JPS58195630A - Concrete placement method - Google Patents

Abstract

PURPOSE:To eliminate the needs for conventional formwork and reinforcement as well as construct strong foundation by a method in which concrete is placed into a frame made up of expandible metals in such a way as to integrately combine the expandible metals and concrete. CONSTITUTION:Expandible metals 1 are erected on an U-shaped metal tool 3 fixed to a foundation 2, spacing metals 4 and 5 are inserted into a rising portion (a), and then concrete is concurrently placed to a base (b) and a rising section 7. After the concrete is hardened, finish morter 8 is placed on the upside.

Description

[Detailed description of the invention] The present invention relates to a concrete pouring method.

Conventionally, to cast concrete foundations and structures, a formwork and its reinforcing material were assembled, concrete was poured in between, and after the concrete had hardened, the formwork and its reinforcing material were removed. In the case of a convex shape like this, it took a double effort to build the rising formwork and pour the concrete after the concrete at the bottom had hardened.

The present invention modifies the conventional construction method and uses expanded metal instead of the formwork and its reinforcing material, making it possible to pour concrete at once even in complex shapes without having to remove it unlike the formwork. This saves time and allows the expanded metal to remain as it is to reinforce the concrete.

That is, even if the concrete structure has a complicated shape, the present invention shortens the work process by setting expanded metal instead of formwork and quickly placing the concrete. This is a concrete pouring method characterized by the fact that the metal is bonded to the solidified concrete without being removed, thereby serving as a reinforcing effect.

Next, an embodiment of the concrete foundation casting method according to the present invention will be described with reference to the drawings.

In the embodiment shown in Figure 7x, it is installed upright on a U carved metal fitting 3 fixed to an expanded metal 1f basic base 2.

The protruding rising portion α of the base concrete is formed by pouring the concrete 6 of the base 6 and the rising concrete 7 at the same time after the spacing maintenance fittings 4 and 5 have been charged. In addition, as shown in Fig. 2, the expanded metal l is different from a normal net because it is provided with an inclined part 1α having an angle of about 45° as shown in the figure, so that the binding effect between the concrete and the finishing mortar 8 is ensured. In addition, leakage of concrete can be prevented during standing foundation concrete pouring, making the construction method of the present invention even more effective. That is, concrete IJ is poured into the frame formed by the expanded metal 1, and after this is assimilated, the expanded metal 1 is bonded to the concrete 6 and mortar 8 and cannot be removed (because it exerts a reinforcing effect). be.

According to the present invention, foundation concreting can be performed extremely efficiently, conventional formwork and its reinforcing materials are no longer required, expanded metal is reinforced after pouring, and a sturdy foundation can be installed. In addition, the adhesion between concrete and mortar is strong, and the construction period is significantly shortened.

'Ni::22nini6゜771J =,. , 6,7°-4
Fig. 1 is a sectional view, and Fig. 2 is a partial sectional view.

1~exband metal, 6,7~concrete (8) Figure i Figure 2

Claims (1)

[Claims] In place of the formwork at the location where concrete is to be poured, expand metal with a shape in which the extra F sections are lined up at the required interval is placed, and the expanded metal is bonded to the hardened concrete without being removed. A concrete pouring method characterized by: