Vegetation block and outer layer body for vegetation block

Abstract

A vegetation block comprising a block body (10) molded of concrete, and an outer layer body (20) being placed on the outer surface of the block body (10) when it is molded and formed of a mat-form fibrous aggregate F capable of growing a plant, wherein the outer layer body (20) is formed by inserting and pressing a large number of needles into the laminated fibrous aggregate F from above to allow longitudinal fibers to exist abundantly in the fibrous aggregate F of the outer layer body (20) so that fibers can penetrate into the concrete easily. Furthermore, aggregate having uniform grain size is employed in the concrete and porosity of the concrete is set at 10-25% so that the fibers of the outer layer body (20) can penetrate easily, and the outer layer body (20) is bonded surely without being stripped off easily and a plant growing on the fibrous aggregate is rooted surely.

Description

technical field [0001] The invention relates to a plant growth block and an outer layer body for the plant growth block, which are arranged on the legal face, revetment and the like on the side of the road and can grow plants. Background technique [0002] Conventionally, as such a plant growth building block, for example, the type proposed by the present applicant and described in JP-A-2002-220836 is known. [0003] picture Figure 11 As shown, the plant growth block Ba includes a block main body 1, an outer layer body 4 and a bracket 5. The block main body 1 is formed by concrete and has a bottom surface 2 arranged on a setting surface. The outer layer body 4 is arranged on On the outer surface 3 of the block main body 1 except for the bottom surface 2, a fiber assembly F in which plants can grow is formed in a sheet shape, and the support 5 is arranged on the inner surface of the outer layer body 4 for reinforcement. shape. Reference numeral 6 denotes a metal connector,...

AI Technical Summary

Problems solved by technology

[0005] However, in this conventional plant growth block Ba, the outer layer body 4 is provided on the block main body 1 through the grid-shaped bracket 5, but the fibers of the bracket 5 or the fiber aggregate F are not necessarily compatible with the building block. The block main body 1 is entangled to achieve good bonding, and the problem that the fiber aggregate F is easy to peel off

In addition, even when the fiber assembly F of the outer layer body 4 is directly joined to the block main body 1 without providing the bracket 5, the fibers of the fiber assembly F are not necessarily entangled with the block main body 1 to achieve a good joint. , also in this case, the fiber assembly F is easy to peel off

Therefore, in the fiber aggregate F, rooting is not sufficient even when the plant is growing.

In addition, when it is used for revetment of rivers, the growth environment of plants cannot be ensured sufficiently due to the fact that the rivers are easy to flow due to flooding or heavy rain.

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