Pouring concrete into formwork: methods. timing and rules

Starting the construction of a building or structure, should be given enough time to create such an important structural element as the foundation. Without a foundation, it is simply impossible to build a building, so it is very important to choose the type of this element correctly. At the same time, it is impossible to carelessly treat such a stage of work on the foundation as the construction of formwork, thanks to which concrete can be cast into the formwork to create a monolith.

Arrangement of formwork

Formwork is a special construction consisting of blocks that need to be fixed in a certain position in order to build a strong frame so that concrete is laid in the formwork to create the foundation. Removing it with your own hands or stripping occurs after the cast solution reaches the required strength.

In order for this process to be performed correctly, and you end up with a reliable, solid and durable construction, you need to know not only how to pour concrete into the formwork, but also at what strength of concrete you can remove the formwork so as not to harm it.

The purpose of the construction of the framework, and the time for its removal, directly depends on the purpose for which the injected product is constructed.

It may be intended;

• To fill the foundation of the structure;
• To create floors between floors;
• For the device of the walls of the building;
• To implement the methods of monolithic construction;
• For arrangement of mine floors.

For the construction of the formwork builders use various materials, the most popular among which are:

• Lumber or wood;
• Metal plates;
• Styrofoam.

Fill method

The process of pouring a structure with concrete can be divided into four main stages:

1. Mixing solution;
2. Move the solution into the mold;
3. Smoothing solution;
4. Compaction design.

You can mix the solution either manually or using a concrete mixer or you can order a ready-made prefabricated solution.

Depending on how the solution is kneaded, the method of moving it to the prepared form is also taken:

• Imported concrete moves directly from the vehicle along a chute made of wood or metal. In this process, the main thing is to ensure the access of vehicles to the building site;
• If you knead concrete by hand, it is carried by buckets;
• The mobility of modern concrete mixers will allow it to be installed nearby and pour the mortar directly from it.

Smooth mass is usually with a shovel or building rules. Compaction will remove air from the concrete mass. Compaction can be performed mechanically using construction vibrators or manually, by piercing the monolith with sharp rebar rods.

Also compaction can be made by tapping the walls with a sledgehammer. But the application of such a method must be carried out with the utmost care so as not to damage the shields and other structural elements and prevent the solution from flowing.

Terms of removal of removable products

There is no definite answer to the question of when it is possible to remove formwork from concrete, because this period depends on many factors. So, for example, the foundation can perform several tasks, in addition to the standard, installation and retention of walls and floors of buildings. All this will have an impact on the requirements that will be made not only to the foundation itself, but also to the formwork for its construction.

The manufacture of this design should be made of durable and reliable materials capable of withstanding the pressure of concrete on the formwork. These materials must meet the standards and requirements for construction sites.

Structures of this type are usually made of metal frames or plywood in several layers. The choice of durable material due to the fact that the pressure of concrete on the walls of the formwork in the process of pouring and drying the solution can be quite large, and the design should eliminate damage, deformation and fracture of the monolith.

Note! The final monolithic construction should be as durable and reliable as possible, and if necessary, machining should be applied such methods as cutting reinforced concrete with diamond circles and diamond drilling of holes in concrete.

Let's find out how much concrete is drying in the formwork. According to the standards approved in the relevant documentation and tested in practice, the period of concrete reaching its maximum strength level is 28 days.

In this case, the monolith should be moistened twice a day. But this does not mean at all that all this time the solution should be kept in a removable form. Experts advise the removal of a temporary structure 10 days after pouring concrete.

How to remove formwork from the design

When to remove the formwork with concrete, each developer decides on their own. The main thing is that by this time the monolith has managed to gain a sufficient level of strength. In order to dismantle the structure, we will have to remember all the stages of installation, and perform all the same work, only in reverse order.

Despite the apparent simplicity, this process has its own pitfalls, because the work must be done so as not to damage parts of the created product.

The removal instructions provide for the implementation of the following recommendations:

• Even in the process of construction should consider options for removing each element;
• Removal should be done only when the developer is confident in the strength of the structure.

Council Premature removal of the frame elements can lead to cracking of the monolith under the influence of the load and the whole construction process will have to be started anew, and the cost of this process is very high.

The basic rules for stripping

The stripping process is carried out in compliance with the following rules:

• Removal of the tower, tours and support columns is left at the end of the work because these elements hold the structure;
• The first step is to remove the tensioning wire by unscrewing the bolts fastening it.. This action will make it possible to separate the racks and shields;
• Dismantling should be carried out starting from the upper parts, smoothly moving to the lower parts;
• First, remove the elements from the corners and edges of the structure;
• Removing grasping ribs;
• Separate shields from monoliths;
• Now remove the supporting elements of the structure.

Note! The process of removing the elements of the product can sometimes be delayed for weeks.

The removed parts can be reused to fill the foundations, for which they should be stored in appropriate conditions.

Finally

Arrangement of formwork - an important process for creating high-quality and reliable building that will serve you for more than a dozen years. But in this process, the main value is not only the process of collecting the structure and pouring it with concrete solution.

Of considerable importance is the process of removing the elements of the time frame, and especially the time after which the foundation will be dismantled. And to learn even more about how concrete is cast in the formwork, you will allow the video in this article.