| 논문명 |
산업부산물 치환 및 저점도형 고성능 감수제를 사용한 시멘트 계열 재료의 점도저하 방안 연구 / A Study on Viscosity Reducing of Cement-Based Materials by Replacing Byproducts and Adding Low-Viscosity Type HRWR |
| 수록사항 |
한국건설순환자원학회 논문집, Vol.5 No.4 (2017-12) |
| 주제어 |
소성점도 ; 산업부산물 분말 ; 저점도형 고성능 감수제 ; 고성능 감수제 ; 고성능 시멘트 페이스트 ; Plastic viscosity ; Byproduct powders ; Low viscosity type water HRWR ; High range water reducer ; High performance cement paste |
| 요약2 |
The aim of this research is providing a fundamental idea on reducing viscosity of high performance cementitous materials. In rheological aspect, to determine the fluidity of the cementitious materials, both yield stress and viscosity should be controlled. For the high performance cementitious materials with low water-to-binder ratio and high volume fraction, it was difficult to reduce the viscosity with superplasticizer while reducing yield stress was relatively easy. Hence, in this research, with the goal of reducing viscosity of the cementitious materials, both ways of reducing viscosity were suggested: achieving proper combination of powder conditions, and adding low-viscosity typed water reducer. First, by replacing various byproduct powders, specifically, raw coal ash and wasted limestone powder showed favorable results on reducing viscosity of the cement paste. Regarding the low viscosity typed superplasticizer, it showed a good performance on reducing viscosity comparing with generic superplasticizer. Therefore, based on the results of this research, it is expected to provide a fundamental idea on reducing viscosity of cementitious materials by various methods. |
