Shotcrete - Gas Vapour Intrusion Protection Pt1

RIX recently took part in a project to rehabilitate a site that previously contained a service station. This site presented some interesting challenges as the soil was severely contaminated with Hydrocarbons. RIX partnered with the client in designing a solution that employed shotcrete and a gas vapour membrane to protect end users of the structure from any intrusion of toxic gases contained in the contaminated soil.

Seen here in this picture is the smooth (trowel finish) blinding layer of shotcrete. The gas vapour membrane will be applied to this smooth shotcrete surface and then sandwiched between the final layer of shotcrete which will form the walls of the underground carpark.