Concrete is extremely durable and strong material, complex in processing. Concrete drilling is a time-consuming process, requiring special equipment, skills and skills. In this article, we suggest you familiarize yourself with the main rules and drilling requirements.
Content
Features of working with concrete and selecting tools
Instruments:
- Drill.
- Perforator.
- Chisel.
- Hammer.
- Drills (for metal and winning).
- Tooth or diamond crowns.
- Drilling installation (for diamond drilling).
At the moment, most buildings are based on durable concrete slabs. And you will most likely have to face the need to drill concrete walls sooner or later. And considering that the structures often have stones and steel fittings, the task becomes really complicated. Even if you have a winning drill and a powerful drill. In order for the work to be easier and clearer, you must initially select the right tools and explore the step-by-step instructions on which the drilling of holes in the concrete will occur.
The increased strength and reliability of concrete structures implies the need to use specific tools and devices for work. The drilling method must be determined before the start of work, based on the desired diameter of the opening and the presence of reinforcement in the concrete plate. Without prior analysis of the material, it is impossible to drill the hole in the concrete exactly and neatly.
Modern cutting nozzles used in the drilling process allow you to make holes of almost any depth and diameter. They differ in their length and shape. Such nozzles allow you to break through a solid concrete slab without much physical effort. But for drilling holes with a small diameter, it is possible to use the drill or a brown. The cutting nozzles are equipped with a carbide tip, and their rod has a screw shape. Thanks to this, they are able to easily delve into a solid concrete surface.
If you use a shock drill, then you need to choose the borants with a cylindrical shank. The surface of them should be smooth and smooth for better sliding.
Useful information: During drilling, the cutting tools are noticeably blinking. From time to time they have to be sharpened and then continue to work. And if you use winning drills, do not forget that they are susceptible to high temperatures. Therefore, you need to take breaks and give the drill to cool. At the same time, we recommend also lubricate the drill with a special fluid that reduces the heating rate.
In order to do a large hole, you will need a crown for drilling concrete. It is a hollow cylindrical cutting tool. Its key feature is that the entire cut material passes inside the cylinder. Thanks to this, Kern does not interfere with the normal entry of the tool in the stove. Some of the crowns are equipped with special cutting segments or high-strength diamond crowns.
If you use the perforator, it is best to apply crowns with teeth of solid metal alloys. Diamond spraying is necessary in the case when an unstressed drilling with the use of coolant occurs. The big advantage of such a tool is wear resistance. However, during operation, it is still blown up and you will have to restore it. If you drill a small hole, for example, a hole for a socket in concrete, the tool can be kept in your hands. With more complex work during drilling, it is necessary to secure a special drilling rig to the wall using anchors.
Among the most commonly used tools are perforators and electric drills. They are perfectly suitable for drilling holes up to 10 cm. However, the reinforcement in concrete can easily break the drill or teeth. Therefore, we do not advise you to use gear crowns for drilling reinforced concrete structures.
Always first learn the characteristics and features of the drilling tool and material, and then select the optimal option. If you do not have the ability to use the perforator, you can use the shock drill. But consider that the effectiveness of such an order tool is worse. But with small amounts of work, it is enough for you.
Drilling of large diameter - the task is particularly complicated. Here you have to apply the diamond drilling of the holes in the concrete. It is quite difficult to produce it. In addition, you will have to use an unstressed electrical appliance with the possibility of flowing water to the concrete surface at the site of drilling.
How is the drilling process?
In order for all the work to be made with maximum accuracy, follow the instructions below.
Determine which tool you will use for drilling. The shock drill is suitable for creating holes with a shallow depth and diameter, and the perforator at the expense of its highest power and speed will suit for more complex work. But the principle of working with both tools is not much different.
There is a strict sequence at which concrete slabs are drilled:
- Examine where the wiring is in your walls. You may have to turn to the electrician. If it is not possible to designate the places where the wiring is lying, in no case drill at random. This is fraught with serious consequences and is dangerous to health or even life.
- Make markup in places where you will drill holes. Take care so that you have had safety glasses and at least a gauze bandage to protect against dust. The most reliable to use respirators.
- At the drilling points marked earlier, make tags with a standard sharpening drill. This will help you initially correct the drill in the right direction, and it will not slip aside as the first attempt to drill.
- Stones are best broken by a bandwich. Its cost is much lower than the cutting tool for working with concrete, and it is possible to find it in most construction sets. And if not, you can buy it separately at the nearest store of building materials and tools.
- In the process of drilling, every 5-10 minutes need to cool the drill with water. Overheating can cause the deformation of the drill itself, and it is almost impossible to straighten it to a normal state. We'll have to throw and take a new one. The deformed drill can cause significant destruction on the surface of the concrete structure.
- Most likely, sooner or later you will come across the reinforcement or dense stones. Whistle and characteristic ringing of the reinforcement you will hear immediately. The drill must be immediately removed, and instead, it is used to use a disadvantage and replace photostable to the usual, designed to work with the metal.
- When drilling concrete, after every 1.5-2 cm, it is necessary, without turning off the drill, to make inverse movements so that the dust and the garbage formed is poured out of the hole. Thus, almost all the crumb is cleaned, and you will smoothly seer to fittings without damaging the tool. Watch that in the process of drilling you do not deviate from the initial corner installed. Keep the tool firmly and tightly stand on the floor, not crossing.
- To the amount of dust flying around the room, it is smaller, you can make a funnel on a drill or a perforator from a conventional polyethylene film. This is an optional step, but it will protect you from problems with big luster room.
Advice. If you need to make a hole, for example, under the outlet, you can immediately make several small diameter, and unnecessary concrete to cut out with a hammer and chisel. But consider that the edges are likely to be uneven. It will greatly simplify the selection of the crown of the desired diameter. An excellent option is to combine the work of the chisel and the crown. First, make a rough job, and then just adjust the hole with the crown.
Drilling of concrete diamond crowns
This method has a number of benefits over the rest. Diamond drilling provides fast speed, accuracy, low noise and vibrations. The technology is not in vain become one of the most sought-after in construction work worldwide.
The drilling process can occur in different planes and almost at any angle. It does not matter, this is a vertical wall, ceiling or simply a concrete slab underlying an angle. With this method, the depth of drilling sometimes reaches two meters and does not require much effort to work. The diameter that can be drilled reaches 50 centimeters. The speed with which drilling occurs in most cases is from one to six centimeters per minute, which is quite good.
For drilling there will have to use special equipment diamond ring crowns. The drilling installation must be placed on a special bed and secure anchors or a vacuum slab. The process of transporting equipment and its installation is quite laborious, but the work is greatly simplified and occurs with much greater accuracy. In addition, it is possible using a guide to fully adjust the angle under which the hole will be drilled.
When you start the installation, you must wait until it picks up complete speed. During this, the water supply is carried out by pumps to the place where the future hole will be located. Water will cool the surface, the equipment itself, as well as eliminate dust and dirt.
The main minus of such a drilling method is the cost of equipment. About buying it usually can not be speech. Yes, and rent can do it very expensive. Especially if it is really new models with a wide range of functions and capabilities of the accurate setting. But with the correct use of such a diamond installation, all costs quickly pay off due to the highest speed, accuracy and minimal noise that will not be irritating you and your neighbors. Therefore, we advise you to overpay if you need a really high-quality result and a minimum of problems. In addition to the foregoing, we definitely emphasize that after working with such a tool, there is no need to additionally process the holes, and the dust and garbage from it are several times less than when working with a conventional drill or perforator.
And if you seriously configured to independently do holes in the concrete, the tool is the first and most importantly that you need to choose with full responsibility. And then follow the instructions and get a quality result.
