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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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.1
- 수록면
- 273 - 279 (7page)
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Environmental and economic factors are increasingly encouraging higher value utilization for waste concrete. The use of recycled aggregate as replacement of natural aggregate for the production of concrete structures has become increasingly popular in the concrete construction industry. However, the use of the recycled aggregate is very limited because recycled aggregate which contains large amount of old mortar has very low quality. Therefore, removing the old mortar recycled aggregate is very important. This experimental study is to remove the ingredient of old cement paste from recycled fine aggregate using the acid treatment as chemical processes, and investigates the engineering properties of the mortar using it. Test results indicate that recycled fine aggregate by acid treatment process satisfies the quality standards for the first-grade recycled fine aggregate of KS F 2573. It is also shown that the properties of recycled fine aggregate by acid treat are superior to those of natural fine aggregate. However, the properties of mortar using recycled fine aggregate by sulfuric acid treat was inferior to those of natural water treat.
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