During the macadamize process, attention to the flatting combination layer reverse mortar, if there are some polluted tile, please use the water to clean at once.
铺装时注意找平结合层砂浆反浆，如有污染砖面应马上用水清洗干净。
2
Joint filling 48 hours after macadamize, use the mixture of cement and crushed sand with 1:0.5 to fill, after that, use the water to clean roughly the tile surface.