Compaction grouting is the most common technique selected for sinkhole stabilization. Compaction grout is composed of common Portland cement, water and sand, and is pumped into the soils below a home through pre-placed pipes. The compaction grouting program is designed and monitored by a geotechnical engineering company. Source: @haywardbaker Follow us! @engineeringandarchitecture . . . #compaction #grouting #sinkhole #stabilization #portland #cement #structuralengineering #soil #pipes #geotechn