S. Kuldasheva, I. Ahmadjonov, N. Adizova, I. Eshmetov, K. Akbarov
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Fixing mobile desert sands: definition of water resistance, mechanical strength and mechanism of fixing
The possibility of the formation of a water-resistant structures in dispersions of saline soils by using a composition of additives combining a surfactant and a fixing agent, generally providing the effect of dispersed hardening, is considered. The data by investigation of method of fixing the sands of the Surkhandarya region with complex additives obtained on the basis of the waste of the Kungrad soda plant are presented. It is shown that the basis of the proposed method of fixing saline soils with complex additives is the process of converting their surface layers (up to 5 cm) from free-dispersed state to coherent-dispersed state by forming a structures (crust) consisting of water-resistant macroaggregates > 1.0 mm with mechanical strength up to 3.0MPa.
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