| 摘要 |
PROBLEM TO BE SOLVED: To provide a detergent that can efficiently and effectively remove the soil, sand, dirt, dust or cloggings in the gaps of a draining or water- permeating pavement road to restore the original water-draining or water- permeating properties of the paved road. SOLUTION: The objective detergent for the paved road includes a dispersant having the surface tension of 45-72 mN/m, when it is diluted with water to 0.1 wt.% concentration, a penetration agent having the surface tension of 20-45 mN/m, when it is diluted with water to 0.1 wt.% concentration.
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