1_STATEMENT_OF_WORK.pdf

NEW FORK CAMPGROUND Vault Toilet FY26

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SECTION 10735

Precast Concrete Single Vault Toilet

High Desert District

PART 1. GENERAL

1.1 SECTION INCLUDES: Shipping and installing of a precast concrete single vault toilet building. Location of the vault toilet installation is shown on the map drawings. Vault toilet work is located in Sublette County at New Fork campground.

1.2 RELATED SECTIONS

A. Not Used.

1.3 REFERENCES

A. ASTM C33 Concrete Aggregates B. ASTM C39 Method of Test for Compressive Strength of

Cylindrical Concrete Specimens C. ASTM C143 Method of Test for Slump of Concrete D. ASTM C150 Standard Specification for Portland Cement E. ASTM C192 Method of Making and Curing Test Specimens in the Laboratory F. ACI 1211.1 Recommended Practice for Selecting Proportions for Normal and Heavyweight Concrete

G. PCI MNL 116 Quality Control for Plants and Production of Precast Pre-stressed Concrete Products

H. ADA Americans with Disabilities Act.

1.4 DESIGN STANDARDS

A. Snow Load: 250 pound per square foot.

B. Wind Load: 120 mile per hour wind load.

C. Earthquake: zone four

D. Additional Design Standards

E. Must meet Americans with Disabilities Act.& Uniform Federal

Accessibility Standards.

F. Meet Sweet Smelling Technology as outlined by Briar Cook for the U.S. Forest Service.

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G. Must have one-piece full length width Vault Unit to Support

Building, privacy screen. Building must have a one piece floor unit to prevent panels from migrating in different directions during periods of freeze/thaw stress.

1.5 SUBMITTALS

A. Submit 3 sets shop drawings and 1 sets structural calculations signed and sealed by a Professional Engineer licensed in the State of Wyoming.

B. Structural calculations shall show the following code information: Building Code IBC, 2003 edition, 30# PSF roof snow or live load, 100 MPH basic wind speed, seismic zone 4.

C. Submit 3 sets of Manufactures recommended shop drawings & installation instructions.

1.6 QUALITY ASSURANCE: Provide evidence of commitment of quality craftsmanship as demonstrated by the following:

A. SUPPLIER QUALIFICATIONS:

1. Be ISO 9001 certified at the time of bid.

2. Manufacturing plant must be PCI certified at the time of bid.

3. Supplier must provide stamped, engineered drawings.

4. The concrete roof to have a minimum of a 7/12 pitch.

1.7 DELIVERY:

A. Vault toilet shall be delivered by truck to Job Site. Hauling permits and freight charges are the responsibility of the manufacturer.

B. The manufacturer shall notify the Government 14 working days in advance of the expected delivery date. The Government shall be notified immediately of any unexpected delay so that other arrangements can be made.

1.8 LIMITED WARRANTY: Supply manufacturer’s standard ten-year limited warranty on frame and 15 year limited warranty on powder coat paint system.

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PART 2 PRODUCTS

2.1 ACCEPTABLE MANUFACTURER.

1. CXT Gunnison Style Left Hand Floor Plan Single vault toilet or approved equal. Walls shall have Barnwood textured walls with a Sand Beige color. Roof shall have a Cedar Shake textured with Nuss Brown color or approved equal.

2. Toilet Options: Solar Light Kit, Heavy Duty Vent Stack

Screen, Unisex signage, Vents on Rear Wall, Two (2) standard 2 roll stainless steel toilet paper dispenser, Schlage Privacy Latch ADA Handle & two tone color paint touch-up kit.

2.3 MATERIALS

A. Concrete

1. The concrete mix design will be designed to ACI 211.1 to produce concrete of good workability.

2. Concrete will contain a minimum of 610 pounds of cement per cubic yard. Cement will be a low alkali type I or III conforming to ASTM C-150.

3. Coarse aggregates used in the concrete mix design will conform to ASTM C33 with the designated size of coarse aggregate #67.

4. Minimum water/cement ratio will not exceed 0.45. Slump will not exceed 4”. Slump may be increased using chemical admixtures provided that the concrete maintains same or lower water to cement ratio and does not exhibit segregation. Slump will never exceed 9”.

5. Air-entraining admixtures will conform to ASTM C260.

6. Water reducing admixtures will conform to ASTM C494, Other admixtures will not be used without customer approval.

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B. Colored Concrete

1. Color additives will conform to ASTM C979. A

12”x12”x1” color sample will be available for customer approval.

2. The following will contain colored concrete:

a. Toilet building roof panels

b. Building walls

c. Screen panels

3. The same brand and type of color additive will be used throughout the manufacturing process.

4. All ingredients will be weighed and the mixing operation will be adequate to ensure uniform dispersion of the color.

C. Cold Weather Concrete

1. Cold weather concrete placement will be in accordance with ACI 306.

2. Concrete will not be placed if ambient temperature is expected to be below 35 degrees F.

3. During the curing period unless heat is readily available to maintain the surface temperature of the concrete at least 45 degrees F. 3. Materials containing frost or lumps of frozen materials will not be used.

D. Hot Weather Concrete

1. The temperature of the concrete will not exceed 95 degrees F. at the time of placement. When the ambient reaches 90 degrees F. the concrete will be protected with moist covering.

E. Concrete Reinforcement

1. All reinforcing steel will conform to ASTM A615. All welded wire fabric will conform to ASTM A185.

2. All reinforcement will be new, free of dirt, oil, paint, grease, loose mill scale and loose or thick rust when placed.

3. Details not shown of drawings or specified will be to

ACI318.

4. Steel reinforcement will be centered in the cross-sectional area of the walls and will have at least 1” of cover on the under surface of the floor and roof.

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5. The maximum allowable variation for center-center spacing of reinforcing steel will be ½”.

6. Full lengths of reinforcing steel will be used when possible. When splices are necessary on long runs;

splices will be alternated from opposite sides of the components for adjacent steel bars. Lap bars #4 or smaller a minimum of 12”. Lap bars larger than #4 a minimum of 24 bar diameters.

7. Reinforcing bars will be bent cold. No bars partially embedded in concrete will be field bent unless approved by the customer.

F. Sealers and Curing Compounds

1. Curing compounds, if used, will be colorless, complying with ASTM C309, type I or 1-D.

2. Weatherproofing sealer for exterior of building will be a clear water repellent penetrating sealer.

G. Caulking, Grout, Adhesive and Sealer

1. Caulking service temperatures from -40 to +194 degrees Fahrenheit.

2. Interior and exterior joints will be caulked with a paintable polyurethane sealant.

3. Grout will be a non-shrink type and will be painted to match the color of surrounding concrete as nearly as possible.

4. Cement base coating is formulated with a very fine aggregate system and is a built in bonding agent.

H. Paint

1. All paints and materials will conform to all Federal specifications or be similar “top-of-the-line-components”. Paints will not contain more than .06 percent by weight of lead.

2. Type of paints for toilets

a. Inside concrete surfaces

I Interior floors will be a 2 component, catalyzed, water borne polyamide epoxy with a micronized polymer additive to provide uniform slip resistant texture. The color will be gray.

II Interior walls and ceilings will be a modified acrylic, water repellent

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b. Metal surfaces both inside and out

I DTM ALKYD

c. Exterior concrete surfaces I Exterior slab will be clear sealer II Exterior walls and roof will be a water repellent penetrating stain in the same color as the walls or roof followed by a clear acrylic anti-graffiti sealer.

I. Grab bars

1. Grab bars will be 18 gauge, type 304 stainless steel with 1-1/2” clearance. Grab bars will each be able to withstand 300 pound top loading.

J. Toilet Paper Dispenser

1. Dispenser will be constructed of ¼” thick, type 304 stainless steel. Dispenser will be capable of holding two (2) standard rolls of toilet paper. Toilet paper holder fastening system will be able to withstand 300 pound top loading.

K. Steel Doors

1. Doors will be flush panel type 1-3/4” thick, minimum 16 gauge galvanized steel, top painted with DTM ALKYD.

2. Door frames will be knockdown or welded type, single rabbet, minimum 16 gauge prime coated steel top painted with DTM ALKYD, width to suit wall thickness. Three (3) rubber door silencers will be provided on latch side of frame.

L. Door Hinges

1. Door hinges will be 3 per door with dull chrome plating 4-1/2”x4-1/2”, adjustable tension, automatic-closing for each door.

M. Lockset

1. Lockset will meet ANSI A156.2 Series 4000, Grade 1 cylindrical lockset for exterior door.

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2. Lever handle both inside and out.

3. Either handle operates latch unless outside handle is locked by inside push-button.

4. Push-button will automatically release when inside lever handle is turned or door is closed.

5. Emergency slot on exterior so door can be unlocked from the outside with a coin, screwdriver and etc.

6. Inside lever always active.

7. U.S. 26D finish.

N. Dead Bolt

1. Deadbolt will be a Lori Lock standard model with a double cylinder, 2 ¾” backset, and US26D finish. The cylinder will be a standard 11/8” Schlage Mortise cylinder with compression ring and 626 finish.

O. Door Stop

1. Doorstop will be a dome style stop meeting ANSI 156.16.

P. Double Coat Hook

1. Coat hook will be 304 stainless steel 16 gauge (1.5mm), formed construction with a satin finish and have 3/16”x 7/8” nail in anchor. Upper hook will extend at least 2- 1/2” inches from the wall. Lower hook will extend at least 1-1/4” from the wall.

Q. Door Sweep

1. Door sweep will be provided at the bottom of door and will be an adjustable brush type.

R. Wall Vent

1. Wall vent will be cast into the concrete wall. The units’ frame will be C3 x 4.1 channel steel. The louver frame and louvers will be 19 gauge zinc coated steel with baked enamel finish. Vent to come with insect screen.

S. Windows and Vault Cleanout Cover

1. Windows and cleanout cover frames will be constructed from steel.

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2. Window glazing will be 3/16” thick translucent pebble finished mar-resistant Lexan.

3. Plate for vault cleanout cover will be ¼” thick diamond plate steel. Poly or PVC products will not be accepted.

4. Lid will be hinged and configured so that it can be locked with a padlock. A gasket will be provided across the entire width and length of the lid to provide an airtight seal.

5. Cleanout that penetrate the vault walls, bottoms, or vault liners will not be accepted.

T. Vault Liner

1. The vault liner shall be made from a single sheet black ABS/750 virgin plastic and can hold up to 1,000 gallons of waste or 15,000 uses per vault. The initial sheet thickness shall be a minimum .375. Final stamped thickness shall be a minimum .060. The vault liner shall have molded dovetail embeds to attach the liner to the concrete walls of the vault. The vault liner shall have two J-rails to attach the liner to the bottom of the vault. Vaults with the ABS liner shall be warranted against leaks for a period of seven years.

U. Placing and Consolidating Concrete

1. Concrete will be consolidated by the use of mechanical vibrators. Vibration will be sufficient to accomplish compaction but not to the point that segregation occurs.

V. Finishing Concrete

1. Concrete Interior floor and exterior slabs will be floated and troweled. A light broom finish will be applied to the exterior slabs.

2. All exterior building walls and exterior screen walls will be a barnwood texture (optional textures available).

3. All exterior surfaces of the roof panels will be cast to simulate a cedar shake roof. The underside of the overhang will have a smooth finish (other roof textures available).

W. Cracks and Patching

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1. Cracks in concrete components which are judged to affect the structural integrity of the building will be rejected.

2. Small holes, depressions and air voids will be patched with a suitable material. The patch will match the finish and texture of the surrounding surface.

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

X. Curing and Hardening Concrete

1. Concrete surfaces will not be allowed to dry out from exposure to hot, dry weather during initial curing period.

2.5 FABRICATION

A. Structural Joints

1. Wall components will be joined together with two welded plate pairs at each joint. Each weld plate will be 6” long and located one pair in the top quarter and one pair in the bottom quarter of the seam. Weld plates will be anchored into the concrete panel and welded together with a continuous weld. The inside seams will be a paintable caulk. The outside seams will use a caulk in a coordinating building color or clear.

2. Walls and roof will be joined with weld plates, 3”x 6”, at each building corner.

3. The joint between the floor slab and walls will be joined with a grout mixture on the inside, a matched colored caulk on the outside and two weld plates 6” long per wall.

B. Painting/Staining

1. An appropriate curing time will be allowed before paint is applied to concrete.

2. Some applications may require acid etching. A 30% solution of hydrochloric acid will be used, flushed with water and allowed to thoroughly air dry.

3. Painting will not be done outside in cold, frosty or damp weather.

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4. Painting will not be done outside in winter unless the temperature is 50 degrees F. or higher.

5. Painting will not be done in dusty areas.

6. Schedule of finishes

a. Inside concrete surfaces I Inside floors will be 1 coat of 1-part water based epoxy with a silica sand suspension to provide uniform texture. II Interior walls and ceilings will be 2 coats of a modified acrylic, water repellent penetrating stain, followed by 1 coat of clear sealer.

b. Metal surfaces both inside and out 2 coats of DTM

ALKYD

c. Exterior concrete surfaces

i. Exterior slab will be 1 coat of clear sealer

ii. Exterior walls will be 2 coats of water repellent penetrating stain in the same color as the walls or roof followed by 1 coat of clear acrylic anti-graffiti sealer.

2.6 TESTING

A. CONCRETE

1. Testing will only be performed by qualified individuals who have been certified ACI Technician Grade 1. Sampling will be in accordance with ASTM C172. The slump of the concrete will be performed on the first batch of concrete in accordance with ASTM C143. This slump will be in the 3”- 4” range. Slump may be increased using chemical admixtures provided that the concrete maintains same or lower water to cement ratio and does not exhibit segregation. Slump will never exceed 9”.

2. The air content of the concrete will be checked per ASTM C231 on the first batch of concrete. The air content will be in the range of 5.5% +/- 1%.

3. The compressive strength of the cylinders will be tested to ASTM C39. We will make one (1) cylinder for release, one (1) for 7 days and one (1) for 28 days. The release must be a minimum strength of 2500 psi, the 7-day must be a minimum of 4500 psi and the 28-day must be a minimum of 5000 psi.

PART 3.1 INSTALLATION

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A. Scope of Work

Work specified under this Section includes full installation of precast concrete vault toilet.

B. Materials

1. Bedding materials to be sand or 3/8” minus crushed or screened aggregate.

2. Caulk between vault and toilet floor to be 1” x 1” Butyl tape.

C. Access to Site

1. New Fork Campground Facility:

Delivery shall be made on normal highway trucks and trailers. The site is located approximately 21 miles South of Pinedale, Wyoming on State Hwy 191 to intersection of 191/351 and approximately 11 miles East on HWY 351. Access to the site will be on paved roads to the facility. See attached Location Map.

D. Excavation and Elevation

1. Comply with all applicable OSHA Standards for excavation.

2. Excavate for the installation of the toilet vault to a depth that will allow the structure site to be free draining after installation is completed. Allow for a 2” leveling course beneath the toilet vault.

Stockpile topsoil in a separate pile at sites.

3. Finish floor elevation will be 3-4 inches above finished grade measured at the front (entrance) of the exterior slab unless otherwise approved by the Government. Ideally, the back of the building should be slightly higher to allow water to freely drain out of the toilet rooms. The Government will specify a finish floor elevation for buildings at the site of a single control point prior to instillation. The contractor will install buildings at these sites with the floor elevation within a plus or minus 0.05 feet of the specified floor elevation.

4. No excavation will be left open more than one day unless otherwise approved by the Government.

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5. All excavations left open overnight will be fenced with wire mesh or plastic mesh fence secured to steel posts all around the excavation.

a. The bottom of the fence will generally follow the contour of the ground.

b. Maximum spacing of the steel posts will be ten feet.

c. Minimum height of the fence will be 36 inches.

E. Backfill and Compaction

1. Compact the natural ground at the bottom of the vault excavation with a minimum of three passes with a whacker-type mechanical compactor or equivalent approved by the Government.

2. Install sand or aggregate bedding material for leveling course if needed. Compact leveling course with multiple pass with a whacker-type mechanical tamper or equivalent approved by the customer. Grade leveling course so there will be no high spots in the middle of the vault bottom. Compact with a second pass with a whacker or approved equivalent tamper.

3. Set vault in place. Backfill around the structure.

Use excavated material for backfill except that rocks larger than six inches in maximum dimension shall not be placed within six inches of the exterior vault walls.

4. Fill, adjacent to the building entry, will have excavated material placed in eight inch loose lifts and compacted with a minimum of two passes with a whacker-type mechanical compactor of equivalent approved by the Government.

F. Placing Vault Toilet

1. Vault toilet is to be placed or set by the manufacture.

2. All Hauling permits, freight charges, & crane charges are the responsibility of the manufacturer.

3. Manufacture to install exhaust pipe & necessary polyurethane caulk and gaskets.

G. Vault Toilet Riser and Accessories

1. Polyurethane caulk will be applied between toilet riser flange and concrete floor before the toilet riser is installed.

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H. Exhaust Pipe Installation

1. After exhaust pipe is installed, seal around pipe at top and underside of roof with polyurethane caulk. Seal around pipe at top of slab will be accomplished by using polyurethane caulk.

END OF SECTION