Masonry Magazine August 1994 Page. 2
SOLVING THE MORTAR PUZZLE!
Masonry Cement Helps Make Watertight Walls
Laboratory tests show that masonry cement mortars shrink only half as much as portland cement-lime mortars. Crack less! So masonry cement mortars help make walls more watertight, less likely to leak. It's that simple.
In a series of ASTM C 1148 tests, masonry cement mortars had only half the shrinkage as portland cement-lime mortars. Send for a free report.
PORTLAND CEMENT ASSOCIATION
5420 Old Orchard Road Skokie, Illinois 60077-1083 (708) 966-6200