The formwork is a temporary design intended for fixing the forms of products made of concrete mixes. In the process of its work, the formwork is experiencing heavy loads. Hence the requirements for it are unambiguous: rigidity, strength and stability. How to establish a formwork, you will learn from this article.
1
The oldest and simple formwork is her design of wood. For the manufacture of facilities, boards are suitable with any sizes. They are connected to the shields that are installed on the places, fixing with the help of progress, wire, bracket, etc.
2
Before mounting the formwork, you need to measure the lengths of the sides of the shape to be filling with a concrete mixture, to choose the boards on them and knock off the suitable height shields from them.
3
The thinner in the shield board, the smaller the distance between its rigidity ribs. They are performed from a wooden bar that bonding the entire wooden element in the transverse direction. If you have a pair of downed shields, you can start mounting formwork.
4
When pouring a concrete ribbon foundation, the formwork needs to be installed on two sides of the future form. A locking struts are installed between the shields, and to fix the fixation of the formwork is tightened with wire or transverse jumpers, which are nourished to the upper end of the shields. The connection of the elements of the whole design is performed according to their edges using mounting nails 70-100 mm long.
5
As an additional strengthening of the formwork along its each side, wooden support stakes can be scored. When pouring a wide or high foundation, the slopes are additionally installed, which are removed by one end to the ground, and the other is in the outer side of the formwork.
6
After pouring the concrete, the formwork can be removed. To do this, first remove its stops, then transverse screeds, and then fought off the concrete shields. For the last operation, you can apply them to climbing in the right places. Then the formwork needs to be cleaned from the remnants of concrete and dried by posting on a flat surface. Her shields in the future can be used as flooring or for disassembling them on the board.
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