Optimal design of low shrinkage cementitious materials with equal mortar strength

被引：1
作者：
Zhou, Ning [1 ]
Qian, Chunxiang [1 ]
He, Zhihai [2 ]
机构：
[1] School of Materials Science and Engineering, Southeast University, Nanjing
[2] College of Civil Engineering, Shaoxing University, Shaoxing
来源：
Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2015年 / 45卷 / 02期
关键词：
Correlation; GM(1; N); model; Grey theory; Shrinkage;
D O I：
10.3969/j.issn.1001-0505.2015.02.033
中图分类号：
学科分类号：
摘要：
In order to quickly optimize the design of low shrinkage cementitious materials, the mortar which has the similar strength was prepared according to different cementitious materials. Based on the gray system theory, the mortar shrinkage GM (1, N) model which selected the factors associated greatly with mortar shrinkage was established. The results show that the volume ratio between C-S-H and unhydrated particle, the deformation resistance factor and the mortar strength have greater correlation with mortar shrinkage, and the correlation factors are 0.759, -0.678 and-0.631, respectively. The mortar shrinkage GM (1, 4) model has high simulation accuracy and good reliability. The average relative error is 8.96% and the overall relative error is less than about 15%. The main influence factors of the model are obtained easily and the test method is simple and workable with less tedious trial. ©, 2015, Southeast University. All right reserved.
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页码：387 / 392
页数：5
相关论文
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