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AASHTO T 211
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AASHTO T 211 90th Edition, January 1, 1990 Standard Method of Test for Determination of Cement Content in Cement-Treated Aggregate by the Method of Titration
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Description / Abstract:
This method of test covers a procedure for determining cement content based on the continuous neutralization of an aqueous solution from the cement-treated aggregate specimen for a specified time period. This is accomplished by adding sufficient acid to just neutralize the OH– ion that is continuously being liberated during the hydration of the cement. The amount of acid used is directly proportional to the cement content of the treated base sample.
The following applies to all specified limits in this standard: For the purposes of determining conformance with these specifications, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand place of figures used in expressing the limiting value, in accordance with ASTM E29.
The values stated in SI units are to be regarded as the standard.
Refer to R 16 for regulatory information for chemicals.
The following applies to all specified limits in this standard: For the purposes of determining conformance with these specifications, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand place of figures used in expressing the limiting value, in accordance with ASTM E29.
The values stated in SI units are to be regarded as the standard.
Refer to R 16 for regulatory information for chemicals.