Since its first use over 150 years ago, the practice of injecting cementitious grout into voids in stonework or soil has developed into a technique with many wide uses. In civil engineering today this technique is used to...
1. Strengthen defective structural masonry and arch bridges
2. Consolidate or reduce water seepage through a mass of rock
3. Increase bearing capacity or reduce settlement in granular soils
4. Construct a watertight curtain or cut-off in a permeable stratum, e.g. around a reservoir or below a dam structure
5. Underpin defective foundations of existing structures showing excessive settlement
6. Fill cavity walls of existing buildings to provide a fire break