This product, mainly made of a 90% ES + 10% PP blend via needle - punching, has specs like 350g/㎡ × 1.5m width × 100m length (customizable). It minimizes concrete blemishes and cracking, offers high corrosion resistance, resists oil and microbial growth, is easy to install and reusable, cuts costs for installation and maintenance. Used in bridge, tunnel, etc. Another is a waterproof self - adhesive breathable liner needing no adhesive for quicker installation.
| Product name | Controlled Permeability Formwork Liner | |||||
| Test Item | Design Requirement | Measure Value | ||||
| Weight per unit area (g/㎡ ) | ≥320 | 348 | ||||
| Thickness (mm, 2kPa） | ≥0.6 | 1.74 | ||||
| Thickness compression Ratio(%) (200kPa/2kPa） | 35-70 | 62.6 | ||||
| Trapezoidal tear strength (N） | MD | ≥250 | 507 | |||
| CD | ≥200 | 305 | ||||
| Puncturing strength(N) | ≥300 | 453 | ||||
| Air permeability [m³ /(㎡ • s)] | ≤4 | 0.0307 | ||||
| Water discharge capacity(L/ m2• s) H=100mm | ≥0.4 | 0.4 | ||||
| Apparent Opening Size(µm) | ≤30 | 29.6 | ||||
| Water holding capacity(L/㎡) | ≥0.25 | 1.02 | ||||
Dramatically minimizes surface blemishes (pinholes/sand holes) and cracking in concrete.
Provides exceptional resistance to external degradation with high corrosion protection, particularly against ionic diffusion.
The elimination of surface voids and cracks produces a densified concrete matrix that resists oil accumulation, significantly inhibiting microbial colonization and reducing bacterial/algal growth - thereby minimizing biogenic surface contamination.
The product enables rapid, simple installation and is reusable, delivering significant cost savings.
Eliminates the need for release agents while ensuring easy demolding.
Reduces overall project costs while significantly lowering long-term maintenance expenditures.
1. Bridge engineering: Applied to enhance the quality of concrete structures in bridges, reducing surface blemishes and cracking, and providing corrosion resistance.
2. Ballastless track: Helps in creating a better - performing concrete matrix, minimizing biogenic surface contamination and cutting costs for construction and maintenance.
3. Tunnel construction: Utilized to improve concrete quality, with features like easy installation and resistance to oil accumulation and microbial growth.
4. Sluice - dam and river levee: Offers protection against external degradation and corrosion, contributing to long - term durability and cost-effective maintenance.
5. Airport infrastructure: Facilitates rapid installation and reduces overall project costs while ensuring good performance of concrete components.
6. Stadium construction: Enables simple installation, resists surface damage, and minimizes the need for release agents during construction.
Formwork Surface Cleaning
Formwork Liner Cutting
Spraying the Glue
Pasting the Formwork Liner
Seam Treatment
Quality Inspection
