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| Mineral composition and anti-erodibility of Pisha sandstone |
| Li Changming 1,2, Song Lisha 3, Wang Lijiu 1,2 |
| 1.School of Civil Engineering, Dalian University of Technology, 116024, Dalian, Liaoning, China; 2.Key Laboratory of Loess Plateau Soil and Water Loss Process and Control, Ministry of Water Resources, Materials Engineering Research Laboratory, Dalian University of Technology, 116024, Dalian, Liaoning, China;3.Henan Technical College of Construction,450064,Zhengzhou,China |
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Abstract Pisha sandstone is a specific mudstone/ sandstone, and is the main resource of Yellow River coarse sand. Through the experiment, the water resistance of Pisha sandstone was observed, and the compressive strength, particle size distribution, maximum dry density and other physical indexes of Pisha sandstone were tested. XRD, SEM and optical microscope observations were used to analyze the mineral composition, chemical composition and microstructure of Pisha sandstone, respectively. The results showed that, the mechanical strength was between 0.4 and 2.8 MPa. Quartz, feldspar and hematite were the main mineral composition. And the silicon dioxide, aluminium oxide, and calcium oxide were the main oxide composition. The microstructure observations indicated that the Pisha sandstone had a bad pore structure, and the carbonate and clay were the main cementing materials.
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Received: 08 June 2014
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