Tag Archives: CMU

NCMA Solutions Center: Are there ways to clean CMU walls?

October 23, 2018

NCMA eNews October 18, 2018 Yes, there are in general three ways a masonry assemble can be cleaned: water cleaning, abrasive cleaning, and using some form of chemical. Water cleaning method is effective for simple stains resulting from dirt, mild efflorescence, grease stains etc. Water cleaning can be done with or without pressure washing tools…
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NCMA CPU Online Education–Back to School Special Offer

September 21, 2018

BACK TO SCHOOL SPECIAL! Get the NCMA Concrete Masonry Technologist Certification Package for only $225. HURRY! Offer ends October 12th! (Original Price $275)  What is the status of your employees’ concrete masonry knowledge? Employees need to be available to serve as a technical resource for architects, building owners and contractors. Concrete Masonry Technologists work through three levels of…
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NCMA Solutions Center: Are there dimensional requirements for loadbearing concrete masonry units?

September 18, 2018

NCMA eNews September 6, 2018 Yes. The dimensions of concrete masonry units (CMU) must meet the requirements of ASTM C90, Standard Specification for Loadbearing Concrete Masonry Units. ASTM C90 provides minimum dimension requirements as well as permissible variations for CMU. For more on CMU configuration, see TEK 2-5B New Concrete Masonry Unit Configurations Under ASTM…
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