Frequently Asked Questions

Concrete Canvas^® (CC) is the original Geosynthetic Cementitious Composite Mat (GCCM) and the first product to declare conformance to ASTM D8364 ‘Standard Specification for GCCMs’. CC is a flexible, concrete filled geotextile that hardens on hydration to form a thin, durable and waterproof concrete layer. Essentially, it can be described as Concrete on a Roll^® and is used for a wide variety of applications including the rapid lining of slopes to provide surface erosion protection and weed suppression.

Note that CC will provide surface protection from external erosive forces such as from wind and rainfall.

It should be noted that CC replaces conventional concrete for erosion control applications. CC shall not be used to provide a stabilisation/ retention function.

Clean of vegetation including de-rooting and removal of sharp objects such as large stones and rocks >25mm. Grade to a uniform profile with all voids filled.

Anchor trenches are typically constructed at the Toe and Crest of slopes to provide a mechanical fixing restraining CC in the longitudinal direction.

For end terminations of slopes, anchor trench shall be a minimum of 200mm x 200mm.

CC can be cut using basic hand tools such as utility knives. Power tools such as disc cutters can also be used but will generate significant dust.

Spray the fibre surface multiple times until the CC is fully saturated. The wet CC will first darken and then become lighter as it absorbs the water.