| 摘要 |
PROBLEM TO BE SOLVED: To remove redundant water and bleeding water in an installed concrete when installing concrete without requiring special two members or troublesome work as in the past.SOLUTION: A water permeable hose 1 with a function, which allows air and water to pass through and prevents a substance with the same diameter as or a larger diameter than a cement particle from passing through, is installed in a space for concrete installation. After installing a predetermined concrete in the space for concrete installation, redundant water, bleeding water and entrapped air are suctioned and discharged from inside of the installed concrete by applying a negative pressure in the water permeable hose 1. Specifically, the water permeable hose 1 is fixed so as not to move during concrete installation. A vacuum pump P is connected to the water permeable hose 1 and the negative pressure is applied in the water permeable hose 1 by driving the vacuum pump P.SELECTED DRAWING: Figure 2 |
