Advice 1: What is needed Foundation for the house of aerated concrete

Choosing the type of Foundation for houses of aerated concrete it is necessary to consider the peculiarity of this building material. Such a construction is more need reliable sustainable basis.
For houses of aerocrete the optimal choice would be a monolithic slab Foundation
Concrete, unlike other building materials, has one, but significant disadvantage: it is very susceptible to any kind of deformation. The resistance to bending of blocks of gas silicate is so small that even small shifts in the Foundation can cause cracks up the entire wall. So getting to the construction of such a house the main attention should be paid to its Foundation.
Requirements for foundations for houses of aerocrete

Given the nature of this material, the selection of Foundation types is significantly restricted. Construction of gas silicate requires the most stable and well reinforced foundations. These include: monolithic slab, strip and columnar base. It is essential to make a correct calculation of the bearing capacity and strength of Foundation of houses of aerocrete with a ground floor or high basement.
Build a high quality Foundation for such buildings is not easy, but it can get much worse if the site high groundwater level. For the developer in this case has two ways out: either to build a house of a different material or install a drainage communication. In the latter case, the cost of housing will increase significantly.
High groundwater level threat waterlogging of the soil and the risk of frequent flooding in the spring and autumn periods. It can cause premature destruction of the Foundation and, accordingly, the deformation of the base and the house. Wet soils belong to the category of zelepukina, those in which the Foundation has various powerful forces: push, shrink, grow, etc. Therefore, for the construction of houses of aerocrete on heaving soils is required to efficiently seal the base and make a ring or wall drainage.
Optimal Foundation for the house of aerocrete

For small buildings will be quite monolithic strip Foundation. To build houses of silicate on national foundations is not recommended. The level of penetration of the tape is calculated based on the soil type and other factors the construction site. Suitable for such structures and pile Foundation. But it needs to embrace the whole frame reinforced concrete grillage. This precaution will help prevent the cracking of concrete walls.
Monolithic concrete slab – more expensive Foundation, but it is much more reliable. On this Foundation the construction of gas silicate blocks can stand for decades without any damage. This solution is optimal for the individual developer.

Advice 2 : How to build a house of aerated concrete

Concrete treat concrete and wire mesh is an artificial stone. It is manufactured with autoclave drying. In the solution for production in addition to cement, sand and water is added to lime and aluminum powder, which when a specific technology of production formed pores. Construction of aerated concrete is a cost-effective and produced in a short time.
How to build a house of aerated concrete
Features of construction of aerated concrete lies in the fact that from this material you can construct buildings, 2-3 floors and to make reliable high basement and ground floor. After the completion of the concrete must be isolated from moisture, as due to the addition of lime, the moisture can lead to the destruction of the material.
To build load-bearing walls of the building, choose the brand of aerated concrete, specifically designed for load-bearing walls is D 1000 and 1200. All other brands on the density rather correspond to the production of thermal insulation works. But the higher density of aerated concrete, the lower thermal insulation characteristics. Therefore, immediately after the completion of construction of the house is necessary not only to isolate from moisture, but also to insulate.
For walls of aerated concrete suitable for only two types of Foundation is a reinforced tape or solid tile. If you save on the Foundation, concrete wall burst up to the faults, because this material is fragile and therefore, to save on Foundation by no means impossible.
If you decide to build a strip Foundation, then be sure to consider the condition of the soil. The pit needs to be dug below the frost, but above the groundwater level. In the construction of aerated concrete is especially important to consider. Inside a formwork, install a powerful reinforcement cage. Cement for concrete use only high marks.
For fixing aerated concrete use reinforced screw anchors. Regular dowels that are used in the construction of walls of brick, will not work.
After the erection of walls to just do the roof. Leave this step for next year is impossible. As already stated above, concrete is necessary to immediately protect from moisture.
Obtyanite all exterior walls vapor barrier material and the top insulation.
Inside the walls is also necessary to protect from moisture vapor barrier material.
Everything else is as conventional construction.

Advice 3 : How to lay concrete

Aerated concrete has a number of indisputable advantages before other construction materials. It blocks that retain heat well and do not cause trouble in the clutch.
How to lay concrete
You will need
  • Cement, sand, rope, construction level and plumb, aerocrete.
Mix cement mortar in the ratio of 1 part cement, 3 parts sand. This mixture should be used for laying the first row. The remaining rows it is better to use a special glue or mortar.
Begin construction of aerated concrete walls with the corners of the building. As you would with a normal bricks, follow the packing joints.
Check vertical and horizontal plane of the block. Do it with a special plumb Bob and a level.
Stretch the string between the blocks of concrete, forming the edge of the future wall. To fix it should be to the upper corners of the blocks. The rope must be stretched perfectly straight, so use a level.
Put one block after another, focusing on the level of the rope. Adjust the height of the packing of the seam below the surface of the first row of blocks was smooth. Depends on the quality of masonry throughout the walls, and thus the structure as a whole.
Check after every two or three rows of blocks at the wall both horizontal and vertical. In some cases, the wall can shift to the side. This situation can be easily remedied. It should return the blocks in place, lightly hitting him with a trowel.
Provide forced ventilation in the building process. This will accelerate the drying of the blocks.
Aerated concrete is divided into three types of density: D 500, D 400, D 300.

Type D 500 - the highest density of aerated concrete blocks, used for masonry bearing walls structures called structural-insulating. It is not recommended to use for the construction of non-bearing partitions, because of the large load on the surface increases the load on the Foundation of the entire structure.

Type D 400 - the average density of aerated concrete blocks, also called thermo insulating, but can withstand much lower structural loads than concrete class D 500.

Type D 300 is the low density of aerated concrete. Such a block is called insulation. Does not withstand structural loads and is used as insulation.
Useful advice
Aerated very well with adhesives, paints, plasters and mortars for masonry. In order to easily cut aerated concrete block will fit the saw and using a drill it's easy to drill.

Advice 4 : What should be the height of the Foundation of the house

The optimal height of the Foundation above the ground can be assessed by adding 10 cm to the average snow level, which was observed in the area the last few years. Towering above the ground, the Foundation prevents the wetting of the walls during the thaw or rain, and also compensates for shrinkage of soil under the weight of the walls.
What should be the height of the Foundation of the house

What affects the height of the Foundation?

For a wooden house height of Foundation is particularly important, the decay of the lower crown is the eternal problem of constructions made of logs or lumber. The distance between the ground floor and affect the insulating characteristics of the subfield and the durability of the ceiling that holds true for columnar, tape and pile Foundation.

High base or Foundation, towering over the earth and performing its functions, protects fine finishes from mechanical damage during snow removal and other yard work. The higher the concrete basement floor is above ground level, the less will be the heat loss in the lower part of the house. However, it should be remembered that the above-ground part should not be above the underground, otherwise the structure will not be sustainable. If you decided to build a separate plinth, from the point of view of strength one-piece ribbon Foundation wins compared to design "the Foundation-basement-wall."

The minimum height of the Foundation

In accordance with the requirement of the building codes the minimum height of the Foundation above ground shall be not less than 20 cm, but in practice this rule is used only when lying in the Foundation of the house of the monolithic plate. Reasonable is considered to be at least 35-40 cm, in most cases, that high rise strip foundations.

Slab foundations are most often erected on a soft or heaving soil, its height for two storey houses from timber, concrete or SIP panels may be about 20 cm For easy one-floor building enough strength reinforced slab height of 10 cm If you are building a three-story mansion of brick, the height of the basement shall not be less than 35-40 cm

In the construction of pile Foundation piles have below the depth of freezing, however, they are based on a solid Foundation. The level at which the basis is determined by geological investigations.

If erected strip Foundation, it is recommended to select a depth of 0.5 m under the level of freezing nepuchinistyh soil less than 2 m or larouchistas less than 1 m. When the depth of frost penetration nepuchinistyh soil is 2-3 m, and larouchistas — less than 1.5 m, tape laying the Foundation to a depth of 0.75 m. If larouchistas the ground freezes to 1.5-2.5 m, and heaving - more than 3 m, the Foundation of the building constructed at a depth of 100 cm.

Advice 5 : What material is better to build a house

More and more people are trying to get out of town and live in their own house. The market offers a wide range of materials for construction. The choice depends on many factors — climatic zone, soil type in the area, financial opportunities.
Many people prefer a house of bricks

Wooden house

Houses built of natural wood, beautiful. The air is not only not harmful, but can even have a healing effect on the body. This is possible thanks to the phytoncides — volatile substances contained in the wood.

Wood saves heat well, so properly constructed house of this material do not require additional insulation. Self-sufficient wood and from the point of view of aesthetics — it does not need decoration. Many owners of wooden houses are limited to the coating of the walls of the house treatment, which emphasize the structure of the material.

Construction technology is not standing still, and even logs and timber today meet modern requirements for ease and speed of construction. Now widely used round logs and glued laminated timber. These materials are deprived of a number of shortcomings which were inherent to traditional materials. They are almost not subject to deformation, and assemble houses from them easier.

On the other hand, the wood remains a living material. It can change its size in the process of shrinkage or swelling from moisture. These homes shrink. After assembling the carcass must be some time before the installation of Windows and doors. In addition, the wooden house is more exposed to the risk of fire.

The house of bricks

Many think brick is the perfect material for the home. It is durable, fireproof, beautiful. It can be used to implement various architectural fantasies. Brick houses are considered solid and reliable.

House of bricks require a solid Foundation, because the material is heavy. Brick is a good conductor of heat, so built a house out of it may require additional insulation. For the construction of such houses takes a lot of time. All this leads to the relatively high cost of brick buildings.

The house of aerated concrete

Aerated concrete brick is significantly easier and cheaper. Due to the porous structure, it retains heat very well. It is comfortable to handle, because it is even commonly sawed with a hacksaw. For houses of aerated concrete blocks need less solid Foundation than for brick buildings, at the expense of smaller mass.

The disadvantages of the material include its fragility. It requires accurate transport and does not forgive neglect at work. Aerated concrete is afraid of water and sunlight, so the external walls must be plastered or close a ventilated facade.

Frame house

Recently the people of Russia were skeptical of frame and panel houses, despite their widespread use around the world. But gradually replaced distrust come to understand the advantages of such materials. Home work cheap, warm and quite comfortable.

For houses of this type in most cases is quite simple strip Foundation that simplifies and reduces the cost of construction. Through the use of modern insulation home retain heat well. Because of this, reduced heating costs. The technology is ideal for those who house is needed urgently. Such a house can be erected in just a month, and immediately move into it — no need to wait for shrinkage of the walls or drying concrete.
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