Formwork for the foundation is quite simple. Although there are some subtleties that must be taken into account. Before starting work, you must read the instructions for its installation. The instruction will allow to carry out the work much faster and avoid common mistakes.
Formwork for strip foundations
Formwork is a special collection of parts which is designed to produce monolithic blocks. As applied to the foundation, it can be said that in this case it makes it possible to create that part of it that will be located above the ground.
Decking is of two types:
The first type is usually made of planks or metal. The second type is made of polystyrene foam.
Decking is a standard construction. In other words, all types of formwork are similar in general terms. The simplest design of this type is created with the help of boards, beams and nails.
The formwork for the foundation is usually made from planks . This is an economy option that suits many builders.
Additionally installed props will make the construction more even.
A mixture is poured between the walls of the formwork. Boards can not be removed until the mixture dries.
Today there are ready-made solutions in stores . This formwork has a number of advantages:
The finished formwork, of course, will cost no less. But at the same time the master does not have to work and measure out all the components. Correction of deficiencies caused by the use of low-quality slats, may cost more.
Where on the foundation have a very high load required fixed formwork.
This type of formwork is beneficial for several reasons. Non-removable design reduces heat loss. It also allows you to save on materials. Using fixed formwork, you can not worry about the basement.
Styrofoam, laid next to the formwork, protects the walls. It prevents the ground from freezing, and this creates a safe environment for the walls.
Correctly made formwork
Usually in this case boards and supports Boards should be about 50 mm thick. The height of the formwork can reach 2 meters.
The installation of formwork for strip footing begins with guide boards.
If the construction is very high (more than 2 meters), then instead of boards it is better to use panel materials. To ensure proper strength, the width of the shield must be equal to the height.
There should be no slots in the formwork. Of course, they inevitably arise, but the master must close them up. Before pouring the mixture, small gaps are filled with tow, and large ones are masked with special rails.
The construction process
Formwork installation is a laborious task. The master must understand all the details of this process. Many beginners only after pouring the structure begin to wonder when to remove the formwork from the foundation. If the builder does not have time for such subtleties, then it is better to immediately turn to specialists.
What particular details you need to know before starting to work:
The fineness of the fill is still half the point. The master must clarify the composition of the mixture poured. To do this, find out what brand of concrete is used for the manufacture of structures, and whether to add other materials there.
Construction of formwork
Someone thinks that the construction of formwork is just nails and a pair of boards of the right size. This is partly true because the formwork is only one of the transitional stages from arranging the foundation to the walls of the building.
However, today there are quite complex systems where a pair of boards is indispensable. This is a formwork for walls. Thanks to such a system, modern architects manage to create truly grandiose structures.
Recently, film formwork has become popular. This view implies wrapping the structure with a film material. Thus, you can achieve the necessary savings in construction.
Decking is done over a couple of days. This is the time it takes for the concrete to dry. During this period, you should not disturb the structure in order not to break its symmetry. Boards with formwork should be removed carefully, after checking the condition of the walls. In some cases, it takes three days to dry the concrete.
We offer for viewing video materials about the construction of formwork.