Abstract
Recent deterioration of concrete caused by sulfuric acid attack in sewage and wastewater treatment plants has been reported. As a countermeasure to this deterioration, acid resistant cementitious material has been developed. It is thought that the clarification of sulfuric acid resistance mechanism of this cementitious material and the development of a simple evaluation method for this type of material lead to the development of higher quality acid resistant cementitious material. In this study, a stirring test using sulfuric acid and cement paste powder was performed to know the reactivity of hydration products with sulfuric acid and to develop a simple evaluation method of the resistance to sulfuric acid. As a result, it was found that the resistance to sulfuric acid of the cementitious material could be evaluated by the stirring test method and the reactivity of specimens with sulfuric acid was varied in the type of mineral admixture.
Published Version
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