JPS601456B2 - Waste concrete construction method - Google Patents
Waste concrete construction methodInfo
- Publication number
- JPS601456B2 JPS601456B2 JP17457080A JP17457080A JPS601456B2 JP S601456 B2 JPS601456 B2 JP S601456B2 JP 17457080 A JP17457080 A JP 17457080A JP 17457080 A JP17457080 A JP 17457080A JP S601456 B2 JPS601456 B2 JP S601456B2
- Authority
- JP
- Japan
- Prior art keywords
- net
- construction method
- waste concrete
- concrete construction
- nonwoven fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Description
【発明の詳細な説明】
本発明は構造物を構築する先作業として地盤の整備のた
めの捨コン地業工法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waste concrete construction method for preparing the ground as a preliminary work to construct a structure.
従来より建築工事場所では地面をならし、砂利を敷設し
、その上に捨コンクリートを打設して水平なコンクリー
ト面として、それを基準として高さの設定、墨出しなど
の測定作業を行らている。Traditionally, at construction sites, the ground is leveled, gravel is laid, and concrete is poured on top of it to create a horizontal concrete surface, and measurements such as height setting and marking are performed using this as a reference. ing.
しかし砂利を敷設することは、その搬送や敷設作業が極
めて煩雑であり、排出性、透水性が悪いため冬期の道路
（地下水）の凍土現象が生じ、時には打設した捨コンク
リートにクラックが起ることがあった。また現時は、砂
利自体の入手も次第に困難になり、そのためのコスト高
の問題も発生している。そこで本発明は作業が簡単で透
水性に優れた捨コン地業工法を提供することを目的とす
るものである。However, the transportation and laying of gravel is extremely complicated, and its drainage and water permeability are poor, resulting in freezing of roads (groundwater) in winter, and cracks sometimes occur in the poured concrete. Something happened. Furthermore, at present, it is becoming increasingly difficult to obtain gravel itself, leading to the problem of high costs. Therefore, an object of the present invention is to provide a method for constructing waste concrete that is easy to operate and has excellent water permeability.
そして本発明の特徴は、地面ならし後、合成樹脂製のネ
ットとこのネット上面に長繊維不織布とを敷設し、その
後捨コンクリートを打設するところにある。A feature of the present invention is that after leveling the ground, a synthetic resin net and a long fiber nonwoven fabric are laid on top of the net, and then concrete is poured.
図面に基いて本発明の実施例について説明する。Embodiments of the present invention will be described based on the drawings.
第１図に示すように建築現場を所定の深さ掘削して必要
によっては周囲の土止め工事を行う。As shown in Figure 1, the construction site is excavated to a predetermined depth and, if necessary, earthwork is carried out around the area.
ところでこの掘削孔の底面を予め地ならしをし、そこに
ネットーと不織布２とを敷設し、その上に捨コンクＩＪ
−ト３を打設するのである。このネツトーと不織布２と
は、予め長尺状に切断し、相互を接着剤などで接着し、
巻込んであるのを敷設すると、敷設作業が極めて能率的
となる。ところでネット１の形状は次の通りである。By the way, the bottom of this excavation hole was leveled in advance, netto and nonwoven fabric 2 were laid there, and waste concrete IJ was placed on top of it.
- concrete 3 is to be poured. This netto and the nonwoven fabric 2 are cut into long pieces in advance and bonded together with an adhesive or the like.
If the wire is rolled up, the installation work becomes extremely efficient. By the way, the shape of net 1 is as follows.
第２，３図に示すように合成樹脂を素材とし、格子状に
連続している一体成形体で編成されていないもので、こ
のネットを構成する経緯の各線状ｌａ，ｌｂは、第３図
示のように立体構造となっている。本発明は上記の通り
格子状に構成されたネットの他、織物状・亀甲状に構成
されたマットも使用できる。ネットーは一体形成である
ため目くずれ、ほつれの心配がなく、士中埋設時の一面
せん断抵抗（面保持性）がよく、さらにネットは立体構
成であるため、このネットと並行方向の通気、通水性が
優れている。殊に高密度ポリエチレン製（中低圧法ポリ
エチレン）を素材とするネットを使用すると、耐蝕性、
耐錆性、耐薬品性、機械的強度が大きく、硫化温度が低
いため耐寒性に優れ、可操性がよく、比重が約０・９５
であるので軽く、運転及び作業が楽で、ナイフなどで簡
単に加工でき、さらにカーボンブラックを含有している
ので太陽の光にも強い。ネットーを構成する経緯の各線
状ｌａ，ｌｂの太さを１・５から４（肋）とし、目合（
線条間の間隔）を５から２５（柳）とすると、ネットの
強度、排水性、経済性などの点で最も望ましい。次に不
織布２について説明する。As shown in Figures 2 and 3, it is made of synthetic resin and is not knitted as an integral molded body that is continuous in a lattice shape. It has a three-dimensional structure like this. In the present invention, in addition to the grid-like net as described above, mats having a woven or hexagonal pattern can also be used. Because the net is integrally formed, there is no need to worry about it coming off or fraying, and it has good one-sided shear resistance (surface retention) when buried in the middle.Furthermore, since the net has a three-dimensional structure, ventilation and communication in parallel to the net are possible. Excellent water quality. In particular, when using a net made of high-density polyethylene (medium-low pressure polyethylene), corrosion resistance and
It has high rust resistance, chemical resistance, and mechanical strength, and has low sulfurization temperature, so it has excellent cold resistance, good maneuverability, and a specific gravity of approximately 0.95.
Because of this, it is light, easy to drive and work with, and can be easily processed with a knife, and since it contains carbon black, it is resistant to sunlight. The thickness of each line la and lb of the neto is set from 1.5 to 4 (rib), and the mesh (
It is most desirable in terms of net strength, drainage performance, economical efficiency, etc. to set the distance between the striations from 5 to 25 (willow). Next, the nonwoven fabric 2 will be explained.
これは例えばポリエステルの長繊維の不織布であって、
ポリエステル繊維を連続的に積層して製造したものであ
る。This is, for example, a nonwoven fabric made of long fibers of polyester,
It is manufactured by continuously laminating polyester fibers.
この不織布として望ましい条件は、引張強力、摩擦強度
、耐日光性、耐水性、透水性に優れていることである。
そしてこの不織布２は表面に集中してかかる荷重を分散
して、地盤の負坦を軽減するもので土砂のズレを防止し
、地盤の安定に効果的である。この不織布２の厚さは０
．２５，０．５８，０．７２，２．０，２．７，４．０
（側）のものである。そこで厚みが０．５８柳で目付１
５０多′あの不織布の物性を実験した結果、次の特性を
有することが判つた。Desirable conditions for this nonwoven fabric are that it has excellent tensile strength, frictional strength, sunlight resistance, water resistance, and water permeability.
This non-woven fabric 2 disperses the load concentrated on the surface, reduces the load on the ground, prevents displacement of earth and sand, and is effective in stabilizing the ground. The thickness of this nonwoven fabric 2 is 0
．． 25, 0.58, 0.72, 2.0, 2.7, 4.0
It belongs to (side). Therefore, the thickness is 0.58 willow and the basis weight is 1.
As a result of experiments on the physical properties of the 50% nonwoven fabric, it was found that it had the following properties.
引張強度（ｋ９／５肌）は縦が７０、藤が４５であり、
破断伸度（％）は縦、穣共に３ふ引裂強度（ｋ９）は縦
が４．５、横が５．５、被断強度（ｋ９′の）は１７．
０、透水係数（ｃの′ｓｅｃ）は３．１×１０‐２であ
り、殊に水平方向の透水性が優れており、さらに土庄や
上からの押圧荷重がかかっても優れた透水性を有するこ
とが判明した。因みに引張強度においては、ポリプロピ
レンの不織布の２倍である。The tensile strength (k9/5 skin) is 70 for vertical and 45 for rattan.
The elongation at break (%) is 3 for both length and width, tear strength (k9) is 4.5 for length, 5.5 for width, and breaking strength (k9') is 17.
0, the coefficient of permeability (c'sec) is 3.1 x 10-2, and it has excellent water permeability, especially in the horizontal direction. It turned out that it has. Incidentally, its tensile strength is twice that of polypropylene nonwoven fabric.
本発明は上記構成であるため、地盤上にネットと不織布
を敷設した後、捨コンクリートを打設すればよいので、
作業は極めて簡単で、従来のように砂利の場合は歩き難
くく地盤を荒してし、たがその問題もなくなり、ネット
と不織布との結合によって雨水、凝水、融雨水などの集
、排水処理能力に優れ、さらに冬期の道路（地下水）の
凍士防止にも極めて効果的である。Since the present invention has the above configuration, it is only necessary to place the waste concrete after laying the net and nonwoven fabric on the ground.
The work is extremely easy, and the traditional method of using gravel makes it difficult to walk on and roughens the ground, but this problem has been eliminated, and by combining the net and non-woven fabric, it is possible to collect rainwater, condensed water, melted rainwater, etc., and treat wastewater. It has excellent ability and is also extremely effective in preventing freezing of roads (groundwater) in winter.
図面は本発明の実施例を示すもので、第１図は工事現場
の断面図、「第２図は要部の一部省略平面図、第３図は
第２図ｍ−皿線拡大断面図である。
１・・・ネット、２・・・不織布、３・・・捨コンクリ
−ト。
第１図
精２図
精３図The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view of a construction site, FIG. 1... Net, 2... Non-woven fabric, 3... Waste concrete. Figure 1 Figure 2 Figure 3
Claims (1)
面に長繊維不織布とを敷設し、その後捨コンクリートを
打設することを特徴とする捨コン地業工法。 ２ 特許請求の範囲第１項において、ネツトは高密度ポ
リエチレン製であることを特徴とする捨コン地業工法。 ３ 特許請求の範囲第１項において、不織布はポリエス
テル系樹脂であることを特徴とする捨コン地業工法。４
特許請求の範囲第１項において、ネツトは一体成形体
で立体構成であることを特徴とする捨コン地業工法。 ５ 特許請求の範囲第１項において、ネツトと不織布と
は長尺状に切断して相互を接着して巻込まれているのを
敷設することを特徴とする捨コン地業工法。[Claims] 1. A waste concrete construction method characterized in that after leveling the ground, a synthetic resin net and a long fiber nonwoven fabric are laid on the top surface of the net, and then concrete is poured. 2. The waste concrete construction method according to claim 1, wherein the net is made of high-density polyethylene. 3. The waste concrete construction method according to claim 1, wherein the nonwoven fabric is a polyester resin. 4
Claim 1: The waste concrete construction method according to claim 1, wherein the net is an integrally molded body having a three-dimensional structure. 5. A waste concrete construction method as set forth in claim 1, characterized in that the net and the nonwoven fabric are cut into long pieces, glued together, and rolled together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17457080A JPS601456B2 (en) | 1980-12-12 | 1980-12-12 | Waste concrete construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17457080A JPS601456B2 (en) | 1980-12-12 | 1980-12-12 | Waste concrete construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57100228A JPS57100228A (en) | 1982-06-22 |
| JPS601456B2 true JPS601456B2 (en) | 1985-01-14 |
Family
ID=15980863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17457080A Expired JPS601456B2 (en) | 1980-12-12 | 1980-12-12 | Waste concrete construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601456B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811141A (en) * | 1981-07-15 | 1983-01-21 | 三井東圧化学株式会社 | Composite waterproof sheet |
| JPH0557032U (en) * | 1991-12-27 | 1993-07-30 | 三菱油化産資株式会社 | Embankment reinforcement |
-
1980
- 1980-12-12 JP JP17457080A patent/JPS601456B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57100228A (en) | 1982-06-22 |
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