Abstract:

A great amount of cement should be used when preparing traditional grouting material. As a result, a new kind of economical and environmental grouting material with good working performance should be developed. A new kind of cementwater glass doubleliquid grouting material with steel slag and ground slag is selected by comparison among different doubleliquid grouting materials in terms of working performance. And then the influences of content of steel slag and ground slag, the volume of water glass and the ratio of water to cement on the working performance, gelling properties and compressive strength of the prepared doubleliquid grouting material are studied. The study results show that the gelling time of the prepared grout can be controlled; the fluidity of the grout can reach above 300 mm and the compressive strength of the grout can reach above 13 MPa when the content of steel slag and ground slag reaches 60%, the volume of water glass reaches 20%-30% and the watercement ratio reaches 0.7-1.0. 

Key words: steel slag, ground slag, cement, water glass, doubleliquid grouting material