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Pioneering Anti-Erosion Solutions: Santam Technology Drives Sichuan’s Hydrogen and Hydropower Expansion
2025-03-27
Santam Tech has developed multiple types of material in protection material of the dams
Located in southeastern China, the Sichuan Plain boasts abundant water resources and is currently witnessing a surge in the construction of numerous large-scale hydrogen projects. This year alone, over 80 billion RMB is set to be invested in hydrogen infrastructure, with an additional 3 trillion RMB poised for future investments. These advantages have positioned our company, Santam Technology, as the leading innovator in materials within the southwestern region. We have actively engaged in this wave of construction, contributing our expertise on-site. Throughout the dam construction process, we have identified our most suitable products, which cater to the demands of national and medium-to-large water conservancy and hydropower engineering projects. Our focus is on addressing challenges such as high-speed water erosion on overflow spillways, the effects of freeze-thaw cycles, and the issues of aging dam leakage.
1. ST-SC650 Flurosilicon Single Component Polyurea-Hydraulic Concrete High Impact Resistance Composite Coating
2. ST-PA410 Double Component of Fluorine and Silicon in Polyaspartic Polyurea, Anti-Aging Coating of Hydraulic Structures
3. ST-P311 High-Performance Fluorine-Silicon Spraying Polyurea- -Anti-Seepage And Anti-Crack Coating of Hydraulic Structures
4. ST-TC400 Water Immune Slow Reaction Two-Component Manual Polyurea —— Hydraulic Concrete High Weather Resistance Protection and Repair Material
5. ST-G211 Polyurea Grout —— High Permeability Reinforcement Repair Material For Hydraulic Structures
Santam’s polyurea coating works as an anti-impact and anti-abrasion in the dam face slab. For the button outlet, we developed a specified epoxy mortar to address the huge impact and abrasion that the dam concrete will endure during the operation. It is widely used in the anti-scour and abrasion-resistant concrete layers of water discharge and energy dissipation structures in hydropower projects in Southwest China. It significantly enhances the impact and abrasion resistance of concrete, providing excellent protection against high-speed water flow scouring, sediment abrasion damage, and vehicle track deformation. Through extensive testing and upgrades based on the original product, not only improves impact and abrasion resistance but also enhances crack resistance, reduces viscosity, and offers better protective performance. It features high anti-scour strength, effective crack prevention, and excellent concrete workability, making it suitable for hydraulic discharge and sediment-handling structures such as spillway tunnels, flood discharge channels, diversion tunnels, sluiceways, and sediment flushing tunnels—all of which are prone to damage from high-speed water flow, abrasion, and cavitation.
Construction site at Chunzai Dam button outlet, workers are applying the epoxy
| Property | Value |
| Compressive Strength | >19.6 MPa |
| Tensile Strength | >5.0 MPa |
| Bonding Tensile Strength with Concrete | ≥10.0 MPa (Failure in C50 concrete substrate) |
| Abrasion Resistance | >80.0 (Abrasion flow velocity 40 m/s) |
| Impermeability Coefficient | 2.42 h·(g·cm²) |
| Compressive Elastic Modulus | 1903 MPa |
| Impact Resistance | ≥4 KJ·m⁻² |
| Chemical Resistance | Resistant to NaOH, H₂SO₄, Saline Solution |
| Toxic Substance Content | Benzene: 0.92%, Toluene + Xylene: 30%, Total Volatile Organic Compounds: 50% |
| Aging Performance | Excellent |
| Water Absorption Rate | 10% |
| Testing Method | According to indoor decoration material testing methods |
Santam Technology prioritizes safety in water conservancy and hydropower projects, recognizing their critical role in sustaining the national economy and public well-being. These projects face relentless challenges due to harsh operational environments, including cyclic dry-wet conditions, high-velocity water erosion, dynamic stress fluctuations, and frequent structural defects. Key infrastructure components—such as sluice gates, reservoirs (encompassing hydroelectric power stations and rural small hydropower systems), water turbines, and water conveyance structures (e.g., spillways, sand-flushing tunnels, diversion pipes, and tailraces)—are particularly vulnerable to degradation. Industry studies reveal that over 70% of hydraulic concrete structures suffer from cracks, erosion damage, carbonation, and sediment buildup, significantly compromising operational safety and lifespan. Santam Technology integrates advanced material innovations and predictive maintenance strategies, ensuring resilient infrastructure that withstands both natural and mechanical stressors. By focusing on durability enhancement and real-time monitoring, we empower projects to achieve long-term reliability, safeguarding communities and energy security for future generations.
