Statistical Characteristics and Correlation Analysis for Control Index of Soil-Aggregate Mixture

Abstract:

Currently, the soil-aggregate mixture has been widely used in some large-scale site preparation projects, compaction characteristics has been pay more attention by many engineers and researchers. However, systematic research is insufficient on how to choose the filler. Moreover, some industry regulations are different on the requirements about filler. This paper relies on a certain big site preparation projects, discussing statistical characteristics and correlation on the maximal grain size, contents of the coarse grain, gradation and other parameters of soil-aggregate mixture. The results show that the maximal and the median grain size have small discreteness and normal distribution, indicating site filler is easy to reach the requirement; The coefficient of curvature, coefficient of nonuniformity and the coarse grain content have large discreteness, and dont obey normal distribution, indicating the filler has large variability. The median grain size is highly relevant to the coarse grain content; the maximal grain size isnt relevant to the coefficient of nonuniformity, the coefficient of curvature and the coarse grain content. According to the results of correlation analysis, we suggest that the importance order follow by coarse grain content, the maximum grain size and gradation for the control parameters of filler. This research may be significant to other similar projects.

• Periodical: Advanced Materials Research (Volumes 718-720)
• Pages: 1872-1877
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.718-720.1872
• Online since: July 2013
• Authors: Xu Xi Chang, Xie Jian Ming, Jiang Ling Fa, Chen Shan Xiong
• Keywords: Control Index, Correlation Analysis, Filler, Soil-Aggregate Mixture, Statistical Characteristics

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