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한국건축시공학회 / v.8, no.2, 2008년, pp.99-106 
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팽창재 종류 및 치환율에 따른 시멘트 페이스트의 레올로지 특성
( A Study on Rheological Properties of Cement Paste using Expansive Additives by Kind & Replacement Ratio ) |
| 박춘영;강병희; 동아대학교 대학원;동아대학교 건축학부;
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| 초 록 |
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| To improve concrete tensile strength and bending strength, New plan that have more economical and simple manufacture process is groped. By an alternative plan, chemical pre-stressed concrete is presented. In this study, we analyzed the rheological properties of cement paste with the kind and replacement ratio of k-type CSA type expansive additives that is used mainly in domestic. and we suggested that the algorithm of a mixing plan in the chemical pre-stressed concrete and from this, we presented the basic report for the right mixing plan. From the results, Flow increased more or less according to use of expansive additives. This phenomenon was observed by increasing paste amount that shows as substitution for expansive additives that specific gravity is smaller than that of cement. As linear regression a result supposing paste that mix expansive additives by Bingham plastic fluid. The shear rate and shear stress expressed high interrelationship. therefore, flow analysis of quantitative was available. The plastic viscosity following to replacement ratio of expansive additives is no change almost, the yield value is decreased in proportion to the added amount of expansive additives. Through this experiment, we could evaluate rheological properties of cement paste using the expansive additives. Hereafter by an additional experiment, we must confirm stability assessment of material separation by using the aggregate with the kind and replacement ratio of expansive additives. |
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| 키워드 |
| 팽창재;페이스트;레올로지;점도계;항복치;소성점도;Expansive additives;Paste;Rheology;Viscometer;Yield value;Plastic viscosity; |
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한국건축시공학회지 / v.8, no.2, 2008년, pp.99-106
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200821036730089)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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