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材料导报  2021, Vol. 35 Issue (z2): 188-193    
  无机非金属及其复合材料 |
基于半经验的UHPC配合比设计方法
杨玉柱1,2, 黄维蓉1,2, 耿嘉庆3, 崔通4, 晏茂豪2
1 重庆交通大学材料科学与工程学院,重庆 400074
2 重庆交通大学交通土建工程材料国家地方联合工程实验室,重庆 400074
3 广西路建工程集团有限公司,南宁 530001
4 保利长大工程有限公司,广州 511430
UHPC Mix Design Method Based on Semi-quantitative
YANG Yuzhu1,2, HUANG Weirong1,2, GENG Jiaqing3, CUI Tong4, YAN Maohao2
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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摘要 超高性能混凝土(UHPC)是国内外学者当下关注的热点,但对于UHPC配合比设计目前没有明确的规范。采用理论分析和试验相结合的方法提出一种基于半经验的UHPC配合比设计,首先按照参考文献胶凝材料配合比配制胶砂试件并测出其28 d抗压强度,其次使用Matlab拟合工具箱拟合UHPC 28 d抗压强度与水胶比、胶凝材料28 d强度的定量关系;再采用Mathematica拟合胶凝材料强度与水泥胶砂强度的关系,通过拟合公式确定水胶比,依据最大密实理论确定骨料的掺加比例,最后通过全体积计算方法确定UHPC配合比。在这之后对基于半经验的UHPC配合比设计方法进行了验证,测试了蒸养条件下的抗压强度与抗折强度。结果表明:根据拟合公式计算的理论配制强度与实际测试的抗压强度接近,其差值在抗压强度测量误差范围内,该配合比设计方法具有较好的可靠性,此方法为广大工作者设计UHPC提供了一种新思路。
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杨玉柱
黄维蓉
耿嘉庆
崔通
晏茂豪
关键词:  半经验  超高性能混凝土  配合比设计  抗压强度    
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.
Key words:  semi-quantitative    ultra-high performance concrete    mix design    compressive strength
                    发布日期:  2021-12-09
ZTFLH:  TU528.57  
基金资助: 广东省交通运输厅科技项目(科技-2017-02-012);重庆交通大学研究生科研创新项目(CYS20297)
通讯作者:  hwr228@163.com   
作者简介:  杨玉柱,硕士毕业于重庆交通大学材料科学与工程学院,目前为广西大学土木建筑工程学院博士研究生,主要从事土木工程材料领域的研究。
黄维蓉,重庆交通大学教授,主要从事高性能沥青混合料、高性能水泥混凝土、优质路面基层材料等研究与开发及路面施工技术研究工作。先后在国内外学术期刊及会议上发表学术论文70余篇,主持和主研国家级、省部级和厅局级科研项目30余项。
引用本文:    
杨玉柱, 黄维蓉, 耿嘉庆, 崔通, 晏茂豪. 基于半经验的UHPC配合比设计方法[J]. 材料导报, 2021, 35(z2): 188-193.
YANG Yuzhu, HUANG Weirong, GENG Jiaqing, CUI Tong, YAN Maohao. UHPC Mix Design Method Based on Semi-quantitative. Materials Reports, 2021, 35(z2): 188-193.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2021/V35/Iz2/188
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