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A Fundamental Study on Application Eco Friendly Grouting Material for Old Aged Reserve Reinforcement

노후 저수지 보강을 위한 환경 친화적 그라우팅 주입재 적용에 관한 기초연구

  • Received : 2019.04.12
  • Accepted : 2019.05.06
  • Published : 2019.05.25

Abstract

There are 17,427 reservoirs in Korea, of which about 96% were built before the mid 1980s. Therefore, aging is severe and reinforcement are necessary. In addition, aged reservoirs, which are more than 50 years old, account for 70% of the total. Therefore, there is a problem such as the collapse of the reservoir and the decrease of the storage capacity due to progress of aging with time. The grouting method using cement is mainly used as maintenance and reinforcement method of old reservoir. However, the grouting method using cement has engineering and environmental problems. In order to solve the engineering and environmental problems of cement grouting method, an eco-friendly grouting material was developed that mixes circular resource grouting binder, high molar ratio sodium silicate and colloidal silica. The engineering and environmental properties of the developed injection materials were evaluated by conducting gel time, homo-gel strength, sea water resistance test and environmental stability evaluation. Also, examined the possibility of replacing OPC existing aged reservoir reinforcement methods. As a result, it was found out that it was better than the conventional cement method in terms of engineering and environment. However, since this study is the result of laboratory test, it is necessary of verify the application at field of aged reservoir.

Keywords

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Cited by

  1. 순환자원 활용 지반차수재의 노후저수지 보강 적용사례 및 성능검증에 관한 연구 vol.22, pp.3, 2019, https://doi.org/10.14577/kirua.2020.22.3.17