Title:
Shotcrete Strengthening of Brick Masonry Walls
Author(s):
Lawrence F. Kahn
Publication:
Concrete International
Volume:
6
Issue:
7
Appears on pages(s):
34-40
Keywords:
bonding; diagonal tension; earthquake resistant structures; masonry walls; shear strength; shotcrete; strengthening
DOI:
Date:
7/1/1984
Abstract:
Fourteen 3 x 3 ft (1 x 1 m) single wythe panels were constructed to model old, existing masonry walls. A 1.5 in. (38 mm) or 3.5 in (89 mm) thick layer of reinforced shotcrete was applied to twelve panels. Brick surfaces were either dry, wet, or epoxy coated. The shotcrete greatly increased the in-plane shear strength of the panels; small amounts of steel reinforcement developed significant ductility in the panels. The brick surface treatments were about equally effective in developing the full composite behavior and ultimate load.