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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Capacity of Concrete Block Masonary Prisms under Eccentric Compressive Loading
Author(s): Robert G. Drysdale and Ahmad A. Hamid
Publication: Journal Proceedings
Appears on pages(s): 102-108
Keywords: axial loads; compressie strength; concrete blocks; eccentric loads; grouting; loads (forces); masonry; masonry walls; prisms; structural analysis.
Abstract:Two hundred and twenty block masonry prisms were tested under eccentric compressive loads having eccentricity to thickness ratios of 0, 1/6, 1/3, and 5/12. The influences of grouting, percent solid, block size, and block strength for different eccentricities were studied. The results show that the strengths of the block and grout do not have a significant effect on the relative decrease of capacity with increasing eccentricity. The percent solid has considerable effect on the relative capacities for ungrouted prisms. For ungrouted prisms the increase in extreme fiber ultimate compressive stress with increased eccentricity was small, indicating no effect on the strain gradient for hollow blocks. For solid and grouted prisms there was a significant increase in extreme fiber ultimate compressive stress with increased eccentricity (increased strain gradient).
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