The relationship between compressive strength and flexural strength of pavement geopolymer grouting material

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Zhang, L.^1,2 ; Han, X.X.^1 ; Ge, J.^3 ; Wang, C.H.^1

School of Highway, Chang'An University, Xian, Shaanxi

710064, China^1

Henan Transport Investment Group Co. Ltd., Henan

450052, China^2

Tianjin Municipal Engineering Design and Research Institute, Tianjin

300051, China^3

关键词: Abnormal values;    Correlation coefficient;    Curve modeling;    Grouting materials;    Linear fitting;    Linear relationships;    Mechanical properties test;    Regression model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012114/pdf
DOI  :  10.1088/1757-899X/292/1/012114

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To determine the relationship between compressive strength and flexural strength of pavement geopolymer grouting material, 20 groups of geopolymer grouting materials were prepared, the compressive strength and flexural strength were determined by mechanical properties test. On the basis of excluding the abnormal values through boxplot, the results show that, the compressive strength test results were normal, but there were two mild outliers in 7days flexural strength test. The compressive strength and flexural strength were linearly fitted by SPSS, six regression models were obtained by linear fitting of compressive strength and flexural strength. The linear relationship between compressive strength and flexural strength can be better expressed by the cubic curve model, and the correlation coefficient was 0.842.