Composition of liquid waterproofing for concrete
Artificial stone made from cement composite is known for its high strength and durability. However, the material has a weak point - moisture. The structure of concrete is porous and cracks appear over time. These places are filled with moisture, which destroys the connecting chains between the components. And seasonal temperature changes cause an increase in voids.
The best solution to the unwanted effects of water exposure is concrete penetrating waterproofing. Rolled and coating materials create a separate barrier that fails, among other things, from mechanical loads from the outside. Means capable of penetrating the structure of the monolith become part of it. Thus, the durability of protection is calculated over a noticeably longer period of time.
Waterproofing Penetron Source 2gis.com
In addition to the beneficial properties of the hydrobarrier, the advantages include the composition of the material. Its basic component is Portland cement. This point is important, since compositions identical in binder are characterized by good compatibility and high adhesion. Mechanical resistance is provided by quartz filler, and active chemical additives are responsible for the rest. In Russia, a single standard was approved for the production of protective equipment in 2015: GOST R 56703.
Technical description of the material
The choice of protective composition is made based on the possibility of waterproofing concrete on the street and inside the building under various operating conditions. As a rule, the decision is made in favor of universal products with a long shelf life and simple installation technology. Let's consider whether the remedy for Penetron meets these and other requirements.
Internal protection of the monolith Source sdelai-lestnicu.ru
Properties of dry waterproofing for concrete
Penetron protective agents are sold in the form of a dry mixture, which is convenient for transportation and storage. The working mass is prepared in the traditional way: water is added to the mixture according to the instructions, the mass is brought to a homogeneous state using a construction mixer (drill with an attachment) for two minutes. It's simple and fast - another positive point. The main thing here is to develop the composition within half an hour. Waterproofing of concrete surfaces is carried out in a way convenient for the worker: with a brush, roller, spatula, or by spraying.
Spraying a protective composition Source ppu-complex.ru
See also: Catalog of companies that specialize in finishing materials and related work
Let's consider the properties of materials on the basis of which users highlight advantages:
- strength, durability and resistance to various operating conditions characteristic of cement;
- penetration can reach a depth of 90-110 cm;
- the ability to fill and provoke self-filling of microcracks up to 0.4-0.5 mm wide upon contact with moisture.
It is also worth noting two important points. Waterproofing Penetron only affects the absorbency of the monolith. In this case, the water resistance of concrete increases by at least 3 points to the limit value of W20. Otherwise, the properties of artificial stone after treatment with the composition remain unchanged.
Regarding the shortcomings, experts only pay attention to the consumption of Penetron per 1 m2 in two layers and the cost. However, taking into account the lifespan of the material compared to roll, slab and coating analogues, it can significantly save money on protecting the monolith. Here the indicator reaches 100 years or more, by analogy with concrete. That is, the treatment can be carried out once for the entire period of operation of concrete structures.
Failure of roll waterproofing Source roofs.club
Operating principle of penetrating waterproofing for concrete Penetron
Penetrating waterproofing for concrete actively interacts with the surface thanks to additives. They enter into a chemical reaction with cement stone, forming new crystalline bonds. As a result, the resistance of the base to acids, alkalis, salts, and water increases.
Delving into the principle of operation of the material, it is worth noting the rule of applying deep penetration waterproofing for concrete to a moistened base. This ensures the high chemical potential of Penetron and keeps the monolith low. As a result, due to osmotic pressure, the values are equalized, and the protective agent is absorbed into the concrete. The process is more effective, the wetter the surface of the artificial stone.
Penetron consumption per 1 m2
The consumption of Penetron waterproofing per 1 m2 is considered when applied in 2 layers. This is justified by the mandatory treatment of the concrete surface in two passes. The first allows you to prime and activate the composite, and the second provides reliable protection. In this case, it is unacceptable for the preliminary layer to dry out, since penetration occurs in humid conditions.
Treatment of concrete with Penetron Source mirvannaja.ru
The preparation of the working solution is carried out in strict accordance with the instructions on the packaging. If you also follow all the rules for work, then the consumption of Penetron waterproofing per 1 m2 is on average 1 kg of dry mixture. This is a convenient indicator for calculations.
Application of Penetron Mixture
The ready-to-use mixture can be applied either from the inside of the structure. The direction of water pressure, in this case, does not matter!
The finished composition of Penetron is applied with a wide brush. The first layer is applied horizontally, the other vertically, to avoid the appearance of untreated surface areas! The second layer is applied no later than an hour after the first.
After applying the composition, the surface must be moistened and protected from exposure to negative temperatures for three days. Humidification should be done without pressure - by spraying.
Technical features of using Penetron
The prepared waterproofing solution is applied to a well-moistened surface. Wetting of concrete must be done several times to achieve the maximum possible penetration of water into the pores of the concrete monolith. To achieve the desired result, waterproofing can be applied from any side of the structure. This allows you not to dig up the old foundation of the building, but to cover it with a protective layer from the basement.
The material is applied in two layers. No more than one hour should pass between applying the first and second coat. If more than an hour has passed after applying the first layer, the technology is considered broken. Applying the next layer, in this situation, does not make sense.
Properties
The material is non-toxic and environmentally friendly. It is allowed to use the solution for treating concrete tanks for storing drinking water supplies.
There are certificates confirming the possibility of its use in any type of construction work. It is not recommended, and in case of large gaps it is prohibited, to use the material for insulating seams, joints, junctions and utility service inputs. For these purposes, the manufacturer specially developed Penekrit and Penelag.
We deliver throughout the North-West region (including Murmansk, Arkhangelsk) tel. +7 (931) 103-71-76
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Other waterproofing materials for concrete from Penetron
Concrete waterproofing compound is not the only product that can be useful for cementitious composites. The manufacturer offers a whole line of products. The description is presented in the table below.
| Penecrit | Designed to prevent drip leaks and moisture penetration through micropores. Water resistance – W14, consumption – 1.5 kg/l.m. Fills seams up to 25 mm wide and 40-50 mm deep. If the value is higher, it is allowed to add gravel or crushed stone to a 50/50 ratio. Sold dry. The recommended portion of the batch is 7-8 kg. |
| Peneplug. | Relevant for immediate repair of areas with leaks under pressure. Work in conditions of direct contact with water is acceptable. The working time of the sealant is limited to 30 minutes. Water resistance – W16, consumption – 1.9 kg/m3. dm. |
| Waterplug | It is identical in functionality to Penoplug, but takes longer to set. Waterproof W14, consumption 1.9 kg/cu.m. dm. It is made on the basis of aluminate cement. |
| Admix | It is used as a functional liquid additive to the solution at the stage of its preparation. Helps improve the resistance of concrete to changes in humidity and temperature, increases the permeability of dry residue by 3 positions. The composition is prepared with water in proportions 1.5/1, the content in the composite is 1%. |
| Penebar | Suitable for sealing seams, joints of adjacent structures and utilities with concrete. It has the property of increasing in volume up to 300% upon contact with water. Sold as an elastic band/gasket with a rectangular cross-section. In cold weather, flexibility is maintained. |
As a rule, the listed compositions are used in combination with Penetron. This is explained by obtaining the highest quality result. The exception is Admix, since additional waterproofing is rarely necessary.
Technical characteristics of Penetron
Externally, Penetron looks like a homogeneous gray powder. There should be no lumps or foreign impurities in it, the moisture content should not exceed 0.3% by weight. In a dry, uncompacted state, its bulk density practically coincides with the bulk density of cement and is approximately 1170 kg/m. cube
After treatment with a mixture of Penetron, the properties of concrete are significantly improved:
- waterproofing properties increase by at least 3 positions;
- compressive strength increases by 5%;
- frost resistance increases by 100 defrost/freeze cycles;
- resistance to acids (hydrochloric and sulfuric) occurs;
- resistance to caustic soda and other alkalis occurs.
The dry mixture can be stored at any humidity; it is not afraid of temperatures in the range -80°C ... +80°C. The mixture, ready for application, begins to set after 40 minutes, the maximum setting time is 160 minutes (2 hours 40 minutes). However, finishing work or commissioning should be carried out according to the recommendations (no earlier than two weeks).
Once applied, the concrete can be used to create drinking water reservoirs. The surface does not transmit radioactive radiation and does not emit harmful fumes, therefore it is environmentally safe.
Briefly about the main thing
Penetron is a deep penetration waterproofing mixture with a service life of 75-100 years.
The effectiveness of the solution reaches 90-110 cm, minimum 30-40 cm.
The main components are Portland cement, fine-grained quartz sand and active additives.
Along with Penetron, the manufacturer’s line includes a water repellent for solution, a sealant and a filler for gaps with cracks, including instant setting.
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