JP2008503672A - Crack control of cementitious materials - Google Patents

Crack control of cementitious materials Download PDF

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JP2008503672A
JP2008503672A JP2007517991A JP2007517991A JP2008503672A JP 2008503672 A JP2008503672 A JP 2008503672A JP 2007517991 A JP2007517991 A JP 2007517991A JP 2007517991 A JP2007517991 A JP 2007517991A JP 2008503672 A JP2008503672 A JP 2008503672A
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cementitious material
cracking
control means
crack
wall
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クック，クリストファー，ジョン，フォザーギル
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クック，クリストファー，ジョン，フォザーギル
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/08—Packing of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
    • E01C11/106—Joints with only prefabricated packing; Packings therefor

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Finishing Walls (AREA)

Abstract

図１を参照して、該発明の実施形態はセメント質材料、例えばコンクリート本体での亀裂化を制御し、伸張底部２、底部から伸び互いに近づく方向に曲がった伸張側壁部分３と４及び側壁部分に一個の開口部か複数の開口部を有する手段１を含む。亀裂化制御手段は使用時に底部を下に位置して、セメント質物質内で形成する亀裂が亀裂化制御手段位置かその近辺で起こるように、亀裂し易いセメント質物質をその周りと少なくとも一部で中まで注ぐ。Referring to FIG. 1, the embodiment of the invention controls cracking in a cementitious material, such as a concrete body, and stretches bottom 2, stretched side wall portions 3 and 4 extending from the bottom and bent toward each other, and the side wall portion. Means 1 having a single opening or a plurality of openings. The cracking control means is located at the bottom in use, and at least part of the cracking cementitious material around and at least partially so that cracks forming in the cementitious material occur at or near the cracking control means position. Pour until inside.

Description

本発明はセメント質材料、例えばコンクリートでの亀裂制御手段に関する。 The present invention relates to crack control means in cementitious materials such as concrete.

コンクリート施工状態でコンクリート本体は固まると亀裂するのが普通である。このような亀裂は大量のコンクリートでの作業では通常避けられないが、構造的見地からは亀裂位置を制御することが好ましい。従って本発明の少なくとも一実施形態の目的は、コンクリートでの亀裂制御に少なくともある方法を使うか、公衆に有益な選択を少なくとも提供することである。
方向性関連の用語、例えば“上向き”などをここでもし用いた場合、別に云わない限り方向性に付いての標準的使用事項に関するものと考える必要があることが分からねばならない。
用語“構成している”や“構成する”などその派生語は“成るや含む”を意味する、即ち限定を意図しないと解釈する必要があることが分からねばならない。 In concrete construction, the concrete body usually cracks when it hardens. Such cracks are usually unavoidable when working with large amounts of concrete, but it is preferable to control the crack location from a structural point of view. Accordingly, it is an object of at least one embodiment of the present invention to use at least some method for crack control in concrete or at least provide a beneficial choice to the public.
It should be understood that if directional terms, such as “upward”, are used here, unless otherwise stated, they should be considered as related to the standard use of direction.
It should be understood that the terms “comprise” and “comprise” and its derivatives mean “includes and includes”, ie, should not be construed as limiting.

該発明の一様態によると、セメント質物質本体での亀裂化制御手段、伸張底部、その底部から伸び互いに近づくように曲がった伸張側壁部分及び側壁部分の一つの開口部や複数の開口部を有する亀裂化制御手段、使用時に底部を下に位置して亀裂し易いセメント質物質をその周りと少なくとも一部がその中を通り、次いでセメント質物質内に形成した亀裂が亀裂化制御手段位置かその近辺で起こるように注ぐことができるように形成した亀裂化制御手段を提供する。
好ましくはセメント質物質はコンクリートで構成される。
好ましくは横断面図で見ると側壁部分はその側壁部分間の底部の一部と共に三角形を形成する。
好ましくは三角形頂点から上向きに伸びる伸張部がある。
好ましくはセメント質物質本体での亀裂化制御手段は多数の該亀裂化制御手段の組み合わせ用の継ぎ手と組み合わす。
該発明の更なる様態によるとセメント質物質本体での亀裂化制御手段、伸張底部、その底部と壁部分が実質的に逆“T”型である底部から上向きに伸びる伸張壁部分及び壁部分に一つの開口部又は複数の開口部を有する手段、使用時に底部を下に位置し亀裂し易いセメント質物質をその周りと少なくとも一部がその中を通り、次いでセメント質物質内に形成した亀裂が亀裂化制御手段位置かその近くで起こるように注ぐことができるようにした形成亀裂化制御手段を提供する。
好ましくはセメント質物質はコンクリートで構成される。
好ましくは一つの開口部又は複数の開口部は、場合によっては壁又は壁部分の約５０％かそれ以上を占める。
該発明の更なる様態によると、セメント質物質本体での亀裂化制御手段、二個の実質的にV型部分、V型部分の一つの頂点内側から広がり他のV型部分頂点に伸びる伸張壁部分と壁部分に一つの開口部又は複数の開口部を有する手段、使用時に底部が下に位置して亀裂し易いセメント質材料をその周りと少なくとも一部がその中を通り、次いでセメント質物質内に形成した亀裂が亀裂制御手段位置かその近辺で起こるように注ぐことができるように形成した亀裂化制御手段を提供する。
好ましくはこの二つのV型部分は実質的に同一方向に向いた頂点を有する。
任意にV型部分の頂点は実質的に反対方向に向く。
任意にV型部の一つが他V型部より実質的に大きい。
好ましくは一つの開口部又は複数の開口部は壁部分表面積の少なくとも実質的に５０％を占める。
該発明の更なる様態によると、セメント質物質本体での亀裂化制御手段、底部と壁部分が実質的に直角を形成するように伸張底部と底部から伸びた伸張壁部分と壁部分の少なくとも実質的に５０％を占める一つの開口部か複数の開口部を有する手段、使用時に底部が下に位置し亀裂し易いセメント質物質をその周りと少なくとも一部がその中を通り、次いでセメント質物質内に形成した亀裂が亀裂化制御手段位置かその近辺で起こるように注ぐことができるように形成した亀裂化制御手段を提供する。
該発明の更なる様態によると、以下の手順を含む亀裂し易いセメント質物質での亀裂制御法を提供する。
i）前記様態のいずれか一つに記載のような亀裂化制御手段を得、亀裂がセメント質物質内で形成されるのが望ましい場所かそれに隣接の位置に配置し、
ii）場合によってはセメント質物質が壁か壁部分周りと少なくとも一部がその中に広がるように大量のセメント質物質を配置し、且つ
iii）亀裂化制御手段位置かその近辺でセメント質物質内に亀裂が形成できる。
好ましくはセメント質物質はコンクリートで構成される。
該発明の更なる様態によると、以下の手順を含む亀裂し易いセメント質物質内での亀裂化制御手段を提供する。
i）亀裂制御要素が底部、底部から伸びた一つの壁か複数の壁及び一つの壁か複数の壁に一つの開口部又は複数の開口部を有する亀裂制御要素を得、亀裂がセメント質物質内に形成するのが望ましい位置に亀裂化制御要素を配置し、
ii）セメント質物質が一つの壁か複数の壁周りと少なくとも一部がその中に広がるように大量のセメント質物質を配置し、且つ
iii）亀裂制御要素位置かその近辺でセメント質物質内で亀裂が形成できる。
好ましくは一つの開口部又は複数の開口部は一つの壁か複数の壁表面積の少なくとも５０％を占める。 According to one aspect of the present invention, the cementitious material main body has a cracking control means, an extended bottom portion, an extended side wall portion extending from the bottom portion and bent so as to approach each other, and one or more openings in the side wall portion. Cracking control means, when used, the bottom part is located below, and the cementitious material which is prone to cracking passes around and at least partly through it, and then the crack formed in the cementitious material is the cracking control means position or its There is provided a cracking control means formed so as to be able to be poured in the vicinity.
Preferably the cementitious material is made of concrete.
Preferably, when viewed in cross-sectional view, the sidewall portions form a triangle with a portion of the bottom between the sidewall portions.
There is preferably an extension extending upward from the apex of the triangle.
Preferably, the cracking control means in the cementitious material body is combined with a number of joints for the combination of cracking control means.
According to a further aspect of the invention, the cracking control means in the cementitious material body, the extension bottom, the extension wall portion and the wall portion extending upward from the bottom, the bottom and wall portions being substantially inverted "T" shapes. Means having one opening or a plurality of openings, a crack located in the cementitious material around and at least partly passing through a cementitious material which is located at the bottom and is prone to cracking when used; A forming cracking control means is provided that can be poured to occur at or near the cracking control means location.
Preferably the cementitious material is made of concrete.
Preferably, the opening or openings optionally occupy about 50% or more of the wall or wall portion.
According to a further aspect of the invention, the cracking control means in the cementitious material body, two substantially V-shaped parts, an extending wall extending from the inside of one vertex of the V-shaped part and extending to the other vertex of the V-shaped part Means having one opening or a plurality of openings in the part and the wall part, the cementitious material around and at least partly passing through the cementitious material which is easy to crack when the bottom is located underneath, and then the cementitious substance There is provided a cracking control means formed so that a crack formed therein can be poured so as to occur at or near the position of the crack control means.
Preferably, the two V-shaped portions have vertices oriented in substantially the same direction.
Optionally, the vertices of the V-shaped portion are substantially in the opposite direction.
Optionally one of the V-shaped parts is substantially larger than the other V-shaped part.
Preferably, the opening or openings occupy at least substantially 50% of the wall portion surface area.
According to a further aspect of the invention, the cracking control means in the cementitious material body, at least a substantial portion of the stretched wall portion and wall portion extending from the stretched bottom portion and the bottom portion so that the bottom portion and the wall portion form a substantially right angle. Means having an opening or a plurality of openings which occupy 50%, a cementitious material with a bottom at the bottom and prone to cracking in use, at least partially through it, and then a cementitious material There is provided a cracking control means formed such that a crack formed therein can be poured so as to occur at or near the cracking control means position.
According to a further aspect of the invention, there is provided a crack control method for a crackable cementitious material comprising the following procedure.
i) obtaining cracking control means as described in any one of the above aspects, placing it at or adjacent to where it is desirable that the crack be formed in the cementitious material;
ii) optionally placing a large amount of cementitious material such that the cementitious material extends around and at least partially around the wall or wall portion; and
iii) Cracks can be formed in the cementitious material at or near the cracking control means.
Preferably the cementitious material is made of concrete.
According to a further aspect of the present invention, there is provided a means for controlling cracking in a cementitious material that is susceptible to cracking, comprising the following procedure.
i) a crack control element having a bottom, a wall or walls extending from the bottom, and a crack control element having one opening or a plurality of openings in one or more walls, wherein the crack is a cementitious material Place the cracking control element in a position where it is desirable to form in,
ii) placing a large amount of cementitious material so that the cementitious material extends around and at least partially around a wall or walls, and
iii) Cracks can form in the cementitious material at or near the crack control element location.
Preferably, the opening or openings occupy at least 50% of the wall or walls.

図１、図２及び図３を参照して、コンクリート亀裂制御要素１は底部から互いに上方に曲がって交わる二個の伸張側壁部３と４付き底部２を有する伸張部分である。従って該制御要素１は通常横断面図では中空で三角形である。側壁部３と４は図２と３に示すように連続した間隔付き伸張開口部５を有する。見て分かるように底部２は壁部３と４のいずれかの側からわずかに伸び、壁部頂点は垂直伸張部６を有する。
制御要素１は使用時には底部２を下にして配置し、大量のコンクリートをその周りに注ぐ。コンクリートは少なくとも制御要素１を実質的に覆い、開口部５経由でその中を通る。鉄筋（図示していない）を必要であれば開口部５を通すことができる。コンクリートが固まると、制御要素１位置又はその近辺で亀裂し易い。この制御した亀裂化は制御要素のいずれかの側のコンクリート本体が、制御要素及び／又は制御要素を通るコンクリートの一部より実質的により大きな質量を有するという事実により促進される。
図４と５に底部８と上向き伸張壁部９をもつ代替えコンクリート亀裂制御要素７を示す。底部と壁部は実質的に逆T型である。図示のごとく制御要素７は連続した間隔付き伸張開口部１０を有する。代替え亀裂制御要素７を用いて前述と大半同じ方法で、即ち底部８を下に配置してコンクリートをその周りと中に注いで、コンクリート亀裂を制御する。鉄筋を開口部１０に通しても良い。コンクリート内に形成の亀裂によりコンクリート内に一本か複数線の脆弱部を生ずると考えると、亀裂は制御要素７の位置かその近辺に起こりやすい。
好ましくは制御要素１と７のそれぞれはその底部２か８に小さい開口部を有し、必要があれば下にある表面に固定できる。好ましくはこれら底部２と８は、必要な場合に制御要素１と７がより容易に水平にできるよう実質的に平らである。
最初に記載の制御要素１の場合、壁部３と４及び底部２の下部分で形成した三角形により強度と安定性、例えば壁部の好ましくない側方運動に抵抗する手段が得られる。
制御要素１と７は任意の適材、例えば一般に鋼鉄、プラスチックや樹脂性物質で形成できる。
使用時の制御要素１と７は、ある場合には他のそのような制御要素１と７にそれぞれ連結するのが好ましい。これを得るために、制御要素を必要に応じて適切な直線継ぎ手、角継ぎ手や“T”型継ぎ手と共に使用しても良い。図６に最初に記載の制御要素１二つを連結するのに使用できる直線コネクター１１を示す。より具体的には二個の亀裂制御要素１はコネクター１１の各反対端でスリーブとしてコネクター１１にはめ込む。コネクター１１は亀裂制御要素１内部とかみ合う程度に制限した縁１２を各端に有する。
図７と８、図９と１０、図１１と１２及び図１３と１４に、図１、２と３に関した記載のように亀裂制御要素１と共に使用できる種々の他コネクターを示す。それぞれの場合で亀裂制御要素１はスリーブとしてコネクターとかみ合う。好ましくはこれらコネクターのそれぞれはコンクリート又は類似物がその内部及び／又は経由して入れる一個の開口部か複数の開口部を有する。
任意に亀裂制御要素１と７及び上記の種々のコネクターは２．０乃至３．５mm（又は好ましくは２．５乃至３．０mm）ゲージ鋼鉄かプラスチックから形成する。使用材料の規格は所望の伸縮継ぎ手サイズに合致するように選んでも良い。
好ましくは亀裂制御要素の開口部５と１０は側壁部の約５０％かそれ以上、より好ましくは側壁部の５２％を占める。
該発明のある実施形態では少なくともコンクリート本体か類似体に制御した伸縮継ぎ手を作ることができることが分かる。その継ぎ手はコンクリート表面下の亀裂制御要素の位置付けに対応しても良い
図１５、１６、１７及び１８に該発明の代替え実施形態に従う亀裂制御要素１３、１４、１５及び１６を示す。各図は端面図と透視図両者での各亀裂制御要素１３、１４、１５又は１６を示す。亀裂制御要素１３乃至１６のそれぞれは種々な応用、例えばコンクリート壁板角での亀裂を制御するか、或いは床レベルでの亀裂を制御するように利用する。コンクリートは噴霧法や任意の他の適切手段のより制御要素１３乃至１６に注ぐことができる。
図１５、１６と１８に示すように、制御要素１３、１４及び１６のそれぞれは二個のV型端部分と中間連結壁部分を有する。壁部分はコンクリート又はある他のセメント質材料がその中を通れる開口部を有する。制御要素１３と１４の場合には、二個のV型端部頂点は同方向に向き、場合によっては頂点の内側部分か外側部分のいずれかで、その頂点の壁部分と連結する。制御要素１６の場合には、二個のV型部分の頂点は互いに遠ざかるように向き、この頂点内側部分でその壁部分により相互に連結する。図１７に示すように、制御要素１５は直角形状であり、角度の一辺は底部にあり、他はその中に開口部を有する壁部分にある。好ましくは制御要素１３乃至１６の全てで、その開口部は各事例で壁部分表面積の少なくとも実質的に５０％を占める。
実施例により該発明の好ましい形のいくつかを記載したが、修正と改良が添付の請求項範囲を逸脱することなしにできることを分かる必要がある。 With reference to FIGS. 1, 2 and 3, the concrete crack control element 1 is an extension portion having two extension side wall portions 3 and a bottom portion 2 with four bent and bent upward from each other. The control element 1 is therefore usually hollow and triangular in cross section. The side walls 3 and 4 have a continuous spaced extension opening 5 as shown in FIGS. As can be seen, the bottom 2 extends slightly from either side of the walls 3 and 4 and the apex of the wall has a vertical extension 6.
In use, the control element 1 is placed with the bottom 2 down and a large amount of concrete is poured around it. The concrete substantially covers at least the control element 1 and passes through it through the opening 5. If necessary, a rebar (not shown) can be passed through the opening 5. Once the concrete has hardened, it tends to crack at or near the control element 1 position. This controlled cracking is facilitated by the fact that the concrete body on either side of the control element has a substantially greater mass than the control element and / or the portion of the concrete that passes through the control element.
4 and 5 show an alternative concrete crack control element 7 having a bottom 8 and an upwardly extending wall 9. The bottom and the wall are substantially inverted T-shaped. As shown, the control element 7 has a continuous spaced extension opening 10. An alternative crack control element 7 is used to control concrete cracks in much the same way as described above, i.e. with the bottom 8 placed underneath and pouring concrete around and into it. A reinforcing bar may be passed through the opening 10. Considering that a crack formed in the concrete causes one or more lines of weakness in the concrete, the crack is likely to occur at or near the control element 7.
Preferably each of control elements 1 and 7 has a small opening in its bottom 2 or 8 and can be secured to the underlying surface if necessary. Preferably these bottoms 2 and 8 are substantially flat so that the control elements 1 and 7 can be more easily leveled if necessary.
In the case of the control element 1 described at the outset, the triangle formed by the walls 3 and 4 and the lower part of the bottom 2 provides a means to resist strength and stability, for example undesired lateral movement of the wall.
The control elements 1 and 7 can be made of any suitable material, for example, generally steel, plastic or resinous material.
In use, the control elements 1 and 7 are preferably connected to other such control elements 1 and 7, respectively. To achieve this, the control elements may be used with appropriate straight joints, square joints and “T” type joints as required. FIG. 6 shows a straight connector 11 which can be used to connect two control elements described first. More specifically, the two crack control elements 1 are fitted into the connector 11 as sleeves at opposite ends of the connector 11. The connector 11 has edges 12 at each end that are limited to the extent that they engage the interior of the crack control element 1.
7 and 8, FIGS. 9 and 10, FIGS. 11 and 12, and FIGS. 13 and 14 show various other connectors that can be used with the crack control element 1 as described with respect to FIGS. In each case, the crack control element 1 engages with the connector as a sleeve. Preferably each of these connectors has an opening or openings through which concrete or the like enters and / or through.
Optionally, the crack control elements 1 and 7 and the various connectors described above are formed from 2.0 to 3.5 mm (or preferably 2.5 to 3.0 mm) gauge steel or plastic. The standard of the material used may be selected to match the desired expansion joint size.
Preferably the openings 5 and 10 of the crack control element occupy about 50% or more of the side wall, more preferably 52% of the side wall.
It can be seen that in certain embodiments of the invention, a controlled expansion joint can be made to at least a concrete body or analog. The joints may correspond to the positioning of the crack control element below the concrete surface, and FIGS. 15, 16, 17 and 18 show the crack control elements 13, 14, 15 and 16 according to an alternative embodiment of the invention. Each figure shows each crack control element 13, 14, 15 or 16 in both an end view and a perspective view. Each of the crack control elements 13-16 can be used to control cracks at various applications, such as concrete wall board corners, or cracks at the floor level. Concrete can be poured into the control elements 13 to 16 by spraying or any other suitable means.
As shown in FIGS. 15, 16 and 18, each of the control elements 13, 14 and 16 has two V-shaped end portions and an intermediate connecting wall portion. The wall portion has openings through which concrete or some other cementitious material can pass. In the case of control elements 13 and 14, the two V-shaped end vertices are oriented in the same direction and, in some cases, are connected to the apex wall portion at either the inner or outer portion of the apex. In the case of the control element 16, the vertices of the two V-shaped portions are directed away from each other and are connected to each other by the wall portion at the inner portion of the vertices. As shown in FIG. 17, the control element 15 has a right-angle shape, one side of the angle is at the bottom and the other is in the wall portion having an opening therein. Preferably, in all of the control elements 13 to 16, the opening occupies at least substantially 50% of the wall surface area in each case.
While some of the preferred forms of the invention have been described by way of example, it should be understood that modifications and improvements can be made without departing from the scope of the appended claims.

該発明の好ましい形のいくつかを実施例と付随図面について説明する。
図１はコンクリート亀裂制御要素の横断面図である。 図２は図１の亀裂制御要素の側面図である。 図３は図１と２の亀裂制御要素の平面図である。 図４は代替えコンクリート亀裂制御要素の透視図である。 図５は図４の亀裂制御要素の端面図である。 図６は直線コネクターの横断面図である。 図７と８はそれぞれ四方コネクターの側面図と平面図である。 図９と１０はそれぞれ三方コネクターの側面図と平面図である。 図１１と１２はそれぞれ角度付き二方コネクターの側面図と平面図である。 図１３と１４はそれぞれ三方コネクターの側面図と平面図である。 図１５乃至１８は代替えコンクリート亀裂制御要素の透視図と端面図である。 Some preferred forms of the invention will now be described with reference to the examples and the accompanying drawings.
FIG. 1 is a cross-sectional view of a concrete crack control element. FIG. 2 is a side view of the crack control element of FIG. FIG. 3 is a plan view of the crack control element of FIGS. FIG. 4 is a perspective view of an alternative concrete crack control element. FIG. 5 is an end view of the crack control element of FIG. FIG. 6 is a cross-sectional view of a straight connector. 7 and 8 are a side view and a plan view of the four-way connector, respectively. 9 and 10 are a side view and a plan view of the three-way connector, respectively. 11 and 12 are a side view and a plan view of an angled two-way connector, respectively. 13 and 14 are a side view and a plan view of the three-way connector, respectively. FIGS. 15-18 are perspective and end views of alternative concrete crack control elements.

Claims (20)

セメント質物質本体での亀裂化制御手段、伸張底部、底部から伸び互いに近づくように曲がった伸張側壁部分及び側壁部分に一個の開口部か複数の開口部を有する亀裂化制御手段、使用時にその底部を下に位置して、亀裂し易いセメント質物質をその周りと少なくともその一部で中に注ぎ、次いでセメント質物質内で形成する亀裂が亀裂化制御手段位置かその近辺で起こるように形成する亀裂化制御手段。 Cracking control means in the cementitious material body, extended bottom part, extended side wall part extending from the bottom part and bent so as to approach each other, and cracking control means having one or more openings in the side wall part, the bottom part in use , Underneath, pour in a cementitious material that is prone to cracking in and around at least part of it, and then form so that cracks that form in the cementitious material occur at or near the cracking control means Cracking control means. セメント質物質がコンクリートで構成する請求項１によるセメント質物質本体での亀裂化制御手段。 The means for controlling cracking in a cementitious material body according to claim 1, wherein the cementitious material is composed of concrete. 横断面図で見た場合、側壁部分が側壁部分間の底部の一部と共に三角形を形成する請求項１又は２によるセメント質物質本体での亀裂化制御手段。 The cracking control means in the cementitious substance body according to claim 1 or 2, wherein when viewed in a cross-sectional view, the side wall portions form a triangle together with a part of the bottom between the side wall portions. 三角形頂点から上向きに伸びる伸張部のある請求項３によるセメント質物質本体での亀裂化制御手段。 4. The means for controlling cracking in a cementitious material body according to claim 3, wherein there is an extension extending upward from the apex of the triangle. 多数の該亀裂化制御手段を連結する継ぎ手と組み合わした前請求項のいずれか一つによるセメント質物質本体での亀裂化制御手段。 A cracking control means in a cementitious material body according to any one of the preceding claims in combination with a joint connecting a number of said cracking control means. セメント質物質本体での亀裂化制御手段、伸張底部、底部と壁部分が実質的に逆“T”型である底部から上に伸びる伸張側壁部分及び側壁部分に一個の開口部か複数の開口部を有する手段、使用時にその底部を下に位置して、亀裂し易いセメント質物質をその周りと少なくともその一部で中に注ぎ、次いでセメント質物質内で形成する亀裂が亀裂化制御手段位置かその近辺で起こるように形成する亀裂化制御手段。 Cracking control means in the cementitious material body, stretch bottom, stretch sidewall portion extending upward from bottom that is substantially inverted “T” shape, and one or more openings in the sidewall portion Means having a bottom at the bottom when in use, pouring a fragile cementitious material into and around at least part of it, and then forming a crack in the cementitious material at the cracking control means position Cracking control means formed to occur in the vicinity. セメント質物質がコンクリートで構成する請求項６によるセメント質物質本体での亀裂化制御手段。 The cracking control means in the cementitious material main body according to claim 6, wherein the cementitious material is composed of concrete. 一個の開口部か複数の開口部が場合によっては壁か壁部分の約５０％かそれ以上を占める前請求項のいずれか一つによるセメント質物質本体での亀裂化制御手段。 A means for controlling cracking in a cementitious material body according to any one of the preceding claims, wherein the opening or openings optionally occupy about 50% or more of the wall or wall portion. 図１、２及び３に関するか或いは図４及び５に関してここに記載のような実質的にコンクリート本体での亀裂化制御手段。 Cracking control means in a substantially concrete body as described with respect to FIGS. 1, 2 and 3 or as described herein with reference to FIGS. セメント質物質本体での亀裂化制御手段、二個の実質的にV型伸張部分、V型部分の一頂点内部から伸び出し且つ他V型部分の頂点に伸びた伸張側壁部分及び側壁部分に一個の開口部か複数の開口部を有する手段、使用時にその底部を下に位置して、亀裂し易いセメント質物質をその周りと少なくともその一部で中に注ぎ、次いでセメント質物質内で形成する亀裂が亀裂化制御手段位置かその近辺で起こるように形成する亀裂化制御手段。 Control means for cracking in the cementitious material body, two substantially V-shaped extension portions, one extending side wall portion extending from the inside of one vertex of the V-shaped portion and extending to the top of the other V-shaped portion, and one on the side wall portion Means having one or more openings, with the bottom at the bottom when in use, pouring a fragile cementitious material around and at least partly into it, and then forming within the cementitious material Cracking control means formed so that a crack occurs at or near the cracking control means position. 二個のV型部分が実質的に同一方向に向いた頂点を有する請求項１０による亀裂化制御手段。 11. The cracking control means according to claim 10, wherein the two V-shaped portions have vertices oriented substantially in the same direction. V型部分の頂点が実質的に反対方向に向いた請求項１０による亀裂化制御手段。 11. The cracking control means according to claim 10, wherein the apex of the V-shaped part is substantially directed in the opposite direction. V型部分の一つが実質的に他V型部分より大きい請求項１０、１１、１２又は１３による亀裂化制御手段。 14. A cracking control means according to claim 10, 11, 12 or 13, wherein one of the V-shaped parts is substantially larger than the other V-shaped part. 一個の開口部か複数の開口部が壁部分表面積の少なくとも実質的に約５０％を占める請求項１０、１１又は１３による亀裂化制御手段。 14. The cracking control means according to claim 10, 11 or 13, wherein the opening or openings occupy at least substantially 50% of the wall portion surface area. セメント質物質本体での亀裂化制御手段、伸張底部分と底部と壁部分が実質的に直角を形成する底部から伸びた伸張側壁部分及び壁部分の少なくとも実質的に５０％を占める壁部分の一個の開口部か複数の開口部を有する手段、使用時にその底部を下に位置して、亀裂し易いセメント質物質をその周りと少なくともその一部で中に注ぎ、次いでセメント質物質内で形成する亀裂が亀裂化制御手段位置かその近辺で起こるように形成する亀裂化制御手段。 Means for controlling cracking in the cementitious material body, one of the extended bottom portion and the extended sidewall portion extending from the bottom where the bottom portion and the wall portion form a substantially right angle, and one of the wall portions occupying at least substantially 50% of the wall portion Means having one or more openings, with the bottom at the bottom when in use, pouring a fragile cementitious material around and at least partly into it, and then forming within the cementitious material Cracking control means formed so that a crack occurs at or near the cracking control means position. 図１５、１６、１７及び１８のいずれか一つに関してここに記載の実質的なに亀裂化制御手段。 15. A substantially cracking control means as described herein with respect to any one of FIGS. 以下の手順を含む亀裂化し易いセメント質物質内での亀裂制御法で、
i）前請求項のいずれか一つに記載のような亀裂化制御手段を得、亀裂がセメント質物質内で形成するのが望ましい場所かそれに隣接の位置に配置し、
ii）場合によってはセメント質物質が壁か壁部分周りと少なくとも一部がその中に広がるように大量のセメント質物質を配置し、且つ
iii）亀裂化制御手段位置かその近辺でセメント質物質内で亀裂が形成できる手順を含む亀裂制御法。 A crack control method in a cementitious material that is prone to cracking, including the following steps:
i) obtaining cracking control means as claimed in any one of the preceding claims, placing it at or adjacent to where it is desirable for cracks to form in the cementitious material;
ii) optionally placing a large amount of cementitious material such that the cementitious material extends around and at least partially around the wall or wall portion; and
iii) A crack control method including a procedure in which a crack can be formed in the cementitious material at or near the cracking control means. セメント質物質がコンクリートで構成する請求項１０による方法。 The method according to claim 10, wherein the cementitious material comprises concrete. 以下の手順を含む亀裂化し易いセメント質物質内での亀裂制御法で、
i）亀裂制御要素が底部、底部から伸びた一個の壁か複数の壁及び一個の壁か複数の壁内の一個の開口部か複数の開口部を有する亀裂制御要素を得、亀裂がセメント質物質内で形成するのが望ましい場所に亀裂制御要素を配置し、
ii）セメント質物質が一つの壁か複数の壁周りと少なくとも一部がその中に広がるように大量のセメント質物質を配置し、且つ
iii）亀裂制御要素位置かその近辺でセメント質物質内で亀裂が形成できる手順を含む亀裂制御法。 A crack control method in a cementitious material that is prone to cracking, including the following steps:
i) a crack control element having a bottom, a wall or walls extending from the bottom and a single or multiple openings in the wall or walls, wherein the crack is cementitious Place crack control elements where it is desirable to form in the material,
ii) placing a large amount of cementitious material so that the cementitious material extends around and at least partially around a wall or walls, and
iii) A crack control method including a procedure that allows cracks to form in the cementitious material at or near the crack control element location. 一個の開口部か複数の開口部が一つの壁又は複数の壁表面積の少なくとも５０％を占める請求項１９による方法。 20. The method according to claim 19, wherein the opening or openings occupy at least 50% of the wall or walls.
JP2007517991A 2004-06-25 2005-06-10 Crack control of cementitious materials Pending JP2008503672A (en)

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