High-Temperature Behaviour of Concrete with Polypropylene Fibres

In common conditions, concrete is subjected to a range no more severe than it will be imposed by environmental conditions. The critical cases in this paper are analysed during the exposure to higher temperatures in specific conditions, such as fire building, industrial applications, and metallurgy. Concrete thermal properties are more complex than for most materials because of the composition of different constituents and different behaviour of those materials. The behaviour is oriented in physical and mechanical properties, which are changeable in the function of temperatures. The main parameters targeted in this paper are compressive strength, and a decrease in the function of temperature to orientation at the critical point of the collapse. The microscopic analyses towards the presence of changeable structure of the concrete and loss of mass are also conducted. For different temperature cases, it is crucial to analyse the various parameters using the concrete samples already prepared with a determined mix design. Improvement is tentatively analysed using the fibres in the mix design. In the scope of output results, different codes are considered with reference to experimental results.