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Study of Expansive Soil Improved by Cationic Additive(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2007年03期
Page:
61-64
Research Field:
Publishing date:
2007-09-20

Info

Title:
Study of Expansive Soil Improved by Cationic Additive
Author(s):
HUI Hui-qing1;  ZHANG Sheng-lu2
1. School of Science, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Department of Building, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
expansive soil;  cationic additive;  water-stability;  soil strength
PACS:
TU443
DOI:
-
Abstract:
According to the electric charge distributing the soil particle surface and the mechanism of swelling-shrinking of expansive soil, one kind of cationic additive was synthesized by the author. Adding it to expansive soil, maintaining these specimens made of expansive soil improved by cationic additive, the specimenswere submerged under water in one container; no lateral constrain compression and simple shear test were carried out. Test results indicate that stable and strength of expansive soil improved by chemicals after submerged are better and greater than those of pure expansive soil respectively. From the properties of the additive, the cationic additive contributes to increasing water-stability of the expansive greatly, and does not to that of strength. With the development of maintaining the soil specimen, the cationic additive affecting on expansive soil shows function evidently. The results from tests are useful to engineering practice.

References:

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Memo

Memo:
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Last Update: 2007-09-20