| 摘要 |
PROBLEM TO BE SOLVED: To increase purifying efficiency, and remove NOx even at night. SOLUTION: An NOx purifying block for pavement has a surface layer composed of cement, titanium oxide powder and sand on a concrete base layer. Then, an absorbing material of 5 to 30 pts.wt. is mixed in the whole blending 100 pts.wt. (here, water is excluded) of the surface layer. One or more kinds among zeolite, magadiite, betalite and clay is used as the absrobing material. 10 to 50% among sand can be substituted with glass beads having a particle diameter of 1 to 6mm and/or glass powder. |
