The article discusses issues related to the study of heat generation of cements used in the construction of a bridge across the Kerch Strait. This problem seems to be important because of the construction of the mentioned object in conditions of a dry hot climate. The study was conducted with the use of modern information and analytical systems in real time, allowing obtaining results close to real conditions. On the basis of comparative analysis of the calculation and practical measurement of heat the main conclusions of the work were done, recommendations on the use of cements of various types in the construction of the bridge Kerch and other similar extra-curricular facilities that are included in the basis of the developed technological regulations for the production of preparatory, reinforcement, formwork and concrete works in circumstance of year-round construction.
The purpose of the article is to find the rational use of waste formed in the course of production of heat-insulating plates on the basis of foamed polyisocyanurate, together with gypsum binder. Some tests were carried out to determine the thermal conductivity and strength of the obtained material, the estimation of their characteristics, the analysis of efficiency and needs of the final product in the market of building materials is given. It was established that when gypsum binder and additives are used together the result is a material with the best initial indicators of heat insulation and strength. The results of research showed that at the optimum composition of the gypsum and additives the material is not inferior to the individual indicators of drywall and gypsum. Board which proves both its efficiency and its need for construction.
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