INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Mix Proportion Design and Evaluation Approach of Coral Aggregate Seawater Concrete |
GONG Wei, YU Hongfa, MA Haiyan, DA Bo
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Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 |
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Abstract For the sake of relieving the resource shortage in the construction of large-scale coastal defense projects in reef of the South China Sea, coral aggregate seawater concrete (CASC) with better regional applicability was designed. We employed the orthogonal test and the signal-to-noise ratio (SNR) based Taguchi method to explore the impact of total cementitious material content, pre water absorption rate, sand rate and net water to binder ratio on compressive strength of CASC. Then we verified the superiority of Taguchi method, confirmed and quantified the influe-nce degree of various factors on compressive strength of CASC, proposed a multivariate nonlinear regression model on compressive strength of CASC. The results show that the SNR based Taguchi method exhibited great superiority to conventional orthogonal test. The optimum design parameters of CASC turned out to be the total cementitious material content of 550 kg·m-3, pre water absorption rate of 5%, sand rate of 50%, and net water to binder ratio of 0.25. The influence degree of pre water absorption, net water to binder ratio, sand rate and total cementitious material content on CASC decreased successively. Specifically, the contribution of pre water absorption rate accounted the largest proportion (67.6%), followed by net water to binder ratio (17.8%), and sand rate (0.7%). The establishment of regression model show exceeding significance to guide the preparation of high-strength CASC.
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Published: 16 September 2019
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Fund:This work was supported by the National Natural Science Foundation of China (51678304, 11832013), the National Key Basic Research Development Plan of China (973 Plan)(2015CB655102), the Natural Science Foundation of Jiangsu Province (BK20180433). |
About author:: Wei Gongreceived his M.S. degree in June 2017 from Lanzhou University of Technology. Since September 2017, he has studied for doctorate degree at Nanjing University of Aeronautics & Astronautics, focusing on the research of durability of concrete. Hongfa Yuis a professor in the Department of Civil Engineering at Nanjing University of Aeronautics and Astronautics, Nanjing, China. He received his B.S. degree from Shenyang Engineering University, Shen-yang, China and his Ph.D. degree from Southeast University, Nanjing, China. His research interests include new cement concrete materials, the durability and ser-vice life prediction of concrete structures in frozen salt environments, etc. |
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|
[1] |
Wang Lei, Mao Yadong, Lv Haibo, et al. Construction and Building Materials, 2018, 162,442.
|
[2] |
Da Bo, Yu Hongfa, Ma Haiyan,et al.Journal of the Chinese Ceramic Society,2016,44(2),253(in Chinese).达波,余红发,麻海燕,等.硅酸盐学报,2016,44(2),253.
|
[3] |
Da Bo, Yu Hongfa, Ma Haiyan, et al. Construction and Building Mate-rials, 2016, 123,47.
|
[4] |
Wang Jie, Feng Peng, Hao Tingyu, et al. Construction and Building Materials, 2017, 147, 272.
|
[5] |
Da Bo, Yu Hongfa, Ma Haiyan, et al. Construction and Building Mate-rials, 2018, 155, 251.
|
[6] |
Tang Junwu, Cheng Hua, Zhang Qibin, et al. Construction and Building Materials, 2018, 165, 647.
|
[7] |
Dempsey G. ACI Journal Proceedings, 1951, 48(10), 157.
|
[8] |
Nutter B E. Journal of American Concrete Institute, 1943, 15(1), 61.
|
[9] |
Da Bo, Yu Hongfa, Ma Haiyan, et al. Journal of Building Structures, 2017, 38(1),144(in Chinese).达波,余红发,麻海燕,等.建筑结构学报,2017,38(1),144.
|
[10] |
Wang Lei, Zhao Yanlin. Advanced Materials Research, 2012, 446-449, 3369.
|
[11] |
Wang Lei, Mao Yadong, Chen Shuang, et al. Journal of Building Materials, 2018, 21(2),286(in Chinese).王磊,毛亚东,陈爽,等.建筑材料学报,2018,21(2),286.
|
[12] |
Wang Fang, Zha Xiaoxiong. Journal of Building Structures, 2013, 34(S1),288(in Chinese).王芳,查晓雄.建筑结构学报,2013,34(S1), 288.
|
[13] |
Yang Shutong, Yang Chao, Huang Meilin, et al. Construction and Buil-ding Materials, 2018, 173, 272.
|
[14] |
Liang Yuanbo, Lu Bo, Huang Shaojian. Ocean Technology, 1995, 14(2), 58(in Chinese).梁元博, 卢博, 黄韶健.海洋技术, 1995, 14(2), 58.
|
[15] |
Yu Yiming, Liu Song, Wu Ke, et al. New Building Materials, 2018(3), 27(in Chinese).余以明,刘松,吴柯,等.新型建筑材料, 2018(3), 27.
|
[16] |
Zhao Yanlin, Han Chao, Zhang Shuanzhu, et al. Concrete, 2011(2), 43(in Chinese).赵艳林, 韩超, 张栓柱, 等. 混凝土, 2011(2), 43.
|
[17] |
Wang Lei, Zhao Yanlin, Lv Haibo. Concrete, 2012(2), 99(in Chinese).王磊, 赵艳林, 吕海波.混凝土, 2012(2), 99.
|
[18] |
Pan Baizhou,Wei Zhuobin. Engineering Mechanics, 2015, 32(S1),221(in Chinese).潘柏州, 韦灼彬. 工程力学, 2015, 32(S1), 221.
|
[19] |
Han Chao. Experimental research on the fundamental mechanical beha-vior of seawater coral concrete. Master’s Thesis, Guangxi University, China,2011(in Chinese).韩超.海水拌养珊瑚混凝土基本力学性能试验研究.硕士学位论文,广西大学,2011.
|
[20] |
Mi Renjie, Yu Hongfa, Ma Haiyan, et al. Ocean Engineering, 2016, 34(4), 48(in Chinese).糜人杰, 余红发, 麻海燕, 等. 海洋工程, 2016, 34(4), 48.
|
[21] |
Bullen F. In:Proceedings of the Third International Colloquium on Concrete in Developing Countries. Beijing, 1990, pp.1.
|
[22] |
Zhu Shouyong, Shui Zhonghe, Yu Rui, et al. Bulletin of the Chinese Ceramic Society, 2017, 36(12), 3951(in Chinese).朱寿永,水中和,余睿,等.硅酸盐通报,2017,36(12),3951.
|
[23] |
Wang Lei, Fan Lei. China Concrete and Cement Products, 2015(1),1(in Chinese).王磊,范蕾.混凝土与水泥制品,2015(1),1.
|
[24] |
Qiao Hongxia, Gong Wei, Shi Yingying, et al. Emerging Materials Research, 2016, 5(2), 248.
|
[25] |
Hao Yunhong, Fan Jincheng, Xing Yongming, et al. Journal of Building Materials, 2017, 20(1), 124(in Chinese).郝贠洪,樊金承,邢永明,等. 建筑材料学报,2017, 20(1), 124.
|
[26] |
Cai Zhengyong,Wang Zuxian. Application of orthogonal design in concrete, China Architecture & Building Press, China,1985(in Chinese).蔡正泳,王足献. 正交设计在混凝土中的应用,中国建筑工业出版社, 1985.
|
|
|
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