Exhibit_A-2_-_Construction_Specifications_JCCA__21791-4.pdf

8 February 2024 Final Construction Documents

COOLING TOWER REPLACEMENT

DSH-PATTON, BUILDING N

SPECIFICATIONS

Prepared for:

DEPARTMENT OF STATE HOSPITALS

1215 O Street Sacramento, California 95814

Prepared by:

J.C. CHANG & ASSOCIATES, INC.

Engineers Architects Planners 385 Van Ness Avenue, Suite 208 Torrance, California 90501 Phone: (310) 212-7644 www.jccainc.com

JCCA #21791-4

J.C. Chang & Associates, Inc. DSH-Patton, Building N JCCA No. 21791-4 Cooling Tower Replacement

TABLE OF CONTENTS 1

TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

000105 Certifications Page

DIVISION 01 - GENERAL REQUIREMENTS

Contractor to obtain Division 00 and 01 from the Owner.

DIVISION 02 – EXISTING CONDITIONS

024119 Selective Demolition

DIVISION 03 – CONCRETE

033000 Cast-In-Place Concrete

DIVISION 05 – METALS

055000 Metal Fabrications

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

230513 Common Motor Requirements for HVAC Equipment 230516 Expansion Fittings and Loops for HVAC Piping 230517 Sleeves and Sleeve Seals for HVAC Piping 230518 Escutcheons for HVAC Piping 230519 Meters and Gauges for HVAC Piping

230523.11 Globe Valves for HVAC Piping

230523.12 Ball Valves for HVAC Piping

230523.13 Butterfly Valves for HVAC Piping

230523.14 Check Valves for HVAC Piping

230529 Hangers and Supports for HVAC Piping and Equipment 230548 Vibration and Seismic Controls for HVAC 230553 Identification for HVAC Piping and Equipment 230593 Testing, Adjusting, and Balancing for HVAC 230719 HVAC Piping Insulation 230800 Commissioning of HVAC 230923 Direct Digital Control (DDC) System for HVAC

230923.14 Flow Instruments

232113 Hydronic Piping

236514.13 Open Circuit, Induced Draft, Counterflow Cooling Towers

TABLE OF CONTENTS 2

DIVISION 26 - ELECTRICAL

260010 Supplemental Requirements for Electrical 260519 Low-Voltage Electrical Power Conductors and Cables 260523 Control-Voltage Electrical Power Cables 260526 Grounding and Bonding for Electrical Systems 260529 Hangers and Supports for Electrical Systems 260533 Raceway and Boxes for Electrical Systems 260553 Identification for Electrical Systems

260573.13 Short-Circuit Studies

260573.16 Coordination Studies

260573.19 Arc-Flash Hazard Analysis

262816 Enclosed Switches and Circuit Breakers 262923 Variable-Frequency Motor Controllers

DIVISION 31 - EARTHWORK

312000 Earth Moving 312333 Trenching and Backfilling

DIVISION 32 - EXTERIOR IMPROVEMENTS

321123 Aggregate Base Course 321313 Concrete Paving 321373 Concrete Paving Joint Sealants

APPENDIX A – OSHPD FORMS

END OF TABLE OF CONTENTS

CERTIFICATIONS PAGE 000105 - 1

DOCUMENT 000105

CERTIFICATIONS PAGE

PROJECT TITLE: Cooling Tower Replacement

CLIENT AGENCY: Department of State Hospitals

LOCATION: Department of State Hospitals - Patton 3102 Highland Avenue Patton, California 92369

PROJECT NUMBER: 21791-4

OWNER: STATE OF CALIFORNIA

PROJECT DIRECTOR: Paul Warner Facilities Planning Construction & Management Department of State Hospitals - Sacramento 1600 Ninth Street, Room 120 Sacramento, California 95814 Telephone Number: (916) 742-5460 Email: Paul.Warner@dsh.ca.gov

CONSULTANT: J.C. Chang & Associates, Inc.

Robert Nolan, PE

MECHANICAL ENGINEER

Robert K. Onishi, SE

STRUCTURAL ENGINEER

Sevag Avanessian, PE

ELECTRICAL ENGINEER

AUTHORITY HAVING

JURISDICTION

Date Signed: 2/8/2024 Date Signed: 2/8/2024 Date Signed: 2/8/2024

Robert Nolan, PE

MECHANICAL ENGINEER

Robert K. Onishi, SE

STRUCTURAL ENGINEER

Sevag Avanessian, PE

ELECTRICAL ENGINEER

AUTHORITY HAVING

JURISDICTION

Date Signed: 2/24/2022 Date Signed: 2/24/2022 Date Signed: 2/24/2022

CERTIFICATIONS PAGE 000105 - 2

THIS PAGE IS INTENTIONALLY LEFT BLANK

SELECTIVE DEMOLITION 024119-1

SECTION 024119

SELECTIVE 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 selected site elements.

2. Salvage of existing items to be reused or recycled.

1.3 DEFINITIONS

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

B. Remove and Salvage: Detach items from existing construction, in a manner to prevent damage, and deliver to Owner ready for reuse.

C. Remove and Reinstall: Detach items from existing construction, in a manner to prevent damage, prepare for reuse, and reinstall where indicated.

D. Existing to Remain: Leave existing items that are not to be removed and that are not otherwise indicated to be salvaged or reinstalled.

E. Dismantle: To remove by disassembling or detaching an item from a surface, using gentle methods and equipment to prevent damage to the item and surfaces; disposing of items unless indicated to be salvaged or reinstalled.

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.

SELECTIVE DEMOLITION 024119-2

1.5 PREINSTALLATION MEETINGS

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

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

2. Review structural load limitations of existing structure.

3. Review and finalize selective demolition schedule and verify availability of materials, demolition personnel, equipment, and facilities needed to make progress and avoid delays.

4. Review requirements of work performed by other trades that rely on substrates exposed by selective demolition operations.

5. Review areas where existing construction is to remain and requires protection.

1.6 INFORMATIONAL SUBMITTALS

A. Qualification Data: For refrigerant recovery technician.

B. Engineering Survey: Submit engineering survey of condition of building.

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

D. Schedule of Selective Demolition Activities: Indicate the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity. Ensure Owner's on-site operations are uninterrupted.

2. Interruption of utility services and irrigation. Indicate how long utility services will be interrupted.

3. Coordination for shutoff, capping, and continuation of utility services and irrigation.

4. Use of elevator and stairs.

5. Coordination of Owner's continuing occupancy of portions of existing building and of site.

E. Predemolition Photographs or Video: Show existing conditions of adjoining construction, including finish surfaces, trees and plant material that might be misconstrued as damage caused by demolition operations.

F. Warranties: Documentation indicating that existing warranties are still in effect after completion of selective demolition.

1.7 CLOSEOUT SUBMITTALS

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

SELECTIVE DEMOLITION 024119-3

1.8 FIELD CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area.

Conduct selective demolition so Owner's operations will not be disrupted.

B. Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

C. Notify Owner of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials: Present in buildings and structures to be selectively demolished. A report on the presence of hazardous materials is on file for review and use. Examine report to become aware of locations where hazardous materials are present.

1. Hazardous material remediation is specified elsewhere in the Contract Documents.

2. Do not disturb hazardous materials or items suspected of containing hazardous materials except under procedures specified elsewhere in the Contract Documents.

3. Owner will provide material safety data sheets for suspected hazardous materials that are known to be present in buildings and structures to be selectively demolished because of building operations or processes performed there.

E. Storage or sale of removed items or materials on-site is not permitted.

F. Utility Service: Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Maintain fire-protection facilities in service during selective demolition operations.

1.9 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials and using approved contractors so as not to void existing warranties.

1.10 COORDINATION

A. Arrange selective demolition schedule so as not to interfere with Owner's operations.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

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

SELECTIVE DEMOLITION 024119-4

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

PART 3 - EXECUTION

3.1 EXAMINATION

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

B. Review Project Record Documents of existing construction or other existing condition and hazardous material information provided by Owner. Owner does not guarantee that existing conditions are same as those indicated in Project Record Documents.

C. Verify that hazardous materials have been remediated before proceeding with building demolition operations.

D. Survey of Existing Conditions: Record existing conditions by use of preconstruction photographs or video.

1. Inventory and record the condition of items to be removed and salvaged. Provide photographs or video of conditions that might be misconstrued as damage caused by salvage operations.

2. Before selective demolition or removal of existing building elements that will be reproduced or duplicated in final Work, make permanent record of measurements, materials, and construction details required to make exact reproduction.

3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems to Remain: Maintain services/systems indicated to remain and protect them against damage, including but not limited to existing irrigation system.

B. Existing Services/Systems to Be Removed, Relocated, or Abandoned: Locate, identify, disconnect, and seal or cap off utility services and mechanical/electrical systems serving areas to be selectively demolished.

1. Owner will arrange to shut off indicated services/systems when requested by Contractor.

2. Arrange to shut off utilities with utility companies.

3. If services/systems are required to be removed, relocated, or abandoned, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of site, including but not limited to existing irrigation system.

4. Disconnect, demolish, and remove fire-suppression systems, plumbing, and HVAC systems, equipment, and components indicated on Drawings to be removed.

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

SELECTIVE DEMOLITION 024119-5

b. Piping to Be Abandoned in Place: Drain piping and cap or plug piping with same or compatible piping material and leave in place.

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

d. Equipment to Be Removed and Reinstalled: Disconnect and cap services and remove, clean, and store equipment; when appropriate, reinstall, reconnect, and make equipment operational.

e. Equipment to Be Removed and Salvaged: Disconnect and cap services and remove equipment and deliver to Owner.

f. Ducts to Be Removed: Remove portion of ducts indicated to be removed and plug remaining ducts with same or compatible ductwork material.

g. Ducts to Be Abandoned in Place: Cap or plug ducts with same or compatible ductwork material and leave in place.

3.3 PROTECTION

A. Temporary Protection: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

1. Provide protection to ensure safe passage of people around selective demolition area and to and from occupied portions of building.

2. Provide temporary weather protection, during interval between selective demolition of existing construction on exterior surfaces and new construction, to prevent water leakage and damage to structure and interior areas.

3. Protect walls, ceilings, floors, and other existing finish work that are to remain or that are exposed during selective demolition operations.

4. Cover and protect furniture, furnishings, and equipment that have not been removed.

5. Comply with requirements for temporary enclosures, dust control, heating, and cooling.

6. Comply with requirements for temporary Tree and Plant Protection Zones.

B. Temporary Shoring: Design, provide, and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

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

C. Remove temporary barricades and protections where hazards no longer exist.

3.4 SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Proceed with selective demolition systematically, from higher to lower level. Complete selective demolition operations above each floor or tier before disturbing supporting members on the next lower level.

SELECTIVE DEMOLITION 024119-6

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction.

Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

4. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

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

6. Maintain adequate ventilation when using cutting torches.

7. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

8. Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.

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

10. When demolition is within 25 feet of Tree driplines/ Tree and Plant Protection Zones, proceed in manner.

11. Dispose of demolished items and materials promptly.

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

C. Removed and Salvaged Items:

1. Clean salvaged items.

2. Pack or crate items after cleaning. Identify contents of containers.

3. Store items in a secure area until delivery to Owner.

4. Transport items to Owner's storage area on-site.

5. Protect items from damage during transport and storage.

D. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse.

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

3. Protect items from damage during transport and storage.

4. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

E. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Owner, items may be removed to a suitable, protected storage location during selective demolition and cleaned and reinstalled in their original locations after selective demolition operations are complete.

SELECTIVE DEMOLITION 024119-7

3.5 SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS

A. Concrete: Demolish in sections. Cut concrete full depth at junctures with construction to remain and at regular intervals using power-driven saw, and then remove concrete between saw cuts.

B. Masonry: Demolish in small sections. Cut masonry at junctures with construction to remain, using power-driven saw, and then remove masonry between saw cuts.

C. Concrete Slabs-on-Grade: Saw-cut perimeter of area to be demolished, and then break up and remove.

3.6 DISPOSAL OF DEMOLISHED MATERIALS

A. Remove demolition waste materials from Project site

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. Burning: Do not burn demolished materials.

3.7 CLEANING

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

END OF SECTION 024119

SELECTIVE DEMOLITION 024119-8

CAST-IN-PLACE CONCRETE 033000-1

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:

Structural concrete for electrical duct banks, equipment pads, and fence post footings.

B. Related Sections:

1.3 REFERENCES

A. ACI 117 - Tolerances for Concrete Construction and Materials.

B. ACI 211.1 - Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete.

C. ACI 301 - Specifications for Structural Concrete.

D. ACI 302.1R - Guide for Concrete Floor and Slab Construction.

E. ACI 304R - Guide for Measuring, Mixing, Transporting and Placing Concrete.

F. ACI 305R - Hot Weather Concreting.

G. ACI 306.1 - Cold Weather Concreting.

H. ACI 308.1 - Curing Concrete.

I. ACI 318 - Building Code Requirements for Structural Concrete and Commentary.

J. ACI 350 - Code Requirements for Environmental Engineering Concrete Structures.

K. ACI SP-66 - ACI Detailing Manual.

L. AISC - Manual of Steel Construction.

CAST-IN-PLACE CONCRETE 033000-2

M. ASTM C33 - Concrete Aggregates.

N. ASTM C39 - Test Method for Compressive Strength of Cylindrical Concrete Specimens.

O. ASTM C94 - Ready-Mixed Concrete.

P. ASTM C150 - Portland Cement.

Q. ASTM C171 - Sheet Materials for Curing Concrete.

R. ASTM C192 - Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory.

S. ASTM C260 - Air-Entraining Admixtures for Concrete.

T. ASTM C309 - Liquid Membrane-Forming Compounds for Curing Concrete.

U. ASTM C330 - Lightweight Aggregates for Structural Concrete.

V. ASTM C494 - Chemical Admixtures for Concrete.

W. ASTM C618 - Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete.

X. ASTM D994 - Preformed Expansion Joint Filler for Concrete (Bituminous Type). Filler Not Exposed to Traffic or Weather.

Y. ASTM C1107 - Packaged Dry, Hydraulic-Cement Grout (Nonshrink).

Z. ASTM D1751 - Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types).

AA. ASTM D1752 - Preformed Sponge Rubber Cork and Recycled PVC Expansion Joint Fillers for Concrete Paving and Structural Construction.

BB. ASTM D6690 - Joint and Crack Sealants, Hot Applied, for Concrete and Pavements.

CC. ASTM E1155 - Standard Test Method for Determining FF Floor Flatness and FL Floor Levelness Numbers.

1.4 SUBMITTALS

A. Shop Drawings: Indicate locations and details of proposed construction and control joints.

B. Product Data:

Product data for products and materials indicated.

Manufacturer’s technical bulletins and installation/application instructions.

Accelerator admixture test results in accordance with 2.2.E.2.

Material Safety Data Sheets (MSDS).

For products having recycled content, documentation indicating percentages by weight of

CAST-IN-PLACE CONCRETE 033000-3

postconsumer and pre-consumer recycled content. Include statement indicating costs for each product having recycled content, the manufacturer, and the source of the recycled content data.

C. Certificates:

Manufacturer’s Certificate: Certify that products meet or exceed specified requirements.

D. Mix Designs:

Submit separate mix design for each type of concrete specified.

Submit certified mix designs with and without fly ash for comparison.

a. For further Mix Design criteria, refer to Part 2, “Mix Designs” article.

Submit for each concrete mixture containing at least 40 percent fly ash as a replacement for portland cement or 40 percent other portland cement replacements and for equivalent concrete mixtures that do not contain portland cement replacements.

Submit test results on three cylinders for each mix design.

b. Prepare, age, and cure in accordance with ASTM C192.

c. Test at seven and 28 days in accordance with ASTM C39.

d. The test cylinders must have been prepared from a batch of the proposed mix design with fly ash.

e. Where the 28-day tests do not meet specified strength requirements, the mix design will not be acceptable.

E. Concrete Placement Checklist: When required by the Owner, provide checklist in a form approved by the Owner. Checklist to indicate items of Work that must be signed by the Contractor and the Owner prior to placement of concrete.

1.5 COORDINATION

A. Coordinate the installation of items to be embedded in concrete and provide openings in the concrete necessary for performance of Work of other Sections.

B. Request schedules of items specified under other Sections, but installed under this Section, in addition to templates, template dimensions, and shop drawings required for the installation of those items.

C. Concrete which is to receive application of other Work must be water-cured only, and maintained free from other formwork and curing materials, unless otherwise accepted by the Owner.

D. Sample Panel Requirements:

Sufficient size to indicate special treatment or finish required.

Located as directed by the Owner.

Approved sample may remain as part of Work.

CAST-IN-PLACE CONCRETE 033000-4

E. Approved sample panel is considered basis of quality for the finished Work. Keep sample panel exposed to view for duration of Work.

1.6 PRE-INSTALLATION CONFERENCE

A. Hold a pre-installation conference before submitting mix designs and a minimum of two weeks prior to commencing work of this Section.

B. Require representatives of each entity directly concerned with cast-in-place concrete to attend, including the following:

Owner.

Contractor’s superintendent.

Independent testing agency responsible for concrete design mixtures.

Ready-mix concrete manufacturer.

Concrete Subcontractor.

Special concrete finish Subcontractor.

C. Review concrete design mixture(s) and examine procedures for ensuring quality of concrete materials and installation.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver, store, and handle packaged materials in the manufacturer’s original, sealed containers, each clearly identified with the manufacturer’s name, and name and type of product.

B. Store materials subject to damage by dirt and moisture in a clean, dry location, off the ground, and suitably protected.

C. Store coarse and fine aggregates in separate, covered bins.

D. Store bulk cement in covered bins.

PART 2 PRODUCTS

2.1 MATERIALS

A. Concrete: Ready-mixed, ASTM C94.

B. Cement: ASTM C150.

Type II or Type V may be used if type is not indicated on drawings.

Type V required at all foundations, retaining walls, fence post footings and any other concrete in contact with soil.

C. Fly Ash: ASTM C618.

CAST-IN-PLACE CONCRETE 033000-5

D. Aggregate: ASTM C33.

Aggregate size for footings, grade beams and pile caps, and filling of steel piles must be 1- 1/2 inch maximum.

Aggregate for walls, support slabs, beams, pilasters, columns, and slabs on grade must be 1 inch maximum, and be mixed with pea gravel (minimum of 10 percent by weight, maximum of 15 percent by weight).

All aggregate must be of a type producing low shrinkage.

a. Coarse Aggregate: Granite, limestone, or Clayton blue rock.

b. Fines: Clean and well graded sands.

E. Acquire cement, flyash, and aggregate from same source for all Work.

F. Water: Potable, clean, not detrimental to concrete, containing less than 500 ppm of chlorides.

G. Lightweight Aggregate: ASTM C330/C330M ¾ inch nominal maximum aggregate size.

H. Air-Entraining Admixture: ASTM C260/C260M

I. Chemical Admixtures: Certified by manufacturer to be compatible with other admixtures that do not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride in steel-reinforced concrete.

2.2 ADMIXTURES

A. Water-Reducing Admixture: ASTM C494.

Manufacturers/Products:

a. Euclid Chemical Company; Eucon WR.

b. Master Builders/BASF; Pozzolith 200N.

c. Sika Chemical Corp; Plastocrete 161.

B. Water-Reducing and Retarding Admixture: ASTM C494.

Manufacturers/Products:

a. Euclid Chemical Company; Eucon Retarder-75.

b. Master Builders/BASF; Pozzolith 80N.

c. Sika Chemical Corp; Plastiment.

d. W.R. Grace; #WRDA-64.

C. High Range Water-Reducing Admixture (Superplasticizer): ASTM C494.

Manufacturers/Products:

a. Euclid Chemical Company; Eucon 37.

b. Nox-crete Products Group; Plastiflow R.

CAST-IN-PLACE CONCRETE 033000-6

c. W.R. Grace; # ADVA 360; Superplasticizer.

D. Air-Entraining Admixture: ASTM C260.

Manufacturers/Products:

a. W. R. Grace; DARAVAIR AT 60.

b. Cemix Products, Ltd; Cemix A.E.A.

c. Master Builders/BASF; MBAE90.

E. Accelerator: ASTM C494, Type C or E; Noncorrosive, nonchloride.

Manufacturers/Products:

a. Euclid Chemical Company; Accelguard 80.

b. Master Builders/BASF; Pozzutec 20.

c. W.R. Grace; Doraset 400.

Submit test report from independent testing laboratory of results of an acceptable accelerated corrosion test method such as that using electrical potential measures, of minimum one year duration, demonstrating noncorrosive nature of product.

F. Bonding Admixture: Acrylic latex, nonrewettable type.

Manufacturers/Products:

a. Euclid Chemical Company; Flex-Con.

b. Dayon(Burke), Conspec; Strong Bond.

c. Master Builders/BASF; Thoro System Products, Acryl 60.

d. W. R. Grace; Daraweld C.

G. Mineral Admixture: Fly Ash Pozzolan; ASTM C618, Class F supplementary optional chemical and physical requirements of Tables 1A and 2A, except that the maximum sulfur trioxide must be 4 percent and the maximum loss on ignition must be 1.5 percent.

Manufacturers/Products:

a. Headwaters Resources; Fly Ash.

b. Boral Material Technologies.

c. The SEFA Group.

H. Corrosion Inhibitor: ASTM C494 Type C, All reinforced (including clips and ties) concrete in contact with soil must have a corrosion inhibitor added. The dosage rate for the corrosion inhibiting admixture must protect the reinforcing bars in concrete from chloride concentrations as high as 7,000 ppm. If a calcium nitrite inhibitor is used, the dosage rate must not be less than two gallons per cubic yard of concrete. The calcium nitrite inhibitor solution must contain a minimum of 30 percent calcium nitrite. A corrosion inhibitor is not necessary in any concrete placed without embedded steel.

CAST-IN-PLACE CONCRETE 033000-7

Manufacturers/Products:

a. W.R. Grace; DCI.

b. Sika; CNI.

c. Euclid Chemical Company; Arrmatect.

I. Concrete Encasement Coloring Agent: Mix into concrete as required at the rate of 10 pounds of agent per cubic yard of concrete.

2.3 ACCESSORIES

A. Curing and Sealing Compounds:

For Typical Exterior Flatwork (such as walks and driveways): Dissipating, film-forming, non-yellowing, water-based resin liquid curing membrane, with not less than 15 percent solids, clear with fugitive dye; ASTM C309, Type 1D, Class B; conforming to volatile organic compound (VOC) limits established in South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings.

a. Acceptable Manufacturers/Products:

1) W.R. Meadows; 1100-Clear.

2) Burke; Aqua Resin.

B. Sheet Curing Material: ASTM C171.

C. Sealers/Hardeners/Densifiers, for All Interior Exposed Concrete Floors: as noted on the drawings.

D. Bonding Agent: Polyvinyl acetate, rewettable type, with visible tinted pigment to verify coverage.

Manufacturers/Products:

a. Euclid Chemical Company; Euco-Weld.

b. Larsen Products Corp.; Weld-Crete.

c. Dayton-Superior; Concrete Bonder J41.

d. CGM Incorporated, Perma Weld.

E. Bond Breaker: Nonstaining type, providing positive bond prevention.

Manufacturers/Products:

a. Nox-Crete; Silcoseal 2000F.

b. EDOCO Construction Chemical; Clean Lift 90 Bond Breaker WB.

c. Dayton Superior Chemical; Maxi-Tilt “E” WB Bond Breaker.

F. Structural Epoxy Bonding Adhesive: Two component, 100 percent solids compound suitable for use on dry or damp surfaces.

CAST-IN-PLACE CONCRETE 033000-8

Manufacturers/Products:

a. Euclid Chemical Company; Eucopoxy LPL, MV or Euco#452 Eprox System, MV.

b. Sika Chemical Corporation; Sikadur 32 Hi-Mod.

c. EDOCO Construction Chemicals; Burkepoxy MV.

d. Dayton-Superior; Resi-Bond J58.

G. Nonshrink Grout: ASTM C1107; nonmetallic; capable of achieving a 95 percent bearing under a 4 by 4-foot baseplate when grout is placed at a fluid consistency.

Manufacturers/Products:

a. Euclid Chemical Company; Euco N-S Grout, or Hi-Flow Grout.

b. Master Builders/BASF; Masterflow 713 plus, Masterflow 928.

c. EDOCO Construction; EDOCO Nonferrous Nonshrink Grout.

d. W.R. Meadows; “Sealtight 588” Precision Grout.

e. Dayton-Superior; Sure-Grip High Performance Grout.

f. Sika Chemical Corporation; Sika Grout 212.

H. Injection Grout for Splice Sleeves:

Early Strength: 3,000 psi or greater in 24 hours.

Ultimate Strength: 9,500 psi or greater in 28 days.

Nonshrink; capable of completely filling voids within sleeves.

Manufacturers/Products:

a. Erico In., Lenton Interlock; Erico Hy10L Grout.

b. Splice Sleeve North America, Inc.; SS Mortar.

c. Dayton Superior, Richmond DB Grout Sleeve Splice System; DBGS Splice Grout.

I. Patching Mortar: Epoxy type, 100 percent solids, suitable for use on damp or dry surfaces.

Manufacturers/Products:

a. Euclid Chemical Company; Euco 456 Mortar.

b. Sika Chemical Corporation; Sikadur 43 Patch-Pak.

c. EDOCO Construction Chemicals; Burkepoxy Mortar.

J. Patching Compound for Vertical or Overhead Applications: Free flowing, polymer modified, cementitious topping.

Manufacturers/Products:

a. Euclid Chemical Company; Verticoat.

b. Dayton-Superior; Poly-Fast FS.

c. ARDEX Engineered Cement; ARDEX Poly-top.

d. Sika Chemical Corporation; Sikatop 121 Plus.

K. Abrasive Aggregate for Nonslip Finish.

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Manufacturers/Products:

a. Euclid Chemical Company; Nonslip Aggregate.

b. Lambert Corp; EMAG 20.

c. BASF Construction Chemicals; Frictex-NS.

d. Dayton-Superior; Emery Nonslip.

L. Evaporation Retardant.

Manufacturers/Products:

a. Euclid Chemical Company; Eucobar.

b. Master Builders/BASF; Confilm.

c. W.R. Meadows Inc; Evapre.

d. Dayton-Superior; SureFilm (J-74)

e. Creteseal, CS2000.

2.4 MIX DESIGNS

A. Cast-In-Place Concrete:

Mix Designs must be in accordance with CBC Section 1905 and ACI 318, Section 5.2.

Concrete mixes must be designed to meet strengths specified and be of uniform density without segregation when placed.

Water-cement ratio which must control the amount of total water added to concrete for the following conditions:

Concrete With Superplasticizer

Without Superplasticizer

Aggregate Size W/C Ratio W/C Ratio

1 inch 0.385 0.45 3/4 inch 0.375 0.44

Air Content:

a. 4 to 6 percent for severe exposure such as concrete in exterior or freezing conditions.

b. 1.5 to 3.5 percent for mild exposure of interior condition.

Fly Ash:

c. Fly ash must be used only in mix designs with Portland cement Type II and IIA and must not be used with high early strength Portland cement Type III.

d. Reduction of Portland cement, by weight, is acceptable with addition of an equal weight of fly ash provided the cement reduction is not be less than 25 percent nor more than 40 percent when compared to the mix design without fly ash.

Water Reducers:

CAST-IN-PLACE CONCRETE 033000-10

e. Use water-reducing admixtures in all concrete without superplasticizers.

f. Use water-reducing admixtures in all concrete with superplasticizers to allow proper mixing prior to adding superplasticizer.

Superplasticizers:

g. Use type as recommended by manufacturer in the applicable temperature ranges allowed in all hydraulic structures and headworks.

h. Use superplasticizer in all concrete for pond structures.

i. Accomplish variations in slump, working time, and air content for flowable mixes by increasing or reducing superplasticizer dose or air-entraining admixture dose at the ready-mix plant only. Adjust the slump or air content at the jobsite by adding admixtures for a particular load when approved by the Owner, then the plant dose must be adjusted to meet the specifications for the rest of the placement. This additional dosage at the jobsite must be through an approved dispenser, supplied by the admixture manufacturer and otherwise at the Contractor’s option.

j. Effect on Slump: Maintain required slump throughout time of concrete placement and consolidation. Discontinue use of superplasticizer if it fails to maintain slump in required range.

k. Meet design strengths, slumps, water-cement ratio, and other requirements as specified at slump required for placement.

l. Use water reducers in combination with superplasticizers as required for mixing.

Specifically Prohibited Admixtures:

m. Admixtures containing hydrogen chloride, calcium chloride, or thiocyanates.

n. Admixtures containing more than 0.05 percent chloride ions.

Unspecified admixtures will not be permitted, unless accepted by the Owner, and under condition that the Independent Testing Agency modifies mix design as necessary, and each such modification is approved by the Structural Engineer.

Concrete may be designed for either pump or conventional placement. If pumping will be used, the mix must be specifically designed for pumping and must be so designated.

Mix designs are subject to review. Final acceptance of materials will depend upon strength testing after placement.

B. Nonshrink Grout: Mix in accordance with the manufacturer’s printed instructions, using potable water from a domestic source.

C. Dry Pack: Mix in proportions, by volume, one part cement to two and one half parts fine aggregate, screening out materials retained on a No. 4 sieve. Mix with water to a consistency such that, when a ball of mixture is compressed in the hand, it will maintain its shape, showing finger marks, but not showing any surface water.

D. Patching Mortar: Mix in proportions, by volume, one part cement to two parts fine aggregate.

Design Requirements: As indicated in Part 3.

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2.5 MIXING

A. Batch Plant Conditions:

Equipment and plant must be capable of weighing, proper segregation and efficient handling, and must be subject to approval. Equipment and plant processes not approved must not be used in Work.

Use approved automatic metering capable of determining moisture content of sand.

B. General Requirements:

Concrete mixing must comply with CBC Section 1905.8 and ACI 318 Section 5.8.

Mix cement, fine and coarse aggregates, admixtures, and water to exact proportions of mix designs.

Measure fine and coarse aggregates separately in accordance with approved method which provides accurate control and easy checking.

Adjust grading to improve workability; do not add water, unless otherwise recommended by the Owner.

Maintain proportions, values, and factors of approved mixes throughout Work.

C. Admixtures: Use automatic metering dispenser to introduce admixture into mix.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that field conditions are acceptable and are ready to receive the Work. Notify the Owner, in writing, of any conditions requiring corrective action.

B. Verify requirements for concrete cover over reinforcement.

C. Verify that anchors, seats, plates, embeds, reinforcement, and other items to be cast into concrete are accurately placed, positioned securely, and will not cause hardship in placing concrete.

D. Verify all controlling dimensions, for the Work of this Section and related Work, by field measurement prior to start of construction.

E. If unsatisfactory conditions exist, do not commence the installation until such conditions have been corrected. Beginning installation means acceptance of existing conditions.

3.2 PREPARATION

A. Prepare previously placed concrete by cleaning with steel brush and applying bonding agent in accordance with manufacturer’s written instructions.

B. In locations where new concrete is dowelled to existing work, install dowels as indicated on Contract Documents.

CAST-IN-PLACE CONCRETE 033000-12

C. Remove loose dirt and foreign matter from excavations and forms; remove standing water and saturated soil from excavations and from cavities. Placing concrete in standing water must not be permitted. Hardened concrete and foreign materials must be removed from the inner surfaces of conveying equipment.

D. Thoroughly clean reinforcement and other embedded items free from loose rust and other objectionable matter.

E. Thoroughly wet wood forms, except coated plywood, and adjacent concrete at least one hour in advance of placing concrete; securely close cleanout and inspection ports; repeat wetting as necessary to keep forms damp.

F. Moisten subgrade or sand associated with under-slab vapor barrier system one day prior to placing concrete; maintain moisture until concrete placement.

G. Maintain equipment clean and of sufficient quantity and capacity to efficiently execute the Work.

H. Verify subgrade and forms have been checked for line and grade, and the Work areas have been observed and approved by the Owner.

I. Before depositing new concrete on or against hardened concrete, retighten forms and prepare surface of hardened concrete as follows:

Concrete which has been placed longer than 6-1/2 hours: Sandblast to roughen surfaces.

Thoroughly clean of foreign matter and laitance and moisten with water.

Concrete which has been placed longer than 3-1/2 hours but less than 6-1/2 hours: Remove all laitance from concrete by wire brushing.

Apply bonding agent as required in accordance with manufacturer’s instructions.

3.3 CONCRETE PLACEMENT

A. Transporting:

Concrete must be handled from the mixer to the place of final deposit as rapidly as practicable by methods which prevent the separation or loss of the ingredients, in accordance with ASTM C94.

Concrete must not be dropped freely where reinforcing bars will cause segregation, nor must it be dropped more than 4 feet.

Spouts, elephant trunks, or other approved means must be used to prevent segregation.

Concrete may be pumped from the transit mixer to places of deposit, provided that information on mix design adjustments, equipment data, procedures, and the entire operation are submitted for the Owner’s prior review.

a. Pumps must be suitable for the mix, aggregate size, and slump required.

b. Pump operators must be experienced in the operation of the equipment to be used.

Use of aluminum equipment to transport concrete is not permitted.

CAST-IN-PLACE CONCRETE 033000-13

B. Depositing:

Place concrete in accordance with CBC Section 1905.10.

Maintain during placement or until the completion of the section, a plastic surface approximately horizontal.

Prevent displacement of reinforcement, anchor bolts, welding plates, and other items required to be embedded in concrete.

Before concrete sets, completely remove concrete spilled on forms or reinforcing steel in portions of structure not to be immediately concreted.

Place concrete continuously between predetermined expansion, control, and construction joints. An interruption in placing of more than 60 minutes will be cause for shutting down concrete placement operations and the wasting of remaining mixed concrete, concrete in hoppers, and concrete in mixers. In case such interruption occurs, provide construction joints where and as directed, and cut concrete back to such line, cleaning forms and reinforcing as specified herein.

Keep a record of the time and data of placing the concrete in each portion of the structure.

Keep reports until the completion of the structure, and keep reports open to the review of the Owner.

C. Consolidation:

Thoroughly consolidate concrete by puddling with suitable tools during placement and thoroughly working around reinforcement, embedded fixtures, and into the corners of forms.

In addition to manual spading and tamping, internally vibrate concrete with high-speed mechanical vibrators of sufficient amplitude for adequate consolidation.

Vertically insert and remove hand-held vibrators at points 18 to 30 inches apart.

Do not use vibrators to transport concrete in forms.

Vibrate concrete minimum amount required for consolidation.

Do not vibrate concrete placed for slab on grade except at slab edges adjacent to edge forms and at items embedded in the slab.

3.4 FINISHES

A. Formed Surfaces:

Smooth Finish: Obtain by the use of plywood, sheet metal, or lined wood forms; no fins, pockmarks, and other irregularities must be present in the exposed surfaces of concrete.

Scored Finish: Roughen surface in an approved manner or etch with sharp-pointed steel tools to key or otherwise improve the mechanical bond of the surface. Such scoring or roughening must disturb or otherwise roughen at least 10 percent of the area so scored.

Grout-Cleaned Finish:

a. Prepare grout of two parts normal Portland cement, one part white cement, and 4 1/2 parts fine aggregate mixed with water to consistency of thick paint.

b. Wet surfaces and rub grout on surfaces using rubber or cork float so that small voids and imperfections are filled.

c. Allow surfaces to dry for approximately one hour, scrape off excess grout with trowel, and then rub surfaces with burlap sacks.

CAST-IN-PLACE CONCRETE 033000-14

d. Keep surfaces continuously damp for 24 hours.

e. Provide on exposed wall surfaces, vertical surfaces of equipment foundations, and other vertical surfaces for unless otherwise indicated or specified.

B. Unformed Surfaces:

Floating:

a. Provide as first stage for flatwork finishes, unless otherwise specified.

b. Thoroughly consolidate areas, strike off to screeds tamp to recess large aggregate below surface level.

c. Fill voids, reconsolidate, and re-level surfaces as necessary.

d. Do not proceed with subsequent finishes until surface water has absorbed or dried off and surface sheen has become dull.

Wood Float Finish:

e. Provide as second stage for other finishes, unless otherwise specified.

f. Using approved floating machines or hardwood trowels, float surfaces to required planes and shapes, working just sufficiently to bring surfaces to uniform condition.

g. Work no more than necessary to achieve uniform texture free from irregularities and screed marks; except where receiving fills or mortar beds, leave surfaces in roughened, granular condition for good mechanical bond.

h. Cut and fill surfaces as necessary to true up.

i. When followed by other finishes, floating must leave small amount of mortar on surfaces without excess of water.

j. Do not proceed with subsequent finishes until surface water has absorbed or dried off and concrete has set sufficiently to prevent fines or water from being worked to the surface.

k. Finish texture must be fine-grained and granular to provide good slip resistance and must be reasonably free from directional trowel marks.

l. Provide for exterior and interior surfaces of buildings, unless otherwise indicated or specified.

Steel Trowel Finish:

m. Using finishing machines or steel trowels, trowel surfaces to produce a dense, hard, smooth steel trowel finish.

n. Commence troweling in one pass just sufficiently to flatten floated surface.

o. Wait until concrete has set sufficiently; then resume steel troweling; continue and repeat as required to obtain a hard steel trowel finish, free of blemishes, ripples, and trowel marks.

p. Do not:

1) Use cement or sand dusting to absorb or otherwise remove surface water.

2) Commence troweling too soon on freshly placed concrete.

3) Overwork surfaces by excessive troweling in an area in one pass.

q. Work out lips, uneven levels, and other irregularities prior to final troweling.

r. Neatly tool exposed edges, expansion joints, curbs, arises, and other details.

CAST-IN-PLACE CONCRETE 033000-15

s. Surface across joints must be level and free from offsets.

t. Provide for interior surface not otherwise indicated or specified.

Broom Finish:

u. Draw a soft-bristled push broom over an initially trowel-finished surface.

v. When coarser surfaces are desired, use a stiffer-bristled broom.

w. Broom finish must provide a nonslip surface, even if exposed to rain.

x. Provide for exterior flatwork and as indicated or specified.

3.5 CURING

A. Curing must immediately follow finishing and must be accomplished for each portion of the Work.

B. Wall Surfaces:

Cure for a minimum of seven days by form-curing with forms wetted down thoroughly at least four times daily until forms are removed.

If forms removed in less than seven days, follow immediately with membrane curing if outside of building, and with fog spray to maintain moist condition inside of building.

C. Flatwork Surfaces:

Water cure all concrete work, unless noted otherwise.

Membrane cure exterior pavement and slab surfaces.

Where hardener/densifier is to be used as specified in Section 09 61 00, cure in accordance with hardener manufacturer’s printed instructions.

Do not use liquid membrane curing compounds on interior surfaces or surfaces to receive other finishes.

D. Concrete Curing Compounds and Sealers:

Apply in accordance with manufacturer’s printed instructions.

Apply at rate consistent with manufacturer’s definition of normal traffic areas.

For heavy traffic areas, apply sealer/hardener/densifier in accordance with Section 09 61 00

– Exposed Concrete Flooring Treatment.

E. Maintain concrete temperature above 50 degrees F during curing.

F. Protect concrete from damage during the curing period.

3.6 TOLERANCES

A. Tolerances must be in accordance with ACI 117.

B. Building Slabs-on-Grade:

CAST-IN-PLACE CONCRETE 033000-16

Comply with Random Traffic Floor Surface Finish Tolerances for Flat surfaces.

Utilize the 10-foot Straightedge Method to establish compliance.

Tolerance measurements will be made by the Owner, or his assignee, within 72 hours of concrete placement.

C. Anchor Bolts: Setting Tolerances must be in accordance with AISC Code of Standard Practice, Section 7.5.

3.7 FIELD QUALITY CONTROL

A. Place concrete during hot weather in accordance with ACI 305R.

B. Place concrete during cold weather in accordance with ACI 306R.

C. Do not place concrete during precipitation unless adequate protection is provided.

3.8 TESTING AND INSPECTIONS

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

B. Verification of use of required design mixtures.

C. Concrete placement, including conveying and depositing.

D. Curing procedures and maintenance of curing temperature.

E. Verification of concrete strength before removal of shores and forms from beams and slabs.

F. Batch plant inspections: On a random basis, as determined by Owner.

G. Testing and inspection will be in accordance with the Verification and Inspection Schedules provided the owner.

H. Provide notification to Owner when concrete testing or inspections are required.

I. Do not place concrete until reinforcing and embeds have been inspected and approved by the Owner.

3.9 REPAIR AND ADJUSTMENT

A. Immediately after removing formwork, concrete surfaces must be examined by the Owner, and pour joints, voids, rock pockets, tie holes, and similar defects must be patched at once as directed by the Owner.

B. Submit information on patching mixture and method proposed for use to the Owner for review prior to commencing repair work.

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C. Patch honeycomb, aggregate pockets, voids, and holes as follows, unless otherwise directed by the Owner:

Chip out until sound concrete is exposed to minimum depth of one inch.

Prepare patching mortar with approximately two parts normal Portland cement, one part white cement, and nine parts fine aggregate; vary proportions of cement as necessary to match color of adjacent concrete.

Saturate surfaces with water and fill cavities with patching mortar.

Cure patches as specified for concrete.

D. Patching Tie Holes:

Cut nails and tie wires for form ties flush with the face of the concrete, and leave surfaces smooth and clean.

Remove metal spreader ties on exposed concrete Work, or snap off inside the wall surface.

Patch resulting cone pockets on exposed surfaces as described above.

3.10 DEFECTIVE CONCRETE

A. Concrete not conforming to required lines, details, dimensions, tolerances, finishes, strength, or other specified requirements must be considered defective. Concrete with excessive honeycomb or embedded debris. Notify the Owner upon discovery of these conditions.

B. With the prior acceptance of the Owner, some minor defective Work may be…