AASHTO T 160-17 PDF Download

The AASHTO T 160-17 standard provides guidelines for determining the length changes in hardened hydraulic-cement mortar and concrete specimens under controlled conditions of temperature and moisture.

The standard emphasizes that the length changes being measured are caused by factors other than externally applied forces and temperature changes. It specifies the laboratory-made specimens that should be used, as well as the specific testing conditions that need to be controlled, such as temperature and moisture.

The standard also mentions that the values can be stated in either inch-pound or SI units, with the SI units being the standard. It explains that the two unit systems should be regarded separately and not combined in any way. However, for sieve sizes and nominal size of aggregate, the SI values are the standard as per specification E 11.