Remediation

Concrete Cloth™ (CC) Geosynthetic Composite Cementitious Mat can be used to efficiently and cost-effectively repair existing structures suffering from degradation. CC provides a remediation solution which is fast, easy and cost effective to install.

Concrete Cloth is perfect for both long-term and short term service life projects. In wear testing, experts estimated the lifespan of Concrete Cloth at 50 years. In shorter term projects Concrete Cloth is easily dismantled and removed due to Concrete Cloth's significant material savings. Up to 150 mm of poured concrete to be replaced with just 8 mm for many surfacing applications. The means that material savings of 95% can be achieved for a typical construction project.

Save time and money, not to mention resources, by repairing rather than replacing! Concrete Cloth provides the solution that you are looking for in a range of applications.


Remediation

In July 2011, Concrete Cloth™ (CC) GCCM* was chosen for the surface recovery of a corroded concrete acid tank containing 17% concentrated sulphuric acid. Completed installation provided a renewed solid surface on which to install a new HDPE lining. Project completed in 8 hrs using 4 men, compared to 21 days which would have been required to construct a new tank. The CC came into contact with acid during installation but this did not affect setting or performance.
 
 
 
 
 
 


Remediation

In January 2011, Miller Capilano Highway Services were commissioned through Nuna Innovations to trial the use of Concrete Cloth™ (CC) GCCM* to repair damaged curbs. The void in the curb was first filled and then lined with CC8. The CC was wrapped around the curb and fixed into position using standard concrete anchor screws before hydrating. Following the success of the trial, which was completed in under two hours, a number of other curb sites are being considered for refurbishment using CC.
 
 
 
 
 


Remediation

In January 2012 Concrete Cloth™ (CC) GCCM* was specified for time critical remedial work of a fish farm, lining a cracked and dilapidated concrete reservoir. The reservoire was refilled to set the CC which was possible due to CC's low washout quality. In underwater setting, Concrete Cloth loses only 3% by mass. By comparison, specialized underwater concretes typically lose between 10-15% while also requiring much larger volumes to be poured. Unlike most concretes, it is not classified as an irritant and is less damaging to the environment. Concrete Cloth has been approved for use in live water courses. The reconditioned fish farm reservoir was restocked 1 day after CC installation.
 


Remediation

In February 2014, Concrete Cloth™ (CC) GCCM* was used to remediate a damaged curb and channel in Thames, New Zealand. The original poured concrete ditch was cracking due to age and environmental weathering. The project was installed by a team of 3 in 1 hour, which was an estimated 5 times faster than poured concrete. The client was pleased with the CC8TM, especially the speed and ease of install, as well as cost effectiveness. The council will likely use Concrete Canvas® GCCM in future projects.
 
 
 
 
 


Remediation

In September 2014, Concrete Cloth™ (CC) GCCM* was used to remediate a drainage ditch at Pogo Mine, Alaska, USA. The ditch prevents surface and storm water coming into contact with the mining tailings field. Due to the location and terrain there are challenges with storm and surface water management. 2 miles of shotcrete lined ditches had been installed in the previous two years. Storm water had undermined the ditch which, with freeze-thaw cycles and heavy rain caused extensive cracking of the shotcrete. CC allowed the installation in weather that would prevent the use of conventional concrete. Additionally CC will negate the costly maintenance associated with other drainage solutions.
 


Remediation

In August 2014, Concrete Cloth™ (CC) GCCM* was used to line an extinguishing lake to improve impermeability. The original poured concrete structure had cracked and spalled, resulting in excessive water loss. Removing the incumbent basin and re-building it using poured concrete and form work was considered, however this would have been more time consuming and taken the basin out of operation for an extended period of time during construction.
 
 
 
 
 
 


*Geosynthetic Composite Cementitious Mat


Concrete Cloth Characteristics

 
Concrete Cloth is a flexible cement impregnated fabric that hardens on hydration to form a thin, durable water proof and fire proof concrete layer.

Essentially, it's concrete on a roll Just Add Water.

Easy To Use

Concrete Cloth is available in man portable rolls for applications with limited access or where heavy plant equipment is not available.

There is no need for mixing or measuring, the concrete is premixed and cannot be over hydrated. It will set in fresh and sea water.

Rapid

Once hydrated, Concrete Cloth remains workable for 2 hours and hardens to 80% strength within 24 hours.

Accelerated or retarded formulations can be produced to meet specific customer requirements.

Flexible

Concrete Cloth has good drape characteristics, allowing it to take up the shape of complex surfaces including those with a double curvature. Unset Concrete Cloth can be cut or tailored using basic hand tools.

Hydrocarbon Resistance

CC offers hydrocarbon resistance to BS:14414; based on a 56 day immersion test at 50°C

Strong

The fibre reinforcement prevents cracking, absorbs energy from impacts and provides a stable failure mode.

Durable

Concrete Cloth is chemically resistant, has good weathering performance and will not degrade in UV.

Water Proof

The PVC backing on one surface ensures that the material is completely water proof and chemically resistant.

Fire Proof

Concrete Cloth is a ceramic and will not burn.

CO2 Savings

Concrete Cloth is the only way of laying a thin concrete layer from a prefabricated roll of material.

This enables up to 150 mm of poured concrete to be replaced with just 8 mm for many surfacing applications.

As a result, material savings of 95% can be achieved for a typical construction project.

This directly reduces the CO2 footprint of construction work not only through material savings but also through reduced road transport and time on-site.

Low Wash Out

Concrete Cloth traps dry concrete powder in a 3-dimensional fibre matrix. Testing based on BS8443 to indicate the effect of underwater setting, shows that Concrete Cloth loses only 3% by mass.

By comparison, specialized underwater concretes typically lose between 10-15% while also requiring much larger volumes to be poured.

Alkalinity

Concrete Cloth uses a specialized high early strength concrete with a limited alkaline reserve. Unlike most concretes, it is not classified as an irritant and is less damaging to the environment.

Environment Agency Approval (UK)

Concrete Cloth was approved for use by the Environment Agency (EA) Biodiversity team in 2010 for the Church Village Bypass Project.

Benefits cited included ‘surface roughness to provide diversity in the channel's morphology’ and its ability to introduce ‘sinuosity in the channel line’.

Several projects have since been granted approval on a case-by-case basis and the EA recently purchased Concrete Cloth directly for internal use as a weed inhibitor.

Greening

Untreated Concrete Cloth will naturally ‘green’ over time as the textured top surface allows moss growth, whilst the fibre-reinforced concrete layer will prevent root-growing vegetation, which would otherwise restrict water flow and increase maintenance costs.
 


Nuna Innovations Inc.

Toll Free: 1.855.815.4385
Telephone: 1.604.815.4385
Fax: 1.604.815.0098
Email: sales@nunainnovations.com