Study on Coal Tar-Phenolic Resin Complex Sand Consolidation Agent

The research indicates that the addition of coupling agent of organic silica to coal tar-phenolic resin complex sand consolidation agent can raise apparently temperature resistance and meantime reduce production cost. The addition of coal tar to complex sand consolidation agent is 15% and coupling agent is 0.5% by weight. The compression strength of consolidating body is above 4 MPa in 120℃,constant temperature for 7 days. The mechanism among coal tar , coupling agent and blinding agent is also discussed.