JP2002307422A - Method for manufacture of hydraulic mixture - Google Patents
Method for manufacture of hydraulic mixtureInfo
- Publication number
- JP2002307422A JP2002307422A JP2001117018A JP2001117018A JP2002307422A JP 2002307422 A JP2002307422 A JP 2002307422A JP 2001117018 A JP2001117018 A JP 2001117018A JP 2001117018 A JP2001117018 A JP 2001117018A JP 2002307422 A JP2002307422 A JP 2002307422A
- Authority
- JP
- Japan
- Prior art keywords
- water
- hydraulic
- mixture
- hydraulic mixture
- slurry
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Lining And Supports For Tunnels (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、水硬性混合物の
製造方法に関し、特に、シールドトンネルのテールボイ
ドの充填用グラウト材や、山岳トンネルの裏込め注入用
グラウト材に好適に用いられる水硬性混合物の製造方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a hydraulic mixture, and more particularly to a hydraulic mixture suitable for use as a grout material for filling a tail void of a shield tunnel or a grout material for backfilling a mountain tunnel. It relates to a manufacturing method.
【０００２】[0002]
【従来の技術】シールドトンネルのテールボイドの充填
用グラウト材や、山岳トンネルの裏込め注入用グラウト
材には、必要な個所にだけ充填することができる限定注
入を可能にするために、加圧や振動の印加により容易に
流動する可塑性を備えていることが望ましい。2. Description of the Related Art Grout materials for filling tail voids in shield tunnels and grout materials for backfilling in mountain tunnels are pressurized to enable limited injection that can be filled only at required locations. It is desirable to have plasticity that flows easily by application of vibration.
【０００３】そこで、従来は、水硬性セメントが含まれ
たグラウト材に、水膨潤性のベントナイトを添加して、
上述したような可塑性が得られる水硬性混合物を得てい
た。Therefore, conventionally, water-swellable bentonite is added to a grout material containing hydraulic cement,
A hydraulic mixture having the above-mentioned plasticity was obtained.
【０００４】水硬性セメントが含まれている水硬性混合
物にベントナイトを添加すると、水硬性セメントの水和
の際に生じたカルシウムイオンが、水に接触することで
膨潤・分散したベントナイト粒子の表面に吸着され、電
気化学的にゲル化することを利用して、水硬性混合物の
粘性を増加させる。[0004] When bentonite is added to a hydraulic mixture containing hydraulic cement, calcium ions generated during hydration of the hydraulic cement contact the surface of the bentonite particles swelled and dispersed by contact with water. The viscosity of the hydraulic mixture is increased by utilizing the absorbed and electrochemically gelled.
【０００５】ところで、このような機能を有する水硬性
混合物は、従来、水および水硬性セメントとベントナイ
ト、または、水および水硬性セメントとベントナイトと
細骨材を一括投入して、混合・攪拌することで製造され
ていたが、このような水硬性混合物の製造方法には、以
下に説明する課題があった。[0005] By the way, conventionally, a hydraulic mixture having such a function is prepared by adding water and hydraulic cement and bentonite or water and hydraulic cement and bentonite and fine aggregate at once and mixing and stirring. However, such a method for producing a hydraulic mixture has the following problems.
【０００６】[0006]
【発明が解決しようとする課題】すなわち、ベントナイ
トと水硬性セメントなどを一括投入して水硬性混合物を
製造する方法では、ベントナイトが水と接触することに
より発揮される膨潤作用が、水硬性セメントの水和によ
って生じるカルシウムイオンにより阻害されるため、混
合物の粘性を高めるために、必要以上のベントナイトを
添加しなければならず、経済的な面での不利益が大きく
なっていた。That is, in the method of producing a hydraulic mixture by simultaneously charging bentonite and hydraulic cement, etc., the swelling effect exerted by the contact of bentonite with water is reduced by the hydraulic cement. Since it is inhibited by calcium ions generated by hydration, more bentonite must be added than necessary in order to increase the viscosity of the mixture, resulting in a great economic disadvantage.
【０００７】本発明は、このような従来の問題点に鑑み
てなされたものであって、その目的とするところは、粘
性を高めることに必要な量の膨潤性物質を添加すること
で、経済的な水硬性混合物が得られる水硬性混合物の製
造方法を提供することにある。The present invention has been made in view of such conventional problems, and an object of the present invention is to add an amount of a swelling substance necessary for increasing the viscosity to achieve economical efficiency. It is an object of the present invention to provide a method for producing a hydraulic mixture from which a typical hydraulic mixture can be obtained.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、水と、水硬性セメントと、硬化遅延剤
と、ベントナイトなどの水膨潤性物質と、必要に応じて
添加される骨材とを含む水硬性混合物の製造方法におい
て、前記水膨潤性物質と前記水と事前に混合・攪拌し、
この後に、所定時間静置して、前記水膨潤性物質を十分
に膨潤・分散させたスラリーを作製するようにした。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a water swellable substance such as water, a hydraulic cement, a setting retarder, and bentonite. In the method for producing a hydraulic mixture containing an aggregate, the water swellable substance and the water are mixed and stirred in advance,
Thereafter, the slurry was allowed to stand for a predetermined time to prepare a slurry in which the water-swellable substance was sufficiently swollen and dispersed.
【０００９】このように構成した水硬性混合物の製造方
法によれば、水膨潤性物質と水とを事前に混合・攪拌
し、この後に、所定時間静置して、水膨潤性物質を十分
に膨潤・分散させたスラリーを作製するので、水膨潤性
物質を膨潤させる際には、水硬性セメントの水和により
発生するカルシウムイオンが存在していない。According to the method for producing a hydraulic mixture thus constituted, the water-swellable substance and water are mixed and stirred in advance, and then the mixture is allowed to stand for a predetermined time to sufficiently remove the water-swellable substance. Since a swelled and dispersed slurry is prepared, calcium ions generated by hydration of hydraulic cement are not present when the water-swellable substance is swollen.
【００１０】このため、カルシウムイオンが水膨潤性物
質の膨潤作用に影響を及ぼすことがなくなる。Therefore, calcium ions do not affect the swelling action of the water-swellable substance.
【００１１】また、水膨潤性物質は、水膨潤性物質と水
とを事前に混合・攪拌し、所定時間静置して十分に膨潤
・分散させるので、水膨潤性物質は、粘性を高めるのに
必要な量だけ添加すればよく、従来の製造方法よりも水
膨潤性物質の添加量の低減を図ることができる。In addition, the water-swellable substance mixes and stirs the water-swellable substance and water in advance, and is allowed to stand for a predetermined time to sufficiently swell and disperse. And the amount of the water-swellable substance can be reduced as compared with the conventional production method.
【００１２】さらに、水膨潤性物質の添加量が低減する
と、水硬性混合物の比重が小さくなり、例えば、トンネ
ル覆工の裏込め用グラウトとして用いた場合には、覆工
部の荷重を軽減することができ、山岳トンネルの裏込め
注入用グラウト材として好適に用いることができる。Further, when the amount of the water-swellable substance is reduced, the specific gravity of the hydraulic mixture becomes smaller. For example, when the mixture is used as grout for backfilling of a tunnel lining, the load on the lining portion is reduced. It can be suitably used as a grout material for backfilling of mountain tunnels.
【００１３】本発明の製造方法では、前記スラリーに前
記水硬性セメントと前記硬化遅延剤、または、前記水硬
性セメントと前記硬化遅延剤および前記骨材とを混練す
ることができる。In the production method of the present invention, the hydraulic cement and the setting retarder, or the hydraulic cement, the setting retarder and the aggregate can be kneaded with the slurry.
【００１４】また、本発明の製造方法では、前記水硬性
セメントと前記骨材とを予め混練してモルタルを作製す
ることができる。In the production method of the present invention, the mortar can be prepared by previously kneading the hydraulic cement and the aggregate.
【００１５】[0015]
【発明の実施の形態】以下、本発明の好適な実施の形態
について、添付図面に基づいて詳細に説明する。図１
は、本発明にかかる水硬性混合物の製造方法の一実施例
を、工程順に示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG.
Shows an embodiment of a method for producing a hydraulic mixture according to the present invention in the order of steps.
【００１６】同図に示した製造方法では、水硬性混合物
Ａの構成材料には、水Ｗと、ベントナイトなどの水膨潤
性物質Ｂと、水硬性セメントＣと、細骨材ｓと、硬化遅
延剤Ｚとが用いられる。In the manufacturing method shown in the figure, the constituent materials of the hydraulic mixture A include water W, a water-swellable substance B such as bentonite, a hydraulic cement C, a fine aggregate s, a setting retardation. Agent Z is used.
【００１７】水硬性混合物Ａを製造する際には、まず、
図１（Ａ）に示すように、ミキサ１０内に、所定量の水
Ｗと、所定量の水膨潤性物質Ｂとが投入され、これらが
事前に混合・攪拌される。In producing the hydraulic mixture A, first,
As shown in FIG. 1A, a predetermined amount of water W and a predetermined amount of a water-swellable substance B are charged into a mixer 10, and these are mixed and stirred in advance.
【００１８】そして、水Ｗと水膨潤性物質Ｂとが所定時
間攪拌されると、次に、図１（Ｂ）に示すように、ミキ
サ１０の混合・攪拌を停止して、所定時間静置する。こ
の静置させる時間は、水膨潤性物質Ｂを十分に膨潤・分
散させて、スラリーＳとするために設けられる時間であ
って、水膨潤性物質Ｂの量などに対応して、適宜設定さ
れる。When the water W and the water-swellable substance B are stirred for a predetermined time, the mixing and stirring of the mixer 10 is stopped as shown in FIG. I do. The time for this standing is a time provided for sufficiently swelling and dispersing the water-swellable substance B to form the slurry S, and is appropriately set according to the amount of the water-swellable substance B and the like. You.
【００１９】所定時間静置して、水膨潤性物質Ｂを十分
に膨潤・分散させたスラリーＳが作製されると、次に、
図１（Ｃ）に示すように、ミキサ１０内に水硬性セメン
トＣと、硬化遅延剤Ｚおよび細骨材ｓを投入して、これ
らを混練することにより所定配合比率の水硬性混合物Ａ
を製造する。When the slurry S in which the water-swellable substance B has been sufficiently swelled and dispersed is produced by allowing to stand for a predetermined time,
As shown in FIG. 1 (C), a hydraulic cement C, a setting retarder Z and a fine aggregate s are charged into a mixer 10 and kneaded to obtain a hydraulic mixture A having a predetermined mixing ratio.
To manufacture.
【００２０】このように構成した水硬性混合物Ａの製造
方法によれば、水膨潤性物質Ｂと水Ｗとを事前に混合・
攪拌し、この後に、所定時間静置して、水膨潤性物質Ｂ
を十分に膨潤・分散させたスラリーＳを作製するので、
水膨潤性物質Ｂを膨潤させる際には、水硬性セメントＣ
の水和により発生するカルシウムイオンが存在していな
い。According to the method for producing the hydraulic mixture A thus constituted, the water-swellable substance B and the water W are mixed in advance.
The water-swellable substance B
To make a slurry S in which swelling / dispersion is sufficient,
When swelling the water-swellable substance B, the hydraulic cement C
There is no calcium ion generated by the hydration of.
【００２１】このため、カルシウムイオンが水膨潤性物
質Ｂの膨潤作用に影響を及ぼすことがなくなる。Therefore, calcium ions do not affect the swelling action of the water-swellable substance B.
【００２２】また、水膨潤性物質Ｂは、水膨潤性物質Ｂ
と水Ｗと事前に混合・攪拌し、所定時間静置して十分に
膨潤・分散させるので、粘性を高めるのに必要な量だけ
添加すればよく、従来の製造方法よりも水膨潤性物質Ｂ
の添加量の低減を図ることができる。The water-swellable substance B is a water-swellable substance B
And water W are mixed and stirred in advance, and allowed to stand for a predetermined time to sufficiently swell and disperse. Therefore, it is sufficient to add only an amount necessary for increasing the viscosity.
Can be reduced.
【００２３】さらに、水膨潤性物質Ｂの添加量が低減す
ると、水硬性混合物Ａの比重が小さくなり、例えば、ト
ンネル覆工の裏込め用グラウトとして用いた場合には、
覆工部の荷重を軽減することができ、山岳トンネルの裏
込め注入用グラウト材として好適に用いることができ
る。Further, when the addition amount of the water-swellable substance B is reduced, the specific gravity of the hydraulic mixture A becomes smaller. For example, when the mixture is used as grout for backfilling of tunnel lining,
The load on the lining part can be reduced, and it can be suitably used as a grout material for backfilling of mountain tunnels.
【００２４】なお、図１に示した実施例では、水硬性混
合物Ａに細骨材ｓおよび硬化遅延剤Ｚを添加する場合を
例示したが、本発明の実施は、これに限定されることは
なく、細骨材ｓないしは硬化遅延剤Ｚの添加は、必要に
応じて行えばよい。In the embodiment shown in FIG. 1, the case where the fine aggregate s and the setting retarder Z are added to the hydraulic mixture A is exemplified. However, the present invention is not limited to this. However, the addition of the fine aggregate s or the curing retardant Z may be performed as needed.
【００２５】また、図１に示した実施例では、スラリー
Ｓに水硬性セメントＣや硬化遅延剤Ｚおよび細骨材ｓを
個別に添加する場合を例示したが、本発明の実施は、こ
れに限定されることはなく、例えば、水硬性セメントＣ
と細骨材ｓとを水で混練してモルタルを作製し、これを
スラリーＳに添加することもできる。Further, in the embodiment shown in FIG. 1, the case where the hydraulic cement C, the hardening retardant Z and the fine aggregate s are individually added to the slurry S has been exemplified. Without limitation, for example, hydraulic cement C
And the fine aggregate s are kneaded with water to prepare a mortar, which can be added to the slurry S.
【００２６】この場合、硬化遅延剤Ｚは、予めモルタル
に添加してもよい。さらに、水膨潤性物質Ｂと水Ｗと事
前に混合・攪拌して、十分に膨潤・分散させたスラリー
Ｓは、モルタルに添加して混練することも可能である。In this case, the curing retarder Z may be added to the mortar in advance. Furthermore, the slurry S sufficiently swelled and dispersed by previously mixing and stirring the water swellable substance B and water W can be added to the mortar and kneaded.
【００２７】以下に示す表１は、本発明の製造方法の作
用効果を確認するために行った室内試験の結果を示して
いる。この室内試験では、水膨潤性物質Ｂとしてベント
ナイトを用い、水硬性セメントＣには、高炉セメントＢ
種を用いた。Table 1 below shows the results of laboratory tests performed to confirm the effects of the production method of the present invention. In this laboratory test, bentonite was used as the water-swellable substance B, and blast furnace cement B was used as the hydraulic cement C.
Seeds were used.
【００２８】本発明法では、水膨潤性物質Ｂと水Ｗと事
前に混合・攪拌し、水膨潤性物質Ｂを十分に膨潤・分散
させるための静置時間は、５分に設定した。水中落下に
よる水の濁りは、1リットルのメスシリンダに水を入
れ、上部から従来法（全材料一括投入方式）および本発
明法で得られた水硬性混合物を静かに投下して、下方に
落下させた際の、水の濁り具合を目視観察した結果であ
る。In the method of the present invention, the water-swellable substance B and water W are mixed and stirred in advance, and the standing time for sufficiently swelling and dispersing the water-swellable substance B is set to 5 minutes. The turbidity of water caused by falling in water is as follows. Put water into a 1-liter graduated cylinder, gently drop the hydraulic mixture obtained by the conventional method (all materials batch injection method) and the method of the present invention from the top, and drop downward. This is the result of visual observation of the degree of turbidity of the water when it was made to occur.
【００２９】[0029]
【表１】 なお、表１中に示したσ７およびσ２８は、水硬性混合
物が硬化した際の、材齢７日と２８日の一軸圧縮強度
（Ｎ／ｍｍ２）の測定結果である。[Table 1] Note that σ 7 and σ 28 shown in Table 1 are the measurement results of the uniaxial compressive strength (N / mm 2 ) of the material ages 7 and 28 when the hydraulic mixture was cured.
【００３０】表１に示した結果から、本発明法で製造さ
れる水硬性混合物Ａは、ベントナイトの添加量が、従来
法よりも大幅に少なく、ほぼ半分程度であるにもかかわ
らず、スランプフロー値が従来法よりも大きく、得られ
た水硬性混合物Ａの粘性が向上していることが判る。From the results shown in Table 1, it can be seen that the hydraulic mixture A produced by the method of the present invention has a slump flow despite the fact that the amount of bentonite added is substantially smaller than that of the conventional method and is about half. The value is larger than that of the conventional method, and it can be seen that the viscosity of the obtained hydraulic mixture A is improved.
【００３１】また、本発明法および従来法のいずれも水
中落下に対する濁りが発生しておらず、混合物の構成材
料の分離に関しては、ほぼ同じ性能が得られていること
が判る。In addition, neither the method of the present invention nor the conventional method produces turbidity due to falling in water, and it can be seen that almost the same performance is obtained with respect to the separation of the constituent materials of the mixture.
【００３２】さらに、以下に示した表２には、本発明の
製造方法で作製した水硬性混合物Ａの複数の配合比率例
と、水膨潤性物質Bをスラリーにしないで添加し、か
つ、硬化遅延剤Ｚを添加しない場合の水硬性混合物の配
合例とが示されている。なお、以下の配合比率では、硬
化遅延剤Ｚには、液状のソイルセメント用超遅延剤（ジ
オリター１０、日本製紙製、商品名）を用いた。Further, in Table 2 shown below, a plurality of mixing ratio examples of the hydraulic mixture A produced by the production method of the present invention, the water-swellable substance B were added without forming a slurry, and the mixture was cured. This shows a formulation example of the hydraulic mixture when the retarder Z is not added. In addition, in the following compounding ratio, a liquid super retarder for soil cement (Gio Litter 10, Nippon Paper Industries, trade name) was used as the curing retarder Z.
【００３３】[0033]
【表２】 各水硬性混合物のフロー値の経時変化を測定し、その測
定結果を表２に示している。表２に示したフロー値の測
定結果をみると、硬化遅延剤Ｚを添加すると、フロー値
が、かなりの時間、例えば、添加混合直後から２〜８時
間程度、硬化遅延材Ｚを添加しない場合と同程度に維持
されることがわかる。[Table 2] The change over time in the flow value of each hydraulic mixture was measured, and the measurement results are shown in Table 2. Looking at the measurement results of the flow values shown in Table 2, when the curing retarder Z is added, the flow value becomes a considerable time, for example, about 2 to 8 hours immediately after the addition and mixing, and when the curing retarder Z is not added. It can be seen that it is maintained at the same level as
【００３４】このことから、硬化遅延剤Ｚを添加する
と、水硬性混合物の流動性を長時間維持することがで
き、このようにして水硬性混合物Ａの凝結時間の調整が
可能になると、シールドトンネルのテールボイドの充填
用グラウト材や、山岳トンネルの裏込め注入用グラウト
材に適用した場合に、施工性を改善することができる。From the above, it can be seen that the addition of the setting retarder Z makes it possible to maintain the fluidity of the hydraulic mixture for a long period of time. Thus, when the setting time of the hydraulic mixture A can be adjusted, the shielding tunnel When applied to a grout material for filling the tail void and a grout material for backfilling of a mountain tunnel, workability can be improved.
【００３５】また、硬化遅延剤Ｚの添加量を増加させる
と、その減水効果と遅延効果により、表２に示したよう
に、流動性保持時間が増大する。従って、長時間の運
搬、グラウトの練り置き、施工時の注入中断による
不具合の減少が可能になり、例えば、水硬性セメントＣ
と細骨材ｓとを水で混練してモルタルを作製し、これを
スラリーＳに添加する場合には、モルタルを生コン工場
で製造したものを使用すると、グラウト製造の効率が高
くなり、トンネル工事において、坑内設備および坑外材
料ストックヤード面積が減少することにより、品質・施
工性・経済性が向上する。さらに、生コン工場の営業時
間内に製造したモルタルの夜間工事への使用や、長距離
トンネル中心部までの長距離運搬など、特殊な施工条件
に対応することが可能になる。When the amount of the curing retarder Z is increased, the fluidity retention time increases as shown in Table 2 due to the water reducing effect and the retarding effect. Therefore, it is possible to reduce troubles caused by long-time transportation, grouting and placing, and interruption of pouring during construction.
When mortar is prepared by kneading water and fine aggregate s with water, and the mortar is added to the slurry S, the use of mortar manufactured at a ready-mixed concrete plant increases the efficiency of grout production, thereby improving tunnel construction. , The quality, workability, and economic efficiency are improved by reducing the area of the underground facilities and the material yard outside the mine. Furthermore, it is possible to cope with special construction conditions, such as using mortar manufactured during the business hours of the ready-mixed concrete plant for nighttime construction and transporting the mortar to the center of a long-distance tunnel over long distances.
【００３６】[0036]
【発明の効果】以上、詳細に説明したように、本発明に
かかる水硬性混合物の製造方法によれば、粘性を高める
ことに必要な量の膨潤性物質を添加することで、経済的
な水硬性混合物が得られる。As described above in detail, according to the method for producing a hydraulic mixture according to the present invention, economical water can be obtained by adding an amount of a swelling substance necessary for increasing the viscosity. A hard mixture is obtained.
【図１】本発明にかかる水硬性混合物の製造方法の一実
施例を示す製造工程の説明図である。FIG. 1 is an explanatory view of a production process showing one embodiment of a method for producing a hydraulic mixture according to the present invention.
Ａ 水硬性混合物 Ｂ 水膨潤性物質 Ｃ 水硬性セメント Ｓ スラリー ｓ 細骨材 Ｗ 水 Ｚ 硬化遅延剤 １０ ミキサ A hydraulic mixture B water-swellable substance C hydraulic cement S slurry s fine aggregate W water Z setting retarder 10 mixer
フロントページの続き (72)発明者 新村 亮 東京都港区港南２丁目15番２号 株式会社 大林組本社内 Ｆターム(参考） 2D055 BA05 JA00 KA11 KB14 4G012 PA04 PA06 PE01 4G056 AA07 CB25 Continuation of the front page (72) Inventor Ryo Shinmura 2-15-2 Konan, Minato-ku, Tokyo F-term (reference) 2D055 BA05 JA00 KA11 KB14 4G012 PA04 PA06 PE01 4G056 AA07 CB25
Claims (4)
などの水膨潤性物質と、必要に応じて添加される骨材ま
たは硬化遅延剤とを含む水硬性混合物の製造方法におい
て、 前記水膨潤性物質と前記水と事前に混合・攪拌し、この
後に、所定時間静置して、前記水膨潤性物質を十分に膨
潤・分散させたスラリーを作製することを特徴とする水
硬性混合物の製造方法。1. A method for producing a hydraulic mixture comprising water, hydraulic cement, a water-swellable substance such as bentonite, and an aggregate or a hardening retarder added as necessary. A method for producing a hydraulic mixture, which comprises mixing and stirring a substance and the water in advance, and then leaving the mixture to stand for a predetermined time to prepare a slurry in which the water-swellable substance is sufficiently swelled and dispersed. .
記硬化遅延剤、または、前記水硬性セメントと前記硬化
遅延剤および前記骨材とを混練することを特徴とする請
求項１記載の水硬性混合物の製造方法。2. The hydraulic mixture according to claim 1, wherein the hydraulic cement and the setting retarder, or the hydraulic cement, the setting retarder, and the aggregate are kneaded with the slurry. Manufacturing method.
混練してモルタルを作製することを特徴とする請求項１
記載の水硬性混合物の製造方法。3. The mortar is prepared by previously kneading the hydraulic cement and the aggregate.
A method for producing a hydraulic mixture as described above.
ンネルの裏込め注入用グラウト材として用いることを特
徴とする水硬性混合物の製造方法。4. A method for producing a hydraulic mixture, wherein the hydraulic mixture according to claim 1 is used as a grouting material for backfilling a mountain tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001117018A JP2002307422A (en) | 2001-04-16 | 2001-04-16 | Method for manufacture of hydraulic mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001117018A JP2002307422A (en) | 2001-04-16 | 2001-04-16 | Method for manufacture of hydraulic mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002307422A true JP2002307422A (en) | 2002-10-23 |
Family
ID=18967656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001117018A Pending JP2002307422A (en) | 2001-04-16 | 2001-04-16 | Method for manufacture of hydraulic mixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002307422A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101218056B1 (en) | 2012-09-11 | 2013-01-03 | 신영구 | Apparatus for back filling material |
| KR101218054B1 (en) | 2012-09-11 | 2013-01-03 | 신영구 | Method for back filling material |
| JP7468168B2 (en) | 2020-06-09 | 2024-04-16 | 三菱ケミカルインフラテック株式会社 | Soil stabilization chemicals, manufacturing method thereof, and ground stabilization method |
-
2001
- 2001-04-16 JP JP2001117018A patent/JP2002307422A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101218056B1 (en) | 2012-09-11 | 2013-01-03 | 신영구 | Apparatus for back filling material |
| KR101218054B1 (en) | 2012-09-11 | 2013-01-03 | 신영구 | Method for back filling material |
| JP7468168B2 (en) | 2020-06-09 | 2024-04-16 | 三菱ケミカルインフラテック株式会社 | Soil stabilization chemicals, manufacturing method thereof, and ground stabilization method |
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