›› 2007, Vol. 28 ›› Issue (5): 1005-1008.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental research on dynamic properties of fly ash soil subjected to freeze-thaw cycles

WEI Hai-bin1, 2, LIU Han-bing1, GAO Yi-ping1, FANG Ying3, LI Chang-yu1   

  1. 1. Transportation College, Jilin University, Changchun 130022, China; 2. Applied Technology College, Jilin University, Changchun 130022, China; 3. Center for testing, Jilin University, Changchun 130022, China
  • Received:2005-09-19 Online:2007-05-10 Published:2013-09-10

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Abstract: 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 for roadbed filling. The dynamic triaxial tests are made on the two kinds of soils after freeze-thaw cycles. The variation law between the dynamic strength and the number of cycles of dynamic loading and the number of freeze-thaw cycles is obtained. The relationship curves of the dynamic stress-strain and the dynamic elastic modulus-elastic strain and the curve of the dynamic modulus and the number of freeze-thaw cycles are also given. The research shows that the dynamic properties of fly ash soils(1:2) is better than silty clay subjected to freeze-thaw cycles. After 3 cycles of freezing and thawing, its dynamic strength and dynamic modulus reach stability. It has superiority as roadbed filling.

Key words: fly ash soils, freeze-thaw cycles, dynamic strength, dynamic modulus

CLC Number: 

  • TU 413.5
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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