Experiment Study on Dynamic Impact Properties of Coral Aggregate Seawater Concrete
YUE Chengjun1, YU Hongfa1, MA Haiyan1, ZHANG Yan2, MEI Qiquan1, DA Bo1
1 Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 2 Department of Construction Engineering, Nanjing Institute of Technology, Nanjing 210009
Abstract: The impact strength and toughness of coral aggregate seawater concrete (CASC) were improved by adding sisal fibers and using basic magnesium sulfate cement (BMSC).The CASC was subjected to dynamic impact compression properties using the Φ75 mm split Hopkinson pressure bar (SHPB) to obtain impact compression properties at four strain rates. The result show that CASC has obvious strain rate hardening effect . When the strain rate is in the range of 56—137 s-1, the basic magnesium sulfate cement and sisal fiber is 1.19 times to 1.29 times the DIF of ordinary Portland cement CASC. Both sisal fiber and BMSC have toughening properties for CASC. After comprehensive application, the toughness index increases by 2.24 times, 1.86 times, 1.35 times and 1.18 times, respectively. After adding sisal fiber (the content is 3 kg/m3) or using BMSC, the impact resistance of CASC is enhanced, and the comprehensive application is better than using one of them alone.
[1] Fang Q, Liu J C, Zhang Y D, et al. Engineering Mechanics, 2001, 18(2),1(in Chinese). 方秦, 柳锦春, 张亚栋, 等. 工程力学, 2001, 18(2),1. [2] Zhao J, Yu S L. Liberation Army Daily, 2012, 15(9),11(in Chinese). 赵杰, 余松林. 解放军报, 2012,15(9),11. [3] Wang H T, Wang L C. Journal of Building Materials, 2007(2),188 (in Chinese). 王海涛, 王立成. 建筑材料学报, 2007(2), 188. [4] Wang L, Xiong Z J, Liu C P, et al. Journal of Henan Institute of Technology, 2014, 33(6), 826(in Chinese). 王磊, 熊祖菁, 刘存鹏, 等. 河南理工学报, 2014, 33(6), 826. [5] Wu C Y, Yu H F, Dong J M, et al. ACI Materials Journal, 2014, 111(3), 291. [6] Wu C Y. Basic theory of basic magnesium sulphate cement and its application technology in civil engineering. Ph.D. Thesis, Chinese Academy of Sciences (Qinghai Research Institute of Salt Lakes), China, 2014(in Chinese). 吴成友. 碱式硫酸镁水泥的基本理论及其在土木工程中的应用技术研究. 博士学位论文,中国科学院研究生院(青海盐湖研究所), 2014. [7] Dempsey G. Journal of the American Concrete Institute, 1951,23, 157. [8] Narver D L. Civil Engineering,1964, 24, 654. [9] Arumugam R A, Ramamurthy K. Magazine of Concrete Research, 1996, 48(9), 141. [10] Wang Y G. Water Sports Engineering, 1988(9),46 (in Chinese). 王以贵. 水运工程, 1988 (9), 46. [11] Chen Z L, Chen T Y, Qu X M. Ocean Engineering, 1991, 9(3), 67(in Chinese). 陈兆林, 陈天月, 曲勋明. 海洋工程, 1991, 9(3), 67. [12] Chen Z L, Sun G F, Tang X N, et al. Journal of Coastal Engineering, 2008, 27(4), 60(in Chinese). 陈兆林, 孙国峰, 唐筱宁, 等. 海岸工程, 2008, 27(4), 60. [13] Zhao Y L, Han C, Zhang S Z, et al. Concrete, 2011(2), 43(in Chinese). 赵艳林, 韩超, 张栓柱, 等. 混凝土, 2011(2),43. [14] Li L, Zhao Y L, Lv H B, et al. Concrete, 2011 (1), 85 (in Chinese). 李林, 赵艳林, 吕海波, 等. 混凝土, 2011(1), 85. [15] Li L, Zhao Y L, Lv H B, et al. Fujian Building Materials, 2011(1), 10(in Chinese). 李林, 赵艳林, 吕海波, 等. 福建建材, 2011(1), 10. [16] Wang L, Zhao Y L, Lv H B. Concrete, 2012(2), 99(in Chinese). 王磊, 赵艳林, 吕海波. 混凝土, 2012(2),99. [17] Li L. Study on the basic characteristics of coral concrete. Ph.D. Thesis, Guangxi University, China, 2012 (in Chinese). 李林. 珊瑚混凝土的基本特性研究. 博士学位论文, 广西大学, 2012. [18] Zhang S Z. Research on fatigue characteristics and microscopic mechanism of coral concrete. Master’s Thesis, Guangxi University, China, 2012(in Chinese). 张栓柱. 珊瑚混凝土的疲劳特性及微观机理研究. 硕士学位论文, 广西大学, 2012. [19] Da B, Yu H F, Yuan Y F, et al. Concrete and Cement Products, 2014(S1), 122(in Chinese). 达波, 余红发, 袁银峰, 等. 混凝土与水泥制品, 2014(S1), 122. [20] Zhang Y. Static and dynamic properties of coral aggregate seawater concrete. Master’s Thesis, Nanjing University of Aeronautics and Astronautics, China, 2017(in Chinese). 章艳.全珊瑚海水混凝土的静、动态性能研究. 硕士学位论文, 南京航空航天大学, 2017. [21] Yuan Y F. Mix design and property of coral aggregate concrete. Master’s Thesis, Nanjing University of Aeronautics and Astronautics, China, 2015(in Chinese). 袁银峰. 全珊瑚海水混凝土的配合比设计和基本性能. 硕士学位论文, 南京航空航天大学, 2015. [22] Li Y L, Hu C M, Wang W. Explosion and Shock Waves, 2005(6), 553 (in Chinese). 李英雷, 胡昌明, 王悟. 爆炸与冲击, 2005(6), 553. [23] Yang S Q, Ma H Y, Yu H F, et al. Silicate Bulletin, 2016, 35(8), 2548 (in Chinese). 杨三强, 麻海燕, 余红发, 等. 硅酸盐通报, 2016, 35(8), 2548. [24] Ji B, Yu H F, Ma H Y, et al. Journal of the Chinese Ceramic Society, 2010, 38(4), 644 (in Chinese). 季斌, 余红发, 麻海燕, 等. 硅酸盐学报, 2010, 38(4),644. [25] Meng Y P, Hu S S. Test Mechanics, 2003, 18(1),106(in Chinese). 孟益平,胡时胜. 试验力学, 2003, 18(1),106.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2019, Vol. 33 
