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한국건축시공학회 / v.8, no.4, 2008년, pp.45-51 
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부순모래를 사용한 초고강도 콘크리트의 공학적 특성에 관한 연구
( A Study on the Engineering Properties of Ultra High-Strength Concrete Utilizing Crushed Sand ) |
| 이상수;노형남;송하영; 한밭대학교 공과대학 건축공학과;한밭대학교 공과대학 건축공학과;한밭대학교 공과대학 건축공학과;
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| 초 록 |
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| Recently, the demand of ultra high-rise building is on the increase in korea due to the rapidly changing movement in economic growth and the expansion of national infrastructure. At the same time, the tendency toward the amount used of concrete has greatly increased every year. In addition, as the seriousness of quantity demanded of aggregate is gathering strength, the active areas of research proceeds to do actively in every place in order to review the usability of crushed sand as a part of the countermeasures. And, it needs to establish the quality standard and service guide, etc. for the practical use. Accordingly, this study was to establish the ratio of water-binder materials as three levels like 23.5, 27.5, and 31.5%, and the replacement ratio as three levels like 0, 50, and 100% in order to define the engineering properties of ultra high-strength concrete using the crushed sand. This study was to examine it after establishing the combined condition by the substitute of the fine aggregate percentage and admixture. From the result of this research above, it may be summed up as follows. 1) The more the replacement ratio of crushed sand and the ratio of water-binder materials increased, the mon the fluidity decreased due to the decrease of irregular grain shape of sand and unit combined discretion. 2) This study found out that 100% of replacement ratio of crushed sand was almost similar level to the compressive strength of concrete using the natural sand. |
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| 키워드 |
| 부순모래;초고강도 콘크리트;유동성;압축강도특성;Crushed sand;Ultra high-strength concrete;Fluidity;Compressive strength properties; |
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한국건축시공학회지 / v.8, no.4, 2008년, pp.45-51
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200833338747033)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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