David Hummel


Roles


Masonry Magazine July 1962 Page. 10
July 1962

CONTRACTORS!

PREVENT
UNSIGHTLY
CRACKS
USE
WAL-LOK
MORTAR JOINT REINFORCING

BECAUSE:
THE EFFECTIVENESS OF REINFORCING IN MASONRY WALLS DEPENDS ON THE AMOUNT AND TENSILE STRENGTH OF THE STEEL IN THE MORTAR AND THE