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松江桥人行道下面有电缆,所以人行道铺装在装配板上。原铺装的砂浆厚度是3公分,下面有油毡纸防水层。施工时,考虑到砂浆簿,防水层与装配板不易结合,年久必将裂于剥落,难以保证质量,于是取消了防水层,并改用沥青铺装。但人行道上有绿石、地复线和灯柱,且竟度只有2.25公尺,不能用压路机辗压;经过试验,采用了摊铺沥青。摊铺沥青铺装是用碎石(或卵石)、砂、矿物质粉末和石油沥青在热的状态下拌合成混合料摊铺在底层上,不需要经过辗压。从施工和使用情况来看,结果是比较好的,不但降低了造价,井缩短了施工日期。现在简单介绍如下。
Songjiang bridge under the sidewalk cable, so the pavement pavement in the assembly board. The thickness of the original pavement mortar is 3 cm, there is linoleum waterproof layer below. Construction, taking into account the mortar album, waterproof layer and the assembly board is not easy to combine, a long time will split in the spalling, it is difficult to ensure the quality, so canceled the waterproof layer, and switch to asphalt pavement. However, the sidewalk with green stone, to double the line and the lamppost, and the only degree of 2.25 meters, can not use roller rolling; after testing, the use of paving asphalt. Paving asphalt paving is the use of gravel (or pebbles), sand, mineral powder and petroleum bitumen in the hot state of mixing into a mixture spread on the bottom, without going through rolling. From the construction and use of the situation, the result is better, not only reduce the cost, and shorten the construction date. Now briefly introduced below.