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u. <br />I <br />I <br />M <br />ill' <br />2. The loss on ignition shall be less than 3.0 %. <br />3. The available alkalies, as equivalent Na20, shall not exceed 1 .0 %. <br />4. The amount of material retained on a No. 325 mesh sieve shall not <br />exceed 1.0 %. <br />5. The strength activity Index, at 7 days, shall be at least 85 %. <br />6. When metakaolin is used in concrete, the test results shall verify improved <br />or comparable strength, sulfate resistance, corrosion protective properties and other <br />durability performance properties of concrete, as compared to the performance of silica <br />fume concrete. The comparison strength and durability tests shall be performed in <br />accordance with ASTM C 39, ASTM C 157, ASTM C 1012, ASTM C 1202, ASTM G 109, <br />FM 5 -516 and FM 5 -522, by an approved independent testing laboratory. Sampling and <br />testing of metakaolin shall follow the requirements of ASTM C 311. <br />929 -4.2 Acceptance Testing of Metakaolin: Acceptance of metakaolin from sources <br />operating under an approved quality control plan shall be based on the monthly certified <br />quality control tests meeting the chemical (Supplementary Optional included) and physical <br />requirements of ASTM C 618 Class N, as modified herein. An approved laboratory shall <br />perform the monthly quality control tests and a copy of their mill certificates shall be sent <br />to the State Materials Office, when the material is in use on Department projects. Also, the <br />corresponding samples along with mill certificates shall be submitted to the Department, <br />upon request. The certification shall indicate that the metakaolin meets the requirements of <br />this Specification. <br />929 -5 Slag. <br />929 -5.1 General: Slag shall meet the requirements of ASTM C 989. Sampling and <br />testing procedures shall follow the requirements of ASTM C 989. <br />929 -5.2 Special Requirements: Only Ground Granulated Blast- Furnace Slag <br />Grade 100 and 120 will be permitted. <br />929 -5.3 Exceptions: Slag shall not be used in conjunction with Type IP or Type IS <br />cements. <br />929 -5.4 Acceptance Testing: Acceptance of slag from sources operating under an <br />approved quality control plan shall be based on the monthly certified quality control tests <br />meeting the chemical and physical requirements of ASTM C 989. An approved laboratory <br />shall perform the monthly quality control tests and a copy of their mill certificates shall be <br />sent to the State Materials Office when the material is in use on Department projects. <br />Reference Cement used for determination of Slag Activity shall meet the requirements of <br />ASTM C 989. The certification shall indicate that the slag meets the requirements of this <br />Specification. Also, the corresponding samples along with mill certificates shall be <br />submitted to the Department, upon request. <br />March 2007 01000 -178 <br />03-4122.D s <br />