JPH0469695B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing concrete blocks, particularly concrete blocks whose height can be kept constant during masonry.

[Prior Art] When carrying out construction by stacking concrete blocks, joint mortar is placed on the top surface of the blocks and the blocks are stacked one on top of the other.

In this case, in conventional molded blocks, the height of the products is uneven, so when stacking the blocks, the size of the filler joints is adjusted so that the surface of the top layer is flat. However, this required a skilled builder.

Since it is not possible to form blocks with the currently used concrete block forming machines due to height accuracy, a method has also been proposed in which the heights are made uniform by cutting after forming the blocks.

However, cutting a block after molding not only roughens the cut surface and deteriorates the appearance, but also requires expensive cutting equipment to cut the block after hardening, which increases the manufacturing cost of the block. However, it was a method that was practically impossible to implement.

[Problems to be Solved by the Invention] The purpose of the present invention is to provide a method for manufacturing concrete blocks that does not require cutting of the blocks after molding and does not require a high level of skill during construction and stacking. There is.

[Means for solving the problem] The structure for solving the above problem is to form protrusions with mortar at several places on the joint surface of a block that has a stagnation part at the end connected to the joint surface, and A method for manufacturing concrete blocks for external joint construction, in which the surface is leveled so that the height from the lower joint surface to the upper surface of the protrusion is constant using a sliding tool set at a predetermined position before the mortar solidifies. It is.

[Example] To explain in detail with reference to the drawings, as shown in FIGS. 2 to 4, an upper joint of a concrete block 1 formed to have stagnation portions 3 at the upper ends of the front and back surfaces. Protrusions 2a are formed using mortar at four locations on the surface 5a, and these protrusions 2a
The surface is smoothed using a sliding tool before it solidifies, and the height from the lower joint surface 5b to the upper surface 2b of the protrusion shown in FIG. 1 is formed to be constant.

The concrete block 1 manufactured in this way is
As shown in FIG. 5 or 6, when stacked with the protrusions 2a facing down, the upper surfaces of each stage, that is, the lower joint surfaces 5b shown in FIGS. 2 to 4, are always on the same plane. . Therefore, even a person who is not a highly skilled person can perform construction with a good finish on the top surface of the stacked blocks after the stacking is completed.

Finally, the stagnation portion 3 is filled with joint mortar 4 to complete the construction.

[Effects of the Invention] As explained above, by employing the blocks of the present invention, even those who are not highly skilled can perform construction with a good finish on the stacked surface of the blocks after stacking is completed, and the construction speed is faster than that of the conventional method. It is about 3 times the block product of , which is highly efficient.

In addition, in the manufacturing process of the block of the present invention, there is no need to modify the dimensions of the concrete block itself after molding, and the purpose can be achieved by simply modifying the top of the protrusion formed with mortar before solidification using a sliding tool. It is also easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is a side view of a concrete block manufactured by the method of the present invention after protrusions have been cut, Fig. 2 is an elevational view showing the manufacturing process of the concrete block by the method of the present invention, and Fig. 3 is the same side view. 4 is a top view, and FIG. 5 is a side view of concrete blocks manufactured by the method of the present invention stacked together.
Figure 6 is a side view of the joint mortar applied to the stagnation area. 1... Concrete block, 2a... Protrusion,
2b...Protrusion top surface, 3...Stagnation portion, 4...Joint mortar, 5a...Upper joint surface, 5b...Lower joint surface.

Claims (1)

[Claims] 1. Protrusions are formed with mortar at several places on the joint surface of a block that has a stagnation part at the end connected to the joint surface, and before the mortar solidifies, the lower part is removed using a sliding tool set at a predetermined position. A method for manufacturing a concrete block for external joint construction, characterized by leveling the surface so that the height from the joint surface to the top surface of the protrusion is constant.