Connection structure and connection method for precast concrete floor slab
(10) JP2022015948A
(22) 10.07.2020
(43) 21.01.2022
(57) To suppress the self-shrinkage of concrete and facilitate the combined use with deformed reinforcing bars in a connection structure and a connection method for a precast concrete floor Slab.Solution: A connecting structure 1 of a pair of precast concrete floor slabs 2A, 2B facing each other through a gap G has a joint 3 provided in the gap G and a filling concrete 4 for filling the gap G, and the filling concrete 4 includes fine aggregate containing ferronickel slag and coarse aggregate. A method for connecting the precast concrete floor slabs 2A, 2B includes a step of arranging a pair of precast concrete floor slabs 2A, 2B so as to face each other via the gap G and provide the joint 3 in the gap G, and a step of filling the gap G with the interposed concrete 4; the filling concrete 4 contains fine aggregate including ferronickel slag and coarse aggregate.
(71) Sumitomo Mitsui Construction Co. Ltd., JP
