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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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PURPOSES: The purpose of this study is to compare the alkali-silica reactivity for mortar bar and concrete prism specimens using crushed aggregates of 5 types in Korea. And the alkali-silica reactivity for those aggregates are measured by chemical test method. METHODS: The alkali-silica reactivity for those aggregates was measured by chemical test method of KS F 2545, mortar-bar test of KS F 2546, accelerated mortar-bar test method of ASTM C 1260 and concrete prism test method of ASTM C 1293, relatively. RESULTS: The alkali-silica reactivity for those aggregates was verified by chemical test of KS F 2546 and accelerated mortar-bar test of ASTM C 1260. However, it was not by mortar-bar test of KS F 2546 and concrete prism test of ASTM C 1293. CONCLUSIONS: The above results showed that relationship among the four test methods were very low. The results from 3 types of test methods using cement-aggregate combinations appeared to be different. Because the environmental conditions of test methods for measuring the alkali-silica reactivity such as equivalent alkali content(external source), humidity, temperature, and times were different though the aggregates were same. Moreover, alkali-silica reactivity showed the biggest impact when alkalis were supplied form outside and exposed to environmental conditions. The accelerated mortar-bar test method seems to be most appropriate test method for concrete structures exposed to alkali environment.
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참고문헌 (14)
참고문헌 신청
2005 / ASTM C 1260, Standard Test Method for Potential Alkali Reactivity of Aggregate(Mortar-Bar Method) / American Society for Testing and Materials
2005 / ASTM C 1293, Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction / American Society for Testing and Materials
Graham West / 1996 / Alkali-aggregate reaction in concrete roads and bridges, Thomas Telford / Thomas Telford
Hong, SeongHo / 2003 / A Study of Alkali-Aggregate Reaction Using the Chemical Method on the Jointed Cement Concrete Pavement / Proceedings of the KSCE :1856~1859
Hong, SeongHo / 2006 / Alkali- Silica Reaction Behavior by Accelerated Mortar Bar Method for Type of Rocks in Korea / Proceedings of the KSCE :451~454
2005 / ASTM C 1293, Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction / American Society for Testing and Materials
Graham West / 1996 / Alkali-aggregate reaction in concrete roads and bridges, Thomas Telford / Thomas Telford
Hong, SeongHo / 2003 / A Study of Alkali-Aggregate Reaction Using the Chemical Method on the Jointed Cement Concrete Pavement / Proceedings of the KSCE :1856~1859
Hong, SeongHo / 2006 / Alkali- Silica Reaction Behavior by Accelerated Mortar Bar Method for Type of Rocks in Korea / Proceedings of the KSCE :451~454
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