APPLICATION OF SELF-IGNITED COAL GANGUE HAYDITE CONCRETE IN SHOTCRETE

The coal gangue is waste material that produced in coal mining. It occupied a great lot of farmlands. It also pollute ecological environment. The chemical constitution and physical property of coal gangue was analysed. Based on this, the compressive strength of coal gangue concrete was measured. The check experiment was carry out in practical engineering. The result of experiment showed that the self-ignited coal gangue concret can meet the designed require. This technology can reduce the supported coast of sinking and driving engineering. It is nice in economy and social benefit.