CENTRIFUGAL FORCE BAMBOO-REINFORCED CONCRETE PIPE AND METHOD FOR CONSTRUCTION OF FISH REEF BLOCK USING IT

摘要

PPROBLEM TO BE SOLVED: To provide a centrifugal force bamboo-reinforced concrete pipe compacted by a centrifugal force by rotating a formwork at a high speed, in which a bamboo material is used as a cylindrical bamboo cage to be laid in the pipe. PSOLUTION: The bamboo material is used for a spiral reinforcement 1 and an axial reinforcement 2 which constitutes the cylindrical cage of the centrifugal force bamboo-reinforced concrete pipe. A crossing point of the spiral reinforcement 1 and the axial reinforcement 2 is strongly tied by an annealed iron wire 3, and a plastic spacer 4 is installed for keeping covering of the concrete to the bamboo reinforcement. PCOPYRIGHT: (C)2005,JPO&NCIPI