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　　山东平沿石的做法是什么？

　　What is the practice of Shandong Pingyan Stone?

　　检查和准备。检查立缘石的位置、顶标高、排水槽宽度等是否准确，清理排水槽，并更换损坏或不准确的部件。

　　Check and prepare. Firstly, check whether the position, top elevation, and width of the drainage ditch of the curb are accurate, clean the drainage ditch, and replace damaged or inaccurate components.

　　放样和排砌。根据平沿石的平面位置和顶面标高进行放样，然后依次排砌。

　　Setting out and laying out. Set out according to the plane position and top elevation of the flat edge stone, and then arrange the masonry in sequence.

　　安装。使用M10水泥砂浆连接相邻平沿石，确保接缝齐平，缝宽为1cm。

　　Installation. Use M10 cement mortar to connect adjacent flat stones, ensuring that the joints are flush and the width of the joints is 1cm.

　　灌缝。采用干硬性水泥砂浆灌缝，其抗压强度应≥10MPa，灌缝时要饱满嵌实，厚度均匀。平石勾缝应为凹缝，深度为0.5cm。

　　Fill the gap. Using dry and hard cement mortar to fill the joints, its compressive strength should be ≥ 10MPa. When filling the joints, it should be fully embedded and the thickness should be uniform. The flat stone pointing joint should be a concave joint with a depth of 0.5cm.

　　养护。新砌平石应进行湿治养护，时间≥3天，冬季应注意防冻。

　　Maintenance. Newly laid flat stones should undergo wet curing for at least 3 days, and attention should be paid to frost prevention in winter.

　　保护。在平沿石安装完毕后进行第二阶段沥青摊铺时，应注意保护平沿石，防止碾压轮边缘破坏。

　　Protection. When the second stage of asphalt paving is carried out after the installation of the flat edge stone, attention should be paid to protecting the flat edge stone to prevent damage to the edge of the rolling wheel.

　　质量检查。确保平沿石表面无缺陷，如蜂窝、麻面、石子外露、脱皮、裂纹、缺边、掉角等。

　　Quality inspection. Ensure that there are no defects on the surface of the flat stone, such as honeycombs, rough surfaces, exposed stones, peeling, cracks, missing edges, corners, etc.

　　运输和安装。轻拿轻放，避免损坏，并及时安装。

　　Transportation and installation. Handle with care to avoid damage and install in a timely manner.

　　勾缝及养护。勾缝前清理缝内土杂物，用水润湿，然后用符合设计要求的水泥砂浆填充密实。

　　Pointing and curing. Before pointing, clean the soil and debris inside the joint, moisten it with water, and then fill it tightly with cement mortar that meets the design requirements.

　　检测及二次养生。使用水平尺控制，确保埋砌稳固，顶面平整，线条顺直，曲线圆顺，缝宽均匀，勾缝密实，无杂物污染。

　　Testing and secondary health preservation. Use a horizontal ruler to control and ensure stable burial, flat top surface, straight lines, smooth curves, uniform joint width, dense pointing, and no debris pollution.

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