The formwork for the foundation with his own hands

Pouring the foundation is carried out in a pre-requisite infrastructure formwork.This structure must be installed in compliance with a number of established rules and norms.Check out the features of the existing kinds of formwork, the procedure for calculating them, instructions on the construction of the most common designs and start to work.

Of course, before the erection of the formwork necessary to determine the type of foundation you will build.Be sure to check the following materials on our website:

How to make a strip foundation with his own hands - first of all, we offer you to get acquainted with the technology, step by step construction of strip foundation.In which, including the methodology tells about the erection of the formwork made of wood.Also

strip foundation suggest reading material for the construction of pier foundation with his own hands, becauseit is quite popular form of the foundation in Russia.

Materials for formwork manufacturing

foundation mold can be made from different materials.

Metal

Universal and the most expensive version of the formwork.steel sheets 2.1 mm in thickness used for the construction of the assembly.

Shuttering of metal is perfect for arranging tape and solid foundation structures.The fittings can be welded directly to the casing sheets that will contribute to increase the stiffness of the foundation.

main advantage of metal is its simplicity and ease of handling - sheets can bend without any problems under the desired shape of the concrete base.

But the main drawback of the metal casing is its very high cost when compared with other existing options.

Reinforced

relatively expensive kind of formwork.

Such formwork settling of concrete slabs.Depending on the thickness of plates used, by pouring the foundation will be more to reduce the consumption of concrete, which will save on construction of the base without impairing the strength and other important design features.

Among the shortcomings should be noted a lot of weight plates, that requires the use of special equipment to install them.

Moreover, if the formwork made of prefabricated panels and the size of one element is missing, it is necessary to install additional spacers, which is also not the best way affect the total cost of construction.

Styrofoam

Very high quality and practical option.The formwork is assembled from individual prefabricated polystyrene foam blocks.formwork elements are extremely simple to install.They can handle a desired shape without any problems.

main flaws - difficulties at the stage of selecting the design of certain elements (typically a curvature and corners) and relatively high cost.

scrap materials

To assemble the formwork can use all sorts of handy tools: slate, steel sheet and other suitable materials from which to make the design the desired shape without cracks in the walls.

main and largely only notable advantage of this design is shuttering its cheapness.

Among the many shortcomings deserve special attention the following points:

• complexity of the assembly;
• risk of leakage drenched mixture;
• lower load carrying capacities;
• need for additional rasklinok and supports.

Such formwork is only suitable for small buildings.

Wood

most popular option.The most frequently used sheet plywood and boards.

The benefits need to include availability and relatively low cost material.Wooden elements are easy to install - all activities are carried out without the use of difficult and complex instruments in circulation.

main drawback - the need to use in some situations, additional elements to enhance the design.For this need often results in a variety of sizes of the materials used.

wooden formwork are the most popular and one of the most easy-to-assemble options, so it is recommended for beginners to give preference to such structures.

sure to make payment before the beginning of construction formwork.

Calculation

construction formwork Order of calculation will be reviewed on a standard example of the wooden formwork for the foundation.Traditionally, boards have a ready-made factory 600 cm length, thickness of 2.5 cm and a width of about 10-15 cm.

To calculate, divide the perimeter of the future concrete base on the length of use of the board.The height of the basement, divide the width of one board.Multiply values.So you define the required number of boards for formwork.On average, 1 out of 40 m3 up to 65 elements.The particular amount used depends on the width of the boards.

For the estimated value of construction formwork beams add to the purchase cost to fix the main elements and struts to strengthen the system.Depending on the particular situation additional costs can amount to half of the value of the boards (plywood).

formwork parameter Also note the additional costs for rebar, fasteners and missing tools, which will need to buy.If desired, consider using a removable rental formwork.Take the design of the temporary use is possible at the next site.In most cases, formwork rent out a few cheaper than its self-arrangement.

Fixed timbering Fixed

designs are simple and high speed assembly.After pouring mortar formwork remains in the basement.

The most common non-removable formwork assembled from readily available materials.You can also use a DSP and fiberboard for the job.In the case of the arrangement of the columnar base, shuttering function can take on a hollow tube made of metal or asbestos.In this situation, formwork contribute to further increase the strength of the concrete base.Thus the use of additional spacers and the supporting elements in most cases can be abandoned.

1. Dig a pit (pit, trench) in accordance with the dimensions and design features of the future foundation.These points should be initially included in the project.
2. formwork between ground and leave a small gap (1-3 cm, depending on the material).This period will facilitate the installation of construction.After rasklinki shuttering gap will need to be covered with soil.
3. Fill the bottom of the prepared excavation layers of sand and gravel.Each layer is thoroughly compacted backfill.
4. lay on the pillow reinforcing mesh if necessary.Thanks to the reinforcement of the finished foundation strength will be significantly increased.
5. After these events can proceed directly to the arrangement of elements of formwork construction.All work is reduced to adjusting elements.fastening methods are selected individually, taking into account the characteristics of the material used.For example, in case of the first arrangement of the wooden formwork are driven into the ground supporting beams, and then nailed thereto boards (boards, plywood).In general, be guided by the situation.
   

   Installation of utilities in the formwork

At the end you will only pour concrete, wait for about a month, until he gets strength, and after that you can move on to conduct further planned construction activities.

Removable formwork made of wooden planks

first step

Clean the building site of debris and anything that can prevent the implementation of future activities.

second step

Mark the area and to the prepared project requirements.

third step

Beat in the corners (and in case the need arises and on the perimeter with a pitch of 600-800 mm) pieces of wood for fixing the basic elements of design.Bars drive in such a way that during the construction of the formwork, they remained with its outer side.

fourth step

Begin to fixwooden boards for bars driven into the ground.To mount, use nails or screws.So you build the frame.

fifth step

To provide additional rigidity of the system pull the wall formwork construction by means of pins.This need arises typically when filling large volume of concrete.

During shuttering arrangement, make sure that its walls were installed only vertically.

It is important that there were no major gaps in the structure.Gaps are sealed with suitable materials at hand.In this case, a large slit width is considered to be more than 4-5 mm - this period would be sufficient for the leakage of the concrete solution.Additionally

small to prevent leakage of the solution can be attached to the inner surface of the formwork walls polyethylene film.

detachable formwork is recommended to dismantle the set only after the foundation of the necessary strength.On average, it takes 3-5 weeks.The gaps left after dismantling of formwork, usually backfilled with soil.In some situations, their pour concrete or cement mortar.

Follow the receipt of the recommendation, and finished formwork to cope with the tasks assigned to it without any problems.

Successful work!

Video - The formwork for the foundation with his hands