The RIX Group has seen the introduction of spray-on membranes in the rehabilitation of sites polluted by petrochemicals and in the stabilisation of slopes and embankments. Advantages of this technology include:
- Cold spray applied membrane
- Excellent sealing of penetrations
- Seamless monolithic membrane
- Withstand stresses associated with strata movement
- Provides a barrier to weathering
- High tensile strength
- Rapid and simplified installation
RIX is a manufacturer-accredited applicator and one of Australia’s leading applicators.
Above: Geology type, fast application time and colouring the surrounding shotcrete to match the existing rock were the key factors that saw the selection of a spray-on membrane for a main motorway south of Sydney, Australia. A visit to the site many years after the project’s completion had some interesting results: Paved areas under the membrane were completely free of rock debris unlike other areas that were not treated. The membrane did its job beyond expectation.
Left: An up-close latex membrane performing a stabilisation role. The latex membrane fastens any loose rock into place. With its high tensile strength, the membrane can resist the expansion and contraction cycle that accompanies heat and movement variation.
Right: This photo shows a spray on membrane for a non-stabilisation role. The site is a former Petroleum Fuel Depot and the soil is contaminated with toxic petroleum hydrocarbon gases. This membrane was applied to all below ground shotcrete walls and the basement floor. The membrane was then sandwiched between a secondary layer of final shotcrete to simulate a rendered wall. RIX worked with the client to design a shotcrete wall method to prevent toxic gases from migrating into the basement.