JPH0859314A - Material for consolidation - Google Patents
Material for consolidationInfo
- Publication number
- JPH0859314A JPH0859314A JP21077894A JP21077894A JPH0859314A JP H0859314 A JPH0859314 A JP H0859314A JP 21077894 A JP21077894 A JP 21077894A JP 21077894 A JP21077894 A JP 21077894A JP H0859314 A JPH0859314 A JP H0859314A
- Authority
- JP
- Japan
- Prior art keywords
- water glass
- fine particle
- molar ratio
- fly ash
- less
- 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
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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
(57)【要約】
【目的】 地盤中に注入される固結用材料であって、ゲ
ル化時間、特に、ゲル化時間の調節が容易であり、かつ
懸濁型グラウトとしては極めて浸透性に優れ、しかも長
期固結強度、すなわち耐久性にも優れた固結用材料を得
る。
【構成】 低モル比水ガラスと、微粒子スラグと、シリ
カフュームおよび微粒子フライアッシュの群から選択さ
れた一種または複数種とを含み、さらに必要に応じてア
ルミン酸ナトリウム等のアルカリ材を含んで構成され
る。さらに、水ガラスと、微粒子スラグと、シリカフュ
ームおよび微粒子フライアッシュの群から選択された一
種または複数種と、アルミン酸ナトリウム等のアルカリ
材とから構成され、この水ガラスとアルカリ材に含まれ
るＳｉＯ2 とＮａ2Ｏのモル比（ＳｉＯ2 ／Ｎａ2 Ｏ）
が２.8以下である。(57) [Summary] [Purpose] A solidifying material injected into the ground, which makes it easy to control gelation time, especially gelation time, and is extremely permeable as a suspension grout. A consolidating material having excellent long-term consolidating strength, that is, excellent durability is obtained. [Structure] A low molar ratio water glass, fine particle slag, and one or more kinds selected from the group of silica fume and fine particle fly ash, and further, if necessary, an alkali material such as sodium aluminate. It Further, it is composed of water glass, fine particle slag, one or more kinds selected from the group of silica fume and fine particle fly ash, and an alkali material such as sodium aluminate. SiO 2 contained in the water glass and the alkali material. And Na 2 O molar ratio (SiO 2 / Na 2 O)
Is less than 2.8.
Description
【０００１】[0001]
【産業上の利用分野】本発明は低モル比水ガラス、微粒
子スラグ、シリカフュームおよび／または微粒子フライ
アッシュを主成分とし、さらに必要に応じてアルカリ材
を含有した、主として地盤注入用薬材として利用される
固結用材料に係り、詳細には、ゲル化時間、特に長いゲ
ル化時間の調節が容易であり、かつ懸濁型グラウトとし
ては極めて浸透性に優れ、しかも長期固結強度、すなわ
ち耐久性にも優れた固結用材料に関する。FIELD OF THE INVENTION The present invention is mainly used as a ground injection chemical material containing low molar ratio water glass, fine particle slag, silica fume and / or fine particle fly ash as a main component, and further containing an alkali material if necessary. In particular, it is easy to control the gelling time, especially long gelling time, and has excellent permeability as a suspension type grout, and long-term consolidation strength, that is, durability. The present invention relates to a caking material having excellent properties.
【０００２】[0002]
【従来の技術】地盤注入用薬液として従来、水ガラスに
セメントのような懸濁性反応剤を加えてなる懸濁型グラ
ウト、あるいは水ガラスに有機反応剤や無機塩のような
溶液性反応剤を加えてなる溶液型の水ガラス系グラウト
が知られている。2. Description of the Related Art As a ground injection chemical, a suspension type grout which is conventionally made by adding a suspending reactive agent such as cement to water glass, or a solution reactive agent such as an organic reactive agent or an inorganic salt is added to water glass. A solution-type water glass-based grout obtained by adding the above is known.
【０００３】[0003]
【発明が解決しようとする問題点】このうち、溶液型の
水ガラス系グラウトは浸透性に優れているという利点を
もっているが、強度が低く、特にゲル化時間を長く調整
すると一層低強度となる。これに対して、セメントを用
いる懸濁型グラウトは高い強度を得ることができるが、
ゲル化時間を長く調整しても浸透性が悪く、かつ、均一
の固結体が得られにくいといった問題がある。Among these, the solution type water glass grout has the advantage that it has excellent permeability, but its strength is low, and especially when the gelation time is adjusted to be longer, the strength becomes lower. . On the other hand, suspension type grout using cement can obtain high strength,
Even if the gelation time is adjusted to be long, the penetrability is poor and it is difficult to obtain a uniform solidified body.
【０００４】そこで、近年、水ガラスと、ポゾラン類や
石灰類等とからなる系、水ガラスと微粒子状の石灰や微
粒子状のスラグ等とからなる系を用いることにより、上
記欠点を改善しようとする試みがなされている。Therefore, in recent years, it has been attempted to remedy the above-mentioned drawbacks by using a system composed of water glass and pozzolans, limes and the like, and a system composed of water glass and particulate lime and particulate slag. Attempts have been made to do so.
【０００５】本発明は上述の技術をさらに発展させ、溶
液型水ガラス系グラウトのもつ優れた浸透性の利点と、
懸濁型グラウトのもつ高強度という利点の両者を兼ね備
えた固結用材料を得るものである。The present invention is a further development of the above-mentioned technique, which has the advantage of excellent permeability of a solution-type water glass-based grout,
It is intended to obtain a consolidation material which has both of the advantages of the high strength of the suspension type grout.
【０００６】すなわち、本発明の目的は懸濁型グラウト
でありながら、溶液型グラウトにほぼ比適する浸透性を
もち、強度としては懸濁型グラウト特有の高強度を有
し、特に長期固結強度に優れた固結用材料を提供するこ
とにある。That is, although the object of the present invention is a suspension type grout, it has permeability which is almost suitable for a solution type grout, and has a high strength peculiar to a suspension type grout, and particularly, a long-term consolidation strength. To provide an excellent caking material.
【０００７】[0007]
【問題点を解決するための手段】前述の目的を達成する
ため、本発明によれば、低モル比水ガラスと、微粒子ス
ラグと、シリカフュームおよび微粒子フライアッシュの
群から選択された一種または複数種とを含み、さらに必
要に応じてアルミン酸ナトリウム等のアルカリ材を含ん
でなることを特徴とする。In order to achieve the above object, according to the present invention, one or more kinds selected from the group consisting of low molar ratio water glass, fine particle slag, silica fume and fine particle fly ash. And an alkali material such as sodium aluminate, if necessary.
【０００８】さらに、上述の目的を達成するため、本発
明によれば、水ガラスと、微粒子スラグと、シリカフュ
ームおよび微粒子フライアッシュの群から選択された一
種または複数種と、アルミン酸ナトリウム等のアルカリ
材とからなり、この水ガラスとアルカリ材に含まれるＳ
ｉＯ2 とＮａ2 Ｏのモル比（ＳｉＯ2 ／Ｎａ2 Ｏ）が
２.8以下であることを特徴とする。Further, in order to achieve the above object, according to the present invention, water glass, fine particle slag, one or more kinds selected from the group of silica fume and fine particle fly ash, and an alkali such as sodium aluminate. And S contained in this water glass and alkaline material.
It is characterized in that the molar ratio of iO 2 to Na 2 O (SiO 2 / Na 2 O) is 2.8 or less.
【０００９】[0009]
【発明の具体的説明】以下、本発明を具体的に詳述す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention is described in detail below.
【００１０】本発明に用いられる低モル比水ガラスはモ
ル比が２.8以下、好ましくは２.5以下である。なお、水
ガラスと、微粒子スラグとシリカフュームおよび微粒子
フライアッシュの群から選択された一種または複数種
と、アルカリ材とからなる場合には、水ガラスとアルカ
リ材に含まれるＳｉＯ2 とＮａ2 Ｏのモル比( ＳｉＯ2
／Ｎａ2 Ｏ) が２.8以下、好ましくは２.5以下である。The low molar ratio water glass used in the present invention has a molar ratio of 2.8 or less, preferably 2.5 or less. In the case where the water glass, one or more kinds selected from the group of fine particle slag, silica fume and fine particle fly ash, and an alkali material are used, SiO 2 and Na 2 O contained in the water glass and the alkali material are included. Molar ratio (SiO 2
/ Na 2 O) is 2.8 or less, preferably 2.5 or less.
【００１１】また、本発明に用いられる微粒子スラグお
よび微粒子フライアッシュはそれぞれ、平均粒径が約10
μｍ以下、比表面積が約5000cm2/ｇ以上である。The fine particle slag and fine particle fly ash used in the present invention each have an average particle size of about 10
μm or less and specific surface area of about 5000 cm 2 / g or more.
【００１２】本発明に用いられる前述フライアッシュは
煙道ガス中の細かい灰の粒子であって、微粒子スラグと
同様に平均粒子径が約10μｍ以下、比表面積が約5000cm
2/ｇ以上のものがよい。また、前述シリカフュームはシ
リコンメタルやフエロシリコン等のケイ素合金を電気炉
で製造する際に発生する排ガス中に浮遊して生じる副産
物で、平均粒子径は約０.1μｍ、比表面積が20〜23m2/g
であって、粒子としては極めて小さい。The above-mentioned fly ash used in the present invention is fine ash particles in flue gas, and has an average particle size of about 10 μm or less and a specific surface area of about 5000 cm like fine particle slag.
2 / g or more is preferable. The silica fume is a by-product produced by floating in the exhaust gas generated when manufacturing silicon alloys such as silicon metal and ferrosilicon in an electric furnace, and has an average particle size of about 0.1 μm and a specific surface area of 20-23 m. 2 / g
However, the particles are extremely small.
【００１３】アルカリ材としてはアルミン酸ナトリウム
が好ましいが、この他、炭酸水素ナトリウム等の一般の
アルカリ材を用いられる。アルカリ材としての石灰類は
ゲル化時間を速め、強度の向上に効果があるが、粘性の
上昇が著しく、浸透性の向上を図るには好ましくない。As the alkali material, sodium aluminate is preferable, but in addition to this, general alkali materials such as sodium hydrogen carbonate are used. Lime as an alkaline material accelerates the gelation time and is effective in improving the strength, but the viscosity is remarkably increased, and it is not preferable for improving the permeability.
【００１４】これら成分の混合方法は長いゲル化時間を
調整する場合は、如何なる方法でもよい。ゲル化時間の
短い場合はスラグ、シリカフューム、フライアッシュの
微粒子状のシリカ分の懸濁液と水ガラス、アルミン酸ナ
トリウム等からなるアルカリ材溶液とを別途に調整して
ゲル化時間によって２ショットまたは１.5ショット方式
で混合する。Any method may be used as a mixing method of these components when a long gelation time is adjusted. When the gelation time is short, a suspension of fine silica particles such as slag, silica fume, and fly ash and an alkaline material solution such as water glass and sodium aluminate are separately prepared, and 2 shots or Mix by 1.5 shot method.
【００１５】[0015]
【作用】シリカフューム、フライアッシュを水ガラス水
溶液と混合すると比較的容易に均一な粘性状混合物とな
り、ある程度の期間懸濁状態を保持する。これはシリカ
フューム、フライアッシュの粒子のまわりに水ガラスの
分子が吸着して親水性のコロイド性懸濁液となるためと
推定される。When silica fume and fly ash are mixed with a water glass aqueous solution, a homogeneous viscous mixture is relatively easily formed, and the suspension state is maintained for a certain period of time. It is presumed that this is because water glass molecules are adsorbed around the particles of silica fume and fly ash to form a hydrophilic colloidal suspension.
【００１６】スラグは水ガラスのアルカリによる刺激作
用でスラグ本来の潜在水硬性を発揮するようになる。こ
れらの作用は何れも微粒子化することにより大幅に増大
するとともに、低粘性を維持しながら徐々に固結するた
め、スラグの大きなシリカの結合の間隙にフライアッシ
ュやシリカフュームの中程度の大きさのシリカが充填さ
れ、さらに細かい間隙に水ガラスの小さなシリカが密に
填充して全体として密実な固結を形成するものと思われ
る。The slag comes to exhibit the inherent latent hydraulicity of the slag by the stimulating action of the alkali of the water glass. Both of these effects are greatly increased by atomizing, and gradually solidify while maintaining low viscosity, so fly ash or silica fume of medium size is formed in the gap of silica bond of large slag. It is considered that silica is filled, and small pores of water glass are densely filled in the finer gaps to form a solid solidification as a whole.
【００１７】アルミン酸ナトリウム、その他のアルカリ
材は衆知のように水ガラスの硬化に直接影響するため、
ゲル化時間の調整をはかることができる。特に、アルミ
ン酸ナトリウムはアルミナにより強度増強にも効果があ
るようである。Since sodium aluminate and other alkaline materials have a direct influence on the hardening of water glass as is well known,
The gelation time can be adjusted. In particular, sodium aluminate seems to have an effect of strengthening strength by alumina.
【００１８】[0018]
【実施例】以下、本発明を実施例によって具体的に説明
するが、本発明はそれらに限定されるものではない。EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited thereto.
【００１９】１．使用材料 （１）スラグ ＳｉＯ2 ：３３.0２％、ＣａＯ：４１.9０％、Ａｌ2 Ｏ
3 ：１２.8３％、ＭｇＯ：８.6１％、Ｆｅ2 Ｏ3 ：０.3
７％の成分組成からなる水砕スラグを粉砕して平均粒子
径８.0μｍ、比表面積8300cm2/ｇとした微粒子スラグを
使用した。1. Materials used (1) Slag SiO 2 : 33.02%, CaO: 41.90%, Al 2 O
3: 12.83%, MgO: 8.61 %, Fe 2 O 3: 0.3
Granulated slag having a composition of 7% was pulverized to use fine particle slag having an average particle diameter of 8.0 μm and a specific surface area of 8300 cm 2 / g.
【００２０】（２）シリカフューム ＳｉＯ2 ：９０.4％、Ａｌ2 Ｏ3 ：１.1％、Ｆｅ
2 Ｏ3 ：１.3％、Ｃ：１.4％の成分組成からなり、平均
粒子径０.1１μｍ、比表面積21m3/gのものを使用した。(2) Silica fume SiO 2 : 90.4%, Al 2 O 3 : 1.1%, Fe
2 O 3: 1.3%, C : made 1.4% chemical composition, was used an average particle diameter of 0.11 .mu.m, those having a specific surface area of 21m 3 / g.
【００２１】（３）フライアッシュ 同一組成で粉砕度を異にした次の表１に示す２種類のも
のを使用した。(3) Fly ash Two kinds of fly ash having the same composition but different pulverization degrees shown in Table 1 below were used.
【００２２】[0022]
【表１】 [Table 1]
【００２３】（４）水ガラス モル比の異なる表２に示す組成の３種類の水ガラスを使
用した。(4) Water glass Three types of water glass having different compositions shown in Table 2 were used.
【００２４】[0024]
【表２】 [Table 2]
【００２５】（５）アルカリ材 アルカリ材としては各種のものがあるが、本発明におい
て効果の大きいアルミン酸ナトリウムと、アルカリ材の
代表的なものとして炭酸水素ナトリウムと消石灰をとり
あげた。(5) Alkali Material There are various kinds of alkali materials, and sodium aluminate, which has a great effect in the present invention, and sodium hydrogen carbonate and slaked lime are mentioned as typical alkali materials.
【００２６】（ア）アルミン酸ナトリウム液 次の成分組成からなるアルミン酸ナトリウム液を使用し
た。 比重：１.3３、 Ｎａ2 Ｏ：２２.4７％、 Ａｌ
2 Ｏ3 ：１.5９％、モル比：２３.2５(A) Sodium aluminate solution A sodium aluminate solution having the following composition was used. Specific gravity: 1.33, Na 2 O: 22.47%, Al
2 O 3 : 1.59%, molar ratio: 23.25
【００２７】（イ）炭酸水素ナトリウム 工業用の炭酸水素ナトリウム（ＮａＨＣＯ3 ）を使用し
た。(B) Sodium hydrogen carbonate Industrial sodium hydrogen carbonate (NaHCO 3 ) was used.
【００２８】（ウ）消石灰 工業用の消石灰（Ｃａ（ＯＨ)2) を使用した。(C) Slaked lime Industrial slaked lime (Ca (OH) 2 ) was used.
【００２９】２．配合と物性 各種の配合とそのゲル化時間、粘性、一軸圧縮強度を表
３に示す。2. Composition and Physical Properties Table 3 shows various compositions, gelation time, viscosity, and uniaxial compressive strength.
【００３０】一軸圧縮強度はモールド中に標準砂と配合
液を混合しながら填充して得たサンドゲルの供試体の結
果を示し、７日強度はモールド中に７日間養生したも
の、49日強度はモールド中に７日間養生した後42日間、
１年強度はモールド中に７日間養生した後、約１年間そ
れぞれ水中養生したものの強度を示す。The uniaxial compressive strength is the result of the sand gel specimen obtained by filling the standard sand and the compounding liquid in the mold while mixing, and the 7-day strength is the one aged in the mold for 7 days, and the 49-day strength is 42 days after curing for 7 days in the mold,
The 1-year strength indicates the strength of one that has been cured in water for about 1 year after being cured in a mold for 7 days.
【００３１】[0031]
【表３】 [Table 3]
【００３２】表３において、実施No.2（水ガラスとアル
ミン酸ナトリウムからくるＳｉＯ2／Ｎａ2 Ｏのモル比
は２.5６となる）はゲル化時間は速く、したがって、粘
性の上昇も速く、そのわりには低強度である。実施No.8
（シリカフューム、フライアッシュ不使用）は粘性は高
めで初期強度は比較的高いが、そのわりには長期強度の
上昇は少ない。実施No.9（シリカフューム、フライアッ
シュ不使用で消石灰使用）は初期強度は高いが、長期強
度の上昇は少なく、その上ゲル化時間は短く、粘性の上
昇が著しい。In Table 3, Example No. 2 (having a SiO 2 / Na 2 O molar ratio of water glass and sodium aluminate of 2.56) has a fast gelation time and, therefore, a rapid increase in viscosity. However, the strength is low. Implementation No.8
(Silica fume and fly ash not used) has high viscosity and relatively high initial strength, but the long-term strength does not increase. Run No. 9 (silica fume, without fly ash but with slaked lime) has high initial strength, but little increase in long-term strength, short gelation time, and remarkable increase in viscosity.
【００３３】これらに比べて、その他の実施No. では初
期強度は実施No.8、No.9に比べて若干劣るものの長期強
度は優れ、特に実施No.4、６、10ではその傾向が著し
く、また粘性は明らかに低い。実施No.7（アルカリ材不
使用）にアルカリ材（アルミン酸ナトリウム）を加えた
実施No.6ではゲル化時間を速く、強度的にも上昇気味で
ある。実施No.1はスラグ量が多く、高強度でゲル化時間
が速く、短時間ゲル化のグラウトとして優れている。Compared to these, in other execution Nos., Although the initial strength is slightly inferior to the execution Nos. 8 and 9, the long-term strength is excellent, and particularly in the executions Nos. 4, 6 and 10, the tendency is remarkable. , And the viscosity is obviously low. In Example No. 6 in which an alkaline material (sodium aluminate) was added to Example No. 7 (no alkali material used), the gelation time was fast, and the strength tended to increase. Example No. 1 has a large amount of slag, high strength, fast gelation time, and is excellent as a grout for short-time gelation.
【００３４】本発明は上述のように、低モル比水ガラス
（好ましくはモル比２.8以下、さらに好ましくは２.5以
下) 、微粒子スラグ（好ましくは平均粒子径が約10μｍ
以下で、比表面積が約5000cm2/ｇ以上) 、シリカフュー
ム（超微粒子状）、フライアッシュ（好ましくは平均粒
子径が約10μｍ以下で、比表面積が約5000cm2/ｇ以上)
、必要に応じて、アルカリ材（好ましくはアルミン酸
ナトリウム）を加えて水ガラスとアルカリ材に含まれる
ＳｉＯ2 とＮａ2 Ｏのモル比の比率を２.8以下、好まし
くは２.5以下にすることより構成される。このような構
成からなる本発明では一般に低粘性で優れた浸透され
る。このような、ゲル化時間は短時間のものから長時間
にわたり容易に調整でき、初期強度はそれ程でもない
が、長期強度すなわち耐久性に著しく優れていることが
うかがえる。As described above, the present invention has a low molar ratio water glass (preferably a molar ratio of 2.8 or less, more preferably 2.5 or less), fine particle slag (preferably an average particle size of about 10 μm).
Below, a specific surface area of about 5000 cm 2 / g or more), silica fume (ultrafine particles), fly ash (preferably an average particle size of about 10 μm or less, a specific surface area of about 5000 cm 2 / g or more)
If necessary, an alkaline material (preferably sodium aluminate) is added to reduce the molar ratio of SiO 2 and Na 2 O contained in the water glass and the alkaline material to 2.8 or less, preferably 2.5 or less. It consists of In the present invention having such a structure, it generally has low viscosity and is excellently permeated. It can be seen that such gelling time can be easily adjusted from short time to long time and the initial strength is not so high, but the long-term strength, that is, the durability is remarkably excellent.
【００３５】３．浸透試験 図１の注入装置を用いて本発明にかかる固結用材料の浸
透試験を行った。図１において、１はコンプレッサー、
２、３は圧力計である。コンプレッサー１に連結された
攪拌器４を備えた水槽５の中に本発明にかかる固結用材
料６を充填する。７はアクリルモールドであって、この
中に砂８が充填される。水槽５中に充填された固結用材
料６はコンプレッサー１の作動によってアクリルモール
ド７中の砂８に導入される。3. Penetration Test A penetration test was conducted on the caking material according to the present invention using the injection device shown in FIG. In FIG. 1, 1 is a compressor,
2 and 3 are pressure gauges. A caking material 6 according to the present invention is filled in a water tank 5 equipped with an agitator 4 connected to the compressor 1. 7 is an acrylic mold in which sand 8 is filled. The solidifying material 6 filled in the water tank 5 is introduced into the sand 8 in the acrylic mold 7 by the operation of the compressor 1.
【００３６】ここで、固結用材料６は砂８に浸透され、
やがて透過された固結用材料６はメスシリンダー11に採
取され、浸透状況が測定される。９、10は金網である。
アクリルモールド７に充填される砂８を表４に示し、か
つ浸透試験の測定結果を表５に示す。Here, the consolidation material 6 is infiltrated into the sand 8,
The consolidating material 6 that has permeated is collected in the graduated cylinder 11 and the permeation state is measured. 9 and 10 are wire nets.
The sand 8 filled in the acrylic mold 7 is shown in Table 4, and the measurement results of the penetration test are shown in Table 5.
【００３７】[0037]
【表４】 [Table 4]
【００３８】[0038]
【表５】 [Table 5]
【００３９】〇：モールドから排出してきた固結用材料
は正常にゲル化し、内部の固結状況は均一に固結した。 △：モールドから排出してきた固結用材料は正常にゲル
化したが、内部の固結は上部において不均一な箇所がみ
られ、全般に下部は固いが上部の固結は弱い。 ×：モールドからの固結用材料の排出は目づまりを起こ
して不規則かつ不充分で内部の固結は不均一で弱い。◯: The solidifying material discharged from the mold gelled normally, and the internal solidified state was uniformly solidified. Δ: The caking material discharged from the mold gelled normally, but the caking inside was uneven in the upper part, and generally the lower part was hard but the upper part was weak. X: The discharge of the caking material from the mold is clogged and irregular and insufficient, and the caking inside is uneven and weak.
【００４０】表５の低モル比水ガラス−微粒子スラグ−
シリカフューム−アルミン酸ナトリウムからなる実験N
o.1〜４、および低モル比水ガラス−微粒子スラグ−微
粒子フライアッシュ−アルミン酸ナトリウムからなる実
験No.5〜８では浸透性に優れ、シリカフュームやフライ
アッシュを含まない低モル比水ガラス−スラグ−アルミ
ン酸ナトリウムからなる実験No.9〜12では若干劣り、消
石灰を使用している実験No.13〜16ではゲル化時間が短
いこともあるが、浸透性は上記実験No.1〜12に比べて非
常に劣っている。Low molar ratio water glass of Table 5 -fine particle slag-
Experiment N consisting of silica fume-sodium aluminate
o.1 to 4 and low molar ratio water glass-fine particles slag-fine particle fly ash-experiment No. 5 to 8 consisting of sodium aluminate, excellent permeability, low molar ratio water glass containing no silica fume or fly ash- Slag-Experiment No. 9 to 12 consisting of sodium aluminate is slightly inferior, in Experiments No. 13 to 16 using slaked lime sometimes gelation time is short, but the permeability is the above Experiment Nos. 1 to 12 Very inferior to.
【００４１】[0041]
【発明の効果】低モル比水ガラス（モル比が２.8以下、
さらに好ましくは２.5以下) と微粒子スラグと微粒子状
フライアッシュおよび／またはシリカフュームと必要に
よりさらにアルカリ材を加えて水ガラスとアルカリ材に
含まれるＳｉＯ2 とＮａ2 Ｏからくるモル比を２.8以
下、好ましくは２.5以下とした地盤注入用薬材として利
用される固結用材料は次のような顕著な効果がある。EFFECT OF THE INVENTION Low molar ratio water glass (molar ratio of 2.8 or less
(More preferably 2.5 or less), fine particle slag, fine particle fly ash, and / or silica fume, and if necessary, an alkaline material is further added, and the molar ratio of SiO 2 and Na 2 O contained in water glass and alkaline material is 2. The consolidating material used as a ground injection chemical material of 8 or less, preferably 2.5 or less has the following remarkable effects.
【００４２】１．短時間から長時間にわたるゲル化時間
の調整が容易である。 ２．懸濁型グラウトとしては極めて低粘性で、懸濁型グ
ラウトではみられない優れた浸透性を示す。 ３．長期強度が高く、優れた耐久性が期待できる。1. It is easy to adjust the gelation time from short time to long time. 2. It has a very low viscosity as a suspension grout, and exhibits excellent permeability not seen in suspension grout. 3. High long-term strength and excellent durability can be expected.
【００４３】[0043]
【図１】固結用材料を砂中へ注入する装置の略図であ
る。FIG. 1 is a schematic diagram of an apparatus for pouring the consolidation material into sand.
１ コンプレッサー ４ 攪拌器 ５ 水槽 ６ 固結用材料 ７ アクリルモールド ８ 砂 1 Compressor 4 Stirrer 5 Water Tank 6 Consolidation Material 7 Acrylic Mold 8 Sand
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｋ 17/06 Ｐ 17/08 Ｐ 17/12 Ｐ Ｅ０２Ｄ 3/12 // Ｃ０４Ｂ 111:70 Ｃ０９Ｋ 103:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C09K 17/06 P 17/08 P 17/12 P E02D 3/12 // C04B 111: 70 C09K 103 : 00
Claims (8)
シリカフュームおよび微粒子フライアッシュの群から選
ばれた一種または複数種とからなる固結用材料。1. A low molar ratio water glass, fine particle slag, and
A consolidating material comprising one or more selected from the group of silica fume and fine fly ash.
を添加してなる請求項１の固結用材料。2. The consolidating material according to claim 1, further comprising an alkaline material added to the consolidating material according to claim 1.
である請求項１の固結用材料。3. The consolidation material according to claim 1, wherein the low molar ratio water glass has a molar ratio of 2.8 or less.
である請求項１の固結材料。4. The consolidated material according to claim 1, wherein the low molar ratio water glass has a molar ratio of 2.5 or less.
ッシュがそれぞれ平均粒径約10μｍ以下、比表面積約50
00cm2/ｇ以上である請求項１の固結用材料。5. The fine particle slag and the fine particle fly ash each have an average particle size of about 10 μm or less and a specific surface area of about 50.
The consolidation material according to claim 1, which has a density of at least 00 cm 2 / g.
である請求項２の固結用材料。6. The consolidation material according to claim 2, wherein the alkaline material is sodium aluminate.
ームおよび微粒子フライアッシュの群から選択された一
種または複数種と、アルカリ材とからなり、前記水ガラ
スとアルカリ材に含まれるＳｉＯ2 とＮａ2 Ｏのモル比
（ＳｉＯ2 ／Ｎａ2 Ｏ）が２.8以下である固結用材料。7. Water glass, one or more kinds selected from the group of fine particle slag, silica fume and fine particle fly ash, and an alkali material, and SiO 2 and Na 2 O contained in said water glass and alkaline material. The consolidation material having a molar ratio of (SiO 2 / Na 2 O) of 2.8 or less.
（ＳｉＯ2 ／Ｎａ2Ｏ）が２.5以下である請求項７の固
結材料。8. The consolidated material according to claim 7, wherein the molar ratio of SiO 2 and Na 2 O (SiO 2 / Na 2 O) in claim 7 is 2.5 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21077894A JP2923838B2 (en) | 1994-08-12 | 1994-08-12 | Consolidation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21077894A JP2923838B2 (en) | 1994-08-12 | 1994-08-12 | Consolidation material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0859314A true JPH0859314A (en) | 1996-03-05 |
| JP2923838B2 JP2923838B2 (en) | 1999-07-26 |
Family
ID=16594991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21077894A Expired - Fee Related JP2923838B2 (en) | 1994-08-12 | 1994-08-12 | Consolidation material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2923838B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09263759A (en) * | 1996-03-28 | 1997-10-07 | Kyokado Eng Co Ltd | Ground consolidation grout |
| JPH09316449A (en) * | 1996-06-03 | 1997-12-09 | Kyokado Eng Co Ltd | Ground injection chemical |
| JP2002088752A (en) * | 2000-09-19 | 2002-03-27 | Kyokado Eng Co Ltd | Ground consolidation process |
| JP2014144902A (en) * | 2013-01-30 | 2014-08-14 | Doboku Chishitsu Kk | High density concrete and method for producing the same |
| JP2020019681A (en) * | 2018-08-01 | 2020-02-06 | 三菱マテリアル株式会社 | Geopolymer consolidated material, and geopolymer consolidation method |
| CN112250411A (en) * | 2020-10-16 | 2021-01-22 | 中国地质大学（北京） | Self-degradable temporary plugging cement and preparation method thereof |
| JP2022095334A (en) * | 2020-12-16 | 2022-06-28 | 国立研究開発法人日本原子力研究開発機構 | Production method of solidified body |
| JP2026016895A (en) * | 2024-07-23 | 2026-02-04 | 株式会社丸敏陶料所 | Geopolymer composition |
-
1994
- 1994-08-12 JP JP21077894A patent/JP2923838B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09263759A (en) * | 1996-03-28 | 1997-10-07 | Kyokado Eng Co Ltd | Ground consolidation grout |
| JPH09316449A (en) * | 1996-06-03 | 1997-12-09 | Kyokado Eng Co Ltd | Ground injection chemical |
| JP2002088752A (en) * | 2000-09-19 | 2002-03-27 | Kyokado Eng Co Ltd | Ground consolidation process |
| JP2014144902A (en) * | 2013-01-30 | 2014-08-14 | Doboku Chishitsu Kk | High density concrete and method for producing the same |
| JP2020019681A (en) * | 2018-08-01 | 2020-02-06 | 三菱マテリアル株式会社 | Geopolymer consolidated material, and geopolymer consolidation method |
| CN112250411A (en) * | 2020-10-16 | 2021-01-22 | 中国地质大学（北京） | Self-degradable temporary plugging cement and preparation method thereof |
| JP2022095334A (en) * | 2020-12-16 | 2022-06-28 | 国立研究開発法人日本原子力研究開発機構 | Production method of solidified body |
| JP2026016895A (en) * | 2024-07-23 | 2026-02-04 | 株式会社丸敏陶料所 | Geopolymer composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2923838B2 (en) | 1999-07-26 |
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