Oktay, HasanYumrutaş, Recep2021-11-152021-11-152018Oktay, H., Yumrutaş, R. (2018). Comparison of the thermal performances of concretes containing waste rubber for energy efficient buildings. 4th International Conference on Environmental Science and Technology (ICOEST), 19-23 September 2018, Kiev, Ukrainehttps://hdl.handle.net/20.500.12402/3982Due to the rapid depletion of available sites, the disposal of waste tires is becoming a serious environmental problem day by day. Assessment of waste rubbers in concrete is an innovative solution that meets both the challenge of the tire disposal problem and a demand for improved thermal performances of structural materials for energy efficient buildings. Therefore, in this study, an investigation is performed both to obtain new concrete types by using waste rubbers with high thermal insulating characteristics and to compare the thermal performance of those concretes with conventional ones. For this purpose, different types of concrete samples were prepared with a constant water-cement ratio, and normal aggregates replaced by rubber aggregates at different volume fractions between 0% and 60% of the total aggregate volume. In the experiments, all mechanical tests were conducted and the hot disk method was used to establish thermal property values of concrete samples. In order to determine the most suitable concrete samples, heat flows through the produced samples are calculated using a program developed in MATLAB. Calculation method for the heat flow is based on solution of transient heat transfer problem for the multilayer structures. The program is executed to calculate hourly heat gain values for these samples over a period of 24 h during design day for Batman, Turkey. The results indicated that the maximum reduction in heat gain value was obtained as 50.6 % for RC60 wall with commonly used thickness of 20 cm corresponding to conventional concrete.eninfo:eu-repo/semantics/openAccessAttribution-NonCommercial-ShareAlike 3.0 United StatesConcreteWaste RubberHeat GainThermal And Mechanical Properties.Conference Object