Abstract: The purpose of this contribution is to study the hydration and hardening behavior of sulphoaluminate cement (SAC) paste with certain adding amounts of polycarboxylate superplasticizer (PCE). By designing and conducting relevant experiments, we determined multiple properties indexes for SAC, such as water requirement of normal consistency, initial fluidity, fluidity variation with time, viscosity, setting time and, strength, and also measured out the hydration temperature and the hydration products of SAC paste with PCE. The results indicate that the optimum do-sage of PCE in the SAC paste is 0.4%, under which the water reduction rate and the initial fluidity can exceed 33%, and 375 mm, respectively. Moreover, the initial and final setting time of SAC paste are extended from 24 min and 36 min to 117 min and 129 min, respectively. PCE has considerable improvement effect onto the fluidity of the SAC paste, as well as a certain postponing effect to setting and hardening. A PCE content within 0.2% to 0.4% leads to slow growth of early strength but exerts inconspicuous influence on the strength increase in the later stage. When the PCE content is 0.4%, the 7 d compressive strength and flexural strength reach 102 MPa and 11.6 MPa, which had the increments of 41.8% and 20.8% compared with the control group, respectively.
刘从振, 范英儒, 王磊, 黄永波, 钱觉时. 聚羧酸减水剂对硫铝酸盐水泥水化及硬化的影响[J]. 材料导报, 2019, 33(4): 625-629.
LIU Congzhen, FAN Yingru, WANG Lei, HUANG Yongbo, QIAN Jueshi. Hydration and Hardening of Sulphoaluminate Cement Paste Under the Influence of Polycarboxylate Superplasticizer. Materials Reports, 2019, 33(4): 625-629.
Wang Y M, Su M Z, Zhang L. Sulphoaluminate Cement, Beijing University of Technology Press, China,1999(in Chinese).王燕谋,苏慕珍,张量.硫铝酸盐水泥,北京工业大学出版社,1999.2 Zhang L, Su M Z, Wang Y M. Advances in Cement Research,1999,11(1),15.3 Cuberos A J, Ag D L T, Alvarez-Pinazo G, et al. Environmental Science & Technology,2010,44(17),6855.4 Winnefeld F, Lothenbach B. Cement & Concrete Research,2010,40(8),1239.5 Shi C, Li Y M, Li G X, et al. Bulletin of the Chinese Ceramic Society,2015,34(11),3398(in Chinese).史琛,李益民,李国新,等.硅酸盐通报,2015,34(11),3398.6 Ma B, Ma M, Shen X, et al. Construction & Building Materials,2014,51(2),47.7 Li G X, Liu Y P, Huang R J, et al. Bulletin of the Chinese Ceramic So-ciety,2016,35(2),386(in Chinese).李国新,刘元鹏,黄汝杰,等.硅酸盐通报2016,35(2),386.8 Fu W P, Fu X H, Zhang H J, et al. Bulletin of the Chinese Ceramic So-ciety,2003,22(2),15(in Chinese).候文萍,付兴华,张华杰,等.硅酸盐通报2003,22(2),15.9 Du P, Ye Z M, Cheng X, et al. Journal of University of Jinan,2011,25(2),115(in Chinese).杜鹏,叶正茂,程新,等.济南大学学报,2011,25(2),115.10 Li F X, Chen Y Z, Long S Z, et al. Arabian Journal for Science & Engineering,2013,38(3),571.11 Wang H C, Fang M M, Chen C Q, et al. Concrete,2009(3),66(in Chinese).王恒昌,房满满,陈春泉,等.混凝土,2009(3),66.12 Tan H, Guo Y, Zou F, et al. Construction & Building Materials,2017,139,277.13 Zhang D C, Xiao C M, Zhang Y F, et al. Bulletin of the Chinese Ceramic Society,2007,26(4),816(in Chinese).张德成,肖传明,张云飞,等.硅酸盐通报,2007,26(4),816.14 Li G X, He T S, Hu D W, et al. Construction and Building Materials,2012,26(1),72.15 Zhang L, Glasser F P. Advances in Cement Research,2002,14(4),141.16 Telesca A, Marroccoli M, Pace M L, et al. Cement and Concrete Compo-sites,2014,53,224.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2019, Vol. 33 
