What Properties Does The Use Of Fiber In A Dry Mix Give

2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54

• Concept
• Properties and qualities
• Features:
• Underfloor heating with fiberglass
• Fiber consumption
• The cost

At all stages of the installation of a floor screed, problems may arise associated with its subsidence or cracking. In addition, such a floor during operation can deform due to significant temperature changes, from winter to summer and vice versa. To in most cases this all could be avoided, use fiber for floor screed made of polypropylene. It has a sufficient number of positive features that distinguish it from other possible additives in ready-made mixtures.

Concept

As mentioned above, the fiber is based on polypropylene, which belongs to artificial materials. Each fiber can have a different length, minimum 3 mm and up to 18 mm. Moreover, their diameter is about 20 microns. So that the material used can easily penetrate into the building mixture, become a single whole, an oily substance is applied to the surface of the fibers.

It completely replaces the reinforcement with other screed elements. The cement becomes more tenacious, plastic and is able to last much longer. Of course, steel reinforcement is taken as an alternative. But for a large area of the premises, it is very problematic and quite costly, the cost will increase significantly. Fiber distribution is carried out completely throughout the mixture.

Properties and qualities

If a semi-dry floor screed with fiberglass is performed, then such a solution will receive a large number of positive points, among which the most basic ones can be distinguished:

• Long service life. The "rough" version of the floor itself becomes very durable and reliable, protected from external factors, including temperature conditions.
• High and low temperatures have no effect on the poured solution. The ability to resist deicing salts can also be distinguished here.
• The solidification process takes a short time. Already after 12-16 hours, you can walk on the base of the floor, perform any kind of finishing work indoors. 3-4 days after that, you can start laying the flooring.
• Resists moisture as much as possible. Water permeability is reduced to the limit.
• Such a screed is not afraid of mechanical influences, it does not wear off over time.
• After completing the work, there is no sedimentation of the "rough" floor, no cracks, chips or delamination of the material appear.
• The work is carried out very easily and simply due to the fact that fiberglass gives the finished solution flexibility and plasticity.

• Quite low cost of this additive in the mixture.

  

After completing all types of work, there is no need to worry that the fibers will begin to corrode. They remain in their original form for a long time of operation. Fiber can also be used in special equipment, which is a mortar pump. The result is a perfectly smooth surface that does not require any additional measures.

The polypropylene used independently spreads throughout the entire thickness of the finished mixture, which does not consume additional forces and funds for this process. This noticeably distinguishes it from steel mesh, which is used as a reinforcing element.

Floor screed fiber has practically no drawbacks. They are kept to a minimum. And they can arise only due to the fact that not certified raw materials were purchased for work. Over time, it loses its properties, and in addition, it can release various chemicals into the environment that can harm human health. High-quality fiber completely eliminates these moments. Here you should pay attention to what is bought to perform floor installation.

As a result, you don't even have to think about whether to add fiber to a semi-dry screed. There is only one answer - definitely.

Features:

Among the peculiarities of such a versatile material, one can single out the fact that the fiber for screed floor heating can easily "get along" with other possible additives that are added to concrete.

But here it is also important to pay attention to the introduction of fiber into the solution in portions, and not all at once. This will produce the desired result. It will not be superfluous to initially mix it with the ready-made floor mixture, and only then add the required amount of water.

The quality of the subfloor will depend on the amount of bonding material used. The more you add, the better the result will be.

Underfloor heating with fiberglass

There is no problem to arrange a warm floor in the house. And the fibers added to the dry mix for the screed will not be an obstacle here. The main thing is to do everything according to the technology so that negative aspects do not appear in the future. If it is not possible to do it yourself or there are doubts about the final result, then it is better to seek help from specialists. They will perform the work, and in the future it will be possible to make quality claims against them.

When installing a warm floor, it is necessary to focus on its specific version. It can be cable, water, electric, infrared heated floor. Fortunately, there are sufficient technologies for its arrangement. In this case, thermal insulation is very important, which will not allow heat to escape to the basement or to the neighbors. This layer is laid under the screed. Further, the heating system is carried out, all the necessary communications are laid, and only then you can begin to install the screed using fiberglass in the dry screed.

Fiber consumption

With regards to mixing the composition of cement together with fiberglass, then there are a sufficient number of options. Each of them is broken through by a specific person. But still, one should proceed from the fact that something is chosen that is optimal for the job. There is one very good rule here: the more fiber is used in the solution, the higher all the declared qualities of the final product will be. It is very important to know how much fiber to add to the underfloor heating screed.

There are minimum limits, from which you cannot deviate in any case. More is possible, but not less.

For each cubic meter of solution, fiber fibers must be used:

1. 300 grams gives plasticity to the cement mortar. In addition, in this form, it is able to evenly distribute over the entire surface of the sub floor without unnecessary effort.
2. 500 grams. The properties of concrete become even higher, the strength increases.
3. More than 800 grams - the highest possible result is obtained in terms of quality characteristics. The cement material itself becomes almost as useful as the fiber itself, serving as an additive.

But even this is not worth dwelling on, but proceed from what is required to get the result. In some cases, depending on the properties of use, the mortar can be made with less fiber. But immediately it is worthwhile to understand that problems may arise with the negative manifestations of the prepared cement mortar.

The cost

The most demanded question is the cost of using fiber in the finished mixture. Here one should proceed from what the fibers themselves will be intended for.

After all, the length of the fiber, which can be 6, 12 or 18 mm, will also depend on this. Packing is usually carried out in propylene bags, with a total weight of 18 kg. It includes 20 fiber bags with 900 grams each.

Since the retail cost of 1 kg of material is about 200-250 rubles, one bag can be purchased for about 3600-4000 rubles. The price will decrease if the batch of goods increases. This becomes very beneficial for construction companies and firms involved in renovation. In any case, doing the work yourself will save almost half of the cost of the entire repair.

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