AASHTO T 129-14 (2018) PDF Download

AASHTO T 129-14 (2018) is a standard method of test that is used to determine the normal consistency of hydraulic cement paste. The normal consistency refers to the amount of water that is required to produce a cement paste of a specified consistency. This standard provides guidelines and procedures for conducting this test accurately and reliably.

The test involves blending a specific amount of hydraulic cement with varying amounts of water to produce a paste. The paste is then mixed and a Vicat apparatus is used to measure the consistency of the paste. The consistency is determined by measuring the penetration depth of a standard plunger into the paste. The test is repeated with different water-to-cement ratios until the desired consistency is achieved.

This standard ensures that consistent and accurate measurements of the normal consistency of hydraulic cement paste can be obtained. It provides a standardized procedure that can be followed by testing laboratories to ensure reliable and comparable results. The normal consistency of hydraulic cement paste is an important parameter in determining the workability and setting characteristics of the cement, and therefore this test is crucial in ensuring the quality and performance of hydraulic cement.