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Preventive Measures on Alkali-Silica Reaction of Crushed Stones
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 Title & Authors
Preventive Measures on Alkali-Silica Reaction of Crushed Stones
Jun Ssang-Sun; Lee Hyo-Min; Seo Ki-Young; Hwang Jin-Yeon; Jin Chi-Sub;
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In Korea, due to the insufficiency of natural aggregates and increasing needs of crushed stones, it is necessary to examine the alkali-silica reaction of the crushed stones. The reaction produces an alkali-silica reaction gel which can imbibe pore solution and swell to generate cracks that are visible In affected concrete. In general, crushed stones are tested by petrograptuc examination, chemical method and mortar-bar method, but the most reliable method Is mortar-bar test. This study tested alkali-silica reactivity of crushed stones of various rock types using ASTM C 227 and C 1260, and compared the results of two test methods. This study also analyzed effects of particle size and grading of reactive aggregate on alkali-silica reaction expansion of mortar-bar. The effectiveness of mineral admixtures to reduce detrimental expansion caused by alkali-silica reaction was investigated through the ASTM C 1260 method. The mineral admixtures used were nv ash, silica fume, metakaolin and ground granulated blast furnace slag. The replacement ratios of 0, 5, 10, 15, 25 and were commonly applied for all the mineral admixtures and the replacement ratios of 45 and were additional applied for the admixtures that could maintain workability. The results indicate that replacement ratios of for ay ash, for silica fume, for metakaolin or for ground granulated blast furnace slag were most effective to reduce alkali-silica reaction expansion under the experimental conditions.
crushed stone;alkali-silica reaction;fly ash;silica fume;metakaolin;
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한국콘크리트학회논문집, 2009. vol.21. 4, pp.531-537 crossref(new window)
이진용, 최수홍, 강석화, 이광명, '플라이애쉬 함유량이 콘크리트의 굳기전 성질 및 역학적 특성에 미치는 영향', 콘크리트학회논문집, 제11권, 6호, 1999, pp.25-33

김현수, 지남용, '고로슬래그미분말 치환 콘크리트의 염화물 침투특성에 관한 연구', 한국콘크리트학회 봄학술발표회논문집, 13권, 1호, 2001, pp.997-1002

김형태, '실리카퓸 및 실리카퓸 콘크리트의 특성과 이용' 콘크리트학회지, 3권, 3호, 1991, pp.23-30

김용태, 안태호, 강범구, 이정율, 김병기, '콘크리트 혼화재료로서의 메타카올린의 기초적인 연구', 한국콘크리트학회 가을학술발표회논문집, 13권, 2호, 2001, pp.281 - 286

윤재환, 정재동, 이영수, '쇄석 골재의 알칼리-실리카 반응에 관한 실험적 연구', 콘크리트학회논문집, 6권, 2호, 1994, pp.108-117

전쌍순, 이효민, 황진연, 진치섭, 박현재, '폐 콘크리트에서 분리된 재생골재와 재생콘크리트의 공학적 특성규명을 위한 실험적 연구', 대한지질공학회, 13권, 3호, 2003, pp.345-358

이장화, 김성욱, '국내 쇄석골재의 화학반응성 연구', 콘크리트학회논문집, 7권, 1호, 1995, pp.136-144

Monteiro, P. J. M., Shomglin, K., Wenk, H. R. and Hasparyk, N. P., 'Effect of Aggregate Deformation on Alkali-Silica Reaction,' ACI Materials Journal, Vol.98, No.2, 2001, pp.179-182

Malvar, L. J., Cline, G. D., Burke, D. F., Rollings, R., Sherman, T. W. and Greene, J. L., 'Alkali-Silica Reaction Mitigation' State of the Art and Recommendations,' ACI Materials Journal, Vol.99, No.5, 2002, pp.480-489

Aquino, W., Lange, D. A. and Olek, J., 'The Influence of Metakaolin and Silica Fume on the Chemistry of Alkali-Silica Reaction Products,' Cement and Concrete Composite, Vol.23, No.6, 2001, pp.485-493 crossref(new window)