Study of the influence of fire retardants on the flammability of building materials made of pine and aspen wood

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Abstract

The results of the study of the effect of industrial fireproofing compositions on the weight loss of samples of solid pine and aspen wood during combustion are presented. Fireproofing compositions of different brands was introduced in the form of ready-made solutions (with a consumption of 500–600 g/m2) by impregnation of test samples of coniferous and deciduous wood. It has been established that, from the point of view of mass loss during combustion fireproofing compositions have different efficiency: the best of them provided I group of fire retardant efficiency. For a comparative assessment of the effectiveness of the use of various industrial flame retardants, the method of analysis of variance was used. The hypothesis about the effect of interaction between the type of wood and the grade of OS was tested, and the significance of the influence of factors on the weight loss of samples during combustion was assessed. It has been established that the effect of interaction between the type of wood and the type of fire retardant composition is 3.51 times greater than the effect of the type of wood, which is due to both the structural differences between aspen and pine wood, and the unequal absorption of OS of different operating principles into the outer layers of the wood material. It was determined that the degree of influence of the type of wood (aspen, pine) on the loss of mass of wood material during combustion is 62.3 times less than the influence of the type of fire retardant composition.

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About the authors

A. A. Titunin

Kostroma State University

Author for correspondence.
Email: a_titunin@ksu.edu.ru

Doctor of Sciences (Engineering)

Russian Federation, 17/11, Dzerzhinskogo Street, Kostroma, 156005

A. A. Fedotov

Kostroma State University

Email: aafedotoff@yandex.ru

Candidate of Sciences (Engineering)

Russian Federation, 17/11, Dzerzhinskogo Street, Kostroma, 156005

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2. Fig. 1. Aspen wood sample treated with fire retardant Descartes (а); Akhton (b)

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3. Fig. 2. Pine wood sample treated with fire retardant «Farbitex profi for wood» after testing

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4. Fig. 3. Pine wood sample treated with fire retardant Descartes (а); Senezh Ognebio Prof (b) after testing

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5. Fig. 4. Specimen not treated with flame retardant after the ceramic tube test

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