ASTM C91

Full Name

ASTM C91 – Standard Specification for Masonry Cement

Scope

ASTM C91 outlines the requirements for masonry cement used in the construction of various masonry structures. It covers three types of masonry cement:

  1. Type N: General-purpose masonry cement.
  2. Type S: Masonry cement with increased strength.
  3. Type M: High-strength masonry cement.

The scope of ASTM C91 includes:

  • Chemical composition: requirements for the various ingredients in masonry cement.
  • Physical properties: specifications for air content, soundness, compressive strength, and water retention.
  • Sampling and testing: procedures for sampling and testing masonry cement to ensure it meets the specified requirements.

This standard is essential for ensuring the quality and performance of masonry cement. By adhering to ASTM C91, manufacturers can produce consistent and reliable masonry cement that meets the needs of the construction industry.

ASTM C91 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C91 standard.

Contact us for more information.

Resources

Keywords

masonry cement; mortar; type n; type s; type m; physical properties; air content; water retention; compressive strength; autoclave expansion; fineness; consistency; soundness; sampling; temperature; humidity; normal consistency; time of setting; density; blended sand; air entrainment; water retention; storage; inspection; rejection; manufacturer’s certification; packaging; package marking; hydraulic cement; carbonation curing; steel reinforcement; portland cement; plasticizing materials; limestone; hydrated lime; workability; durability; flexural tensile stress; model building codes; chemical analysis; flow table; mechanical mixing; moist cabinets; standard sand; international system of units; definitions; classification; requirements; testing methods; quality control; specification development; material selection;