Pre applied self adhesive HDPE waterproof membrane with sand for tunnel is specially used in underground project, it can bond with concrete layer tightly. After Membrane bonding with concrete, water can be blocked between membrane and concrete, which can improve the reliability.

Thickness:1.2mm/1.5mm/2.0mm

Width:1.0m/2.0m

Length:20m

Color:White, black or customized

Advantages

1.Good bonding with concrete applied on membrane, to block water between membrane and concrete further to protect concrete effectively.

2.Low flatness requirement to substrate, reliable overlapping; mechanical fixing, easy application.

3.Sound anti-puncture performance.

4.Adaptable to settlement and distortion.

5.Weather-resisting and anti-UV.

6.Resist to acid, alkali, mold.

7.Eco-friendly material

Application procedure:

Surface preparation→ geo textile application→ position setting→ membrane installation → wide edge overlapping → long edge overlapping → inspection & approval→ remove release film → install steel bar → concrete work.

Surface preparation:

firm, dense, smooth surface without bumps, cracks and holes