• Title/Summary/Keyword: Aljali-Aggregate Reaction(AAR)

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An Experimental Study on the Alkali-Silica Reaction of Crushed Stones (쇄석 골재의 알칼리-실리카 반응에 관한 실험적 연구)

  • 윤재환;정재동;이영수
    • Magazine of the Korea Concrete Institute
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    • v.6 no.2
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    • pp.108-117
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    • 1994
  • This study was performed to investigate the Alkali-Silica Reaction(ASR) of crushed stones using chemical analysis, polarization microscope, XRD, chemical method(KS F 2545, ASTM C 289), mortar-bar method( KS F 2546, ASTM C 227) and Scanning Electron Microscope (SEM ) and Energy Dispersive X-ray Analysis(EDXA) of reaction products by ASK in the mortar bars and to investigate the influence on alkali content and kind of added alkali to the ASR. Test results show that one kind of domestic crushed stone is estimated as deleterious by ASTM chemical method and mortar bar method, and reaction product is proved as alkali silicate gel by EDXA.