Att 2 Sunshine_Ouray Toilet Replacement_Specs.pdf

GAOA Sunshine/Ouray Toilets Replacement

List of Specifications

Division 1 – General Requirements

Section 010250 - Definition of Bid Items and Measurement and Payment 2

Division 2 – Existing conditions

Section 024116 - Structure Demolition 10

Division 3 Concrete

Section 031000 - Concrete Forming and Accessories 16

Section 032000 - Concrete Reinforcing 21

Section 033000 - Cast-in-Place Concrete 27

Division 13 Special Construction

Section 13120 – Precast Vault Toilet 47

Section 13129 – Installation of Precast Vault Toilets Buildings 64

SECTION 010250

DEFINITION OF BID ITEMS

AND

MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.1 SUMMARY

A. The intent of this section is to explain, in general; what is and what is not included in a bid item; the limits or cut-off points where one bid item ends and another begins; and method of measurements and basis of payment for work items listed in the Bid Item Schedule.

B. Work:

1. Furnishing all labor, materials, equipment, and other incidentals necessary to successfully complete the project or any portion of it, and carrying out all duties and obligations imposed by the contract on the Contractor.

2. For each individual item listed here and in the Schedule of Items, payment shall be full compensation for all work related to the particular item in accordance with these specifications, as shown on the drawings, and as staked in the field.

3. Measurement and payment for contract work shall be made only for and under those pay items included in the Schedule of Items. All other work and materials shall be considered incidental or as included in the payment for items shown.

1.2 DETERMINATION OF QUANTITIES

A. The contractor shall perform, or cause to be performed, all measurement of quantities of materials incorporated into the work processes that are to be measured under the provisions of the contract.

B. Quantity Measurements:

1. The Contractor shall make all measurements for computation of quantities for all work items except those specified for payment by Designed Quantity (DQ) or Lump Sum Quantity (LSQ).

2. The contractor shall compute the quantities for periodic progress payments; the Contracting Officer shall compute the quantities for the final payment based on measurements taken by the Contractor.

3. All Contractor measurements are subject to verification.

4. The Contractor shall submit all field notes, calculation sheets, and other data used to determine quantities.

5. The Contractor shall certify in writing as to the accuracy of the measurements and computations submitted.

C. The following measurements and calculations are used to determine contract quantities.

1. For individual construction items, longitudinal and lateral measurements for area computations shall be made horizontally or corrected to horizontal measurement unless otherwise specified.

Measurements for geotextiles, netting and erosion control blankets shall be along slope lines.

2. The average end area method shall be used to compute volumes of excavation or embankment. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three dimensional methods.

3. Structures shall be measured according to neat lines shown on the drawings or as altered by the Contracting Officer, in writing, to fit field conditions.

4. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, and under drains, measurements shall be made parallel to the base or foundation upon which the structures are placed. Pipes shall be measured along center of invert.

5. For aggregates weighed for payment, the tonnage shall not be adjusted for moisture content, unless otherwise provided for.

6. For standard manufactured items—such as fence, wire, plates, rolled shapes, pipe conduits— identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer’s tolerances shall be accepted.

1.3 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

B. Acre: 43,560 square feet. Make longitudinal and transverse measurements for are computations horizontally. Do not make deductions from the area computation for individual exclusions having an area of 500 square feet or less.

C. Cubic Yard: A measurement computed by one of the following methods:

1. Excavation, Embankment, or Borrow. The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

2. Material in Place or Stockpile. The measurement computed using the dimensions of the in-place material.

3. Material in the Delivery Vehicle. The measurement computed using measurements of material in the hauling vehicles at the point of delivery. Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

D. Each: One complete unit, which may consist of one or more parts.

E. Linear Foot: Linear feet measured horizontally.

F. Lump Sum: Do not measure directly. The bid amount is complete payment for all work described in the contract and necessary to complete the work for that item.

G. Square Yard: 9 square feet. Longitudinal and transverse measurements for area computations will be made horizontally. Do not make deductions from the area computation for individual fixtures having an area of 9 square feet or less.

H. Ton: 2000 pounds. No adjustment in contract price will be made for variations in quantity due to differences in the specific gravity or moisture content. Use net certified scale weights, or weights based on certified volumes.

I. Where tolerances are shown in the contract, they are intended to define reasonably close conformity.

Adjustments of horizontal or vertical alignment, within the tolerances specified in this contract, or shifts of balance points up to 100 feet shall be made by the contractor as necessary to produce the designed roadway sections and to balance earthwork. Such adjustments shall not be considered as “Changes.”

PART 2 - METHOD OF MEASUREMENT

2.1 GENERAL

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

B. DESIGNED QUANTITIES (DQ)

1. These quantities denote the final number of units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units shown in the Schedule of Items may be authorized under any of the following conditions:

a. As a result of changes in the work authorized by the Contracting Officer.

b. As a result of the Contracting Officer determining that errors exist in the original design that causes a pay item quantity to change by 15 percent or more.

c. As a result of the Contractor submitting to the Contracting Officer a written request showing evidence of errors in the original design that cause a pay item quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

C. ACTUAL QUANTITIES (AQ)

1. These estimated quantities which are determined from actual measurements of completed work.

D. LUMP SUM QUANTITIES (LSQ)

1. These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall be measured complete and in-place.

PART 3 – DEFINITION OF BID ITEMS

3.1 SCHEDULE OF ITEMS

A. The project Schedule of Items includes several sections to organize the bid items into Base Bid Items and Optional Bid Items. When a pay item is described as a Base Bid Item, the description will be the same when that item or a similar item is included as an Optional Bid Item. Contractor shall provide item pricing for all items listed in the Schedule of Items. Contract award will be made for all Base Bid Items. Those items listed as Optional Bid Items will be awarded based on available project funding.

The Optional Bid Items are not listed in priority order and may be awarded in any combination of individual items.

BASE BID ITEMS

Bid Item No. 1 – Mobilization

1. Measurement: This item is measured as a lump sum quantity.

a. This bid item consists of all preparatory work and operations necessary for the movement of personnel, equipment, and incidentals to the project sites, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project sites. This item includes engineering or surveying consultant services as needed, mobilization to multiple sites, concrete testing, and warning/safety devices. This bid item shall include contractor overhead and profit, overhead and profit is not paid for work not performed.

b. Payment shall be made at the contract lump-sum price.

c. Progress payment shall be made as follows:

1) When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent or the original contract amount, whichever is less, shall be paid.

2) When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, shall be paid.

3) Upon completion of all work on the project, any unpaid amount for mobilization shall be paid.

4) The total of all payments, including bonding, shall not exceed the original contract amount for this item.

Bid Item No. 2 – Purchase and Installation - 5102006 New Toilet Sunshine CG #1

1. Measurement: This item is measured as a design quantity.

d. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to acquisition and installation of new prefabricated SST building, preparing site for construction, concrete pad (approx. 240 sqft.)as specified, excavation, bedding material and placement of fill material, meeting final grade requirements, meeting compaction requirements as specified and shown in the drawings. This bid item includes contractor overhead and profit, overhead and profit are not paid for work not performed.

e. Building shall conform to the Standard Design Options as specified in the drawings:

1) Roof Texture- Simulated Wood Shake

2) Wall Exterior Texture- Simulated Board & Batten

3) Color shall be approved by CO prior to ordering

4) Door Size- 3’ by 6’ 8”

5) Signs- Unisex and Accessible Symbols

6) Vault Size-1000 Gallons Nominal Capacity

7) Vault Access Cover- Locking cover with Watertight Gasket Seal

8) Vault Vent Pipe Screen- Bird Screen to be installed on top of vault vent pipes with approx. 0.5” by 1” opening size.

9) Building Wall Vents- Installed facing prevailing wind.

Bid Item No. 3 – Purchase and Installation - 5102007 New Toilet Sunshine CG #2

1. Measurement: This item is measured as a design quantity.

f. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to acquisition and installation of new prefabricated SST building, preparing site for construction, concrete pad (approx. 240 sqft.)as specified, excavation, bedding material and placement of fill material, meeting final grade requirements, meeting compaction requirements as specified and shown in the drawings. This bid item includes contractor overhead and profit, overhead and profit are not paid for work not performed.

g. Building shall conform to the Standard Design Options as specified in the drawings:

1) Roof Texture- Simulated Wood Shake

2) Wall Exterior Texture- Simulated Board & Batten

3) Color shall be approved by CO prior to ordering

4) Door Size- 3’ by 6’ 8”

5) Signs- Unisex and Accessible Symbols

6) Vault Size-1000 Gallons Nominal Capacity

7) Vault Access Cover- Locking cover with Watertight Gasket Seal

8) Vault Vent Pipe Screen- Bird Screen to be installed on top of vault vent pipes with

9) Building Wall Vents- Installed facing prevailing wind.

Bid Item No. 4 – Purchase and Installation - 6105002 New Toilet Silver Jack PG

h. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to acquisition and installation of new prefabricated SST building, preparing site for construction, concrete pad (approx. 240 sqft.)as specified, excavation, bedding material and placement of fill material, meeting final grade requirements, meeting compaction requirements as specified and shown in the drawings. This bid item includes contractor overhead and profit, overhead and profit are not paid for work not performed.

i. Building shall conform to the Standard Design Options as specified in the drawings:

1) Roof Texture- Simulated Wood Shake

2) Wall Exterior Texture- Simulated Board & Batten

3) Color shall be approved by CO prior to ordering

4) Door Size- 3’ by 6’ 8”

5) Signs- Unisex and Accessible Symbols

6) Vault Size-1000 Gallons Nominal Capacity

7) Vault Access Cover- Locking cover with Watertight Gasket Seal

8) Vault Vent Pipe Screen- Bird Screen to be installed on top of vault vent pipes with

Bid Item No. 5 – Purchase and Installation - 6304002 New Toilet Little Cimarron/Alpine TH

j. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to acquisition and installation of new prefabricated SST building, preparing site for construction, concrete pad (approx. 240 sqft.)as specified, excavation, bedding material and placement of fill material, meeting final grade requirements, meeting compaction requirements as specified and shown in the drawings. This bid item includes contractor overhead and profit, overhead and profit are not paid for work not performed.

k. Building shall conform to the Standard Design Options as specified in the drawings:

1) Roof Texture- Simulated Wood Shake

2) Wall Exterior Texture- Simulated Board & Batten

3) Color shall be approved by CO prior to ordering

4) Door Size- 3’ by 6’ 8”

5) Signs- Unisex and Accessible Symbols

6) Vault Size-1000 Gallons Nominal Capacity

7) Vault Access Cover- Locking cover with Watertight Gasket Seal

8) Vault Vent Pipe Screen- Bird Screen to be installed on top of vault vent pipes with

Bid Item No. 6 – Demolition - 5102002 Toilet Sunshine CG North (Across from site #3)

l. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to complete demolition and removal of existing toilet building including the vault and existing concrete pad, pump vault before starting demolition, disconnection of existing utilities (cap water line and disconnect electricity from main panel, if applicable), excavation, fill material and placement of fill material as specified and shown in the drawings. This bid item includes contractor overhead and profit, overhead and profit are not paid for work not performed.

Bid Item No. 7 – Demolition - 5102003 Toilet Sunshine CG South (Across from site #12)

m. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to complete demolition and removal of existing toilet building including the vault and existing concrete pad, pump vault before starting demolition, disconnection of existing utilities (cap water line and disconnect electricity from main panel, if applicable), excavation, fill material and placement of fill material as specified and shown in the

Bid Item No. 8 – Demolition - 6105001 Toilet Silver Jack PG

n. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to complete demolition and removal of existing toilet building including the vault and existing concrete pad, pump vault before starting demolition, disconnection of existing utilities (cap water line and disconnect electricity from main panel, if applicable), excavation, fill material and placement of fill material as specified and shown in the

Bid Item No. 9 – Demolition – 6304001 Little Cimarron/Alpine TH

o. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to complete demolition and removal of existing toilet building including the vault and existing concrete pad, pump vault before starting demolition, disconnection of existing utilities (cap water line and disconnect electricity from main panel, if applicable), excavation, fill material and placement of fill material as specified and shown in the

OPTIONAL BID ITEMS

The following are optional bid items and will only be included in the contract if funds are available at the time of bid opening and determined in the best interest of the Government.

Optional Bid Item No. 10 – Purchase and Installation - 6109003 New Toilet Iron Springs CG

1. Measurement: This item is measured as a design quantity.

p. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to acquisition and installation of new prefabricated SST building, preparing site for construction, concrete pad (approx. 240 sqft.)as specified, excavation, bedding material and placement of fill material, meeting final grade requirements, meeting compaction requirements as specified and shown in the drawings. This bid item includes contractor overhead and profit, overhead and profit are not paid for work not performed.

q. Building shall conform to the Standard Design Options as specified in the drawings:

1) Roof Texture- Simulated Wood Shake

2) Wall Exterior Texture- Simulated Board & Batten

3) Color shall be approved by CO prior to ordering

4) Door Size- 3’ by 6’ 8”

5) Signs- Unisex and Accessible Symbols

6) Vault Size-1000 Gallons Nominal Capacity

7) Vault Access Cover- Locking cover with Watertight Gasket Seal

8) Vault Vent Pipe Screen- Bird Screen to be installed on top of vault vent pipes with approx. 0.5” by 1” opening size.

9) Building Wall Vents- Installed facing prevailing wind.

Optional Bid Item No. 11 – Demolition - 6109001 Toilet Iron Springs CG

1. Measurement: This item is measured as a design quantity.

r. Payment: The contract unit shown in the Schedule of Items shall include all materials, equipment, labor incidentals required to perform all operations necessary but is not limited to complete demolition and removal of existing toilet building including the vault and existing concrete pad, pump vault before starting demolition, disconnection of existing utilities (cap water line and disconnect electricity from main panel, if applicable), excavation, fill material and placement of fill material as specified and shown in the

4. END OF SECTION 010250

SECTION 024116

STRUCTURE DEMOLITION

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Demolition and removal of buildings (including vaults):

a. 5102003 Toilet Sunshine CG North

b. 5102002 Toilet Sunshine CG South

c. 6105001 Toilet Silver Jack PG

d. 6304001 Toilet Little Cimarron/Alpine TH

e. Optional Bid Item: 6109001 Toilet Iron Springs CG

2. Disconnecting, capping or sealing, and abandoning in-place site utilities.

B. Related Requirements:

1. Section 010250 “Definition of Bid Items and Measurement and Payment”

1.3 DEFINITIONS

A. Remove: Detach items from existing construction and dispose of them off-site unless indicated to be salvaged.

1.4 MATERIALS OWNERSHIP

A. Unless otherwise indicated, demolition waste becomes property of Contractor.

B. Historic items, relics, antiques, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, and other items of interest or value to Owner that may be uncovered during demolition remain the property of Owner.

1. Carefully salvage in a manner to prevent damage and promptly return to Owner.

1.5 PREINSTALLATION MEETINGS

A. Pre-demolition Conference: Conduct conference at projects site.

1. Inspect and discuss condition of construction to be demolished.

2. Review and finalize building demolition schedule and verify availability of demolition personnel, equipment, and facilities needed to make progress and avoid delays.

3. Review and finalize protection requirements and safety.

4. Review procedures for noise control and dust control.

5. Review procedures for protection of adjacent features

1.6 INFORMATIONAL SUBMITTALS

A. Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed for protecting property, for environmental protection, and for dust control. Indicate proposed locations and construction of barriers.

B. Schedule of Building Demolition Activities: Indicate the following:

1. Detailed sequence of demolition work, with starting and ending dates for each activity.

2. Pumping of vaults.

3. Temporary interruption of utility services.

4. Shutoff and capping of utility services.

C. Pre-demolition Photographs: Show existing conditions of adjoining construction and site improvements, including finish surfaces, that might be misconstrued as damage caused by salvage and demolition operations.

1.7 CLOSEOUT SUBMITTALS

A. Inventory: Submit a list of items that have been removed.

1.8 FIELD CONDITIONS

A. Buildings to be demolished will be vacated and their use discontinued before start of the Work.

B. Campground area will be occupied. Conduct building demolition so operations of occupied campsites will not be disrupted.

1. Provide not less than 72 hours' notice of activities that will affect operations of adjacent campsites.

2. Maintain access to existing walkways, exits, roads and other facilities used by occupants of adjacent campsites, without written approval from the Contracting Officer.

C. Conditions existing at time of inspection for bidding purpose will be maintained by the Forest as far as practical.

1. Before building demolition, Owner will remove any item to be kept by the Forest.

D. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

1. Hazardous materials will be removed by Forest personnel before start of the Work.

2. If materials suspected of containing hazardous materials are encountered, do not disturb;

immediately notify Contracting Officer. Hazardous materials will be removed by Forest personnel under a separate contract.

E. On-site storage or sale of removed items or materials is not permitted.

1.9 COORDINATION

A. Arrange demolition schedule so as not to interfere with campgrounds operations.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Regulatory Requirements: Comply with governing EPA notification regulations before beginning demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

B. Standards: Comply with ANSI/ASSE A10.6 and NFPA 241.

2.2 SOIL MATERIALS

A. Satisfactory Soils: Provide clean fill material as needed to fill voids resulting from demolition operations (at sites where new building will be located at a different location from the demoed buildings).

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped before starting demolition operations.

B. Pump vaults before proceeding with building demolition operations.

3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Utilities to be Disconnected: Locate, identify, disconnect, and seal or cap off utilities serving buildings and structures to be demolished.

1. If removal, relocation, or abandonment of utility services will affect adjacent occupied buildings, then provide temporary utilities that bypass buildings and structures to be demolished and that maintain continuity of service to other buildings and structures.

2. Cut off pipe or conduit a minimum of 24 inches below grade. Cap, valve, or plug and seal remaining portion of pipe or conduit after bypassing according to requirements of authorities having jurisdiction.

3. Do not start demolition work until utility disconnecting and sealing have been completed and verified in writing.

3.3 PROTECTION

A. Existing Facilities: Protect adjacent walkways, roads, camping sites, and other facilities during demolition operations.

B. Temporary Shoring: Provide and maintain interior and exterior shoring, bracing, or structural support to preserve stability and prevent unexpected movement or collapse of construction being demolished.

1. Strengthen or add new supports when required during progress of demolition.

C. Existing Utilities to Remain: Maintain utility services to remain and protect from damage during demolition operations.

1. Maintain water service to adjacent water hydrants (if applicable).

D. Temporary Protection: Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction and as indicated.

1. Protect existing site improvements, appurtenances, and landscaping to remain.

2. Erect a plainly visible fence around disturbed areas

3. Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent facilities to remain.

4. Provide protection to ensure safe passage of people around building demolition area and to and from occupied portions of adjacent buildings and structures.

E. Remove temporary barriers and protections where hazards no longer exist. Where open excavations or other hazardous conditions remain, leave temporary barriers and protections in place.

3.4 DEMOLITION, GENERAL

A. General: Demolish indicated buildings completely. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Do not use cutting torches until work area is cleared of flammable materials. Maintain portable fire-suppression devices during flame-cutting operations.

2. Maintain fire watch during and for at least 24 hours after flame-cutting operations.

3. Maintain adequate ventilation when using cutting torches.

4. Locate building demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

B. Site Access and Temporary Controls: Conduct building demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

1. Do not close or obstruct streets, walks, walkways, or other adjacent occupied or used facilities without permission from the Contracting Officer. Provide alternate routes around closed or obstructed trafficways if required by authorities having jurisdiction.

2. Use water mist and other suitable methods to limit spread of dust and dirt. Comply with governing environmental-protection regulations. Do not use water when it may damage adjacent construction or create hazardous or objectionable conditions, such as ice, flooding, and pollution.

C. Explosives: Use of explosives is NOT permitted.

3.5 DEMOLITION BY MECHANICAL MEANS

A. Proceed with demolition of structural framing members systematically, from higher to lower level.

Complete building demolition operations above each floor or tier before disturbing supporting members on the next lower level.

B. Remove debris from elevated portions of the building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

1. Remove structural framing members and lower to ground by method suitable to minimize ground impact and dust generation.

C. Below-Grade Construction: Demolish foundation walls, vaults and other below-grade construction.

1. Completely remove below-grade construction, including vaults, basements, foundation walls, and footings.

3.6 PLUMBING DEMOLITION

A. Disconnect, demolish, and remove plumbing systems, equipment, and components indicated to be removed.

1. Piping to Be Removed: Remove portion of piping indicated to be removed and cap or plug remaining piping with same or compatible piping material.

2. Piping to Be Abandoned in Place: Drain piping and cap or plug piping with same or compatible piping material. Remove construction to be abandoned in place to a minimum of 12 inches below grade.

3. Equipment to Be Removed: Disconnect and cap services and remove equipment.

B. If pipe, insulation, or equipment to remain is damaged in appearance or is unserviceable, remove damaged or unserviceable portions and replace with new products of equal capacity and quality.

3.7 SITE RESTORATION

A. Below-Grade Areas: Completely fill below-grade areas and voids resulting from building demolition operations with satisfactory soil materials.

B. Site Grading: Uniformly rough grade area of demolished construction to a smooth surface, free from irregular surface changes. Provide a smooth transition between adjacent existing grades and new grades.

3.8 REPAIRS

A. Promptly repair damage to adjacent buildings caused by demolition operations.

3.9 DISPOSAL OF DEMOLISHED MATERIALS

A. Remove demolition waste materials from Project site and dispose of them in an EPA-approved construction and demolition waste landfill acceptable to authorities having jurisdiction.

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

B. Do not burn demolished materials.

3.10 CLEANING

A. Clean adjacent features and improvements of dust, dirt, and debris caused by building demolition operations. Return adjacent areas to condition existing before building demolition operations began.

1. Clean roadways of debris caused by debris transport.

END OF SECTION 024116

SECTION 031000

CONCRETE FORMING AND ACCESSORIES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Form-facing material for cast-in-place concrete.

2. Form liners.

3. Insulating concrete forms.

4. Shoring, bracing, and anchoring.

B. Form-Facing Material: Temporary structure or mold for the support of concrete while the concrete is setting and gaining sufficient strength to be self-supporting.

C. Formwork: The total system of support of freshly placed concrete, including the mold or sheathing that contacts the concrete, as well as supporting members, hardware, and necessary bracing.

D. This section is only applicable to the construction of concrete pad or sidewalk.

E. NOT for use for construction of SST building, vault or other parts related to the prefabricated concrete SST building.

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at project site.

1. Review the following:

a. Special inspection and testing and inspecting agency procedures for field quality control.

b. Construction, movement, contraction, and isolation joints

c. Forms and form-removal limitations.

d. Shoring and reshoring procedures.

e. Anchor rod and anchorage device installation tolerances.

1.4 QUALITY ASSURANCE

A. Testing and Inspection Agency Qualifications: An independent agency, qualified in accordance with ASTM C1077 and ASTM E329 for testing indicated.

B. Mockups: Formed surfaces to demonstrate typical joints, surface finish, texture, tolerances, and standard of workmanship.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Concrete Formwork: Design, engineer, erect, shore, brace, and maintain formwork, shores, and reshores in accordance with ACI 301 (ACI 301M), to support vertical, lateral, static, and dynamic loads, and construction loads that might be applied, until structure can support such loads, so that resulting concrete conforms to the required shapes, lines, and dimensions.

1. Design wood panel forms in accordance with APA's "Concrete Forming Design/Construction Guide."

2. Design formwork to limit deflection of form-facing material to 1/240 of center-to-center spacing of supports.

2.2 FORM-FACING MATERIALS

A. As-Cast Surface Form-Facing Material:

1. Provide continuous, true, and smooth concrete surfaces.

2. Furnish in largest practicable sizes to minimize number of joints.

3. Acceptable Materials: As required to comply with Surface Finish designations specified in

Section 033000 "Cast-In-Place Concrete, and as follows:

a. Plywood, metal, or other approved panel materials.

b. Exterior-grade plywood panels, suitable for concrete forms, complying with DOC PS 1, and as follows:

1) APA Structural 1 Plyform, B-B or better; mill oiled and edge sealed.

2.3 RELATED MATERIALS

A. Dovetail Anchor Slots: Hot-dip galvanized-steel sheet, not less than 0.034 inch (0.85 mm) thick, with bent tab anchors. Temporarily fill or cover face opening of slots to prevent intrusion of concrete or debris.

B. Chamfer Strips: Wood, metal, PVC, or rubber strips, 3/4 by 3/4 inch (19 by 19 mm), minimum.

C. Rustication Strips: Wood, metal, PVC, or rubber strips, kerfed for ease of form removal.

D. Form-Release Agent: Commercially formulated form-release agent that does not bond with, stain, or adversely affect concrete surfaces and does not impair subsequent treatments of concrete surfaces.

PART 3 - EXECUTION

3.1 INSTALLATION OF FORMWORK

A. Comply with ACI 301 (ACI 301M).

B. Construct formwork, so concrete members and structures are of size, shape, alignment, elevation, and position indicated, within tolerance limits of ACI 117 (ACI 117M) and to comply with the Surface Finish designations specified in Section 033000 "Cast-In-Place Concrete" for as-cast finishes.

C. Limit concrete surface irregularities as follows:

1. Surface Finish-1.0: ACI 117 Class D, 1 inch.

D. Construct forms tight enough to prevent loss of concrete mortar.

1. Minimize joints.

2. Exposed Concrete: Symmetrically align joints in forms.

E. Construct removable forms for easy removal without hammering or prying against concrete surfaces.

1. Provide crush or wrecking plates where stripping may damage cast-concrete surfaces.

2. Provide top forms for inclined surfaces steeper than 1.5 horizontal to 1 vertical.

3. Install keyways, recesses, and other accessories, for easy removal.

F. Do not use rust-stained, steel, form-facing material.

G. Set edge forms, bulkheads, and intermediate screed strips for slabs to achieve required elevations and slopes in finished concrete surfaces.

1. Provide and secure units to support screed strips

2. Use strike-off templates or compacting-type screeds.

H. Provide temporary openings for cleanouts and inspection ports where interior area of formwork is inaccessible.

1. Close openings with panels tightly fitted to forms and securely braced to prevent loss of concrete mortar.

2. Locate temporary openings in forms at inconspicuous locations.

I. Chamfer exterior corners and edges of permanently exposed concrete.

J. At construction joints, overlap forms onto previously placed concrete not less than 12 inches (305 mm).

K. Form openings, chases, offsets, sinkages, keyways, reglets, blocking, screeds, and bulkheads required in the Work.

1. Determine sizes and locations from trades providing such items.

2. Obtain written approval of Contracting Officer prior to forming openings not indicated on

Drawings.

L. Construction and Movement Joints:

1. Construct joints true to line with faces perpendicular to surface plane of concrete.

2. Install so strength and appearance of concrete are not impaired, at locations indicated or as approved by Contracting Officer.

3. Place joints perpendicular to main reinforcement.

4. Locate joints for beams, slabs, joists, and girders in the middle third of spans.

a. Offset joints in girders a minimum distance of twice the beam width from a beam-girder intersection.

5. Locate horizontal joints in walls and columns at underside of floors, slabs, beams, and girders and at the top of footings or floor slabs.

6. Space joints as indicated on Drawings or no more than 5 ft. apart.

a. Locate joints beside piers integral with walls, near corners, and in concealed locations where possible.

M. Provide temporary ports or openings in formwork where required to facilitate cleaning and inspection.

1. Locate ports and openings in bottom of vertical forms, in inconspicuous location, to allow flushing water to drain.

2. Close temporary ports and openings with tight-fitting panels, flush with inside face of form, and neatly fitted, so joints will not be apparent in exposed concrete surfaces.

N. Clean forms and adjacent surfaces to receive concrete. Remove chips, wood, sawdust, dirt, and other debris just before placing concrete.

O. Retighten forms and bracing before placing concrete, as required, to prevent mortar leaks and maintain proper alignment.

P. Coat contact surfaces of forms with form-release agent, according to manufacturer's written instructions, before placing reinforcement.

3.2 REMOVING AND REUSING FORMS

A. Formwork for sides of beams, walls, columns, and similar parts of the Work that does not support weight of concrete may be removed after cumulatively curing at not less than 50 deg F (10 deg C) for 24 hours after placing concrete. Concrete has to be hard enough to not be damaged by form-removal operations, and curing and protection operations need to be maintained.

1. Remove forms only if shores have been arranged to permit removal of forms without loosening or disturbing shores.

B. Clean and repair surfaces of forms to be reused in the Work.

1. Split, frayed, delaminated, or otherwise damaged form-facing material are unacceptable for exposed surfaces.

2. Apply new form-release agent.

C. When forms are reused, clean surfaces, remove fins and laitance, and tighten to close joints.

1. Align and secure joints to avoid offsets.

3.3 FIELD QUALITY CONTROL

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

B. Inspections:

1. Inspect formwork for shape, location, and dimensions of the concrete member being formed.

END OF SECTION 031000

5.

SECTION 032000

CONCRETE REINFORCING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Steel reinforcement bars.

2. Welded-wire reinforcement.

B. This section is only applicable to the construction of concrete pad or sidewalk.

C. NOT for use for construction of SST building, vault or other parts related to the prefabricated concrete SST building.

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at project site.

1. Review the following:

a. Construction contraction and isolation joints.

b. Steel-reinforcement installation.

1.4 ACTION SUBMITTALS

A. Product Data: For the following:

1. Each type of steel reinforcement.

2. Epoxy repair coating.

3. Zinc repair material.

4. Bar supports.

5. Mechanical splice couplers.

6. Structural thermal break insulated connection system.

B. Shop Drawings: Comply with ACI SP-066:

1. Include placing drawings that detail fabrication, bending, and placement.

2. Include bar sizes, lengths, materials, grades, bar schedules, stirrup spacing, bent bar diagrams, bar arrangement, location of splices, lengths of lap splices, details of mechanical splice couplers, details of welding splices, tie spacing, hoop spacing, and supports for concrete reinforcement.

3. For structural thermal break insulated connection system, indicate general configuration, insulation dimensions, tension bars, compression pads, shear bars, and dimensions.

C. Construction Joint Layout: Indicate proposed construction joints required to build the structure.

1. Location of construction joints is subject to approval of the Contracting Officer.

1.5 INFORMATIONAL SUBMITTALS

A. Welding certificates.

1. Reinforcement To Be Welded: Welding procedure specification in accordance with AWS D1.4/D1.4M

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

1. Epoxy-Coated Reinforcement: CRSI's "Epoxy Coating Plant Certification."

2. Dual-Coated Reinforcement: CRSI's "Epoxy Coating Plant Certification."

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

1. Steel Reinforcement:

a. For reinforcement to be welded, mill test analysis for chemical composition and carbon equivalent of the steel in accordance with ASTM A706/A706M.

1.6 QUALITY ASSURANCE

A. Testing Agency Qualifications: An independent agency qualified in accordance with ASTM C1077 and ASTM E329 for testing indicated.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Steel Reinforcement: Deliver, store, and handle steel reinforcement to prevent bending and damage.

1. Store reinforcement to avoid contact with earth.

2. Do not allow epoxy-coated reinforcement to be stored outdoors for more than 60 days without being stored under an opaque covering.

3. Do not allow dual-coated reinforcement to be stored outdoors for more than 60 days without being stored under an opaque covering.

4. Do not allow stainless steel reinforcement to come into contact with uncoated reinforcement.

PART 2 - PRODUCTS

2.1 STEEL REINFORCEMENT

A. Reinforcing Steel: ASTM A615, Grade 40.

1. Deformed billet-steel bars.

B. Welded Steel Wire Fabric: ASTM A185, plain type

1. Mesh Size and Wire Gauge: As indicated on drawings.

2.2 REINFORCEMENT ACCESSORIES

A. Tie Wire: Annealed, minimum 16 gague.

B. Chairs, Bolsters, Bar Supports, and Spacers: Sized and shaped for adequate support of reinforcement.

2.3 FABRICATING REINFORCEMENT

A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice."

PART 3 - EXECUTION

3.1 PREPARATION

A. Protection of In-Place Conditions:

1. Do not cut or puncture vapor retarder.

2. Repair damage and reseal vapor retarder before placing concrete.

B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials that reduce bond to concrete.

3.2 INSTALLATION OF STEEL REINFORCEMENT

A. Comply with CRSI's "Manual of Standard Practice" for placing and supporting reinforcement.

B. Accurately position, support, and secure reinforcement against displacement.

1. Locate and support reinforcement with bar supports to maintain minimum concrete cover.

2. Do not tack weld crossing reinforcing bars.

C. Preserve clearance between bars of not less than 1 inch (25 mm), not less than one bar diameter, or not less than 1-1/3 times size of large aggregate, whichever is greater.

D. Provide concrete coverage in accordance with ACI 318 (ACI 318M).

E. Set wire ties with ends directed into concrete, not toward exposed concrete surfaces.

F. Splices: Lap splices as indicated on Drawings.

1. Bars indicated to be continuous, and all vertical bars shall be lapped not less than 36 bar diameters at splices, or 24 inches (610 mm), whichever is greater.

2. Stagger splices in accordance with ACI 318 (ACI 318M).

G. Install welded-wire reinforcement in longest practicable lengths.

1. Support welded-wire reinforcement in accordance with CRSI "Manual of Standard Practice."

a. For reinforcement less than W4.0 or D4.0, continuous support spacing shall not exceed 12 inches (305 mm).

2. Lap edges and ends of adjoining sheets at least one wire spacing plus 2 inches (50 mm) for plain wire and 8 inches (200 mm) for deformed wire.

3. Offset laps of adjoining sheet widths to prevent continuous laps in either direction.

4. Lace overlaps with wire.

3.3 JOINTS

A. Construction Joints: Install so strength and appearance of concrete are not impaired, at locations indicated or as approved by Contracting Officer.

1. Place joints perpendicular to main reinforcement.

2. Continue reinforcement across construction joints unless otherwise indicated.

3. Do not continue reinforcement through sides of strip placements of floors and slabs.

B. Doweled Joints: Install dowel bars and support assemblies at joints where indicated. Lubricate or asphalt coat one-half of dowel length, to prevent concrete bonding to one side of joint.

3.4 INSTALLATION TOLERANCES

A. Comply with ACI 117 (ACI 117M).

3.5 FIELD QUALITY CONTROL

A. Inspections:

1. Steel-reinforcement placement.

2. Steel-reinforcement mechanical splice couplers.

3. Steel-reinforcement welding.

END OF SECTION 032000

SECTION 033000

CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Cast-in-place concrete, including concrete materials, mixture design, placement procedures, and finishes.

B. Related Requirements:

1. Section 031000 "Concrete Forming and Accessories" for form-facing materials and form liners.

2. Section 032000 "Concrete Reinforcing" for steel reinforcing bars and welded-wire reinforcement.

C. This section is only applicable to the construction of concrete pad or sidewalk.

D. NOT for use for construction of SST building, vault or other parts related to the prefabricated concrete SST building.

E. Concrete pad or sidewalk minimum strength 4,500 psi. at 28 days

1.3 DEFINITIONS

A. Cementitious Materials: Portland cement alone or in combination with one or more of the following:

blended hydraulic cement, fly ash, slag cement, other pozzolans, and silica fume; materials subject to compliance with requirements.

B. Water/Cement Ratio (w/cm): The ratio by weight of water to cementitious materials.

1.4 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at project site.

1. Review the following:

a. Special inspection and testing and inspecting agency procedures for field quality control.

b. Construction joints, control joints, isolation joints, and joint-filler strips.

c. Semirigid joint fillers.

d. Vapor-retarder installation.

e. Anchor rod and anchorage device installation tolerances.

f. Cold and hot weather concreting procedures.

g. Concrete finishes and finishing.

h. Curing procedures.

i. Forms and form-removal limitations.

j. Shoring and reshoring procedures.

k. Methods for achieving specified floor and slab flatness and levelness.

l. Floor and slab flatness and levelness measurements.

m. Concrete repair procedures.

n. Concrete protection.

o. Initial curing and field curing of field test cylinders (ASTM C31/C31M.)

p. Protection of field cured field test cylinders.

1.5 ACTION SUBMITTALS

A. Product Data: For each of the following.

1. Portland cement.

2. Fly ash.

3. Slag cement.

4. Blended hydraulic cement.

5. Silica fume.

6. Performance-based hydraulic cement

7. Aggregates.

8. Admixtures:

a. Include limitations of use, including restrictions on cementitious materials, supplementary cementitious materials, air entrainment, aggregates, temperature at time of concrete placement, relative humidity at time of concrete placement, curing conditions, and use of other admixtures.

9. Fiber reinforcement.

10. Vapor retarders.

11. Floor and slab treatments.

12. Curing materials.

13. Joint fillers.

14. Repair materials.

B. Design Mixtures: For each concrete mixture, include the following:

1. Mixture identification.

2. Minimum 28-day compressive strength.

3. Durability exposure class.

4. Maximum w/cm.

5. Calculated equilibrium unit weight, for lightweight concrete.

6. Slump limit.

7. Air content.

8. Nominal maximum aggregate size.

9. Steel-fiber reinforcement content.

10. Synthetic micro-fiber content.

11. Indicate amounts of mixing water to be withheld for later addition at Project site if permitted.

12. Include manufacturer's certification that permeability-reducing admixture is compatible with mix design.

13. Include certification that dosage rate for permeability-reducing admixture matches dosage rate used in performance compliance test.

14. Intended placement method.

15. Submit alternate design mixtures when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

C. Shop Drawings:

1. Construction Joint Layout: Indicate proposed construction joints required to construct the structure.

a. Location of construction joints is subject to approval of the Contracting Officer.

D. Concrete Schedule: For each location of each Class of concrete indicated in "Concrete Mixtures" Article, including the following:

1. Concrete Class designation.

2. Location within Project.

3. Exposure Class designation.

4. Formed Surface Finish designation and final finish.

5. Final finish for floors.

6. Curing process.

7. Floor treatment if any.

1.6 INFORMATIONAL SUBMITTALS

A. Qualification Data: For the following:

1. Installer: Include copies of applicable ACI certificates.

2. Ready-mixed concrete manufacturer.

3. Testing agency: Include copies of applicable ACI certificates.

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

1. Portland cement.

2. Fly ash.

3. Slag cement.

4. Blended hydraulic cement.

5. Silica fume.

6. Performance-based hydraulic cement.

7. Aggregates.

8. Admixtures:

a. Permeability-Reducing Admixture: Include independent test reports, indicating compliance with specified requirements, including dosage rate used in test.

C. Research Reports:

1. For concrete admixtures in accordance with ICC's Acceptance Criteria AC198.

2. For sheet vapor retarder/termite barrier, showing compliance with ICC AC380.

D. Preconstruction Test Reports: For each mix design.

E. Field quality-control reports.

F. Minutes of preinstallation conference.

1.7 QUALITY ASSURANCE

A. Installer Qualifications: A…