Laying nets do in the house of aerated concrete

Any developer, planned to build a house of aerated concrete, faced with the need to manufacture Laying nets (it is called seysmopoyasom). Laying nets on aerated concrete is a reinforced concrete monolithic tape flooded across the perimeter wall (between the first and second floors, and the like). This element is required for load balancing and connection walls together. This reduces the risk of cracks in the uneven shrinkage of the building. Also mauerlat Laying nets laid under the roof at the device.

Maxim Ban (User FORUMHOUSE):

You can not strengthen the timber (mauerlat) directly to the aerated concrete on the studs. If you do this, over time, under the influence of wind loads, mount cranky. When the attic floor device Laying nets on aerated concrete with wooden ceiling redistribute point load from the timber on the wall.

The example with the nickname forumchanin mad-max, which exhaustively answer the question, when you need Laying nets in the house of aerated concrete. He did not have to fill in under the mauerlat Laying nets, and the house went to the "winter." Even during the cold arched openings under the windows of the house were cracked right in the middle. First cracks were small - about 1-2 mm, but they began to increase gradually and largely opened up to 4-5 mm. As a result, after the winter forumchanin filled belt 40h25 see, in that before pouring concrete solution set anchor at mauerlat. This solved the problem with the increasing cracks.

mad-max (User FORUMHOUSE):

I would like to add to this that the foundation under the house I have a tape - High-quality, soil rocky, progress base, before I started to build the house, it was not. I believe that the reason was the lack of cracks under mauerlat Laying nets.

Aerated concrete home, and the more aerated concrete house with two floors, needs Laying nets. In its manufacture should remember this rule:

There are several options Laying nets device aerated concrete house. Laying nets manufacturing begins with the calculation of its cross section, and select the type of formwork - removable or non-removable, as well as the "pie" of the assembly.

Eyeonenow (User FORUMHOUSE):

I have built a house of aerated concrete thickness of 37.5 cm, lined with bricks and ventilated gap of 3.5 cm. Use special U-blocks are prefabricated by casting Laying nets, I do not want to. I am seen in our forum the following circuit when building a house, how to insulate Laying nets - on the wall block sets the septum unit 10 cm thick, then goes insulation (Epps), and is mounted inside the house removable formwork. Also I saw an option when the heater is pressed against the brickwork. In such a scheme obtained times greater width.

To understand on what variant to stop, turn to the experience FORUMHOUSE experts.

44alex (User FORUMHOUSE):

I have built a house of aerated concrete 40 cm thick. In my opinion, a ventilated gap between the wall and cladding 3.5 cm - is not enough, optimally to leave a gap of 5 cm. If you look at the "pie" Laying nets from the inside out, he was as follows:

• removable formwork;
• concrete 20 cm;
• Epps 5 cm;
• septum unit 15 cm.

Formwork forumchanin recommends making from sheet material. This may be plywood, OSB, DSPs, and so on. N., A gain required for strength of the upper edge of the board-dyuymovka. Attach the formwork can be, her screwing screws 75 mm in length, directly into the aerated concrete block. Top formwork further fixed board (bar) or a punched tape, which is screwed to the outdoor unit.

It is impossible to cover the ventilated gap, otherwise the meaning is lost in it. Because steam, striving from the heated space to the outside, can not evaporate and will be "locked" in - between masonry and gas concrete wall. Therefore, do not build a house for permanent residence of aerated with vapor diffusion-proof (or maloparopronitsaemoy) lined with non-ventilated air gap or brickwork, located close to the wall.

You should also not be guided by the rule at the device Laying nets: the wider it is, the better. This leads to unnecessary overuse of materials and tools. Doing Laying nets, the section should be chosen not by eye, and guided by the calculation.

Traks (User FORUMHOUSE):

-So when I asked the man, well versed in construction, on the section Laying nets. He replied that in many cases it is enough to fill in the belt width of 10 cm and 15 cm in height.

These figures do not cancel prior calculation section Laying nets, because it is a specific task.

According to members of the forum, because Laying nets is only required for the binding of all of the walls, then do it in the wall thickness is inappropriate. Therefore, the "cake" formwork (thickness of the block 37.5 meters) may be as follows:

• Outside unit thickness set to 15 cm;

• Laying nets do insulation, to cut off the cold bridge. Instead of extruded polystyrene foam thickness of 5 cm can be used high-density mineral wool, which is used in the technology of "wet facade";
• Put a reinforcement cage;
• Inside, as permanent formwork, use the unit 5 cm, cut from the entire block. The remaining space is filled with concrete.

Laying nets at home. Warming.

Dimastik25 (FORUMHOUSE User):

The advantages of this type of formwork applies its speed of installation, because set (adhesive) unit 50 mm thick in times faster than to mount a removable formwork. We get inside we needed a flat and smooth surface, ready for finishing.

Experience shows that the unit thickness of 50 mm (adhesive landed) is sufficient in order to withstand the load during concrete pouring, even if the mixture is poured from a concrete pump. To reinforce the structure may be top walls of the tie bar to tie 25x50 mm, connecting thereby the inner and outer block.

Another option may be a permanent formwork method proposed Dimastik25. BTo lower cut from a block, you need to buy a pallet of blocks of three sizes:

• 150;
• 75;
• 50.

Further stacking blocks in the following order:

• Outside glue unit width of 150 cm;
• Put a block sawed to 17 cm;
• Inside the formwork sticking unit thickness of 50 cm;
• Put the insulation thickness of 5 cm;
• Inside the box 4 laying reinforcement rod 12 mm in diameter. Undergirding it every 30 cm.

Dimastik25:

I have a home 11h12 meters, fill Laying nets took 1.5 m3 of concrete. And, to save (working with a neighboring building concrete peretaskat agreed for 5000 rubles.) Poured all buckets, because Concrete rental would cost 15,000 rubles.

You can also make the classic wooden formwork.

typedef (User FORUMHOUSE):

I poured Laying nets and this made wooden boards. Formwork (on both sides) is screwed directly to the aerated concrete long screws at 135 mm. On the part of the outer walls, inside, laid extruded polystyrene. Top of form panels was fastened bars.

For guideline for reinforcing (tape section 10x15 cm) recommend the following scheme. Above and below the rod 2 set at 12 mm. For reinforcement stirrups take 6-8 mm in diameter. When knitting the carcass is important to provide a protective layer of concrete. To do this, leave between the wall formwork and reinforcement, as well as the top and bottom of a free space of at least 2.5 cm.

When filling Laying nets following formwork device scheme most often used:

"Pie" outside - inside.

• Wood (removable shuttering panel), 150h25 mm insulation thickness of 5 cm, the reinforcing frame board (removable shield casing) - 150h25;
• Concrete block 10-15 cm thick, 5 cm thick insulation; reinforcing cage, aerated concrete block (permanent formwork) with a thickness of 50 mm;
• Concrete block 10-15 cm thick, 5 cm thick heat insulation, reinforcing cage board - 15h2,5 cm.

If the tape is filled Laying nets without a heater, then later (unless you plan to do a "wet facade" of polystyrene) it will be necessary to insulate the concrete outside. This may (through the wall insulation protruding above the surface) complicate finishing.

Based on the above given schemes, you can come up with their "pies" formwork. It is necessary to remember that when laying concrete slabs required to mount two Laying nets:

• Strapping. Floor slabs is poured in the level;
• Reference. It is based directly on floor slab.

It is also necessary to take into account a caveat.

floor slab must be based on concrete block (on the U-block or permanent formwork) only via a spacer-damper. As the "elastic" gasket can be used waterproofing strip width of 50 m and a thickness of 3-4 mm. Depth Laying nets bearing on the ordinary PC plate is at least 12 cm, the recommended - 15 cm. And when using extruded prestressed hollow slabs enough to withstand in bearing depth of 7-8 cm.

Read on FORUMHOUSE, from which concrete pour Laying nets.

After reading the topic "Selecting Laying nets design house of aerated concrete"You will learn all the variants of the device of the node. We offer you to find out the answer to the question: for what is necessary Laying nets. Also, users can learn FORUMHOUSE all the necessary information about the construction of aerated concrete homes and about production of the "correct" the formwork for the foundation. In this material, construction technology understands detail laying the mounting aerated foam. And with the help of this video you can understand, how to build their own house of aerated concrete.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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