JPH023880B2 - - Google Patents
Info
- Publication number
- JPH023880B2 JPH023880B2 JP10095981A JP10095981A JPH023880B2 JP H023880 B2 JPH023880 B2 JP H023880B2 JP 10095981 A JP10095981 A JP 10095981A JP 10095981 A JP10095981 A JP 10095981A JP H023880 B2 JPH023880 B2 JP H023880B2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- capsule
- container
- water
- medium
- 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
- 239000002775 capsule Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000004568 cement Substances 0.000 description 11
- 239000004576 sand Substances 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 229910052602 gypsum Inorganic materials 0.000 description 5
- 239000010440 gypsum Substances 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 229920002554 vinyl polymer Polymers 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 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 3
- 239000003513 alkali Substances 0.000 description 3
- 229910052925 anhydrite Inorganic materials 0.000 description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 3
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910004261 CaF 2 Inorganic materials 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 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 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- -1 calcium aluminates Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000174 gluconic acid Substances 0.000 description 2
- 235000012208 gluconic acid Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Landscapes
- Rock Bolts (AREA)
Description
本発明は、穿孔内にボルト等を定着する方法及
び穿孔内にボルト等を定着させる場合に接着剤と
して用いるカプセルに関する。
従来から、穿孔内にボルト等を定着する方法は
いろいろ提案されているが、例えば、耐水紙等に
アルミナセメント等を充填したカートリツジを水
に浸漬して穿孔内に入れボルト等を定着する方法
があるが、この方法では吸水時間が長く、水比を
一定に保ちにくいため定着に時間がかかり強度が
十分発揮できない。
本発明は、これらの欠点を解決することを目的
とするものであつて、急結性セメントなどの硬化
剤と毛細管現象により、その硬化液を硬化剤中に
分散させる機能を有する媒体物とを容器中に含有
したカプセルを硬化液に浸漬しボルト等を穿孔内
に挿入して定着させる際にカプセルを短時間硬化
液に浸漬するだけで穿孔内に挿入しボルト等によ
つて容器を破壊することにより、従来例のものに
比べてその作業性にすぐれ、さらにその定着した
ボルト等の引抜き耐力が大であるというすぐれた
穿孔内にボルト等を定着する方法およびそれに用
いるカプセルを提供しようとするものである。
すなわち、本発明の第１の発明は、穿孔内にボ
ルト等を定着させるカプセルにおいて、挿入ボル
ト等の衝撃により破壊可能な容器に硬化剤と媒体
物とを含有させたものからなり、その媒体物は硬
化液を吸収すると共に硬化剤と反応可能な程度に
硬化液を離脱する性質を有するものであり、しか
もその一部が容器外部に露出してなる穿孔内にボ
ルト等の定着用カプセルを硬化液に５分以下浸漬
した後、これを穿孔内に挿入し、次いでボルト等
を挿入して、前記カプセルを破壊することを特徴
とする。
また、第２の発明は、挿入ボルト等の衝撃によ
り破壊可能な容器に、硬化剤と媒体物とを含有さ
せたものからなり、その媒体物は硬化液を吸収す
ると共に硬化剤と反応可能な程度に硬化液を離脱
する性質を有するものであり、しかもその一部が
容器外部に露出してなる、穿孔内にボルト等を定
着させるのに用いるカプセルである。
以下さらに本発明を説明する。
本発明のカプセルは、図示の通り、容器１内
に、硬化剤２と媒体物３を充填してなり、しかも
媒体物の一部を容器外部に露出４させて、硬化液
の吸収部としたものである。
本発明で使用される容器としては、ガラス、合
成樹脂等の通気性のない容器及び通気性を有し、
かつ内容物の硬化剤と媒体物が外部に露出しない
材料、例えば紙等の容器のいずれであつてもよい
が、これらの中、通気性の容器であつて、ボルト
等の挿入時の衝撃により容易に破壊するものが好
ましい。この理由は、後記の如くカプセルを穿孔
挿入前に短時間水に浸漬させる際に、急結性セメ
ントが十分に吸収できることが必要であるからで
ある。また、具体例としては、和紙、細孔を有す
るポリビニルアルコールフイルムなどがあげら
れ、特に和紙は前記の条件を具備し、しかも運搬
等の取扱いに際し簡単に破損しないものであるの
で好ましい。また比較的高鹸化度のポリビニルア
ルコールフイルムは、長時間水に浸してもフイル
ム自体が膨潤し、含水比が一定化でき、しかもボ
ルト等による混合時にモルタル中に混入すると、
接着力が高められて好ましい。
また、その容器は、通常内部に硬化剤と媒体物
を充填可能とした直径約３cm程度の棒状の袋など
の形状からなり、しかもその長さは60cm程度のも
のから構成するが、その長さなどには制限なく、
穿孔長さに応じ取扱い容易なものであればよい。
また、穿孔内への挿入時に所定の強度を保持する
ために、その内側または外側にポリスチレン等の
筒状、板状材を介在させ、この筒状又は板状材に
穴を形成して吸水性を保持することもできる。
硬化剤は、水硬性無機物質や有機化合物のいず
れでもよいが、有機化合物の硬化液は、通常、有
機過酸化物が使用されるため、取扱いに注意を要
するので水硬性無機物質が好ましい。有機化合物
としては、不飽和ポリエステル樹脂、ウレタン系
樹脂などがあげられる。
水硬性無機物質としては、普通、早強、超早強
などのポルトランド系セメントや急結性セメント
があげられるが、急結性セメントを使用すること
が好ましい。
急結性セメントは主成分のセメント成分として
ポルトランド系セメントを含み、このセメント成
分にカルシウムアルミネート、石膏ならびに砂と
ともに、有機酸および／または炭酸アルカリを配
合し、しかも、これら各成分は後記のボルト等の
撹拌時に水との接触により５〜20分間程度で硬化
するよう配合するのが最も好ましい。このポルト
ランド系セメントは市販のものが使用でき、カル
シウムアルミネートとしてはCaOをＣ、Al2O3を
Ａで示すと、CA2、CA、C12A7、C11A7CaF2、
C3A3CaF2、C3A及びその無定形物、アルミナセ
メントなどが使用できる。また石膏としては無水
石膏、半水石膏、２水石膏などが使用でき、なか
でも無水石膏が好ましい。有機酸としては、クエ
ン酸、グルコン酸などが使用でき、炭酸アルカリ
としては、炭酸ソーダ、炭酸カリウム等が使用で
きる。
また、砂はある程度の吸水性が保持できる粒度
のものが必要であつて、通常は４〜６号程度のも
のが好ましく、あまり粒度が細かいものは保水性
が劣り好ましくない。砂は穿孔挿入前の浸水時間
の短縮化に役立つ。砂の粒度ならびに配合量は保
水性や浸水時間の短縮化の上から決めるべきであ
る。
これらの成分は、穿孔内においてボルト等によ
る水との混合接触により固化する際に、ボルト等
の引き抜き強度が10トン／ｍ以上で、しかも、可
使時間が５〜20分間であるよう配合するが、各成
分の配合例を示すと、重量部でポルトランド系セ
メント100部ならびに砂100部に対してカルシウム
アルミネート５〜20部、石膏５〜20部、有機酸
0.01〜５部、炭酸アルカリ0.05〜10部が好まし
い。
水硬性無機物質の硬化液は水であるが、そこに
は、硬化促進材や硬化遅延剤等を溶解したもので
あつてもよい。
次に、媒体物は、硬化液を吸収して自ら保有す
ると共に他に伝達し、かつ硬化剤と反応できる程
度に離脱する性質を有するものであり、具体的物
質としては、紙、麻、木綿、ガラス繊維、有機繊
維、セラミツク繊維、金属繊維、毛細管等が使用
できる。容器中に充填する方法としては硬化剤と
混合しても良く、図示のように、ひも状又は布状
とした繊維物質を中心部に位置させてもよい。後
者の方法によると、短時間に硬化液を吸収伝達で
きる利点がある。しかし、容器内部に充填した媒
体物に硬化液を伝達する手段が必要となるので、
媒体物の一部を容器外部に数ミリ露出させる。露
出部は１ケ所でもよいが、２ケ所以上が好まし
い。
本発明のカプセルを使用すれば、定着時間が短
縮され、強度も大となる効果がある。
上記構成のカプセルによつてボルト等を固定す
るにはこのカプセルを予め数秒〜数分間、好まし
くは１〜15秒間水中に浸漬し、その後穿孔内に挿
入してから、これにボルト等を挿入し、ボルト等
で容器に衝撃を与えて内容物を露出させ撹拌す
る。このように撹拌すると、硬化剤は硬化液と接
触して固化し、とくに、硬化剤として、前記の急
結性セメントを用いた場合、その可使時間は５〜
20分と長いにも拘らず、硬化時間が短かくなり極
めて作業性が優れる。また、使用に当つては、水
比を一定として強度性状を管理する目的で定量の
水を吸収させることが好ましい。
なお、上記の如くカプセルを水中で浸漬し吸水
状態を形成する代わりに、湧水の多い穿孔では穿
孔中にそのまま挿入することができる。この時は
湧水によつて吸水状態が形成できるためである。
以下実施例をあげて本発明を更に詳しく説明す
る。
実施例 １
長さ500mm、直径400mmのビニルチユーブ及び吸
水性紙袋にポルトランドセメントと５号硅砂を
１：１の割合で混合した乾燥モルタルの1000ｇを
充填し、その端部をアルミニウム口金で止めた。
なおこの時にビニルチユーブのほぼ中心に直径５
mmの木綿紙や布を入れビニルチユーブの両端より
約５mm出しアルミニウム製口金で止めカプセルと
した。次いでカプセルを水に浸漬時間を変えて、
その吸水重量を測定した。その結果を第１表に示
す。
The present invention relates to a method for fixing a bolt or the like in a borehole, and a capsule used as an adhesive when fixing a bolt or the like in a borehole. Up until now, various methods have been proposed for fixing bolts, etc. in the borehole, but for example, a method of fixing the bolt, etc. by soaking a cartridge filled with alumina cement, etc. in waterproof paper, etc. in water and placing it in the borehole has been proposed. However, with this method, the water absorption time is long, and it is difficult to maintain a constant water ratio, so it takes time to fix, and the strength cannot be fully demonstrated. The present invention aims to solve these drawbacks, and uses a hardening agent such as a quick-setting cement and a medium having the function of dispersing the hardening liquid into the hardening agent by capillary action. When a capsule contained in a container is immersed in a hardening liquid and a bolt or the like is inserted into the hole to fix it, the capsule is simply immersed in the hardening liquid for a short time, then inserted into the hole and the container is destroyed by the bolt or the like. In this way, it is an object of the present invention to provide a method for fixing a bolt, etc. in a hole, which is superior in workability compared to conventional methods, and further has a high pulling strength for the fixed bolt, etc., and a capsule used therein. It is something. That is, the first aspect of the present invention is a capsule for fixing a bolt or the like in a hole, which is made of a container that can be broken by the impact of the inserted bolt or the like and contains a hardening agent and a medium. It has the property of absorbing the curing liquid and releasing the curing liquid to the extent that it can react with the curing agent, and furthermore, it is used to harden the fixing capsule such as a bolt in the perforation where a part of it is exposed to the outside of the container. After being immersed in a liquid for 5 minutes or less, the capsule is inserted into a hole, and then a bolt or the like is inserted to destroy the capsule. In addition, the second invention consists of a container that can be broken by the impact of an insertion bolt or the like and contains a hardening agent and a medium, and the medium can absorb the hardening liquid and react with the hardening agent. It is a capsule used to fix a bolt or the like in a perforation, which has the property of releasing hardening liquid to a certain extent, and has a part exposed outside the container. The present invention will be further explained below. As shown in the figure, the capsule of the present invention has a container 1 filled with a hardening agent 2 and a medium 3, and a part of the medium is exposed 4 to the outside of the container to serve as an absorption part for the hardening liquid. It is something. Containers used in the present invention include non-ventilated containers made of glass, synthetic resin, etc., as well as containers with ventilated properties,
The container may be made of a material such as paper that does not expose the hardening agent and medium inside the container to the outside, but the container must be air-permeable so that the impact of inserting a bolt, etc. It is preferable to use one that can be easily destroyed. The reason for this is that when the capsule is immersed in water for a short time before being inserted into the hole as described below, it is necessary that the quick-setting cement can be sufficiently absorbed. Further, specific examples include Japanese paper, polyvinyl alcohol film having pores, etc. Japanese paper is particularly preferred because it satisfies the above conditions and is not easily damaged during handling such as transportation. In addition, polyvinyl alcohol film with a relatively high degree of saponification swells even if soaked in water for a long time, making it possible to maintain a constant water content ratio.
It is preferable because the adhesive strength is enhanced. In addition, the container usually has a shape such as a rod-shaped bag with a diameter of about 3 cm that can be filled with a hardening agent and a medium, and the length is about 60 cm. There is no limit to
It may be of any material that is easy to handle depending on the length of the hole.
In addition, in order to maintain the specified strength when inserted into the borehole, a cylindrical or plate-shaped material such as polystyrene is inserted inside or outside the hole, and a hole is formed in this cylindrical or plate-shaped material to absorb water. can also be held. The curing agent may be either a hydraulic inorganic substance or an organic compound, but a hydraulic inorganic substance is preferable since an organic peroxide is usually used in the curing liquid of an organic compound, which requires careful handling. Examples of organic compounds include unsaturated polyester resins and urethane resins. Examples of the hydraulic inorganic substance include ordinary, early-strength, and ultra-early-strength Portland cements and quick-setting cements, and it is preferable to use quick-setting cements. Rapid-setting cement contains Portland cement as the main cement component, and this cement component is blended with calcium aluminate, gypsum, and sand, as well as organic acid and/or alkali carbonate, and each of these components is It is most preferable to mix the composition so that it hardens in about 5 to 20 minutes upon contact with water during stirring with a bolt or the like. Commercially available Portland cements can be used, and as calcium aluminates, where CaO is C and Al 2 O 3 is A, CA 2 , CA, C 12 A 7 , C 11 A 7 CaF 2 ,
C 3 A 3 CaF 2 , C 3 A and its amorphous material, alumina cement, etc. can be used. Further, as the gypsum, anhydrite, hemihydrate gypsum, dihydrate gypsum, etc. can be used, and anhydrite gypsum is particularly preferred. As the organic acid, citric acid, gluconic acid, etc. can be used, and as the alkali carbonate, soda carbonate, potassium carbonate, etc. can be used. In addition, the sand must have a particle size that can maintain a certain level of water absorption, and is usually preferably about size 4 to 6. If the particle size is too fine, the water retention property will be poor and it is not preferable. Sand helps shorten the soaking time before inserting the borehole. The particle size and amount of sand to be mixed should be determined based on water retention and shortening of soaking time. These components are mixed so that when solidified by mixing and contact with water by bolts, etc. in the borehole, the pull-out strength of bolts, etc. is 10 tons/m or more, and the pot life is 5 to 20 minutes. However, an example of the composition of each component is 100 parts by weight of Portland cement and 100 parts of sand, 5 to 20 parts of calcium aluminate, 5 to 20 parts of gypsum, and organic acid.
0.01 to 5 parts, preferably 0.05 to 10 parts of alkali carbonate. The curing liquid of the hydraulic inorganic substance is water, but it may also contain a curing accelerator, curing retardant, etc. dissolved therein. Next, the medium has the property of absorbing the curing liquid, retaining it, transmitting it to others, and releasing to the extent that it can react with the curing agent. Specific materials include paper, linen, and cotton. , glass fiber, organic fiber, ceramic fiber, metal fiber, capillary tube, etc. can be used. The container may be filled by mixing with a curing agent, or by placing a fibrous material in the form of a string or cloth in the center as shown in the figure. The latter method has the advantage that the curing liquid can be absorbed and transferred in a short time. However, since a means to transfer the curing liquid to the medium filled inside the container is required,
A portion of the media is exposed several millimeters outside the container. There may be only one exposed portion, but two or more exposed portions are preferred. Use of the capsule of the present invention has the effect of shortening fixing time and increasing strength. To fix bolts, etc. using the capsule configured as described above, first immerse the capsule in water for several seconds to several minutes, preferably 1 to 15 seconds, then insert it into the borehole, and then insert the bolt, etc. , shock the container with a bolt, etc. to expose and stir the contents. When stirred in this way, the hardening agent comes into contact with the hardening liquid and solidifies, and especially when the above-mentioned quick-setting cement is used as the hardening agent, its pot life is 5 to 5.
Although it takes only 20 minutes, the curing time is short and workability is extremely high. Furthermore, during use, it is preferable to absorb a certain amount of water in order to maintain a constant water ratio and manage strength properties. In addition, instead of immersing the capsule in water to form a water-absorbing state as described above, it is possible to insert the capsule as it is into the borehole in a borehole where there is a lot of spring water. This is because at this time, a water absorption state can be formed by the spring water. The present invention will be explained in more detail with reference to Examples below. Example 1 A vinyl tube with a length of 500 mm and a diameter of 400 mm and a water-absorbing paper bag were filled with 1000 g of dry mortar made by mixing Portland cement and No. 5 silica sand at a ratio of 1:1, and the ends were secured with aluminum caps.
At this time, a diameter of 5 mm is placed approximately in the center of the vinyl tube.
About 5 mm of cotton paper or cloth was inserted into the vinyl tube from both ends and secured with an aluminum cap to form a capsule. The capsules were then immersed in water for varying lengths of time.
The water absorption weight was measured. The results are shown in Table 1.
【表】
なお、比較のため、媒体物を入れずにビニルチ
ユーブの両端を開いたままのもの及び紙袋で同様
の試験を行つた。その結果、比較例のビニルチユ
ーブ品は５分後においても充分中心まで吸水して
いなかつた。本発明品では中心まで吸水し15秒以
内に使用できる状況であつた。
実施例 ２
ポルトランドセメント450ｇ、カルシウムアル
ミネート（無定形C12A7ブレーン値5000cm2／ｇ）
90ｇ及び無水石膏（ブレーン値7000cm2／ｇ）90ｇ
を混合し急結性セメントを混合した。更にこの急
結性セメントにクエン酸３ｇ、グルコン酸１ｇ、
炭酸カリウム７ｇ、５号硅砂630ｇ加え混合した
以外は実施例１と同様に行つた。このカプセル重
量は１Kgであつた。これを15秒間水につけた重量
を測定後、石灰岩に堀つた1.0ｍ×直径50mmの穴
へ１ケ入れ32mmφ×1.5ｍ異形棒鋼のボルトを回
転しながら押し込み固定した。ボルトセツト後30
分でボルトを油圧ジヤツキで引き抜き、その定着
強度を測定した。その結果を第２表に示す。ま
た、比較のために、媒体物を入れないものを実施
例１と同様の方法で水につけた結果も第２表に示
した。
なお実験No.９のものは中心まで水が侵入してお
らず、また実験No.12は硬くボルトの定着は困難で
あつた。[Table] For comparison, similar tests were conducted using a vinyl tube with both ends open without any media inserted, and a paper bag. As a result, the vinyl tube product of the comparative example did not absorb enough water to the center even after 5 minutes. The product of the present invention absorbed water to the center and could be used within 15 seconds. Example 2 Portland cement 450g, calcium aluminate (amorphous C 12 A 7 Blaine value 5000cm 2 /g)
90g and anhydrite (Brain value 7000cm 2 /g) 90g
was mixed with quick-setting cement. Furthermore, 3 g of citric acid, 1 g of gluconic acid,
The same procedure as in Example 1 was carried out except that 7 g of potassium carbonate and 630 g of No. 5 silica sand were added and mixed. The weight of this capsule was 1Kg. After soaking it in water for 15 seconds and measuring its weight, one piece was inserted into a 1.0 m x 50 mm diameter hole drilled in limestone, and a 32 mm diameter x 1.5 m deformed steel bar bolt was pushed in and fixed while rotating. 30 after bolt set
The bolt was pulled out using a hydraulic jack and its fixation strength was measured. The results are shown in Table 2. For comparison, Table 2 also shows the results of soaking samples without medium in water in the same manner as in Example 1. In Experiment No. 9, water did not penetrate to the center, and in Experiment No. 12, it was hard and difficult to fix the bolt.
図面は、本発明の実施例のカプセルの断面図で
ある。
付号、１……容器、２……硬化剤、３……媒体
物、４……媒体物の露出部。
The drawing is a cross-sectional view of a capsule according to an embodiment of the invention. Numbers: 1...Container, 2...Curing agent, 3...Medium, 4...Exposed portion of medium.
Claims (1)
いて、挿入ボルト等の衝撃により破壊可能な容器
に、硬化剤と媒体物とを含有させたものからな
り、その媒体物は硬化液を吸収すると共に硬化剤
と反応可能な程度に硬化液を離脱する性質を有す
るものであり、しかもその一部が容器外部に露出
してなるボルト等の定着用カプセルを、硬化液に
５分以下浸漬した後、これを穿孔内に挿入し、次
いでボルト等を挿入して、前記カプセルを破壊す
ることを特徴とする穿孔内にボルト等を定着させ
る方法。 ２ 挿入ボルト等の衝撃により破壊可能な容器
に、硬化剤と媒体物とを含有させたものからな
り、その媒体物は硬化液を吸収すると共に硬化剤
と反応可能な程度に硬化液を離脱する性質を有す
るものであり、しかもその一部が容器外部に露出
してなる、穿孔内にボルト等を定着させるのに用
いるカプセル。[Claims] 1. A capsule for fixing a bolt or the like in a hole, which is made of a container that can be broken by the impact of an inserted bolt or the like and contains a hardening agent and a medium, and the medium contains a hardening liquid. A fixing capsule such as a bolt, which has a part exposed outside the container, is immersed in the curing liquid for less than 5 minutes. A method for fixing a bolt or the like in a borehole, which comprises inserting the capsule into the borehole after immersion, and then inserting a bolt or the like to destroy the capsule. 2. A container that can be broken by the impact of an insertion bolt, etc. contains a hardening agent and a medium, and the medium absorbs the hardening liquid and releases the hardening liquid to the extent that it can react with the hardening agent. A capsule used to fix a bolt, etc. in a perforation, which has a certain property and a part of which is exposed outside the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10095981A JPS584098A (en) | 1981-06-29 | 1981-06-29 | Method of fixing bolt, etc. into bored hole and capsule used for said method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10095981A JPS584098A (en) | 1981-06-29 | 1981-06-29 | Method of fixing bolt, etc. into bored hole and capsule used for said method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS584098A JPS584098A (en) | 1983-01-11 |
| JPH023880B2 true JPH023880B2 (en) | 1990-01-25 |
Family
ID=14287887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10095981A Granted JPS584098A (en) | 1981-06-29 | 1981-06-29 | Method of fixing bolt, etc. into bored hole and capsule used for said method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS584098A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7424887B2 (en) * | 2020-03-27 | 2024-01-30 | 住友大阪セメント株式会社 | Cold-resistant inorganic anchor material and method for fixing anchor members using the anchor material |
-
1981
- 1981-06-29 JP JP10095981A patent/JPS584098A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS584098A (en) | 1983-01-11 |
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