Construction of concrete stairs includes steps for example designing, preparing foundation, building formwork, placement of reinforcement steel bars, concreting, finishing and curing. Construction of concrete stairs can be a difficult task that will need an engineer to examine all the aspects and design it and a skilled labour to develop it.

Steps for Construction of Concrete Stairs

The followings are the steps involved with construction of concrete stairs,

1. Designing of Concrete Stairs

Designing of stairs requires through understanding of design aspects and site study. The standards that influence the design of stairs are height with the floor, width with the stairs, risers depth, thread width, thickness in the stairs, angle in the stairs, load put on the steps and a lot of other aspects which requires a qualified engineer to style the ideal stairs.

2. Foundation and Support for Concrete Stairs

The building blocks on what the concrete stairs rest shall be properly constructed so your lots of the stairs are transferred straight into ground successfully and also to resist the movement of stairs.

If the plinth beam of building is present at the beginning of the steps, then the reinforcement steels bars can be connected to them that may transfer the loads. If no plinth beam is located, then this small concrete foundation or size stone masonry is constructed.

To aid the stairs at the top which restricts the movement of stairs is often carried out to the top beam or slab.

3. Building the Form-work for Concrete Stairs

The key step when building concrete stairs is by using a suitable formwork. The angle of flight, dimensions of thread and riser can be properly checked. Usually while creating a stairs that come with wall, the road of flight , thread and risers are marked on the wall for correct fixing of shuttering or formwork.

It’s have to be no less than 2” thick, regarding keep the weight of the concrete. The full structure with the form, have to be based on 4?4 posts. The wooden boards are widely-used to produce the steps and they are fastened with several screws towards the lateral structure from the formwork.

Work with a spirit level, regarding guarantee the form is level and plumb, if you need to get yourself a neat look. Are the concrete stairs must be connected to the ceiling.

These steel reinforcement bars are placed from the formwork with the least 25 mm spacing which is tied together.

5. Pouring of Concrete for Concrete Stairs

Pouring of concrete in the formworks is started from the below part to above. The concrete mix plays a crucial role in durability and strength of stairs. Standard mix useful for stairs are 3 parts cement, 2 parts sand, 4 parts gravel and water.

It is recommended to use a concrete vibrator while pouring the concrete to completely fill the gaps of the stairs also to avoid the honeycomb formation.

4. Steel Reinforcement for Concrete Stairs

The concrete steps should be reinforced with steel bars as a way it carries the loads coming upon the stairs and transfer these phones the soil. The number of steel bars and size of the bars is to be calculated by a structural engineers dependant on the loads beginning the stairs.

These steel reinforcement bars are placed from the formwork with at least 25 mm spacing and it is tied together.

5. Pouring of Concrete for Concrete Stairs

Pouring of concrete in to the formworks commences in the below part to above. The concrete mix plays a crucial role in strength and durability of stairs. Standard mix used for stairs are 3 parts cement, 2 parts sand, 4 parts gravel and water.

It is recommended to utilize a concrete vibrator while pouring the concrete to totally fill the gaps with the stairs and to prevent the honeycomb formation.

The project is to be through with great care and patience , as any sudden movements can disturb the alignment in the formworks and even collapse the formwork. It usually is recommended to pour the concrete ceiling and stairs in the fast, about create a strong bond between these elements.

6. Eliminating Formwork

The stairs requires at least 21 days to dry up completely, therefore the removal of formwork would be to done only after 21days. Over these 21 days proper curing would be to carried out to prevents the cracks in stairs on account of thermal expansion.

Following the Twenty-one days, the formwork is taken away with a hammer plus a crowbar. Assist patience, regarding avoid damaging the concrete or even the edges with the stairs.

7. Finishing of Concrete Stairs

As soon as the formwork is removed, the steps can be finished in different ways as per the dependence on making use. It might you should be finished using trowel or float to offer concrete finish, cement tiles, granite could be installed for much better appearance. Even carpet or wood doubles in order to complete the steps.

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