Traffic Engineering TPO Waterproofing Membrane -40℃ No Crack

Tpo Waterproof Membrane For Traffic Engineering

Product Introduction

TPO waterproof membrane for traffic engineering mainly adopts high-str fabric-reinforced type P products, with type L membranes with fiber backing used in some invert parts. Its mainstream thicknesses are 1.5 and 1.8mm. The tear resistance and impact performance of this product are much higher than those of ordinary civil TPO membranes It is specially designed for the complex working conditions of transportation infrastructure such as highway tunnels, railway tunnels, metro tunnels, bridges and culverts complies with the national standard GB 27789-2011, meets the special waterproofing specifications for tunnel engineering in the transportation industry.

Product features

 The core advantage of this type of membrane roll is its high tear resistance. The trapezoidal tear strength of Type P products can reach more than 450N, which can withstand the impact and puncture of rough edges and sharp on the surface of shotcrete in the primary tunnel support, and is not easily. It has excellent high and low temperature resistance. In the long-term humid environment of tunnels with large temperature differences it can still maintain stable mechanical properties, without problems such as low-temperature brittleness cracking and high-temperature runoff. Meanwhile, it has outstanding fatigue resistance, withstand continuous vibration and structural micro-deformation caused by trains and vehicle passage for a time. The waterproof layer will not crack due to fatigue from repeated deformation, and has extremely long-term service stability.

Construction Steps

 First, grind off all sharp protrusions on the surface. Lay a non-woven fabric cushion if necessary, and lay the waterproof by mechanical fixing or full bonding method according to the engineering scenario. Use hot air for all lap joints to form a continuous sealing layer. After the weld is completed perform vacuum leak detection. After confirming there are no leak points, pour a concrete protective layer or lay a ball layer above the membrane to prevent direct water flow from scouring the membrane.