IS 4999 : 1991 Recommendations for grouting of pervious soils

1 Scope

1.1 This standard gives recommendations for grouting of pervioussoils for control of seepage. These are applicable wherever theprimary purpose of grouting is to reduce the permeability of thesoil. In such cases, consolidation of the soil would be asubsidiary objective.

1.2 After the width and depth of the curtain is decided ascontained in IS 11293 : Part 1 : 1985 or any other relevant IndianStandard, it is necessary to choose the equipment, materials andfield techniques so that the desired impermeabilization can beachieved with reasonable assurance. The principal objective ofthese recommendations is to set out the basic considerationsgoverning choice of grout materials, equipment and fieldprocedures.

2 References

IS 1892 :1979Code of practice for subsurface investigationsfor foundations

IS 2132 :1986Code of practice for thin walled tube samplingof soils

IS 4453 :1980Code of practice for subsurface exploration bypits, trenches, drifts and shafts

IS 5529 : Part 1 :1985 Code of practice for in situpermeability test:Part 1 Tests in overburden

IS 11293 : Part 1 :1985 Guidelines for the design of groutcurtains:Part 1 Earth and rockfill dams

IS 12584 :1989Specification for bentonite for grouting incivil engineering works