金属罐底沥青砂垫层的施工方法,各单位不尽相同,由于施工方法不当,沥青砂垫层有时会产生贯穿性裂纹,造成罐底板的腐蚀,大大降低了罐的使用寿命。这是质量检验评定标准(SYJ_n4025-88《石油工程建设质量检验评定标准——建筑工程篇》)所绝对禁止的。 1 沥青砂垫层的施工方法金属罐沥青砂垫层的施工程序如下: 砂基层验收——放线——砂子过筛烘干——沥青熬制——计量配比——搅拌炒制——沥青砂铺设。 Metal tank bottom asphalt sand cushion of construction methods, the units vary, due to improper construction methods, asphalt sand cushion sometimes produce through cracks, resulting in tank floor corrosion, greatly reducing the service life of the tank. This is the quality inspection and evaluation standards (SYJ_n4025-88 “Petroleum Engineering Construction Quality Inspection Evaluation Standards - Building Engineering articles”) is absolutely prohibited. 1 Asphalt sand cushion construction method Metal tank asphalt sand cushion construction procedures are as follows: sand-based inspection - pay-off - sand sieving drying - asphalt brewing - metering ratio - stir fry - Asphalt sand laying.