Analysis of heat-insulating properties of rubber crumb as a constructive layer of monolithic conversion from self-compacting concrete
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2018, Vol 1, Issue 73
Abstract
The problem of environmental pollution is important and relevant throughout the world. The main cause of pollution is resource-intensive technologies of processing and use of raw materials, which lead to a huge accumulation of waste and the need for their disposal. One of such production waste is rubber crumb, which has high strength, thermal insulation, sound insulation and other characteristics. This article considers the expediency of using the rubber crumb in solving problem of the increasing of the thermal insulation properties of monolithic interfloor overlap using self-compacting concrete. The article is devoted to the analysis of the insulating properties of monolithic interfloor overlap with the using of glued rubber crumb and self-compacting concrete, as separate structural layers. Based on literature sources, the effect of rubber chips on the such properties of a concrete mixture as density, strength, ductility, shock energy resistance, deformability, shrinkage, abrasion, frost resistance, water absorption, porosity, heat and sound insulation is analyzed. The methods of production and the range of its application in modern industry are considered. To assess the impact of the using of rubber crumb as a thermal insulation layer, the heat engineering calculation was performed. In the calculation example a monolithic interfloor overlap of a residential building in Odessa was considered. The study used a numerical method. The conclusion about the effectiveness and feasibility of using rubber crumb materials as thermal insulation is made. The required minimum indicator of thermal insulation, which is regulated by regulatory documents, is carried out with the use of a layer of glued rubber crumb with a thickness of at least 0.14 m. This result is inappropriate because of the reduction in the useful volume of the premises. Therefore, it is relevant to further study the effect of crumb rubber on the insulating properties directly in the concrete mix.
Authors and Affiliations
O. , Popov, A. , Hostryk, ndelko Crnoja
Keywords
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