在水利水电工程大坝基础防渗、加固处理中,大多采用普通水泥灌浆,但对于具有微细裂隙的基岩或细砂层地基,由于普通水泥的颗粒较粗、可灌性差,不得不采用化学灌浆处理。而化学浆材成本高,灌浆工艺复杂,并存在毒性和环境污染等问题。为此,国内外一些研究和生产部门开发了干磨超细水泥和湿磨超细水泥及其灌浆技术。由原水电部地质勘探基础处 In the water conservancy and hydropower dam foundation seepage prevention and reinforcement treatment, most of the ordinary cement grouting, but for the bedrock or fine sand layer with fine cracks in the ground, due to ordinary cement coarse particles, poor irrigation, had to use chemical Grout treatment. The high cost of chemical pulp, grouting process is complex, and there are toxicity and environmental pollution and other issues. To this end, some research and production departments at home and abroad have developed dry-grinding ultrafine cement and wet grinding ultrafine cement and their grouting technology. From the original Department of Hydropower Geological Exploration Foundation