AASHTO M 240M/M 240-21 PDF Download

The AASHTO M 240M/M 240-21 standard sets guidelines for the production and use of blended hydraulic cements. This specification applies to cements that are a combination of slag, pozzolan, limestone, portland cement or portland cement clinker, or slag with lime.

The standard specifies the ingredients and proportions required for blended hydraulic cements, taking into account different applications and purposes. It provides performance requirements that the cements must meet in order to ensure their quality and suitability for use.

It is worth noting that this standard differs from ASTM C1157/C1157M, which is a hydraulic cement specification that primarily focuses on performance criteria without prescribing specific ingredients and proportions. The AASHTO M 240M/M 240-21 standard provides a more detailed and prescriptive approach to blended hydraulic cements.