Increase of fire resistance of coating wood with adding mineral fillers

Abstract

The article covers all the stages of the process of fire protection: as the separation of gases, heat transfer, the swelling of the coating, which is formed during by the action of fire. To determine the fire protection efficiency in the coatings developed, studies have been carried out on determining the combustibility of wood in terms of mass loss and increase in the temperature of flue gases, and it has been established that mass loss of coated wood does not exceed 3% and the temperature does not exceed 160°C. The results of the determination of the protection efficiency for the system have shown that under the influence of the high-temperature flame of burning of the material and the loss of the mass of the coating is reduced due to the formation of high-temperature compounds, while the time to reach the limiting temperature increases. Studies on determining the quality of fire protection wood treatment by coating showed that the rate of cooking for a rough sample of wood was more than 2 mm/min, for fire-proof samples - did not exceed 0.5 mm/min, which makes it possible to conclude that it is advisable to use them.

Effect of a flame­retardant coating on the burning parameters of wood samples

“…This study is a continuation of the studies discussed in [1][2][3][4] where the mechanism of fire protection of organic natural materials, formation of foamed coke and reduction (5) and taken in brackets of weight loss during wood combustion are fully provided. These studies require development of full-scale test methods and study and description of wood behavior.…”

“…Wood impregnation with fire-retardants reduces formation of combustible volatile products, inhibits gas-phase flame reactions, eliminates surface combustion of carbonaceous residue and reduces rate of weight loss [1,2]. Application of coatings makes it possible to slow down material heating due to formation of a protective layer and maintain the material functions in fire for a definite period of time [3,4].…”

Determination of regularities of heat resistance under flame action on wood wall with fire-retardant varnish

“…Fireproofing with modern effective means can significantly affect or eliminate the risk of fire, by preventing the free access of oxygen, which contributes to the destruction of wood and acceleration of the combustion process [1,2]. In addition, the coating allows slowing down the heating of the material due to the formation of a protective layer and retaining its functions in case of fire for a specified period of time [3].…”

Estimation of fire protection efficiency of articles made from reed under an external action of gasoline flame

“…Recently, such means have become widespread that are capable of forming an insulation layer at the surface of a construction structure, which greatly reduces the processes of heat transfer to the material [4].…”