安徽钢结构浅谈钢结构防火涂料的施工注意事项发布时间：2015-12-12 9:37:44 浏览次数:745
1, in the paint construction process, must be in the front of the coating of the basic dry curing, and then after the construction. The protection mode, construction time and thickness of the coating shall be determined according to the requirements of the construction design, the thickness of each coating should be moderate, not too thick or not, so as not to affect the coating quality. In strict accordance with the coating process, in order to avoid rush period for building a security risk
2, fire retardant coating material surface cleaning should be used as a strict inspection process. Remove dust, scrap iron, rust, grease and other substances interfere with the adhesion, and good anti rust treatment material. Fire retardant paint in the bottom layer and surface coating should be appropriate, the bottom coating shall not rust steel.
3, the fire retardant coating to master the consistency of the paint, air compressor and the pressure of the spray nozzle and component of the distance. In the construction of the main observation, many spatters that the construction parameters are not reasonable, should be adjusted. The amount of diluent in the paint can not be too much, otherwise it will reduce the normal construction viscosity, paint can not be attached to the surface of steel structure.
Measuring 4, after the completion of the project can not only the thickness of the coating, it must be visually detected by coating color and coated leakage and cracks, with 0.75 ~ 1kg hammer tap coating to measure strength, 1m coating flatness detection ruler. The coating should be flat, no obvious depression, strong bonding, no powder, loose and floating pulp, the process has been removed, no leakage, no leakage, obvious cracks, etc..
5, steel structure fire protection shall be trained by the training of qualified and have the corresponding construction qualification of professional construction team construction. According to the engineering characteristics and product selection and so on to develop a strict construction plan. The physical and chemical properties of the coatings can be carried out according to the requirements of the project in accordance with the requirements of the pre engineering. In the construction of the expansion type fire retardant coatings, we should choose the different parts of the test foam properties,
6, the thickness of the coating should reach the design value, and the joints of the coating should be thickened. Spraying site requirements, component surface treatment, joint filling, coating preparation, coating times, quality control and acceptance, etc., should be in accordance with the current national standard "steel structure fire retardant coating application technology specification" (CECS24) requirements. Coating thickness should be checked by the construction side (with thickness gauge). If the crack is common and the width of the crack is large, the research and analysis of the technology is correct, and the matching ratio of the coating is reasonable.