AASHTO T 211-90 (2017) PDF Download

The AASHTO T 211-90 (2017) standard outlines a procedure for determining the cement content in cement-treated aggregates. The method involves continuously neutralizing an aqueous solution obtained from the specimen of the treated aggregate for a specified duration.

During the hydration of cement, hydroxide ions (OH-) are released, and the objective is to use an acid to neutralize these ions. The amount of acid required to achieve neutralization is directly proportional to the cement content in the treated aggregate sample. By measuring the quantity of acid used in the titration process, the cement content can be determined accurately.

This standard provides a practical and reliable approach for evaluating the cement content in cement-treated aggregates. The titration method described ensures a consistent and consistent measurement of cement content. The standard is applicable for a wide range of cement-treated aggregates, making it a valuable tool for quality control and research purposes in the construction industry.