Effect of Silica Fume on the Properties of Cement Paste with Alkali-free Accelerator
CHEN Chao1,2, SUN Zhenping1,2
1 School of Materials Science and Engineering, Tongji University, Shanghai 201804; 2 Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Shanghai 201804
Abstract: This study evaluates the effect of silica fume on the properties of cement paste with alkali-free accelerator. Setting times, compressive strength, hydration heat emission, early volume change and rebound rate of accelerated cement paste with different silica fume dosage were measured. The results show that a proper dosage of silica fume can shorten the setting time and increase the compressive strength of the accele-rated cement paste, decrease the rebound rate of shotcrete and promote the cement hydration. Moreover, according to the characteristics of the early volume change and hydration heat emission curve, the hydration process of the cement paste with alkali-free accelerator can be divided into four periods, including dissolution-crystallization period, crystal growth period, acceleration period and stable period. The effect of silica fume on the properties of cement paste with alkali-free accelerator mainly manifest in crystal growth period and acceleration period.
陈超, 孙振平. 硅灰对掺有无碱速凝剂水泥浆体性能的影响[J]. 材料导报, 2019, 33(14): 2348-2353.
CHEN Chao, SUN Zhenping. Effect of Silica Fume on the Properties of Cement Paste with Alkali-free Accelerator. Materials Reports, 2019, 33(14): 2348-2353.
1 Zhang L C, Li S C, Li S C, et al. Journal of Shangdong University (Engineering Science), 2016, 46(5), 102(in Chinese). 张露晨, 李树忱, 李术才,等.山东大学学报(工学版), 2016, 46(5), 102. 2 Li S C,Feng B Y,Ma T F,et al.Journal of China Coal Society, 2014, 39(S1), 57(in Chinese). 李树忱, 冯丙阳, 马腾飞,等.煤炭学报, 2014, 39(s1), 57. 3 Jiang B. Journal of Liaoning Technical University (Natural Science), 2016, 35(3), 270(in Chinese). 姜波.辽宁工程技术大学学报(自然科学版), 2016, 35(3), 270. 4 Yang L Y, Tian J T, Yang Y B, et al. Tunnel Construction, 2017, 37(5), 543(in Chinese). 杨力远, 田俊涛, 杨艺博,等. 隧道建设, 2017, 37(5), 543. 5 Li F H, Liu H, Ma Q Y.Bulletin of the Chinese Ceramic Society, 2016, 35(10), 3203(in Chinese). 李伏虎, 刘辉, 马芹永.硅酸盐通报, 2016, 35(10), 3203. 6 Li Y H, Zhang L C, Li S C, et al. Shanxi Architecture, 2016, 42(29), 102(in Chinese). 李育慧, 张露晨, 李树忱,等.山西建筑, 2016, 42(29), 102. 7 Wang L F, Li Q Q, Dong S Q, et al.Scientific and Technological Wind, 2017(10), 103(in Chinese). 王龙飞, 李茜茜, 董树强,等. 科技风, 2017(10), 103. 8 Salvador R P, Cavalaro S H P, Cincotto M A, et al. Cement & Concrete Research, 2016, 89, 230. 9 Zhang J G. Tunnel Construction, 2010, 30(1), 6(in Chinese). 张建纲.隧道建设, 2010, 30(1), 6. 10 Wang Z, Huang T Y, Liu Z, et al. Ready-mixed Concrete, 2014(8), 46(in Chinese). 王喆, 黄天勇, 刘泽,等. 商品混凝土, 2014(8), 46. 11 Li L H, Wang H L, Zhao Q K, et al. Shangxi Hydrotechnics, 2009(3), 28(in Chinese). 李路华, 王海龙, 赵庆宽,等.山西水利科技, 2009(3), 28. 12 Bao Z G. Ready-mixed Concrete, 2010(7), 53(in Chinese). 包志刚.商品混凝土, 2010(7), 53. 13 Lothenbach B, Rentsch D, Wieland E. Physics & Chemistry of the Earth Parts A/B/C, 2014, 70-71(2), 3. 14 Yang X, Sun Z, Shui L, et al. Construction & Building Materials, 2017, 142, 490. 15 Yang X, Sun Z, Yang H, et al. Materials & Structures, 2017, 50(3), 182. 16 Lu H H, Song X D, Yang Z H. Modern Science Instruction, 2011(6),167(in Chinese). 卢海虹, 宋绪东, 杨正红. 现代科学仪器, 2011(6), 167. 17 Shui Z H, Wei X S, Wang D M. Modern concrete science and technology,Science Press, China,2014. 水中和, 魏小胜, 王栋民. 现代混凝土科学技术, 科学出版社, 2014. 18 Xu Y D, Zhang L J, Lu Y L. Concrete, 2005(9), 39(in Chinese). 徐亦冬, 张利娟, 陆云龙.混凝土, 2005(9), 39. 19 Yang Y X, Liu X Q. Communications Science and Technology Heilongjiang, 2007, 30(6), 51(in Chinese). 杨玉喜, 刘学全.黑龙江交通科技, 2007, 30(6), 51. 20 Wang F H, Li N, Qian J S, et al. New Building Materials, 2010, 37(1), 13(in Chinese). 汪发红, 李宁, 钱觉时,等.新型建筑材料, 2010, 37(1), 13. 21 Yin D X, Wang H B, Liu Y, et al. Science and Technology Innovation Herald, 2017, 14(3), 16(in Chinese). 尹大祥, 王宏波, 刘瑛,等.科技创新导报, 2017, 14(3), 16. 22 Salvador R P, Cavalaro S H P, Segura I, et al. Construction & Building Materials, 2016, 111, 386. 23 Liao G S, Xu L, Liao Y S. Journal of Building Materials, 2017(6), 840(in Chinese). 廖国胜, 徐路, 廖宜顺.建筑材料学报, 2017(6), 840. 24 Cai Y, Liu X Y, Kong X M, et al. Journal of the Chinese Ceramic Society, 2016, 44(11), 1563(in Chinese). 蔡熠, 刘晓勇, 孔祥明,等.硅酸盐学报, 2016, 44(11), 1563.