Coating general knowledge: fire retardant coating for steel structure

Core tip: there will be a variety of problems in the construction engineering, and the problem of steel structure fire protection is increasingly prominent The problems in the selection, durability and construction quality of fire retardant coating for steel structure also bring some difficulties to the fire prevention supervision There are many kinds of fire prevention measures for steel structure In the past, cast-in-place concrete shell was used, fire-retardant barrier was set up with refractory bricks, non combustible materials such as gypsum board were used to cover or hollow pipes were filled with water for cooling At present, steel structure is protected by spraying fire retardant coating on steel structure Due to the good fire and heat insulation performance of this measure, construction is not limited by structural geometry Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Paint Home News: there will be a variety of problems in the construction engineering, and the problem of steel structure fire prevention is increasingly prominent The problems in the selection, durability and construction quality of fire retardant coating for steel structure also bring some difficulties to the fire prevention supervision There are many kinds of fire prevention measures for steel structure In the past, cast-in-place concrete shell was used, fire-retardant barrier was set up with refractory bricks, non combustible materials such as gypsum board were used to cover or hollow pipes were filled with water for cooling At present, it is more to protect steel structure by spraying fire retardant coating on steel structure Because of the good fire and heat insulation performance of this measure, the construction is not limited by the structure geometry, generally does not need to add auxiliary facilities, is easy to implement, and has a certain aesthetic decoration effect, which has been widely used 1、 The durability of fire retardant coating for steel structure lacks scientific evaluation on the service life of various types of fire retardant coating in engineering environment, and the manufacturer of fire retardant coating cannot provide the service life and replacement cycle in different service environment in the product description No matter what kind of fire retardant coating, the fire endurance given in the test report is the test result before use And after several years of coating, is the fire performance of the fire retardant coating still effective? The maintenance of fire retardant coating is not simply repainting If repainting on the base of old fire retardant coating can meet the technical performance requirements? How to overcome the construction difficulty of refreshing fire retardant coating, especially for concealed works? These are all subjects that need further study The use of fire retardant coating for steel structure is in the attitude of "once and for all" It is an urgent work to study the durability of fire retardant coatings for steel structures It is necessary to establish evaluation standards and methods for the durability of fire retardant coatings, so as to determine the period or years of replacement or maintenance of fire retardant coatings scientifically 2、 The use and management of fire retardant coating for steel structure there are many domestic manufacturers of fire retardant coating for steel structure, with various varieties and no unified technical standard The varieties of ultra-thin fire retardant coating for steel structure and outdoor fire retardant coating for steel structure with excellent performance are few, which should be used with great caution The type of coating must go through the design unit, construction unit, construction unit and fire protection unit Approved by the Department Fire retardant coating should also have long-term functionality with the long-term use of buildings, so after the fire retardant coating construction acceptance, attention should also be paid to maintenance management 1: Avoid other operations or accidental impact, wear, rain and pollution damage Regularly observe the integrity of the coating, and the coating shall not fall off 2: For the intumescent fire retardant coating, the foaming performance of the fire retardant coating shall be determined regularly for the prefabricated test pieces in the construction When the foaming performance of the fire retardant coating is lost, corresponding measures shall be taken Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,