Concrete Canvas, commercially referred to as CC-5, is a factory-made concrete-impregnated fabric that sets into a thin, hard-wearing concrete layer once it comes into contact with water. Supplied in a flexible, roll-out form, this 5 mm thick lining material is purpose-built for earthen drains where a fast, low-maintenance, and structurally sound lining is required without the delays associated with conventional cast-in-place concrete work.

This page covers the complete scope of manufacturing, supply, fixing, and supervision of Concrete Canvas CC-5 for earthen drain lining, along with the technical specification, installation sequence, and commonly asked questions relevant to procurement and execution teams.

What Is Concrete Canvas CC-5?

Concrete Canvas is a geosynthetic building material, essentially a cement-filled fabric roll that behaves like a flexible textile until it is hydrated. Once water is applied, the embedded cementitious layer cures and hardens into a thin concrete layer that follows the exact contour of the ground it was laid on. The CC-5 designation refers to a nominal 5 mm thickness variant, sized specifically for lighter-duty lining applications such as earthen drain channels, where a full 9 mm or thicker mat is not warranted.

Because the material arrives pre-manufactured and only needs to be unrolled, fixed, and hydrated on site, it removes the need for shuttering, batching, and multi-day curing cycles typically associated with poured concrete drain lining.

Scope of Work

The scope covers manufacturing, providing, and fixing of concrete canvas, i.e., concrete impregnated fabric CC-5, or an equivalent product, of 5 mm nominal thickness, used for lining of earthen drains. The job is executed as a complete, single-responsibility scope meaning the contractor supplies the material, transports it to the site, installs it, and supervises the work through to final acceptance by the Engineer-in-Charge.

The exact clause governing this work, as issued, reads as follows:

Manufacturing, providing and fixing concrete convas i.e concrete impregnated fabric CC-5 or similar with 5 mm thickness for lining for earthen drain. The concrete convas i.e concrete impregnated fabric CC 5 as per specification must be laid in proper way with all required fixtures and fastenings as complete job as instruction and satisfaction of Engineer-in- charge with contractors own materials, labour, tools, lead, lift, T&P Jetc.The cost includes cost of materials, transportation, installation, fixing pegging, curing, pre- installation, preparation works, supervision, petty works Involved, taxes, GST etc. as a complete job. Nothing will be paid extra. NOTE: Overlapping of 100 mm will be provided between two consecutive CC patches. The overlap quantity will be taken for measurement. (Quality Confirming to- ASTM D8364/D8364M 21 and adhering all strength, material specification and testings)(Details as per special condition of contract)…

As set out above, no separate or additional payment is admissible for any incidental activity connected with the work; the quoted rate is treated as a fully inclusive, all-in rate covering material, labour, tools, and finishing.

Application Areas

CC-5 concrete canvas is intended for use in earthen drains where a durable but thin lining is needed to control seepage, prevent erosion of the drain bed and sides, and extend the service life of the channel. Typical locations include:

  • Earthen side drains along road and rail formations
  • Field and irrigation channel linings
  • Minor catch drains and cross-drainage paths
  • Embankment toe drains are subject to periodic flow

Its flexibility allows it to conform to irregular drain profiles without the joint and shrinkage-crack issues common to in-situ concrete linings.

Technical Specification

The concrete canvas CC-5 product supplied for this work is required to meet the following parameters, and quality is required to conform to ASTM D8364/D8364M-21 along with adherence to all associated strength, material, and testing requirements:

  • Thickness: 5 mm nominal (CC-5 grade or equivalent)
  • Form: Flexible concrete impregnated fabric, hydration-activated
  • End state: Hardens into a thin, continuous concrete layer on contact with water
  • Overlap: 100 mm overlap between consecutive CC patches, measured for payment
  • Fixing: Fastened with pegs, anchors, and fixtures as per the manufacturer’s methodology and site instructions
  • Standard: ASTM D8364/D8364M-21, including all associated strength and material testing clauses
  • Certification: Product literature and test certificates are to be submitted for approval before procurement

Any equivalent product proposed in place of CC-5 must be demonstrated to meet or exceed these parameters, subject to acceptance by the Engineer-in-Charge.

What the Quoted Rate Includes

Because this is structured as a complete, no-extra-payment job, the quoted rate for CC-5 lining work is inclusive of:

  • Manufacturing and supply of the concrete canvas material
  • Transportation to the site, including all lead and lift
  • Pre-installation surface preparation works
  • Fixing, pegging, and anchoring of the material
  • Curing after hydration
  • Supervision through completion
  • Petty and incidental works connected with the job
  • Applicable taxes and GST

Nothing beyond the quoted rate is paid separately, including for overlap material, which is accounted for through overlap-quantity measurement rather than a separate cost head.

Installation Methodology

While exact site methodology should always follow the approved drawings and manufacturer’s product literature, the general sequence for laying concrete canvas CC-5 in an earthen drain is as follows:

1. Surface Preparation

  • Clear the drain bed and sides of debris, vegetation, and loose material
  • Profile the earthen surface to the required drain cross-section
  • Remove sharp protrusions or stones that could puncture the fabric
  • Carry out minor excavation or dressing where the alignment requires correction

2. Laying the Concrete Canvas

  • Unroll the CC-5 material along the prepared drain alignment
  • Position each length so that it follows the bed and side slope profile closely
  • Maintain a 100 mm overlap between each consecutive patch of material
  • Avoid folds, wrinkles, or air gaps that could weaken the finished lining

3. Fixing and Anchoring

  • Peg and anchor the material at the edges and overlaps as per the approved fixing pattern
  • Use fixtures and fastenings appropriate to the soil type and drain gradient
  • Ensure the material is held firmly in place before hydration begins

4. Hydration

  • Apply water evenly across the laid material as per the manufacturer’s recommended hydration procedure
  • Allow the cementitious layer within the fabric to activate and begin curing
  • Avoid disturbing the material during the initial set

5. Curing and Protection

  • Protect the hydrated surface from traffic, debris, and disturbance during the curing period
  • Allow the material to fully harden into a continuous concrete-like lining

6. Finishing and Inspection

  • Dress the edges and any exposed overlaps neatly
  • Carry out backfilling at the drain edges where specified
  • Present the completed section for inspection and acceptance by the Engineer-in-Charge

Quality Assurance and Compliance

All CC-5 material supplied under this scope is required to conform to ASTM D8364/D8364M-21, with strength, thickness, and durability characteristics verified through manufacturer test certificates. Installation is expected to strictly follow the approved drawings, product literature, and any special conditions of contract issued for the project. As with the broader family of concrete-impregnated fabric products, the finished lining is only as reliable as the surface preparation and fixing carried out beneath it, so pre-installation checks matter as much as the hydration step itself.

Why Choose Concrete Canvas CC-5 for Earthen Drains

Earthen drains are prone to erosion, seepage loss, and gradual profile deformation over time, particularly during monsoon flows. Lining them with cast-in-place concrete is slow, labour-intensive, and requires curing time that can hold up other site activities. CC-5 offers a lighter-weight alternative suited to drains that do not carry the heavier structural loads of catch water or line drains but still need a durable, low-maintenance surface.

For catch water and line drains requiring a thicker, higher-strength lining, see our Geosynthetic Cementitious Composite Mat (GCCM) page.

Key advantages include:

  • Faster execution compared to conventional in-situ concrete lining
  • Conformity to irregular drain profiles without joints or formwork
  • Reduced long-term maintenance due to the hardened concrete surface
  • Simplified site logistics, since no batching plant or shuttering is required
  • Consistent quality, since the cementitious content is factory-controlled rather than site-mixed

Frequently Asked Questions

What is Concrete Canvas CC-5?

It is a concrete-impregnated fabric, roughly 5 mm thick, that hardens into a durable concrete layer once hydrated, used for lining earthen drains and similar channels.

Where is CC-5 typically used?

It is used for lining earthen drains, including road and rail side drains, field and irrigation channels, and embankment toe drains.

Is overlap required between rolls of material?

Yes. A 100 mm overlap is required between two consecutive CC patches, and this overlap quantity is measured for payment.

What standard governs the quality of CC-5?

The material and installation must conform to ASTM D8364/D8364M-21, along with the associated strength, material, and testing requirements.

Does the quoted rate cover transportation and taxes?

Yes. The rate is inclusive of material, transportation, installation, fixing, pegging, curing, preparation, supervision, petty works, and applicable taxes and GST, with nothing paid extra.

Can an equivalent product be used instead of CC-5?

Yes, provided the alternative product meets or exceeds the specified thickness, strength, and testing requirements and is accepted by the Engineer-in-Charge.

How is the material fixed in place before hydration?

It is fixed using pegs, anchors, and fastenings appropriate to the drain profile and soil conditions, following the approved methodology, before the hydration and curing stage begins.

Conclusion

Concrete Canvas CC-5 offers a practical, factory-manufactured solution for lining earthen drains where speed of installation and long-term durability matter more than the heavier specification demanded by major drainage structures. Supplied, fixed, and cured as a complete job with quality tied to ASTM D8364/D8364M-21 and proper overlap and fixing practices, it gives project teams a dependable way to control erosion and seepage in earthen channels without the delays of traditional concrete lining work.