高活性粉煤灰注浆材料的防渗特性及在帷幕灌浆工程中的应用

高活性粉煤灰注浆材料与普通水泥注浆相比较 ,具有颗粒细、渗透性好、结石率高、强度可靠、耐久性好、成本低等优点 ,适用于岩土工程的防渗加固处理。实践证明 ,高活性粉煤灰注浆材料用于水库大坝的帷幕灌浆有较好的防渗抗渗效果 ,能显著提高坝基的防渗质量 ,是一种较为理想的防渗注浆材料。

Anti-leakageProperties of Highly Active Fly Ash Grout and Its Use in C u rtain Grouting

The highly active fly ash grout provides such advantages as fine grain, good permeability, reliable strength, durability, low cost, compared with common cement grout. The field practice has proved that the highly active fly ash grout can achieve good anti leakage effect and improve obviously the anti leakage quality of the dam foundation when used in water reservoir dam curtain grouting; therefore, it is an ideal anti leakage grout.