Special foundation engineering

Large-scale water ingress into excavation pits requires temporary waterproofing solutions that are rapid and economical so as not to jeopardize the progress of the works. The wide-ranging applications include sheet pile interlocks and joints in contiguous bored piling or diaphragm walling. Consolidating injections can provide a reliable waterproof barrier over the external surface of buried structures while at the same time obviating the need for cost-intensive and time-consuming excavations.

Dams/water engineering

Hydraulic structures generally feature very massive elements to accommodate the high water pressures to which they are usually exposed. The design of a suitable concrete mix for such applications is a perennial headache for engineers and concrete manufacturers.

The generally monolithic construction tends to facilitate rapid leak location. However, the necessary remedial works may sometimes prove very complex and costly. Indeed, underwater grouting has often proved necessary in the past.