7 sections of these specifications.

d. Contraction (Control) Joints in Slabs-on-Ground: Construct contraction joints in slabs-on-ground to form panels of patterns as shown. Use inserts ¼” wide x ¼ of slab depth, unless otherwise indicated.

1. Form contraction joints by inserting premolded plastic, hardboard or fiberboard strip into fresh concrete until top surface of strip is flush with slab surface. Tool slab edges round on each side of insert. After concrete has cured, remove inserts and clean groove of loose debris.

2. If joint pattern not shown, provide joints not exceeding 15’-0” in either direction and located to conform to bay spacing wherever possible (at column centerlines, half bays, third-bays).

9. Concrete Placement:

a. Before placing concrete, inspect and complete formwork installation, reinforcing steel, and items to be embedded or cast-in. Notify other crafts to permit installation of their work and cooperate with other trades in setting such work. Moisten wood forms immediately before placing concrete where form coatings are not used. Formwork & reinforcing steel must be approved by the C.O.R. before placing concrete.

b. Comply with ASI 304: Recommended Practice for Measuring, Mixing, Transporting, and Placing Concrete”, and as herein specified.

c. 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 location to avoid segregation.

0330-7

d. Deposit concrete in forms in horizontal layers not deeper than 24” and in a manner to avoid inclined construction joints. Where placement consists of several layers, place each layer while preceding layer is still plastic to avoid cold joints.

e. Do not use vibrators to transport 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” into 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 impediment of reinforcement and other embedded items without causing segregation of mix.

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

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

h. Bring slab surfaces to correct level with straightedge and strike off. Use bull floats or darbies to smooth surface free of humps or hollows. Do not disturb slab surface prior to beginning finishing operations.

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

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

k. When air temperature has fallen to or is expected to fall below 40 deg F (4 deg C), uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 50 deg F (10 deg C), and not more than 89 deg F (27 deg C) at point of placement.

l. Do not use frozen materials or materials containing ice or snow. Do not place concrete on frozen sub grade or on sub grade containing frozen materials.

m. When not weather conditions exist that would seriously impair quality and strength of concrete, place concrete in compliance with ACI 305 and as herein specified.

0330-8

n. Cool ingredients before mixing to maintain concrete temperature at time of placement below 90 deg C (32 deg C). 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. Use of liquid nitrogen to cool concrete is contractor’s option.

o. Cover reinforcing steel with water-soaked burlap if it becomes too hot so that steel temperature will not exceed the ambient air temperature immediately before embodiment in concrete.

p. Fog spray forms, reinforcing steel, and sub grade just before concrete is placed.

q. Use water reducing retarding admixture (Type D) when required by high temperatures, low humidity, or other adverse placing conditions.

10. Finish of Formed Surfaces:

a. Provide as-cast concrete surface obtained with specified form facing material, arranged orderly and with a minimum of seams. Repair and patch defective areas; completely remove fins and other projections, leaving a smooth surface.

11. Monolithic Slab Finishes:

a. Apply float finish to monolithic slab surfaces to receive trowel finish and other finishes as herein after specified.

1. After screeding, consolidating, and leveling concrete slabs, do not work surface until ready for floating. Begin floating when surface water has disappeared or when concrete has stiffened sufficiently to permit operation of power-driven floats, or both. Consolidate surface with power-driven floats, or by hand-floating if area is small or inaccessible to power units. Check and level surface place to tolerances appropriate to achievement of specified trowel finish tolerances. Where float finish is to be final finish, or to receive non-slip finish, finish to tolerance ¼” in 10’ when tested with 10’ straightedge. Cut down high spots and fill low spots. Uniformly slope surfaces to drains. Immediately after leveling, refloat surface to a uniform, smooth, granular texture.

b. Apply trowel finish:

0330-9

1. After floating, begin first trowel finish operation using a power-driven trowel or hand trowel if area is small or inaccessible to power units. Begin final troweling when surface produces a ringing sound as trowel is moved over surface. Consolidate concrete surface by final hand troweling operation, free of trowel marks, uniform in texture and appearance, and with surface leveled to tolerances of ¼” in 10’ when tested with 10’ straightedge.

c. Apply broom finish:

1. Apply heavy broom finish to cattle areas and light broom finish on drive alley as shown on the drawings.

12. Concrete Curing & Protection:

a. Protect freshly placed concrete from premature drying and excessive cold or hot temperature.

b. Start initial curing as soon as free water has disappeared from concrete surface after placing and finishing. Keep continuously moist for not less than 7 days.

c. Begin final curing procedures immediately following initial curing and before concrete has dried. Continue final curing for at least 7 days in accordance with ACI 301 procedures. Avoid rapid drying at end of final curing period.

d. Curing methods shall be subject to indicated restrictions, perform curing of concrete by curing and sealing compound, by moist curing by moisture-retaining cover curing, , and by combinations thereof, as herein specified.

e. Provide moisture curing by following methods.

1. Keep concrete surface continuously wet by covering with water.

2. Continuos water-fog spray.

3. Covering concrete surface with specified absorptive cover, thoroughly saturating cover with water and keeping continuously wet. Place absorptive cover to provide coverage of concrete surfaces and edges, with 4” lap over adjacent absorptive covers.

f. Provide moisture-cover curing by following method:

0330-10

1. Cover concrete surfaces with moisture-retaining cover for curing concrete, placed in widest practicable width with sides and ends pegged at least 3” and sealed by waterproof tape or adhesive. Immediately repair any holes or tears during curing period using cover material and waterproof tape.

g. Provide curing and sealing compound by following method:

1. Apply curing and sealing compound to concrete slabs as soon as final finishing operations are complete (within 2 hours). Apply uniformly in continuous operation by power-spray or roller in accordance with manufacturer’s directions. Recoat area subjected to heavy rainfall within 3 hours after initial application. Maintain continuity of coating and repair damage during curing period.

h. Cure formed concrete surfaces by moist curing with forms in place for full curing period or until forms are removed. If forms are removed, continue curing by methods specified above, as applicable.

i. Cure slabs by application of appropriate curing method.

13. Removal of Forms:

a. Formwork not supporting weight of concrete, such as sides of beams, walls, columns, and similar parts of the work, may be removed after cumulatively curing at not less than 50 deg. F. for 24 hours after placing concrete, provided concrete is sufficiently hard to not be damaged by form removal operation, and provided curing and protection operation are maintained.

b. Clean and repair surfaces of forms to be re-used. Split, frayed, delaminated, or otherwise damaged form facing concrete will not be acceptable for exposed surfaces. Apply new form coating compound as specified for new formwork.

c. When forms are extended for successive concrete placement, thoroughly clean surfaces, remove fins and Latinate, and tighten forms to close joints. Align and secure joint to avoid offsets. Do not use “patched” forms for exposed concrete surfaces, except as acceptable to C.O.R.

14. Miscellaneous Concrete Items:

a. Fill-in holes and openings left in concrete structures for passage of work by other trades, unless otherwise shown or directed, after work of other trades is in place. Mix, place, and cure concrete as herein specified, to blend with in-place construction. Provide other miscellaneous concrete filling shown or required to complete work.

0330-11

b. Grout base plates and foundations as indicated, using non-shrink, non-metallic grout.

15. Concrete Surface Repairs:

a. Test unformed surfaces, such as monolithic slabs, for smoothness and verify surface plane to tolerances specified for each surface and finish. Correct low and high areas as herein specified. Test unformed surfaces sloped to drain for trueness of slope, in addition to smoothness using a template having required slope.

b. Repair finished unformed surfaces that contain defects which affect durability of concrete. Surface defects, as such, indulge crazing, cracks in excess of 0.01” wide or which penetrate to reinforcement or completely through non-reinforced sections regardless of width, spalling, pop outs, honeycomb, rack pockets, and other objectionable conditions.

c. Correct high areas in unformed surfaces by grinding, after concrete has cured at least 14 days.

d. Correct low areas in unformed surfaces during or immediately after completion of surface finishing operation, by cutting out low areas and replacing with fresh concrete. Finish repaired areas to blend into adjacent concrete. Proprietary patching compounds may be used when acceptable to Contracting Officer.

e. Exposed vertical surfaces shall have honeycomb, etc., patched, all projections removed and shall be smooth.

16. Testing:

a. Owner will have access to concrete for the purpose of employing a testing laboratory to perform material evaluation tests. Testing shall include the following information:

0330-12

Concrete Type Ticket No.

Class, psi Identification, laboratory

Mix No.

Identification, field

Coarse agg, lb Date cast

Fine agg, lb Date received at laboratory

Cement, lb Date tested

Total water, gal Days cured in field

Admixture, type Days cured in laboratory

Admixture, quantity Age of test, days

Cement factor, sk/yd3 Weight when received, lb

Water-cement ratio, gal./sk Length of specimen, in.

Slump, in.

Diameter of specimen, in.

Weight per cubic foot, lb Cross-sectional area, in.2

Air content, % Maximum load, lb

Temperature of concrete, F Type of fracture

Required strength, psi

b. Materials and installed work may require testing and retesting at any time during progress of work. Owner shall have free access to material stockpiles and facilities.

c. Concrete Test Specimens: During the progress of the work, compression tests specimens shall be made by owner and cured by the testing laboratory in accordance with ASTM C-31. Not less than three specimens (cylinders, 6” diameter x 12” long) shall be made for each 100 cubic yards of concrete or one day’s pour. Specimens shall be cured out of direct sunlight at jobsite or in the laboratory unless, in the opinion of the C.O.R., there is a possibility of the surrounding air temperature falling below 40 degrees F. In this case additional specimens shall be taken and cured entirely under jobsite conditions. One specimen shall be “broken” at 7 days and a second one “broken” at 28 days. The third specimen shall be

“broken”, if, and when, needed.

0330-13

* End of Section

SECTION 0790

JOINT SEALERS

1. General:

a. This section includes joint sealers for interior and exterior vertical and horizontal surfaces in masonry, metals, concrete, and other materials as indicated or as stated herein.

b. Provide joint sealers that have been produced and installed to establish and maintain watertight and airtight continuous seals.

2. Submittals:

a. Product data from manufacturers for each joint sealer product required, including instructions for joint preparation and joint sealer application.

b. Certificates from manufacturers of joint sealers attesting that their products comply with specification requirements and are suitable for the use indicated.

3. Quality Assurance:

a. Installer Qualifications: Engage an installer who has successfully completed within the last 3 years at least 3 joint sealer applications similar in type and size to that of this project.

b. Obtain joint sealer materials from a single manufacturer for each different product required.

4. Delivery, Storage, & Handling:

a. Deliver materials to project site in original unopened containers or bundles with labels informing about manufacturer, product name and designation, color, expiration period for use, pot life, curing time and mixing instructions for multi component materials.

b. Store and handle materials in compliance with manufacturers’ recommendations to prevent their deterioration or damage due to moisture, high or low temperature, contaminants, or other causes.

5. Project Conditions:

0790-1

a. Do not proceed with installation of joint sealers under the following conditions:

1. When ambient and substrate temperature conditions are outside the limits permitted by joint sealer manufacturer or below 40 deg F (4.4 deg C).

2. When joint substrates are wet due to rain, frost, condensation, or other causes.

b. Do not proceed with installation of joint sealers where joint widths are less than allowed by joint sealer manufacturer for application indicated.

c. Do not proceed with installation of joint sealers until contaminants capable of interfering with their adhesion are removed from joint substrates.

6. Products:

Provide joint sealers, joint fillers and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by sealant manufacturer based on testing and field experience. Provide color of exposed joint sealers indicated or, if not otherwise indicated, as selected by Contracting Officer from manufacturer’s standard colors.

a. Sealants:

1. Interior Sealant: ASTM C 834 Type S or M, Grade NS, Class 12.5, use NT. Where exposed, sealant color shall match color of adjacent surface.

2. Exterior Sealant: For joints in vertical surfaces, provide ASTM C 920, Type S or M, Grade NS, Class 25, use NT. For joints in horizontal surfaces, provide ASTM C 920, Type S or M, Grade P, Class 25, use T. Where exposed, sealant color shall match color of adjacent surfaces.

3. Manufacturer for interior and exterior sealant shall be Sonneborn, Dow

Corning, or equal. Sealants shall be one part, gun grade.

c. Joint Sealant Backing:

1. Provide sealant backings of material and type which are non staining, are compatible with joint substrates, sealants, primers and other joint fillers, and are approved for applications indicated by sealant manufacturer based on field experience and laboratory testing.

0790-2

2. Plastic Foam Joint Fillers: Preformed, compressible, resilient, non waxing, non extruding strips of flexible, non gassing plastic foam of material indicated below; nonabsorbent to water and gas; and of size, shape and density to control sealant depth and otherwise contribute to producing optimum sealant performance.

a. Either open-cell polyurethane foam or closed-cell polyethylene foam, unless otherwise indicated, subject to approval of sealant manufacturer, for cold-applied sealants only.

3. Bond-Breaker Tape: Polyethylene tape or other plastic tape as recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint filler materials or joint surfaces at back of joint where such adhesion would result in sealant failure. Provide self-adhesive tape where applicable.

d. Miscellaneous Materials:

1. Primers: Provide a non staining, quick-drying type with consistency recommended by the sealant manufacturer for the particular application.

2. Cleaners: Provide non staining, chemical cleaners of type which are acceptable to manufacturers of sealants and sealant backing materials, which are not harmful to substrates and adjacent nonporous materials, and which do not leave oily residues or otherwise have a detrimental effect on sealant adhesion or in-service performance.

3. Masking Tape: Provide non staining, nonabsorbent type masking tape compatible with joint sealants and surfaces adjacent to joints.

7. Execution:

Examine joints indicated to receive joint sealers, with installer present for compliance with requirements for joint configuration, installation, tolerances and other conditions affecting joint sealer performance. Do not proceed with installation of joint sealers until unsatisfactory conditions have been corrected.

a. Preparation:

1. Do not add liquids, solvents, or powders to the sealant. Mix multicomponent elastomeric sealants in accordance with manufacturer’s instructions. Clean out joints immediately before installing joint sealers to comply with recommendations of joint sealer manufacturers and the following requirements:

0790-3

a. Remove all foreign material from joint substrates which could interfere with adhesion of joint sealer, including dust; paints, except for permanent, protective coatings tested and approved for sealant adhesion and compatibility by sealant manufacturer, old joint sealers, oil, grease, waterproofing, water repellent, water, surface dirt, and frost.

b. Clean concrete, masonry, unglazed surfaces of ceramic tile and similar porous joint substrate surfaces, by brushing, grinding, blast cleaning, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing optimum bond with joint sealers. Remove loose particles remaining from above cleaning operations by vacuuming or blowing out joints with oil-free compressed air.

c. Remove laitance and release agents from concrete.

d. Clean metal, glass, porcelain enamel, glazed surfaces of ceramic tile; and other nonporous surfaces of ceramic tile; and other nonporous surfaces by chemical cleaners of other means which are not harmful to substrates or leave residues capable of interfering with adhesion of joint sealers.

2. Prime joint substrates where indicated or where recommended by joint sealer manufacturer based on pre construction joint sealer-substrate tests or prior experience. Apply primer to comply with joint sealer manufacturer’s recommendations. Confine primers to areas of joint sealer bond. Do not allow spillage or migration onto adjoining surfaces.

3. Use masking tape where required to prevent contact of sealant with adjoining surfaces which otherwise would be permanently stained or damaged by such contact or by cleaning methods required to remove sealant smears. Remove tape immediately after tooling without disturbing joint seal.

b. Installation of Joint Sealers:

1. Comply with joint sealer manufacturer’s printed installation instructions applicable to products and applications indicated, except where more stringent requirements apply.

2. Elastomeric Sealant Installation Standard shall comply with recommendations of ASTM C 962, for use of joint sealants as applicable to materials, applications and conditions indicated.

3. Installation of Sealant Backings: Install sealant backings to comply with the following requirements:

0790-4

a. Install joint fillers of type indicated to provide support of sealants during application and a position required to produce the cross-sectional shapes and depths of installed sealants relative to joint widths which allow optimum sealant movement capability.

b. Do not leave gaps between ends of joint fillers.

c. Do not stretch, twist, puncture, or tear joint fillers.

d. Remove absorbent joint fillers which have become wet prior to sealant application and replace with dry material.

4. Install bond breaker tape between sealants and joint fillers, compression seals, or back of joints where adhesion of sealant to surfaces at back of joints would result in sealant failure.

5. Install sealants by proven techniques that result in sealants directly contacting and fully wetting joint substrates, completely filling recesses provided for each joint configuration, and providing uniform, cross-sectional shapes and depths relative to joint widths which allow optimum sealant movement capability.

6. Immediately after sealant application and prior to time skinning or curing begins, tool sealants to form smooth, uniform beads of configuration indicated, to eliminate air pockets, and to ensure contact and adhesion of sealant with sides of joint. Remove excess sealants from surfaces adjacent to joint. Do not use tooling agents which discolor sealants or adjacent surfaces or are not approved by sealant manufacturer.

a. Provide concave joint configuration per Figure 6A in ASTM C 962, unless otherwise indicated.

c. Cleaning:

1. Clean off excess sealants or sealant smears adjacent to joints as work progresses by methods and with cleaning material approved by manufacturers of joint sealers and of products in which joints occur. On masonry and other porous surfaces, immediately scrape off fresh sealant that has been smeard on masonry and rub clean with a solvent as recommended by the sealant manufacturer. Allow excess sealant to cure for 24 hours then remove by wire brushing or sanding. On metal and other non-porous surfaces, remove excess sealant with a solvent-moistened cloth.

0790-5 Protection:

1. Protect joint sealers during and after curing period from contact with contaminating substances or from damage resulting from construction operations or other causes so that they are without deterioration or damage at time of substantial completion. If, despite such protection, damage or deterioration occurs, cut out and remove damaged or deteriorated joint sealers immediately and reseal joints with new materials to produce joint sealer installation with repaired areas indistinguishable from original work.

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End of Section

SECTION 0810

HOLLOW METAL DOORS

1. Metal Doors:

a. Metal doors shall be a flush constructed insulated door, as manufactured by Steelcraft or equal. Doors shall be 1 3/4” thick and made of 16 gauge galvanized steel. Door edge seams shall be welded, filled, and ground smooth. Doors shall be insulated with 1 ½ # density polyurethane insulation. Door clearances shall not exceed the following: 1/8 inch at jambs and heads; ¼ inch at meeting stiles of pair of doors; and ¾” at bottom measured from finished floor line. Doors shall be factory prime painted then finish painted as stated on drawings. Exterior door color shall be match exterior of building.

b. Doors shall be reinforced, prepped and matched to hardware functions. No field cutting of doors is allowed.

2. Door Frame:

a. Metal door frame shall be 16 gauge galvanized frame with 2” face as manufactured by Steelcraft or equal. Frame shall be painted same as doors.

3. All exterior doors shall have weather-stripping to make unit weather tight. All double doors shall be equipped with an astragal as required for a weather tight seal.

4. Anchors and Fasteners:

a. Anchors for jambs of door frames: In accordance with each manufacturer’s standard, but not less than 0.05 inches thick.

b. Anchors shall be placed near top and bottom of each jamb and at intermediate points not more than 25 inches apart.

c. Adjustable floor clip angles and removable spreaders shall be provided at bottom of door jambs. Spreaders shall be left in place until the bucks or frames are properly set and secured.

0810-1

* End of Section

SECTION 0830

SECTIONAL OVERHEAD DOORS

1. General:

a. Sectional overhead door shall be not lighter than 20 gauge steel galvanized and painted. Panels shall be of 2 inch nominal thickness and of size and arrangement shown on drawings. Door shall be painted white (interior & exterior).

b. Doors shall be insulated with a nominal 1-1/2” isocyanurate rigid foam insulation and covered with a 24 gauge galvanized cover painted white on interior. (INSULATED UNDER OPTION #2)

2. Steel Sectional Upward-Acting door:

a. Door shall be accurately counterbalanced with torsion springs, tapered drums and galvanized lift cables.

b. Door shall be equipped with wedge type opening and closing action. Track (3” minimum size) and hardware shall be of steel that is bright zinc galvanized.

c. Torsion springs shall be helical-wound of high tensile steel wire. Door shall have torsion springs and tapered drums on horizontal shafts. The door shall be accurately weighed and the exact spring, drums, cables and other elements accurately sized for proper counterbalancing.

d. Door center rails shall be designed with a weather joint. Bottom rail shall have a vinyl or neoprene weather stripping held with steel reinforcing.

e. Door shall be of size to accommodate openings installed in.

f. Furnish and install all other items of hardware, including adjustable keepers on tracks, a lift handle, and a hold down latch.

3. Door Operators:

a. Door operators where required (see drawings) shall be trolley type heavy duty automatic opener. Unit shall be equipped with a three button control station (open- stop- close) to allow door to be stopped in any position, one located on each side of wall as shown on drawings. Exterior controls shall be key operated. Enclosure for control station shall be for NEMA 3R and NEMA 12 location-Carlon, or equal. Door shall have safety edge applied to bottom of door. Operator shall have a minimum of ½ H.P. 120 volt single phase TEFC motor and shall have the following features:

0830-1

1. Continuous duty TEFC motor (Thermally protected)

2. Full ball bearing power train

3. Rotary type limit switch

4. Adjustable safety clutch

5. Emergency operation disconnect

6. Heavy duty starter-reversing contactor type with mechanical interlock.

7. Roller chain drive.

4. Shop Drawings:

a. Submit complete shop drawings and descriptive literature on the overhead doors to the Contracting Officer for approval.

0830-2

* End of Section

SECTION 0870

FINISH HARDWARE

1. General:

a. Finish hardware and accessories shall meet requirements of referenced specifications and shall be of the best quality.

b. All hardware of the same function and operation shall be the product of one manufacturer. Modify as necessary to provide specified function or operation.

c. Provide acceptable templates of all hardware items for use by manufacturers of doors and frames for proper door and frame hardware preparation.

2. Door Closers:

a. Door closers shall be installed on exterior as indicated.

b. Door closer shall be a LCN #4115-H with 90 degree hold open or equal. Closer shall be furnished in silver bronze metallic lacquer finish.

3. Hinges:

a. Hinges shall be brass or bronze with 26D finish. Hinge height of butt hinges shall be as recommended by the door manufacturer and shall have a minimum of 3 hinges per door. Width of hinges shall be such that all hinged doors will be free to swing 180 degrees and provide necessary clearance between opened door and trims.

4. Latchsets/Passage Locks/Bath Locks:

Locksets shall be installed on personnel doors as indicated in the hardware schedule.

a. Latchsets shall meet the requirements of Federal Specification FF-H-10, Series 86, heavy duty locks. Passage locks and bath locks shall meet ANSI F75 and F76. Use Yale, or equal. All latches shall be a lever.

1. Use Yale #AU5407LN where locksets are required.

2. Use Yale #AU5401LN where pass locks are required.

3. Use Yale #AU5402LN where bath locks are required.

4. Use Yale #3312B where bored deadlocks are required.

b. Lock and latch strikes shall be aligned and set 43 inches above finished floors.

0870-1

c. Trim design for locksets and other hardware shall be selected from standard manufacturer’s samples by the C.O.R. Trim material shall be bronze, cast brass, or wrought brass fabricated with US 26D dull chromium finish. Roses shall be concealed screw or screwless type. Knob shanks shall be screwless type.

d. Lock cylinders shall be six pin tumbler type. Lock cylinders shall have interchangeaable core or removable core cylinder meeting the requirements of the referenced Federal Specifications. Lock cylinders shall be permanently inscribed with keychange, keycontrol symbol, and manufacturer’s name or trademark.

e. Keys shall be permanently inscribed “U.S. Property-Do Not Duplicate.” Keys shall be appropriately tagged. All lockable doors shall be keyed alike.

f. Furnish 5 keys for each lock.

5. Push Plates, Pull and Kick Plates:

a. Install push, pull, and kick plates on doors as indicated in the hardware schedule, herein specified.

b. Push, pull, and kick plates shall be as manufactured by Rockwood Model #70, 125x70 and 8”x30” (kick plate) respectively or equal.

c. Finish shall match other hardware.

d. Mounting height shall be per manufacturer’s instructions.

6. Thresholds shall be extruded aluminum similar to Pemko series #P181AV, or equal. Size of threshold shall vary as required to meet existing threshold conditions.

7. Weather-Stripping:

Weather-stripping shall be vinyl bubble with extruded aluminum retainer similar to

Pemko number P297AV, or equal.

8. Hardware Schedule:

a. Refer to drawings for hardware type locations.

9. Installation:

a. Mount hardware units at heights indicated in ”Recommended Locations for Builders Hardware for Standard Steel Doors and Frames” by the Door and Hardware Institute, except as specifically indicated or required to comply with governing regulations.

0870-2

b. Install each hardware item in compliance with the manufacturer’s instructions and recommendations.