Some time ago, the coming of winter was marked for builders to forced vacation.Construction sites fell silent in anticipation of acceptable weather conditions for continuation of work.How has the situation changed now?Production of the construction site does not stop even in the fierce weather, as a rule, is the construction of non-stop character, through the organization of work in shifts.

Modern technologies have questioned the views of conservatives, especially in the pouring of concrete at temperatures that were previously incompatible with a similar activity.

So whether it is possible pouring of concrete in the winter?

Many old school superintendents told what to do all you can, but the quality in such circumstances will be the mythical notion.Their reasoning is understandable, because one of the components of the concrete is water, which means when the temperature drops below freezing begins its crystallization, the mixture thickens and is the most negative way affects the process.Water when f
reezing does not allow the move until the end of the components, there is cracking and eventually get brittle komoobraznoe cover a non-load-bearing capacity, and therefore absolutely not suitable for the needs of construction.

Current trends in construction dictate their laws to cope with the stated amounts necessary to continue building throughout the year.Thanks to modern technology has found several solutions to this problem.

3 ways how to pour concrete in the winter:

  • 1 way: heating area, which takes place at the site pouring concrete.The main curing of the concrete falls on the first two days after pouring, which is why at this time should be protected from exposure to fill the place of negative temperatures.This is achieved by installing heaters along the perimeter of the site, as well as the possible need for the installation of prefabricated tents to maintain the required temperature.Power equipment used depends on the amount of concrete poured.

  • Method 2: supply of electricity to the cable laid in the basis of the flooded area.Unlike the first method, display is carried out directly by the concrete itself using special heating wires to three millimeters in diameter, i.e.Electricity fed to the cable laid in the poured concrete and it is used as a heating element.

  • 3 method: the use of antifreeze additives different concentrations.This method is based on the addition to the concrete mix auxiliary components are slowing down the process of crystallization of water.Such additives are based on mixtures of salt, for example potassium chloride or sodium chloride.The concentration of these additives in the composition is characterized by their volume in relation to the amount of water is generally within the ratio of two to fifteen percent.The latter depends on the grade of concrete and the weather conditions.Concrete made with the use of such additives is called the cold concrete.

familiar with all methods of pouring concrete in the cold period, each well aware that the process is technically complicated and costly and accordingly it is necessary to reflect on the appropriateness before applying.
Author: Eugene Esipovich | View: open source