It has wide distributions and large recoverable reserves of Jurassic period coal seam in China.It is difficult to maintain stability of the development roadways with long service term for Jurassic strata because there are abundant argillaceous rocks and some minerals in the high argillaceous rocks will be expanding while meeting with water.The fractures of the roadways develop well under high stress and are suitable to filling with grouting.But the poor cementing performance of cement with argillaceous rock as well as a heavy water filtration rate of cement slurry had resulted in failures of many engineering cases adopting cement grouting to reinforce this kind of roadways In this paper, according to characters of the high argillaceous rock in Jurassic strata, a marlaceous inorganic grouting material which possesses the well cementing performance with argillaceous rocks and little filtration rate was introduced;and the grouting reinforcement mechanism, construction technique and engineering application effect about it was clarified.It will be of great significance for reinforcement and maintenance of the development roadways with high argillaceous rocks.
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