Archives by Day: February 20, 2013

Concrete Masonry Units Are Being Made with Smaller Cross Webs – This is Better, but “On the Other Hand…”

Posted by in Masonry | February 20, 2013

It has been over a year since the American Society of Testing Materials approved ASTM C90-11 which allows thinner cross webs in concrete masonry units (CMU).  The new standard allows cross webs to be ¾ inches thick instead of 11/8 inches. … Read More