✦ core advantages of precast buildings: environmental protection ✦ compared with traditional buildings, the core advantage of precast buildings is to reduce pollution and emissions.

Although the traditional solvent based coating can meet the anti-corrosion needs of steel structures, it contains a large number of volatile organic compounds, which will cause harm to the surrounding environment and construction personnel in the process of use, does not meet the requirements of national environmental protection policies, and the material composition is flammable and explosive, which is neither environmental protection nor safe.

Building materials and processes have undergone repeated iterations and upgrades, and a new building form – precast building has been born.

In 2018, the highest carbon emission in China’s building materials production stage was 2.72 billion tCO2, accounting for 28.3% of the country.

It is an inevitable trend to use water-based anticorrosive coatings instead of solvent based coatings.

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However, steel structures are prone to corrosion in air or humid environment.

However, the production of steel, cement, aluminum and other building materials is accompanied by high emission and high pollution.

As we all know, the construction industry, as an important pillar industry of China’s national economy, has grown with China’s huge economic growth.

Introduction today, scientific and technological progress has driven the rapid development of modern construction technology.

According to the estimation of experts, the carbon emission of various precast buildings in the construction stage can be reduced by about 20% compared with that of cast-in-situ; In the whole life cycle, due to the use of new materials, carbon emissions can be reduced by nearly 40%.

It is one of the development trends of China’s construction industry and is of great significance to promote China’s construction industrialization.

The same is true during the construction operation phase.

In terms of performance, the paint film of water-based coating has unique elasticity and ductility, and can withstand the frequent changes of thermal expansion and cold contraction without cracking and falling off, thus playing the long-term and stability of the protective function of steel structure placed in the natural environment.

In response to the development of society and the requirements of the environment, the production units that took the lead in using water-based coatings not only tasted the sweetness from optimizing the coating quality and reducing the production cost, but also optimized the coating environment and won the praise of the society, which also led to the demand for water-based coatings.

Such corrosion is easy to cause stress concentration, reduce steel quality and performance, and seriously affect the stability and safety of the structure.

According to the data of China Building Energy Consumption Research Report (2020) issued by the energy consumption special committee of China Building Energy Conservation Association.

In the market, responsible and responsible enterprises are needed to develop and produce waterborne coatings that can meet the anti-corrosion needs of cast steel structures.

In terms of the environment of steel structure coating, whether it is a professional coating company or a steel structure factory with coating business, it has been plagued by serious environmental pollution and personal injury for a long time.

For the demand of human health and environmental protection, more and more public venues, steel structures, grid and other metal components required by public facilities, the application of environmental friendly water-based coating has become the only choice, which can not be replaced by other paint coatings.

About 90% of them come from the production stage of steel, cement and aluminum.

✦ cast steel structure drives the demand for waterborne coatings ✦ cast steel structure has high degree of industrialization, fast construction speed, short construction period and fast project capital turnover.

The coating steel structure occupies a large area of the workshop or site, and the harmful substances and irritant gases diffused by the traditional paint affect hundreds of meters and kilometers around.

Wire Lifting Loop

It can be said that precast building is the only way for traditional buildings to transform into green buildings, and it is a crucial link to achieve the goal of double carbon.