Cutting of floor slab can be executed by means of the Bulgarian with disk on stone. There are two ways of the machine cut: longitudinal and cross. In many respects these works are identical, but in case with the first carry out cut only in those places where there are emptiness.
It is required to you
- - Bulgarian
- - disks on stone and metal
- - sledge hammer
- - perforator
- - respirator
- - safety glasses
- - gloves
- - bar
Instruction
1. Most often need to cut floor slab arises in case of superstructure of the second floor or penthouse when it is necessary to make pass and to establish ladder. But happens and so that it is necessary to change the plate size before its installation or to punch opening in the lower overlapping for access to underground space.
2. First of all it is necessary to prepare workplace and to have available the necessary tool and components. During cutting of concrete, a lot of dust will be inevitable therefore it is desirable to stock up with respirator and safety glasses. Also dense gloves with the rubberized working surfaces will be required.
3. It is necessary to know that longitudinal cutting of concrete slab differs from its cross shortening. And when forming opening it is required to perform both of these operations, that is in turn to use two options of cutting. Principle of work following: on the surface of concrete do the deep cut corresponding to the line of marking, then beat off all superfluous or break out.
4. Crosscutting is made as follows: chalk carry out marking, along edge of the line establish support (bar, thick metal pipes). Further by means of powerful (not less than 2 kW) the Bulgarian and disk on stone carry out cut which has to pass behind the line of marking, is closer to the cut-out piece. After the cement layer is passed, the Bulgarian put aside, by means of sledge hammer (perforator, hammer pick) begin to punch plate. Soon concrete will begin to collapse. When armature and wire are bared, in the Bulgarian establish disk on metal and cut off bars.
5. Longitudinal cutting is made only in those places where emptiness are located. By the Bulgarian with disk on stone do has drunk in the area of marking near the established support. During operating time it is forbidden to be under sawn off by part of plate as it at any time can collapse. When concrete is cut through to the level of emptiness, its surplus removes, breaking plate sledge hammer. In this work it is possible to use the perforator with the "pick hammer" mode.
6. If in overlapping it is necessary to make the hatch, it is extremely desirable that it was located on joint of two plates: the opening in the middle of any of them considerably will reduce bearing capacity of overlapping. If by own efforts from sharp plate not to cope, it is possible to address professionals. It carry out cuts by the special stenorezny machine equipped with disk with diamond covering.