Abstract
A novel guar gum/poly(acrylic acid)/loess (GG-g-PAA/loess) organic-inorganic composite used as chemical sand-fixing agent (CSFA) is successfully prepared in aqueous solution by polymerization guar gum (GG), neutralized acrylic acid (AA) and loess. The correlations between the content of prepared composite and the sand-fixing properties are investigated. The results show that the CSFA can significantly improve the compressive strength of the sand fixation specimens. Meanwhile, the sand fixation specimens have good thermal, freeze-thaw and UV-radiation aging stabilities to withstand the changes in temperature and strong UV radiation. Besides, the specimens treated with sand-fixing agent shows excellent water retention capacity.
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