Fire Protection Coatings for Indoor Concrete Surfaces
Like steel, concrete does not burn and belongs to the Class-A building materials. However, the high heat input resulting from the fire leads to a reduction in the strength and rigidity of the concrete, so that explosive spalling can occur, especially with high-strength concrete mixtures, up to the collapse of the structure. A major factor in the service life of a building is the influence of the thermal conductivity on the load-bearing capacity of the building material. This is significantly lower for concrete than in the case of pure steel structures.
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