| 摘要 |
A road boundary stone using polyester resin is provided to improve durability and heat resistance of the boundary stone, to cut down repairing and maintenance expenses, and to decrease weight by using moistureproof polyester resin. A boundary stone(1) for dividing a sidewalk from a driveway is produced by using polyester resin, and formed into a hexahedron. A penetration hole(10) is formed longitudinally in the middle of the boundary stone, and an assembling unit is formed at an end of the boundary stone. The assembling unit is composed of a recessed groove(11) and a projection. The various color boundary stone is manufactured by adding a coloring agent. The boundary stone is produced by mixing at least one or more among aggregate from natural stone, glass fiber or synthetic resin. The weight of the boundary stone is reduced by forming the penetration hole in the middle of the boundary stone. |
