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| Experimental Research on the Improving Filling Materials with Lime for Argillaceous Sandstone Subgrade |
| CHEN Hua-lin |
| Hunan Transportation Engineering Professional College, Hengyang, Hunan 421001, China |
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Abstract Research purposes: Based on the example of improving the filling materials for the subgrade of Wuchang-Guangzhou Passenger Dedicated Railway, the chemical experiments are done on improving sandstone for the purpose of doing research on the feasibility of using sandstone as the filling materials for the subgrade of passenger dedicated railway.
Research conclusions: The improved sandstone is much better in property of physical mechanics, especially in mechanics strength and hydrological property, which can satisfy the requirements of railway subgrade for filling materials, so it is feasible to use calcined lime as the modified agent for all weathered and serious weathered sandstone.
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Received: 09 January 2008
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2008, Vol. 25 
