This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section


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Copyright 2014 AIA MasterSpec Premium 06/14

PRODUCT MASTERSPEC LICENSED BY ARCOM TO KAUFMAN PRODUCTS, INC.


Copyright 2014 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

This Product MasterSpec Section is licensed by ARCOM to Kaufman Products, Inc. ("Licensee").

This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section.

Revisions made to the original MasterSpec text are made solely by the Licensee and are not endorsed by, or representative of the opinions of, ARCOM or The American Institute of Architects (AIA). Neither AIA nor ARCOM are liable in any way for such revisions or for the use of this Product MasterSpec Section by any end user. A qualified design professional should review and edit the document to suit project requirements.

For more information, contact Kaufman Products, Inc., 3811 Curtis Avenue, Baltimore, MD 21226; Phone: 410-354-8600 | 800-637-6372; Fax: 410-354-1122; Website: www.kaufmanproducts.net; Email: info@kaufmanproducts.net.

For information about MasterSpec contact ARCOM at (800) 424-5080 or visit www.MasterSpec.com.

SECTION 033000 - CAST-IN-PLACE CONCRETE

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on MasterWorks/Single File Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on MasterWorks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

This Section uses the term "Architect." Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

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

1.2SUMMARY

A.Section includes cast-in-place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes.

B.Related Requirements:

Retain subparagraphs below to cross-reference requirements Contractor might expect to find in this Section but are specified in other Sections.

1.Section 033300 "Architectural Concrete" for general building applications of specially finished formed concrete.

2.Section 035300 "Concrete Topping" for emery- and iron-aggregate concrete floor toppings.

3.Section 312000 "Earth Moving" for drainage fill under slabs-on-grade.

4.Section 321313 "Concrete Paving" for concrete pavement and walks.

5.Section 321316 "Decorative Concrete Paving" for decorative concrete pavement and walks.

1.3DEFINITIONS

Retain terms that remain after this Section has been edited for a project.

Definition in "Cementitious Materials" Paragraph below refers to those materials that make up the cementitious component of the w/c ratio.

A.Cementitious Materials: Portland cement alone or in combination with one or more of the following: blended hydraulic cement, fly ash, slag cement, other pozzolans, and silica fume; materials subject to compliance with requirements.

B.W/C Ratio: The ratio by weight of water to cementitious materials.

1.4PREINSTALLATION MEETINGS

Retain "Preinstallation Conference" Paragraph below if Work of this Section is extensive or complex enough to justify a conference.

A.Preinstallation Conference: Conduct conference at [Project site] <Insert location>.

Retain first subparagraph below if warranted by complexity of design mixtures and quality control of concrete materials.

1.Before submitting design mixtures, review concrete design mixture and examine procedures for ensuring quality of concrete materials. Require representatives of each entity directly concerned with cast-in-place concrete to attend, including the following:

a.Contractor's superintendent.

b.Independent testing agency responsible for concrete design mixtures.

c.Ready-mix concrete manufacturer.

d.Concrete Subcontractor.

Retain first subparagraph below if special concrete finishes are included in Project.

e.Special concrete finish Subcontractor.

2.Review [special inspection and testing and inspecting agency procedures for field quality control,] [concrete finishes and finishing,] [cold- and hot-weather concreting procedures,] [curing procedures,] [construction contraction and isolation joints, and joint-filler strips,] [semirigid joint fillers,] [forms and form removal limitations,] [shoring and reshoring procedures,] [vapor-retarder installation,] [anchor rod and anchorage device installation tolerances,] [steel reinforcement installation,] [methods for achieving specified floor and slab flatness and levelness] [floor and slab flatness and levelness measurement,] [concrete repair procedures,] and concrete protection.

1.5ACTION SUBMITTALS

A.Product Data: For each type of product.

B.Sustainable Design Submittals:

Retain "Product Data" Subparagraph below to require minimum recycled content for LEED 2009 MR Credit 2 - "Recycled Content."

1.Product Data: For recycled content, indicating postconsumer and preconsumer recycled content and cost.

Retain one of the following two "Product Certificates" Subparagraphs below when pursing LEED regional credits.

"Product Certificates" Subparagraph below applies to LEED 2009, Materials and Resources Credit MR Credit 5 - "Regional Materials."

2.Product Certificates: For materials manufactured within 500 miles (800 km) of Project, indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include distance to Project and cost for each raw material.

"Product Certificates" Subparagraph below applies to LEED v4, Materials and Resources Credit "Building Product Disclosure and Optimization - Environmental Product Declarations, Option 2."

3.Product Certificates: For materials manufactured within 100 miles (160 km) of Project, indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include distance to Project and cost for each raw material.

"Laboratory Test Reports" Subparagraph below applies to LEED 2009 for Schools, LEED v4, IgCC, ASHRAE 189.1, and Green Globes. Coordinate with requirements for liquid floor treatments and curing and sealing compounds.

4.Laboratory Test Reports: For [liquid floor treatments] [and] [curing and sealing compounds], indicating compliance with requirements for low-emitting materials.

Design mixtures in "Design Mixtures" Paragraph below are usually considered to be an action submittal.

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.

1.Indicate amounts of mixing water to be withheld for later addition at Project site.

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 Architect.

F.Samples: For [waterstops] [vapor retarder] <Insert products>.

1.6INFORMATIONAL SUBMITTALS

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section 014000 "Quality Requirements" and as supplemented in "Quality Assurance" Article.

A.Qualification Data: For [Installer] [manufacturer] [testing agency].

Retain "Welding certificates" Paragraph below if retaining "Welding Qualifications" Paragraph in "Quality Assurance" Article.

B.Welding certificates.

Retain "Material Certificates" Paragraph below to require submittal of material certificates from manufacturers.

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

Revise fourteen subparagraphs below to suit Project.

1.Cementitious materials.

2.Admixtures.

3.Form materials and form-release agents.

4.Steel reinforcement and accessories.

5.Fiber reinforcement.

6.Waterstops.

7.Curing compounds.

8.Floor and slab treatments.

9.Bonding agents.

10.Adhesives.

11.Vapor retarders.

12.Semirigid joint filler.

13.Joint-filler strips.

14.Repair materials.

Retain "Material Test Reports" Paragraph below for material test reports that are Contractor's responsibility.

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

Retain option in "Aggregates" Subparagraph below if retaining service record data with "Normal-Weight Aggregates" Paragraph in Part 2 "Concrete Materials" Article.

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

E.Formwork Shop Drawings: Prepared by or under the supervision of a qualified professional engineer, detailing fabrication, assembly, and support of formwork.

1.Shoring and Reshoring: Indicate proposed schedule and sequence of stripping formwork, shoring removal, and reshoring installation and removal.

Retain first paragraph below if Contractor engages testing agency for measuring floor surface flatness and levelness.

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

Retain "Field quality-control reports" Paragraph below if Contractor is responsible for field quality-control testing and inspecting.

G.Field quality-control reports.

Retain paragraph below if preinstallation conference is held.

H.Minutes of preinstallation conference.

1.7QUALITY ASSURANCE

Retain "Installer Qualifications" Paragraph below if required. See Section 014000 "Quality Requirements" for general installer qualifications. Verify availability of qualified personnel with a local ACI chapter or concrete contractors. These desirable programs may have limited grass-roots penetration.

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.

Retain subparagraph below if required.

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

Retain "Testing Agency Qualifications" Paragraph below if Contractor retains testing agency for concrete mixture design, material test reports, or field quality control. Retain option if field quality-control testing agency employed by Contractor must be approved by authorities having jurisdiction.

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.

Retain first subparagraph below, required by ACI 301 (ACI 301M) and ASTM C 31/C 31M, if emphasis is needed. ASTM C 1077 notes relevant field or laboratory technician certification by ACI, NRMCA, and Portland Cement Association; or the National Institute for Certification in Engineering Technologies may demonstrate evidence of competence.

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.

Retain subparagraph below if requiring minimum qualifications for laboratory personnel performing testing and for laboratory supervisor.

2.Personnel performing laboratory tests shall be ACI-certified Concrete Strength Testing Technician and Concrete Laboratory Testing Technician, Grade I. Testing agency laboratory supervisor shall be an ACI-certified Concrete Laboratory Testing Technician, Grade II.

Retain "Welding Qualifications" Paragraph below if shop or field welding is required. If retaining, also retain "Welding certificates" Paragraph in "Informational Submittals" Article. AWS states that welding qualifications remain in effect indefinitely unless welding personnel have not welded for more than six months or there is a specific reason to question their ability.

D.Welding Qualifications: Qualify procedures and personnel according to AWS D1.4/D 1.4M.

Retain "Mockups" Paragraph below if required. If retaining, indicate location, concrete type, and other details of mockups on Drawings or by inserts. Revise wording if only one mockup is required or if mockup of concrete in another location in a building is required.

E.Mockups: Cast concrete [slab-on-grade] [and] [formed-surface] panels to demonstrate typical joints, surface finish, texture, tolerances, floor treatments, and standard of workmanship.

Revise size of panel in first subparagraph below if required. Panel for slab-on-grade may need to be enlarged if powered riding trowels are used and if it is a portion of the floor slab.

1.Build panel approximately [200 sq. ft. (18.6 sq. m) for slab-on-grade] [and] [100 sq. ft. (9.3 sq. m) for formed surface] <Insert area> in the location indicated or, if not indicated, as directed by Architect.

Retain subparagraph below if the intention is to make an exception to the default requirement in Section 014000 "Quality Requirements" for demolishing and removing mockups.

2.Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.

1.8PRECONSTRUCTION TESTING

A.Preconstruction Testing Service: Engage a qualified testing agency to perform preconstruction testing on concrete mixtures.

1.9DELIVERY, STORAGE, AND HANDLING

Retain option in "Steel Reinforcement" Paragraph below if zinc- or epoxy-coated steel reinforcement is required.

A.Steel Reinforcement: Deliver, store, and handle steel reinforcement to prevent bending and damage.[ Avoid damaging coatings on steel reinforcement.]

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

1.10FIELD CONDITIONS

A.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 three successive days, maintain delivered concrete mixture temperature within the temperature range required by ACI 301 (ACI 301M).

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.

B.Hot-Weather Placement: Comply with ACI 301 (ACI 301M) 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.

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