Design and implementation of waterproof insulation in existing buildings is much more difficult task than in the new objects. In those situations, usually it is necessary to perform wall injection allows to eliminate or reduce the transport of capillary moisture, but this is a technology quite annoying for users of objects. In some cases alternative may be the injection of the ground around the building as a way to seal up diaphragm walls by the densification of ground from the outside. The article presents an assessment of low pressure injection of ultrafine clay materials as a way of injecting the ground.
Keywords: low pressure injection, ground injection, sealing up the ground, densification of ground.