INVESTIGATION OF CHIP CEMENT BLOCKS TO DETERMINE THE DEGREE OF THERMAL IMPACT ON FIRE BY INFRARED SPECTROSCOPY

Different types of cementing agents are used in the manufacturing of inorganic structural and finishing materials using a non-firing method. Cement is one of the most common. Modern technologies are aimed to improve the exploitative properties of building materials, such as heat and sound insulation, environmental friendliness, as well as reducing construction costs. Chip-cement block is a high-tech composite material of a new generation, which is currently becoming increasingly popular in Russia and around the world, and it is most often used in the construction of low-rise houses, cottages, i.e. mainly suburban housing projects. However, this category of objects has a fairly high probability of fires. The article presents results of structure and composition changes analysis in the composite material based on a woodchip-cement mixture during heating, as well as a quantitative assessment of thermal damage degree. Infrared spectroscopy was chosen as a research method, as it is the most informative for studying various types of materials in fire-technical examination.