Masonry Magazine October 1961 Page. 20
This is Dur-o-wal
the masonry wall reinforcement with the trussed design
Don't be misled by the common habit of calling all metal-rod reinforcement "durowal". Look for the trussed design. This distinguishes the real Dur-o-wal, insures maximum flexural strength, with all steel members effectively in tension and working together.
Impartial tests have proved that truss-designed Dur-o-wal exceeds accepted standards increases the flexural strength of a masonry wall 71 to 261 per cent, depending on weight Dur-o-wal used, type of mortar, number of courses.
A study by the Armour Research Foundation indicates that Dur-o-wal tied walls outfunction brick-header tied walls. Write to any Dur-o-wal address below for a copy of Armour's 44-page report.
DUR-O-WAL
Masonry Wall Reinforcement and Rapid Control Joint
RIGID BACKBONE OF STEEL FOR EVERY MASONRY WALL
DUR-O-WAL MANUFACTURING PLANTS
Dur-O-wal Div., Cedar Rapids Block Co., CEDAR RAPIDS, IA,
Dar-O-wal Prod, Ine, Box 628, SYRACUSE, N. Y.
Dur-O-wal Div, Frontier Mfg. Co., Box 45, PHOENIX, ARIZ
Dar-O-wal Prod, Inc, 4500 E. Lombard St, BALTIMORE, MD,
Dur-O-wal of Minnesota, 2653-37th Ave, South, MINNEAPOLIS & MINNESOTA
Dur-O-wal of III, 260 S. Highland Ave, AURORA, ILL
Dur-O-wal Prod. of Ala, Inc, Box 5446, BIRMINGHAM, ALA.
Dur-O-wal of Colorado, 29th and Court St., PUEBLO COLO.
Dur-O-wal, Inc, 1678 Norwood Ave, TOLEDO, OHIO
Tus engineered products that meet a nera
Dur-seal reinforcement, shown above, und Rep
Control Joint, below. This ready-made contre
structure flexes with the swall. Recommended
construction engineers especially for concrete block