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samedi 21 octobre 2017

Insights On Concrete Waterproofing Admixture

By Stephen Nelson


It is important that concrete porosity is reduced in order to avoid its damage over time. These are measures that can be undertaken in many different ways. There are products that exist in place to make such building material composed of cement, gravel and other essential components waterproof. It is vital to use water in the making and treatment of cement but once that process is complete, an addition of water to the mixture is harmful and may cause adverse effects. Concrete waterproofing admixture are therefore used in these cases.

This building component may deteriorate with time if not properly waterproofed as the passage of water through it may deposit chemical substances and other impurities causing its destruction. There has been a production of advanced admixtures which are used to waterproof the structural building material and there have been improvements of these products as the years go by. Since there is a variety of mixtures to choose from, one can decide the one best suited for them.

A substance is fully waterproof if the movement of water through it is limited and there is an increase in the ability to withstand hydrostatic pressure. There are different methods to waterproof the building substance but some are more effective than others. In the past this procedure was done from the outside or the inside of the material by the use of materials known as sheet membranes which would mostly be inefficient and costly to repair. Nowadays construction mainly uses mixtures that make the structural building material water resistant.

These constitutive mixture systems are usually added on the mixture of cement and the other building substances required. A chemical reaction takes place within the mixture to make it more repellent to water. Unlike using sheet membranes, it reduces labor costs and speeds up the timeline of the construction project.

The use of these water repelling mixtures can function in different ways. Pore-blocking mixtures may reduce the size of the capillarity pores in the mixture or block the pores completely thus reducing capillary absorption. Hydrophobic mixtures are soluble mixtures that react to form an insoluble element that lines the capillary pores preventing water absorption.

Crystalline technology is another new method. The crystalline mixtures can be introduced into construction materials by mixing or applying it on the material surface. The chemicals contained in the mixture usually restructure the construction material and causes non-permeability against water. It may also be utilized on older surfaces in order to achieve water impermeability.

It is important to know the percentage that is needed to be added to the structural construction material in order to obtain effective results. There should be a balance in the ratio of the water added to the cement added to obtain efficient results. The resistance to water is ultimately dependent on the quality of the structural building component and effectiveness of the added mixture.

Although it may be costly to purchase such products to waterproof the building component, it is a significant method of reducing water seepage and overall damage to the building. Therefore, it is a good investment to undertake to prevent future losses.




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