The most popular two standards related to architec

2022-07-26
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The preparation and revision of two standards related to architectural coatings will be completed in 2017

recently, the Ministry of housing and urban rural development announced the formulation and revision of engineering construction standards in 2016. Last month, this project was listed in the Minhou technological transformation project plan. The product standard of the Ministry of housing and urban rural development "flame retardant coating for building wood structures" declared by the wood conservation and development center, Northeast Forestry University and China Wood Protection Industry Association is planned to be completed in December 2017, while the product standard "inorganic building coating for exterior wall" declared by China Academy of Building Sciences and Chengdu Lingyue coating Co., Ltd. is planned to be completed in June 2017

of course, the cheaper the better

the newly formulated product standard of fire retardant coatings for building wood structures aims to standardize the production of enterprises, protect the safety of ancient wood structure buildings in China and promote the healthy development of the whole wood structure industry today. At present, the annual construction volume of wood structure projects in China has exceeded 3million square meters, but the fire resistance rating of wood is low and the fire hazard is large, so it is necessary to carry out necessary flame retardant treatment. At present, technologies such as flame retardant agents and flame retardant coatings are mainly used for wood flame retardant. In gb/t technical specification for production of flame retardant wood and flame retardant wood-based panel samples with one end clamped in the upper collet, the wood used for wood structure construction is pressure impregnated with flame retardant agents to make the wood reach a certain fire resistance grade, while the wood surface is painted with flame retardant coatings. When the coating meets fire, the coating expands and foams to form a uniform honeycomb carbon layer, It can delay the spread of the fire within a certain period of time and buy valuable time for fire fighting. According to the coating special committee of the Chinese society of chemical industry, many problems have occurred in the application of flame retardant coatings in recent years. Due to the lack of corresponding product standards, the product quality produced by the enterprise is uneven, and the phenomenon of cracking and falling off is easy to occur in use, resulting in the wood structure failing to achieve the effect of delaying combustion. The new standard of fire retardant coatings for wood structures will mainly stipulate the terms, definitions, classification, marking, requirements, test methods, inspection rules, etc. of these products. The standard is applicable to all kinds of fire retardant coatings for wood structures

in addition, the current jg/t inorganic architectural coatings for external walls specifies the technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of inorganic architectural coatings for external walls of buildings. The standard is applicable to inorganic architectural coatings for external walls with alkali metal silicate or silica sol as the main binder. The construction methods of brushing, spraying or rolling are adopted to form a thin decorative coating on the surface of external walls of buildings. The main revised contents of the standard inorganic architectural coatings for exterior walls include: adding terms and definitions; Add the classification and requirements of inorganic primer and interior inorganic architectural coating; Modify the test methods of inorganic architectural coatings for exterior walls, etc

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