| 摘要 |
A manufacturing method of a road boundary stone using a colored quartz mineral is provided to increase the visibility of a road boundary stone and to improve the appearance of the streets with natural colors. The road boundary stone using a colored quartz mineral is manufactured by cutting off a colored quartz mineral having the appointed particle size as it is, or, mixing 72~78 weight percent aggregate mixed with 50~60 weight percent gravel having the particle size of 13~20mm and 40~50 weight percent sand having the particle size of 5mm or below, 15~21 weight percent cement and 5.5~8.0 weight percent water and molding the admixture in the appointed shape, cutting off the molding into many parts to have the shape of a road boundary stone, and processing and grinding the cut molding in the appointed shape and colors. Wherein 1~2 weight percent pigment having the same color as the colored quartz mineral enables to be added when manufacturing the admixture. |
