Rawell’s distributors in Australia, Xypex in conjunction with civil construction contractors
JMB Industrial Services Pty Ltd, identified an opportunity for the use of its products to line a
sludge retention pit and waste water treatment pond for a gas refinery in the state of Victoria.

Stage one of the project required 3,600 sq m of Rawmat HDB Membrane to be installed (as a single layer system) to line a retention pit for temporary storage of material to allow for anaerobic decomposition prior to being removed as suitable landfill material.

Stage two of the project required 6000sq m of the membrane to be installed (as a single layer system) in an upgrade to the waste water treatment system at the plant. Installation was carried out by JMB Industrial Services, with a local geotechnical consultancy firm completing specification and design of the lining system as well as implementing onsite QA/QC.

Installation requires joints to be overlapped a minimum of 150mm; Rawpaste Mastic is applied to the joint, for total hydrocarbon containment. In this instance a 55/30 geogrid was then installed over the Rawmat HDB on the slopes as additional reinforcement prior to placing and compacting 300mm of sandy clay to complete the lining system. As this pit will be cleaned out periodically, an access ramp was installed with additional reinforcement to improve access for vehicles and machinery in and out of the pit.

Rawmat HDB is being utlized in a variety of other hydrocarbon based applications around the world. It is currently being installed as the secondary containment lining system by Exxon Mobil on the Parallel Train project at Jurong Island in Singapore. BP, Shell and Conoco Phillips also have projects using Rawmat HDB across Europe.

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Waterproofing Membranes - Control harmful liquids & prevent ground contaminations with Rawmat Pre-Hydrated Geo-Synthetic Bentonite Lining Membranes.

Rawell is one of the world's leading suppliers of bentonite-based waterproofing materials, including Geosynthetic Clay Liners and Waterstops.

The RAWMAT® HDB membranes and RAWSEAL® waterstops are unique in that they are the only bentonite products that are non-granular, pre-hydrated and manufactured by vacuum extrusion.

Rawell HDB membranes and Waterstops are suitable for a variety of structural, environmental and landscaping applications.

Rawmat HDB Membranes & Rawseal Waterstops
	The RAWMAT® High Density Bentonite (HDB) membranes and RAWSEAL® waterstops are unique in that they are the only bentonite products that are non-granular, pre-hydrated and manufactured by vacuum extrusion, a process which Rawell patented in the early 1990’s.
	The central core of natural sodium bentonite is already an impermeable barrier and does not require liquid to be added on site. Rawell has since the inception of the pre-hydrated range of products, carried out extensive testing on its products to support its use in a wide variety of aggressive conditions. These tests are both ongoing and long term and carried out in independent laboratories around the world.
Rawell products are suited to a variety of projects
	• Water Courses • Golf Courses • Brownfield Sites • Tank Farms • Landfill Basal Lining • Landfill Capping • Landfill Test Fields • Trench Lining • Transformer Bunding • Reed Beds • Filling Stations • Mining Applications