ROBERT D. THOMAS, PHILLIP J. SAMBLANET AND MARK B. HOGAN

ABSTRACT

Current allowable tensile stress value were established in the 1960’s and were based on a limited amount of available test data. This paper describes the results of a testing program intended to update the existing database of flexural tensile strength values for concrete masonry and to substantiate allowable stress design values and strength for concrete masonry. The program includes simply supported full-scale walls tested in flexure and prisms tested using a bond wrench apparatus. The relationship between wall and prism test are documented. The effect of unit manufacture, wall width, curing conditions, and mortar type on flexural tensile strength are investigated.

G-39