Tongfu is a specialized manufacturer and supplier of weed barrier fabrics, geomembrane liners, and concrete blankets in China. Also known as "concrete canvas," the concrete blanket is an innovative, flexible, cement-based composite engineering material. It is created by integrating a high-strength 3D fiber matrix with a specially formulated dry cementitious mix. In its dry state, the material is flexible and can be rolled, cut to size, and fitted to irregular surfaces. It requires no mixers or formwork; simply unroll and hydrate on-site for rapid setting and hardening into a monolithic concrete protective layer.
Fish Pond Concrete Blanket features an inherent impermeable structure and offers excellent resistance to erosion, freeze-thaw cycles, and cracking. Compared to traditional cast-in-place concrete or masonry slope protection, it increases construction speed by over 70%, generates zero construction waste, and requires no ongoing maintenance. It represents a new generation of high-efficiency protective materials for applications such as hydraulic slope protection, canal lining, slope stabilization, and emergency repairs.
Key Technical Specifications
1. Standard Thickness Options
• Temporary drainage ditches, small-scale slope protection, temporary hoarding: 6mm, 8mm cement blankets
• Standard agricultural irrigation canals, riverbank slopes, fish pond slope protection, stormwater ditches: 10mm, 12mm cement blankets (mainstream industry specifications)
• Main road drainage ditches, river channels subject to high-velocity floodwater, heavy-duty slope protection: 15mm, 18mm thickened cement blankets
• High-altitude/cold regions, areas with standing water, and outdoor environments with significant diurnal temperature fluctuations: Freeze-resistant reinforced cement blankets (designed to withstand frost heave and cracking)
2. Key Performance Parameters
• Setting/Curing Time: Initial set 30 minutes after hydration; reaches 70% strength in 24 hours; fully cured to design strength in 7 days
• Compressive Strength: ≥20 MPa after curing; wear-resistant and durable; resistant to damage from light vehicular traffic
• Impermeability: Monolithic structure with no seams; permeability coefficient ≤1×10⁻¹² cm/s; inherent waterproofing and anti-seepage properties
• Weather Resistance: Crack-resistant down to -30°C; deformation-resistant up to 70°C; UV-resistant; outdoor service life exceeding 30 years
• Erosion Resistance: Monolithic structure; no delamination or hollow spots; withstands high-velocity water flow during flood seasons
• Construction Advantages: Flexible installation using dry material; conforms to curves, curved slopes, and irregular ditch shapes; no secondary cutting or patching required
Application Scope of Fish Pond Concrete Blanket
• Water Conservancy & Agricultural Projects: Lining of irrigation canals, slope protection for riverbanks and ponds, and seepage control/slope protection for stormwater retention basins.
• Municipal Road Projects: Municipal roadside drainage ditches, highway embankment slope protection, culvert inlet/outlet reinforcement, and erosion protection for road slopes.
• Ecological Restoration Projects: River ecosystem restoration, remediation of black and odorous water bodies, slope reinforcement for ponds, and soil and water conservation.
• Emergency & Other Projects: Emergency flood control and rescue, temporary flood-defense slope protection, surface hardening for storage yards, and seepage control/reinforcement for industrial wastewater channels.
On-Site Project Case Study
Basic Information
• Project Location: Agricultural irrigation canal renovation project in Jining, Shandong.
• Construction Date: June 2022.
• Project Scale: A 2,300-meter-long trapezoidal agricultural diversion canal; the original earthen channel suffered from severe soil erosion, leakage, and frequent slope collapses during the rainy season.
• Product Selected: 10mm thick cement blanket (meeting national standards).
• Project Conditions: Outdoor construction; significant seasonal temperature fluctuations; heavy rainfall and strong water flow erosion in summer; winter... The region experiences significant low-temperature frost heaving; requirements included rapid construction, zero post-installation maintenance, and a solution that provides both seepage prevention and slope stabilization.
Performance Results
• Highly efficient and time-saving construction: No concrete mixing, bricklaying, or formwork required; the process involves simply laying the blanket and hydrating it. The overall construction period is reduced by two-thirds compared to traditional concrete methods, resulting in massive labor cost savings.
• Eliminates seepage and collapses: Once cured, the channel forms a seamless, monolithic structure that completely prevents water seepage and the loss of water and nutrients. The slopes remain secure and stable; after three consecutive years of heavy rain during flood seasons, there have been no collapses, voids, cracking, or delamination.
• Exceptional weather resistance and durability: After three years of exposure to seasonal temperature fluctuations and freeze-thaw cycles involving rain and snow, the surface remains intact with no weathering or damage. Structural strength remains fully compliant, eliminating the need for annual manual repairs.
• Ultra-low O&M costs: A one-time installation process requires no subsequent maintenance or cleaning. Water conveyance efficiency has improved drastically, leading to a significant increase in irrigation water utilization rates.
Authentic Customer Feedback
"In the past, our earthen channels leaked every year and frequently collapsed during the rainy season; we had to spend money on manual desilting and repairs annually—a process that was both time-consuming and costly. After switching to the Concrete Blanket, the material hardens simply by laying it down and watering it, making construction incredibly easy. After three years of use, the channels remain in perfect condition—no leaks, no collapses, and zero maintenance required. It is far more cost-effective than brick masonry or cast-in-place concrete, making it an ideal solution for farmland irrigation channel slope protection."
— Engineer Liu, Project Manager for Farmland Water Conservancy
