ASTM C1714/C1714M-19a PDF Download

Standard Specification for Preblended Dry Mortar Mix for Unit Masonry (ASTM C1714/C1714M-19a) is a standard that provides guidelines for the production and use of masonry mortars that are preblended dry in a factory instead of being mixed on-site from individual raw materials. This standard is applicable to mortars used in unit masonry construction where the materials and design requirements are governed by Specification C270.

The specification emphasizes the differences in field-sampling, testing, packaging, and traceability of ingredients between preblended dry mortar mix and job-site mixed mortars. It addresses the need for tight control of ingredient ratios that is achievable with preblended dry mortar.

The specification includes references to explanatory notes and footnotes, which provide additional information and clarification. It is important to note that these notes and footnotes, excluding those in tables and figures, do not constitute the requirements of the standard.