Fire retardant coating for bridge

Abstract

The invention discloses a fire retardant coating for a bridge. The fire retardant coating is characterized by being prepared from the following raw materials by weight: 10 to 20 parts of a resin, 5 to 12 parts of expanded perlite, 5 to 10 parts of aluminum hydroxide, 3 to 6 parts of diatomite, 10 to 15 parts of ammonium polyphosphate, 3 to 5 parts of nanometer magnesium hydroxide, 5 to 10 parts of titanium dioxide, 10 to 15 parts of graphite powder, 2 to 4 parts of zinc borate and 2 to 6 parts of potassium tripolyphosphate. The fire retardant coating for a bridge provided by the invention has the advantages of good fire retardation and heat insulation performances, good bonding force, high strength, small possibility of coming off, storage stability, convenient construction and capacity of enduring high and low temperature cycling.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a fireproof coating for bridges. Background technique [0002] With the rapid development of highway and railway construction, bridges have become common buildings in modern traffic engineering. With the development of the economy, the scale of my country's traffic engineering construction is getting larger and larger, and the number of bridges is increasing. For example, due to the special structure of tunnels and sea-crossing bridges, the traffic density is high. Once a fire occurs, it is very difficult to extinguish the fire, and the structure is mostly reinforced concrete, which is not resistant to high temperatures. Cracks and collapses will occur at high temperatures. Existing coatings use relatively single base resin, or modify the resin, although it may help in fire performance, but it causes an increase in production costs and an increase in preparation time. Contents of the i...

AI Technical Summary

Problems solved by technology

Existing coatings use a relatively single base resin, or modify the resin, although it may help...