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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: Tensile Bond Strength Between Aggregate and Cement Paste or Mortar
Author(s): Thomas T. C. HSU and Floyd O. Slate
Publication: Journal Proceedings
Appears on pages(s): 465-486
Abstract:The tensile bond strength between four types of aggregate and cement paste or mortar was studied in about 1000 tests, and related to the tensile strength of the paste or mortar itself. Direct tensile bond strength between aggregate and paste or mortar was found to be significantly less than the tensile strength of the paste or mortar, and dependent on rock type, surface roughness of aggregate, and water cement ratio. The effects of age, moisture content of specimen during testing, and water-cement ratio on the difference between tensile and compressive strength of paste, mortar, and concrete have been investigated and are discussed. Also, an explanation for the effect of sand on the strength of mortar is given.
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