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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: Permeability, Acid, and Absorption Tests Of Mortars Used IN Dry Tamped Silo Staves
Author(s): C. A. Hughes
Publication: Journal Proceedings
Appears on pages(s): 553-578
Abstract:Data on the permeability, acid resistance, and absorptions of specimens cut from concrete silo staves of widely varying properties. A method of test for relative acid resistance was developed using 0.16N lactic and acetic acid solution. Data from companion tests using phosphoric acid solutions, molasses solu-tions, corn juice, and silage juice indicate that the lactic and acetic acid solution may be used to determine qualitatively the relative resistance of mortars to the above solutions. Quantitatively the relative re- sistance depends both on the solution and the condition of exposure. For these tests the resistance of mortars to corrosion increased with increase in the flexural strength and with increase in the cement content but no critical strength or cement content was apparent. The absorption tests showed clearly that the 24 hr absorption was inferior to the 5 min a bsor p-tion, or the ratio of 5 min absorption to the 24 hr absorption, as a criterion of mortar quality. A few data on hydrostatic heads in silos indicate the need for more information on the exposure conditions existing in a silo.
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