To provide a connecting bridge which exhibits extremely high strength even though it is free from a reinforcing material and prestress, and has high resistance to salt damage, and thereby exhibiting excellent durability and advantage in cost.
Thick-walled crossbeam parts 10 and thin-walled base plate parts 11 are integrally formed by using a cement-based curing material having a compression strength of ≥180 MPa and a 4-point bending strength of ≥30 MPa which is obtained by curing a mixture composed of cement, a fine aggregate having the maximum particle size of ≤2 mm, pozzolan-based reactive particles having an average particle size of ≤1 μm, metal fibers, quartz powder having an average particle size of 3 to 30 μm, fibrous or flaky reinforcing particles having an average particle size of ≤1 mm, a water reducing agent and water.
KATAGIRI MAKOTO
MAEHORI SHINPEI
ONO TAKESHI
TAIHEIYO CEMENT CORP
JPH09500352A | 1997-01-14 | |||
JPH11303015A | 1999-11-02 | |||
JPH08144219A | 1996-06-04 | |||
JPH11130508A | 1999-05-18 | |||
JPH11246255A | 1999-09-14 | |||
JPH0237448B2 | 1990-08-24 | |||
JP2759755B2 | 1998-05-28 |