Concrete canvas
Strength and Durability
1. Compressive strength after hardening reaches 20–50 MPa, equivalent to conventional C20–C50 concrete
2. Laboratory tests indicate a service life of over 50 years, with some real-world applications exceeding 10 years without damage
3. Resistant to acids, alkalis, and ultraviolet radiation; permeability coefficient as low as 10⁻¹¹ m/s, providing excellent waterproof performance
Concrete Canvas (CC), also known as "cement-impregnated fabric" or "concrete fabric," is an innovative flexible cementitious composite material. It resembles a heavy textile blanket, pre-mixed internally with cement powder and a fiber reinforcement matrix, and typically features a waterproof PVC membrane on the underside. Installation requires only positioning the material and adding water. Upon hydration, the cement begins to set within two hours and reaches 70% of its final strength within 24 hours, ultimately forming a durable, waterproof, and fire-resistant concrete layer.
This material combines the flexibility of fabric with the strength of concrete, allowing it to be freely bent and folded to conform to complex terrains and curved structures, significantly simplifying traditional concrete construction processes.
I. Strength and Durability
1. Compressive strength after hardening reaches 20–50 MPa, equivalent to conventional C20–C50 concrete
2. Laboratory tests indicate a service life of over 50 years, with some real-world applications exceeding 10 years without damage
3. Resistant to acids, alkalis, and ultraviolet radiation; permeability coefficient as low as 10⁻¹¹ m/s, providing excellent waterproof performance
II. Applications of Cementitious Textile: What Are the Main Uses?
Thanks to its rapid deployment and no need for heavy machinery, cementitious textile demonstrates unique advantages across various scenarios:
1. Emergency and Rapid Construction
· Temporary roads after disasters, flood embankments, and reinforcement of breached dams (e.g., Jiangxi flood relief in China, 2020)
· Emergency shelters (CCS Shelter), formable in as little as 40 minutes, habitable within 2 hours
2. Infrastructure Repair and Protection
· Pipe wrapping, bridge strengthening, tunnel lining
· Slope protection, riverbank and mine slope stabilization, as an alternative to shotcrete, preventing soil erosion
3. Environmental and Agricultural Applications
· Construction of corrosion-resistant troughs, drainage channels, and drought-resistant canals (already applied in Africa)
· Anti-seepage layers for reservoirs and water storage pits
