国产精品美女久久久久av超清_法国空姐电影在线_国产999久久久_女仆男又爽又黄免费女仆视频_www黄色网址_午夜的福利_国产内射爽爽大片_污污视频在线_搞中出视频_麻豆精产国品_一二三精品_手机电影在线观看_日韩一区二区三区视频在线_乱老熟女一区二区三区_亚洲欧美丝袜中文综合

For what should fireproof paint coating inspection

For what should fireproof paint coating inspection

     For fireproof paint coating, field supervision engineer what should acceptance?

     1) There should be fire retardant coating grassroots dirt, sediment, oil and other contamination, waterproof paint coating should be complete and not tainted painted, painted by mistake, hollowing, punch, laitance, chalking and other defects.

     2) After the thick coating-retardant coating layer hardened surface cracks should not be greater than 0.5mm. Thick coating fireproof paint coating thickness of 80% and above, the area should meet the design requirements, a thin coating fire retardant coating grain production bases loaded thickness shall meet the design requirements, and the thickness of not less than 85% of the design requirements in order to pass.

     3) current national standards should be "fireproof coating materials building components performance test method" GB9978 inspection, the compressive strength and adhesion performance test shall be consistent with existing national standards "fireproof coatings application of technical regulations" CECS24: provisions 90 .

     4) fireproof paint before painting the design requirements or existing national standards for steel surface rust, decontamination and make anti-rust primer coating.