Building Stone Mortar

Building Stone Mortar

SPEC MIX® Building Stone Mortars are especially designed for masons building masonry walls with full depth stone units. Whether the specification calls for soft or hard stone, SPEC MIX stone mortar mixes are engineered to match the specific properties of each stone to increase the mortar-to-stone bond strength while allowing the mason to lay more stone every day. Meets ASTM C270 requirements.

SPEC MIX Building Stone Mortar is produced under strict manufacturing standards supported by complete quality control measures. A digital printout displaying the proper proportions per batch may be kept as a permanent record. Each SPEC MIX manufacturer certifies that SPEC MIX masonry products are designed to meet applicable ASTM and ACI standards.

Each product is 100% dry, preblended in 80 lb. or 3,000 bags, eliminating the need to measure and add liquid admixtures on site which in turn ensures quality control while increasing jobsite productivity—EVERY JOB!

Performance Standards
Performance Standards
Estimated Yields

Determining the actual square foot yield per 80 lb (36.3 kg) or 3,000 lb (1,360.8 kg) bulk bag of SPEC MIX Building Stone Mortar is dependent on the cut of the stone and mortar joint profile. Each 80 lb (36.3 kg) bag of Building Stone Mortar will produce approximately .75 cubic feet (21.2 L) of wet masonry mortar while a 3,000 lb (1,360.8 kg) bulk bag of Building Stone Mortar will yield approximately 28 cubic feet (0.8 m3) of wet mortar.