How to cut expanded clay blocks?

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8 (115658) 8 15 115 5 years

Are they being sawed? we chopped them with an ax
Well, if you want it beautifully, probably with a disk on the stone. Stone after all) Large flex.
I don’t recommend using a hacksaw, you’ll dull it instantly. But if you don't mind...

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7 (92208) 34 176 787 5 years

Cutting large-format wall blocks is an inevitable process when building walls. Blocks have to be cut when constructing window and doorways, pediments, and in the process of erecting a solid wall you cannot do without cutting. Various tools are used for cutting, and which tool is suitable for what depends on the type of blocks.

Expanded clay concrete hollow blocks can be cut with a grinder (angle grinder) with a cutting wheel diameter of 230 mm. The cutting wheel must be segmented metal with diamond coating on the cutting part. If you use a non-segmented cutting wheel, it can fly apart during sawing due to overheating; this does not happen with a segmented wheel, since the slots in it allow the sectors (segments) of the cutting wheel to freely deform when heated. The disadvantage is that the cut is only 55 mm deep, even if you cut through the block from all sides, you will eventually have to chip it off, but having slots around the perimeter, this will be quite easy to do. You can insert an ax into the slot and hit it with a hammer, or you can put wooden block and forcefully lower the block onto it with a cutting line - a fairly effective way.

It is better, of course, to cut expanded clay concrete blocks with a DeWalt alligator saw for cutting bricks. DeWalt also has a whole series of “alligator” saws for cutting foam concrete, brick and large-format Porotherm ceramic blocks. The DeWalt alligator will do an excellent job not only with blocks, but also with bricks, so if funds allow, then it is better to purchase this one. There are also Russian analogues of such saws, for example, the Perm “alligator” is several times cheaper than the Devoltovsky one; in terms of a professional tool, it may not be suitable, but I think such a saw should be enough for one house.

Foam concrete blocks can be cut with a special hand saw for cutting foam concrete - a hacksaw with a thick metal blade and carbide tipped on the teeth (similar to a hacksaw for wood). This hacksaw cuts quite well, the only downside is that cutting, or rather sawing, will have to be done by hand, and this is a considerable waste of time and effort, although if there is no hurry...

The best tool for cutting will also be the DeWalt alligator, but its price greatly limits its purchase of this instrument in Russia. Many people adapt to cutting foam blocks with Russian “alligators” or simply with reciprocating saws, which are several times cheaper than alligators, using special saw blades for cutting foam blocks (including blades for alligators, which are sharpened for the desired type of fastening).

Porous ceramic blocks of the “Porotherm” type can only be cut with an alligator saw. A reciprocating saw is unlikely to cope here, but I don’t recommend extreme sports with an angle grinder - I cut tin in a respirator and safety glasses in the heat. In principle, you can cut with a grinder, but it will be a very long and tedious process with constant, very careful chipping off of parts that interfere with cutting, plus a huge amount of dust and small fragments that fly under clothes and into shoes. By the way, manufacturers of ceramic blocks recommend the “alligator” from DeWalt, I think that it is not in vain that they recommend it. The price is steep, but the saw is worth it, especially if you are a mason and you need it for work.

If you need to cut a block into two equal parts along the length (the width of the wall), and the quality of the cut is not important, for example, for laying floor slabs around the perimeter, then you don’t have to cut the block at all, but simply split it. For these purposes I used a blade from an old hacksaw and a hammer. Due to the voids, the block is split quite easily; each internal partition is pierced sequentially, one after the other - as a result we get two front halves.

Never use a chainsaw to cut blocks, even foam concrete ones. Not a single chain will withstand it, even if you cut foam concrete, and the dust from cutting will simply kill the chainsaw mechanism - grains of sand will get into the gearbox, the gears and bearings will simply begin to wear out.

from the middle class, take Chieftec, FSP, they really performed well and work at the declared power and in some cases even exceed it, and the price is more or less affordable.

Forget about Codegen altogether, Chinese consumer goods are hollow, the power in them does not correspond to reality, that’s why they cost 10 lats

The capacitors may have dried out. From the heat.
It’s strange that the plugs were knocked out - there are 2 fuses in the blocks - fusible and semiconductor.

Take it apart and see what burned - this will give you a picture. Yes, and sometimes there are cockroaches in them. They crawl under the board itself, which is screwed to the block body inside it. The contacts are closed (the high frequency of 20 kHz at which the unit operates passes through the cockroach more easily than the 5 Hz network). The insect is fried, the block is burned.

Perhaps the voltage fuse (the green flat disk with contact wires) has broken and closed the circuit - this happens due to surges.

When you turn on the vacuum cleaner, when the refrigerator motor turns on, there are interferences in the network above 230 volts.

The only yellow ones are the transformer tapes... Throw away the block. Don't fix it. More valuable to yourself. The next one you buy costs 24 lats. It will be better. Now they all come with improved cooling, blowing from below, and it is quieter, and their pulse former chip is more advanced.

It seems to me or is this the most banal laptop charger? No stopudoff stores have it

Everest is not exactly a power supply, but you can test the heating;)

» Questions and Answers

Question 1. According to my design, I have hollow-core floor slabs, will the blocks withstand this load?

(Olga Sobchak)

Expanded clay concrete blocks (expanded clay blocks) are used as load-bearing structures up to 3 floors inclusive.

The slabs are installed on a pre-prepared monolithic belt, which evenly distributes the load on the walls. Monolithic belt according to SNiP it should be 200 mm high. The formwork is set up, reinforced and filled with M-200 concrete. Therefore, you can safely buy expanded clay concrete in such cases.

Some private developers are running row three of solid brick, it is also used on the base.

Question 2. During the construction process, does the expanded clay concrete block need to be protected from moisture like a gas block?

(Markov Alexey Maksimovich)

The main difference from aerated concrete is the greater moisture transfer of expanded clay concrete. Practice shows: even if it gets wet in the rain, snow or hail, the sun will come out and it will return to its original form and gain even greater strength! So in the climatic conditions of Perm and Perm region This feature of expanded clay concrete blocks is one of the key factors ensuring reliability and durability.

Question 3. What is the minimum wall width allowed to make the house warm and cozy.

(Alexey Burkov)

The minimum wall width is 400 mm with high-quality masonry and ideal filling of vertical and horizontal joints to avoid cold bridges.

You can consider options 450 mm and 500 mm and others. If the wall is laid out in half a block of 200 mm, then insulation is required (ursa, expanded clay, penoplex, etc.).

We also do not forget that the building must be heated and there must be forced and exhaust ventilation.

Question 4. What cladding is used for your blocks? Do you need to plaster on a grid?

(Ovchinnikova Elena Alexandrovna)

There are several cladding options:

Facing brick.
Plaster (expanded clay concrete has excellent adhesion). Additionally, it is recommended to add lime paste to the plaster solution so that the solution becomes more plastic and the plaster does not crack after drying. The optimal layer of plaster layer is 20 mm. The use of a mesh is inappropriate.
Facade putty. Used on evenly laid walls. It is applied over a plaster mesh with a thickness of 2 to 4 mm, or according to the instructions for using the putty on the primed surface of the block.
Blockhouse
Siding
Porcelain stoneware slabs
Natural stone.

The use of expanded clay concrete blocks (expanded clay concrete) gives you a huge choice finishing material. You can buy any of the above cladding products
.

Question 5. Tell me what you can use to cut an expanded clay block; if necessary, use half a block to finish the wall.

(Dmitry Pavlovich Mironov)

The easiest way is to take a grinder with a diamond wheel with a diameter of 230 mm. The result is a neat, even cut.

All questions were answered by a specialist from the department of industrial and civil construction, Viktor Khasanovich Bakaev.

Ask your question

Send your question about expanded clay concrete block to us - we will try to answer it and publish it here.

If you are planning to replace or install new windows, you will need to learn the installation process. It all depends on how you will install the windows: either with your own hands or by hiring a third-party company. It takes approximately 4 hours to dismantle and install the structure if you do not have experience in this matter. For a company employee who does this often, such work will take no more than an hour. But installing tilt-and-turn windows yourself requires some construction skills.

Window system components

Before you begin installation, you need to understand the nuances and details. First, you should find out all the names of parts and materials. The main load-bearing part is the frame. In the version of plastic windows, its production is carried out from plastic profile, which can be single-chamber, double-chamber, etc. A special insert is placed in the center of the structure to ensure rigidity. In plastic systems, this insert is made of plastic; in metal-plastic systems, metal is used.

The profile system is assembled from 2 or more chambers

In addition, the profile is divided into classes: premium, standard and economy. All profiles manufactured at the plant are subject to certain standards. If you want to make a choice in favor of good tilt-and-turn windows, take the standard class. In terms of color, white windows are most often found, but other colors can be used: wood, brown. Products made from colored profiles will be more expensive than white ones.

Components of a plastic window

Main element window block - frame

The design of a plastic window includes the following parts:

frame – the main structural part;
if you have a large window, most often it is divided by a vertical partition, there may be several of them - it all depends on the choice of design;
the part that is motionless is called blind, and the part that opens is called the sash;
double glazed windows can be with different properties, for example, tinted, energy-saving, reinforced, using inert gas. In addition, they are single-layer, two-layer, three-layer or multi-layer - the choice is great;
In order for the glass to hold securely, they are pressed with a bead, which is a thin plastic strip. Used for sealing rubber seal, most often black;
fittings are always used - this is a special set of tilt-and-turn mechanisms that help open and close the doors and provide various functionality;
in addition, seals are needed to ensure the tightness of the entire structure;
Ventilated holes for drainage are made on the inside of the frame, which are covered with caps. Moisture generated by differences temperature regime on the street and inside the room, gets out through them;
another part of the structure is the ebb - it is mounted outside, and the window sill is installed from the inside;
parts located on the side of the frame are finished with slopes.

Is it possible to install the window yourself?

There is an opinion that installing windows in a house or apartment is a rather complicated procedure. It must be said that this is not so. What do you need to know during installation? To perform these works, you do not need special professional tools and equipment, or vast experience. The procedure includes two main points:

dismantling the old window block;
installation of a new window.

Removing an old window takes an average of 1.5 hours

If we talk about the time required to complete the work, the first stage will require approximately an hour and a half. Installing windows yourself will take less than three hours. It must be said that if you nevertheless decide to opt for the services of specialists, then you should demand certain guarantees from them.

If you installed the tilt and turn windows yourself, this will void your warranty. In this case, it is necessary to purchase structures directly from a manufacturer who has been working on the market for a long time, has good reviews from clients. If you decide to buy single-chamber or double-chamber windows in winter period, you can always count on a significant discount.

When a window is purchased from a company that carries out installation work, then the customer has a warranty on the fittings for about 5 years. At self-installation You can obtain a warranty directly from the manufacturer, that is, at the place of purchase.

In order for the windows to be installed in brick house, cinder block, gas block or apartment, you must first order a tilt-and-turn or blind structure from the manufacturer, and this requires accurate measurements.

Step-by-step instructions for correct measurements

When you place an order, you will be asked to indicate the following dimensions: the width and height of the structure, the width and length of the slope and window sill.

Before ordering a window, you must take correct measurements of the structure.

Before you start measuring, don't miss important point– what type of opening do you have: with or without a quarter. Look carefully at the window opening: if the outer part is narrower, it means there is a quarter-sized opening in front of you. The measurement is carried out as follows: you need to measure the narrowest part, you will need to measure in several places, find smallest value, add 3 cm to it. The height is indicated as is. If your opening is even, then the measurements are done as follows: after measuring the width, subtract 3 cm; measuring the height, minus 5 cm. Read a detailed article about.

Before taking measurements, you need to determine the type of window: with or without a quarter

To determine the size of the window sill, you need to add about 10 cm to the width of the opening inside the window. For low tide, the same is done, only along the outer part of the window. Everyone chooses the width for the window sill for themselves: it is better if it protrudes slightly beyond the radiator.

In addition, when placing an order, you need to decide which components your design will be made: what options for two-, three- or single-leaf windows do you need, how they will open, on which side the capercaillie is located. Don’t forget to decide on the type of fittings (handles, locks, ventilation mechanisms).

If you order several designs at the same time, then the width of all openings may be different, but the height should be the same, you need to choose the most small size. Please note that window openings can be located at different distances from the floor. In apartments, the distance from the floor to the window is approximately 80 cm, while on the balcony the windows can be from the floor. Accommodation in a private house can generally be anything at the discretion of the owners.

Features of measurements for glazing balconies

To determine the width of the glass structure, it is necessary to measure the length of the part of the balcony on which the balcony window will be installed, minus 7 cm on each side. This distance will be required for installation corner profile, to which the structures of the side elements of the balcony are attached. The height is calculated as the distance from the support to the roof on the balcony or loggia, and a tolerance of 3 cm must be subtracted for the gap.

How to correctly measure windows in a country house

For correct measurement size of the structure in a private house, knock out part of the slopes on both sides. Very often it turns out that the window opening is much larger than the window that is installed in it. This means that when the structure is dismantled, some of the materials with which the space was filled will also be removed.

Preparing to install a window structure

After you remove the old window, you will need to inspect the resulting opening, remove all parts that may fall off or collapse; if there are protruding elements, they should be knocked down. Then clean the opening from construction debris and dust. If there are large depressions, it is better to cover them with cement. You can also treat everything with primer.

The base will need to be cleaned before installation.

Having finished working with the opening, you need to prepare the PVC window, which is to be installed. To do this, you need to remove the window sashes; if it is solid, double-glazed windows. If your frame has small dimensions, then you can install it without removing the double-glazed windows and sashes. The outer part of the frame should be freed from the film that protects it.

Installation Technology Guide

Ready plastic window is brought into the opening, placed on support blocks and leveled horizontally. After this, using a level, the window is aligned vertically and secured in this position with spacer blocks.

Installation of both fixed windows and opening sashes is the same. There are two options for installing windows: with and without expansion of the structure. When using the first option, holes are drilled through the frame, through which they are driven into the wall. anchor bolts. This method is more complex and more reliable.

When installing a window using the unpacking method, holes are drilled in the frame and wall, into which anchors are then driven in.

Places for attaching anchors and support blocks

If the installation is carried out without unpacking the frame, the window is fastened using special ones, which are attached to the profile and then to the wall. This option is faster. However, it must be taken into account that under significant wind loads, the frame structure may warp or it may sag. If you decide to mount it on a plate, you should choose thick, wide options. Please note that if the region in which you live has a strong wind load or windows will be installed at a height, then you should use the option of unsealing the frame.

Mounting on anchor plates

There are nuances to placing a window in the opening. If the walls are made of foam blocks, brick, cinder block, gas silicate or concrete, then the frame is placed 2/3 deep from the internal thickness of the opening. If the walls are insulated with foam plastic, then the fastening must be done before the insulating layer. When insulating and facing with bricks, the window is installed in the insulation zone.

It is very important to choose the correct installation depth

The installation sequence must be followed:

Having inserted the frame, level it using support and spacer blocks;
then attach it to the wall;
after installing the structure, it is necessary to assemble the window;
then you need to check the normal operation of the shutters and all mechanisms; to do this, open and close the window;
after everything has been checked, the doors must be tightly closed and the gap around the structure must be sealed. For this purpose they use .

However, it must be remembered that in direct contact with sunlight and external environment the material loses its properties and collapses. To protect it, you need to create, this can be a special film that needs to be glued to the outside and inside of the window. After the foam has dried, it is necessary to finish the slopes on both sides (external, internal) of the structure. You can open the window a day after blowing the gap with foam.

To be fulfilled correct installation both on windows and, follow simple rules:

we install the ebb from the outside in a special slot in the frame or attach it to it with self-tapping screws;
the window sill is installed as follows: it is necessary to trim it from the edges so that it fits the width of the window opening and rests against the end of the stand profile;
the level is leveled using special pads, after which the space under the window sill is blown with foam or filled with mortar.

According to the principle described above, windows are installed on a balcony or loggia, in brick or concrete walls. However, keep in mind that the entire weight of the window structure will be carried by the parapet, so you need to strengthen it.

Mistakes you can make when installing windows

There are a number of points that you should pay attention to when installing the structure so that it has a long service life:

you cannot install the window with the glazing beads facing outward, as this reduces the structure’s burglary resistance, since the glazing bead can easily be pulled out and the glass unit removed;
you need to be careful about leveling the structures when installing the window, otherwise opening and closing the sashes will be difficult;
It is imperative to protect the polyurethane foam from direct contact sun rays to avoid its destruction;
it would be wrong to choose to fix the frame structure only polyurethane foam: It is imperative to attach it to the wall, otherwise it may simply fall out.

By following all installation rules, you can successfully install window design yourself, and if you seek the services of professionals, you will be able to monitor their work at any stage.

When constructing buildings and structures from expanded clay concrete blocks, it becomes necessary to saw them. Let's look at how to cut expanded clay concrete blocks and determine the most optimal method.

Expanded clay concrete is a fragile material. Therefore, not all tools are suitable for cutting it. chop it up with an ordinary ax not always justified and safe. It is better to use special tools.

Hand saw

Many builders, when deciding how to cut expanded clay concrete blocks, opt for a hand saw. For cutting, a tool with a thick metal blade and special hard-soldered tips on the teeth is used. But for processing large quantity blocks, this method will not work, since cutting with a hand saw takes a long time and requires maximum effort.

How to cut an expanded clay concrete block, spending less time and effort? Some builders recommend using reciprocating saws.

A reciprocating saw is a type of power saw that cuts materials using a reciprocating motion of the blade. They are also called electric hacksaws, as they resemble a hand saw

To work with expanded clay concrete blocks, the reciprocating saw blade is the same as a regular saw hand hacksaw, must be made of hard alloys and have soldered teeth. Recommended length 400 mm tooth pitch 12.7 mm. These characteristics correspond to the Bosch S 2041 HM blades. Builders recommend purchasing reciprocating saws from this company for working with expanded clay concrete.

You can also purchase power tools from Makita. A popular model for non-professional use is the Makita JR3070CT. The average cost of which is 16,000 rubles.

Alligator saw

What do professional workers cut with? Builders use special kind electric hacksaws - “Alligator”. An electric hacksaw has two saw blades that move back and forth, imitating the movements of a crocodile's jaws.

The tool is very popular among builders due to its advantages:

Provides a straight cutting line
There are no vibrations during tool operation
When the mechanism jams there is no reactive recoil
Sawing blocks of any thickness
Convenient to work in hard-to-reach places.

Answering the question of what can be used to saw expanded clay concrete blocks, we can confidently answer that an electric hacksaw is good option. But the Alligator saw also has some disadvantages:

High price
Cuts into the surface only from the edge
The cutting accuracy is lower than, for example, that of a circular saw.

When choosing an alligator saw model, it is better to choose tools from Bosch and Dewalt.

The Bosch GFZ 16-35 AC model is popular, which has a number of advantages:

Has electronic system stabilization
Hard tire
Start blocking
Second handle (for left-handers)
The ergonomic design of the model ensures ease of operation and lack of fatigue
Replacing discs without tools.

Builders also often purchase the Dewalt DWE 397 model. This electric hacksaw has the following advantages:

A magnesium alloy is used to make the gear housing, which removes heat and dampens vibration
Electronic system ensures optimal cutting speed
Removing your fingers from the trigger button stops the tool in a second.

Let's look at a comparison table of these models

Model	Power	Number of double strokes per minute	The amount of blade stroke	Guide bar length	Weight	Average price
Bosch GFZ 16-35 AC	1.6 kW	800-2500	50 mm	350 mm	5.2 kg	35,000 rub.
Dewalt DWE 397	1.35 kW	3300	38 mm	425 mm	4.3 kg	21000 rub.

To save money, you can purchase Russian or Chinese electric saws. But the cutting quality will be significantly lower, and such tools will last less .

Bulgarian

Bulgarian (angular grinder) - variety circular saws. The working body of the tool is a disk with a radius of 230 mm. To work with expanded clay concrete block I use segmented diamond discs.

You cannot use other types of disks, otherwise they will heat up and burst when deformed. Which may lead to injury.

This is the most suitable option, according to many builders, for cutting expanded clay concrete blocks. The tool provides high cutting accuracy.

But there are also disadvantages. The grinder is capable of sawing a hole limited by the radius of the disk. Therefore, the blocks are cut to the maximum possible depth and split.

Most often, a block is split in 2 ways:

An ax is lowered into the cut and hit with a hammer.
The block is lifted and forcefully lowered along the cutting line onto a wooden beam.

When cutting expanded clay concrete blocks with an angle grinder with a diamond disc, a lot of fine dust is generated. Therefore, it is necessary to protect the respiratory system and eyes. It is recommended to take breaks while working so that the dust has time to settle a little.

You cannot cut expanded clay concrete blocks with a chainsaw. The tool chain will not support the load. And dust will get into the gearbox, bearings and gears. Which will lead to their abrasion. For cutting, it is better to use a grinder with a disk diameter of 230 mm and a weight of up to 6-8 kg.

When choosing a grinder model, we look at the availability of parameters:

Speed adjustment
Soft start
Dust collection (has a casing)
Additional handle included (for more comfortable holding of the tool).

Popular models include sanders from Makita and Husqvarna.

You can purchase a cheaper model made in China. For example, the Total TG1242306 grinder is in demand. The model has a disk diameter of 230 mm and a power of 2.35 kW. Comes with the tool protective cover and an additional handle. The manufacturer provides a 24 month warranty for its product. But this model is less reliable.

Often consumers have a question: is it possible to split the block instead of sawing it? If the quality of the cut does not matter, but it is only necessary to divide the block into two parts, you can split it. To do this you will need a hammer and an old hacksaw blade.

Often, when constructing buildings made of expanded clay concrete, it becomes necessary to cut holes in the blocks for dowels or anchor bolts.

Since expanded clay concrete is a fragile material, the drilling process must be carried out extremely carefully. To do this, you can use a carbide-tipped drill. A hammer drill will also work. But they should work without the chiselling mode. For through holes You can use an impact drill.

Answering the question of what is used to saw expanded clay concrete blocks, it should be noted that there are 4 types of tools most often used for these purposes. Which have their advantages and disadvantages. Choice optimal option depends on the volume of work and the budget planned for construction. The right choice tool will ensure efficient processing of the material.

In this article we will talk about how to cut concrete wall and how to cut a concrete slab. Moreover, we will bring to your attention those methods that will allow you to cope with this task simply and relatively quickly.

Cutting concrete structures is a task that one has to face when carrying out major repairs with elements of redevelopment of premises, in the process of laying certain communications, as well as in the course of correcting errors made during the manufacture of reinforced concrete products.

Common Methods

Since the first reinforced concrete structures appeared, the need for cutting them arose, and the development of specialized equipment designed to perform this work began.

There is a wide range of concrete processing methods on the market; we list the most relevant ones:

punching;
use of an angle grinder (angle grinder) “grinder”;
using a chain saw;
cutting reinforced concrete with diamond wheels using specialized equipment.

Using a rotary hammer

In the photo - cutting down concrete - time-consuming and ineffective

- this is the most affordable way, since many compatriots in household there is a more or less powerful impact drill.

Concrete cutting is carried out as follows:

holes are drilled along the contour of the future cut using a drill with pobedite surfacing;
then the material is cut down along the intended contour and selected with a chisel.

Among the advantages of the method, one can note the ability to do it yourself using available equipment.

However, there are significant disadvantages, including:

the presence of impact on the treated surface;
high noise level;
dust and dirt;
impossibility of working with reinforced concrete;
low accuracy of the contour along which the cutting was carried out.

Using an angle grinder

In the photo - cutting seams with a grinder

An angle grinder (angle grinder), unlike a hammer drill, is a type of circular saw. This optimal solution for those who do not know how to saw expanded clay concrete blocks or concrete structures with high cutting precision.

Among the advantages of the method, we note the availability of equipment and the low cost of a diamond blade. But along with the advantages, there are disadvantages, including the inability to remove dust in a timely manner, as well as the limited diameter of the disks and, as a result, the ability to cut structures with a small thickness.

Using a chain saw

A chain saw for cutting concrete with an electric or gasoline drive is a more advanced technology, since such equipment can process material to a depth of over 30 cm, depending on the modification.

The equipment is designed to work with unreinforced and weakly reinforced concrete. A special diamond chain is used for this work.

During operation, the chain is subject to significant heating. In order to prevent overheating of the cutting tool, modern saws provide the possibility of supplying water. A stream of water is supplied through a hose to the chain and at the same time cools cutting tool and removes dust.

The chain saw can be used as stand-alone instrument for cutting concrete products, but the greatest operational efficiency of this equipment achieved in combination with wall sawing machines.

Use of gas cutters and seam cutters

In the photo - a compact gas cutter

Cutting reinforced concrete with diamond wheels is carried out with special tools - gas cutters and joint cutters. This equipment operates using segmented laser circles with a diameter of up to 600 mm.

The equipment is used for efficient processing of both unreinforced and reinforced and. In addition, such tools are successfully used for cutting hard granite and marble.

Cutting is carried out at high speeds, and therefore, to avoid overheating, the concrete disc for a circular saw is cooled with water. Without exception, all tools of this type provide the ability to remove dust.

We cut concrete to a shallow depth

Don’t know how and what to cut concrete to a shallow depth? This is not at all difficult and the tool you will need is an angle grinder or, as it is also called, a “grinder”. As a rule, such a tool can be equipped with sintered diamond discs with a diameter of 105-125 mm. If this size is enough, it’s time to get to work.

Important: Using an angle grinder requires the use of overalls and protective equipment, including goggles, gloves and a respirator.

We work as follows:

On the angle grinder, hold the locking button and use a special wrench to unscrew the locking nut on the seat pin.
We put on the disk, following the recommendations for the direction of rotation and holding the locking button, tighten the nut with maximum force.
Draw the outline of the cutting line on the concrete.
We turn on the grinder, and holding the tool firmly in our hands, move it along the surface in the direction opposite to the rotation of the disk.

Important: Make sure in advance that you will not encounter any hidden objects along the cutting line. metal parts which may damage the disc.

We cut concrete to great depths

In the photo - a joint cutter on a wheeled platform

If you need a tool for sawing concrete to great depths, then you need a gas cutter. Essentially it's big circular saw on which a large diamond blade is installed. There are various modifications of the tool available on the market. The main difference between these modifications is the power and dimensions and, as a consequence, the maximum permissible disk diameter.

Important: Working with a gas cutter requires not only skill, but also certain physical training. The tool weighs a lot and this must be taken into account when choosing a particular model.

All gas cutters are conventionally divided into two types:

Modification for dry cutting— does not have a device for dosed water supply.
Modifications for wet cutting— equipped with pipes for supplying water to the cooling casing and to the cutting disc. The price of such a modification is, for obvious reasons, much higher.

Conclusion

If you need to make a hole in a wall, ceiling, or subfloor, you will likely need to use diamond drilling to drill holes in the concrete. But, if you need to cut a window in a solid wall or a hatch in a ceiling, you will need completely different equipment equipped with diamond-coated disks.

In this article you learned about what such tools are and what are the instructions for using them. If you need additional information, you can get it by watching the video in this article.