Triaxial tests on composite material from easy liquefaction fly ash and easy freezing silty clay according to dry weight (1:2) are conducted to investigate the dynamic properties of fly ash soils and silty clay for roadbed filling. Although variable confining pressure dynamic triaxial tests are made on the two kinds of soils after freeze-thaw cycles. The authors obtain the variety law between the dynamic strength and the number of circular of dynamic load and the number of freeze-thaw cycles. Test results show the relationship curves of the dynamic stress-strain and the dynamic elastic modulus-elastic strain, the dynamic modulus and the number of freeze-thaw cycles. The results of investigation show that the dynamic properties of fly ash soils(1:2) is better than silty clay after 3 freeze-thaw cycles, its dynamic strength and dynamic modulus reach stability. Based on.the evidence, it is concluded that the fly ash soils have superiority as roadbed filling in season regions.
Experimental Research on Dynamic Properties of Fly Ash Soil and Silty Clay after Freeze-Thaw Cycling
First International Conference on Transportation Engineering ; 2007 ; Southwest Jiaotong University, Chengdu, China
2007-07-09
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Experimental Research on Dynamic Properties of Fly Ash Soil and Silty Clay after Freeze-Thaw Cycling
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