Water-repellent (hydrophobizing) impregnation for concrete is a composition that allows you to protect the material from the negative effects of the environment, in particular, from excessive absorption of moisture. Being porous, concrete is in great need of such processing. It increases its water resistance and frost resistance, extends the service life of any concrete surface or building structure.
What is waterproofing for?
The main task of using water-repellent impregnations is to protect concrete structures from moisture penetration, which can eventually destroy it. By itself, concrete does not withstand the effects of aggressive chemicals, precipitation, industrial gases, which destroy its structure from the inside. The strength of concrete is determined by the characteristics and amount of cement, sand and crushed stone, the water-cement ratio and the chemical processes that occur during the hydration of cement.
Hydration refers to the binding of water and components of the cement powder. Because of it, a mixture with the consistency of a gel is formed in the pores of the concrete. The pores also contain air and water. All this negatively affects the quality of concrete.
Accelerators and retractors.
Considering modifying additives, a few words must be said about compositions that increase the rate of hydration of cement stone. In cold weather, the concrete mixture hardens very slowly, and in frost this process stops. If you do not add a hardening accelerator to the water, then it will be impossible to work with concrete at sub-zero temperatures. An alternative option is electric heating of the mixture, but this option is rather complicated and costly.
Slowing down the rate of maturation of the concrete mix with stearic acid Malaysia is necessary when transporting it over long distances. Without the use of retarders, sections of the foundation that were poured earlier than others begin to harden, forming joints that weaken the structure.
There use to be a direct relationship between the concrete density and its strength features. The sealing additive reduces the number of pores in concrete by filling micro voids between its particles. Along with an increase in strength, an increase in the water and frost resistance of the structure occurs (the complex effect of improving the properties).
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