Experimental Study on Frost Heave Properties of Cement-improved Soil
[1]BAO Jun-an,YANG Ping,WANG Xu-nuo.Experimental Study on Frost Heave Properties of Cement-improved Soil[J].Journal of Zhengzhou University (Engineering Science),2013,34(01):5-9.[doi:10.3969/j.issn.1671-6833.2013.01.002]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 01
Page number:
5-9
Column:
Public date:
2013-01-16
- Title:
- Experimental Study on Frost Heave Properties of Cement-improved Soil
- CLC:
- TU445
- Abstract:
- In order to reveal the law that the cement-improved soil controls frost heave,experimental researcbon frost heave properties were conducted with two typical soils in Nanjing region ,clay and sand,mixed withthe cement. The experiments show that: frost heave coefficient of clay or sand cement-improved soil declinesexponentially with mixing ratio of cement increasing,enhances linearly with moisture content increasing,de-clines exponentially with instar increasing,enhances linearly with the cold junetion temperature increasing, declines exponentially with load increasing besides there is an optimal mixing ratio,while it is the optimal mix-ing ratio,frost heave coefficient of cement-improved soil are lower,the optimal mixing ratio of clay and sandin Nanjing region is 10% and 5% . By comprehensive analysis,when using the freezing method,before freez-ing, a certain amount of cement can be mixed into the clay or sand, and it is necessary to place it for a periodof time,which can reduce frost heave and thaw subsidence,thus reducing the harm to engineering and the en-vironment.
- References:
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Last Update:
1900-01-01
