Materials Reports  2021, Vol. 35 Issue (z2): 188-193 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| UHPC Mix Design Method Based on Semi-quantitative |
| YANG Yuzhu1,2, HUANG Weirong1,2, GENG Jiaqing3, CUI Tong4, YAN Maohao2
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1 School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
2 Joint National Engineering Laboratory of Traffic Civil Engineering Materials, Chongqing Jiaotong University, Chongqing 400074, China
3 Guangxi Lujian Engineering Group Co., Ltd., Nanning 530001, China
4 Poly Changda Engineering Co., Ltd., Guangzhou 511430, China |
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Abstract Ultra-high performance concrete (UHPC) is currently a hot spot for domestic and foreign scholars, but there is no explicit specification for the UHPC mix ratio design. This papercomes up with a semi-empirical UHPC mix design based on theoretical analysis and experiment. Firstly, the cement sand specimen was prepared according to the mix ratio of the cementitious material in reference, and then 28 d compressive strength was measured. Secondly, using Matlab fitting toolbox to fit UHPC the quantitative relationship between preparation strength and water-binder ratio and cementitious material strength. Thirdly, fitting the relationship between the strength of cementitious material and the strength of cement sand through Mathematica. Fourthly, the water-binder ratio is determined by the fitting formula. Then according to the maximum density theory to determine the proportion of aggregate addition. Finally, the UHPC mix ratio is determined by the whole product calculation method. After that, the semi-empirical UHPC mix ratio design method is verified; we tested the compressive strength and flexural strength of 28 d under stea-ming conditions. The results show that the theoretical strength calculated according to the fitting formula is close to the compressive strength mea-sured in practice. The difference is within the error range of compressive strength measurement. The mix ratio design method has good reliability. And this method provides a new way for workers to design UHPC.
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Published: 09 December 2021
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| Fund:This work was financially supported by the Science and Technology Project of Guangdong Provincial Transportation Department (Science and Technology-2017-02-012), Graduate Research Innovation Project of Chongqing Jiaotong University (CYS20297). |
About author:: Yuzhu Yang, graduated from the School of Materials Science and Engineering of Chongqing Jiaotong University with a master's degree, is currently a Ph.D. student in the School of Civil and Architectural Engineering of Guangxi University, mainly engaged in the research of civil engineering materials.
Weirong Huang, professor of Chongqing Jiaotong University, is mainly engaged in the research and development of high performance asphalt mixture, high performance cement concrete, high quality pavement base material and pavement construction technology. More than 70 academic papers have been published in academic journals and conferences at home and abroad, and more than 30 scientific research projects at the national, provincial and ministerial levels and bureau le-vels have been presided over and studied. |
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1 Jones M R,Zheng L,Newands M D. Materials & Structures,2002,35 (5), 301.
2 Wang X,Wang K,Taylor P,et al. Construction & Building Materials, 2014,70, 439.
3 王海兵,刘咏,黄伯云,等. 粉末冶金技术, 2001,19(3), 208.
4 徐立斌, 董艺, 陈尚伟. 混凝土, 2015(1), 72.
5 胡翱翔, 梁兴文, 李东阳, 等. 湖南大学学报(自然科学版), 2018,45(3), 39.
6 张高展, 魏琦, 丁庆军, 等. 混凝土与水泥制品, 2020(1), 6.
7 袁明, 贺文杰, 颜东煌, 等. 中外公路, 2019,39(6), 169.
8 万朝均, 尹亚柳, 王小茜, 等. 硅酸盐通报, 2015,34(12), 3676.
9 孔德宇,姜绍杰,刘新伟,等. 水泥工程, 2017(1), 83.
10 肖江帆.常规工艺下超高性能混凝土的制备及性能研究. 硕士学位论文, 湖南大学, 2013.
11 丁庆军, 彭程,康琰, 等. 硅酸盐通报, 2019,38(2), 488.
12 王军委, 李秋义, 郭远新, 等. 混凝土, 2015(5), 34.
13 李传习,聂洁,潘仁胜,等. 硅酸盐通报, 2019,38(1),14.
14 高绪明. 钢纤维对超高性能混凝土性能影响的研究. 硕士学位论文, 湖南大学, 2013.
15 卢喆, 冯振刚, 姚冬冬, 等. 材料导报, 2020,34(S1), 203.
16 冯乃谦. 高性能与超高性能混凝土技术, 中国建筑工业出版社, 2015.
17 陈建奎, 王栋民. 硅酸盐学报, 2000(2), 103.
18 贾迪.超高性能混凝土搅拌引入气泡控制及其对强度的影响. 硕士学位论文, 哈尔滨工业大学,2017. |
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