CONCRETE STRUCTURE AND CONCRETE EXCESS-WATER REMOVING METHOD

PROBLEM TO BE SOLVED: To increase strength and durability by installing a drainage material having water absorption properties such as a nonwoven fabric, sponge, etc., to a structural material and mounting a structural member given a drainage function into concrete. SOLUTION: A drainage material 2 having water absorption properties such as a nonwoven fabric, sponge, etc., is set up to a structural material 1 such as a reinforcement, a continuous fiber-reinforced material, etc., and a structural member 3 given a drainage function or the drainage material 2 having water absorption properties such as the nonwoven fabric, sponge, etc., is fitted into concrete 4. Consequently, excess water in concrete 4 can be removed efficiently to the outside of concrete 4 through the structural members 3, to which the drainage materials 2 are installed, or the drainage materials 2, and conditions, in which a water-cement ratio in the vertical direction is not kept constant by a bleeding phenomenon, can be eliminated. Accordingly, the water-cement ratio can be kept constant even in the vertical direction, and the concrete structure, in which strength and durability can be increased by equalizing the quality of cured concrete and which has high quality, can be manufactured.