Reso 2007-1103 - Laserfiche WebLink

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0 phi 0 Test results obtained at the frequency provided above represent the chloride content of all concrete placed subsequent to the preceding test for the determination of chloride content. 346 -4.2.3 Certification: Determine the chloride content, and certify the test results of chloride determinations to the Department. Include in the certification all pertinent data required by the Department. The Department will require properly executed certifications showing the chloride content within the required limits for acceptance of all concrete produced in accordance with these Specifications. 346 -4.2.4 Control Level for Corrective Action: If the test results indicate that the chloride level is greater than the following limits, suspend concrete production until implementing corrective measures acceptable to the Engineer. (1) Chloride content of 0.65 Ib /yd3 [0.39 kg /m3] or greater for reinforced concrete that does not require Type II cement plus slag or pozzolan(s). (2) Chloride content of 0.35 Ib /yd3 [0.21 kg /M3] or greater for prestressed concrete and all applications that require Type II cement with slag or pozzolan(s). The Engineer will reject the concrete exceeding the maximum allowable chloride content limits shown in 346-4.2.1. 346 -5 Sampling and Testing Methods. Perform concrete sampling and testing in accordance with the following methods: TABLE 5 Description Method Slump of Hydraulic Cement Concrete ASTM C 143 [ASTM C 143M] Air Content of Freshly Mixed Concrete by the Pressure Method* ASTM C 231 Air Content of Freshly Mixed Concrete by the Volumetric Method* ASTM C 173 [ASTM C 173M] Making and Curing Test Specimens in the Field ASTM C 31 [ASTM C 31 M] Compressive Strength of Cylindrical Concrete Specimens * ASTM C 39 [ASTM C 39M] Obtaining and Testing Drilled Core and Sawed Beams of Concrete ASTM C 42 [ASTM C 42M] Early Sampling of Fresh Concrete During the Initial Placement FM 5 -501 Low Levels of Chloride in Concrete and Raw Materials FM 5-516 Density (Unit Weight), Yield and Air Content (Gravimetric) of Concrete ASTM C 138 [ASTM C 138M] Temperature of Freshly Mixed Portland Cement Concrete ASTM C 1064 [ASTM C 1064M] Sampling Freshly Mixed Concrete ASTM C 172 *Use the same type of meter for QC tests as the Department uses for Verification testing. When using pressure type meters, use an aggregate correction factor determined by the concrete producer for each mix design to be tested. Record and certify test results for March 2007 01000 -97 03- 4122.D;