The goal of the Compaction Grouting Consensus Guide is to promote good practice in compaction grouting. Compaction grouting is a ground improvement technique that increases the density, strength and stiffness of the ground through slow, controlled injections of low-mobility grout that compacts the soil as the grout mass expands. Compaction grouting can be applied equally well above or below the water table. The technology can be applied to a wide range of soils, in most cases being used to improve the engineering properties of loose fills and native soils that are coarser than sandy silts. This guide covers both the practical and engineering aspects of compaction grouting and is essential reading for anyone interested in specifying, designing, and/or undertaking compaction grouting.