Spanish_Moss_Trail-Tech_Specs.pdf

TECHNICAL SPECIFICATIONS

FOR

BEAUFORT COUNTY RIBAUT ROAD PATHWAY SERVICE

TOWN OF PORT ROYAL, SOUTH CAROLINA

PREPARED FOR:

FRIENDS OF SPANISH MOSS TRAIL

WE Project No.: 110288I

May 9, 2023

Table of Contents Beaufort County Ribaut Road Pathway Services May 2023 Ward Edwards, Inc.

WE Project No. 110288I

SECTION 00010 -TABLE OF CONTENTS

MISCELLANEOUS DOCUMENTS

000010 TABLE OF CONTENTS

DIVISION 1 - GENERAL REQUIREMENTS

010000 GENERAL REQUIREMENTS

DIVISION 2 –TECHNICAL SPECIFICATIONS

032000 CONCRETE REINFORCEMENT

032000 CAST-IN-PLACE CONCRETE

311000 SITE CLEARING AND MINOR DEMOLITION

312000 EARTHWORK

312319 DEWATERING

312323 TRENCHING, BACKFILLING FOR UTILITIES

312500 EROSION CONTROL

321123 AGGREGATE BASE COURSE

321216 HOT MIXED ASPHALT PAVEMENT

321313 PORTLAND CEMENT CONCRETE PAVEMENT

329219 SEEDING AND MULCHING

334000 STORM DRAINAGE

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SECTION 01 00 00

GENERAL REQUIREMENTS

TABLE OF CONTENTS

Article 1.1 SPECIFICATION CONVENTIONS Article 1.2 APPLICATION FOR PAYMENT Article 1.3 CHANGE PROCEDURES Article 1.4 UNIT PRICES Article 1.5 COORDINATION Article 1.6 FIELD ENGINEERING Article 1.7 PRECONSTRUCTION MEETINGS Article 1.8 PROGRESS MEETINGS Article 1.9 SUBMITTAL PROCEDURES Article 1.10 CONSTRUCTION PROGRESS SCHEDULES Article 1.11 QUALITY CONTROL Article 1.12 REFERENCES Article 1.13 TESTING LABORATORY SERVICES Article 1.14 TEMPORARY UTILITIES Article 1.15 MAINTENANCE AND REMOVAL OF TEMPORARY FACILITIES Article 1.16 PROGRESS CLEANING AND WASTE REMOVAL Article 1.17 PROTECTION OF INSTALLED WORK Article 1.18 WATER CONTROL Article 1.19 POLLUTION AND ENVIRONMENTAL CONTROL Article 1.20 PRODUCT DELIVERY, HANDLING, STORAGE Article 1.21 SUBSTITUTIONS Article 1.22 AS-BUILT DRAWINGS Article 1.23 CLOSEOUT PROCEDURES Article 1.24 FINAL CLEANING

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PART 1 GENERAL

1.1 SPECIFICATION CONVENTIONS

A. These specifications are written in imperative mood and streamlined form. This imperative language is directed to the Contractor, unless specifically noted otherwise. The words “shall be” are included by inference where a colon (:) is used within sentences or phrases.

1.2 APPLICATIONS FOR PAYMENT

A. Submit four (4) copies of each application on form approved by the Engineer.

B. Content and Format: Utilize “Schedule of Bid Prices” included as an attachment to the Agreement for listing items in Application for Payment.

C. Payment Period: Monthly.

1.3 CHANGE PROCEDURES

A. Authorized Changes to the Work: Pursuant to written direction to Contractor from the Engineer or the Owner in the form of a Change Order or Field Order.

B. Change Order: Issued for changes in quantities of Work, Contract Price or Contract Time.

C. Field Order: Issued for minor changes for which there is no change in Contract Price or Contract Time.

D. Changes in Contract Price or Contract Time will be determined in accordance with Article 12 of the General Conditions.

1.4 UNIT PRICES

A. Unit Price Schedule: The “Schedule of Bid Prices” is contained in the Bid Form, included as an attachment to the Agreement.

B. All costs in connection with the proper and successful completion of the Work, including furnishing all materials, equipment, supplies and appurtenances;

bonds, insurance, providing all construction plant, equipment and tools;

transportation, testing and performing all necessary labor and supervision to fully complete the Work shall be included in the unit prices bid for each item.

C. All work not specifically set forth as a pay item in the Schedule of Bid Prices in the Bid Form shall be considered a subsidiary obligation of the contractor and all costs in connection therewith shall be included in the prices bid.

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D. All items of Work shall be measured in the units indicated in the Schedule of Bid Prices.

1.5 COORDINATION

A. Coordinate scheduling, submittals, and Work by subcontractors under the various sections of the specifications to ensure efficient and orderly sequence of installation of interdependent construction elements.

1.6 FIELD ENGINEERING

A. Employ experienced instrument technician to locate reference datum and protect survey control and reference points.

B. Establish elevations, lines, and levels and certify elevations and locations of the Work conform to Contract Documents.

C. Verify field measurements are as indicated on shop drawings or as instructed by manufacturer.

1.7 PRECONSTRUCTION MEETINGS

A. The requirements for preconstruction meetings are outlined in the General Conditions and the Supplementary Conditions.

B. Engineer will coordinate preconstruction meetings with affected parties.

1. Time and place: As determined by Owner or other affected agencies.

2. Attendees: As specified in the General Conditions and in the

Supplementary Conditions and as directed by the Owner or the Engineer.

1.8 PROGRESS MEETINGS

A. Schedule and administer meetings throughout progress of the Work at intervals to be determined at the preconstruction meeting.

B. Preside at meetings, record minutes, and distribute copies within three days to those affected by decisions made.

1.9 SUBMITTAL PROCEDURES

A. Within 15 days after the date established in the Notice to Proceed, submit preliminary Schedule of Submittals in duplicate for Engineer’s review. Include Product data, Shop Drawings, samples and certifications as required by Technical Specification Sections.

B. Submit at least five copies of each submittal. The Engineer will retain four copies and return the remainder to the Contractor.

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C. Attach each submittal to a submittal form that identifies the Project, Contractor, subcontractor or supplier, and applicable Contract Document references.

D. Apply Contractor's stamp, signed or initialed, certifying that review, verification of Products required, field dimensions, adjacent construction Work, and coordination of information is in accordance with requirements of the Work and Contract Documents.

E. Identify variations from Contract Documents and Product or system limitations which may be detrimental to successful performance of completed Work.

F. Revise and resubmit submittals as required; identify changes made since previous submittal.

1.10 CONSTRUCTION PROGRESS SCHEDULES

A. Within 15 days after the date established in the Notice to Proceed, submit preliminary Progress Schedule in duplicate for Engineer’s review. Revise and resubmit as required.

B. Submit revised schedules with each Application for Payment, identifying changes since previous version. Indicate estimated percentage of completion for each item of Work at each submission.

1.11 QUALITY CONTROL

A. Monitor quality control over suppliers, manufacturers, Products, services, site conditions, and workmanship, to produce Work of specified quality.

B. Comply with manufacturer’s instructions.

C. Comply with specified standards as minimum quality for the Work except when more stringent tolerances, codes, or specified requirements indicate higher standards or more precise workmanship.

1.12 REFERENCES

A. Conform to referenced standards, specifications and details of construction by date of issue current as of date for receiving bids.

B. When referenced standards, specifications or details of construction conflict with Contract Documents, request clarification from Engineer before proceeding.

1.13 TESTING LABORATORY SERVICES

A. All testing, including re-testing due to failure of acceptance tests, will be paid for by the Contractor.

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B. Contractor will appoint, employ, and pay for specified services of an independent testing laboratory, acceptable to the Owner, to perform all testing required by the Technical Specifications.

C. Testing laboratory shall operate in accordance with ASTM C1077, ASTM D3740, ASTM D3666 and ASTM E329.

D. Cooperate with independent firm; furnish samples as requested.

E. Furnish five (5) copies of all test reports to Engineer.

1.14 TEMPORARY UTILITIES

A. Provide and pay for temporary electricity and power outlets for construction operations; connections, branch wiring, distribution boxes and flexible power cords as required.

B. Provide and maintain temporary lighting for construction operations if required.

C. Provide, maintain and pay for suitable quality water service required for construction operations.

D. Provide and maintain required sanitary facilities and enclosures.

1. Maintain in clean and sanitary condition.

2. Strictly enforce their use.

1.15 MAINTENANCE AND REMOVAL OF TEMPORARY FACILITIES

A. Maintain temporary utilities and facilities as long as needed for safe and proper completion of Work.

B. Remove temporary utilities, equipment, facilities, materials prior to Substantial Completion.

C. Clean and repair damage caused by installation or use of temporary Work.

D. Restore existing facilities used during construction to original condition. Restore permanent facilities used during construction to specified condition.

1.16 PROGRESS CLEANING AND WASTE REMOVAL

A. Collect and maintain areas free of waste materials, debris, and rubbish. Maintain site in clean and orderly condition.

B. Deposit waste material, trash, construction debris in securely lidded metal containers and remove from site on a regular basis.

C. Waste storage containers shall meet all local and state solid waste management regulations.

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D. Dispose of waste material and trash at a location offsite designated to receive such material.

E. No waste material, trash or construction debris of any kind will be buried on the site.

F. All hazardous waste shall be disposed of in accordance with state and local regulations and the manufacturer’s recommendations.

1.17 PROTECTION OF INSTALLED WORK

A. Protect installed Work and provide special protection where specified in individual specification sections.

1.18 WATER CONTROL

A. Maintain excavations free of water. Provide, operate, and maintain pumping equipment.

1.19 POLLUTION AND ENVIRONMENTAL CONTROL

A. Implement the Storm Water Pollution Prevention Plan (SWPPP) upon commencement of construction activities and comply with all provisions of the SWPPP throughout the construction period.

B. Periodic site inspections required by the SWPPP, along with all required inspection reports shall be provided by the [Owner][Contractor].

1.20 PRODUCT DELIVERY, HANDLING, STORAGE

A. Deliver, handle, store, and protect Products in accordance with manufacturer's instructions.

B. Store only enough product on site to complete the Work under this project.

C. Keep products stored in neat, orderly manner in appropriate containers and, where applicable, protected from the weather.

D. Do not place materials on private property without written permission from property owner.

E. During loading, transporting and unloading, exercise care to prevent damage to materials.

F. Store products in their original containers with original manufacturer’s labels and safety data.

G. Follow manufacturer’s instructions as well as all state and local regulations and recommendations for disposal of unused or waste product.

pamela.bernard Highlight

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H. Mix substances only in accordance with manufacturer’s instructions.

I. Contain spills and leakage and perform spill or leakage clean up immediately and in accordance with manufacturer’s instructions as well as all state and local regulations and recommendations.

1.21 SUBSTITUTIONS

A. Engineer will consider requests for Substitutions only after the effective date of the Agreement.

B. Document each request with complete data substantiating compliance of proposed Substitution with Contract Documents.

C. Submit five copies of request for Substitution for consideration. Limit each request to one proposed Substitution.

1.22 AS-BUILT DRAWINGS

A. Water Distribution and Sanitary Sewer Systems.

1. Maintain on site one set of Contract Drawings to be annotated for As-

Built Drawings.

2. Record in red on the As-built Drawings all deviations from the Contract

Drawings, including, but not limited to, the following data for the water distribution and sanitary sewer systems:

a. Horizontal location:

1) Underground pipelines

2) Fittings

3) Valves

4) Fire hydrants

5) Manholes

6) Clean-outs

7) Service laterals

8) Service lateral terminations

9) Pump stations

b. Depth of cover on all valves and fittings if greater than 3-ft.

c. Type, size, material, joint type and manufacturer of all valves

d. Linear feet of water line, sanitary sewer or force main

e. Size, type (material) and class of pipe

f. Slope of gravity sewer lines

g. Average bury depth of pipe

h. Identification of fittings type, material, size and joint type

i. Elevations at manholes: Rim and inverts

j. Elevation on top of force main connection to manhole or force main manifold

3. Record in red on the As-Built drawings for water and sanitary sewer systems, the following data for locations at which the newly installed pipe lines cross existing pipe lines or culverts:

a. Horizontal location of point of crossing

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b. Elevation of top and bottom of existing pipe line or culvert at point of crossing

c. Elevation of top and bottom of newly installed pipe line at point of crossing

d. Fittings used at crossing:

1) Type, size, joint type

2) Horizontal location

3) Elevation of top of fittings

4. Location and dimensional data may be obtained by field measurements or by generally accepted survey methods.

a. Field measurements:

1) All measurements shall be from permanent above-ground structures, monuments or other identifiable reference objects approved by the Engineer.

2) The location of elements by field measurements shall be defined by measurements to at least two reference objects.

b. Location by survey methods:

1) Survey must be based on the USA South Carolina State

Plane, RNAD 83 Coordinate System (Map code SC83F).

2) Elevations must be based on the 1929 USGS datum.

3) Furnish data as Point Files in AutoCAD or ASCI format.

B. Storm Drainage System:

1. The Contractor shall engage the services of a registered South Carolina

Professional Land Surveyor to conduct a field survey of the completed storm drainage facilities and to prepare as-built drawings for the storm drainage system. The following data shall be obtained by the Surveyor and included in the as-built drawings for the storm drainage system:

a. Horizontal location of pipe ends, drainage inlets, catch basins, junction boxes, manholes, headwalls and pond inlet/outlet structures

b. Elevation of frame, grate or lid, throat, and sump (bottom) at all drainage inlets, catch basins manholes and junction boxes

c. Invert elevation of all pipe ends

d. Identification of pipe diameter and material

e. Identification of inlet or catch basin type.

f. Size and type of manhole or junction box.

g. Elevations at storm water pond:

1) Top of bank elevation

2) Bottom elevation

3) Top of embankment/berm elevation

4) Littoral shelf elevation (if applicable)

5) Invert elevation of pond emergency spillway (if applicable)

6) Weir/invert elevation(s) and dimensions of pond outlet control structure(s)

2. Data appearing on the as-built drawling for the storm drainage system shall be obtained by accepted field survey methods.

a. Horizontal information shall be based on NAD 83.

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b. Vertical information shall be based on NGVD 29.

3. The as-built drawings for the storm drainage system shall be signed and sealed by the SC PLS who prepared them.

C. In the event deviations are made from approved shop drawings, a copy of the shop drawings, annotated in red showing the changes and as-built data, shall be included as part of the As-Built Drawings.

1.23 CLOSEOUT PROCEDURES

A. Submit written certification that Contract Documents have been reviewed, Work has been inspected, and Work is complete in accordance with Contract Documents and ready for Engineer's inspection.

B. Deliver the following documents to the Engineer:

1. As-built drawings

2. Executed Contractor’s General Guarantee

3. Executed Certificate of Non-Litigation

C. Submit final Application for Payment identifying total adjusted Contract Sum/Price, previous payments, and amount remaining due.

1.24 FINAL CLEANING

A. Execute final cleaning prior to final inspection.

B. Clean debris from drainage systems.

C. Remove waste and surplus materials, rubbish and construction facilities from site.

PART 2 PRODUCTS

Not Used.

PART 3 EXECUTION

Not Used.

END OF SECTION

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SECTION 03 20 00

CONCRETE REINFORCING

PART 1 GENERAL

1.1 SUMMARY

A. Section Includes:

1. Reinforcing bars.

2. Welded wire fabric.

3. Reinforcement accessories.

B. Related Sections:

1. Section 03 30 00 - Cast-in-Place Concrete.

1.2 REFERENCES

A. ASTM International:

1. ASTM A82 - Standard Specification for Steel Wire, Plain, for Concrete

Reinforcement.

2. A185-02 Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete

3. ASTM A497 - Standard Specification for Steel Welded Wire Fabric, Deformed, for Concrete Reinforcement.

4. ASTM A615/A615M - Standard Specification for Deformed and Plain

Billet-Steel Bars for Concrete Reinforcement.

5. ASTM A767/A767M - Standard Specification for Zinc-Coated

(Galvanized) Steel Bars for Concrete Reinforcement.

B. Concrete Reinforcing Steel Institute:

1. CRSI - Manual of Standard Practice.

1.3 SUBMITTALS

A. Section 010000s – General Requirements: Submittal Procedures.

B. Manufacturer's Certificate: Certify Products meet or exceed specified requirements.

C. Submit certified copies of mill test report of reinforcement materials analysis.

1.4 QUALITY ASSURANCE

A. Perform Work in accordance with CRSI - Manual of Standard Practice.

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1.5 COORDINATION

A. Coordinate with placement of formwork, formed openings and other Work.

PART 2 PRODUCTS

2.1 REINFORCEMENT

A. Reinforcing Steel: ASTM A615/A615M, 60 ksi yield grade; deformed billet steel bars, unfinished unless otherwise called for on the plans.

B. Galvanized Reinforcing Steel: Where called for on the plans, reinforcing steel shall be galvanized in accordance with ASTM A767/A767M, Class II.

C. Stirrups Steel: ASTM A82, unfinished unless otherwise called for on the plans.

D. Welded Steel Wire Fabric: ASTM A497 Deformed Type or ASTM A185 Plain type; unfinished.

2.2 ACCESSORY MATERIALS

A. Chairs, Bolsters, Bar Supports, Spacers: Sized and shaped for strength and support of reinforcement during concrete placement conditions including load bearing pad on bottom to prevent vapor retarder puncture.

B. Special Chairs, Bolsters, Bar Supports, Spacers Adjacent to Weather Exposed Concrete Surfaces: type; size and shape to meet Project conditions.

C. Reinforcing Splicing Devices: As called for on the plans.

2.3 FABRICATION

A. Fabricate concrete reinforcement in accordance with CRSI Manual of Practice.

PART 3 EXECUTION

3.1 PLACEMENT

A. Place, support and secure reinforcement against displacement. Do not deviate from required position.

B. Do not displace or damage vapor retarder.

C. Accommodate placement of formed openings.

D. Splice reinforcing where indicated on Drawings in accordance with splicing device manufacturer’s instructions.

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SECTION 03 30 00

CAST-IN-PLACE CONCRETE

PART 1 GENERAL

1.1 SUMMARY

A. Section includes cast-in-place concrete for the following:

1. Foundation walls.

2. Supported slabs.

3. Slabs on grade.

4. Equipment pads.

5. Thrust blocks.

6. Headwalls

7. Concrete Encasement

B. Work included in this section:

1. Concrete, cast-in-place

2. Forms and accessories

3. Concrete reinforcement

4. Concrete finishing

5. Concrete curing

1.2 REFERENCES

A. American Concrete Institute:

1. ACI 301 - Specifications for Structural Concrete for Buildings.

2. ACI 305 - Hot Weather Concreting.

3. ACI 306.1 - Standard Specification for Cold Weather Concreting.

4. ACI 308 - Guide to Curing Concrete

B. Concrete Reinforcing Steel Institute

1. CRSI Manual of Practice

C. American Society for Testing and Materials International:

1. ASTM A497/A 497M - Standard Specification for Steel Welded Wire

Reinforcement, Deformed, for Concrete

2. ASTM A615/A 615M - Standard Specification for Deformed and Plain

Billet-Steel Bars for Concrete Reinforcement

3. ASTM A704/A 704M - Standard Specification for Welded Steel Plain Bar or Rod Mats for Concrete Reinforcement

4. ASTM A767/A 767M - Standard Specification for Zinc-Coated

(Galvanized) Steel Bars for Concrete Reinforcement

5. ASTM C33 - Standard Specification for Concrete Aggregates.

6. ASTM C94 - Standard Specification for Ready-Mixed Concrete.

7. ASTM C150 - Standard Specification for Portland Cement.

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8. ASTM C260 - Standard Specification for Air-Entraining Admixtures for Concrete.

9. ASTM C309 - Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete

10. ASTM C494 - Standard Specification for Chemical Admixtures for Concrete.

11. ASTM C618 - Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete.

12. ASTM C1017 - Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete.

13. ASTM C1107 - Standard Specification for Packaged Dry, Hydraulic- Cement Grout (Nonshrink).

14. ASTM D98 - Standard Specification for Calcium Chloride

15. ASTM D1751 - Standard Specification for Preformed Expansion Joint

Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types).

16. ASTM E1643 - Standard Practice for Installation of Water Vapor Retarders Used in Contact with Earth or Granular Fill under Concrete Slabs.

17. ASTM E1745 - Standard Specification for Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs.

D. American Welding Society

1. Structural Welding Code – Reinforcing Steel

1.3 SUBMITTALS

A. Section 010000 – General Requirements: Submittal Procedures.

B. Product Data: Submit data on admixtures, joint devices, joint filler and sealer.

C. Design Data:

1. Submit concrete mix design for each concrete strength. Submit separate mix designs when admixtures are required for the following:

a. Hot and cold weather concrete work.

b. Air entrained concrete work.

2. Identify mix ingredients and proportions, including admixtures.

D. Manufacturer's certification: Certify products meet or exceed specified requirements.

1.4 CLOSEOUT SUBMITTALS

A. Section 010000 – General Requirements: Closeout procedures.

B. Project Record Documents: Accurately record actual locations of embedded utilities and components concealed from view in finished construction.

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1.5 QUALITY ASSURANCE

A. Perform Work in accordance with ACI 301.

B. Use cement and aggregate from one source for all Work under this contract.

C. Conform to ACI 305 when concreting during hot weather.

D. Conform to ACI 306.1 when concreting during cold weather.

1.6 COORDINATION

A. Section 010000 – General Requirements: Coordination.

B. Coordinate placement of joint devices with erection of concrete formwork and placement of form accessories.

PART 2 PRODUCTS

2.1 CONCRETE MATERIALS

A. Cement: ASTM C150, Type II – Moderate unless specifically indicated otherwise on the drawings or in Special Provisions.

B. Fine and Coarse Aggregates: ASTM C33.

C. Water: Clean and not detrimental to concrete.

2.2 ADMIXTURES

A. Air Entrainment: ASTM C260.

B. Chemical: ASTM C494 Type A - Water Reducing, Type C – Accelerating, Type D

- Water Reducing and Retarding, Type E - Water Reducing and Accelerating, Type F - Water Reducing, High Range, Type G - Water Reducing, High Range and Retarding.

1. Type B is not allowed.

C. Fly Ash: ASTM C618 Class C or F.

D. Plasticizer: ASTM C1017.

2.3 CALCIUM CHLORIDE

A. ASTM D98, Type S or Type L.

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B. May be used for cold weather work in un-reinforced concrete only. Calcium Chloride shall not be used in reinforced concrete structures or in any concrete, reinforced or un-reinforced, that is in contact with ferrous metal.

2.4 ACCESSORIES

A. Vapor Barrier: ASTM E1745 Class A; 15 mil thick clear polyethylene film; type recommended for below grade application. Furnish joint tape recommended by manufacturer.

B. Non-Shrink Grout: ASTM C1107, Grade B or C, premixed compound consisting of non-metallic aggregate, cement, water reducing and plasticizing agents;

capable of developing minimum compressive strength of 2,400 psi in 48 hours and 7,000 psi in 28 days.

2.5 JOINT FILLER MATERIALS

A. Expansion Joint Filler: ASTM D1751; Asphalt impregnated fiberboard or felt, 1/4 inch thick; tongue and groove profile.

2.6 CONCRETE MIX

A. Mix and deliver concrete in accordance with ASTM C94, Option C.

B. Select proportions for normal weight concrete in accordance with ACI 301 trial mixtures.

C. Provide concrete to the following criteria:

Concrete class Designation 28-day Compressive Strength

2500 2500 psi 3000 3000 psi 4000 4000 psi

5000 5000 psi

D. Slump: 1 inch to 4-inches, before the addition of high range water reducing add mixtures.

E. Entrained Air: 4 1/2%, plus or minus 1 1/2%.

F. Admixtures: The contractor is responsible for obtaining the desired consistency of the concrete. The addition of pozzolans and /or admixtures may be necessary to obtain the appropriate workability and consistency. The Contractor is responsible for providing additional pozzolans or admixtures as necessary at no additional cost.

1. Use accelerating admixtures in cold weather. Use of admixtures will not relax cold weather placement requirements.

2. Use set retarding admixtures during hot weather.

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3. Add air entraining agent to normal weight concrete mix for work exposed to exterior.

4. Type F and Type G admixtures are added at the job site just before discharge. The slump of the concrete shall be measured before the addition of these high range admixtures and shall not exceed the maximum limit specified.

2.7 WOOD FORM MATERIALS

A. Form Materials: At discretion of Contractor.

B. Lumber Forms:

1. Application: Use for edge forms and unexposed finish concrete.

2. Boards: 6 inches or 8 inches in width, shiplapped or tongue and groove, “Standard” Grade Spruce, Pine or Fir. Surface boards on four sides.

C. Plywood Forms:

1. Application: Use for exposed finish concrete.

2. Forms: Conform to PS 1; full size 4 x 8 feet panels; each panel labeled with grade trademark of APA/EWA.

3. Plywood for Surfaces to Receive Membrane Waterproofing: Minimum of

5/8 inch thick; APA/EWA “B-B Plyform Structural I Exterior” grade.

4. Plywood where “Smooth Finish” is required, as indicated on Drawings:

APA/EWA “HD Overlay Plyform Structural I Exterior” grade, minimum of 3/4 inch thick.

2.8 PREFABRICATED FORMS

A. Preformed Steel Forms: Minimum 16 gage matched, tight fitting, stiffened to support weight of concrete without deflection detrimental to tolerances and appearance of finished surfaces.

B. Glass Fiber Fabric Reinforced Plastic Forms: Matched, tight fitting, stiffened to support weight of concrete without deflection detrimental to tolerances and appearance of finished concrete surfaces.

C. Pan Type: Steel of size and profile required.

D. Tubular Column Type: Round, spirally wound laminated fiber, wood, or glass fiber material, surface treated with release agent, non-reusable, sizes as indicated on Drawings

E. Void Forms: Moisture resistant treated paper faces, biodegradable, structurally sufficient to support weight of wet concrete mix until initial set.

F. Steel Forms: Sheet steel, suitably reinforced, and designed for particular use indicated on Drawings.

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2.9 FRAMING, STUDDING AND BRACING: Stud or No. 3 structural light framing grade.

2.10 FORM LINERS: Smooth, durable, grainless and non-staining hardboard, unless otherwise indicated on Drawings.

A. Architectural Form Liners: Polystyrene, Acrylonitrile butadiene styrene (ABS) or Polyurethane; single use or reusable; pattern as indicated on Drawings.

2.11 FORMWORK ACCESSORIES

A. Form Ties: Snap-off type, galvanized metal, adjustable length, cone type, 3/4 inch back break dimension, free of defects capable of leaving holes larger than 1 inch in concrete surface.

B. Spreaders: Standard, non-corrosive metal form clamp assembly, of type acting as spreaders and leaving no metal within 1 inch of concrete face. Wire ties, wood spreaders or through bolts are not permitted.

C. Form Anchors and Hangers:

1. Do not use anchors and hangers for exposed concrete leaving exposed metal at concrete surface.

2. Symmetrically arrange hangers supporting forms from structural steel members to minimize twisting or rotation of member.

3. Penetration of structural steel members is not permitted.

D. Form Release Agent: Colorless mineral oil that will not stain concrete, or absorb moisture or impair natural bonding or color characteristics of coating intended for use on concrete.

E. Corners: Fillet and Chamfer, rigid plastic or wood strip, maximum possible lengths.

F. Vapor Retarder: Where indicated on Drawings, 8 mil thick polyethylene sheet.

G. Bituminous Joint Filler: ASTM D1751.

H. Nails, Spikes, Lag Bolts, Through Bolts, Anchorages: Size, strength and character to maintain formwork in place while placing concrete.

I. Water Stops: Polyvinyl chloride, minimum 1,750 psi tensile strength, minimum 50 degrees F to plus 175 degrees F working temperature range, 6 inch nominal width, maximum possible lengths, ribbed profile, preformed corner sections, heat welded jointing.

2.12 REINFORCEMENT

A. Reinforcing Steel: ASTM A615/A615M, 60 ksi yield grade; deformed billet steel bars, unfinished.

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B. Where indicated on the plans use hot dip galvanized reinforcing bars in accordance with ASTM A767/A767M, Class II finish, minimum thickness of 3.5 mils.

C. Reinforcing Steel Plain Bar and Rod Mats: ASTM A704/A704M, ASTM A615/A615M, Grade 60, steel bars or rods, unfinished.

D. Steel Welded Wire Reinforcement: ASTM A497 Deformed Type, galvanized.

2.13 REINFORCING ACCESSORY MATERIALS

A. Tie Wire: Epoxy coated

B. Chairs, Bolsters, Bar Supports, Spacers: Sized and shaped for strength and support of reinforcement during concrete placement conditions including load bearing pad on bottom to prevent vapor retarder puncture where applicable.

C. Special Chairs, Bolsters, Bar Supports, Spacers Adjacent to Weather Exposed Concrete Surfaces: Plastic or plastic-coated steel, type; size and shape to meet Project conditions.

D. Reinforcing Splicing Devices:

1. Welded splices:

a. Use only where shown on the plans or with written approval of the Engineer.

b. Conform to AWS D1.4

c. Lap weld: Use low hydrogen type electrodes.

d. Exothermic welding type: Full tension and compression; sized to fit joined reinforcing.

e. Repair hot dip galvanized welded reinforcing with a zinc rich formulation approved by the Engineer.

2. Mechanical splices: Threaded type; full tension and compression; sized to fit joined reinforcing.

2.14 CURING MATERIALS

A. Membrane Curing Compound: ASTM C309 Type 2, Class A.

PART 3 EXECUTION

3.1 FORM ERECTION

A. Verify lines, levels, and centers before proceeding with formwork. Verify dimensions agree with Drawings.

B. When formwork is placed after reinforcement resulting in insufficient concrete cover over reinforcement before proceeding, request instructions from Architect/Engineer.

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C. Earth Forms:

1. Trench earth forms neatly and accurately.

2. Trim sides and bottom of earth forms.

3. Construct wood edge strips at top of each side of trench to secure reinforcing and prevent trench from sloughing.

4. Form sides of footings where earth sloughs.

5. Tamp earth forms firm and clean forms of debris and loose material before depositing concrete.

D. Formwork - General:

1. Provide top form for sloped surfaces steeper than 1.5 horizontal to 1 vertical to hold shape of concrete during placement, unless it can be demonstrated that top forms can be omitted.

2. Construct forms to correct shape and dimensions, mortar-tight, braced, and of sufficient strength to maintain shape and position under imposed loads from construction operations.

3. Camber forms where necessary to produce level finished soffits unless otherwise shown on Drawings.

4. Carefully verify horizontal and vertical positions of forms. Correct misaligned or misplaced forms before placing concrete.

5. Complete wedging and bracing before placing concrete.

E. Forms for Smooth Finish Concrete:

1. Use steel, plywood or lined board forms.

2. Use clean and smooth plywood and form liners, uniform in size, and free from surface and edge damage capable of affecting resulting concrete finish.

3. Install form lining with close-fitting square joints between separate sheets without springing into place.

4. Use full size sheets of form lines and plywood wherever possible.

5. Tape joints to prevent protrusions in concrete.

6. Use care in forming and stripping wood forms to protect corners and edges.

7. Level and continue horizontal joints.

8. Keep wood forms wet until stripped.

F. Architectural Form Liners:

1. Erect architectural side of formwork first.

2. Attach form liner to forms before installing form ties.

3. Install form liners square, with joints and pattern aligned.

4. Seal form liner joints to prevent grout leaks.

5. Dress joints and edges to match form liner pattern and texture.

G. Forms for Surfaces to Receive Membrane Waterproofing: Use plywood or steel forms. After erection of forms, tape form joints to prevent protrusions in concrete.

H. Framing, Studding and Bracing:

1. Space studs at 16 inches on center maximum for boards and 12 inches on center maximum for plywood.

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2. Size framing, bracing, centering, and supporting members with sufficient strength to maintain shape and position under imposed loads from construction operations.

3. Construct beam soffits of material minimum of 2 inches thick.

4. Distribute bracing loads over base area on which bracing is erected.

5. When placed on ground, protect against undermining, settlement or accidental impact.

I. Erect formwork, shoring, and bracing to achieve design requirements, in accordance with requirements of ACI 301.

J. Arrange and assemble formwork to permit dismantling and stripping. Do not damage concrete during stripping. Permit removal of remaining principal shores.

K. Obtain Architect/Engineer’s approval before framing openings in structural members not indicated on Drawings.

L. Install fillet and chamfer strips where indicated on the Drawings.

M. Install void forms, when required, in accordance with manufacturer's recommendations.

3.2 APPLICATION - FORM RELEASE AGENT

A. Apply form release agent on formwork in accordance with manufacturer's recommendations.

B. Apply prior to placement of reinforcing steel, anchoring devices, and embedded items.

C. Do not apply form release agent where concrete surfaces are indicated to receive special finishes or applied coverings that are affected by agent. Soak inside surfaces of untreated forms with clean water. Keep surfaces coated prior to placement of concrete.

D. Reuse and Coating of Forms: Thoroughly clean forms and reapply form coating before each reuse. For exposed work, do not reuse forms with damaged faces or edges. Apply form coating to forms in accordance with manufacturer’s specifications. Do not coat forms for concrete indicated to receive “scored finish”.

Apply form coatings before placing reinforcing steel.

3.3 INSTALLATION - INSERTS, EMBEDDED PARTS, AND OPENINGS

A. Install formed openings for items to be embedded in or passing through concrete work.

B. Locate and set in place items required to be cast directly into concrete.

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C. Install accessories straight, level, and plumb. Ensure items are not disturbed during concrete placement.

D. Install water stops continuous without displacing reinforcement. Heat seal joints watertight.

E. Provide temporary ports or openings in formwork where required to facilitate cleaning and inspection. Locate openings at bottom of forms to allow flushing water to drain.

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

G. Form Ties:

1. Use sufficient strength and sufficient quantity to prevent spreading of forms.

2. Place ties at least 1 inch away from finished surface of concrete.

3. Leave inner rods in concrete when forms are stripped.

4. Space form ties equidistant, symmetrical and aligned vertically and horizontally unless otherwise shown on Drawings.

H. Arrangement: Arrange formwork to allow proper erection sequence and to permit form removal without damage to concrete.

I. Construction Joints:

1. Install surfaced pouring strip where construction joints intersect exposed surfaces to provide straight line at joints.

2. Just prior to subsequent concrete placement, remove strip and tighten forms to conceal shrinkage.

3. Show no overlapping of construction joints. Construct joints to present same appearance as butted plywood joints.

4. Arrange joints in continuous line straight, true and sharp.

J. Embedded Items:

1. Make provisions for pipes, sleeves, anchors, inserts, reglets, anchor slots, nailers, water stops, and other features.

2. Do not embed wood or uncoated aluminum in concrete.

3. Obtain installation and setting information for embedded items furnished under other Specification sections.

4. Securely anchor embedded items in correct location and alignment prior to placing concrete.

5. Verify conduits and pipes, including those made of coated aluminum, meet requirements of ACI 318, Section 6.3.

K. Openings for Items Passing Through Concrete:

1. Frame openings in concrete where indicated on Drawings. Establish exact locations, sizes, and other conditions required for openings and attachment of work specified under other sections.

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2. Coordinate work to avoid cutting and patching of concrete after placement.

3. Perform cutting and repairing of concrete required as result of failure to provide required openings.

L. Screeds:

1. Set screeds and establish levels for tops of concrete slabs and levels for finish on slabs.

2. Slope slabs to drain where required or as shown on Drawings.

3. Before depositing concrete, remove debris from space to be occupied by concrete and thoroughly wet forms. Remove freestanding water.

M. Screed Supports:

1. For concrete over waterproof membranes and vapor barrier membranes, use cradle, pad or base type screed supports which will not puncture membrane.

2. Staking through membrane is not permitted.

N. Cleanouts and Access Panels:

1. Provide removable cleanout sections or access panels at bottoms of forms to permit inspection and effective cleaning of loose dirt, debris and waste material.

2. Clean forms and surfaces against which concrete is to be placed.

Remove chips, saw dust and other debris. Thoroughly blow out forms with compressed air just before concrete is placed.

3.4 FORM REMOVAL

A. Loosen forms carefully. Do not wedge pry bars, hammers, or tools against finish concrete surfaces scheduled for exposure to view.

B. Store removed forms in manner that surfaces to be in contact with fresh concrete will not be damaged. Discard damaged forms.

3.5 FORM ERECTION TOLERANCES

A. Construct formwork to maintain tolerances required by ACI 301.

B. Tolerances: Construct formwork to produce completed concrete surfaces within construction tolerances specified in ACI 117.

C. Camber slabs and beams in accordance with ACI 301.

3.6 REINFORCING FABRICATION AND PLACEMENT

A. Fabricate concrete reinforcement in accordance with CRSI Manual of Practice.

B. Locate reinforcement splices not indicated on Drawings, at point of minimum stress.

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C. Place, support and secure reinforcement against displacement. Do not deviate from required position.

D. Use bar supports to position and support layers of reinforcing steel in slabs and beams.

E. Do not displace or damage vapor retarder.

F. Accommodate placement of formed openings.

G. Unless otherwise indicated on the Drawings, maintain concrete cover around reinforcement as follows:

Item Cover

Beams 1 1/2 inch Supported Slabs and Joists 3/4 inch Column Ties 1 inch Walls (exposed to weather or backfill) 2 inch Footings and Concrete Formed

Against Earth 3 inch Slabs on Fill 3 inch

3.7 PLACING CONCRETE

A. Verify requirements for concrete cover over reinforcement.

B. Verify anchors, seats, plates, reinforcement and other items to be cast into concrete are accurately placed, positioned securely, and will not interfere with placing concrete.

C. In locations where new concrete is doweled to existing work, drill holes in existing concrete, insert steel dowels and pack solid with non-shrink grout.

D. Place concrete in accordance with ACI 301.

E. Notify Engineer minimum 24 hours prior to commencement of concrete placement operations.

F. Ensure reinforcement, inserts, embedded parts, formed expansion and contraction joints are not disturbed during concrete placement.

G. Install vapor barrier under interior slabs on grade in accordance with ASTM E1643. Lap joints minimum 6 inches and seal watertight by taping edges and ends.

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H. Repair vapor barrier damaged during placement of concrete reinforcing. Repair with vapor barrier material; lap over damaged areas minimum 6 inches and seal watertight.

I. Separate slabs on grade from vertical surfaces with 1/4 inch thick joint filler.

J. Extend joint filler from bottom of slab to within 1/4 inch of finished slab surface.

Place floor slabs in sequence indicated on the Drawings.

K. Saw cut joints within 12 hours after placing. Use 3/16 inch thick blade, cut into 1/4 depth of slab thickness

L. Screed floors and slabs on grade level, maintaining surface flatness tolerance of 1/4 inch maximum in 10 ft.

3.8 CONCRETE FINISHING

A. Provide formed concrete surfaces to be left exposed with sack rubbed finish.

B. Finish concrete floor surfaces in accordance with ACI 301.

C. In areas with floor drains, maintain floor elevation at walls; pitch surfaces uniformly to drains at 1/4 inch per foot nominal or as indicated on drawings.

3.9 CURING AND PROTECTION

A. Immediately after placement, protect concrete from premature drying, excessively hot or cold temperatures, and mechanical injury.

B. Cure floor surfaces in accordance with ACI 308.

C. Membrane Curing Compound: Apply curing compound in one coat.

3.10 PROTECTION OF FINISHED WORK

A. Maintain concrete with minimal moisture loss at relatively constant temperature for period necessary for hydration of cement and hardening of concrete.

B. Do not remove forms or bracing until concrete has gained sufficient strength to carry its own weight and imposed loads and removal has been approved by Engineer.

C. Do not permit traffic over unprotected floor surface.

3.11 FIELD QUALITY CONTROL

A. Section 010000- General Requirements: Quality Control; Testing Laboratory Services.

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B. Inspect erected formwork, shoring, and bracing to ensure that work is in accordance with formwork design, and that supports, fastenings, wedges, ties, and items are secure.

C. Notify Engineer after placement of reinforcing steel in forms, but prior to placing concrete.

D. Schedule concrete placement to permit formwork inspection before placing concrete.

E. Field testing will be performed in accordance with ACI 301.

F. Provide free access to Work and cooperate with appointed testing laboratory.

G. Submit proposed mix design of each class of concrete to testing laboratory for review prior to commencement of Work.

H. Three concrete test cylinders will be taken for every 75 or less cu yds of each class of concrete placed each day.

I. One additional test cylinder will be taken during cold weather concreting, cured on job site under same conditions as concrete it represents.

J. One slump measurement will be taken for each set of test cylinders taken and one measurement for each truck load delivered to the site.

K. One air content test will be made for each set of test cylinders taken.

L. Maintain records of concrete placement. Record date, location, quantity, air temperature, test samples taken and slump measurements taken.

3.12 PATCHING

A. Allow Engineer to inspect concrete surfaces immediately upon removal of forms.

B. Excessive honeycomb or embedded debris in concrete is not acceptable. Notify Engineer upon discovery.

C. Patch imperfections, including form tie holes, as directed by Engineer in accordance with ACI 301.

3.13 DEFECTIVE CONCRETE

A. Defective Concrete: Concrete not conforming to required lines, details, dimensions, tolerances or specified requirements for quality.

B. Repair or replacement of defective concrete will be determined by Engineer.

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C. Do not patch, fill, touch-up, repair, or replace exposed concrete except upon express direction of Engineer for each individual area.

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SECTION 31 10 00

SITE CLEARING AND MINOR DEMOLITION

PART 1 GENERAL:

1.1 SUMMARY:

A. This Section includes the following:

1. Protection of existing trees that are to remain.

2. Removal of designated trees and other vegetation.

3. Clearing and grubbing.

4. Removal of drainage and utility pipes and structures.

5. Abandoning existing pipes and structures in place.

6. Removal of designated paving, curbs, gutters and sidewalks

7. Removal of debris and all unusable material from the site

B. Related Documents:

1. Section 31 20 00 – Earthwork

2. Section 31 25 00 – Erosion Control

PART 2 PRODUCTS

2.1 Flowable Fill: SCDOT Standard Specifications, Section 210.

PART 3 EXECUTION

3.1 PREPARATI0N

A. Conduct site clearing operations to ensure minimum interference with roads, streets, walks, and other adjacent occupied or used facilities. Do not close or obstruct, walks or other occupied or used facilities without permission from authorities having jurisdiction.

B. Provide protection necessary to prevent damage to existing improvements indicated to remain in place.

1. Protect improvements on adjoining properties and on Owner's property;

2. Restore damaged improvements to their original condition, as acceptable to property owners.

C. Tree Protection

1. Protect existing trees and other vegetation indicated to remain in place to prevent damage resulting from unnecessary cutting, breaking or skinning

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2. Install tree protection fencing where indicated on the plans and in accordance with the details on the Drawings. Maintain tree protection during length of construction activities. Remove tree protection only after all construction operations are complete and only when permitted by the Engineer.

3. Comply with local tree ordinances.

4. Water trees and other vegetation to remain within limits of contract work as required to maintain their health during course of construction operations.

5. Provide protection for roots over 1-1/2 inch diameter that are cut during construction operations. Temporarily cover exposed roots with wet burlap to prevent roots from drying out; cover with earth as soon as possible or cut off cleanly below grade.

6. Repair or replace trees and vegetation indicated to remain, which are damaged by operations, in a manner acceptable to Engineer. Employ a licensed arborist to repair damages to trees and shrubs. All tree repair work shall be done in accordance with the most recent revision of the International Society of Arboriculture practices.

7. Replace trees which, in the opinion of the arborist cannot be repaired and restored to full-growth.

8. Carefully remove items indicated to be salvaged, and store on Owner's premises where indicated or directed.

3.2 SITE CLEARING

A. General: Remove trees, shrubs, grass and other vegetation, improvements, or obstructions required to permit installation of new construction. Remove similar items elsewhere on premises as specifically indicated. "Removal" includes digging out and off-site disposing of stumps and roots.

1. Cut minor roots and branches of trees indicated to remain in a clean and careful manner, where such roots and branches obstruct…