How to cover concrete after pouring

To protect the concrete screed at low air temperatures in winter, covering materials such as mats for covering concrete are used at construction sites. 

The covering mat consists of materials such as tarpaulin, foamed polyethylene and polyethylene film. The tarpaulin, which is used for sewing mats, is a heavy material with a density of 465 g / m, consisting of thick jute and cotton threads.

• This material has excellent wear resistance. In conditions of sudden temperature changes, it withstands mechanical damage, has a high degree of hygroscopicity.Foamed polyethylene is a material made of polymerized ethylene having a high density.
• According to its technical characteristics, it is characterized by low moisture permeability, environmental friendliness, and resistance to temperature changes. It is used as a thermal insulation material.Polyethylene film with a thickness of 150 microns is characterized by maximum strength and elasticity, as well as resistance to impact, is also a heat-insulating material and has an operating temperature from -50 ° C to 60 ° C.

• In the summer, or in the off-season, at an air temperature of up to 3 ° C, a construction film is used at construction sites, which protects the concrete screed and takes care of the concrete.

It is necessary that the thickness of this material be above 200 microns.

In windy weather, the drying of concrete is much faster. The drying rate is affected by the humidity level and temperature regime. If there is no possibility of constant humidification, the concrete is covered with a polymer construction film. At the same time, the number of joints should be minimized.

Main characteristics of construction polyethylene film:endurance

•  
• tightness 
• ease of use
• protection against condensation and the external environment
• low cost

These materials for the protection of concrete in winter and summer will help to continue the construction of monolithic objects without much difficulty.