| 摘要 |
PROBLEM TO BE SOLVED: To provide a grout-based water retention material capable of drastically improving the temperature lowering on a pavement surface, having excellent water-retaining function and excellent in water-permeable performance, and to provide a simple construction method for water-retentive pavement using the water retention material. SOLUTION: This grout-based water retention material contains preferably 20-40 wt% cement, 5-30 wt% clayey material in a dry form, and 0.01-0.5 wt% water-absorbing resin. It is preferable that the clayey material contains the clay content of 50 wt% or more as an effective ingredient. The construction method for the water-retentive pavement comprises adding water to the above water retention material so as to obtain a water-cement ratio of 50-300%, kneading, and spraying the obtained slurry on the pavement surface of the previously constructed concrete or asphalt pavement body to harden the slurry in the voids of pavement body. COPYRIGHT: (C)2006,JPO&NCIPI |
