Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
권호 표지

Durability Evaluation of Grout in Cablebolt System

케이블볼트 충전재의 내구성 평가

  • Choi, Jung-In (Chungsuk Engineering) ;
  • Kim, Won-Keun (Dept. of Civil and Environmental System Engineering, Konkuk University) ;
  • Jeon, Jae-Hyun (Dept. of Civil and Environmental System Engineering, Konkuk University) ;
  • Lee, Seok-Won (Dept. of Civil and Environmental System Engineering, Konkuk University)
  • 최정인 ((주)청석엔지니어링) ;
  • 김원근 (건국대학교 사회환경시스템공학과) ;
  • 전재현 (건국대학교 사회환경시스템공학과) ;
  • 이석원 (건국대학교 사회환경시스템공학과)
  • Published : 2010.03.25
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Abstract

Like the shotcrete can be deteriorated by chemical compounds as service years increase, the grout which is used to fasten the cablebolt(rockbolt) system in the underground structures also can be deteriorated by chemical compounds such as sulphate and/or chloride contained in groundwater during service years. This can induce issues on the long term durability of cablebolt(rockbolt) system and consequently on the stability of underground structures. In this study, the deteriorations of long term durability of cement mortar grout by each chemical compound of sulphate or chloride are studied experimentally and also complex deterioration by the mix of sulphate and chloride is investigated. Based on the results obtained in this study, the characteristics and prediction of deterioration of long term durability of cement mortar grout for cablebolt(rockbolt) system are suggested.

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