One of the main problems of wood as filler in the production of composite materials based on mineral binder is "cement poisons". Article presents the results of research of the processes of "cement poisons" removal from wood raw material for the production of cement-bonded particleboards. In the research process the treatment of wood raw material was carried out in two ways: by boiling of the crushed wood and by ultrasonic treatment in water. It has been found that ultrasonic treatment significantly intensifies and increases the extraction of water-soluble sugars and, thus, causes an increase of the strength characteristics of cement-bonded particleboards. The conducted research shows the possibility of improvement of the technology of production of cement-bonded particleboards with the aim of improving their performance without significant capital investment.
According to modern standards, all courtyard, school and public playgrounds on which gaming equipment is installed must undergo tests of shock absorption of the surface under and around the equipment to prevent serious injuries to the child. In this regard, widely spread coatings on the basis of rubber chips. However, they not only do not meet the aesthetic requirements, but can also worsen the environmental situation when operating indoors. The paper describes a method for producing composites from wood flour and a silicone binder. The effect of wood meal content on the water absorption of composites as well as the effect of silicone content on the density of the results of the research showed that an increase in the content of wood flour significantly increases the water absorption of the resulting composite, that the composite material obtained with the addition of filler from wood meal, the values of the maximum and minimum elastic moment increased, since the presence of fillers imparts a restriction on the deformation of the composite, and, consequently, the composite becomes harder and harder. As a result of the studies carried out, it can be concluded that the use of silicone as binder and shredded wood waste as a filler makes it possible to obtain good quality elastic flooring with high aesthetic, operational and environmental properties.
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