| 摘要 |
PROBLEM TO BE SOLVED: To provide a reinforcing plate made of concrete, having no possibility of corrosion, and capable of being used in place of a steel sheet used in the past for reinforcing a floor board. SOLUTION: This reinforcing plate for the floor board is made of a hardened body of a mixture including at least cement, pozzolanic fine powder, fine aggregate with the grain size of 2 mm or below, a water reducing agent, and water. The mixture preferably includes metal fibers and/or organic fibers, inorganic powder with the average grain size of 3-20μm, and fibered grains or sliced grains with the average grain size of 1 mm or below. |
