METHOD OF CALCULATING THE STRENGTH OF HEATED ROAD COVER

Abstract

The subject of the research is the construction of a multi-layer road heating coating, which can be used in international road corridors for the safety of their winter maintenance. Standards and classification of these con-structions are absent, as well as and methods of their calculation are not investigated. Thus, the research in this sphere may be considered as timely and perspective. The subject of the research is the construction of the multi-layered coating with heated surface layers, which can be used in hotel and catering industry to prevent snowdrifts, slipperiness and ice-crusted ground on its surface. Subject of the research is tense strained condition of the coating with heated surface layers. The objective of the research is connected with the improvement of the engineering methods of calculating tense strained condition of the coating with heated surface layers. The model problem to calculate multi-layered coating with heated surface, which is considered as multi-layered cushion based slab, is solved. Model of the elastic homogeneous semi space is used for the above men-tioned slab. The construction consists of the monolithic coating layer of the fibrous electro conducting concrete, that under the influence of heat flux generated by electric current heats up and heats the surface layer of a typical pavement - macadam-mastic asphalt concrete. Electric current is supplied to the carbon conducting grid that is an underlying layer of fibro electro concrete. Under the net for the isolation of cement-concrete slab is a layer of heat insulation. Pre-heat problem was solved for the heating system and confirmed thermos-effect required for heating surface coating of + 2.0oC to 11oC at ambient temperature -20 oC.