606SELF-CONSOLIDATING CONCRETE (SCC)

605.03 CONSTRUCTION METHODS . Construction methods shall conform to the applicable

requirements of Subsections 601.03, 602.03, 814.03 and 816.03 of these Specifications.

605.03.1 Curing Concrete . The curing of concrete with calcium nitrite based corrosion inhibitor

shall be in accordance with Subsection 814.03.8 of these Specifications when used on bridge decks, and in accordance with Subsection 601.03.8 of these Specifications for all other structural items. 605.04 METHOD OF MEASUREMENT . The corrosion inhibitor admixture required for “Concrete with Calcium Nitrite Based Corrosion Inhibitor” will not be measured for payment. 605.05 BASIS OF PAYMENT . No separate payment will be made for the addition of the corrosion inhibitor admixture required for “Concrete with Ca lcium Nitrite Based Corrosi on Inhibitor.” Portland cement concrete with calcium nitrate-based corrosion inhibitor will be paid for under the appropriate item or items as listed in the Proposal.

606.01 DESCRIPTION. This Specification covers the requirements for modifying all Classes of

concrete mix designs, except Classes “B” and “Z”, for self-consolidating applications. Concrete containing this admixture shall conform to the applicable requirements of PARTS 600 and 800 of these Specifications, together with the additional provisions set forth below.

606.02 MATERIALS. All concrete material components shall conform to the requirements of

SECTION M.02; PORTLAND CEMENT CONCRETE of these Specifications with the following additional provisions.

606.02.1 Chemical Admixture for SCC. SCC admixture shall be a viscosity modifying admixture

and shall conform to the requirements of Subsection 601.02.2, ASTM C494 Type A & F and be on the Approved Product Listing.

606.02.2 Concrete Mix Design Approval Process. Proportioning of ingredients and the design

and approval of mixtures shall conform to the requirements of Paras. a and b of Subsection

601.03.1 of these Specifications, together with the following additional provisions:

606.03 CONSTRUCTION METHODS. Construction methods shall conform to the applicable

requirements of Sections 600 and 800 of these Specifications except as modified below.

606.03.1 Sampling of SCC Admixtures. A sample of SCC admixture may be taken by a

Department representative. Sampling and approv al of SCC admixtures shall conform to Subsection 601.02.2 of these Specifications.

606.03.2 Placement and Finishing of SCC. The placement of SCC shall be in accordance with

Sections 600 and 800 of these Specifications where applicable, except that a minimal amount of concrete vibrating is necessary to prevent segregation of SCC.

606.03.4 Testing of SCC. The testing of SCC shall be in accordance with Subsections 601.03.7,

809.03.09 and 816.03.6 where applicable except the following:

Slump Flow Test. This test will be in lieu of the conventional slump test. The slump flow range shall be 23 in. + 3 in. measured diameter as per ASTM C1611.

606.04 METHOD OF MEASUREMENT. The SCC admixture required for “Self-Consolidating

Concrete” will not be measured for payment.

606.05 BASIS OF PAYMENT. No separate payment will be made for the addition of the SCC

admixture required for “Self-Consolidating Concrete.” Portland cement concrete with SCC admixture will be paid for under the appropriate item or items as listed in the Proposal. SECTION 607 MASS CONCRETE

607.01 DESCRIPTION. This specification covers the requirements for concrete used in mass

concrete elements. Concrete proportioned for mass concrete applications shall conform to the applicable requirements of PARTS 600 and 800 of these specifications, together with the additional provisions set forth below. 607.01.1 DEFINITIONS. Mass Concrete is defined as any elements so specified on the Plans and any other concrete pour where the ratio of the total volume to the surface area of the element equals or exceeds 0.6 and has a minimum dimension of 3 feet in any of the three planes. Calculation of the ratio shall be performed based on all dimensions measured in feet.