Lee Taegyu, Kim Suna, Park Sun-Gyu
Department of Fire and Disaster Prevention, Semyung University, 65 Semyung-ro, Jecheon-si, Chungbuk 27136, Korea.
Department of Architectural Engineering, Mokwon University, 88 Doanbukro, Seogu, Daejeon 35349, Korea.
Materials (Basel). 2020 Oct 16;13(20):4620. doi: 10.3390/ma13204620.
This study evaluated the use of electrolyzed alkaline-reduced water instead of an alkaline activator for the production of a strong cement matrix with a large blast furnace slag replacement ratio. The flexural and compressive strength measurements, X-ray diffraction analysis, and scanning electron microscopy images of the cement matrices produced using electrolyzed alkaline-reduced water and regular tap water, and with blast furnace slag replacement ratios of 30 and 50% were compared to a normal cement matrix. The cement matrix produced using electrolyzed alkaline-reduced water and blast furnace slag exhibited an improved early age strength, where hydrate formation increased on the particle surface. The cement matrix produced using electrolyzed alkaline-reduced water exhibited a high strength development rate of over 90% of ordinary Portland cement (OPC) in BFS30. Therefore, the use of electrolyzed alkaline-reduced water in the place of an alkaline activator allowed for the formation of a very strong cement matrix in the early stages of aging when a large blast furnace slag replacement ratio was used.
本研究评估了使用电解碱性还原水替代碱性活化剂来生产具有高矿渣替代率的高强度水泥基体。将使用电解碱性还原水和普通自来水制备的、矿渣替代率分别为30%和50%的水泥基体的抗折和抗压强度测量结果、X射线衍射分析以及扫描电子显微镜图像，与普通水泥基体进行了比较。使用电解碱性还原水和矿渣制备的水泥基体早期强度有所提高，颗粒表面的水合物形成增加。在BFS30中，使用电解碱性还原水制备的水泥基体强度发展速率较高，超过了普通硅酸盐水泥（OPC）的90%。因此，当使用高矿渣替代率时，使用电解碱性还原水替代碱性活化剂能够在老化早期形成非常强的水泥基体。
