JP2923838B2 - Consolidation material - Google Patents
Consolidation materialInfo
- Publication number
- JP2923838B2 JP2923838B2 JP21077894A JP21077894A JP2923838B2 JP 2923838 B2 JP2923838 B2 JP 2923838B2 JP 21077894 A JP21077894 A JP 21077894A JP 21077894 A JP21077894 A JP 21077894A JP 2923838 B2 JP2923838 B2 JP 2923838B2
- Authority
- JP
- Japan
- Prior art keywords
- fine
- water glass
- less
- slag
- fly ash
- 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 - Fee Related
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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used as a soil injection material containing a low molar ratio water glass, fine particle slag, silica fume and / or fine particle fly ash as a main component and, if necessary, an alkali material. More specifically, it is easy to adjust the gel time, particularly the long gel time, and has excellent permeability as a suspension type grout. The present invention relates to a consolidation 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 Conventionally, a suspended grout obtained by adding a suspending reactant such as cement to water glass or a solution reactant such as an organic reactant or an inorganic salt to water glass has conventionally been used as a liquid for ground injection. There is known a solution-type water glass grout obtained by adding water.
【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 them, the solution type water glass grout has the advantage of being excellent in permeability, but the strength is low, and the strength is further lowered particularly when the gelation time is adjusted to be long. . In contrast, suspension grout using cement can obtain high strength,
Even if the gelation time is adjusted to be long, there is a problem that the permeability is poor and it is difficult to obtain a uniform compact.
【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 improve the above drawbacks by using a system composed of water glass and pozzolans and limes, 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-described technology, and has the advantages of the excellent permeability of the solution type water glass grout.
An object of the present invention is to obtain a consolidation material having both the advantages of the high strength of the suspended 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, the object of the present invention is to provide a suspension type grout, which has a permeability substantially equivalent to that of a solution type grout, and has a high strength unique to a suspension type grout. An object of the present invention is to provide an excellent consolidation 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。According to the present invention, one or more selected from the group consisting of low-molar-ratio water glass, fine-particle slag, silica fume and fine-particle fly ash are provided. And, if necessary, an alkaline material such as sodium aluminate.
【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-mentioned object, according to the present invention, water glass, fine particle slag, one or more selected from the group consisting of silica fume and fine particle fly ash, and an alkali such as sodium aluminate And S contained in the water glass and the alkali material
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 Hereinafter, the present invention will be described in detail.
【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 of 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, water glass and SiO 2 and Na 2 O contained in the alkali material are used. 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 the fine fly ash used in the present invention each have an average particle diameter of about 10%.
μm or less, and the specific surface area is 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 fly ash used in the present invention is fine ash particles in the flue gas, and has an average particle diameter of about 10 μm or less and a specific surface area of about 5000 cm, similarly to fine slag.
It is better to use 2 / g or more. The silica fume is a by-product generated by floating in an exhaust gas generated when manufacturing a silicon alloy such as silicon metal or ferro silicon in an electric furnace, and has an average particle diameter of about 0.1 μm and a specific surface area of 20 to 23 m. 2 / g
And 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, and other common alkali materials such as sodium hydrogen carbonate are used. Lime as an alkali material has the effect of shortening the gel time and improving the strength, but has a significant increase in viscosity, and 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。The method of mixing these components may be any method for adjusting a long gelation time. When the gelation time is short, a suspension of fine silica particles of slag, silica fume, fly ash and an alkali material solution composed of water glass, sodium aluminate, etc. are separately adjusted and two 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 a silica fume or fly ash is mixed with a water glass aqueous solution, a uniform viscous mixture is relatively easily formed, and a suspension state is maintained for a certain period of time. This is presumably because water glass molecules are adsorbed around silica fume and fly ash particles 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 exhibits the inherent potential hydraulic property of the slag due to the stimulating action of the alkali of the water glass. All of these effects are greatly increased by the reduction of the particle size, and the solidification is gradually performed while maintaining the low viscosity. Therefore, medium-sized fly ash or silica fume It is believed that the silica is filled, and the small gaps of water glass are densely filled with silica to form a solid compact 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 alkali materials directly affect the hardening of water glass, as is well known,
The gelation time can be adjusted. In particular, it seems that sodium aluminate is also effective in increasing the 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 Hereinafter, the present invention will be described specifically 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 component composition of 7% was pulverized, and fine particle slag having an average particle size of 8.0 μm and a specific surface area of 8300 cm 2 / g was used.
【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
A composition having a component composition of 2 O 3 : 1.3% and C: 1.4%, having an average particle size of 0.11 μm and a specific surface area of 21 m 3 / g was used.
【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 types of fly ash having the same composition and different pulverization degrees as shown in the following Table 1 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 the composition shown in Table 2 having different molar ratios 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 types of alkali materials. Among them, sodium aluminate, which is effective in the present invention, and sodium hydrogen carbonate and slaked lime as typical examples of the alkali material are described.
【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。(A) 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. Formulation and physical properties Table 3 shows various formulations and their gel 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 shows the results of a sample of a sand gel obtained by filling a standard sand and a compounding solution in a mold while mixing the mixture. The 7-day strength was obtained by curing in a mold for 7 days, and the 49-day strength was obtained. 42 days after curing for 7 days in the mold
The one-year strength indicates the strength of each of those cured in water for about one 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, Run No. 2 (the molar ratio of SiO 2 / Na 2 O coming from water glass and sodium aluminate is 2.56) has a faster gelation time and therefore a faster rise in viscosity. Instead, it has low strength. Implementation No.8
(Silica fume, no fly ash) has a high viscosity and a relatively high initial strength, but has a small increase in long-term strength. Run No. 9 (silica fume, fly ash not used and slaked lime used) has a high initial strength, but has a small increase in long-term strength, and further has a short gelation time and a marked 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。On the other hand, the initial strengths of the other execution Nos. Are slightly inferior to those of the execution Nos. 8 and 9, but the long-term strengths are excellent, and the tendency is particularly remarkable in the execution Nos. 4, 6, and 10. And the viscosity is clearly low. In Example No. 6 in which an alkali material (sodium aluminate) was added to Example No. 7 (without use of an alkali material), the gelation time was fast, and the strength was on the rise. Run No. 1 has a large amount of slag, high strength, fast gelation time, and is excellent as a short-time gelling grout.
【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。According to the present invention, as described above, low-molar-ratio water glass (preferably 2.8 or less, more preferably 2.5 or less), fine-particle slag (preferably having an average particle diameter of about 10 μm
In the following, the specific surface area is about 5000 cm 2 / g or more), silica fume (ultrafine particles), fly ash (preferably the average particle diameter is about 10 μm or less, and the specific surface area is about 5000 cm 2 / g or more)
If necessary, an alkali material (preferably sodium aluminate) is added to make the molar ratio of SiO 2 to Na 2 O contained in the water glass and the alkali material 2.8 or less, preferably 2.5 or less. It consists of doing. In the present invention having such a constitution, low-viscosity and excellent permeation are generally obtained. Such a gelling time can be easily adjusted from a short time to a long time, and the initial strength is not so large, but it is apparent that 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 of the consolidation material according to the present invention was performed using the injection device shown in FIG. In FIG. 1, 1 is a compressor,
Reference numerals 2 and 3 are pressure gauges. A consolidation material 6 according to the present invention is filled in a water tank 5 provided with a stirrer 4 connected to the compressor 1. Reference numeral 7 denotes an acrylic mold into which sand 8 is filled. The consolidation 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 consolidating material 6 is infiltrated into the sand 8,
The condensed material 6 that has passed through is collected in the measuring cylinder 11 and the permeation state is measured. 9 and 10 are wire nets.
Table 4 shows the sand 8 filled in the acrylic mold 7, and Table 5 shows the measurement results of the penetration test.
【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。Δ: The consolidation material discharged from the mold gelled normally, and the consolidation inside was consolidated uniformly. Δ: The consolidation material discharged from the mold gelled normally, but the consolidation inside was uneven at the upper part, and the lower part was generally hard but the upper part was weak. X: Discharge of the consolidation material from the mold was clogged, irregular and incomplete, and the internal consolidation was 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 in Table 5-fine particle slag-
Experiment N consisting of silica fume-sodium aluminate
o. 1-4 and low-molar water glass-fine slag-fine fly ash-low-molar water glass that does not contain silica fume or fly ash has excellent permeability in Experiments Nos. 5-8 consisting of sodium aluminate- Slag-Slightly inferior in Experiments Nos. 9 to 12 consisting of sodium aluminate, and in Experiments Nos. 13 to 16 using slaked lime, the gelation time may be short, but the permeability is higher in the above Experiments Nos. 1 to 12. Is 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。According to the present invention, a low molar ratio water glass (having a 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 alkali material is further added so that the molar ratio of water glass and SiO 2 to Na 2 O contained in the alkali material is 2.5. A consolidation material used as a ground injection material having a size 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 gel time from a short time to a long time. 2. It has extremely low viscosity as a suspended grout, and exhibits excellent permeability not found in a suspended 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 view of an apparatus for injecting a 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 DESCRIPTION OF SYMBOLS 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 ＦＩ Ｃ０９Ｋ 17/02 Ｃ０９Ｋ 17/02 Ｐ 17/06 17/06 Ｐ Ｅ０２Ｄ 3/12 Ｅ０２Ｄ 3/12 // Ｃ０４Ｂ 111:70 Ｃ０９Ｋ 103:00 (58)調査した分野(Int.Cl.6，ＤＢ名) C09K 17/12 C04B 12/04 C04B 18/08 C04B 22/06 C04B 28/26 C09K 17/02 C09K 17/06 E02D 3/12 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI C09K 17/02 C09K 17/02 P 17/06 17/06 P E02D 3/12 E02D 3/12 // C04B 111: 70 C09K 103 : 00 (58) Surveyed fields (Int.Cl. 6 , DB name) C09K 17/12 C04B 12/04 C04B 18/08 C04B 22/06 C04B 28/26 C09K 17/02 C09K 17/06 E02D 3/12
Claims (5)
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ばれた一種または複数種とからな
り、前記微粒子スラグおよび微粒子フライアッシュがそ
れぞれ平均粒径約１０μｍ以下、比表面積約５０００ｃ
ｍ２／ｇ以上である固結用材料。 A low-molar-ratio water glass having a molar ratio of 2.8 or less , fine-particle slag, and one or more kinds selected from the group consisting of silica fume and fine-particle fly ash.
The fine particle slag and the fine fly ash each have an average particle size of about 10 μm or less and a specific surface area of about 5000 c.
A consolidation material having a m 2 / g or more.
材を添加してなる請求項１の固結用材料。2. The consolidation material according to claim 1, wherein an alkali material is further added to the consolidation material according to claim 1.
である請求項２の固結用材料。 3. The method according to claim 1, wherein the alkali material is sodium aluminate.
The consolidation material according to claim 2, which is:
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ＳｉＯ ２ とＮａ ２ Ｏのモル比
（ＳｉＯ ２ ／Ｎａ ２ Ｏ）が２．８以下であり、前記微粒
子スラグおよび微粒子フライアッシュがそれぞれ平均粒
径約１０μｍ以下、比表面積約５０００ｃｍ ２ ／ｇ以上
である固結用材料。 4. A water glass, a fine particle slag and a silica fuse.
Selected from the group of
Water or water, comprising one or more species and an alkali material.
Ratio of SiO 2 to Na 2 O contained in metal and alkali material
(SiO 2 / Na 2 O) is 2.8 or less,
Child slag and fine-particle fly ash each have an average grain size
Diameter of about 10 μm or less, specific surface area of about 5000 cm 2 / g or more
Is a consolidation material.
（ＳｉＯ ２ ／Ｎａ ２ Ｏ）が２．５以下である請求項４の
固結用材料。 5. The molar ratio between SiO 2 and Na 2 O according to claim 4.
5. The composition according to claim 4, wherein (SiO 2 / Na 2 O) is 2.5 or less.
Consolidation material.
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 JPH0859314A (en) | 1996-03-05 |
| JP2923838B2 true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09263759A (en) * | 1996-03-28 | 1997-10-07 | Kyokado Eng Co Ltd | Grout for ground solidification |
| JPH09316449A (en) * | 1996-06-03 | 1997-12-09 | Kyokado Eng Co Ltd | Chemical for grouting |
| JP3413398B2 (en) * | 2000-09-19 | 2003-06-03 | 強化土エンジニヤリング株式会社 | Ground consolidation method |
| JP5698774B2 (en) * | 2013-01-30 | 2015-04-08 | 土木地質株式会社 | High-density concrete and method for producing the same |
| JP7132569B2 (en) * | 2018-08-01 | 2022-09-07 | 三菱マテリアル株式会社 | Geopolymer solidification material, geopolymer solidification method |
| CN112250411A (en) * | 2020-10-16 | 2021-01-22 | 中国地质大学（北京） | Self-degradation temporary plugging cement and preparation method thereof |
-
1994
- 1994-08-12 JP JP21077894A patent/JP2923838B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0859314A (en) | 1996-03-05 |
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