JP2005143326A - Greening block - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening block needing no application of soil and manure, and having good drainage so as to hardly cause root rotten. <P>SOLUTION: The greening block has the following structure: a lower layer concrete 3 mixed with carbonized wood powder and having water permeability is laminated on the under surface of a porous upper layer concrete 2 mixed with carbonated wood fine pieces 2b as an aggregate; and drainage grooves 3a each with a predetermined depth are formed at the under surface of the lower layer concrete 3 so as to drain passed water. In such a structure, the carbonized wood fine pieces 2b make appropriate spaces 2d so as to facilitate rooting of plants and save soil, nutrients contained in the carbonized wood fine pieces 2b are directly supplied to the roots so as to require no specific application of any manure and reduce costs. The lower layer concrete 3 prevents rooting and inhibits moisture retention because excessive water is surely drained through the drainage grooves 3a at the under surface of the lower layer concrete so as to effectively prevent root rot. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a greening block in which concrete is made to contain a carbide so that plants can be easily grown.

  Conventionally, a greening block in which carbide is contained in concrete is disclosed in Patent Document 1. This technology penetrates vertically into the concave part or the upper part containing the soil for planting the surface of the charcoal-containing concrete body obtained by kneading and hardening water with 10 parts by weight or more of wood carbide based on 100 parts by weight of cement. It is characterized by a structure in which a plurality of holes are provided.

By the way, since the said greening block uses soil, fertilization is required and it costs, and there existed a problem in which soil flows out by rainwater etc. In addition, since the lower surface of the block is smooth and there is no root-preventing layer, the roots extending to the lower part of the block are liable to be rotted by moisture staying under the block, and there is a problem of inhibiting plant growth.
JP 2002-191235 A

  The problem to be solved by the present invention is to solve these conventional problems, and to provide a greening block that does not require soil and fertilization, has good drainage properties, and does not easily cause root rot.

The configuration of the present invention that solves this problem is as follows.
1) Laminate a lower concrete layer that has water permeability and cannot enter plant roots on the lower surface of a porous upper concrete layer that has voids that allow the roots of plants mixed with wood carbide as aggregates to pass through the lower concrete surface. A greening block in which a drainage groove of a predetermined depth is formed for draining the drained water 2) The greening block described in 1) above, wherein the wood carbide of the upper concrete is a slender strip 3) Planting a plant on the upper surface of the upper concrete The greening block according to 1) or 2) provided with a plurality of recesses for containing soil 4) The greening block according to 3), wherein the recess is a pot hole 5) The concrete material of the upper concrete and the lower concrete is alumina cement・ Silica fume and zirconia are mixed in either Portland cement, foamed concrete, or a combination of these. The greening block according to any one of 1) to 4), which is configured as described above 6) The greening rooftop where a large number of the greening blocks according to any one of 1) to 5) are arranged on the rooftop of the building 7) The above 1) to 5) ) Greening slope 8 in which a large number of greening blocks according to any one of the above are arranged on an inclined surface. The greening road surface has a large number of greening blocks according to any of the above 1) to 5) arranged on the road surface.

  According to the present invention, moderate voids are formed by the aggregate woody carbide, the roots of the plant are easy to settle and soil can be omitted, and the nutrients contained in the woody carbide are directly supplied to the roots, and fertilization is also performed. Costs can be reduced without any special need. In addition, the lower concrete layer prevents roots and effectively prevents excess water that has passed through water or from the gaps between adjacent blocks to be drained reliably in the drainage groove on the lower surface, thereby preventing moisture retention. To do. Furthermore, temperature rise can be suppressed by appropriate water retention, and the heat island phenomenon can be reduced by the heat insulating effect on the installation surface.

  Examples of the material constituting the concrete of the greening block of the present invention include foamed concrete, alumina cement, and Portland cement, and 1 to 30 parts by weight of silica fume or zirconia may be blended depending on the required strength. Examples of the carbide include bamboo charcoal, charcoal, activated carbon, and the like. In the upper concrete, those having a particle size in the range of 1 to 10 mm are mixed, and in the lower concrete, those pulverized are mixed as necessary. Embodiments of the present invention will be specifically described below with reference to the drawings.

  1-3 is an example of the greening block installed on the rooftop of a building. FIG. 1 is a partially cutaway perspective view of the upper surface side of the greening block of the embodiment, FIG. 2 is a partially cutaway perspective view of the lower surface side of the greening block of the embodiment, and FIG. It is explanatory drawing which shows.

  In the figure, 1 is a greening block, 2 is an upper concrete, 2a is a recess, 2b is a wood carbonized strip, 2c is a cement, 2d is a gap, 3 is a lower concrete, 3a is a drain, F is a floor panel, G is Soil, P is a plant, Pa is a root, and W is water.

  As shown in FIGS. 1 and 2, the greening block 1 of the present example was injected into a mold by adding a suitable amount of water to 16.96% by weight of Portland cement and 54.57% by weight of sand. Further, 1082% by weight of a wood carbonized strip 2b having a size of 1 to 10 mm, 15% by weight of alumina cement, 0.58% by weight of silica fume, 0.21% by weight of zirconia, 1.75% by weight of sand A two-layer block having a porous structure and a dense structure in which a mortar kneaded with an appropriate amount of water is poured into a mold to form an upper layer portion and simultaneously cured to have a recess 2a on the upper surface and a drainage groove 3a on the lower surface. 45 cm × 45 cm × 10 cm.

  In this greening block 1, as shown in the enlarged view of FIG. 1, in the upper concrete layer 2, voids 2d having an appropriate size are formed continuously and three-dimensionally by the carbonized carbon pieces 2b. Root Pa enters and settles. The lower concrete 3 is formed with continuous and fine voids and allows water to pass therethrough, but the root Pa of the plant P cannot enter and forms a water-permeable root prevention layer.

  As shown in FIG. 3, a plurality of greening blocks 1 are arranged adjacent to the floor panel F on the roof of the building, and various plants P are placed in the recesses 2a of the greening blocks with the soil G attached. To do. Thereafter, when the plant P is irrigated, the water W is absorbed by the soil G and the wood carbonized strips 2b of the upper concrete 2 and the surplus water is passed through the gap 2d to the lower concrete 3 and further into the lower concrete 3. Then, the water is drained from the drain groove 3a.

  The plant P grows by photosynthesis, and the root Pa grows and enters the void 2d of the upper concrete layer 2 and grows. Moisture is supplied from the soil G or wood carbonized strip 2b that has absorbed water, and nutrients (Ca, K, Mg, Na, etc.) in the wood carbonized strip 2b are exuded and supplied. Excess water W is surely drained by the drainage grooves 3a, and prevents root rot without damp retention of moisture. Moreover, temperature rise can be suppressed by moderate water retention, and the rooftop environment can be improved.

  FIG. 4 shows another example of the greening block of the embodiment. Drawing 4 is an explanatory view showing the state where it planted in the greening block of other examples of an example. The greening block 1 shown in FIG. 4 has a flat shape without forming the recess 2a as in the embodiment. The lawn is formed by planting turf on the entire upper surface of the upper concrete layer 2. In other respects, the reference numeral, the configuration, and the operational effects are the same as in the embodiment.

  FIG. 5 shows another example of the greening block of the embodiment. FIG. 5 is explanatory drawing which shows the state planted in the greening block of the other example of an Example. In the figure, 2e is a pot hole. The greening block 1 shown in FIG. 5 forms a pot hole 2e instead of the recess 2a of the embodiment. Although the plant P to which the soil G is attached is directly planted in the pot hole 2e, it can be accommodated with the pot attached. In other respects, the reference numeral, the configuration, and the operational effects are the same as in the embodiment.

  FIG. 6 shows another example of the greening block of the embodiment. FIG. 6 is a partially cutaway perspective view of the lower surface side of the greening block of another example of the embodiment. In the figure, 3b is a recess. The greening block 1 shown in FIG. 6 forms a recess 3b having the same depth as the drainage groove 3a on the installation surface surrounded by the drainage groove 3a, thereby reducing the area of the installation surface and further suppressing moisture retention. I can do it. In other respects, the reference numeral, the configuration, and the operational effects are the same as in the embodiment.

  The greening block of the present invention can be used for rooftops, gardens, sidewalks, slopes, wall surfaces, roadside belts, garages, private roads, parks, and the like.

It is a partially notched perspective view of the upper surface side of the greening block of an Example. It is a partially notched perspective view of the lower surface side of the greening block of an Example. It is explanatory drawing which shows the state planted in the greening block of an Example. It is explanatory drawing which shows the state planted in the greening block of the other example of an Example. It is explanatory drawing which shows the state planted in the greening block of the other example of an Example. It is a partially notched perspective view of the lower side of the greening block of the other example of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Greening block 2 Upper-layer concrete 2a Recess 2b Wood carbonization piece 2c Cement 2d Void 2e Pot hole 3 Underlying concrete 3a Drain 3b Recess F Floor panel G Soil P Plant Pa Root W Water

Claims (8)

  Laminated the lower concrete layer that has water permeability and the plant roots cannot penetrate into the lower surface of the porous upper concrete layer that has voids that allow the roots of plants mixed with wood carbide as aggregates to pass through the lower concrete surface. A greening block with drainage grooves of a predetermined depth that drains water.   The tree planting block according to claim 1, wherein the wood carbide of the upper concrete layer is an elongated strip.   The greening block according to claim 1 or 2, wherein a plurality of recesses for accommodating soil for planting a plant are provided on the upper surface of the upper concrete layer.   The greening block according to claim 3, wherein the recess is a pot hole.   The greening according to any one of claims 1 to 4, wherein the concrete material of the upper layer concrete and the lower layer concrete is constituted by mixing silica fume and zirconia in any one of alumina cement, Portland cement, foamed concrete, or a combination thereof. block.   The greening rooftop which arranged many the greening blocks in any one of Claims 1-5 on the rooftop of a building.   A greening slope having a large number of the greening blocks according to claim 1 arranged on an inclined surface.   The greening road surface which has arranged many greening blocks in any one of Claims 1-5 on the road surface.

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