JPS6236483A - Method of static shattering and expandable solid agent for shattering - Google Patents
Method of static shattering and expandable solid agent for shatteringInfo
- Publication number
- JPS6236483A JPS6236483A JP17574485A JP17574485A JPS6236483A JP S6236483 A JPS6236483 A JP S6236483A JP 17574485 A JP17574485 A JP 17574485A JP 17574485 A JP17574485 A JP 17574485A JP S6236483 A JPS6236483 A JP S6236483A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- crushing
- agent
- static
- water
- 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.)
- Granted
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 36
- 239000007787 solid Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 235000019441 ethanol Nutrition 0.000 claims abstract description 10
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 238000004898 kneading Methods 0.000 claims abstract description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 8
- 239000008187 granular material Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- -1 dissolve it Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は静的破砕剤を顆粒状、棒状等に固形化するた
めに、溶剤と水の両者に可溶な樹脂を用いて固形化し、
現場施工時に練り混ぜる手間を省略することを目的とす
る破砕用膨張性固形剤及びそれを使用する静的破砕工法
に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] This invention is directed to solidifying a static crushing agent into granules, rods, etc. using a resin that is soluble in both a solvent and water.
The present invention relates to an expansible solid agent for crushing, which aims to omit the labor of mixing during on-site construction, and a static crushing method using the same.
［従来の技術］
従来、静的破砕剤はコンクリートや岩石などの破砕に使
用されており、破砕剤を被破砕体の穿孔中に充填するた
めの静的破砕剤粉末の固形化方法としては、例えば圧縮
成型による方法がある。[Prior Art] Conventionally, static crushing agents have been used to crush concrete, rocks, etc., and methods for solidifying static crushing agent powder for filling crushing agents into holes in objects to be crushed include: For example, there is a method using compression molding.
［発明が解決しようとする問題点］
しかし、成型時の成型圧が小さいと固形化剤の強度が得
られず、すぐに粉化する欠点を有する。[Problems to be Solved by the Invention] However, if the molding pressure during molding is low, the strength of the solidifying agent cannot be obtained and the solidifying agent has the disadvantage of being easily powdered.
また、成型圧が大きい場合は一定の強度が得られても破
砕剤を水和反応させるための水の吸収が悪くなり、反応
時間が遅れ破砕時間が長時間となる傾向がある。Furthermore, if the molding pressure is high, even if a certain level of strength is obtained, the absorption of water for hydrating the crushing agent is poor, and the reaction time tends to be delayed, resulting in a long crushing time.
更には、圧縮成型品は運搬、貯蔵時に形状が崩れ、粉末
部分が多くなり、使用時の水の吸水が悪く、孔に充填し
た場合水が孔下部まで浸透しないなどの欠点を有してい
た。この解決方法としては、水と固形剤を交互に充填す
るなどの繰作が必要となる。Furthermore, compression molded products lose their shape during transportation and storage, have a large amount of powder, have poor water absorption during use, and have drawbacks such as water not penetrating to the bottom of the pores when filled. . To solve this problem, it is necessary to repeatedly fill the container with water and solid agent alternately.
この発明は、上記のような問題点を解決するため（こな
されたもので、運搬、貯蔵時に形状が崩れず、現場施工
時に練り混ぜる手間を省略することができ、水の浸透性
を増加させた静的破砕工法及び破砕用膨張性固形剤を得
ることを目的とする。This invention was developed in order to solve the above-mentioned problems.It does not lose its shape during transportation and storage, eliminates the need for mixing during on-site construction, and increases water permeability. The purpose of this invention is to obtain a static crushing method and an expandable solid agent for crushing.
［問題点を解決するための手段］
即ちこの発明は、静的破砕剤粉末を水及び揮発可能な有
機溶剤に可溶な樹脂の前記溶剤溶液と混練成型してなる
ことを特徴とする破砕用膨張性固形剤である。[Means for Solving the Problems] That is, the present invention provides a crushing agent characterized in that a static crushing agent powder is kneaded and molded with the above-mentioned solvent solution of a resin soluble in water and a volatile organic solvent. It is an expandable solid agent.
この発明の別の発明は、静的破砕剤粉末を水及び揮発可
能な有機溶剤に可溶な樹脂の前記溶剤溶液と混練成型し
てなる破砕用膨張性固形剤を、予め穿孔された被破砕体
の孔の中に充填した後又は該孔に充填する前に水又は静
的破砕剤粉末を水で練り混ぜたスラリーを前記被破砕体
の孔の中に充填することを特徴とする静的破砕工法であ
る。Another invention of the present invention is to prepare an expansible solid agent for crushing by kneading and molding a static crushing agent powder with the solvent solution of a resin soluble in water and a volatile organic solvent. After or before filling the pores of the body, water or a slurry of static crushing agent powder mixed with water is filled into the pores of the body to be crushed. This is a crushing method.
［作 用］
この発明においては、静的破砕剤粉末を固形化する手段
として水及び揮発可能な有機溶剤に可溶な樹脂を接着剤
として成型することにより、粉化することなく形状が保
たれ、成型後有機溶媒の揮発逸散により成型体が多孔性
となるために、現場施工時には破砕剤中にほぼ均一に形
成された気孔中に水を容易に吸水でき、且つ接着剤とし
ての樹脂が水に可溶性であるため、破砕剤成分が容易に
水和反応する。[Function] In this invention, as a means for solidifying the static crushing agent powder, a resin soluble in water and a volatile organic solvent is molded as an adhesive, so that the shape is maintained without pulverization. After molding, the molded body becomes porous due to the volatilization and evaporation of the organic solvent, so water can be easily absorbed into the pores formed almost uniformly in the crushing agent during on-site construction, and the resin as an adhesive is Since it is soluble in water, the crushing agent component easily undergoes a hydration reaction.
この発明に使用することができる静的破砕剤としては、
市販の種々の静的破砕剤（例えば「ケミアックス」（電
気化学工業社製商品名）、「Ｓ−マイト」（住友セメン
ト社製商品名）、「カームマイト」（日本セメント社製
商品名）、「プライスター」（小野田セメント社製商品
名）、「スプリッター」（古注石灰工業社製商品名）、
「サイレックス」（セントラル硝子社製商品名）、「ロ
ックパンチ」（三菱鉱業セメント社製商品名）、「宇部
マイト」（宇部興産社製商品名）等）の１種または２種
以上を混合した粉体が使用可能である。Static crushing agents that can be used in this invention include:
Various commercially available static crushing agents (e.g., "Chemiax" (trade name, manufactured by Denki Kagaku Kogyo Co., Ltd.), "S-Mite" (trade name, manufactured by Sumitomo Cement Co., Ltd.), "Calmite" (trade name, manufactured by Nippon Cement Co., Ltd.), ``Plyster'' (trade name manufactured by Onoda Cement Co., Ltd.), ``Splitter'' (trade name manufactured by Furushu Lime Industry Co., Ltd.),
"Silex" (trade name manufactured by Central Glass Co., Ltd.), "Rock Punch" (trade name manufactured by Mitsubishi Mining Cement Co., Ltd.), "Ube Mite" (trade name manufactured by Ube Industries, Ltd.), etc.) or a mixture of two or more of them. Powder can be used.
この発明に使用する接着剤（固形化剤）としての樹脂は
、酢酸ビニル樹脂、ポリビニルアルコール樹脂、及びス
チロール樹脂の少なくとも１種が好適である。この樹脂
は揮発可能な有機溶剤に溶けると共に水にも可溶である
。即ち、成型された静的破砕剤の接着剤は破砕を行うと
きに現場で用いられる水にも容易に溶解するため、静的
破砕剤の水和反応を抑制することなく水和反応が容易に
進行し、コンクリート、岩石などの被破砕体を容易に破
砕することが可能となる。The resin used as the adhesive (solidifying agent) in this invention is preferably at least one of vinyl acetate resin, polyvinyl alcohol resin, and styrene resin. This resin is soluble in volatile organic solvents and also soluble in water. In other words, the adhesive of the molded static crushing agent easily dissolves in the water used at the site when crushing, so the hydration reaction can be easily carried out without suppressing the hydration reaction of the static crushing agent. As the process progresses, objects to be crushed such as concrete and rocks can be easily crushed.
溶剤としては揮発性の溶剤である一価アルコールが好適
であり、例えばメチルアルコール、エチルアルコール、
ブチルアルコール、及びイソプロピルアルコール等の少
なくとも１種が使用できる。Monohydric alcohols, which are volatile solvents, are suitable as solvents, such as methyl alcohol, ethyl alcohol,
At least one of butyl alcohol and isopropyl alcohol can be used.
これらの溶剤は破砕剤成型後、比較的容易に揮発除去さ
れるから、成型体に多孔性を付与する。Since these solvents are relatively easily volatilized and removed after molding with the crushing agent, they impart porosity to the molded body.
この溶剤を用いて樹脂を溶解し、この溶液を用いて静的
破砕剤を成型すると樹脂が接着剤となるため、容易に任
意の形状を保つことができ、且つ使用した溶剤を揮発乾
燥することにより多孔質の固形剤ができる。この固形剤
の緻密度は、静的破砕剤の真比重の対し１／２〜１／３
程度のものを成型することが可能となる。When the resin is dissolved using this solvent and the static crushing agent is molded using this solution, the resin becomes an adhesive, so it can easily maintain any shape, and the used solvent can be evaporated and dried. This creates a porous solid agent. The density of this solid agent is 1/2 to 1/3 of the true specific gravity of the static crushing agent.
It becomes possible to mold objects of a certain degree.
破砕用膨張性固形剤の成型方法としては、溶剤１００重
景部に対し接着剤となる樹脂を２〜５０重量部加えて溶
解し、この溶液を用いて静的破砕剤を練り混ぜ、成型し
、溶剤の蒸発に伴い混入した樹脂により静的破砕剤を固
形化することができる。成型は手で練り混ぜて粒状、棒
状に成型する方法でも良く、これ以外にパンペレタイザ
ーなどを用いた顆粒、造粒、型枠へ流し込みによる成型
、圧縮成型、押し出し成型などの方法でも良い。なお、
固形剤の形状は任意で良く、被破砕体の孔中の容積の対
し４０〜８０％の充填率が可能となる粒状、棒状などに
成型するだけで良い。The molding method for the expansible solid agent for crushing is as follows: Add 2 to 50 parts by weight of resin as an adhesive to 100 parts of solvent, dissolve it, mix the static crushing agent with this solution, and mold. The static crushing agent can be solidified by the resin mixed in with the evaporation of the solvent. Molding may be done by hand kneading and shaping into granules or rods, or other methods such as granulation, granulation using a pan pelletizer, molding by pouring into a mold, compression molding, extrusion molding, etc. may be used. In addition,
The shape of the solid agent may be arbitrary, and it is sufficient to form it into a granular, rod-like, etc. shape that allows a filling rate of 40 to 80% of the volume in the pores of the object to be crushed.
次に、この発明による静的破砕工法は、上記の破砕用樹
脂系固形剤を予め穿孔された被破砕体の孔の中に充填し
た後又は該孔に充填する前に水又は静的破砕剤粉末を水
で練り混ぜたスラリーを前記被破砕体の孔の中に充填す
ることにより行う。Next, in the static crushing method according to the present invention, after or before filling the holes of the object to be crushed with the resin-based solid agent for crushing, water or static crushing agent is added. This is carried out by filling the pores of the object to be crushed with a slurry of powder mixed with water.
［実施例］ 以下実施例に基づき、本発明をさらに詳細に説明する。[Example] The present invention will be explained in more detail below based on Examples.
市販の静的破砕剤（商品名ニブライスター、小野田セメ
ント株式会社製）を用いて、酢酸ビニル樹脂１０重量部
にエチルアルコール１００重量部で溶解した溶液を滴下
しながら、パンペレタイザーの造粒機で２〜１０ｍｍの
顆粒を造粒しなところ、見掛は比重１６８の顆粒が得ら
れた。この顆粒を乾燥したところ、容易にエチルアルコ
ールが蒸発し、指で押しても潰れない程度の強度のもの
が得られた。この顆粒を用いて６０ｃＩ１１立方体のコ
ンクリートの中央部に孔径φ４０ｍｍ、長さ５０ｃｓ＋
の孔を穿孔し、この孔に上記のように造粒、乾燥した静
的破砕剤の固形剤を４５ｃｍのところまで充填し水を注
入したところ、１８時間で３分割された。Using a commercially available static crushing agent (trade name: NIBBLISTER, manufactured by Onoda Cement Co., Ltd.), a solution of 100 parts by weight of ethyl alcohol dissolved in 10 parts by weight of vinyl acetate resin was dropped in a granulator of a pan pelletizer. When granules of 2 to 10 mm were granulated, granules with an apparent specific gravity of 168 were obtained. When this granule was dried, the ethyl alcohol evaporated easily, and the granules were strong enough not to be crushed even when pressed with a finger. Using these granules, a hole diameter of φ40 mm and a length of 50 cs +
A hole was drilled, and the solid agent of the static crushing agent granulated and dried as described above was filled into the hole to a depth of 45 cm, and water was injected, and the tube was divided into three parts in 18 hours.
同じコンクリート供試体を用い、且つ同一の静的破砕剤
を用いて水で練り混ぜたスラリーを充填したところ、１
７時間後に３分割された。しがし、充填作業は前者は２
分、後者は、粉体、水の計量、及び練り混ぜなどを含め
ると１０分以上を要した。When the same concrete specimen was filled with slurry mixed with water using the same static crushing agent, 1
It was divided into three parts after 7 hours. However, the filling work is 2 for the former.
The latter took more than 10 minutes, including measuring the powder, water, and kneading.
この結果固形剤にした静的破砕剤の破砕効果は、はぼ同
程度であるが、施工に要する作業時間は著しく短縮する
ことができた。As a result, although the crushing effect of the static crushing agent made into a solid agent was about the same, the work time required for construction was significantly shortened.
［発明の効果］
以上のようにこの発明によれば、粉化することなく形状
が保たれ、従来の静的破砕剤粉末のように現場で水を用
いて練り混ぜる手法をとる必要がなく、成型体が多孔性
であるために一様に水を吸収し、水和反応が速やかに進
行する。従って、コンクリート、岩石などの被破砕体に
予め穿孔された孔に破砕用膨張性固形剤を充填した後、
水を浸透させるか又は孔中に水が入っている場合は予め
孔中に水を入れた孔に固形剤を充填するだけで容易に破
砕することができる。[Effects of the Invention] As described above, according to the present invention, the shape is maintained without pulverization, and there is no need to mix on-site using water, unlike conventional static crushing agent powder. Since the molded body is porous, it absorbs water uniformly and the hydration reaction proceeds quickly. Therefore, after filling the expansible solid agent for crushing into holes drilled in advance in the object to be crushed, such as concrete or rock,
It can be easily crushed by allowing water to penetrate or, if water is present in the pores, by simply filling the solid agent into the pores in which water has been previously introduced.
Claims (8)
溶な樹脂の前記溶剤溶液と混練成型してなることを特徴
とする破砕用膨張性固形剤。(1) An expansible solid agent for crushing, characterized in that it is formed by kneading and molding a static crushing agent powder with the above-mentioned solvent solution of a resin soluble in water and a volatile organic solvent.
脂、及びスチロール樹脂の少なくとも１種である特許請
求の範囲第１項記載の破砕用膨張性固形剤。(2) The expandable solid agent for crushing according to claim 1, wherein the resin is at least one of vinyl acetate resin, polyvinyl alcohol resin, and styrene resin.
アルコール、ブチルアルコール、及びイソプロピルアル
コール等からなる群から選ばれた少なくとも１種の一価
アルコール系溶剤である特許請求の範囲第１項記載の破
砕用膨張性固形剤。(3) The crushing according to claim 1, wherein the volatile organic solvent is at least one monohydric alcohol solvent selected from the group consisting of methyl alcohol, ethyl alcohol, butyl alcohol, isopropyl alcohol, etc. Expandable solid agent for use.
部添加したものである特許請求の範囲第１項記載の破砕
用膨張性固形剤。(4) The expansible solid agent for crushing according to claim 1, wherein 2 to 50 parts by weight of resin is added to 100 parts by weight of solvent.
溶な樹脂の前記溶剤溶液と混練成型してなる破砕用膨張
性固形剤を、予め穿孔された被破砕体の孔の中に充填し
た後又は該孔に充填する前に水又は静的破砕剤粉末を水
で練り混ぜたスラリーを前記被破砕体の孔の中に充填す
ることを特徴とする静的破砕工法。(5) An expansible solid agent for crushing, which is obtained by kneading and molding a static crushing agent powder with the solvent solution of a resin soluble in water and a volatile organic solvent, is placed in the pre-drilled holes of the object to be crushed. A static crushing method characterized by filling the holes of the object to be crushed with a slurry obtained by mixing water or static crushing agent powder with water after or before filling the holes.
脂、及びスチロール樹脂の少なくとも１種である特許請
求の範囲第５項記載の静的破砕工法。(6) The static crushing method according to claim 5, wherein the resin is at least one of vinyl acetate resin, polyvinyl alcohol resin, and styrene resin.
アルコール、ブチルアルコール、及びイソプロピルアル
コール等からなる群から選ばれた少なくとも１種の一価
アルコール系溶剤である特許請求の範囲第５項記載の静
的破砕工法。(7) The static liquid according to claim 5, wherein the volatile organic solvent is at least one monohydric alcohol solvent selected from the group consisting of methyl alcohol, ethyl alcohol, butyl alcohol, isopropyl alcohol, etc. Target crushing method.
の容積に対し充填率が４０〜８０％である特許請求の範
囲第５項記載の静的破砕工法。(8) The static crushing method according to claim 5, wherein the expandable solid agent for crushing has a filling rate of 40 to 80% with respect to the volume of the hole in the object to be crushed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17574485A JPS6236483A (en) | 1985-08-12 | 1985-08-12 | Method of static shattering and expandable solid agent for shattering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17574485A JPS6236483A (en) | 1985-08-12 | 1985-08-12 | Method of static shattering and expandable solid agent for shattering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6236483A true JPS6236483A (en) | 1987-02-17 |
| JPH0580516B2 JPH0580516B2 (en) | 1993-11-09 |
Family
ID=16001487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17574485A Granted JPS6236483A (en) | 1985-08-12 | 1985-08-12 | Method of static shattering and expandable solid agent for shattering |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6236483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6192023B1 (en) | 1997-05-28 | 2001-02-20 | Samsung Electronics Co., Ltd | Optical pick-up feeding device having a regulating member to adjust an orientation of a lead screw thereof |
| CN102865787A (en) * | 2012-08-17 | 2013-01-09 | 重庆市爆破工程建设有限责任公司 | Static blasting method |
-
1985
- 1985-08-12 JP JP17574485A patent/JPS6236483A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6192023B1 (en) | 1997-05-28 | 2001-02-20 | Samsung Electronics Co., Ltd | Optical pick-up feeding device having a regulating member to adjust an orientation of a lead screw thereof |
| CN102865787A (en) * | 2012-08-17 | 2013-01-09 | 重庆市爆破工程建设有限责任公司 | Static blasting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0580516B2 (en) | 1993-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |