Are steel structures really easy to rust?

When it comes to the connection between steel structure houses and rainwater, I believe that many people think that steel structure houses will rust when exposed to water; indeed, traditional steel structure houses will soon be exposed to wind, sun and rain Rust, so it is natural for people to have some concerns about it. So, can the popular steel structure houses stand the test of the rainy season?

Let's talk about the corrosion resistance of the steel itself. The traditional steel is directly exposed to the air, and it will rust soon when it comes into contact with the rain. The selected steel is basically galvanized steel. This kind of steel is a layer of zinc and aluminum mixed coating added to the surface of traditional steel. When the surface of the steel comes into contact with the corrosion source, the zinc in the coating will be corroded first. When zinc is corroded, the aluminum exposed to the air will form a dense and stable oxide film that protects the remaining zinc layer from corrosion, and conclusions are drawn based on experiments.

Corrosion test:

Al-Zn coating performs well in salt spray test, in 5% salt spray environment:

1. Reinforcement: without any The protected steel bars rusted immediately;

2. Ordinary heavy steel: ordinary heavy steel with simple coating, which corroded severely in the seven-day experiment;

3. Light steel: only plated The aluminum-zinc steel surface is still smooth and bright, with almost no traces of corrosion.

In addition to the excellent corrosion resistance of the keel itself, the steel structure house will take various measures to isolate the keel from the outside world: a thick moisture-proof film is laid on the foundation. Double-layer waterproof asphalt is brushed on the ground, and black waterproof membrane is added to the keel for waterproofing.

There is moisture-proof breathing paper (waterproof and breathable) between the Ou Song board and the calcium silicate board, which ensures the good waterproof performance of the wall and has the ability to adjust the indoor relative humidity. Pick out 300mm-600mm eaves to drain water directly, and have special water supply and drainage pipes. The roof is covered with waterproof membranes as a whole, and the cornices are treated with special waterproofing. The roof asphalt shingles belong to the tiles with better waterproof performance in the world, and the water directly falls along the asphalt shingles as water droplets. It can achieve 360-degree moisture-proof effect.

The roof system of steel structure houses is waterproof.

Steel structure is a kind of strong vitality and tenacious structural system, which can be used in a wide range of applications. It can also be built, or even more advantageous, if it is in an aggressively steep place or where the weather is extremely bad. Therefore, it is widely used in the field of service construction, such as leisure farms, tourist attractions, private villas, clubs, garden nursery yard management rooms, private leisure rooms, etc. , which is a trusted choice.

Building Materials Technology Co., Ltd. is a prefabricated residential design, production, installation and maintenance station service enterprise. 13 years of industry experience. The 30,000-square-meter production base has a full range of products such as prefabricated buildings, integrated houses, light steel villas, container houses, prefab houses, etc. The products are widely used in cultural and tourism houses, public houses, temporary residential houses, residential office houses, etc. Four areas, hotline:,.

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