Wood-Cement Composite and its Reinforcement with Wooden Bars

Abstract

The task of reducing the negative environmental impact of industrial production and human economic activity is a prerequisite for the development of energy-saving technologies and materials based on industrial and household waste. The technology for the production of wood-cement composite materials is of great importance from an engineering point of view, as well as the technology for wood waste disposal, which has environmental attractiveness. Wood-cement composites are used as heat-insulating and structural materials. At the same time, one of the factors limiting their wide distribution is insufficient bearing capacity. In the course of the research, the strength indicators of building blocks made of wood-cement composite were determined, provided they were reinforced with wooden bars. The authors also concentrated on the thermal efficiency factors influenced by the presence of a block of reinforcing elements in the massif. The study was carried out by means of a physical experiment using Elcut software package. The resulting increase in strength during reinforcement amounted to 27 ... 31% or 3.1 ... 3.22 MPa with the initial strength indicators of the unreinforced block - 2.44 MPa. The volume of the resistance to heat transfer of the block made of a wood-cement composite during its reinforcement practically does not change. The results obtained can be used in the design and operation of building structures.