Concrete canvas, also known as concrete cloth, is a flexible, concrete-impregnated fabric that hardens upon hydration to create a durable and waterproof layer, eliminating the need for traditional concrete installation equipment. It is increasingly used for slope protection and channel lining due to its rapid installation capabilities and cost-effectiveness compared to non-structural shotcrete. The material is available in three thicknesses and has specific handling requirements to ensure optimal setting and strength.

1. Concrete Canvas – Surface & Slope Protection Works
S.Sudha Velan B.E (Civil)

2. Concrete Canvas
• Known as Concrete Cloth.
• Flexible, concrete-impregnated fabric that hardens on
hydration to form a thin, durable, waterproof and fire-resistant
concrete layer.
• Basically, it is concrete cloth on a roll.
• GCCM (geosynthetic composite cementitious mat)

7. FUNCTION
• Concrete Canvas , allows concrete construction without the need for plant
or mixing equipment.
• Simply unroll and position Concrete Canvas, and then just add water.
• Concrete Canvas has no impact on the pH of runoff water.
• Concrete Canvas is widely used as a cheaper alternative to non-structural
shotcrete.
• Concrete Canvas is available in 3 thicknesses: 5, 8 and 13mm thick.

8. APPLICATIONS
Slope Protection
• Concrete Canvas is increasingly being used as an alternative to non-structural
shotcrete to protect slopes from surface erosion caused by weathering, surface
run-off and environmental degradation.

11. Channel Lining
• Concrete Canvas is rapidly becoming the ditch lining material of choice for
engineers and contractors around the world. Concrete Canvas is typically
10 times faster to install than conventional concrete solutions, with
installation speeds of up to 200 m2/hr possible with only a three-man crew
for a longitudinal layup.

13. Bund Lining

15. Outfalls
• Concrete Canvas has been
used worldwide as an
effective method of
preventing surface erosion
and scour associated with
water run-off from culverts
outlets, spillways and over-
toppings.

28. Physical Properties of Concrete Canvas
Product
Thickness
(mm)
Batch Roll
Size (sqm)
Bulk Roll
Size (sqm)
Roll
Width
(m)
Mass
(unset)
(kg/m2)
Density
(unset)
(kg/m3)
Density
(set)
(kg/m3)
5 10 200 1.0 7 1500 +30-35%
8 5 125 1.1 12 1500 +30-35%
13 N/A 80 1.1 19 1500 +30-35%

29. Do’s & Don’ts
• Concrete Canvas cannot be over hydrated and therefore an excess of water is
always recommended. Minimum ratio of water: Concrete Canvas is 1:2 by weight.
• Do not jet high pressure water directly onto the matting as this may wash a channel
in the material.
• Concrete Canvas has a working time of 1-2 hours after hydration. Do not move the
material once it has begun to set.
• Concrete Canvas will set hard in 24 hours but will continue to gain strength for years
• If Concrete Canvas is not fully saturated, the set may be delayed, and strength
reduced. If the set is delayed, re-wet with a large excess of water.

30. S.
No.
Product Prices in
Rs.(per sqm)
1- Concrete Canvas 5 mm, Batch roll size -10 sqm,
Bulk rool size-200 sqm. Roll width- 1meter
3,400/-
2- Concrete Canvas 8 mm, Batch roll size - 05 sqm,
Bulk rool size-125 sqm. Roll width- 1.1 meter
4,890/-
3- Concrete Canvas 13 mm, Batch roll size –N/A,
Bulk roll size-80 sqm. Roll width- 1.1 meter
6,990/-

33. Thanks & Regards
S.Sudha Velan