02_West Ramp - General Spec.pdf

SELFRIDGE ANGB, MICHIGAN

02 61 00 1 REMOVAL AND DISPOSAL OF

CONTAMINATED SOIL

SECTION 02 61 00 - REMOVAL AND DISPOSAL OF CONTAMINATED MEDIA

PART 1 - GENERAL

1.1 SUMMARY

A. This section describes the Work involved in removal, handling, testing, and disposal of hazardous and nonhazardous soil, debris, excavated waste, and wastewater if such material is encountered or generated during performance of the Work.

1.2 REFERENCES

A. The following is a list of standards which may be referenced in this section:

1. U.S. Code of Federal Regulations (CFR):

a. Environmental Protection Agency (EPA), Title 40, Identification and Listing of Hazardous Waste:

1) Part 261.21, Characteristics of Ignitability.

2) Part 261.22, Characteristics of Corrosivity.

3) Part 261.23, Characteristics of Reactivity.

b. Occupational Safety and Health Administration (OSHA), Title 29, Occupational Safety and Health Standards: Part 1910.120, Hazardous Waste Operations and Emergency Response.

2. Section 201120c of Part 201, Environmental Remediation, of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended (Act 451).

3. Resources Conservation and Recovery Act (RCRA).

4. Toxic Substances Control Act (TSCA).

1.3 DEFINITIONS

A. Excavated Waste: Buried solid waste, refuse, demolition waste, construction waste, and special waste, and Site soils. Excavated waste does not include demolition debris, solid waste, refuse, construction waste, or special waste created by Contractor incidental to the Work.

B. Free Product: Free-standing petroleum or chemical liquid product present in excavation or floating on water in excavation.

C. Hazardous Soil and Debris: Material which qualifies as a hazardous or toxic waste as defined by the Resources Conservation and Recovery Act (RCRA) or the Toxic Substances Control Act

(TSCA).

02 61 00 2 REMOVAL AND DISPOSAL OF

D. Nonhazardous Soil and Debris: Material which does not qualify as a hazardous or toxic waste as defined by RCRA or TSCA and includes excavated waste as defined above.

E. Wastewater: Water produced by Contractor’s operation, including groundwater removed from the Site, stormwater entering excavation pits despite controls, washdown water, used decontamination water, and other water that requires handling by Contractor to accomplish the Work. Wastewater may be hazardous or nonhazardous and shall require special handling and testing.

F. Media: Waste materials generated by contractor during construction activities.

G. Site or Environmental Restoration Sites (ERP) Site:

H. Sites are areas of concern (AOCs) within the project area that have known soil and/or groundwater contamination. They will be identified for each Delivery Order Requirement.

1.4 SUBMITTALS

A. Informational Submittals:

1. Prior to commencement of the Work submit the following:

a. Permits and certification for soil, debris, and waste haulers.

b. Permits, certification, and acceptance requirements for proposed soil, debris, and wastewater disposal or treatment facilities.

c. Qualifications:

1) Contractor and Subcontractor documentation of experience.

2) Contractor’s Personnel: Documentation personnel proposed for Work with contaminated materials have been 40-hour trained in accordance with

29 CFR 1910.120.

3) Contractor’s Consultant: Documentation of experience and registration.

4) Waste Transporter: Documentation of licensing and equipment capabilities.

5) Offsite Disposal and Treatment Facilities: Documentation of licensing, disposal requirements, and acceptance of the waste.

d. Submit Soil and Debris Analytical and Physical Characterization Testing Plan within 1 week after Notice to Proceed.

e. Inspection reports, including photographs, and other items requested by Contracting Officer.

f. Excavation and Water Control Plan demonstrating controls for migration of water into active excavation areas.

g. Site-specific Health and Safety Plan:

1) In accordance with 29 CFR 1910.120 and this specification.

2) Include Contractor-proposed monitoring, personnel protective gear, worker training and certifications, and emergency procedures.

3) State criteria or measures when air monitoring and work by HAZWOPER-trained personnel are no longer necessary.

02 61 00 3 REMOVAL AND DISPOSAL OF

h. Emergency Response Plan: Details how to handle an emergency during execution of the Work (for example, encountering drums with unknown contents;

encountering pockets of hazardous atmospheres; response to spills caused by excavation of materials by Contractor or Contractor’s equipment; response to fire or injured personnel).

2. During excavation and removal activities submit the following:

a. Daily job progress log detailing information on the review of progress with respect to previously established milestones and schedules, major problems, corrective actions, injury reports, equipment breakdown, and sampling results.

b. Weekly excavation plans.

c. Copies of manifests or bills of lading, and waste disposal or treatment facility receipts, including weight or volume tickets, for waste materials, solid or liquid, removed from Site and transported to disposal facilities.

1.5 QUALITY ASSURANCE

A. Qualifications:

1. Contractor Qualifications: Conform to the following qualifications:

a. Work with contaminated materials must be performed by Contractor personnel formally trained in procedures for contaminated soil and water removal (e.g., HAZWOPER training), having maintained full-time office and with proven history of successfully executing similar projects for a minimum of 3 years.

b. Work must be accomplished by Contractor with proper equipment and personnel experienced in similar work.

c. Contractor personnel shall be 40-hour trained in accordance with

29 CFR 1910.120.

2. Contractor’s Consultant, Licensed in the State of Michigan: Shall have minimum of 3 years’ experience in planning, sampling, and performing quality control in remediation of contaminated sites.

3. Waste Transporter: Licensed waste haulers with trucks equipped with containment and cover systems to transport solid and liquid waste materials on public streets and roads without spillage.

4. Offsite Disposal and Treatment Facilities: Shall be licensed Disposal and/or Treatment facilities to accept the various waste types and quantities to be generated during the Work.

B. Codes and Regulations:

1. Comply with all federal, state, and local regulations in handling, testing, transporting, and disposing materials and in performing the Work.

2. Prior to commencing removal operations, obtain applicable local, state, and federal permits and licenses that directly impact Contractor’s ability to perform the Work.

1.6 SITE SPECIFIC HEALTH AND SAFETY PLAN

02 61 00 4 REMOVAL AND DISPOSAL OF

A. The Contractor is responsible for developing site specific health and safety plans addressing personnel exposures that could be encountered during demolition activities in compliance with all OSHA/MIOSHA regulations on these sites. The health and safety plan will need to address any controls to be implemented by the Contractor to prevent exposures to base personnel during the demolition activities.

B. The Contractor will be required to notify base personnel and/or subcontractors working onsite of the health and safety plan. All personnel onsite including Government personnel shall receive a briefing on the health and safety plan prior to entering construction areas where contaminated soils are present. Documentation of such briefings will need to be maintained by the Contractor and provided to the Government at the end of the Contract.

C. Where levels of contamination in work activities could result in potential exposure above action levels, exclusion zone will be set up by the Contractor to prevent any nonqualified personnel from entering the area.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Plastic Sheeting:

1. Nylon-reinforced polyethylene sheeting, opaque/frosted.

2. Thickness: Minimum 10 mils.

B. Tape and Glue: Capable of sealing joints of adjacent sheets of plastic and capable of adhering under wet conditions.

C. Ballast: Sandbags or other ballast materials of sufficient weight and quantity to maintain polyethylene sheeting securely in place.

PART 3 - EXECUTION

3.1 GENERAL

A. Contractor shall be responsible for the following:

1. Providing means, methods, and equipment necessary for sampling, excavating, collecting, handling, processing, loading, and disposing of hazardous and nonhazardous soil, debris, excavated waste, and wastewater generated as part of the Work.

2. Selecting, providing, and coordinating with qualified transporters, disposal facilities, and treatment facilities for transporting, disposing, and documenting hazardous and nonhazardous waste transportation and disposal in accordance with this Specification.

3. Complying with federal, state, and local requirements for transporting solid and liquid materials from Site through applicable jurisdictions, and be responsible for associated fines, penalties, and other costs for noncompliance.

02 61 00 5 REMOVAL AND DISPOSAL OF

4. Obtaining and submitting acceptance letters and receipts for materials disposed at each facility.

5. Including provisions in its construction sequence and schedule for sampling, analysis, and review of sampling results.

6. Coordinating work methods with Contracting for all actions pertaining to handling, storage, characterization, sampling, transportation, and disposal of all waste media out of the Site.

10 Working days shall be provided for review of proposed methods, which must be approved through the Contracting Officer prior to initiating field activities.

B. Excavation and Water Control Plan:

1. Plan shall include, but not be limited to, the following:

a. Means and sequencing of excavation.

b. Proposed locations, layout, and controls for materials stockpile areas.

c. Numbers and types of proposed equipment.

d. Methods of handling, segregating, and stockpiling excavated materials.

e. Methods of controlling water and sediment in excavation and proposed stockpile areas.

f. Proposed locations, types, and capacities of temporary water storage facilities, if required.

g. Sheeting, shoring, and bracing, as required.

h. Disposal of Groundwater Dewatered from the Site: Disposal shall require special handling procedures. Contractor shall be responsible for containerizing, testing, characterizing, and disposing of groundwater from the Site.

C. Soil and Debris Analytical and Physical Characterization Testing Plan:

1. Plan shall include, but not be limited to, the following:

a. Plan view showing proposed sample locations, depths, and number of samples for characterization and disposal facility acceptance testing, and for confirmatory testing, if required.

b. Sampling and analysis of areas found to contain hazardous materials. Results shall be used to determine if material should be handled and disposed of as hazardous and to define extent of this material.

c. Detail sampling and characterization of other materials excavated from Site.

d. Testing requirements shall include chemical and physical analyses necessary to assess at a minimum the contaminants of concern as listed in the referenced Investigative Reports.

e. Sampling plan shall characterize the materials, and conform to treatment and disposal facility acceptance requirements, if any.

f. Proposed testing laboratory, analyses required, and testing methods.

D. Provide qualified Licensed Site Professional to oversee and supervise sampling, excavation, and waste handling operations at Site and to coordinate with proposed disposal and treatment facilities.

02 61 00 6 REMOVAL AND DISPOSAL OF

3.2 WASTE CHARACTERIZATION SAMPLING AND ANALYSIS

A. Prior to commencing waste removal from Site, perform onsite sampling and laboratory testing to screen Site for potential hazardous waste and to conform to acceptance criteria of proposed disposal or treatment facilities. Sampling and testing shall be done in accordance with approved Soil and Debris Analytical and Physical Characterization Testing Plan.

B. Allow a minimum of 4 weeks in schedule for testing and review by disposal facility and Contracting Officer.

C. At a minimum, test for contaminants of concern listed in the referenced Site Investigative Reports.

3.3 WASTE EXCAVATION AND DEWATERING

A. Hazardous soil, wastewater, and debris may be encountered during excavation for facilities at Site. Material shall be removed, handled, and disposed in accordance with all state requirements for media relocation during work activities under Section 201120c of Part 201, Environmental Remediation, of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended (Act 451), and other applicable state and federal regulations if contaminated media will be relocated to or from these AOCs.

B. Perform excavation in accordance with requirements of Section 31 20 00, Earthwork, unless otherwise specified in this section and approved Excavation and Water Control Plan.

C. Water control shall be provided in accordance with the approved Excavation and Water Control Plan.

D. Conduct Work in excavated area in accordance with Contractor’s Site-specific safety plan.

E. Excavate methodically and submit weekly excavation plans no later than Thursday of the week preceding the Work.

F. Excavations shall proceed in lifts no greater than 1 foot thick. At Contracting Officer’s request, excavate test pits no greater than 4 feet deep in advance of the excavation for the purpose of sampling and delineating material to be excavated.

G. Immediately stop excavation and notify Contracting Officer upon encountering material unanticipated or outside scope of this Specification. This may include, but is not limited to, free product, tanks, ACM, or solid material other than excavated waste.

H. Over-excavation:

1. Excavate only the amount of soil required to construct the Work shown on Drawings.

2. Over-excavation of additional contaminate soil/debris, solid waste, or soil beyond amount required for construction of foundation and subgrade preparation shall not be performed without written authorization by Contracting Officer.

3. Over-excavation of contaminate soil/debris, solid waste, or soil that is not authorized by Contracting Officer shall be disposed and replaced at Contractor’s own expense.

02 61 00 7 REMOVAL AND DISPOSAL OF

4. Excess dewatering of groundwater to include contaminated groundwater that is not authorized by the Contracting Officer shall be disposed at Contractor’s own expense.

3.4 FREE PRODUCT REMOVAL

A. In the event that free product is encountered in the excavation:

1. Immediately notify Contracting Officer to determine appropriate sampling, removal, and disposal requirements.

2. Remove product in a manner that minimizes the spread of contamination into previously uncontaminated zones by using a containment recovery and storage system to contain and remove product.

3. Provide onsite storage suitable for recovered material. Media contaminated with free product shall be containerize and/or stockpiled in a manner to prevent off site migration of contamination from occurring.

4. Material shall remain onsite until Contractor completes a characterization analysis.

5. Material shall not be transported to a disposal facility until analysis is complete and waste profiles have been approved by the Contracting Officer

3.5 WASTE HANDLING AND DISPOSAL

A. To the extent possible, schedule and coordinate Work such that excavated waste and wastewater can be loaded and removed from Site with minimal handling or storage requirements.

B. Contractor selected Disposal facilites for contaminated media shall be a licensed to received waste generated.

C. Where temporary storage or stockpiling is necessary, provide and maintain adequate containment and environmental controls, including but not limited to containers, dikes, plastic linings, plastic covers, erosion and sediment controls, and other measures of sufficient capacity to store materials without unauthorized release of contaminants into ground, air, or surface water.

D. Site soils shall either be containerized or shall be stored on top of plastic sheeting on an impervious surface and covered with plastic sheeting.

E. Contaminated wastewater that is generated from excavations within the Site shall be containerized, characterized, and disposed of in accordance with means and methods selected by the Contractor and approved by the Contracting Officer. All costs and labor associated with containerization, characterization, and disposal along with any necessary permits shall be the responsibility of the contractor.

F. Provide labor, equipment, and materials to stabilize or process waste materials as necessary to meet minimum requirements for offsite transport and disposal.

02 61 00 8 REMOVAL AND DISPOSAL OF

G. All excess soil for areas outside the Site can be relocated on the installation to areas approved by the Government.

1. If soil relocation areas are not already included and identified on the soil erosion control plan for this project, modifications to the soil erosion control plan will need to be made and coordinated for approval with the Macomb County Soil Erosion office by the Contractor following approval from the Government.

2. If any excess soils for areas outside the Site will be taken off the installation, those soils must be disposed of in a licensed Type II disposal facility and meet the same requirements as if the soils were coming from the Site as specified above, with the exception of the special stockpiling provisions specified above.

H. Transportation:

1. Provide sealed or lined vehicles and other measures necessary to prevent spillage or tracking of waste materials, mud, wastewater, or other debris on local streets or roads.

2. Inspect and document vehicles and containers for proper operation and covering.

3. Inspect vehicles and containers for proper markings, manifests, and other requirements for waste shipment.

4. Perform and document decontamination procedures prior to leaving Site and again before leaving disposal or treatment facility.

I. Obtain and submit receipts of confirmation from disposal or treatment facilities that solid and liquid wastes were accepted for disposal or treatment, including weight tickets or other confirmation of quantities received.

3.6 EQUIPMENT DECONTAMINATION

A. Decontaminate equipment that has come into contact with hazardous soil or debris, solid waste, or impacted water by methods approved by the Contracting Officer.

B. Wastewater and sediment generated by decontamination activities shall be contained and treated or disposed of in accordance with provisions stated in this section.

END OF SECTION 02 61 00

03 30 00 1 CAST-IN-PLACE CONCRETE

SECTION 03 30 00 - CAST-IN-PLACE CONCRETE

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 cast-in-place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes, for the following:

1. Footings.

2. Foundation walls.

3. Slabs-on-grade.

4. Suspended slabs.

5. Concrete toppings.

1.3 DEFINITIONS

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

1. Fly ash and other pozzolans and ground granulated blast-furnace slag; subject to compliance with requirements.

1.4 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Submittals:

1. LEED Building Submittal Requirements:

a. Refer to Section 01 81 13, Sustainable Design Requirements, for information regarding LEED submission requirements.

b. The Contractor and/or Subcontractor shall submit the following costs for all Work associated with this Contract:

1) Labor costs.

2) Construction equipment cost.

3) Material cost.

4) Total construction cost (labor cost plus equipment cost plus material cost).

03 30 00 2 CAST-IN-PLACE CONCRETE

c. The Contractor shall submit the following information for each material type and accessory used:

1) The percentage of post-consumer recycled content in the concrete product by weight and the percentage of post-industrial recycled content in the concrete product by weight. The two recycled content figures must be stated individually.

2) The percentage of post-consumer recycled content in steel reinforcing product by weight and the percentage of post-industrial recycled content in the steel reinforcing by weight. The two recycled content figures must be stated individually.

3) Manufacturing location.

4) A letter of certification from the product manufacturer on the manufacturer’s letterhead verifying information submitted. The letter must indicate the following:

a) Project name.

b) LEED Credits Under Consideration:

Materials and Resources Credit 4.1: Recycled content.

Materials and Resources Credit 4.2: Recycled content.

Materials and Resources Credit 5.1: Local/regional material.

Materials and Resources Credit 5.2: Local/regional material.

5) Product Data and Cut Sheets: Data and cut sheets shall be submitted for each different concrete product, accessory, and other manufactured product specified. Product data and cut sheets shall be marked with the Contractor’s stamp as confirmation that the submitted products are the products installed on the project.

d. LEED Building submittal information shall be assembled into one packager per Section 01 81 13, Sustainable Design Requirements.

e. The Contracting Officer reserves the right to reject products and assemblies on the basis of incomplete or inaccurate LEED Building submittals.

C. Design Mixtures: For each concrete mixture. Submit alternate design mixtures when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

D. Steel Reinforcement Shop Drawings: Placing drawings that detail fabrication, bending, and placement. Include bar sizes, lengths, material, grade, bar schedules, stirrup spacing, bent bar diagrams, bar arrangement, splices and laps, mechanical connections, tie spacing, hoop spacing, and supports for concrete reinforcement.

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

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

F. Qualification Data: For Installer, manufacturer, testing agency.

03 30 00 3 CAST-IN-PLACE CONCRETE

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

1. Cementitious materials.

2. Admixtures.

3. Form-release agents.

4. Steel reinforcement and accessories.

5. Waterstops.

6. Curing compounds.

7. Floor and slab treatments.

8. Bonding agents.

9. Adhesives.

10. Vapor retarders.

11. Semirigid joint filler.

12. Joint-filler strips.

13. Repair materials.

H. Material Test Reports: For the following, from a qualified testing agency, indicating compliance with requirements:

1. Aggregates. Include service record data indicating absence of deleterious expansion of concrete due to alkali aggregate reactivity.

I. Floor surface flatness and levelness measurements indicating compliance with specified tolerances.

J. Field quality-control reports.

K. Minutes of preinstallation conference.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: A qualified installer who employs on Project personnel qualified as ACI-certified Flatwork Technician and Finisher and a supervisor who is an ACI-certified Concrete Flatwork Technician.

B. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities."

C. Testing Agency Qualifications: An independent agency, acceptable to authorities having jurisdiction, qualified according to ASTM C 1077 and ASTM E 329 for testing indicated.

1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing Technician, Grade 1, according to ACI CP-1 or an equivalent certification program.

2. Personnel performing laboratory tests shall be ACI-certified Concrete Strength Testing Technician and Concrete Laboratory Testing Technician - Grade I. Testing Agency

03 30 00 4 CAST-IN-PLACE CONCRETE

laboratory supervisor shall be an ACI-certified Concrete Laboratory Testing Technician - Grade II.

D. Source Limitations: Obtain each type or class of cementitious material of the same brand from the same manufacturer's plant, obtain aggregate from single source, and obtain admixtures from single source from single manufacturer.

E. ACI Publications: Comply with the following unless modified by requirements in the Contract Documents:

1. ACI 301, "Specifications for Structural Concrete," Sections 1 through 5.

2. ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."

F. Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to design concrete mixtures.

1.6 DELIVERY, STORAGE, AND HANDLING

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

B. Waterstops: Store waterstops under cover to protect from moisture, sunlight, dirt, oil, and other contaminants.

PART 2 - PRODUCTS

2.1 FORM-FACING MATERIALS

A. Smooth-Formed Finished Concrete: Form-facing panels that will provide continuous, true, and smooth concrete surfaces. Furnish in largest practicable sizes to minimize number of joints.

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

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

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

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

1. Formulate form-release agent with rust inhibitor for steel form-facing materials.

03 30 00 5 CAST-IN-PLACE CONCRETE

E. Form Ties: Factory-fabricated, removable or snap-off metal or glass-fiber-reinforced plastic form ties designed to resist lateral pressure of fresh concrete on forms and to prevent spalling of concrete on removal.

1. Furnish units that will leave no corrodible metal closer than 1 inch (25 mm) to the plane of exposed concrete surface.

2. Furnish ties that, when removed, will leave holes no larger than 1 inch (25 mm) in diameter in concrete surface.

3. Furnish ties with integral water-barrier plates to walls indicated to receive dampproofing or waterproofing.

2.2 STEEL REINFORCEMENT

A. Recycled Content of Steel Products: Provide products with an average recycled content of steel products so postconsumer recycled content plus one-half of preconsumer recycled content is not less than 60 percent.

B. Reinforcing Bars: ASTM A 615/A 615M, Grade 60 (Grade 420), deformed.

C. Low-Alloy-Steel Reinforcing Bars: ASTM A 706/A 706M, deformed.

D. Plain-Steel Welded Wire Reinforcement: ASTM A 185/A 185M, plain, fabricated from as-drawn steel wire into flat sheets.

2.3 REINFORCEMENT ACCESSORIES

A. Joint Dowel Bars: ASTM A 615/A 615M, Grade 60 (Grade 420), plain-steel bars, cut true to length with ends square and free of burrs.

B. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire reinforcement in place. Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice," of greater compressive strength than concrete and as follows:

1. For concrete surfaces exposed to view where legs of wire bar supports contact forms, use CRSI Class 1 plastic-protected steel wire or CRSI Class 2 stainless-steel bar supports.

C. Mechanical Reinforcing Splices: The mechanical bar splice shall meet ACI 318 requirements for a Type 2 splice.

2.4 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout Project:

1. Portland Cement: ASTM C 150, Type II. Supplement with the following:

a. Fly Ash: ASTM C 618, Class F.

03 30 00 6 CAST-IN-PLACE CONCRETE

b. Ground Granulated Blast-Furnace Slag: ASTM C 989, Grade 100 or 120.

B. Normal-Weight Aggregates: ASTM C 33, Class 3S coarse aggregate or better, graded. Provide aggregates from a single source with documented service record data of at least 10 years' satisfactory service in similar applications and service conditions using similar aggregates and cementitious materials.

1. Maximum Coarse-Aggregate Size: See “Concrete Mixtures for Building Elements” Article for limitations on coarse aggregate size.

2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Water: ASTM C 94/C 94M and potable.

2.5 ADMIXTURES

A. Air-Entraining Admixture: ASTM C 260.

B. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and that will not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A.

2. Retarding Admixture: ASTM C 494/C 494M, Type B.

3. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F.

2.6 WATERSTOPS

A. Self-Expanding Rubber Strip Waterstops: Manufactured rectangular or trapezoidal strip, bentonite-free hydrophilic polymer modified chloroprene rubber, for adhesive bonding to concrete, 3/8 by 3/4 inch (10 by 19 mm).

1. Products:

a. Adeka Ultra Seal/OCM, Inc.; Adeka Ultra Seal.

b. Greenstreak; Hydrotite.

c. Vinylex Corp.; Swellseal.

d. Or approved equal.

2.7 VAPOR RETARDERS

A. Sheet Vapor Retarder: Vapor retarder shall not be less than 10 mils thick and shall meet the minimum requirements of ASTM E 1745, Class A. Include manufacturer's recommended adhesive or pressure-sensitive tape.

1. Products:

a. Fortifiber Building Systems Group; Moistop Ultra.

03 30 00 7 CAST-IN-PLACE CONCRETE

b. Grace Construction Products, W. R. Grace & Co.; Florprufe 120.

c. Insulation Solutions, Inc.; Viper VaporCheck.

d. Meadows, W. R., Inc.; Perminator.

e. Raven Industries Inc.; Vapor Block.

f. Reef Industries, Inc.; Griffolyn.

g. Stego Industries, LLC; Stego Wrap.

h. Or approved equal.

2.8 LIQUID FLOOR TREATMENTS

A. Penetrating Liquid Floor Treatment: Clear, chemically reactive, waterborne solution of inorganic silicate or siliconate materials and proprietary components; odorless; that penetrates, hardens, and densifies concrete surfaces.

1. Products:

a. Dayton Superior Corporation; Day-Chem Sure Hard (J-17).

b. Euclid Chemical Company (The), an RPM company; Euco Diamond Hard.

c. L&M Construction Chemicals, Inc.; Seal Hard.

d. Meadows, W. R., Inc.; LIQUI-HARD.

e. Or approved equal.

2.9 CURING MATERIALS

A. Evaporation Retarder: Waterborne, monomolecular film forming, manufactured for application to fresh concrete.

1. Products:

a. BASF Construction Chemicals - Building Systems; Confilm.

b. Conspec by Dayton Superior; Aquafilm.

c. L&M Construction Chemicals, Inc.; E-CON.

d. Meadows, W. R., Inc.; EVAPRE.

e. Sika Corporation; SikaFilm.

f. Or approved equal.

B. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd. (305 g/sq. m) when dry.

C. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

D. Water: Potable.

03 30 00 8 CAST-IN-PLACE CONCRETE

E. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating.

1. Products:

a. BASF Construction Chemicals - Building Systems; Kure 200.

b. Conspec by Dayton Superior; W.B. Resin Cure.

c. Euclid Chemical Company (The), an RPM company; Kurez W VOX;

TAMMSCURE WB 30C.

d. L&M Construction Chemicals, Inc.; L&M Cure R.

e. Meadows, W. R., Inc.; 1100-CLEAR.

f. Or approved equal.

2.10 RELATED MATERIALS

A. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber.

B. Semirigid Joint Filler: Two-component, semirigid, 100 percent solids, epoxy resin with a Type A shore durometer hardness of 80 per ASTM D 2240.

C. Bonding Agent: ASTM C 1059/C 1059M, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

2.11 REPAIR MATERIALS

A. Repair Underlayment: Cement-based, polymer-modified, self-leveling product that can be applied in thicknesses from 1/8 inch (3.2 mm) and that can be feathered at edges to match adjacent floor elevations.

1. Cement Binder: ASTM C 150, portland cement or hydraulic or blended hydraulic cement as defined in ASTM C 219.

2. Primer: Product of underlayment manufacturer recommended for substrate, conditions, and application.

3. Aggregate: Well-graded, washed gravel, 1/8 to 1/4 inch (3.2 to 6 mm) or coarse sand as recommended by underlayment manufacturer.

4. Compressive Strength: Not less than 4100 psi (29 MPa) at 28 days when tested according to ASTM C 109/C 109M.

B. Repair Overlayment: Cement-based, polymer-modified, self-leveling product that can be applied in thicknesses from 1/4 inch (6.4 mm) and that can be filled in over a scarified surface to match adjacent floor elevations.

1. Cement Binder: ASTM C 150, portland cement or hydraulic or blended hydraulic cement as defined in ASTM C 219.

2. Primer: Product of topping manufacturer recommended for substrate, conditions, and application.

3. Aggregate: Well-graded, washed gravel, 1/8 to 1/4 inch (3.2 to 6 mm) or coarse sand as recommended by topping manufacturer.

03 30 00 9 CAST-IN-PLACE CONCRETE

4. Compressive Strength: Not less than 5000 psi (34.5 MPa) at 28 days when tested according to ASTM C 109/C 109M.

2.12 CONCRETE MIXTURES, GENERAL

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301.

1. Use a qualified independent testing agency for preparing and reporting proposed mixture designs based on laboratory trial mixtures.

B. Cementitious Materials: Use fly ash or ground granulated blast-furnace slag, and silica fume as needed to reduce the total amount of portland cement, which would otherwise be used, by not less than 40 percent. Limit fly ash or ground granulated blast-furnace slag to not less than 15 percent and not more than 25 percent in concrete mixes for slabs on grade or suspended slabs.

C. Limit water-soluble, chloride-ion content in hardened concrete to 0.06 percent by weight of cement.

D. Admixtures: Use admixtures according to manufacturer's written instructions.

1. Use water-reducing admixture in all concrete.

2. Use high range water-reducing admixture in pumped concrete and as required for placement and workability. The use of high range water reducer in pumped flat work is optional.

2.13 CONCRETE MIXTURES FOR BUILDING ELEMENTS

A. Footings: Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4000 psi (20.7 MPa) at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.45.

3. Maximum Coarse Aggregate Size: 1-1/2 inches nominal.

4. Slump Limit: 4 inches or 8 inches (200 mm) for concrete with verified slump of 2 to

4 inches (50 to 100 mm) before adding high-range water-reducing admixture or plasticizing admixture, plus or minus 1 inch (25 mm).

5. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery.

B. Foundation Walls: Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4000 psi (20.7 MPa) at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.45.

3. Maximum Coarse Aggregate Size: 1 inch nominal.

4. Slump Limit: 4 inches or 8 inches (200 mm) for concrete with verified slump of 2 to

4 inches (50 to 100 mm) before adding high-range water-reducing admixture or plasticizing admixture, plus or minus 1 inch (25 mm).

5. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery.

03 30 00 10 CAST-IN-PLACE CONCRETE

C. Slabs-on-Grade: Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4000 psi (27.6 MPa) at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.45.

3. Minimum Cementitious Materials Content: 540 lb/cu. yd. (320 kg/cu. m).

4. Maximum Coarse Aggregate Size: 1 inch nominal.

5. Slump Limit: 4 inches (100 mm), plus or minus 1 inch (25 mm).

6. Air Content: Do not allow air content of trowel-finished floors to exceed 3 percent.

D. Suspended Slabs: Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4000 psi (27.6 MPa) at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.45.

3. Minimum Cementitious Materials Content: 540 lb/cu. yd. (320 kg/cu. m).

4. Maximum Coarse Aggregate Size: 3/4 inch nominal.

5. Slump Limit: 4 inches (100 mm), plus or minus 1 inch (25 mm).

6. Air Content: Do not allow air content of trowel-finished floors to exceed 3 percent.

2.14 FABRICATING REINFORCEMENT

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

2.15 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M, and furnish batch ticket information.

1. When air temperature is between 85 and 90 deg F (30 and 32 deg C), reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F (32 deg C), reduce mixing and delivery time to 60 minutes.

PART 3 - EXECUTION

3.1 FORMWORK

A. Design, erect, shore, brace, and maintain formwork, according to ACI 301, to support vertical, lateral, static, and dynamic loads, and construction loads that might be applied, until structure can support such loads.

B. Construct formwork so concrete members and structures are of size, shape, alignment, elevation, and position indicated, within tolerance limits of ACI 117.

C. Limit concrete surface irregularities, designated by ACI 347 as abrupt or gradual, as follows:

1. Class A, 1/8 inch (3.2 mm) for smooth-formed finished surfaces.

2. Class B, 1/4 inch (6 mm) for rough-formed finished surfaces.

03 30 00 11 CAST-IN-PLACE CONCRETE

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

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

Provide crush or wrecking plates where stripping may damage cast concrete surfaces. Provide top forms for inclined surfaces steeper than 1.5 horizontal to 1 vertical.

1. Install keyways, reglets, recesses, and the like, for easy removal.

2. Do not use rust-stained steel form-facing material.

F. Set edge forms, bulkheads, and intermediate screed strips for slabs to achieve required elevations and slopes in finished concrete surfaces. Provide and secure units to support screed strips; use strike-off templates or compacting-type screeds.

G. Provide temporary openings for cleanouts and inspection ports where interior area of formwork is inaccessible. Close openings with panels tightly fitted to forms and securely braced to prevent loss of concrete mortar. Locate temporary openings in forms at inconspicuous locations.

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

I. Form openings, chases, offsets, sinkages, keyways, reglets, blocking, screeds, and bulkheads required in the Work. Determine sizes and locations from trades providing such items.

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

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

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

3.2 EMBEDDED ITEMS

A. Place and secure anchorage devices and other embedded items required for adjoining work that is attached to or supported by cast-in-place concrete. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

1. Install anchor rods, accurately located, to elevations required and complying with tolerances in Section 7.5 of AISC's "Code of Standard Practice for Steel Buildings and Bridges."

3.3 REMOVING AND REUSING FORMS

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

03 30 00 12 CAST-IN-PLACE CONCRETE

B. Clean and repair surfaces of forms to be reused in the Work. Split, frayed, delaminated, or otherwise damaged form-facing material will not be acceptable for exposed surfaces. Apply new form-release agent.

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

Align and secure joints to avoid offsets. Do not use patched forms for exposed concrete surfaces unless approved by Contracting Officer.

3.4 VAPOR RETARDERS

A. Sheet Vapor Retarders: Place, protect, and repair sheet vapor retarder according to ASTM E 1643 and manufacturer's written instructions.

1. Lap joints 6 inches (150 mm) and seal with manufacturer's recommended tape.

2. Remove torn, punctured, or damaged vapor barrier and replace with new vapor barrier prior to placing concrete.

3. Vapor barrier shall satisfy the radon vapor barrier requirements as shown on the

Drawings.

3.5 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement.

1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before placing concrete.

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

C. Accurately position, support, and secure reinforcement against displacement. Locate and support reinforcement with bar supports to maintain minimum concrete cover. Do not tack weld crossing reinforcing bars.

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

E. Install welded wire reinforcement in longest practicable lengths on bar supports spaced to minimize sagging. Lap edges and ends of adjoining sheets at least one mesh spacing. Offset laps of adjoining sheet widths to prevent continuous laps in either direction. Lace overlaps with wire.

3.6 JOINTS

A. General:

1. Contractor shall submit all proposed construction and contraction joint lay-outs to the Contracting Officer for approval.

2. Work shall not proceed until joint lay-out has been approved.

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

03 30 00 13 CAST-IN-PLACE CONCRETE

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

1. Continue reinforcement across construction joints unless otherwise indicated.

2. Space construction joints in walls at a maximum of 40 feet on center. Locate joints beside piers integral with walls, near corners, and in concealed locations where possible.

3. Use a bonding agent at locations where fresh concrete is placed against hardened or partially hardened concrete surfaces.

C. Control Joints in Slabs-on-Grade: Form weakened-plane control joints, sectioning concrete into areas as indicated.

1. Concrete slabs on grade shall be bound by control joints such that the enclosed area does not exceed 250 square feet.

2. Provide contraction joints that are a minimum depth of one-fourth the slab thickness by one of the following methods.

a. Keyed Joints: Form key into adjacent slab pours.

b. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 1/8-inch- (3.2-mm-) wide joints into concrete when cutting action will not tear, abrade, or otherwise damage surface and before concrete develops random contraction cracks.

3.7 WATERSTOPS

A. Self-Expanding Strip Waterstops: Install in construction joints and at other locations indicated, according to manufacturer's written instructions, adhesive bonding, mechanically fastening, and firmly pressing into place. Install in longest lengths practicable.

3.8 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections have been performed.

B. Do not add water to concrete during delivery, at Project site, or during placement unless approved by Contracting Officer.

C. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete will be placed on concrete that has hardened enough to cause seams or planes of weakness. If a section cannot be placed continuously, provide construction joints as indicated.

Deposit concrete to avoid segregation.

1. Deposit concrete in horizontal layers of depth to not exceed formwork design pressures and in a manner to avoid inclined construction joints.

2. Consolidate placed concrete with mechanical vibrating equipment according to ACI 301.

3. Do not use vibrators to transport concrete inside forms. Insert and withdraw vibrators vertically at uniformly spaced locations to rapidly penetrate placed layer and at least 6 inches (150 mm) into preceding layer. Do not insert vibrators into lower layers of concrete that have begun to lose plasticity. At each insertion, limit duration of vibration

03 30 00 14 CAST-IN-PLACE CONCRETE

to time necessary to consolidate concrete and complete embedment of reinforcement and other embedded items without causing mixture constituents to segregate.

D. Deposit and consolidate concrete for floors and slabs in a continuous operation, within limits of construction joints, until placement of a panel or section is complete.

1. Consolidate concrete during placement operations so concrete is thoroughly worked around reinforcement and other embedded items and into corners.

2. Maintain reinforcement in position on chairs during concrete placement.

3. Screed slab surfaces with a straightedge and strike off to correct elevations.

4. Slope surfaces uniformly to drains where required.

5. Begin initial floating using bull floats or darbies to form a uniform and open-textured surface plane, before excess bleedwater appears on the surface. Do not further disturb slab surfaces before starting finishing operations.

E. Cold-Weather Placement: Comply with ACI 306.1 and as follows. Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing actions, or low temperatures.

1. When average high and low temperature is expected to fall below 40 deg F (4.4 deg C) for 3 successive days, maintain delivered concrete mixture temperature within the temperature range required by ACI 301.

2. Do not use frozen materials or materials containing ice or snow. Do not place concrete on frozen subgrade or on subgrade containing frozen materials.

3. Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators unless otherwise specified and approved in mixture designs.

F. Hot-Weather Placement: Comply with ACI 301 and as follows:

1. Maintain concrete temperature below 90 deg F (32 deg C) at time of placement. Chilled mixing water or chopped ice may be used to control temperature, provided water equivalent of ice is calculated to total amount of mixing water. Using liquid nitrogen to cool concrete is Contractor's option.

2. Fog-spray forms, steel reinforcement, and subgrade just before placing concrete. Keep subgrade uniformly moist without standing water, soft spots, or dry areas.

3.9 FINISHING FORMED SURFACES

A. Rough-Formed Finish: As-cast concrete texture imparted by form-facing material with tie holes and defects repaired and patched. Remove fins and other projections that exceed specified limits on formed-surface irregularities.

1. Apply to concrete surfaces not exposed to public view.

B. Smooth-Formed Finish: As-cast concrete texture imparted by form-facing material, arranged in an orderly and symmetrical manner with a minimum of seams. Repair and patch tie holes and defects. Remove fins and other projections that exceed specified limits on formed-surface irregularities.

1. Apply to concrete surfaces exposed to public view.

03 30 00 15 CAST-IN-PLACE CONCRETE

C. Related Unformed Surfaces: At tops of walls, horizontal offsets, and similar unformed surfaces adjacent to formed surfaces, strike off smooth and finish with a texture matching adjacent formed surfaces. Continue final surface treatment of formed surfaces uniformly across adjacent unformed surfaces unless otherwise indicated.

3.10 FINISHING FLOORS AND SLABS

A. General: Comply with ACI 302.1R recommendations for screeding, restraightening, and finishing operations for concrete surfaces. Do not wet concrete surfaces.

B. Float Finish: Consolidate surface with power-driven floats or by hand floating if area is small or inaccessible to power driven floats. Restraighten, cut down high spots, and fill low spots.

Repeat float passes and restraightening until surface is left with a uniform, smooth, granular texture.

1. Apply float finish to surfaces to receive trowel finish.

C. Trowel Finish: After applying float finish, apply first troweling and consolidate concrete by hand or power-driven trowel. Continue troweling passes and restraighten until surface is free of trowel marks and uniform in texture and appearance. Grind smooth any surface defects that would telegraph through applied coatings or floor coverings.

1. Apply a trowel finish to surfaces exposed to view or to be covered with resilient flooring, carpet, ceramic or quarry tile set over a cleavage membrane, paint, or another thin-film-finish coating system.

2. Finish surfaces to the following tolerances, according to ASTM E 1155 (ASTM E 1155M), for a randomly trafficked floor surface:

a. Specified overall values of flatness, F(F) 25; and of levelness, F(L) 20; with minimum local values of flatness, F(F) 17; and of levelness, F(L) 15.

b. Specified overall values of flatness, F(F) 35; and of levelness, F(L) 25; with minimum local values of flatness, F(F) 24; and of levelness, F(L) 17; for slabs-on-grade.

c.…