Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)
- 2005.11a
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- Pages.443-446
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- 2005
Properties of Quality & Mortar Application of Crushed Sand According to the Producing Type
생산 방식에 따른 부순 모래의 특성 및 모르타르 적용성
- Published : 2005.11.01
Abstract
Recently, according to increase use of concrete which is the main material of construction, the natural aggregate of good quality is more and more decreased. Most of all, among the concrete materials, the development of alternation materials of sand is urgently needed. In this study, investigating the production equipment and the sample of crushed sand company and analyzing properties of sand, manufactured mortar by the KS to use crushed sand as the fine aggregate of concrete material. The experiment result is as follows. 1. The density, an absorptivity, and the amount of 0.08mm passage ratio of crushed sand, and the mortar used crushed sand satisfied KS. The mechanical results is similar to sea sand. 2. The crushed sand which used impact crusher instead of cone crusher for 3rd or 4th crusher was similar properties to sea sand, so it is judged that impact crusher has high effect of particle shape improvement of crushed sand.
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