The main component of the base is concrete solution. This material is reliable and durable, it is capable to maintain heavy loads throughout long time.
The principle of operation of the vibrator for concrete
In liquid state the concrete mix has big density therefore at bad batch in it air emptiness can be formed that very adversely affects quality of constructions under construction. For prevention of similar problems on construction sites the special device – the vibrator for concrete is used. This device is intended for production of uniform quality concrete solution.
Before starting production of the vibrator for concrete the hands, it is necessary to understand the basic principle of its work. The main objective of the tool consists the greatest possible quantity of air bubbles and excess moisture of concrete solution at a distance and also in performing additional shrinkage. Use of this mechanism allows to accelerate carrying out construction concrete work considerably. As a result, after vibration influence, concrete mixes grab much quicker – it occurs because quality and volume characteristics of concrete change. Concrete solution becomes more fluid and, under the influence of own weight, is evenly distributed proper that promotes its fuller filling. Without use of vibrators this process takes much more time, and quality of the received concrete leaves much to be desired.
Presently in hardware stores the wide range of vibrators for concrete is provided. It is possible to buy this electromechanical tool, having spent for it certain sum of money, however the hands without big expenses is absolutely simple to make it. As the rotating mechanism it is possible to use normal power drill or the perforator which can be found in any house. The main objective standing at production of the vibrator for concrete solution the hands, this creation of the device transforming rotational motions to oscillatory.
The vibrator for concrete on the basis of power drill
As nozzle the steel pipe with a radius of twenty millimeters and about fifty centimeters long is used. Concrete is corrosive medium for this reason the tube has to be from stainless steel. The internal device of the mechanism will replace reliable rod from steel with a diameter of fifteen millimeters which can be ordered from turners. It is necessary in order that rotational motions from drill were made. The rectangular piece welded on the end of rod from steel will make effective oscillating motions thanks to what there will be vibration. For ensuring free rotation of ready central part of the vibrator, it is necessary to install two bearings in tube. On one end of internal rod it is necessary to drill through hole for fastening of the drive. The term of operation of this mechanism will depend on its security.
Keep in mind that it is necessary to protect bearings from dirt hit by consolidation, as with external, and from the inside.
On the one hand the rod of tube needs to be cut off with release in one centimeter. When choosing bearings give preference to models of import producers. Further it will be required to choose the strong sleeve, further it will be installed for consolidation on one of the ends of the vibrator. It will allow to close rotary path of the mechanism completely. As basis of progressive rotational motion the inner shaft will perform with the clown. Centroid shifts on internal rod will provide vibration on external tube thanks to what this device will work. The sleeve got on external casing of the drive on the one hand and resting on the other hand against the bearing will hold rod tip. To start work it is necessary to connect it to drill and the vibrator is ready.
The vibrator on the basis of the perforator
For this purpose that to manufacture the vibrator for concrete of such design, the perforator with power of electric motor not less than 1.5 kW which will be used in the shock mode will be required. As nozzle the peak which needs to be operet on timbering can use. For optimum connection peaks and timberings it is necessary to use washer from steel. Such self-made vibrator, will give confidence that concrete solution will spread on timbering more exactly. Apply the method called in the professional rodding environment to deep processing. This method to be that for the end of nozzle one more nozzle is welded.
Secret of this method is that length of bayonet has to be equal to depth of the form demanding processing.
Setting this nozzle against form bottom, and periodically rearranging it from one place on another, it is possible to process the big area without effort.