JPH033766B2 - - Google Patents
Info
- Publication number
- JPH033766B2 JPH033766B2 JP12494883A JP12494883A JPH033766B2 JP H033766 B2 JPH033766 B2 JP H033766B2 JP 12494883 A JP12494883 A JP 12494883A JP 12494883 A JP12494883 A JP 12494883A JP H033766 B2 JPH033766 B2 JP H033766B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- concrete block
- concrete
- hydraulic cement
- cement composition
- 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
- 239000000463 material Substances 0.000 claims description 22
- 239000004744 fabric Substances 0.000 claims description 20
- 239000011396 hydraulic cement Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 15
- 238000009415 formwork Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 15
- 239000004745 nonwoven fabric Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001869 rapid Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Revetment (AREA)
Description
〔産業上の利用分野〕
本発明はコンクリートブロツクマツト（独立し
たコンクリートブロツクが透水性、可撓性布等の
シート状物の表面に一体化されたもの）の製造方
法に関し、特にコンクリートブロツクとシート状
物との連結力が高い製品の製造方法に関する。
このコンクリートブロツクを備えたシート状物
は地表の侵食の防止又は制御、特に水流による海
岸の堤防、河川及び排水路等の床、斜面又は堤防
等の侵食を防止し或いは鉄道、道路、造成地等に
おける法面を保護する覆工マツトとして利用され
る。
〔従来技術〕
従来、護岸または河川堤防等の法面の保護工事
は、例えば、保護すべき土面を整地してつき固め
た上でフイルター材を敷設しさらに栗石を積重ね
た後、その上面にセメントモルタルを目地に施し
ながらコンクリートブロツクを張り付けていた。
しかし、かかる方法は手数を要し、工期が長び
き、また、コンクリートブロツクの積み上げに熟
練した専門工を必要とする欠点があつた。従つ
て、これを簡易化するために、予じめ織布等のシ
ート材に多数のコンクリートブロツクを接着した
地表侵食防止用マツトを用意し、保護すべき法面
を整地した上にこのマツトを敷設する技術が開発
された（実公昭51−9135）。
コンクリートブロツクとナイロン等の可撓性布
との連結方法は、固化したコンクリートブロツ
クの連結面にエポキシ樹脂接着剤を塗り、これに
布を貼付け連結する方法（実公昭51−9135）、
固化前のコンクリートブロツクに布をのせ、布の
上から軽く圧着し、セメントミルクを含浸させ、
コンクリートブロツク、セメントミルクの固化と
同時に連結する方法（特開昭54−93018）、Ｔ
状、状の連結具を埋込んだコンクリートブロツ
クに布を当て、状の連結具を布に侵入させ、つ
いで該連結具の端を折曲げて固定する方法があ
る。
の方法については接着剤が高価であるととも
に、接着力も弱い。の方法はコンクリートブロ
ツクマツトが急流、波打際で護岸用に長期的に使
用する場合、コンクリートブロツクが侵食され、
布より脱落することがある。の方法において
は、連結具であるアンカーを備えたコンクリート
ブロツクを製造する困難さ、布へのアンカーの連
結作業のわずらわしさがある。また、連結面に凹
凸ができ、施工時に支障を起こす可能性がある。
〔発明の目的〕
本発明は、これらの諸問題を解決し、水硬性セ
メント組成物（コンクリート）の収縮固化作用、
付着力に着目し、より強い連結力と長期耐久性に
優れたコンクリートブロツクと布等との連結方法
を提供するものである。
〔発明の構成〕
本発明の構成を図面に基づいて説明すれば、第
１図に示す様な連結具（第１図に示した型状の連
結具をステープルと呼ぶ）または第２図に示す連
結具を、連結具打込み機に充填する。次に第３図
に示す様なコンクリートブロツク成形用型枠１に
水硬性セメント組成物２を流し込み、型枠に若干
振動を加え、その表面にポリプロピレン、ポリア
ミド、ポリエチレンテレフタレート等の耐水性樹
脂を素材とする不織布、フラツトヤーン織布等の
透水性・可撓性布３をのせ、ロール等で型枠１内
の水硬性セメント組成物に圧着させる。その上か
ら連結具を機械的に打込み、若干の振動を加え打
込まれた連結具の周囲の空隙を無くし、一般のコ
ンクリート養生条件で、例えば常温で２日間放置
して養生するか、常温で２時間前養生し、更に65
℃で６時間水蒸気養生をする。硬化反応時の水硬
性セメント組成物２（コンクリート）の収縮作用
により連結具はコンクリートブロツクに強固に固
定されるとともに、水硬性セメント組成物と透水
性、可撓性の布は面接着し、コンクリートブロツ
クと布は強固に一体化される。
第４図はコンクリートブロツクマツトを示し、
２はコンクリートブロツク、３は可撓性布であ
る。第５図に連結部分の詳細を示す。
ここで、水硬性セメント組成物としては、ポル
トランドセメント、フライアツシユセメント、急
硬性セメント、高炉スラグセメント等の水硬性セ
メントに、川砂、硅石、クレイ、CaCO3等の細
骨材、砂利、砕石等の粗骨材、水、必要により減
水剤、促進剤〔NO2CO3、K2CO3、K2SO4、Al2
（SO4）3〕、遅延剤〔酒石酸、クエン酸、グルコン
酸、それらの塩、CaSO4、庶糖〕を配合したもの
を用いることができる。
また連結具４としては型状が、ステープル型
（Ｕ字、ダイバー等）（第１図）、ビス型（丸釘、
スクリユウ等）（第２図）等、材質は、金属また
はプラスチツク、外観は、表面がリブ加工例えば
ネジ状加工されたもの、もしくは、加工されてい
ないものを用いることができる。またその寸法
は、連結力、コンクリートの耐久力、コンクリー
トブロツクの型状等により決める。
コンクリートへの接着物である耐水性、透水
性、可撓性を備えるシート状物３としては、前記
の不織布、織布等の他に帆布、金網等があり、そ
の材質は、前述のプラスチツクの他に金属、天然
繊維等を用いることができ、目的に応じて、型
状、材質を選定する。
連結具の打込み条件については、型枠へ水硬性
セメント組成物を流し込み、この水硬性セメント
が流動性を保つ間、好ましくは両流込み後、瞬間
的に打込むことが望ましい。特にシート状物が不
織布の様な布状のものについては、連結具をこの
シート状物を貫通させて連結する必要がある。ゆ
つくりと打込むと、コンクリートが固化前のた
め、布を押込む状態になり、型枠内のコンクリー
トを系外へ流出させてしまい、溝を造つてしま
う。また布等の貫通が困難になる場合がある。従
つて、空気圧力等で機械的に瞬間打込みが効率が
良い。その空気圧力は、ゲージ圧力で８Kg／cm2以
下、好ましくは0.5〜６Kg／cm2が望ましい。この
空気圧力の選定は、接着物の厚み、硬さを考慮し
接着物を突き破り、連結が不可能にならない圧力
とする。
逆に金網等のメツシユ構造物を接着物とする場
合は、圧力がほとんど不要となり、コンクリート
に連結具が簡単に、しかも、作業性の良い圧力を
選定すれば支障なく連結することができる。
次に、連結具の打込みは、促進剤、遅延剤、セ
メントの種類により異なるが水硬性セメント組成
物を型枠へ流し込み後、通常４時間以内、好まし
くは作業性、経済性及びその連結力から、２時間
以内が望ましい。これは、コンクリートブロツク
と連結具の連結の機構が、コンクリートの収縮作
用、付着力を応用しているためである。例えば、
４時間以上経過したコンクリートへ連結具を打込
むと、固化が若干進行しており、連結具の周囲に
空隙ができ、振動を加えても空隙を完全に埋める
ことが困難となる。従つて、付着力が充分発揮で
きず、連結具を簡単に引抜くことができる。
さらに、より連結力を改良するために、連結具
を打込み後、コンクリートの品質に悪影響を及ぼ
さない範囲で振動を加えると、連結具周囲の空隙
は、コンクリートが充填され、収縮作用時の付着
力はより増加する。この振動時間は、60秒以内、
望ましくは、30秒以内である。
次に本発明の実施例を示し説明する。
〔実施例 １〕
(1) 実験材料
型枠：
第３図に示すコンクリートブロツクマツト用型
枠：（１個のコンクリートブロツクの寸法は、
縦．195mm、横．145mm、高さ．100mm）
シート状物：
ポリプロピレン製不織布（縦．1900mm、横．
7000mm、肉厚．３mm）、但し、ポリエチレンテ
レフタレート糸で一定間隔ごとに縦方向に補強
を施してある。
連結具：
第１図に示す鋼製ステープル（幅10mm、足の長
さ22mm）、１ブロツクにつき４本打込（第５図）
水硬性セメント組成物：
ポルトランドセメント 100 重量部
砂利 400 〃
川砂 250 〃
減水剤 0.5 〃
水 58 〃
打込機：マツクス株式会社製マツクス釘打機
“エアネイラTA−35A″（空気圧式タツカー、商
品名）
(2) 打込み条件
ゲージ圧力で４Kg／cm2、及び７Kg／cm2、
(3) 打込時間
型枠へコンクリートを流し込み後、５分、30
分、60分、120分、
(4) 後処理
条件ａ 打込後そのまま養生
条件ｂ 打込後、加振し養生
以上(1)〜(4)の各条件で実施してコンクリートブ
ロツクを240個有するマツトを得た。（第４図）。
これを１週間養生し次の剥離試験を実施した。そ
の結果を第１表に示す。
〔ステープルの引抜力〕
装置：島津製作所製オートグラフ
引抜速度：200mm／分
方法：不織布をコンクリートブロツクより剥離
し、次いでステープルをオートグラフに
備えた把具でコンクリートブロツクより
引き抜く時の引き抜き抵抗力を連結強度
とする。
引抜数：上記連結強度の測定において、コンク
リートブロツクが破壊されずにステープ
ルのみが引き抜けた本数を同表に示す
（試料 20本）
[Industrial Field of Application] The present invention relates to a method for manufacturing a concrete block mat (in which independent concrete blocks are integrated on the surface of a sheet-like material such as a water-permeable, flexible cloth), and particularly relates to a method for manufacturing a concrete block and a sheet. The present invention relates to a method of manufacturing a product that has a high bonding force with a shaped object. This sheet-like material equipped with concrete blocks can be used to prevent or control erosion of the earth's surface, especially to prevent erosion of the floors, slopes, or embankments of coastal embankments, rivers, drainage channels, etc. caused by water flow, or to prevent or control the erosion of the earth's surface, etc. It is used as a pine lining to protect slopes. [Prior art] Conventionally, protection work for slopes such as sea walls or river embankments has been carried out by, for example, leveling and compacting the soil surface to be protected, laying filter material, and piling up chestnut stones, and then laying the ground on top of the soil. Concrete blocks were attached while applying cement mortar to the joints. However, this method is time-consuming and requires a long construction period, and also has the drawback of requiring skilled professionals to stack the concrete blocks. Therefore, in order to simplify this process, a surface erosion prevention mat is prepared in advance, in which many concrete blocks are glued to a sheet material such as woven fabric, and this mat is installed after leveling the slope to be protected. The technology for laying it was developed (Public Law Publication No. 51-9135). The method of connecting concrete blocks and flexible cloth such as nylon is to apply epoxy resin adhesive to the connecting surface of the solidified concrete blocks and attach the cloth to this (Utility Model Publication No. 51-9135).
Place a cloth on the concrete block before hardening, press lightly on top of the cloth, and impregnate it with cement milk.
Method of connecting concrete blocks and cement milk at the same time as it solidifies (Japanese Patent Application Laid-Open No. 1983-93018), T
There is a method in which a cloth is applied to a concrete block in which a shaped or shaped connector is embedded, the shaped connector is penetrated into the cloth, and then the ends of the connector are bent and fixed. In this method, the adhesive is expensive and the adhesive strength is weak. This method is used to prevent concrete blocks from being eroded when used for long periods as a seawall near rapids or waves.
It may fall off from the cloth. In this method, it is difficult to manufacture a concrete block equipped with an anchor as a connecting device, and the work of connecting the anchor to the cloth is troublesome. In addition, unevenness may occur on the connecting surface, which may cause problems during construction. [Object of the invention] The present invention solves these problems and improves the shrinkage solidification effect of hydraulic cement compositions (concrete),
Focusing on adhesion, the present invention provides a method for connecting concrete blocks and cloth, etc., with stronger connection force and excellent long-term durability. [Structure of the Invention] The structure of the present invention will be explained based on the drawings.The structure of the present invention will be explained based on the drawings. Load the connector into the connector driver. Next, the hydraulic cement composition 2 is poured into a formwork 1 for forming a concrete block as shown in Figure 3, the formwork is slightly vibrated, and a water-resistant resin material such as polypropylene, polyamide, polyethylene terephthalate, etc. is coated on the surface of the formwork. A water-permeable and flexible fabric 3 such as a non-woven fabric or a flat yarn woven fabric is placed on the fabric 3 and pressed onto the hydraulic cement composition in the formwork 1 using a roll or the like. Connectors are mechanically driven in from above, and the gaps around the driven connectors are eliminated by applying slight vibrations, and the concrete is allowed to cure under normal concrete curing conditions, for example, by leaving it for two days at room temperature, or by leaving it at room temperature for curing. Cured 2 hours before, then 65
Steam cure at ℃ for 6 hours. The connector is firmly fixed to the concrete block due to the contraction of the hydraulic cement composition 2 (concrete) during the hardening reaction, and the hydraulic cement composition and the water-permeable, flexible cloth are surface-adhered to the concrete. The block and cloth are strongly integrated. Figure 4 shows a concrete block mat.
2 is a concrete block, and 3 is a flexible cloth. FIG. 5 shows details of the connecting portion. Here, the hydraulic cement composition includes hydraulic cements such as portland cement, flyash cement, rapid hardening cement, and blast furnace slag cement, fine aggregates such as river sand, silica, clay, CaCO 3 , gravel, crushed stone, etc. coarse aggregate, water, water reducer, accelerator if necessary [NO 2 CO 3 , K 2 CO 3 , K 2 SO 4 , Al 2
(SO 4 ) 3 ] and a retarder [tartaric acid, citric acid, gluconic acid, salts thereof, CaSO 4 , sucrose] can be used. The shape of the connector 4 may be staple type (U-shaped, diver, etc.) (Fig. 1), screw type (round nail, etc.).
The material may be metal or plastic, and the surface may be ribbed, for example, threaded, or unprocessed. Its dimensions are determined by the connection strength, durability of the concrete, shape of the concrete block, etc. In addition to the above-mentioned non-woven fabrics, woven fabrics, etc., there are also canvas, wire mesh, etc. as the sheet-like material 3 having water resistance, water permeability, and flexibility, which is an adhesive to concrete, and the materials thereof include the above-mentioned plastics, etc. Other metals, natural fibers, etc. can also be used, and the shape and material are selected depending on the purpose. Regarding the conditions for driving the connector, it is desirable to pour the hydraulic cement composition into the formwork and to instantaneously implant it while the hydraulic cement maintains its fluidity, preferably after both pouring. In particular, when the sheet-like material is cloth-like, such as a non-woven fabric, it is necessary to connect the connecting tool by passing the sheet-like material through the sheet-like material. If you pour it slowly, the concrete has not yet solidified, so you will end up pushing the cloth in, causing the concrete in the formwork to flow out of the system, creating a groove. In addition, it may be difficult to penetrate cloth or the like. Therefore, mechanical instantaneous driving using air pressure or the like is efficient. The air pressure is preferably 8 kg/cm 2 or less, preferably 0.5 to 6 kg/cm 2 in gauge pressure. This air pressure is selected in consideration of the thickness and hardness of the bonded material, and is set to a pressure that does not pierce the bonded material and make connection impossible. On the other hand, when a mesh structure such as a wire mesh is used as an adhesive, almost no pressure is required, and it is possible to easily connect the connecting tool to the concrete without any problems by selecting a pressure that is easy to work with. Next, the connecting tool is usually inserted within 4 hours after pouring the hydraulic cement composition into the formwork, although it varies depending on the accelerator, retarder, and cement type, and preferably within 4 hours, considering workability, economical efficiency, and its connecting force. , preferably within 2 hours. This is because the mechanism for connecting the concrete block and the connector utilizes the shrinkage action and adhesion of concrete. for example,
When a connector is driven into concrete that has been used for more than 4 hours, solidification has progressed slightly, leaving a void around the connector, making it difficult to completely fill the void even if vibration is applied. Therefore, sufficient adhesive force cannot be exerted, and the connector can be easily pulled out. Furthermore, in order to further improve the connecting force, after placing the connecting device, vibration is applied within a range that does not adversely affect the quality of the concrete.The voids around the connecting device are filled with concrete, and the adhesion force during shrinkage is increased. increases. This vibration time is within 60 seconds,
Desirably, it is within 30 seconds. Next, examples of the present invention will be shown and explained. [Example 1] (1) Experimental material formwork: Formwork for concrete block mats shown in Figure 3: (The dimensions of one concrete block are:
vertical. 195mm, horizontal. 145mm, height. 100mm) Sheet material: Polypropylene nonwoven fabric (length: 1900mm, width.
7000mm, wall thickness. 3mm), however, it is reinforced in the longitudinal direction with polyethylene terephthalate thread at regular intervals. Connector: Steel staples shown in Figure 1 (width 10 mm, foot length 22 mm), 4 staples per block (Figure 5) Hydraulic cement composition: Portland cement 100 parts by weight Gravel 400 River sand 250 〃 Water reducing agent 0.5 〃 Water 58 〃 Driving machine: Maxx nailing machine “Air nailer TA-35A” manufactured by Maxx Co., Ltd. (pneumatic tatker, trade name) (2) Driving conditions Gauge pressure: 4Kg/cm 2 and 7Kg/ cm 2 , (3) Pouring time After pouring concrete into the formwork, 5 minutes, 30 minutes
minutes, 60 minutes, 120 minutes, (4) Post-processing conditions a: Curing as is after pouring Conditions: curing with shaking after pouring 240 concrete blocks were made under each of the above conditions (1) to (4). A pine tree with the following properties was obtained. (Figure 4).
This was cured for one week and then the next peel test was conducted. The results are shown in Table 1. [Staple pulling force] Equipment: Autograph manufactured by Shimadzu Corporation Drawing speed: 200 mm/min Method: Peel the nonwoven fabric from the concrete block, and then measure the pulling resistance when pulling the staple from the concrete block using the grip provided on the Autograph. Let it be the connection strength. Number of staples pulled out: The table shows the number of staples that were pulled out without the concrete block being destroyed in the above connection strength measurement (20 samples).
【表】
＊ ステープルが抜けた本数で他は破壊
なお、上記表１のNo.３−１の条件にて実施して
得たブロツクマツトについて、不織布のついたま
ま、コンクリートブロツクマツトを縦20cm、横20
cmに切断し、これを試料片として、オートグラフ
を用い、引張速度200mm／分で不織布とコンクリ
ートブロツクの引き剥し力を測定した。（実施例
２）その値の表示をKg／ブロツクとした。その結
果を第２表に示した。
比較として連結具を用いないブロツクマツトの
値を同表に示す。[Table] * The number of staples that have come out is the number of staples that are destroyed. For block mats obtained under the conditions of No. 3-1 in Table 1 above, concrete block mats were placed 20 cm long and horizontally with the nonwoven fabric still attached. 20
Using this as a sample piece, the peeling force between the nonwoven fabric and the concrete block was measured using an autograph at a pulling speed of 200 mm/min. (Example 2) The value was expressed in kg/block. The results are shown in Table 2. For comparison, the values of Brockmat without a connector are shown in the same table.
以上、詳述したごとく本発明の方法で得たコン
クリートブロツクマツトはコンクリートブロツク
の中に連結具が打込まれているために、シート状
物とコンクリートブロツクの連結強度は従来より
高く、長期耐久性に優れるという効果を奏する。
As detailed above, since the concrete block mat obtained by the method of the present invention has a connecting tool driven into the concrete block, the strength of the connection between the sheet material and the concrete block is higher than before, and it has long-term durability. It has the effect of being excellent.
第１図及び第２図は本発明で使用される連結具
の各例を示す斜視図、第３図は本発明方法の説明
用断面図、第４図は本発明方法により製造された
コンクリートブロツクマツトの上面側より見た斜
視図、第５図は同じく底面側より見た斜視図であ
る。
１…コンクリートブロツク成形用型枠、２…水
硬性セメント組成物（コンクリートブロツク）、
３…シート状物（布等）、４…連結具。
Figures 1 and 2 are perspective views showing examples of connectors used in the present invention, Figure 3 is a sectional view for explaining the method of the present invention, and Figure 4 is a concrete block manufactured by the method of the present invention. FIG. 5 is a perspective view of the mat viewed from the top side, and FIG. 5 is a perspective view of the mat viewed from the bottom side. 1... Formwork for forming concrete blocks, 2... Hydraulic cement composition (concrete block),
3... Sheet-like material (cloth, etc.), 4... Connector.
Claims (1)
表面に、多数のコンクリートブロツクが一体に固
着された法面保護、軟弱地盤補強、河川根固工等
に用いられるコンクリートブロツクを備えたシー
ト状物の製造方法において、コンクリートブロツ
ク成形用型枠内に水硬性セメント組成物を打設
し、該水硬性セメント組成物が硬化しない前に透
水性、可撓性のシート状物を前記型枠上に載せて
水硬性セメント組成物と接合させ、更にシート状
物の裏側より連結具を該シート状物をつらぬいて
型枠内の水硬性セメント組成物内にその先端が侵
入するように打込み、次いで、水硬性セメント組
成物を硬化させてシート状物にコンクリートブロ
ツクを固着させることを特徴とするコンクリート
ブロツクを備えたシート状物の製造方法。 ２ シート状物がポリプロピレン、ポリエチレン
テレフタレート、ポリアミド、ポリエチレンを素
材とする布であることを特徴とする特許請求の範
囲第１項記載のコンクリートブロツクを備えたシ
ート状物の製造方法。[Scope of Claims] 1. For slope protection, soft ground reinforcement, river foundation work, etc. where a large number of concrete blocks are integrally fixed on the surface of a sheet-like material such as a water-permeable, flexible cloth or wire mesh. In the method for producing a sheet-like article equipped with a concrete block, a hydraulic cement composition is poured into a mold for forming a concrete block, and the hydraulic cement composition is made water permeable and flexible before hardening. A sheet-like material is placed on the formwork and bonded to the hydraulic cement composition, and a connecting tool is inserted through the sheet-like material from the back side of the sheet-like material into the hydraulic cement composition in the formwork. 1. A method for producing a sheet-like article with a concrete block, characterized in that the concrete block is driven so that the tip thereof penetrates, and then a hydraulic cement composition is hardened to fix the concrete block to the sheet-like article. 2. The method for producing a sheet-like article equipped with a concrete block according to claim 1, wherein the sheet-like article is a cloth made of polypropylene, polyethylene terephthalate, polyamide, or polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12494883A JPS6016607A (en) | 1983-07-08 | 1983-07-08 | Manufacture of sheet with concrete block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12494883A JPS6016607A (en) | 1983-07-08 | 1983-07-08 | Manufacture of sheet with concrete block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6016607A JPS6016607A (en) | 1985-01-28 |
| JPH033766B2 true JPH033766B2 (en) | 1991-01-21 |
Family
ID=14898163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12494883A Granted JPS6016607A (en) | 1983-07-08 | 1983-07-08 | Manufacture of sheet with concrete block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6016607A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7775743B1 (en) * | 2006-06-14 | 2010-08-17 | Kelley Dennis G | Erosion control device and method of use |
-
1983
- 1983-07-08 JP JP12494883A patent/JPS6016607A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6016607A (en) | 1985-01-28 |
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