Building Stone Mortar

Words: Dan Kamys

Building Stone Mortarwww.specmix.com

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. Mortar type should correlate with the particular masonry unit to be used. SPEC MIX Building Stone Mortar is available in formulations for hard stones such as granite and soft stone such as limestone. The specifier should evaluate the density of the stone masonry unit specified to ensure that the appropriate mortar is selected to match to the hardness of the stone masonry units for the project. 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.

The New Equation for Masonry Profit: Predictable Hardware and Proven Data
July 2026

The masonry industry is built on tradition, but modern growth requires a shift from guesswork to absolute certainty. When we talk about the philosophy that you cannot improve what you do not measure, we are looking at the literal minutes and manpower lost

Erin Koets Shayne Sanders
Build Smart
MAP Partner
Read More
The Walls We Build
July 2026

As masons, we spend our careers building walls. We build them with brick, block, stone, and mortar, and we take pride in making them straight, strong, and built to last. But over the years, I’ve learned there is another kind of wall we build—the walls we

Kent Huntley
Chairman’s Message
Read More
Owen Heimbach
July 2026

This month, the MCAA had the pleasure of speaking with SkillsUSA First Place Winner Owen Heimbach, a young mason just starting out whose enthusiasm for bricklaying is truly contagious. His passion for the craft was evident throughout our interview.

Justin Stengel
GEN NXT
Read More
Backfill Your Foundation
July 2026

I’ve been noticing an uptick in a very specific kind of application lately, and once you see the pattern, you can’t unsee it. The résumé usually reads like a family photo album. “Started helping my dad when I was 15.” “Worked summers, then full time.” “R

Corey Adams
Building More
Read More
Interested in working with us? Learn about and join the Masonry Alliance Program →