The manufacture of a sturdy ladder made of concrete is ideally suited for private houses. Procurement of materials does not require significant costs, the work can be done on its own. Before the commencement of construction it is important only to draw up the correct drawing, make calculations, and conduct correct preparation. A concrete staircase is built with their own hands without any special difficulties: you only need to take into account the step-by-step instructions and recommendations of specialists.
- Formwork assembly
- Reinforcement of the structure and concrete pouring
- Features of the
- formwork removal Construction of the concrete staircase with your own hands
Assembling the formwork
Before starting work, you need to prepare a shroud for filling the march area. The depth of the stunt should be about 10 cm.
The lower formwork - shields is then carried out. Near the bottom step you need to install a board that will include not only the height of the step, but also take into account the height of the subsequent floor screed.
After pouring with concrete, the thickness of the staircase will be 15 cm.
Reinforcement of the structure and pouring of concrete
The construction will be reliable only in case of correct reinforcement. Therefore, any monolithic ladder made of concrete must include reinforcement with a diameter of at least 10-12 mm. They should be located along the shields at a distance of about 10-15 cm.
Specialists recommend laying the armature in two layers on the landing and at the junction of the ladder march, and not in the same layer as in the photo.
At the top the ladder rests on the stove and the fittings must be driven into it. Between each other the armature is connected by wire.
It is important that downstairs the stair rest on the slab in the place where the wall of the basement passes( this should be taken into account when planning the house).If the support of the march of the concrete staircase is simply on the slab without support from below, then the plate itself may burst, becauseThe weight of the monolithic staircase is impressive.
Side flaps are installed from the board and timber. They are attached to the boards for the construction of steps. The optimum step height is about 17-20 cm, but it all depends on the angle of the ladder, the width of the tread. If desired, the performer can make a concrete staircase to the second floor with slightly smaller or larger transitions. In addition, the boards of the stages are interconnected to create a strong structure.
After the formwork is installed, the concrete is poured according to the following scheme:
- The first couple of stages are filled.
- A similar filling of the steps is carried out right up to the flight span. Then the floor itself is filled with mortar.
- Further filling of the steps up to the slabs of the second floor is carried out.
- Concrete is sealed with a vibrator( it allows to remove air bubbles in the concrete).
In work it is recommended to use concrete of mark M250-300.Before starting work, it is necessary to install auxiliary supports, which will prevent the structure from moving because of too heavy a solution. Manually prepare the required volume of the mixture will be difficult, so you should use the concrete mixer and the helper. When the correct pouring of the concrete staircase is completed, the performer will only need to wait until the solution has completely solidified.
Features of removal of the formwork
In order for the concrete staircase to be manufactured to be completed correctly, do not rush to remove the formwork. Remove sideboards and boards of steps is recommended no earlier than 7-14 days. It is advisable to wait 1.5 weeks - this period will be enough for a good grasp of the solution. After another 1-2 weeks, the vertical supports and the lower formwork are removed. At this stage, the staircase in the house of concrete can be fully used for further construction work.
The above instructions with photos and videos will help to understand how to make a concrete staircase yourself. But it is important to take into account the accuracy of subsequent work. Completely frozen concrete should be sanded, eliminating uneven surfaces. If necessary, you can finish with wood, tiles and other wear-resistant materials. But it should be borne in mind that the load on the ladder should not be significant.
Specialists also recommend installing the bottom pole-support under the site, becausethe platform itself and the junction of the ladder march undergo a bending load.