GRP Pipe (GRP)

Definition - What does GRP Pipe (GRP) mean?

GRP pipe (Glass fiber Reinforced Plastic) is pipe made of two or more different materials, the qualities of which combine to provide superior strength. GRP pipes consist of vinyl ester resins, or unsaturated polyester, glass fiber pieces and reinforcing agents. These materials have superior qualities such as corrosion resistance, being light weight, allowing a smooth bore and maintaining stability in longer sections. Compared to traditional concrete pipes, GRP pipes are easier to install when using trenchless construction methods like horizontal directional drilling and microtunneling.

Also termed glass fiber reinforced plastic pipe.

Trenchlesspedia explains GRP Pipe (GRP)

With the increase in use of chemicals for household cleaning, the amount of abrasive chemicals being emptied into the municipal sewerage system is also increasing. Traditional concrete and iron pipes are failing to sustain the abrasion and load. GRP pipes are an effective replacement because they only weigh a quarter of the weight of iron pipes and about a tenth the weight of a concrete pipe. GRP corrosion resistant properties make it maintenance free for long periods of time. The smooth internal bore ensures that there is no accumulation of waste or buildup of slime leading to a loss in efficiency of the pipe. These pipes can be cut into longer sections to reduce joints and effectively decreasing installation cost and time. Joining two GRP pipes gives a tighter fit than most other pipes, and effectively prevents infiltration and exfiltration problems.

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