604[SECTION NOT USED]

603.03.12 Trench Excavation Limit. For utility or drainage cuts within existing pavement, the

excavation limit will be as shown in the Plans and or Special Provisions. 603.04 METHOD OF MEASUREMENT. "Controlled Low Strength Material" will be measured by the number of cubic yards actually placed in accordance with the Plans and/or as directed by the Engineer. 603.05 BASIS OF PAYMENT . The accepted quantity of "Controlled Low Strength Material" will be paid for at the contract unit price per cubic yard as listed in the Proposal. The price so-stated constitutes full and complete compensation for all labor, materials and equipment, testing, and all other incidentals required to finish the work, complete and accepted by the Engineer. SECTION 605 CONCRETE WITH CALCIUM NITRITE BASED CORROSION INHIBITOR 605.01 DESCRIPTION . This Specification covers the requirements for adding a calcium nitrite based corrosion inhibitor to the concrete mix desi gn. 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. 605.02 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 for the corrosion inhibitor. 605.02.1 Calcium Nitrite Based Corrosion Inhibitor shall conform to the requirements of ASTM C494 and shall contain 30 ±2 percent of calcium nitrite by weight. The manufacturer shall submit five years of continuous accelerated corrosion test data on concrete with water-cement ratios equal to, or less than 0.40. 605.02.2 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:

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. SECTION 606 SELF-CONSOLIDATING CONCRETE (SCC)

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: