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CASfire
Products >> steel structure coating applicable to BS476-21 fir
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steel structure coating applicable to BS476-21 fir
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| Related proudcts |
bs476-21, |
| Specifications |
BS476-21 |
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What is steel structure coating?
Fire-retardant coating for steel structure is a coating used in construction projects. Steel structure usually loses its bearing capacity and undergoes great deformation at a temperature of 450-650℃, causing bending of steel columns and steel beams. As a result, it cannot continue to be used due to excessive deformation. Generally, the fire resistance limit of unprotected steel structure is about 15 minutes.
? According to the fire prevention mechanism, steel structure fire retardant coating is divided into:
a) Intumescent steel structure fire retardant coating: The coating expands and foams at high temperature to form a fire-resistant and heat-insulating protective layer of steel structure fire retardant coating. The industry is used to use the old standard name, that is, the intumescent fire retardant coating is a combination of ultra-thin structural fire retardant coating and thin steel structure fire retardant coating.
b) Non-intumescent steel structure fire retardant coating: The coating does not expand and foam at high temperature, and it itself becomes a fire-resistant and heat-insulating protective layer of steel structure fire retardant coating. The industry is used to use the old standard name, that is, non-intumescent fire retardant coating is a thick fire retardant coating.
Steel structure coatings can be tested in accordance with BS 476-21, depending on the product's scope of application as specified in BS 476-21.
?Refer to BS 476-21 Product range:
BS476-21 is mainly used to evaluate the fire resistance of load-bearing building materials under high temperature conditions. It is mainly used to ***ermine the load-bearing capacity, integrity and thermal insulation of beams, floor materials, ceiling materials and walls exposed to high temperature and high pressure conditions within a specified time.
BS 476-21 Standard Name£º
BS476-21: Fire test on building materials and structures-Part 21: Method for ***ermination of the fire resistance of load bearing elements |
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CASfire
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Rebecca Zhang |
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8F Building 4, No.255 South Duiying Road, Jimei, |
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361000 |
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18064462472 |
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