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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: Acid Attack of Concrete Caused by Sulfur Bacteria Action
Author(s): Henry T. Thorton, Jr.
Publication: Journal Proceedings
Appears on pages(s): 577-584
Keywords: acids;bacteria;chemical attack;chemical tests;corrsion;deterioration;dissolved gases; hydrogen sulfide;oxygen;sulfates;sulfides;sulfric acid;thiobacillus; water tunnels.
Abstract:The concrete in two artificial lakes decomposed to a "mush" consistancy to depth of up to 1 1/4 in. (approximately 32 mm) over aperiod of about 5 years. The program of investigation includes a liturature review, sample collection, and physical, chemical, and bacteriorlogical tests. It is concluded that the deterioration is due to acid attack and is the final stage of a corrosive process caused by sulfur bacteria action. Immediate and long range remedial measures are suggested for consideration for implementation at both sites. Attention is drawn to the fact that undected deterioration of other concrete structures may be in progress.
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