Masonry Magazine April 1967 Page. 4
KEYWALL
masonry reinforcement
KEYWALL ROLL-TYPE with extra high bonding strength, made of galvanized wire, packaged in 200-ft. rolls for 4, 6, 8, 10 and 12 inch walls.
Your choice of roll or rod reinforcement.
Research tested and proved quality masonry with both types of reinforcement.
Roll and rod type masonry reinforcement was tested by the Research Foundation of the University of Toledo using ordinary Class B mortar. Here is what they found:
1. In both cases the strength of the walls was improved.
2. When used in every other joint, both types of reinforcement were substantially the same in effectiveness when it came to resisting initial cracking.
masonry Nov./Dec., 1967