THIXOCRETE® Jacking Pipes
The high traffic density on streets, railways and airports, existing buildings or natural obstacles such as rivers, mountains or protected nature reserves create a need for pipeline building without cutting open trenches.
For pipe jacking Meyer Rohr + Schacht GmbH delivers THIXOCRETE® steel-reinforced concrete jacking pipes from DN 2000 through DN 3600.
THIXOCRETE® steel-reinforced concrete jacking pipes feature high compressive strength and are therefore best suited for pipe jacking. High jacking forces ensure successful drives.
The planned drives are able to follow vertical and horizontal curves. During pipe jacking compressed air can be used if required.
Pipe jacking requires a number of special pipes including start pipe, bentonite injection pipe, sluice pipe, leading and trailing pipes for intermediate jacking stations, and end pipe. These special pipes are designed and manufactured according to the needs of the client.
If more demanding requirements for corrosion protection have to be met an inliner made of PEHD concrete protection slabs (5 mm thick) is installed on the inner pipe surface.
The final, complete corrosion protection is achieved by bonding the pipe joints with cover strips.
Corrosion Protection
DIN 4030 states that concrete pipes made of B 45 sulfa concrete are resistant to „very aggressive“ effluents. If even more corrosive effluents are present, additional lining or coating is required. HDPE liners with profile anchoring knobs on one side to anchor to the concrete pipe are provided, which meet the requirements of PE DIN 16776. The HDPE liners are bonded with a joint cover strip made of the same HDPE material.
Concrete Quality
The concrete used meets or exceeds the quality criteria for class B 45 sulfa concrete made with early strength sulfate resistant Portland cement.
Reinforcement The reinforcement is made of BST 500 steel mesh and is designed to meet specific structural requirements.
Download brochure "THIXOCRETE® steel-reinforced concrete sewer pipes" (pdf)
