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한국건축시공학회 / v.6, no.3, 2006년, pp.75-82 
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시멘트 페이스트의 유동 특성에 관한 평가방법 비교연구
( A Comparison Study Between Evaluation Methods on the Rheological Properties of Cement Paste ) |
| 한천구;이건철;허영선; 청주대학교 건축공학부;한국건설기술연구원, 건축도시연구부;청주대학교 대학원;
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| 초 록 |
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| This study investigates the influence of various blending factors on cement paste fluidity and find out the most effective evaluation method of cement paste flow, comparing flow test apparatuses such as ring flow(R-F), flow cone(F-C) and mini slump(M-S). A viscometer also measures the rheology coefficients to secure faithful numerical data. Firstly, series I examines cement paste, affected by several cement products and mineral admixture types in the range of W/B 40%, ordinary fluidity, and W/B 30%, high fluidity. In this series, the three types of cement product depended on companies, are randomly used and the mineral admixture, such as fly ash, blast furnace slag and silica fume, are incorporated in the cement paste, in response to the ratio of 10, 20, to 30%, respectively. In addition, series II studies various chemical admixture types, affecting the cement paste. This series is carried out with manufacturing companies and component types in the range of W/C 30%, high fluidity. For the manufacturing companies, randomly four products are used and for the component types, polycaboxylate, melamine, naphthalene and lignosulfonate type are chosen. Test results showed that in the fluidity test of cement paste considering various types of blending factors, R-F exhibited similar tendency with F-C and M-S. In the analysis of consistency curves measured by viscometer, the fluidity evaluation method using flow test apparatuses was significantly effective, except for the some of the low fluidity specimens. In conclusion of this study, R-F was the most convenient, faithful and effective fluidity evaluation method of cement paste. |
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| 키워드 |
| 시멘트 페이스트;링플로우;플로우콘;미니슬럼프;레올로지 특성;회전점도계;Cement paste;Ring flow;Flow cone;Mini slump;Rheological Properties;Viscometer; |
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한국건축시공학회지 / v.6, no.3, 2006년, pp.75-82
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200634741682530)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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