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Concrete Pumping Pipe
A concrete pumping pipe comprising no metal pipe, and having a cylindrical body composed of a resin, wherein a dynamic friction coefficient of the inner surface of the cylindrical body is 0.07 to 0.30, the cylindrical body is free of rupture and leakage in a 25 MPa hydraulic pressure resistance test, and a total luminous transmittance per 2 mm-thickness test piece of the cylindrical body is 10% or more.
Concrete Pumping Pipe
A concrete pumping pipe comprising no metal pipe, and having a cylindrical body composed of a resin, wherein a dynamic friction coefficient of the inner surface of the cylindrical body is 0.07 to 0.30, the cylindrical body is free of rupture and leakage in a 25 MPa hydraulic pressure resistance test, and a total luminous transmittance per 2 mm-thickness test piece of the cylindrical body is 10% or more.
Concrete Pumping Pipe
SATO KOICHIRO (author) / KASUMI KEIJI (author)
2024-04-11
Patent
Electronic Resource
English
Pumping concrete -- Friction between concrete and pipe-line
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