Jet Grouting Whitepaper

Full Description

Grouting of soil bodies for strength improvement and/or sealing is a standard method in geotechnical engineering.
Low pressure injection grouting with solid particle suspensions, chemical solutions or artificial epoxy resins has been in use for some time. It is restricted to soils with certain void ratios and pore sizes. Conventional low pressure grouting uses pressures up to 20 bar to inject grout into the naturally existing pores and voids of a soil. Apart from displacing air or water in pores and voids with grout, the structure and fabric of the soil remains unchanged. The resulting grout body in the ground is an undefined random structure. Conventionally, fine grained soils can only be grouted with chemical solutions or artificial resins, which increasingly raises environmental concerns.