| 摘要 |
<p>PURPOSE: A composite functional permeable flat board and a manufacturing method thereof are provided to remarkably improve durability, transmissibility, strength, and functionality, and to display various colors by natural aggregate. CONSTITUTION: A composite functional permeable flat board is composed of 2~4mm aggregate 65~80 weight%, 1~2mm silica sand 5~10 weight%, cement 7.5~12.5 weight%, blast furnace slag 7.5~12.5 weight%, repair compound 1.0~5.0 weight%, phosphate 0.35~1.0 weight%, TiO2 photocatalyst powder 0.25~0.75 weight%, and expansion agent 0.25~1.0 weight%.</p> |
