ASTM C845/C845M-18 PDF Download

ASTM C845/C845M-18 is a standard specification that covers hydraulic cements that undergo expansion during the early hardening period after setting. The purpose of this standard is to provide guidelines for the use of expansive cement in shrinkage-compensating concrete. The cement covered by this specification is designated as Type E-1.

The standard specifies the chemical composition and physical requirements that expansive cement must meet. It also outlines the test methods for sampling and determining properties such as time of setting, air content, restrained expansion of mortar, compressive strength, and density.

It is important to note that the standard includes references to explanatory notes and footnotes, which provide additional information but are not considered mandatory requirements of the standard. This ensures that users of the standard have access to relevant explanatory material to better understand the specifications and requirements.