Quality standards for curb stone molds

1. Curb stone is the boundary between the roadway, sidewalk, green space, separation belt and other parts of the road on the road surface, which plays the role of ensuring the safety of pedestrians and vehicles and ensuring the neat edge of the road quality standard:
Straightness: 10mm, Adjacent block height difference: 3mm, Gap width: ±3mm, Side stone top elevation; ±10mm,
2. Material requirements for curb stone:
The stone of the roadside stone is cut by natural hemp stone machine with uniform texture, the strength of the stone must be qualified, the color is uniform, the surface is free of cracks, the edges and corners are complete, the appearance is consistent, there are no obvious spots, color difference, weathering phenomenon is not allowed, and it is not allowed to fall, smash, bump, touch when loading and unloading, so as not to cause damage.
3. Curb stone processing requirements:
According to the uniform length of the blanking, the exposed surface must be machine-cut and polished, the allowable error of length is within ±20mm, and the allowable error of width, thickness and height is within ±2mm. {Dao tooth mold} {curb mold} {curb plastic mold}
4. Roadside stone construction requirements:
a. The curb stone must be hung through the line for construction, according to the top surface of the side plane to show the height mark line tight, according to the line code to build the side flat stone, the side flat stone should be safe, avoid front and back close, the side top line is straight and smooth and smooth, there is no high and low tooth misalignment phenomenon, the plane has no up and down wrong platform, internal and external tooth wrong phenomenon.
b. The curb stone must be built with a pulp, the seat pulp must be dense, and it is strictly forbidden to plug and sew masonry;
c. The misalignment of the joints of the curb stones shall not exceed 1mm; the side stones and flat stones must be evenly staggered in the middle.
d. The flat stone on the side of the curb stone should ensure that the size and finish meet the design requirements. The appearance is beautiful, and the side stones of the curved part should be specially processed according to the design radius, and the line shape is smooth, rounded and tightly seamed during masonry. Curved side stones must be hand-chiseled and polished.
e. The back of the curb stone should be compacted, the width of the tamping should not be less than 50mm, and the thickness should not be less than 15mm.