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Characteristics of curb

路边石（路沿石）是指设用在路面边缘的界石，也成道牙或缘石，它是在路面上区分车行道、人行道、绿地、隔离带和道路其他路边石路边石部分的界线，起到保障行人、车辆交通安全和保证路面边缘整齐的作用。路边石的形式有立式，斜式和平式等。

The roadside stone (roadside stone) refers to the boundary stone which is set on the edge of the road surface, also becomes the road tooth or the edge stone. It is the boundary line which distinguishes the roadside, the sidewalk, the green space, the isolation belt and the roadside stone part on the road surface. The form of roadside stone is vertical, oblique and peaceful.

路边石（路沿石）材质要求 按统一长度进行下料，外露面必须机切抛光，长度允许误差在±20mm范围内，宽度、厚度、高度允许误差在±2mm范围内。

The material of roadside stone (roadside stone) should be cut and polished according to the uniform length, the allowable error of length should be within + 20 mm, and the allowable error of width, thickness and height should be within + 2 mm.

市政工程中路边石（路沿石）施工要求有哪些？

What are the requirements for construction of roadside stone (roadside stone) in municipal works?

1.路边石（路沿石）必须挂通线进行施工,按侧平面顶面示高标线绷紧，按线码砌侧平石，侧平石要安正，切忌前仰后合，侧面顶线顺直圆滑平顺，无高低错牙现象，平面无上下错台、内外错牙现象。

1. The roadside stones (roadside stones) must be constructed by hanging through the line. The top surface of the side plane indicates that the high standard line is tight, the side flat stones are laid according to the line code, the side flat stones are to be erected, and the side top line is straight, smooth and smooth. There are no high and low teeth, no upper and lower platform, internal and external wrong teeth in the plane.

2.路边石（路沿石）必须座浆砌筑，座浆必须密实，严禁塞缝砌筑；

2. the roadside stone (roadside stone) must be built in slurry, and the slurry must be dense.

3.路边石（路沿石）接缝处错位不超过1mm；侧石和平石必须在中间均匀错缝。

3. The joint of roadside stone (roadside stone) is not more than 1 mm in dislocation; the joint of side stone and plain stone must be uniform in the middle.

4.路边石（路沿石）侧平石应保证尺寸和光洁度满足设计要求。外观美观，对弯道部分侧石应按设计半径专门加工弯道石，砌筑时保证线形流畅、圆顺、拼缝紧密。弧形侧石必须人工精凿后抛光处理。

4. side stone (roadside stone) side stone should ensure that the size and finish meet the design requirements. Beautiful appearance, the curved part of the side stone should be designed according to the radius of special processing curved stone, masonry to ensure smooth line, smooth, tight joint. The arc side stone must be cleaned after polishing.

5.路边石（路沿石）后背应还土夯实，夯实宽度不小于50mm，厚度不小于15mm。

5. the roadside stone (roadside stone) should be compacted back to the earth. The width of the road is not less than 50mm, and the thickness is not less than 15mm.

6.路边石（路沿石）勾缝：勾缝时必须再挂线，把侧石缝内的杂物剔除干净，用水润湿，然后用1：2.5水泥砂浆灌缝填实勾干。

6. Curb stone (curb stone) joints: when the joints must be hooked again, to remove the debris in the side stone joints clean, wet with water, and then 1:2.5 cement mortar filling joints to dry.

7.路边石（路沿石）勾缝、安砌后适当浇水养护。

7. roadside stone (along the road stone) joint, after building, proper watering and maintenance.