Influence and Mechanism of River Sand and Quartz Sand on Properties of Steam-cured Ultra-high Performance Concrete
ZHENG Kunpeng1, GE Haosheng2,3, LI Zhengchuan1, LIU Guiying1, TIAN Guangwen1, WANG Wanzhi1, XU Guohua1, SUN Zhenping2,3,*
1 CREEC(Chongqing) Survey, Design and Research Co., Ltd., Chongqing 400023, China 2 Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 201804, China 3 School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
Abstract: River sand and quartz sand with similar particle size distributions were used for developing ultra-high performance concrete (UHPC) with different binder to sand ratios. Multiple properties of UHPC using two types of fine aggregates with different binder to sand ratios in fresh and hardened state were investigated with various methods. The results showed that, UHPC prepared with river sand had a better workability than that with quartz sand. UHPC prepared with river sand and binder to sand ratio of 1.0 had the highest compressive strength and tensile strength as well as a remarkable strain hardening behavior. UHPC prepared with quartz sand and binder to sand ratio of 0.8 had the lowest tensile strength and almost no strain hardening behavior. It was found that, sand type and binder to sand ratio had limited impact on products of cement hydration and pozzolanic reaction. A depletion of Ca(OH)2 in hardened paste was found in all samples. The diameter of majority pores present in UHPC was smaller than 1 μm. Compared with UHPC prepared with river sand, that with quartz sand had more pores with a diameter smaller than 1 μm. ITZ between river sand and hardened paste was denser than that between quartz sand and hardened paste. In addition, the bond between paste and fiber of UHPC prepared with river sand was better than that with quartz sand based on visual inspection of SEM images.
郑琨鹏, 葛好升, 李正川, 刘贵应, 田光文, 王万值, 徐国华, 孙振平. 河砂与石英砂对蒸养超高性能混凝土(UHPC)性能的影响及机理[J]. 材料导报, 2024, 38(7): 22040216-6.
ZHENG Kunpeng, GE Haosheng, LI Zhengchuan, LIU Guiying, TIAN Guangwen, WANG Wanzhi, XU Guohua, SUN Zhenping. Influence and Mechanism of River Sand and Quartz Sand on Properties of Steam-cured Ultra-high Performance Concrete. Materials Reports, 2024, 38(7): 22040216-6.
1 Zhao J, Shi H X, Lu X Y. Properties and test methods of ultra-high performance concrete, China Building Materials Industry Press, China, 2019, pp. 55 (in Chinese). 赵筠, 师海霞, 路新瀛. 超高性能混凝土基本性能与试验方法, 中国建材工业出版社. 2019, pp.55. 2 Sobuz H R, Visintin P, Ali M M, et al. Construction and Building Materials, 2016, 111, 251. 3 Wang J Y, Yan Z H, Geng L P. Journal of Harbin Institute of Technology, 2019, 51(6), 19(in Chinese). 王俊颜, 闫珠华, 耿莉萍. 哈尔滨工业大学学报, 2019, 51(6), 19. 4 Yang R, Yu R, Shui Z, et al. Cement and Concrete Composites, 2019, 99, 203. 5 Ding Q J, Peng C K Y, Hu J, et al. Bulletin of the Chinese Ceramic Society, 2019(2), 488(in Chinese). 丁庆军, 彭程康琰, 胡俊, 等. 硅酸盐通报, 2019(2), 488. 6 Zhang G Z, Wang Y X, Ge J C, et al. Journal of Building Materials, 2021, 24(3), 500(in Chinese). 张高展, 王宇譞, 葛竞成, 等. 建筑材料学报, 2021, 24(3), 500. 7 Zhou Min, Wu Zemei, Ouyang Xue, et al. Materials Reports, 2023, 37(18), 22060073 (in Chinese). 周敏, 吴泽媚, 欧阳雪, 等. 材料导报, 2023, 37(18), 22060073. 8 Chen Y W, Li Z M, Wu K W. Concrete, 2018(3), 68(in Chinese). 陈彦文, 李子明, 吴克威. 混凝土, 2018(3), 68. 9 Kang S T, Lee K S, Choi J I, et al. International Journal of Concrete Structures and Materials, 2016, 10(3), S33. 10 Choi J I, Song K I, Song J K, et al. Composite Structures, 2016, 138, 116. 11 Park S H, Dong J K, Ryu G S, et al. Cement and Concrete Composites, 2012, 34, 172. 12 Sukhoon P, Hyeong K, Bang Y L. Cement and Concrete Composites, 2017, 84, 28. 13 Yang Yibo, Xia Yinggan, Liu Shaokun, et al. Materials Reports, 2023, 37(4), 22020028 (in Chinese). 杨医博, 夏英淦, 刘少坤, 等. 材料导报, 2023, 37(4), 22020028. 14 Pyo S, Kim H K, Lee B Y. Cement and Concrete Composites, 2017, 84, 28. 15 Shen P, Lu L, He Y, et al. Cement and Concrete Research, 2019, 118, 1. 16 Ge X L, Zhu H Y. Journal of Building Materials, 2020, 23(4), 811 (in Chinese). 葛晓丽, 褚洪岩. 建筑材料学报, 2020, 23(4), 811. 17 Scrivener K L, Laugesen C P. Interface Science, 2004, 12, (4), 411. 18 Bian Chen, Guo Junyuan, Xiao Jianzhuang, et al. Materials Reports, 2023, 37(23), 22070261 (in Chinese). 边晨, 郭君渊, 肖建庄, 等. 材料导报, 2023, 37(23), 22070261.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2024, Vol. 38 
