Simulation modeling of winter concreting of wall construction

Building constructions, buildings and structures

There are many technologies of winter concreting, both in domestic and foreign practice. With a large selection of options for warming concrete, used for various design systems and environmental conditions, the method of heating by wires is currently the most common. Analysis of modern methods of heat treatment of concrete shows that the use of heating wires allows the supply of heat directly to concrete in the required volume at each stage of its maintenance. This helps to optimize the process of electric heating, and also affects the rate of temperature rise and cooling of concrete. In this paper, modeling is considered with the use of modern software-computational complexes capable of solving the problem of heating concrete at the stages of its aging. One of the complexes designed to solve such problems by the finite element method is the ELCUT software package. It, together with the WinConcret add-in, is able to calculate temperature fields, build a timetable for the strength of concrete and calculate the temperature deformation from the heating of building structures. In the framework of the work, modeling of the problem of warming concrete of a monolithic wall with a heating wire was carried out. The problem of the distribution of temperature fields over the section of the monolithic wall structure and the strength of concrete has been solved. In order to accelerate the hardening of concrete, it is suggested to use, for example, a quick-setting cement or a heating casing