Date of Award
Civil and Environmental Engineering
Engineering, Materials Science.
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A study into the effectiveness of various lithium salts and two lithium-containing minerals to prevent damage to concrete resulting from alkali-silica reaction is presented. An accelerated testing method recently proposed by Hudec and Larbi was used as the expansion test. Length changes were measured with a double linear variable differential transformer connected to a TRS-80 Model III computer. Three reactive aggregates and one unreactive aggregate were used. Lithium carbonate, lithium chloride, lithium fluoride, and lithium hydroxide were found to be effective in reducing expansions due to alkali-silica reaction. Four other salts, lithium acetate, lithium bromide, lithium nitrate, and lithium perchlorate were not effective in reducing the expansion. The lithium-containing minerals also proved to be ineffective against alkali silica reaction. It is concluded that the effectiveness of the lithium salts against alkali-silica reaction is related to the ionic structure of lithium. (Abstract shortened by UMI.)Dept. of Geology and Geological Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1991 .B353. Source: Masters Abstracts International, Volume: 30-04, page: 1452. Thesis (M.A.Sc.)--University of Windsor (Canada), 1991.
Banahene, Nana K., "Inhibiting alkali silica reaction in concrete with lithium salts." (1991). Electronic Theses and Dissertations. 2449.