| 摘要 |
PROBLEM TO BE SOLVED: 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. SOLUTION: 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 <=1μm, metal fibers, quartz powder having an average particle size of 3 to 30μm, fibrous or flaky reinforcing particles having an average particle size of <=1 mm, a water reducing agent and water. |
