DRAINAGE DITCH BLOCK AND DRAINAGE DITCH STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a weight reduction technique for drainage ditch block.;SOLUTION: A drainage ditch structure comprises a drainage ditch block 10 mounted on a building frame floor 34, two rail parts 21, 21 mounted on upper surfaces of wall parts 12, 12 with adhesives 38, 38 interposed, and a cross part 22 extended between those rail parts 21, 21, and the rail parts 21 and cross part 22 each comprise a frame member 20 made of metal and a grating 30 fitted in the frame member 20. The bottom part 11 and wall parts 12, 12 are formed of extruded polystyrene foam of 0.020 g/cm³ in minimum density. Consequently, the drain ditch block which is tens of kg is reducible to 1 kg or less. The construction is facilitated and construction costs are reducible because of the light weight.;COPYRIGHT: (C)2013,JPO&INPIT