Aerated concrete masonry: technologies, recommendations, features of work in winter. Is it worth building a house in the winter season? Block building in winter

CONSTRUCTION FROM AERATED CONCRETE IN WINTER To the question "Is it possible to build from aerated concrete in winter" the manufacturers of this universal building material unanimously give an affirmative answer. Laying blocks in the autumn-winter period is allowed, while low temperatures do not affect the quality of the masonry. In order to start building, despite the vicissitudes of the weather, you will need a special adhesive designed for use at temperatures between +5 and -15 °C. If you decide to build a house of aerated concrete in the winter, then in no case use standard glue. There are other types of glue, thanks to which a house or some other building can be built even at temperatures down to -20 ° C. Aerated concrete construction in winter has a number of features and rules - follow them, and the quality of the masonry will not suffer. But winter construction still has disadvantages - this is a higher cost compared to summer work and a longer period for laying blocks. From the point of view of economy, laying aerated concrete in winter is not the most profitable solution. Laying aerated concrete in the cold period Have you decided to build a house of aerated concrete in winter? Then you should familiarize yourself with the technology of laying blocks in the cold season. Is it possible to lay aerated concrete in winter without knowing the specifics? In no case, otherwise the house will not last long. Before laying aerated concrete at a temperature below zero, it is necessary to warm up the blocks - this must be done directly during construction. The blocks need to be watered with hot water, the temperature of which is about 40 ° C. The glue that connects the blocks must also be diluted with hot water, otherwise it will quickly harden. Dilute the glue in a plastic container and be sure to cover it with a lid to slow down the cooling. Before laying aerated concrete in winter, be sure to warm up the blocks. Blocks must be covered with a banner made of dense material. The blocks can be heated using a heating element or similar equipment, while the banner must be pressed in such a way that hot air does not come out. It is unlikely that the internal space will be completely "sealed", but heat loss should be minimized. Only after warming up, you can start the winter construction of an aerated concrete house! Warming up takes about an hour. A house made of aerated concrete blocks is built much longer in winter than in summer - this is a fact. How to store aerated concrete blocks in winter Do you want the aerated concrete masonry to be of the same quality in winter as in summer? Then you should take care of creating the storage conditions that are necessary to maintain technological characteristics. In the case of long-term conservation, for example, for a period of more than 3 weeks, it makes sense to store the blocks in their original packaging; it is not necessary to fully or partially open the aerated concrete. Storage of aerated concrete in winter is possible right on the street, it is not necessary to remove the blocks indoors or under a canopy. The upper part of the factory packaging completely protects the blocks from moisture. 2 weeks before the day on which the laying of aerated concrete is planned, the packaging must be removed, leaving the upper part. This time is enough for the accumulated moisture to come out of the blocks. If the winter laying of aerated concrete begins in the near future, and long-term conservation of the blocks is not planned, in this case, you can immediately remove the side of the package so that the blocks dry out. Leave only the upper part that protects the blocks from precipitation. Storage of aerated concrete in winter is possible with full preservation of the technological properties of the material. So, you can build an aerated concrete house in winter if you can't wait for the construction season - it will just be a little slower and more expensive.

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Features of construction in winter from aerated concrete blocks Ytong or Gras (st. No. 2)

Questions about winter construction

SPECIALLY FOR LAYING INTERNAL PARTITIONS, Xella Ytong Launches New Product Sale" Polyurethane adhesive for aerated concrete Ytong Dryfix 750 ml". On this page you will find the presentation of the new product.

October is the month which is popularly called the pre-winter month, that is, the calendar period when frosts begin to set in. And the presence of frosts and subsequent frosts impose certain features when masonry walls are made from Ytong aerated concrete blocks of the Mozhaisk plant of Ytong aerated concrete blocks or the Maloyaroslavsky plant of aerated concrete blocks Gras. The peculiarity of masonry from Ytong aerated concrete blocks in winter is that it is no longer possible to work using Ytong summer glue during this period, for laying Kaluga aerated concrete blocks or Ytong aerated concrete blocks in winter, Ytong winter glue or polyurethane glue is needed

The main requirements for laying Ytong aerated concrete blocks in winter are set out in the SNiP for stone and reinforced masonry structures and SP 1513330 2012 in the section "Guidelines for the design of structures erected in winter" Grasse blocks in winter conditions is what would be the accepted method of winter laying on Yitong glue, aerated concrete load-bearing walls and partitions both during their construction in winter and during their subsequent operation. That is, the main criterion for assessing the quality of laying aerated concrete walls from Ytong aerated concrete blocks in winter with Ytong winter glue (I want to emphasize again) or polyurethane glue , this is to ensure the design strength of aerated concrete walls made of Ytong aerated concrete blocks or Gras aerated concrete blocks laid out on Ytong winter glue or polyurethane glue Ytong Dryfix and their stability during subsequent operation.

The strength of laying aerated concrete walls from Ytong aerated concrete blocks in winter with Ytong winter glue depends primarily on the ability of Ytong glue or mortar at low temperatures and in conditions of ice and snow to provide:

1- Reliable adhesion of Ytong aerated concrete blocks in the process of laying an aerated concrete wall in winter with Ytong winter glue or polyurethane glue between each other and thereby create a monolithic aerated concrete wall from purchased Ytong aerated concrete blocks or Gras aerated concrete blocks.

2- A set of necessary, according to the Ytong strength project, on which Ytong aerated concrete blocks are laid in the winter in the aerated concrete wall of the cottage.

Now knowing what needs to be provided with the use of Ytong winter glue, in the process of laying aerated concrete walls from Ytong aerated concrete blocks in winter or Grasse aerated concrete blocks in winter, let's move on to considering the provision of conditions for laying aerated concrete blocks in winter.

And so what prevents in winter conditions at low temperatures to ensure proper adhesion between or Gras when they are laid in the aerated concrete wall of the cottage in the winter with Eatong winter glue or polyurethane glue Ytong Dryfix

1-since the temperature of the surface of Ytong aerated concrete blocks or aerated concrete blocks Kaluga aerated concrete or Gras aerated concrete block is negative, then the hit of a solution or glue Itong closed on water on the surface, an ice film is formed that prevents the liquid phase of Ytong glue or solution from penetrating into the surface zone of the aerated concrete Itong block as a result, the surfaces of Ytong aerated concrete blocks are not bonded with Ytong glue. Therefore, in order for the ice film from Ytong winter glue not to form on the surface of the Gras aerated concrete block or Ytong aerated concrete block, small amounts of salt additives, usually sodium nitrate, are introduced into the Ytong winter glue or winter adhesive solution, which, by lowering the freezing point of the water located in Ytong glue, as components of glue or solution, does not allow the formation of an ice film and the liquid phase of winter glue or solution freely penetrates into the surface layer of Ytong or Gras aerated concrete blocks, providing physical conditions for gluing the surfaces of Ytong or Gras aerated concrete blocks into a monolithic aerated concrete wall of the house. To date, there is no need to make a mortar or adhesive with antifreeze salt additives in the construction conditions on site. Factories today produce special winter adhesives for aerated concrete blocks Yitong and Gras, which allow laying aerated concrete walls from aerated concrete blocks Yitong or Gras on winter glue at air temperatures up to -15 0 C. Polyurethane adhesive does not have such disadvantages even at negative temperatures down to -5 aerated concrete blocks Yitong can be carried out in winter.

1.1-The adhesion of Ytong and Gras aerated concrete blocks is not ensured when laying aerated concrete walls of cottages, even when using Ytong winter glue or winter mortar, if there is snow or ice on their surface, therefore, when laying aerated concrete walls from Ytong or Gras aerated concrete blocks during masonry work on Ytong winter glue, it is advisable to cover aerated concrete walls from precipitation on their surface. And if snow has fallen on the surface of Ytong or Gras aerated concrete blocks, then before laying Ytong aerated concrete blocks on Ytong winter glue, it must be carefully removed. An important role is also played by the correct Itong or Gras during the period of preparing them for laying in aerated concrete walls.

2-The strength and solidity of the aerated concrete wall of the cottage, laid out from Ytong aerated concrete blocks in winter or Grasse aerated concrete blocks in winter, is directly affected by the strength of the winter glue itself or the winter adhesive solution. Let's see the physico-chemical process that occurs in the adhesive or mortar mass during its mixing with water. The basis of winter mortars and winter glue Itong is cement. Cement is able to hydrate, followed by crystallization and formation of cement stone only in the presence of water in the liquid phase. And in order for this to happen, and the winter glue or winter adhesive solution at negative temperatures could gain strength, it is necessary that the water be in the liquid phase, and this can be achieved either by introducing the same salt additives that exclude water freezing in the winter glue or winter solution, or by heating the aerated concrete wall itself, providing it with a positive temperature. The solutions are different - this is the arrangement of the so-called "greenhouses" or the use of electrical heating of the masonry of aerated concrete walls from aerated concrete blocks Itong or aerated concrete blocks Gras. There are technologies that allow the so-called laying of aerated concrete blocks for “freezing”, when the wall built is not loaded before the onset of positive temperature, the gas block is warmed up, winter glue or winter mortar is warmed up, a liquid phase of water is formed, which provides adhesion in the final process aerated concrete blocks and curing of winter glue or winter mortar over time. But here, in this case, it must be remembered that the laying of aerated concrete walls for freezing is a special technology of stone work, an aerated concrete wall built using this technology is not loaded until the aerated concrete walls are completely thawed, and after that, already at a positive temperature, on average about a month, the aerated concrete the walls of the cottage lined with winter glue from aerated concrete blocks Itong or aerated concrete blocks Grasse. An aerated concrete wall built on Ytong winter adhesive, at the end of the month, is subjected to laboratory strength tests, and only when the design strength is gained, an aerated concrete wall made of Ytong or Gras aerated concrete blocks built on Ytong winter adhesive can be loaded with loads, lintels, beams, ceilings, etc. d. During the winter laying for “freezing” on Ytong winter glue, it is necessary to carry out engineering measures to exclude the loss of stability of aerated concrete walls until they reach the required design strength.

In winter, it is forbidden to use masonry winter mortars and winter adhesives with anti-frost additives of a brand less than M-50 and for freezing with a brand of less than M-100 during the construction of aerated concrete walls from aerated concrete blocks Itong or Gras.

The height of aerated concrete walls made of Yitong aerated concrete blocks or Gras aerated concrete blocks erected on glue for “freezing” should not exceed 15m or 4 floors.

It should also be taken into account that in aerated concrete walls built from Yitong aerated concrete blocks or Gras aerated concrete blocks on Yitong glue using the “freezing” technology and already hardened when collecting loads and transferring them to such a wall, the coefficient. The working conditions of such a wall cannot be more than 0.7

Considering that it is rather difficult to prepare glue or mortar with antifreeze additives in construction conditions, hence my advice is to use winter adhesives and winter mortars produced in the factory and by companies with a good reputation from the distributors of these companies.

Is it possible to build a house in winter time?

The construction of a private house is a complex process, the duration of which depends on many factors. Construction, which is not always started in the spring, can be completed before the onset of cold weather. Many developers are interested in whether it is possible to build a house in winter. They do not want to stretch the execution of work and at the same time are afraid to make a mistake. Thanks to modern technologies, it is possible to build buildings all year round.

Construction in winter - general specifics of work

Crystallization of water entering concrete is a major problem during construction in winter. Without the use of modern methods and the use of modifiers, moisture that has increased in volume can violate the integrity of the concrete mass.

Regardless of whether brick blocks are used to build a house or concrete is used, the following conditions must be observed:

• adhere to technological recommendations for the performance of work in cold weather;
• provide a heat-insulated room for construction personnel;
• provide a level of illumination that allows you to work after dark.

Despite the seasonal nature of construction work, winter is not an insurmountable obstacle to their conduct.

The general algorithm for erecting a building in cold weather, regardless of the materials used, includes the following stages:

• obtaining permits. Registration of a building certificate is in no way connected with the time of year. You just need to develop a project in a timely manner and submit the necessary documents for registration;
• acquisition and delivery of the necessary materials to the facility. Costs will be significantly lower due to seasonal discounts. Transportation of materials in winter can be much easier, as the mud will not interfere with the access of vehicles;
• earthworks associated with the arrangement of the foundation. The negative temperature facilitates work on loose soils. The use of concrete with additives allows you to pour the foundation at temperatures up to -20 ⁰С;
• erection of capital walls and construction of the roof. In the construction of load-bearing walls and partitions, a heated mortar or concrete composition with the addition of plasticizers is used. In wooden beams used in frost to build a roof, the concentration of moisture is maximally reduced;
• roofing and finishing works. Not all roofing and finishing materials allow their use at sub-zero temperatures. To perform work in the winter, you should choose the right materials.

To use concrete at low temperatures, modern methods can be applied:

• add additives to the concrete mixture that increase the frost resistance of the composition. This will allow construction activities to be carried out at low temperatures;
• preheat the concrete at the stage of its preparation. After pouring, the solution must be thermally insulated so that it completely hardens before the water freezes;

Most of the problems associated with winter construction are caused by the property of water to freeze at temperatures below zero degrees.

• perform electrode heating by passing current through steel electrodes. The supply voltage is supplied from a step-down transformer;
• use infrared sources. They allow you to perform directed heating of the array, as well as increase the temperature of the concrete through the formwork;
• use heating cable. It is laid in loops with an equal interval between turns before concreting, and heats up the concrete solution when voltage is applied;
• install heating formwork. It consists of standard sections, which are equipped with electric heaters and can be easily combined into a single structure.

Using these methods, it is possible to provide the necessary conditions of the concrete solution.

Winter construction - pros and cons

Carrying out concrete activities in the winter, you can appreciate the following advantages:

• conservation of the landscape. At low temperatures, it will not suffer as a result of the movement of construction equipment on frozen soil;
• ease of delivery of building materials. Durable and dry pavement and lack of slush ensure the possibility of accelerated transportation;
• significant savings. The cost of building materials in winter is much lower than in the rest of the time;
• reduction in work time. Building a box in winter will allow you to quickly start finishing with the onset of spring.

The construction of residential buildings has a number of specific requirements that prohibit certain types of construction work in winter

Along with the advantages, there are weaknesses:

• additional costs associated with the use of plasticizers and increased power consumption;
• the need to use professional equipment for heating and attracting specialists;
• reduced daylight hours and adverse weather conditions that adversely affect the pace of work.

On specific examples, we consider the possibility of using various materials at low temperatures.

Is it possible to build a house in winter from foam blocks

Foamed blocks are a type of porous concrete. They are characterized by increased performance: heat-saving properties, high sound insulation, do not shrink. However, foam blocks have increased water absorption, to prevent which it is necessary to protect the surface.

In winter, you can put foam blocks. It is important to consider the following points:

• use a mortar or adhesive with frost-resistant characteristics;
• erect a tent-type frame-film structure above the masonry;
• protect the surface of the blocks from moisture with the help of external cladding.

These measures increase the construction budget.

Masonry blocks should not be damp and covered with snow

Is it worth building a house of aerated concrete in winter

Is it easy to build a house from aerated concrete. Of course, you can do it in a short time and at minimal cost.

Moreover, you can start building your dream home even in winter!

Construction of aerated concrete in winter

To the question "Is it possible to build from aerated concrete in winter," the manufacturers of this universal building material unanimously give an affirmative answer. Laying blocks in the autumn-winter period is allowed, while low temperatures do not affect the quality of the masonry. In order to start building, despite the vicissitudes of the weather, you need special glue. designed for use at temperatures from +5 to -15 °C. If you decide to build a house of aerated concrete in the winter, then in no case use standard glue.

There are other types of glue, thanks to which a house or some other building can be built even at temperatures down to -20 ° C. Aerated concrete construction in winter has a number of features and rules - follow them, and the quality of the masonry will not suffer. But winter construction still has disadvantages - this is a higher cost compared to summer work and a longer period for laying blocks. From the point of view of economy, laying aerated concrete in winter is not the most profitable solution.

Aerated concrete masonry in the cold season

Have you decided to build a house of aerated concrete in winter? Then you should familiarize yourself with the technology of laying blocks in the cold season. Is it possible to lay aerated concrete in winter without knowing the specifics? In no case, otherwise the house will not last long.

Before laying aerated concrete at a temperature below zero, it is necessary to warm up the blocks - this must be done directly during construction. The blocks need to be watered with hot water, the temperature of which is about 40 ° C. The glue that connects the blocks must also be diluted with hot water, otherwise it will quickly harden. Dilute the glue in a plastic container and be sure to cover it with a lid to slow down the cooling.

Before laying aerated concrete in winter, be sure to warm up the blocks. Blocks must be covered with a banner made of dense material. The blocks can be heated using a heating element or similar equipment, while the banner must be pressed in this way. to prevent hot air from escaping. It is unlikely that the internal space will be completely "sealed", but heat loss should be minimized. Only after warming up, you can begin the winter construction of an aerated concrete house. Warming up takes about an hour. A house made of aerated concrete blocks is built much longer in winter than in summer - this is a fact.

How to store aerated concrete blocks in winter

You want your aerated concrete masonry to be as good in winter as it is in summer. Then you should take care of creating the storage conditions that are necessary to maintain technological characteristics. In case of long-term conservation. for example, for a period of more than 3 weeks, it makes sense to store the blocks in their original packaging. it is not necessary to open aerated concrete in whole or in part. Storage of aerated concrete in winter is possible right on the street, it is not necessary to remove the blocks indoors or under a canopy. The upper part of the factory packaging completely protects the blocks from moisture. 2 weeks before the day on which the laying of aerated concrete is planned, the packaging must be removed, leaving the upper part. This time is enough for the accumulated moisture to come out of the blocks.

If the winter laying of aerated concrete begins in the near future, and long-term conservation of the blocks is not planned, in this case, you can immediately remove the side of the package so that the blocks dry out. Leave only the upper part that protects the blocks from precipitation. Storage of aerated concrete in winter is possible with full preservation of the technological properties of the material.

So, you can build an aerated concrete house in winter if you can't wait for the construction season - it will just be a little slower and more expensive.

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Aerated concrete is a very popular building material. It's not worth talking about, just remember the statistics. After all, in Ukraine more than 25% of buildings are built from aerated concrete. And this despite the fact that there are many other wall materials: brick, ceramic block, foam block, etc. And all thanks to the amazing physical and technical characteristics of this product.

Building a house from aerated concrete during the construction season (from spring to autumn inclusive) is not difficult. But what if you need to build a house in winter?

Let's start with the fact that such situations are best avoided. Despite all its many advantages, aerated concrete does not tolerate winter well on an open construction site, as it has a high hygroscopicity. Moisture absorbed into the pores of the material turns into ice at negative temperatures and expands, causing cracks.

But if the situation requires it, you will have to build walls of aerated concrete in winter.

Features of masonry in winter

Make sure that there is a spacious, dry, enclosed space near the construction site, preferably heated. It is there that the gas block should be stored. Never leave it outside in the cold.

An additional problem is the rapid freezing of mortar and adhesive for aerated concrete at temperatures below +5 degrees Celsius. Therefore, you need to use only frost-resistant glue.

Although it costs approximately 15% more than a simple gas block adhesive, however, thanks to frost-resistant additives, it can be used even at a temperature of -15 degrees.

The gas block itself must be warmed up before laying. To do this, build a frame around the pallet and cover it with plastic wrap or a tarp. Warm up the air inside the frame with any of the available devices:

1. fan heater;
2. Heat gun;

Glue for aerated concrete should be poured into a container with a tight-fitting lid. When mixing, dilute the adhesive with hot water.

The first row of the gas block is placed on a cement-sand mortar. It is used mainly for laying out the first row and filling the strobe with reinforcement. Do not forget to add antifreeze modifiers to the solution.

It is impossible to carry out work with glue at temperatures below -15 degrees. Even if the adhesive cures normally, the seams will suffer due to the crystallization of chemically unbound water in the pores.

You can buy a quality gas block in the Trivita online store -