| 摘要 |
PROBLEM TO BE SOLVED: To provide a pavement material having excellent water permeability, potent compression strength, folding strength, weedproof property and excellent durability.SOLUTION: After mixing at requirement composition, the mixed resultant is laid in place and then finished by pressing at rotation pressure of 200 to 3,000 kg with exclusive press machine. In composition of the pavement, any of EVA, Portland cement or Portland blast-furnace cement is mixed at 5 to 25% of aggregate weight. Powder emulsion, EVA-DM-1645 PM are mixed at 5 to 22% at every utility. Excellent properties of volcaniclastic rock, molten slag, andesite, Shirasu sand, Shirasu balloon and crushed rock, such as strength, water retaining property, insulation property, water purification property and the like, are applied to pavement so as to return rain water into the ground. Gap ratio of water permeable pavement is 15 to 25%. Due to natural evaporation phenomenon of water stored in the gap, surface temperature is 5 to 10°C lower than asphalt pavement or concrete pavement, thus suppression of heat island and weed prevention and suppression of global warming are realized.SELECTED DRAWING: None |
