Concrete Canvas

Go Green concrete canvas is an innovative flexible composite material, meticulously composed of a  fabric base layer, a concrete structural layer, and a high-strength reinforcement layer. Upon contact with  water, it rapidly hydrates to form a high-strength, impermeable concrete structure. Combining the  flexibility of textiles with the durability of concrete, it serves as an alternative to traditional concrete  construction methods and is widely used in water conservancy, infrastructure, environmental protection,  and emergency engineering projects.

The concrete canvas is structurally composed of three layers: upper, middle and lower. 

1. Upper layer: water absorption and protection layer  

Made of geotextile needle-punched from high-density polyethylene (HDPE) fibers, polypropylene  (PP) fibers, or polyester fibers. This layer serves to absorb water and protect the structure. 

2. Middle layer: dry concrete powder layer 

This layer consists of a specially formulated dry concrete mix. After water is added, it begins to  harden, reaching over 70% of its maximum performance within 24 hours, and achieves optimal  strength in 28 days. 

3. Lower layer: water control and reinforcement layer

Made of slit-film woven geotextile or flat-yarn woven geotextile, using high-density polyethylene  (HDPE) or polypropylene (PP) as base materials. This layer provides water retention and  structural reinforcement.

The fabric base layer serves as a protective layer, effectively safeguarding the concrete to ensure  complete hydration while maintaining its integrity under prolonged exposure to wind and sunlight.  The concrete structural layer is meticulously formulated with high-strength cement, quartz sand,  and curing enhancers. Through the hydration reaction, it forms a high-strength solidified material  that provides robust structural support while offering excellent impermeability and curing  performance. Additionally, the high-strength reinforcement layer, woven from high-strength elastic  polyester material, exhibits outstanding tensile strength, elasticity, and resistance to corrosion,  acids, alkalis, and aging. It plays a crucial role in reinforcement, crack prevention, and tensile  resistance in engineering applications.

Core Performance Features  

1. High Strength and Durability:

• Compressive strength ≥ 20 MPa, freeze-thaw resistance ≥ 50 cycles, suitable for  environments ranging from -5°C to 50°C.

• UV-resistant and resistant to acid and alkali corrosion (pH 3-12), with a lifespan exceeding  20 years (without external damage). 

2. Multifunctional Protection:

•  Waterproof & Impermeable: The HDPE/PP liner structure provides effective seepage  prevention and waterproofing. 

• Erosion Resistantance: Suitable for applications exposed to water flow impact, such as rivers, canals, and coastal embankments.

3. Flexibility & Adaptability:

• Can bend and conform to complex terrains such as trenches and vertical surfaces, and supports  double-curved surface designs.

Concrete Canvas Features and Advantages 

1. Simple and Fast Construction: The construction process is straightforward and quick, requiring  only basic compaction and leveling of the site. Construction can even proceed during the rainy  season. Compared to traditional concrete pouring, cement blankets can save 50%-70% on labor  and machinery costs and reduce the construction time by approximately 50%.

2. Acid and Alkali Resistance: The product is resistant to both acid and alkali, making it suitable  for a wide range of environmental conditions and various engineering projects.

3. Long Lifespan: Typically, the lifespan is 20-30 years. With special treatments, the service life  can be extended up to 50 years.

4. Variety of Types: Concrete canvas can be produced in various types, including permeable,  reinforced, lightweight, flame-retardant, and multifunctional composite options, providing high quality products and services for different engineering requirements and application scenarios.

5. Aesthetic & Eco-Friendly: The color of the cement blanket can be customized, allowing the  project to be integrated into landscape designs, reflecting the concept of environmental  sustainability and blending harmoniously with the natural surroundings.

Construction

The concrete canvas can be laid either manually or using machinery. It should generally be installed from  top to bottom in a longitudinal direction. 

During the installation process, it is important to ensure that the overlap width is controlled within 15 cm  and use double-sided tape for bonding. 

Additionally, the longitudinal seams, the joint between the concrete  canvas and the slope, as well as the transverse edges, should all be anchored to ensure the safety and  stability of the construction. 

Note: For seam treatment of the concrete canvas, you can use double-sided tape (5 cm in width), mortar, or  screws for connection to ensure a secure joint. The fixation of the concrete canvas to the slope can be  achieved by using U-shaped nails, expansion screws, or anchor rods, depending on the slope structure.

After the installation, it is essential to promptly apply water curing to the concrete canvas, ensuring an  even and thorough spray. A second curing treatment should be performed within 24 to 48 hours to ensure  optimal hardening of the concrete canvas.

Technical Specification

Application Range

Thickness: 6-20mm (customizable)

Standard roll: 1m × 10m; customizable (maximum width: 4m)