J.4_CSISpecsSupplementalSpecs_AlturasWater_Restoration.pdf

HIGH – PERFORMANCE COATINGS 099600 - 1

USDA FOREST SERVICE, R4

ALTURAS WATER SYSTEM IMPROVEMENTS

SECTION 099600 - HIGH-PERFORMANCE COATINGS

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes surface preparation and the application of high-performance coating systems on the following substrates:

1. Exterior Substrates:

a. Galvanized Metal

b. Carbon-Steel

1.2 DEFINITIONS

A. MPI Gloss Level 5: 35 to 70 units at 60 degrees, according to ASTM D 523.

B. MPI Gloss Level 6: 70 to 85 units at 60 degrees, according to ASTM D 523.

C. MPI Gloss Level 7: More than 85 units at 60 degrees, according to ASTM D 523.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product. Include preparation requirements and application instructions.

1. Include printout of current "MPI Approved Products List" for each product category specified, with the proposed product highlighted.

B. Samples: For each type of coating system and in each color of topcoat indicated.

C. Mock-ups: As directed by COR. Minimum 5 SF

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following:

1. Benjamin Moore & Co.

2. Devoe Paint Company; Akzo Nobel.

3. Sherwin-Williams Company (The).

B. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include but are not limited to products listed in the Exterior http://www.specagent.com/Lookup?ulid=11657 http://www.specagent.com/Lookup?uid=123457010721 http://www.specagent.com/Lookup?uid=123457010731 http://www.specagent.com/Lookup?uid=123457010727

HIGH – PERFORMANCE COATINGS 099600 - 2

High-Performance Coating Schedule or Interior High-Performance Coating Schedule for the coating category indicated.

2.2 HIGH-PERFORMANCE COATINGS, GENERAL

A. MPI Standards: Products shall comply with MPI standards indicated and shall be listed in its "MPI Approved Products Lists."

B. Material Compatibility:

1. Materials for use within each paint system shall be compatible with one another and substrates indicated, under conditions of service and application as demonstrated by manufacturer, based on testing and field experience.

2. For each coat in a paint system, products shall be recommended in writing by topcoat manufacturers for use in paint system and on substrate indicated.

3. Products shall be of same manufacturer for each coat in a coating system.

C. Colors: As selected by COR from manufacturer's full range.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions, with Applicator present, for compliance with requirements for maximum moisture content and other conditions affecting performance of the Work.

B. Verify suitability of substrates, including surface conditions and compatibility with existing finishes and primers.

C. Proceed with coating application only after unsatisfactory conditions have been corrected.

1. Application of coating indicates acceptance of surfaces and conditions.

3.2 PREPARATION

A. Comply with manufacturer's written instructions and recommendations in "MPI Architectural Painting Specification Manual" applicable to substrates and coating systems indicated.

B. Remove hardware, covers, plates, and similar items already in place that are removable and are not to be painted. If removal is impractical or impossible because of size or weight of item, provide surface-applied protection before surface preparation and painting.

1. After completing painting operations, use workers skilled in the trades involved to reinstall items that were removed. Remove surface-applied protection if any.

C. Clean substrates of substances that could impair bond of coatings, including dust, dirt, oil, grease, and incompatible paints and encapsulants.

HIGH – PERFORMANCE COATINGS 099600 - 3

1. Remove incompatible primers and re-prime substrate with compatible primers or apply tie coat as required to produce coating systems indicated.

3.3 APPLICATION

A. Apply high-performance coatings according to manufacturer's written instructions and recommendations in "MPI Architectural Painting Specification Manual."

B. Apply coatings to produce surface films without cloudiness, spotting, holidays, laps, brush marks, runs, sags, ropiness, or other surface imperfections. Produce sharp glass lines and color breaks.

3.4 EXTERIOR HIGH-PERFORMANCE COATING

A. Galvanized-Metal Substrates:

1. Epoxy System MPI EXT 5.3C:

a. Prime Coat: Primer, epoxy, anti-corrosive, for metal, MPI #101.

b. Intermediate Coat: Epoxy, matching topcoat.

c. Topcoat: Epoxy, gloss, MPI #77.

B. Carbon-Steel Retardant Piping:

1. Epoxy System MPI EXT 5.3C:

a. Prime Coat: Primer, epoxy, anti-corrosive, for metal, MPI #101.

b. Intermediate Coat: Epoxy, matching topcoat.

c. Topcoat: Epoxy, gloss, MPI #77.

END OF SECTION 099600

APRIL 2020

PRECAST CONCRETE UTILITY BUILDING 133400 - 1

SECTION 133400 - PRECAST CONCRETE UTILITY BUILDING

PART 1 - GENERAL

1.1 SUMMARY

A. This section applies to the fabrication and installation of a precast concrete Utility Building, including shipment to site, all work necessary to completely fabricate, and installation of other manufactured accessories needed or specified in this section for a complete Utility Building.

1.2 SUBMITTALS

A. Manufacturer’s Literature: Submit literature for the following items to the Contracting Officer (CO) for approval within 10 day after award of contract. Drawings and literature must be marked to show the exact model, size, and color proposed.

1. Door, louvered vents, and door hardware.

2. Paint, interior and exterior.

3. Caulk, ground and adhesive.

4. Concrete color additive, stains, concrete curing compound and concrete sealer.

B. Shop Drawings: Submit four sets of shop drawings of the Utility Building stamped by a Professional Engineer.

C. Design Calculations: Submit two sets of design calculations showing that the building is designed for the structural loads required, fabrication and transportation loads, and crack prevention and control.

D. Concrete Delivery Certificates: Supplier shall furnish a certificate with each truckload of concrete delivered showing the items in the following list. Submit these certificates to the CO upon delivery of the Utility Building.

1. Weight of cement in each load.

2. Weight of fine aggregate in each load.

3. Weight of coarse aggregate in each load.

4. Weight of water in each load.

5. Time of day cement was added to the aggregate and water.

PART 2 - PRODUCTS

2.1 PRECAST UTILITY BUILDING

A. Design:

1. Snow Load: 200 lbs/ft2

2. Wind Load: 90 mph, exposure C from 2006 International Building Code

3. Seismic Load: Category E from 2006 International Building Code

PRECAST CONCRETE UTILITY BUILDING 133400 - 2

B. Size: 10.5’ Wide x 12’ Long (CXT) or 10’ Wide x 12’ Long (Missoula Concrete Construction).

C. Quality: Manufactured in a Precast Concrete Institute (PCI) Certified Plant for the type of product provided.

D. Model: Schweitzer Style Utility Building as manufactured by CXT Incorporated, McDonald Peak Style Utility Building as manufactured by Missoula Concrete Construction, or an approved equal.

E. Manufacturers of precast concrete utility buildings include, but are not limited to, the following:

1. CXT Incorporated- Building Division, Spokane, WA, 509.921.8766, www.cxtinc.com

2. Missoula Concrete Construction, Missoula, MT, 406.549.9682, www.missoulaconcrete.com

2.2 BUILDING WALLS AND SLABS

A. Floor Slab: 5-inch minimum thickness.

B. Walls: 4-inch average thickness

2.3 WALL VENTS

A. Design: Stationary wall louver, self-flashing with 18-16 aluminum mesh insect screen.

B. Frame: 18 gauge galvanized steel

C. Blades: 20 gauge roll-formed galvanized steel, 45-degree, with 4-inch depth.

D. Color: Vent colors shall be selected by the Contracting Officer from a full range of manufacture’s colors.

E. Model: Model MPF-G Wall Louver, of the size indicated on the Drawings, as manufactured by Metallic Products or an approved equal.

2.4 ROOF

A. Roof Thickness: 4½-inch

B. Gabled type with a turned down edge to prevent water from migrating down the bottom edge of the roof panel and back into the building.

2.5 PRECAST CONCRETE FORM WORK

A. Construct forms of plywood, lumber, or steel sheets or plates free of defects. Forms must be removable without injuring the concrete and must be constructed to maintain tolerances between mating surfaces of building components.

B. Form liners

PRECAST CONCRETE UTILITY BUILDING 133400 - 3

1. Walls: Wood-textured appearance, Symons Corporation’s “Random Barnwood,” or an approved equal.

2. Roof: Wood shake appearance

C. Form coating: Non-staining type that will not leave residual matter on concrete surface or adversely affect proper bonding of subsequent coatings, caulking, grout or adhesive applied to concrete surfaces.

1. Form release agent or coating: As recommended by form liner manufacturer.

2. Coating containing mineral oils or other nondrying ingredients will not be permitted.

2.6 CONCRETE REINFORCEMENT

A. Reinforcing steel: ASTM A615, Grade 60.

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

2.7 CONCRETE MIX

A. Concrete supplier: Ready-mix or another approved precast concrete product firm.

B. Proportion concrete in accordance with ACI 211.1 to obtain concrete with good workability.

C. Concrete design

1. Aggregate: Coarse No. 67 (Table 2, ASTM C33)

2. Minimum cement content: 505 lb/cy

3. Cement type: ASTM C150 Type III

4. Maximum water-cement ratio: 0.45

5. Slump: 3 to 5 inches by ASTM C143

6. Air content: 4-7% by ASTM C231

7. Minimum strength concrete: 5,000 psi at 28 days

8. Water: Potable

9. Admixtures:

a. Air-entraining agent: ASTM C260

b. Water reducing agent: ASTM C494, Type A

c. Use of other admixtures is subject to approval by the Contracting Officer

2.8 COLORED CONCRETE

A. Color additives: ASTM C979. Provide a 12”x 12”x 1” color sample to the Contracting Officer for approval. The following components shall contain colored concrete:

1. Building roof panels

2. Building wall panels

PRECAST CONCRETE UTILITY BUILDING 133400 - 4

2.9 CONCRETE CURING COMPOUND AND ROOFING

A. Curing compound: Colorless, ASTM C309, Type 1 or 1-D.

2.10 CAULKING, GROUT, ADHESIVE, AND MORTAR

A. Caulking shall remain flexible and non-sag at temperatures from -50° to 140° Fahrenheit.

1. Exterior joints (including roof/wall and wall panel joints): Tripolymer sealant caulk which compliments exterior color and has a minimum 5 year guarantee.

2. Interior joints: Paintable silicone based caulking with a minimum 5 year guarantee.

B. Grout: Non-shrink type matching color of surrounding concrete as closely as possible.

C. Epoxy concrete adhesive: Two component, rigid, non-sag gel adhesive for bonding to dry or damp surfaces, moisture insensitive. Color to match surrounding concrete as closely as possible.

D. Portland cement mortar: One part Portland cement, three parts sand, and enough water to make a workable mixture.

2.11 FINISHES AND PAINTS

A. Paint and accessory materials: Similar to the “top-of-the-line” products of the manufacturer’s listed below.

1. Benjamin-Moore and Company, www.benjaminmoore.com

2. Columbia Paint Company, www.columbiapaint.com

B. Maximum lead content: 0.06 % by weight of lead.

C. Type of Paint

1. Metal, interior and exterior

a. Waterborne acrylic bonding primer, Columbia 04-022, or an approved equal.

b. Alkyd-oil Based Enamel, semi-gloss, Columbia 03-241, or an approved equal.

2. Exterior Concrete

a. Stain- pure acrylic water repellent penetrating stain in the same colors as the walls or roof

b. Sealer- clear acrylic anti-graffiti sealer

3. Interior Concrete

a. Floors- high solid single-component, chemical and urine resistant aliphatic moisture cure urethane, that meets ADA requirements for slip resistance.

b. Interior walls and ceiling- modified acrylic, penetrating pigment followed by a clear acrylic anti-graffiti sealer.

D. Paint colors

PRECAST CONCRETE UTILITY BUILDING 133400 - 5

1. Metal door frames, louvered vents, and doors (interior and exterior): dark brown.

2. Exterior concrete walls and roof: Color shall be as approved by the Contracting

Officer (See 2.8).

3. Interior concrete walls: White.

4. Interior concrete floor: Gray.

2.12 STEEL DOORS

A. Doors: Flush panel type, 1 ¾ inch thick, minimum 16 gauge prime coated steel panels, with minimum 12 gauge internal bracing channels with polystyrene core.

B. Door frames shall be knockdown or welded type, single rabbet, minimum 16 gauge prime coated steel, width to suit wall thickness, equal to Steelcraft.

1. Three (3) rubber door silencers shall be provided on latch side of frame

C. Door frame anchors

1. Provide three (3) anchors per jamb located approximately at the same level as hinge locations.

2. Use anchor type suitable for fastening to precast concrete and designed for future removal of frame.

3. Anchors may be omitted if frame is cast in panel.

D. Door hinges shall be 3 per door with dull chrome plating 4½”x4½”, adjustable tension, automatic-closing for each door.

E. Deadbolt shall be Mortised type, operated by key from outside only, which will receive the Forest Service cylinder; similar and equal to Yale 1152. Finish shall be US26D (dull chrome).

F. Door sweep/seal will be Pemco #420ASL.

G. Door stop shall be a cast metal base, US26D (dull chrome) finish with gray rubber 2 3/8 inch diameter bumper with a 1 inch projection

H. Threshold shall be extruded aluminum with neoprene seal, Pemko #170, or an approved equal.

2.13 PLUMBING APPURTENANCES

A. According to Section 221103 “Plumbing Appurtenances.”

PART 3 - EXECUTION

3.1 BUILDING CONSTRUCTION

A. Concrete

1. Support and brace forms sufficiently to prevent distortion of forms due to pressure of the concrete during vibrating of concrete and the curing period.

PRECAST CONCRETE UTILITY BUILDING 133400 - 6

2. Vertical grooves in the form liner pattern shall be continuous except for openings for doors.

a. Horizontal butt joints between liner panels will not be allowed.

b. Vertical butt joints between form liner panels shall be made at vertical groove in liner pattern except at outside corners.

c. Vertical grooves in form liner pattern shall be arranged so that there is equal space between vertical doorframe edges and the adjacent vertical grooves at each opening.

3. Form ties will not be allowed.

4. Thoroughly clean forms and form liners before each use.

5. Apply form coating and form release agent on all forms and form liners in accordance with the manufacturer’s recommendations

6. The Contractor shall assume all responsibility for determining when to remove the concrete components from the forms without causing structural damage to the components. Utility Buildings constructed with damaged components will be rejected.

B. Concrete Reinforcement

1. Details of reinforcement: ACI 318.

2. Center steel reinforcement in the cross-sectional area of the walls. Provide at least

1 inch of concrete cover on the under surface of roof and floor. Provide diagonal reinforcement at openings.

3. Accurately place and adequately support reinforcing steel or strand in final position prior to starting placement of concrete. The maximum allowable variation for center-to-center spacing of reinforcing steel is ½ inch.

4. Use full length reinforcing steel whenever possible and keep the number of splices to a minimum. When splices are necessary on long runs, alter splices from opposite sides of the component for adjacent steel bars.

a. No. 4 or smaller shall be lapped a minimum of 12 inches;

b. Larger than No. 4 shall be lapped a minimum of 24 bar diameters.

5. Bend bars cold. Do not bend bars partially embedded in concrete

C. Cold Weather Concrete

1. Cold weather concrete: ACI 306 and as follows:

a. Do not place concrete if ambient temperature is expected to be below 35°F during the curing period unless heating equipment is readily available to maintain temperature of at least 45°F.

b. Use no materials containing frost or lumps of frozen.

D. Hot Weather Concrete

1. The temperature of the concrete shall not exceed 80°F at the time of placement, and when the ambient temperature reaches 90°F, the concrete shall be protected with moist covering or other methods approved by the Contracting Officer.

PRECAST CONCRETE UTILITY BUILDING 133400 - 7

E. Placing And Consolidating Concrete

1. Place layers not more than 24 inches deep. Do not move concrete with vibrators or tampers

2. Consolidate the concrete with suitable mechanical vibrators operating within the concrete or attached steel forms. Vibrate at any point sufficiently to accomplish compaction, but do not prolong to a point where segregation occurs.

F. Finishing Concrete

1. Interior Floor and Exterior Slab

a. Strike flush to within 1/8-inch variation in 6 feet.

b. Float and trowel slabs smooth until no marks remain.

c. Apply final light broom finish to exterior slabs only.

2. Interior Wall Surfaces and Ceiling

a. Finish shall be that provided by smooth steel form or smooth trowel finish with no trowel marks.

3. Exterior Wall Surfaces and Roof

a. Texture provided by approved form liner

4. Cracks and Patching

a. Cracks in concrete components caused by Contractor fabrication, shrinkage during curing, handling, shipping, and installation shall be cause for rejection if the Government determines that the crack will affect the serviceability or structural integrity of the component.

b. Fill small holes, depressions, and air or rock pockets in all surfaces with non-shrinking Portland cement based patching material while concrete is still green and within one day of form removal. Patch shall match the color, finish, and texture of surrounding surface.

c. Patching will not be allowed on defective areas if the structural integrity of the building is affected.

G. Curing And Hardening Concrete

1. Keep all concrete surfaces moist for at least six days after being placed. Acceptable methods include ponding, wet burlap, curing paper, plastic sheets, and membrane curing compound. Other methods are subject to the approval of the Contracting Officer.

2. Membrane curing compounds will not be allowed where curing compound will interfere with penetration or adhesion of final finish

H. Colored Concrete

1. Use the same type and brand of cement, coloring agent, aggregates, and other additives throughout the building. Use ingredients from the same lot or manufacturing process. Use aggregates from only one source.

PRECAST CONCRETE UTILITY BUILDING 133400 - 8

2. Use uniform batches of concrete to ensure consistency of the finished concrete color. Weigh all ingredients. Add color by weight as recommended by manufacturer of the concrete color. Uniformly disperse the color throughout each batch during the mixing operation.

a. Wash and thoroughly clean the mixer and transporting equipment before mixing colored concrete. Repeat each time a change is made to a different color.

I. Structural Joints

1. Joining details other than those detailed below will not be allowed unless shown on shop drawings that are stamped by a Professional Engineer and approved by the Contracting Officer prior to manufacture of buildings.

2. Join wall components together with two welded plate pairs at each joint.

a. Weld plate: 6 inches long; with one pair located in the top quarter and one pair in the bottom quarter of the seam.

b. Seal inside seams with paintable caulk.

c. Seal outside seams with caulk to match building color or clear.

3. Join walls and roof with weld plates, minimum 3” x 6”, at each building corner.

a. Seal exterior seams with caulk that is clear or matches building color.

4. Join the floor slab and walls with a grout mixture on the interior and two weld plate pairs for each wall component, one near each end of each wall panel, or each corner on each side, whichever is greater.

a. Weld plate: 6 inches long

b. Grout: Provide smooth cover between walls and floor

J. Finishes And Paint

1. Apply materials in accordance with manufacturer’s recommendations.

2. Examine surfaces to ensure all are properly prepared to receive finish.

a. Allow a minimum of 14 days curing time for concrete before paints are applied to concrete. Allow longer time when recommended by paint manufacturer.

b. If needed to ensure uniform application, prepare concrete surface for paint application by acid etching with 30% H=hydrochloric acid. Flush with water and allow to thoroughly dry.

3. Painting shall not be done under the following conditions:

a. Temperature is 50°F or below.

b. Surfaces are damp.

c. Dusty areas.

4. Schedule of Finishes

a. Metalwork (steel doors, door vents and frames, and roof posts)

PRECAST CONCRETE UTILITY BUILDING 133400 - 9

1) One coat metal primer

2) Two coats alkyd oil enamel

b. Exterior concrete surfaces:

1) Exterior slab: one coat of clear sealer

2) Exterior walls: two coats of pure acrylic water repellent penetrating stain in the same color as the walls or roof followed by one coat of clear acrylic anti-graffiti sealer

c. Interior Concrete Surfaces

1) Walls and ceiling of building: Two coats of pigment followed by one coat of clear sealer.

2) Interior floor: one coat of a high solid single-component, chemical and urine resistant aliphatic moisture cure urethane, that meets ADA requirements for slip resistance.

K. Metal Doors And Frames

1. Install steel doorframe in accordance with manufacturer’s recommendations.

a. Fit door accurately in frame

2. Install hardware in accordance with manufacturer’s instructions after finish painting is completed.

3. Install sweep on bottom of door and adjust so it contacts the threshold when door is closed.

L. Wall Vents

1. Wall vents shall be cast into the concrete wall.

M. Cleanup

1. Clean building walls, floors, and roof using soapy water following complete installation of Utility Building.

END OF SECTION 133400

January 2022

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 1

USDA FOREST SERVICE, R-4

ALTURAS LAKE WATER SYSTEM IMPROVEMENTS

SECTION 133401 - PRECAST CONCRETE VAULT RESTROOM BUILDING

PART 1 - GENERAL

1.1 SUMMARY

A. This section applies to the fabrication and installation of Precast Concrete Vault Restroom buildings, including shipment to site, all work necessary to completely fabricate, and installation of other manufactured accessories needed or specified in this section for a complete Vault Restroom.

1.2 SUBMITTALS

A. Manufacturer’s Literature: Submit literature for the following items to the Contracting Officer (CO) for approval within 10 day after award of contract. Drawings and literature must be marked to show the exact model, size, and color proposed.

1. Door, louvered vents, and door hardware.

2. Paint, interior and exterior.

3. Caulk, ground and adhesive.

4. Concrete color additive, stains, concrete curing compound and concrete sealer.

B. Shop Drawings: Submit four sets of shop drawings of the Precast Concrete Vault Restroom stamped by a Professional Engineer.

C. Design Calculations: Submit two sets of design calculations showing that the building is designed for the structural loads required, fabrication and transportation loads, and crack prevention and control.

D. Concrete Delivery Certificates: Supplier shall furnish a certificate with each truckload of concrete delivered showing the items in the following list. Submit these certificates to the CO upon delivery of the Vault Restroom.

1. Weight of cement in each load.

2. Weight of fine aggregate in each load.

3. Weight of coarse aggregate in each load.

4. Weight of water in each load.

5. Time of day cement was added to the aggregate and water.

PART 2 - PRODUCTS

2.1 PRECAST CONCRETE VAULT RESTROOM

A. Design criteria

1. Snow Load: 200 lbs/ft2

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 2

2. Wind Load: 90 mph, exposure C from 2012 International Building Code

3. Seismic Load: Category E from 2012 International Building Code

4. Designed to meet the requirements of the Americans with Disabilities Act

Requirements and Uniform Federal Accessibility Standard including as of the date of these specifications.

5. Design incorporates all design aspects of Sweet Smelling Technology as outlined by Brian Cook for the U.S. Forest Service. ("In Depth Design and Maintenance Manual for Vault Toilets" - July 1991 - Publication No. 9123 1601)

B. Quality: Manufactured in a Precast Concrete Institute (PCI) Certified Plant for the type of product provided.

C. Precast Concrete Vault Restroom buildings shall have “Missoula Concrete Everlog” exterior finish as manufactured by Missoula Concrete Construction or approved equal.

One building shall be an Aspen single-unit vault type having a right-hand full privacy screen and the other shall be a double-unit vault type having a front entrance privacy screen. The double-unit front privacy screen shall only be provided if the respective Option Item is awarded.

D. Manufacturers of Precast Concrete Vault Restrooms include, but are not limited to, the following:

1. CXT Incorporated- Building Division, Spokane, WA, (509) 921-8766, www.cxtinc.com

2. Missoula Concrete Construction, Missoula, MT, (406) 549-9682, www.missoulaconcrete.com

2.2 BUILDING WALLS AND SLAB

A. Floor Slab: 5-inch minimum thickness.

B. Walls: 4-inch average thickness, 3-inch minimum wall thickness at the top of the walls.

C. Roof: 4 ¼ inch minimum concrete thickness

2.3 OPTIONAL POST TENSIONING

A. The contractor may elect to circumferentially post tension reinforcing steel for the floor and roof slabs to protect against leaking and cracking. Should the Contractor elect to post tension reinforcement steel in the roof slab, fluid applied elastomeric roofing may be deleted.

2.4 WALL VENTS

A. Wall vents: Airolite No. 609B, size shown on the drawings, The Airolite Co., Marietta, OH, www.airolite.com; or HEAVY DUTY KICK PROOF VENT by Romtec, Roseburg, OR.; or an approved equal. Only one vent per toilet room should be installed – the contracting officer will specify the location of the vent (to be in a wall or the door – the side of the building with the prevailing wind) http://www.airolite.com/

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 3

2.5 ROOF

A. Sloped slab shed type or gabled type with a turned down edge to prevent water from migrating down the bottom edge of the roof panel and back into the building.

B. Minimum 6:12 pitch desired

2.6 VENT STACK

A. Vent Stack: shall be a minimum 12 inch diameter HDPE (with a DR of 32.5) and extend from the vault to a minimum of 3 feet higher than the roof peak. Vent Stack shall be black.

2.7 PRECAST CONCRETE FORM WORK

A. Construct forms of plywood, lumber, or steel sheets or plates free of defects. Forms must be removable without injuring the concrete and must be constructed to maintain tolerances between mating surfaces of building components.

B. Form liners

1. Walls: Wood-textured appearance, “Everlogs” or an approved equal.

2. Roof: Wood shake appearance

C. Form coating: Non-staining type that will not leave residual matter on concrete surface or adversely affect proper bonding of subsequent coatings, caulking, grout or adhesive applied to concrete surfaces.

1. Form release agent or coating: As recommended by form liner manufacturer.

2. Coating containing mineral oils or other nondrying ingredients will not be permitted.

D. Vault:

1. Provide one concrete vault area per toilet riser.

2. Each concrete vault shall hold a minimum of 1,000 gallons of waste.

3. Concrete vault floor shall be sloped a minimum of 1 inch per foot towards the vault cleanout.

4. Vault Liner: Vault shall include a one-piece molded polyethylene (LDPE) liner with a minimum thickness of 0.10 inch and lip over top of vault. Liner shall be secured to sides of vault interior so that there are no voids between liner and sides of vault.

2.8 CONCRETE REINFORCEMENT

A. Reinforcing steel: ASTM A615, Grade 60.

B. Pre-stress strand (if used): ASTM A416, Grade 270.

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

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 4

2.9 CONCRETE MIX

A. Concrete supplier: Ready-mix or another approved precast concrete product firm.

B. Proportion cement, aggregate, and water to obtain concrete with good workability.

C. Concrete design

1. Aggregate: Coarse No. 67 (Table 2, ASTM C33)

2. Minimum cement content: 6.5 sacks per yd3

3. Cement type: ASTM C150 Type II, IIA, or III for building

4. Maximum water-cement ratio: 0.45

5. Slump: 3 to 5 inches by ASTM C143

6. Air content: 4-7% by ASTM C231

7. Minimum strength concrete: 4,500 psi at 28 days

8. Water: Potable

9. Admixtures:

a. Air-entraining agent: ASTM C260

b. Water reducing agent: ASTM C494, Type A

c. Use of other admixtures is subject to approval by the Contracting Officer

2.10 COLORED CONCRETE

A. Color additives: ASTM C979. Provide a 12”x 12”x 1” color sample to the Contracting Officer for approval. The following components shall contain colored concrete:

1. Building roof panels

2. Building wall panels

2.11 CONCRETE CURING COMPOUND AND ROOFING

A. Curing compound: Colorless, ASTM C309, Type 1 or 1-D.

B. Fluid Applied Elastomeric Roofing: Acrylic latex resin-base elastomeric roofing material applied in fluid form suitable for use over concrete roof slabs. If manufacturer elects to post-tension roof panel, the roofing material may be deleted.

1. Color: Brown.

2. Material: “Rapid Roof” as manufactured by the Conclin Company or an approved equal.

2.12 CAULKING, GROUT, ADHESIVE, AND MORTAR

A. Caulking shall remain flexible and non-sag at temperatures from -50° to 140° Fahrenheit.

1. Exterior, roof peak joint: 100% silicone caulk, clear; GE Silicone II or an approved equal.

2. Exterior joints (including roof/wall and wall panel joints): Tripolymer sealant caulk which compliments exterior color and has a minimum 5 year guarantee.

3. Interior joints: Paintable silicone based caulking with a minimum 5 year guarantee.

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 5

B. Grout: Non-shrink type matching color of surrounding concrete as closely as possible.

C. Epoxy concrete adhesive: Two component, rigid, non-sag gel adhesive for bonding to dry or damp surfaces, moisture insensitive. Color to match surrounding concrete as closely as possible.

D. Portland cement mortar: One part Portland cement, three parts sand, and enough water to make a workable mixture.

2.13 FINISHES AND PAINTS

A. Paint and accessory materials: Similar to the “top-of-the-line” products of the manufacturer’s listed below.

1. Benjamin-Moore and Company, www.benjaminmoore.com

2. Columbia Paint Company, www.columbiapaint.com

B. Maximum lead content: 0.06 % by weight of lead.

C. Type of Paint

1. Metal, interior and exterior

a. Waterborne acrylic bonding primer, Columbia 04-022, or an approved equal.

b. Alkyd-oil Based Enamel, semi-gloss, Columbia 03-241, or an approved equal.

2. Exterior Concrete

a. Stain- pure acrylic water repellent penetrating stain

b. Sealer- clear acrylic anti-graffiti sealer

3. Interior Concrete

a. Floors- 1 part water based epoxy with a silica sand suspension to provide a uniform texture.

b. Interior walls and ceiling- modified acrylic, penetrating pigment followed by a clear acrylic anti-graffiti sealer.

D. Paint colors

1. Metal window and door frames, louvered vents, and doors (interior and exterior):

Java Brown

2. Exterior concrete walls and floor: Sand Beige

3. Exterior concrete roof: Java Brown

4. Interior concrete walls: White

5. Interior concrete floor: Gray

2.14 STEEL DOORS

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 6

A. Doors: Flush panel type, 1 ¾ inch thick, minimum gauge zinc-coated steel panels, with minimum 18 gauge internal bracing channels, equal to Steelcraft L-16 of size shown on the drawings.

B. Door frames shall be knockdown or welded type, single rabbet, minimum 16 gauge zinc-coated steel, width to suit wall thickness, equal to Steelcraft.

1. Three (3) rubber door silencers shall be provided on latch side of frame

C. Door frame anchors

1. Provide three (3) anchors per jamb located approximately at the same level as hinge locations.

2. Use anchor type suitable for fastening to precast concrete and designed for future removal of frame.

3. Anchors may be omitted if frame is cast in panel.

D. Door hinges

1. One (1) pair shall be 4 ½ inch spring hinges

2. One-half (½) pair shall be standard butt hinge

3. Top and bottom hinge shall have an adjustable tension spring and be adjusted to a

5 lb. maximum pull.

4. Finish shall be US26D (dull chrome)

E. Deadbolt shall be Mortised type, operated by key from outside only, which will receive the Forest Service cylinder; similar and equal to Yale 1152. Finish shall be US26D (dull chrome).

F. Door Louver shall be fixed, inverted split Y, non-vision, 18 gauge galvanized steel with factory prime coat, equal to FDLS series by Anemostat Door Products, www.anemostatwest.com. There shall be no insect screen between louvers.

G. Door sweep shall be an adjustable brush type placed at bottom of door.

H. Door stop shall be a cast metal base, US26D (dull chrome) finish with gray rubber 2 3/8 inch diameter bumper with a 1 inch projection

I. Threshold shall be extruded aluminum with neoprene seal, Pemco #170, or an approved equal.

2.15 INTERIOR HARDWARE

A. Grab Bars: Grab bars shall be 18-guage type 304 stainless steel, 1 ½ inch diameter with 1 ½ inch clearance; minimum of length required for accessibility standards. Able to withstand 300-pound top load.

B. Toilet Paper Dispenser: Constructed of ¼” thick, type 304 stainless steel. Holds three

(3) standard rolls of toilet paper. Fastening system able to withstand 300-pound top loading.

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 7

C. Double Coat Hook: Formed construction, type 304 stainless steel (Satin Finish), 16-guage minimum.

D. Toilet riser: Toilet riser shall be molded, smooth one-piece constructed of HDPE polyethylene, cross linked polyethylene, or stainless steel. With heavy duty seat and lid (Color: White); Meeting ADA standards. Apply Butyl rubber adhesive sealant to the top surface of the concrete vault before placing the structure on the vault.

2.16 SIGNS

A. Signs: Signs to have raised pictograms, letters, and braille to meet ADA. Signs shall designate standard unisex symbol for single units or separate mens & womens for double units. All signs to be securely anchored into concrete with tamper resistant anchors.

2.17 WINDOWS

A. Window frames shall be constructed from steel tubing and fasten water-tight to building with vandal resistant fasteners.

B. Window glazing shall be translucent pebble finished mar-resistant Lexan polycarbonate.

Minimum thickness of ¼ inch.

2.18 VAULT CLEANOUT

A. Frame: shall be constructed from steel frame poured integral with the concrete slab.

B. Cover/Lid: shall be constructed of minimum ¼ inch steel. Shall be hinged to the steel frame. Configured with a locking mechanism that will receive a government furnished padlock.

C. Gasket: Cover/Lid shall be gasketed around the entire perimeter of the lid to provide an airtight seal.

PART 3 - EXECUTION

3.1 BUILDING CONSTRUCTION

A. Concrete

1. Support and brace forms sufficiently to prevent distortion of forms due to pressure of the concrete during vibrating of concrete and the curing period.

2. Vertical grooves in the form liner pattern shall be continuous except for openings for doors.

a. Horizontal butt joints between liner panels will not be allowed.

b. Vertical butt joints between form liner panels shall be made at vertical groove in liner pattern except at outside corners.

c. Vertical grooves in form liner pattern shall be arranged so that there is equal space between vertical doorframe edges and the adjacent vertical grooves at each opening.

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 8

3. Form ties will not be allowed.

4. Thoroughly clean forms and form liners before each use.

5. Apply form coating and form release agent on all forms and form liners in accordance with the manufacturer’s recommendations

6. The Contractor shall assume all responsibility for determining when to remove the concrete components from the forms without causing structural damage to the components. Vault Restrooms constructed with damaged components will be rejected.

B. Concrete Reinforcement

1. Details of reinforcement: ACI 318.

2. Center steel reinforcement in the cross-sectional area of the walls. Provide at least

1 inch of concrete cover on the under surface of roof and floor. Provide diagonal reinforcement at openings.

3. Accurately place and adequately support reinforcing steel or strand in final position prior to starting placement of concrete. The maximum allowable variation for center-to-center spacing of reinforcing steel is ½ inch.

4. Use full length reinforcing steel whenever possible and keep the number of splices to a minimum. When splices are necessary on long runs, alter splices from opposite sides of the component for adjacent steel bars.

a. No. 4 or smaller shall be lapped a minimum of 12 inches;

b. Larger than No. 4 shall be lapped a minimum of 24 bar diameters.

5. Bend bars cold. Do not bend bars partially embedded in concrete

C. Cold Weather Concrete

1. Cold weather concrete: ACI 306 and as follows:

a. Do not place concrete if ambient temperature is expected to be below 35°F during the curing period unless heating equipment is readily available to maintain temperature of at least 45°F.

b. Use no materials containing frost or lumps of frozen.

D. Hot Weather Concrete

1. The temperature of the concrete shall not exceed 80°F at the time of placement, and when the ambient temperature reaches 90°F, the concrete shall be protected with moist covering or other methods approved by the Contracting Officer.

E. Mixing And Delivery Of Ready Mix Concrete: ASTM C94, Section 11.5 through 11.9.

F. Placing And Consolidating Concrete

1. Notify the Contracting Officer at least 24 hours before any concrete placement to permit inspection

2. Place layers not more than 24 inches deep. Do not move concrete with vibrators or tampers

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 9

3. Consolidate the concrete with suitable mechanical vibrators operating within the concrete or attached steel forms. Vibrate at any point sufficiently to accomplish compaction, but do not prolong to a point where segregation occurs.

G. Finishing Concrete

1. Interior Floor and Exterior Slab

a. Strike flush to within 1/8-inch variation in 6 feet.

b. Float and trowel slabs smooth until no marks remain.

c. Apply final light broom finish to exterior slabs only.

2. Interior Wall Surfaces and Ceiling

a. Finish shall be that provided by smooth steel form or smooth trowel finish with no trowel marks.

3. Exterior Wall Surfaces: Barnwood texture provided by approved form liner.

4. Exterior Roof Surface: Shake texture provided by approved form liner.

5. Cracks and Patching

a. Cracks in concrete components caused by Contractor fabrication, shrinkage during curing, handling, shipping, and installation shall be cause for rejection if the Government determines that the crack will affect the serviceability or structural integrity of the component.

b. Fill small holes, depressions, and air or rock pockets in all surfaces with non-shrinking Portland cement based patching material while concrete is still green and within one day of form removal. Patch shall match the color, finish, and texture of surrounding surface.

c. Patching will not be allowed on any component with holes, chips, or exposed reinforcement totaling more than 18 in3 or with any defects more than 2 inches deep. Those components will be rejected and must be replaced at Contractor’s expense.

H. Curing And Hardening Concrete

1. Keep all concrete surfaces moist for at least six days after being placed. Acceptable methods include ponding, wet burlap, curing paper, plastic sheets, and membrane curing compound. Other methods are subject to the approval of the Contracting Officer.

2. Membrane curing compounds will not be allowed where curing compound will interfere with penetration or adhesion of final finish

I. Colored Concrete

1. Use the same type and brand of cement, coloring agent, aggregates, and other additives throughout the building. Use ingredients from the same lot or manufacturing process. Use aggregates from only one source.

2. Use uniform batches of concrete to ensure consistency of the finished concrete color. Weigh all ingredients. Add color by weight as recommended by

PRECAST CONCRETE VAULT RESTROOM BUILDING 133401 - 10

manufacturer of the concrete color. Uniformly disperse the color throughout each batch during the mixing operation.

a. Wash and thoroughly clean the mixer and transporting equipment before mixing colored concrete. Repeat each time a change is made to a different color.

J. Structural Joints

1. Joining details other than those detailed below will not be allowed unless shown on shop drawings that are stamped by a Professional Engineer and approved by the Contracting Officer prior to manufacture of buildings.

2. Anchor weld plates into concrete panels and weld together with a continuous weld.

Thoroughly clean welds prior to application of caulk or paint.

3. Join wall components together with two welded plate pairs at each joint.

a. Weld plate: 6 inches long; with one pair located in the top quarter and one pair in the bottom quarter of the seam.

b. Seal inside seams with paintable caulk.

c. Seal outside seams with caulk to match building color or clear.

4. Join walls and roof with weld plates, minimum 3” x 6”, at each building corner.

a. Where the Contracting Officer determines that the joint between walls and the roof is true enough to prevent point loadings on the walls, seal the joint between walls and roof gas-tight with paintable caulk.

b. Where the joint between the walls and roof is not true enough to prevent point loading, grout the joint with approved rigid non-shrinking grout that will distribute the weight of the roof evenly around the perimeter of the building walls.

c. Seal exterior seams with caulk that is clear or matches building color.

5. Join the floor slab and walls with a grout mixture on the interior and two weld plate pairs for each wall component, one near each end of each wall panel, or each corner on each side, whichever is greater.

a. Weld plate: 6 inches long

b. Grout: Provide smooth cover between walls and floor

K. Finishes And Paint

1. Apply materials in accordance with manufacturer’s recommendations.

2. Examine surfaces to ensure all are properly prepared to receive finish.

a. Allow a minimum of 14 days curing time for concrete before paints are applied to concrete. Allow longer time when recommended by paint manufacturer.

b. If needed to ensure uniform application, prepare concrete surface for paint application by acid etching with 30% H=hydrochloric acid. Flush with water and allow to thoroughly dry.

3. Painting shall not be done under the following conditions:

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a. Temperature is 50°F or below.

b. Surfaces are damp.

c. Dusty areas.

4. Schedule of Finishes

a. Metalwork (steel doors, door vents and frames, and roof posts)

1) One coat metal primer

2) Two coats alkyd oil enamel in Java Brown

b. Exterior surfaces of building walls and roof, unless concrete color manufacturer recommends a different procedure:

1) Two coats of stain

2) Linseed oil (may be applied and allowed to cure for brown buildings)

3) One coat of clear sealer

c. Interior Concrete Surfaces

1) Walls and ceiling of building: Two coats of pigment followed by one coat of clear sealer.

2) Interior floor: One coat of epoxy with a silica sand suspension.

L. Fluid Roofing

1. Apply a minimum of two coats of elastomeric roofing on top of the roof slab.

a. Prepare concrete surface and apply and cure roofing in accordance with manufacturer’s recommended procedures.

b. Minimum coverage: 3 gallons per square (100 ft2)

c. Apply joint tape to hairline cracks between applications of the two coats of elastomeric roofing.

2. This item may be deleted if there are no cracks.

M. Metal Doors And Frames

1. Install steel doorframe in accordance with manufacturer’s recommendations.

a. Fit door accurately in frame

b. Mount louvers on door with cadmium or zinc-plated corrosion resistant non-removable metal screws

2. Install hardware in accordance with manufacturer’s instructions after finish painting is completed.

3. Install sweep on bottom of door and adjust so it contacts the threshold when door is closed.

END OF SECTION 133401

WATER DISTRIBUTION SYSTEMS 221100 - 1

ALTURAS WATER SYSTEM IMPROVEMENTS

SECTION 221100 - WATER DISTRIBUTION SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section shall consist of furnishing and installing the following:

1. Potable water distribution pipe and fittings.

2. Concrete thrust blocks.

3. Drains.

B. This Section shall also include the flushing, testing and disinfection of waterlines.

1.2 DEFINITIONS

A. GSP: Galvanized Steel Pipe.

B. HDPE: High Density Polyethylene plastic.

C. PVC: Polyvinyl chloride plastic.

1.3 SUBMITTALS

A. Product Data: For the following:

1. Pipe and fittings.

2. Drain and vent screens.

B. Plan for disposal of water used for testing and disinfection of waterlines.

C. Water System Operations and Maintenance Manual.

1.4 QUALITY ASSURANCE

A. All work is to be completed according to applicable Federal, State and Local codes. This work includes, but is not limited to, materials, installation, testing and disinfection

B. Piping materials shall bear label, stamp, or other markings of specified testing agency.

C. NSF Compliance:

1. Comply with NSF 14 for plastic potable-water-service piping. Include marking "NSF-pw" on piping.

2. Comply with NSF 61 Annex G for materials for water-service piping and specialties for domestic water. All pipes, fittings, fixtures, solder and flux shall meet the 0.25% maximum lead content rules for all wetted components.

1.5 MINIMUM SYSTEM REQUIREMENTS

WATER DISTRIBUTION SYSTEMS 221100 - 2

A. Unless otherwise noted, the minimum working pressure for piping and specialties shall be 160 psig.

1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver piping with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe-end damage and to prevent entrance of dirt, debris, and moisture.

B. Protect stored piping from moisture and dirt. Elevate above grade.

C. Protect flanges, fittings, and specialties from moisture and dirt.

D. Store plastic piping protected from direct sunlight. Support to prevent sagging and bending.

1.7 PROJECT CONDITIONS

A. Existing Utilities: Do not interrupt utilities serving facilities occupied by the Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify the Contracting Officer not less than two days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without the Contracting Officer’s written permission.

1.8 COORDINATION

A. Coordinate connection to existing waterlines with Contracting Officer.

B. Verify piping materials, sizes, entry locations and pressure requirements are compatible with connection point.

C. Coordinate other utility impacts.

PART 2 - PRODUCTS

2.1 GENERAL

A. All waterlines, pipes, and fittings shall be new and unused, of the type, pressure rating or class, and size specified and as shown on the Drawings.

2.2 PIPES AND FITTINGS

A. PVC (For Building Sleeves Only): ASTM D 1785, Schedule 40; solvent-cemented joints.

1. Solvent Cement: ASTM D 2564.

2. Socket Fittings: PVC, Schedule 40, ASTM D 2467.

B. HDPE:

WATER DISTRIBUTION SYSTEMS 221100 - 3

1. Pipe, AWWA C901:

a. Material Designation: PE 4710 resin

b. Material Classification: ASTM D1248

c. Minimum Cell Classification: ASTM D 3350, 345434C

d. Dimension Ratio and Minimum Pressure Rating: DR11, 160 psig

2. Fittings:

a. Molded HDPE Fittings: ASTM D 3350, PE 4710 resin, butt-fusion type, made to match HDPE pipe dimensions and class.

b. Insert Fittings: Not allowed.

c. Transition Fittings to non-HDPE Pipe: Approved by HDPE pipe manufacturer. Compression-type fittings are not allowed.

3. Pipe Larger than 2-inch Diameter: Provide in 40-foot lengths rather than in rolls.

4. Pipe and Fittings 4-inch Diameter and Larger: Conform to AWWA C906 in addition to above requirements.

C. Galvanized Steel: ASTM A53, Schedule 40, threaded ends meeting ASME B1.20.1.

1. Fittings: Threaded, ASTM A 338.

2.3 PIPING SPECIALTIES

A. Flexible Connectors:

1. Nonferrous-Metal Piping: Bronze hose covered with bronze wire braid; with copper-tube, pressure-type, solder-joint ends or bronze flanged ends brazed to hose.

2. Ferrous Piping: Stainless-steel hose covered with stainless-steel wire braid; with ASME B1.20.1, threaded steel pipe nipples or ASME B16.5, steel pipe flanges welded to hose.

B. Dielectric Fittings: Combination of copper alloy and ferrous; threaded, solder, or plain end types; and matching piping system materials.

1. Dielectric Unions: Factory-fabricated union assembly, designed for 250-psig minimum working pressure at 180 deg F. Include insulating material that isolates dissimilar metals and ends with inside threads according to ASME B1.20.1.

2. Dielectric Flanges: Factory-fabricated companion-flange assembly, for 160- or 300-psig minimum working pressure to suit system pressures.

3. Dielectric-Flange Insulation Kits: Field-assembled companion-flange assembly, full-face or ring type. Components include neoprene or phenolic gasket, phenolic or polyethylene bolt sleeves, phenolic washers, and steel backing washers.

a. Provide separate companion flanges and steel bolts and nuts for 150- or 300-psig minimum working pressure to suit system pressures.

4. Dielectric Couplings: Galvanized-steel couplings with inert and noncorrosive thermoplastic lining, with threaded ends and 300-psig minimum working pressure at 225 deg F).

WATER DISTRIBUTION SYSTEMS 221100 - 4

5. Dielectric Nipples: Electroplated steel nipples with inert and noncorrosive thermoplastic lining, with combination of plain, threaded, or grooved end types and 300-psig minimum working pressure at 225 deg F.

2.4 PUMPOUT DRAINS

A. Pump: The Contractor shall furnish a single battery-operated utility pump capable of pumping water from the three identified pumpout drains on the Plans.

1. Design: 12-volt battery operated, self-priming, non-corroding, 500-gallon-per-hour (at 0 feet of head), with cable and attached battery clamps (10-foot minimum length), and two 6-foot garden hoses.