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Comparative Evaluation of Micro-Deval Abrasion Test with Other Toughness/Abrasion Resistance and Soundness Tests1
Publisher: American Society of Civil Engineers
Abstract: This study presents the findings from a research investigation conducted to characterize the toughness/abrasion resistance and soundness of aggregates from 23 sources using the micro-Deval, Los Angeles (LA) abrasion, sodium ...
Effectiveness of Fly Ash and Slag in Mitigating Alkali–Silica Reaction Induced by Deicing Chemicals
Publisher: American Society of Civil Engineers
Abstract: Recent studies have shown that potassium acetate based deicers are capable of triggering deleterious expansion and cracking in concrete specimens containing alkali–silica reactive (ASR) aggregates. This paper presents the ...
Miniature Concrete Prism Test: Rapid Test Method for Evaluating Alkali-Silica Reactivity of Aggregates
Publisher: American Society of Civil Engineers
Abstract: Existing test methods to assess alkali-silica reactivity of aggregates such as the accelerated mortar bar test (AMBT) has been shown to be less than satisfactory due to excessive false-positive and false-negative test ...
Analysis of Compatibility between Repair Material and Substrate Concrete Using Simple Beam with Third Point Loading
Publisher: American Society of Civil Engineers
Abstract: Due to the availability of a wide variety of repair materials in the industry with a wide range of physical and mechanical properties, it is important to determine the compatibility of a repair material with the substrate ...
Evaluation of Sulfate Resistance of Portland Cement Mortars Containing Low-Carbon Rice Husk Ash
Publisher: American Society of Civil Engineers
Abstract: In this study, a low-carbon rice husk ash (RHA) was used as a supplementary cementing material in cement mortars to evaluate its sulfate resistance in sodium and magnesium sulfate solutions. The sulfate resistance of these ...
Effectiveness of Lithium Nitrate in Mitigating Alkali-Silica Reaction in the Presence of Fly Ashes of Varying Chemical Compositions
Publisher: American Society of Civil Engineers
Abstract: In this study, quantitative analysis of the combined effects of fly ash and lithium admixture in mitigating alkali-silica reaction (ASR) in portland cement mortars prepared with Spratt limestone was investigated. The results ...
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