How To Cut Aerated Concrete Blocks

Equipment types

When cutting aerated concrete blocks, various equipment is used:

  • Specially designed tool for working with aerated concrete;
  • Hacksaw for metal;
  • Drill;
  • Cutters.

The equipment is manual and mechanical. You can cut aerated concrete material to any width and length, give any angle of inclination. For small jobs, manual equipment is used, if the volume of materials is large, electrical tools are used. It is not advised to use a hacksaw chain cutter.

You can divide the aerated concrete blocks into the desired parts using a hand hacksaw cutting tool. It is used for small volumes of work and in the event that it is difficult to saw with a hacksaw. If it is not possible to purchase a special cutting tool, they get by with a hand-made hacksaw. To make a saw on wood suitable for aerated concrete blocks, teeth are made on it using an angle grinder and spread with pliers. Such a cutting device is suitable for cutting several blocks and will last a short time. This is a great option so as not to spend money on purchasing cutting tools.

However, it is better to cut aerated concrete slabs with a special tool, then the cut edges will turn out to be smooth and even. Used in the form of special cutting tools:

  • Incisors;
  • Wall chasers;
  • Planers.

Wall chaser

A device for sawing a chaser designed for cutting grooves in a block and making grooves. You need to work with a wall chaser on a construction site. They are electric and manual. The advantages of the tool include:

  • Ease of use;
  • Profitability;
  • Power;
  • Lightness and compactness;
  • No mechanical dust.

The wall chaser consists of a double-sided cutter that is fixed to the handle. To speed up the work, a tool with two holders is used. Before cutting, mark with a pencil and a ruler, the places of future holes.

Reciprocating saw

How To Cut Aerated Concrete Blocks

A saber saw, which looks like a jigsaw or electric drill, is an electric hand saw. It needs power grids to work. She easily saws aerated concrete products. The blade acts as a cutting component. The sawing process looks like a translational-rotational movement, with movement in a straight line of the mowing line. Backward, the blades rise. The design of the saber cutting tool consists of three parts, two sides are movable, and one, the middle part, is inactive and serves as a lock at the cutting site. The advantage of the reciprocating saw is the accuracy and fineness of the cut. Distinguish saber cut according to the following indicators:

  • Electric motor performance;
  • Distance of the cutting blade.

The saber tool differs in the way of cutting, it can be saber and straight. This unit can be used directly at the work site. With the help of a saber device for sawing aerated concrete structures, an accurate cut is provided, therefore it is used if it is necessary to make grooves or adjust slabs to the desired size. To make the work on the aerated concrete block neat, markings are applied before sawing. Tool depend on the performance of the unit and power.

Hand saw

For small volumes of work, a hand hacksaw is used. With its help, the openings of windows and doors are completed, and it is also impossible to cope without it when laying the initial tiers of the walls. In order for the device that cuts the products to perform its function benignly, auxiliary tools are used:

  • A metal corner with which the correct cutting angle is controlled.
  • Ruler, marker or pencil, which are needed to determine where to cut.
  • Plane for aerated concrete products, which equalizes the surface layer of masonry.

Aerated concrete is one of the hard materials, which means that the choice of cutting tools should be based on the quality of the cutting blade. Sawing with a hand hacksaw, which is designed for wood material, aerated concrete slabs are wrong. It will take a lot of time and effort. The cutting element of a hand saw should be made from carbide components with larger teeth. The hand saw is available with one handle and two. The cost of a cutting tool is influenced by the distinctive properties of the tool and the manufacturer.

Equipment for cutting gas blocks

Aerated concrete is a popular material in the construction world. Buildings and structures made of aerated concrete products are warm, fire-resistant and environmentally friendly. The material is not expensive, has high strength and is easy to cut. Aerated concrete blocks are made from a mixture of cement, sand, water and aluminum shavings. Then the stirred solution is poured into containers and left to dry for several hours. Block shapes are ready to use. When pouring the solution into large containers, slabs of the appropriate size are obtained, which are subsequently cut.

Tape

A tape mechanism is used for cutting aerated concrete in large production. It is a closed steel belt with teeth on one edge. Cutting with a belt mechanism ensures a smooth cut and produces twenty times more workpieces than when working with a hand-held electric tool. The speed of work lies in the ability to cut aerated concrete structures at once in 2-3 pieces. The mechanism teeth are made of hard alloy and multi-layer coating. The cost of the cutting structure is not affordable for everyone, and reaches five thousand dollars.

Saw

A relatively inexpensive tool with which you can cut aerated concrete blocks and perform various operations. The saw is equipped with cutting blades for precise and approximate cutting. Good technical characteristics make the saws widely used in household construction. Modifications used to cut aerated concrete blocks are produced by both domestic and foreign manufacturers. The cost ranges from 1,500-5,000 rubles.

Manual

The special feature is that the cutting blade is made of carbide metal.

A hand saw or a hacksaw for aerated concrete is widely used for small volumes of work, and it is also difficult to do without them directly at the construction site. With the help of a hand saw, additional blocks are cut, door and window openings are adjusted. In addition, it is necessary when laying the finishing rows of walls or corner places. At the same time, to ensure the best quality of the work performed, additional tools and devices are needed:

  • A metal corner used to control the correct cutting;
  • With angular and other forms of sawing, you cannot do without a regular ruler and a pencil;
  • To level the surface of the masonry, you will need a special plane for aerated concrete.
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As noted above, aerated concrete is a fairly hard material, therefore, a distinctive feature of hand saws for aerated concrete is that the cutting blade is made of carbide metal (high-carbon steel), the teeth are larger than those of hacksaws for wood. The best models for aerated concrete have teeth made of cermet hard alloy (monocarbide, tungsten and cobalt will win), have a higher wear resistance. The hand saw with victorious teeth is designed for processing approximately 25 cubic meters of aerated concrete blocks. Good wear resistance for rapid blades.

Hand saws are available in two versions: with one handle (the form of a conventional hacksaw) and with two handles. The second option is more convenient and easy to use. These tools come with replacement blades. The cost ranges from about 250 to 1500 rubles. The price of a hand saw depends on the manufacturer and on the technical specifications.

Tool options

There are a lot of options: from a simple hacksaw for metal to special ones designed specifically for working with this material.

Aerated concrete, like wood, can be processed with ordinary hand and power tools: saws, drills (drills) and cutters. Aerated concrete is cut into any shape and at any angle, you can make any bevel and slope, process blocks of any shape. It is quite easy to make channels for cables and pipes using a hand tool, and if the volume of work is large, you can also use a power tool.

Aerated concrete is a hard material, the speed of the chain is high, which is the reason for its rapid wear. The chain, no matter how sharpened and taut, in the process of work relaxes and begins “beat”. Because of this, the cut is not very smooth and quite wide. When building houses from logs, this does not greatly affect the quality of work, so chain saws can be classified as carpentry tools.

Aerated concrete wall model.

Practice shows that aerated concrete can be cut with the most ordinary hand saw. This method is suitable if the amount of processing is small. It is quite difficult to saw with an ordinary hacksaw, since it is still not quite suitable for cutting aerated concrete blocks. In addition, conventional saws designed for woodworking quickly grind on aerated concrete. However, if we are talking about the construction of a small building: an extension, a utility room, a temporary structure and several blocks will have to be cut, then there is no point in buying a special tool.

If you decide to do with small forces, aerated concrete blocks can be cut with a homemade saw made from ordinary “Soviet” saws for wood. On it, you need to cut an angle grinder large teeth and make a divorce with pliers. A small cut can be made at the tips of the teeth. This does not require sharpening, but it wears out rather quickly. But the saw can be rebuilt as needed. This cuts aerated concrete quite easily, but it is poorly suited in cases where very even filing is needed, for example, for blocks that are placed on glue. And for masonry on cement mortar, this cutting method is quite suitable.

Special equipment

Aerated concrete production scheme.

Porous building materials are small blocks that can be easily processed with various tools. Due to this property, when laying walls, the size and shape of blocks can be changed using such a device as for aerated concrete.

It is better to cut aerated concrete using a special tool. In the modern building materials market, several types can be found in order to cut aerated concrete and similar porous solid materials. In addition to saws for cutting, other tools are also used: planers, cutters, wall chasers.

Saws for aerated concrete differ in the cutting method, mechanism, type of cutting element.

Saber

The advantage of the reciprocating saw is the high cutting accuracy of both reciprocating and straight.

This handheld electric saw, powered by a network, easily cuts aerated concrete. Cutting element is a blade that makes rotational-translational movements. The working stroke is its movement along a straight mowing line with forward movement. During the return stroke, the blade rises. In its shape, a reciprocating saw resembles an ordinary electric drill or a large jigsaw. This tool has two movable cutting blades and one fixed, in the middle, which serves to strengthen in the place of the cut.

An important advantage of such a saw is the high cutting accuracy of both reciprocating and straight cutting. If we compare, for example, with a chain saw, then the cutting accuracy will be an order of magnitude higher, and its width is much narrower than from a chain.

The execution of saber ones differ in such indicators as

  • Cutting blade length;
  • Electric motor power.

The reciprocating saw has two different operating modes: straight cut and reciprocating. Each mode can cut both straight and inverted.

Such a tool can be used as a hand saw, directly at the workplace. Using a reciprocating saw, you can adjust the blocks to the desired size, make grooves for cable networks. To get a straight cut line, you must first make a markup with a pencil, ruler or angle. The modern construction market offers a lot of different models of reciprocating saws, their cost depends mainly on power and performance. The approximate range of is from 2,500 to 12,000 rubles. Most often, the delivery set includes additional tools and accessories, for example, a corner, spare blades, removable handles.

Tape

For large volumes of construction, a band saw is used. This device is characterized by a significantly higher productivity than a hand tool, the ability to make a smooth cut, which is necessary when laying walls on glue. The performance of a band saw is about 20 times higher than that of a hand-held power tool, aerated concrete blocks can be cut into several pieces at once. The cutting blade is made of carbide material, the height of the working surface is adjustable. The cost is about 5,000 euros.

How to cut aerated concrete

Aerated concrete is a relatively new building material, which is preferred by many developers. This is not surprising, since houses made of aerated concrete blocks are warm, environmentally friendly, and fire resistant. In addition, this material has a low density with sufficient strength, which means that it is lightweight and does not require the construction of powerful foundations. Aerated concrete blocks are easy to cut, laying from them is not difficult. Aerated concrete easily lends itself to almost any external and internal decoration. Do not discount the fact that aerated concrete is a relatively inexpensive material. All these factors contributed to the fact that aerated concrete blocks became quite popular among builders.

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It is believed that houses made of aerated concrete blocks are warm, environmentally friendly, fire-resistant.

Aerated concrete, one of the varieties of aerated concrete, is a porous material obtained using a special technology using a finely dispersed solid component, water, a binder and a blowing agent. The properties of aerated concrete blocks are the same in all directions, which allows them to be given not only the required dimensions in accordance with the construction project, but also to give them any shape that satisfies the most daring aesthetic requests.

  • 1 Tool options
  • 2 Special equipment
  • 3 Manual
  • 4 Saber
  • 5 saw
  • 6 Belt
  • 7 Plane for aerated concrete
  • 8 Cutters for aerated concrete (wall chasers)

Saw

A relatively inexpensive tool with which you can cut aerated concrete blocks and perform various operations. The saw is equipped with cutting blades for precise and approximate cutting. Good technical characteristics make the saws widely used in household construction. Modifications used to cut aerated concrete blocks are produced by both domestic and foreign manufacturers. The cost ranges from 1,500-5,000 rubles.

Saber

The advantage of the reciprocating saw is the high cutting accuracy of both reciprocating and straight.

This handheld electric saw, powered by a network, easily cuts aerated concrete. Cutting element is a blade that makes rotational-translational movements. The working stroke is its movement along a straight mowing line with forward movement. During the return stroke, the blade rises. In its shape, a reciprocating saw resembles an ordinary electric drill or a large jigsaw. This tool has two movable cutting blades and one fixed, in the middle, which serves to strengthen in the place of the cut.

An important advantage of such a saw is the high cutting accuracy of both reciprocating and straight cutting. If we compare, for example, with a chain saw, then the cutting accuracy will be an order of magnitude higher, and its width is much narrower than from a chain.

The execution of saber ones differ in such indicators as

  • Cutting blade length;
  • Electric motor power.

The reciprocating saw has two different operating modes: straight cut and reciprocating. Each mode can cut both straight and inverted.

Such a tool can be used as a hand saw, directly at the workplace. Using a reciprocating saw, you can adjust the blocks to the desired size, make grooves for cable networks. To get a straight cut line, you must first make a markup with a pencil, ruler or angle. The modern construction market offers a lot of different models of reciprocating saws, their cost depends mainly on power and performance. The approximate range of is from 2,500 to 12,000 rubles. Most often, the delivery set includes additional tools and accessories, for example, a corner, spare blades, removable handles.

Manual

The special feature is that the cutting blade is made of carbide metal.

A hand saw or a hacksaw for aerated concrete is widely used for small volumes of work, and it is also difficult to do without them directly at the construction site. With the help of a hand saw, additional blocks are cut, door and window openings are adjusted. In addition, it is necessary when laying the finishing rows of walls or corner places. At the same time, to ensure the best quality of the work performed, additional tools and devices are needed:

  • A metal corner used to control the correct cutting;
  • With angular and other forms of sawing, you cannot do without a regular ruler and a pencil;
  • To level the surface of the masonry, you will need a special plane for aerated concrete.

As noted above, aerated concrete is a fairly hard material, therefore, a distinctive feature of hand saws for aerated concrete is that the cutting blade is made of carbide metal (high-carbon steel), the teeth are larger than those of hacksaws for wood. The best models for aerated concrete have teeth made of cermet hard alloy (monocarbide, tungsten and cobalt will win), have a higher wear resistance. The hand saw with victorious teeth is designed for processing approximately 25 cubic meters of aerated concrete blocks. Good wear resistance for rapid blades.

Hand saws are available in two versions: with one handle (the form of a conventional hacksaw) and with two handles. The second option is more convenient and easy to use. These tools come with replacement blades. The cost ranges from about 250 to 1500 rubles. The price of a hand saw depends on the manufacturer and on the technical specifications.

Tool options

There are a lot of options: from a simple hacksaw for metal to special ones designed specifically for working with this material.

Aerated concrete, like wood, can be processed with ordinary hand and power tools: saws, drills (drills) and cutters. Aerated concrete is cut into any shape and at any angle, you can make any bevel and slope, process blocks of any shape. It is quite easy to make channels for cables and pipes using a hand tool, and if the volume of work is large, you can also use a power tool.

Aerated concrete is a hard material, the speed of the chain is high, which is the reason for its rapid wear. The chain, no matter how sharpened and taut, in the process of work relaxes and begins “beat”. Because of this, the cut is not very smooth and quite wide. When building houses from logs, this does not greatly affect the quality of work, so chain saws can be classified as carpentry tools.

Aerated concrete wall model.

Practice shows that aerated concrete can be cut with the most ordinary hand saw. This method is suitable if the amount of processing is small. It is quite difficult to saw with an ordinary hacksaw, since it is still not quite suitable for cutting aerated concrete blocks. In addition, conventional saws designed for woodworking quickly grind on aerated concrete. However, if we are talking about the construction of a small building: an extension, a utility room, a temporary structure and several blocks will have to be cut, then there is no point in buying a special tool.

If you decide to do with small forces, aerated concrete blocks can be cut with a homemade saw made from ordinary “Soviet” saws for wood. On it, you need to cut an angle grinder large teeth and make a divorce with pliers. A small cut can be made at the tips of the teeth. This does not require sharpening, but it wears out rather quickly. But the saw can be rebuilt as needed. This cuts aerated concrete quite easily, but it is poorly suited in cases where very even filing is needed, for example, for blocks that are placed on glue. And for masonry on cement mortar, this cutting method is quite suitable.

READ  How to Make a Hole In Concrete Without a Puncher

Tape

For large volumes of construction, a band saw is used. This device is characterized by a significantly higher productivity than a hand tool, the ability to make a smooth cut, which is necessary when laying walls on glue. The performance of a band saw is about 20 times higher than that of a hand-held power tool, aerated concrete blocks can be cut into several pieces at once. The cutting blade is made of carbide material, the height of the working surface is adjustable. The cost is about 5,000 euros.

It is a multi-bit tool, which is a radial steel strip with teeth on one side. Such a tape is used in a special tape saw machine. Such a machine allows you to cut aerated concrete rather than a hand saw, alas its price is high. The blade is made of hard alloy metal, the height of the working surface of the machine is adjustable. The tension of the cutting blade occurs automatically, which increases the cutting accuracy.

The cutting blade is guided by ultra-precise rollers. There is an option to work for a long time without stopping, because the waste is rapidly removed through the gap in the machine. The cutting blade is of course simple and quick to change if necessary. The machine is easily transported using wheels. For greater durability of the machine during operation, use stops.

Diagram of a chaser for cutting aerated concrete.

Wall chasers are manual and electronic.

The electronic tool has a rotary body with multiple incisors. You will like the rotary disc with a diameter of up to 150 mm, it is fixed in the same way as on a grinder. In order not to make huge efforts, there are rubber rollers that move along the working surface. The rotation of the cutters occurs with the help of an electric motor, which is possibly of different power.

What is needed, the main tools with which you can immediately cut aerated concrete are considered.

new tools are emerging now. Alas, the listed ones are already tested and reliable. Using them, you can be sure of a high quality result. The main thing is to make the right choice of tool before cutting aerated concrete blocks.

We cut aerated concrete with a hand saw

For small volumes of work, a hand saw with a thick blade made of a hard metal alloy with sintered metal teeth or a rapid one is used to cut blocks. To make a high-quality even cut of the aerated concrete block, in addition to the hand saw, use a corner.

The required size of the fragment is noted on the block, then a corner is applied and the block is cut. To ensure good adhesion with the adhesive, the cut side is sanded with a sanding float. For the convenience of work, choose a saw with a long blade and two handles.

How to quickly cut a gas block?

How to Cut Aerated Concrete Blocks. XL-INFO.RU

For the construction of a house, they often began to choose such a building material as aerated concrete. However, how to cut aerated concrete blocks? These are porous, alas, strong blocks, which include cement, lime, quartz sand, gypsum stone, aluminum powder and water. Light cellular material emerges from the connection of these components. When laying the walls, the blocks are chosen strictly according to size, so as not to violate the strength and thermal insulation of the wall.

Varieties of aerated concrete blocks.

Aerated concrete is cut with a hand saw. Its design is the same as a conventional saw for wood, alas, the thickness of the blade is much more than just that, when cutting hard blocks, to prevent deformation. Such a saw is mainly used when the volume of work is small, differently when laying corner places. It is also comfortable to use it to adjust door and window gaps. For convenience, before cutting on the block, using a ruler and a pencil, outline the cutting line.

The saw blade is necessarily made of hard metal. If the canvas is long, there is an option to cut the blocks both across and along. The teeth must be rapid, as it is also called from a hard alloy cermet. Having a hard alloy solder on each tooth will make it much easier to work with. Such a saw will have greater wear resistance, it will better transfer loads when cutting aerated concrete. You will like this saw with one handle or for more convenience has two handles.

Diagram of a chaser for cutting aerated concrete.

When cutting blocks of aerated concrete, it is very difficult to obtain a perfectly flat surface. In order to level the surface as much as possible, a special plane is used when laying the walls. Its wooden base contains segments from a saw with fine teeth of hard alloy. The segments are set at an angle, which allows them to thoroughly clean the unevenness on the blocks. If the teeth are dull, they can be easily sharpened with a triangular file. It is used on each row of masonry, while it is possible to reduce the consumption of adhesive.

A wall chaser is another tool that is used when building a house from aerated concrete blocks. With its help, you can easily make different grooves and grooves in a porous material. These grooves will then hide electrical wiring or piping. The tool has a double-sided cutter that bolts to the hand holders. The pressure on the cutters is evenly distributed due to the two handles, and the work can be done faster, with high precision.

Before cutting the aerated concrete blocks, make the necessary measurements and use a ruler to mark the aerated concrete block with a pencil. For convenience, when the tool moves, a rail is placed under it. The cutting element is made of carbide with additional diamond coating.

The electric tool has a rotating body with multiple incisors. The rotary disc can be up to 150 mm in diameter, it is fixed in the same way as on a grinder. In order not to make great efforts, there are rubber rollers that move along the working surface. Rotation of the incisors occurs with the help of an electric motor, which can be of different power.

So, the main tools with which you can cut aerated concrete as quickly as possible are considered.

and more new tools appear these days. But the listed ones are already proven and reliable. Using them, you can be sure of a quality result. The main thing is to make the right choice of tool before cutting aerated concrete blocks.