›› 2009, Vol. 30 ›› Issue (12): 3803-3807.

• Geotechnical Engineering • Previous Articles     Next Articles

Correlation of microstructure indices and performance of sand solidified with polymer material SH

HE Fa-guo1, 2, CHEN Wen-wu1, 2, HAN Wen-feng2, 3, ZHANG Jing-ke1, 2   

  1. 1. Key Laboratory of Mechanics on Western Disaster and Environment, Lanzhou 730000, China; 2. School of Mechanics and Civil Engineering, Lanzhou University, Lanzhou 730000, China; 3. Tianjin Institute of Urban Construction, Tianjin 300384, China
  • Received:2009-03-25 Online:2009-12-10 Published:2010-01-18

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Abstract:

Organic polymer material SH, as an economical and environmentally solidified material, possesses useful properties in control of desert. Sand with different densities is solidified by SH material of different consistencies with different means of reinforcement. After being solidified, microstructure of the sand will be changed; and accordingly the mechanical property will change also. Graphics manipulation has been used to count and analyze the stereoscan photographs of solidified sand. Multivariate stepwise regression method has been used to calculate the correlation of microstructure indices and the mechanical property, and analyze and evaluate them. The result shows that there exists good correlation between the mechanical property and microstructure indices of sand after solidified by SH material. Anisotropy, equivalent diameter, aspect ratio, fill ratio and ratio are the five significant indices effecting on the mechanical property of sand with SH. It is shown that SH is an ideal polymeric soil consolidator in terms of microstructure.

Key words: polymer material, reinforcement property, microstructure indices, correlation, multivariate stepwise regression method

CLC Number: 

  • TU 411
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