JP2001064648A - Plastic grouting material - Google Patents
Plastic grouting materialInfo
- Publication number
- JP2001064648A JP2001064648A JP24123799A JP24123799A JP2001064648A JP 2001064648 A JP2001064648 A JP 2001064648A JP 24123799 A JP24123799 A JP 24123799A JP 24123799 A JP24123799 A JP 24123799A JP 2001064648 A JP2001064648 A JP 2001064648A
- Authority
- JP
- Japan
- Prior art keywords
- suspension
- cement
- seawater
- bentonite
- metakaolin
- 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
- C04B28/02—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
- C04B28/08—Slag cements
-
- 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
-
- 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
- C04B2111/74—Underwater applications
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、海水に接する注入
個所に適用する可塑性注入材に関するものである。この
ような可塑性注入材は、海洋構造物、港湾構造物等の護
岸壁裏込め等、海水に接する隙間等の充填部に注入及び
打設するために用いられる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic injection material applied to an injection point in contact with seawater. Such a plastic injection material is used for injecting and pouring into a filling portion such as a gap in contact with seawater, such as backfilling of a revetment wall of a marine structure or a harbor structure.
【０００２】[0002]
【従来の技術】従来、本願出願人は、特願平１０−１３
０１４３号（発明の名称、可塑性注入材）において、化
学的に安定しており、耐久性に優れ、しかも安価で容易
に入手可能な材料を用い、瞬時に可塑性体となり、限定
注入や流水下でも空洞充填が確実に行われる注入材料と
してセメントミルクとベントナイトミルクとを攪拌混合
して形成される可塑性注入材を提案している。2. Description of the Related Art Heretofore, the present applicant has filed a Japanese Patent Application No.
No. 0143 (Title of the invention, plastic injection material) is made of a material that is chemically stable, has excellent durability, is inexpensive and easily available, instantaneously becomes a plastic body, and can be used under limited injection or under flowing water. A plastic injection material formed by stirring and mixing cement milk and bentonite milk has been proposed as an injection material for reliably filling the cavity.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上述した従
来の発明に係る可塑性注入材にあっては、空洞充填部に
海水が接する充填部、即ち注入材に直接海水が接触した
り注入材に海水が混じるる個所でも、注入材が所定の強
度を得るようにしたいという要望がある。However, in the plastic injection material according to the above-mentioned conventional invention, the filling portion where seawater is in contact with the cavity filling portion, that is, the seawater directly contacts the injection material, or the injection material has seawater. There is a demand that the injected material should have a predetermined strength even in a place where is mixed.
【０００４】しかしながら、水硬性粉体として使用する
セメントは、海水中のＳＯ4 2- イオンと反応し、硫酸塩
による劣化が生じることがある。これはＳＯ4 2- イオン
が直接、間接にセメント硬化体中のＣ3 Ａと反応し、エ
トリンガイトを生成し、体積膨張を生じ、崩壊、ひび割
れ等が生じるためである。[0004] However, cement used as hydraulic powder sometimes reacts with SO 4 2− ions in seawater and may be degraded by sulfate. This is because the SO 4 2- ion directly and indirectly reacts with C 3 A in the hardened cement to generate ettringite, which causes volume expansion, and causes collapse, cracking and the like.
【０００５】そこで、本発明は、高い耐海水性を備えた
可塑性注入材を提供することを目的とする。Therefore, an object of the present invention is to provide a plastic injection material having high seawater resistance.
【０００６】[0006]
【課題を解決するための手段】本発明者らは前記課題を
解決すべく種々検討を重ねた結果、水硬性粉体として、
セメントに高炉スラグを通常最も優れた耐海水性を示す
と言われている６０〜７０重量％よりも高い割合で配合
したものを使用し、この懸濁液と、適切な可塑化材の懸
濁液とを混合することにより、可塑性を備え且つ、高い
耐海水性を備える可塑性注入材が得られることを見い出
し、本発明を完成するに至った。Means for Solving the Problems The present inventors have conducted various studies to solve the above-mentioned problems, and as a result, as a hydraulic powder,
A mixture of cement and blast furnace slag in a proportion higher than 60 to 70% by weight, which is generally said to exhibit the best seawater resistance, is used. It has been found that by mixing with a liquid, a plastic injection material having plasticity and high seawater resistance can be obtained, and the present invention has been completed.
【０００７】また、可塑化材としては、ベントナイト、
メタカオリン及びアタパルジャイトから選ばれる少なく
とも１種であれば、上記可塑性を発揮しつつ高い耐海水
性を保つことができる。[0007] As the plasticizer, bentonite,
At least one selected from metakaolin and attapulgite can maintain high seawater resistance while exhibiting the above plasticity.
【０００８】上記課題を解決するための請求項１に記載
の発明は、セメント５〜２０重量％と高炉スラグ８０〜
９５重量％を含む水硬性粉体の懸濁液と、可塑化材の懸
濁液とを攪拌混合して形成される可塑性注入材である。[0008] The invention according to claim 1 for solving the above-mentioned problems is characterized in that 5 to 20% by weight of cement and blast furnace slag 80 to
This is a plastic injection material formed by stirring and mixing a suspension of hydraulic powder containing 95% by weight and a suspension of a plasticizer.
【０００９】高炉スラグを８０重量％未満にすると、上
記セメント系固化材が、海水中のＳＯ4 2- イオンと反応
し注入材が硬化後において破壊し、強度を発揮できな
い。If the blast furnace slag content is less than 80% by weight, the cement-based solidification material reacts with SO 4 2− ions in seawater, and the injected material is broken after hardening, failing to exhibit strength.
【００１０】また、高炉スラグを９５重量％を超える値
にすると、セメント中のカルシウムイオン量が十分でな
いため注入材の可塑性が不十分となり、しかも硬化後、
強度発現が遅くなる。On the other hand, if the blast furnace slag is set to a value exceeding 95% by weight, the plasticity of the injected material becomes insufficient due to the insufficient amount of calcium ions in the cement.
Strength development slows down.
【００１１】また、請求項２に記載の発明は請求項１に
記載の発明において、可塑化材が、ベントナイト、メタ
カオリン及びアタパルジャイトから選ばれる少なくとも
１種からなる可塑性注入材である。Further, the invention according to claim 2 is the plastic injection material according to claim 1, wherein the plasticizer is at least one selected from bentonite, metakaolin and attapulgite.
【００１２】ベントナイト、メタカオリン及びアタパル
ジャイトは、可塑化材として、何れも十分な性能を発揮
する。Bentonite, metakaolin and attapulgite all exhibit sufficient performance as plasticizers.
【００１３】ベントナイト、メタカオリン、及びアタパ
ルジャイトは、これらの懸濁液と水硬性粉体の懸濁液と
を混合した場合に急激な凝集反応が発生するため水硬性
粉体の懸濁液を有効に可塑化することができる。[0013] Bentonite, metakaolin and attapulgite can be used effectively when a suspension of these powders is mixed with a suspension of hydraulic powder, because a rapid aggregation reaction occurs. It can be plasticized.
【００１４】特に、メタカオリンを使用した可塑性注入
材は、混合前の可塑化材の懸濁液のフロー値を一定にな
るように作液した場合に、可塑化材の量が多くできるた
め、緻密な構造を形成し、化学的抵抗性が高くなり、海
水に対して優れた耐久性を備えたものとなる。In particular, a plastic injection material using metakaolin can have a large amount of plasticizer when a flow of a suspension of the plasticizer before mixing is made constant so that the amount of the plasticizer can be increased. It has a high degree of chemical resistance, and has excellent durability against seawater.
【００１５】[0015]
【発明実施の形態】本発明の可塑性注入材では、Ａ液と
して水硬性粉体である高炉スラグ及びセメントと水の懸
濁液（必要により砂、レキ、発泡ビーズ、気泡及び各種
混和剤を単独又は組み合わせて配合）が調製され、これ
とは別にＢ液として可塑化材の懸濁液（ベントナイト、
アタパルジャイト又はメタカオリン、水、必要により各
種混和剤を配合）が調製される。そして、Ａ液とＢ液を
混合し、瞬時に可塑化させる。BEST MODE FOR CARRYING OUT THE INVENTION In the plastic injection material of the present invention, a blast furnace slag which is a hydraulic powder and a suspension of cement and water (as needed, sand, rake, foam beads, air bubbles and various admixtures alone) are used as the liquid A. Or a combination thereof) is prepared, and separately from the suspension, a plasticizer suspension (bentonite,
Attapulgite or metakaolin, water and, if necessary, various admixtures) are prepared. Then, the A liquid and the B liquid are mixed and plasticized instantaneously.
【００１６】Ａ液に用いる高炉スラグについては特に制
限はないが、ＪＩＳ Ｒ ５２１１「高炉セメント」に
規定されているものが好ましい。The blast furnace slag used for the solution A is not particularly limited, but those specified in JIS R 5211 "Blast furnace cement" are preferable.
【００１７】また、Ａ液に用いるセメントは、普通、早
強、超早強、白色、耐硫酸塩、中庸熱、低熱などの各種
ポルトランドセメント、前記ポルトランドセメントの少
なくとも一種とフライアッシュなどとを混合した混合セ
メント、ジェットセメント、アルミナセメントなどの特
殊セメント、及びセメント系固化材から選ぶことができ
る。[0017] The cement used for the liquid A may be any of various kinds of Portland cements such as ordinary, fast, ultra-fast, white, sulfate-resistant, moderate heat and low heat, and a mixture of at least one of the above Portland cements and fly ash. It can be selected from mixed cements, jet cements, special cements such as alumina cements, and cement-based solidified materials.
【００１８】このようにして調整される水硬性粉体の懸
濁液は、必要に応じて起泡剤を発泡処理した気泡を混合
しエアミルクとしてよい。また、水硬性粉体の懸濁液に
は、砂、レキ、発泡ビーズを含むように構成することが
できる。The suspension of the hydraulic powder thus prepared may be mixed with air bubbles obtained by foaming a foaming agent, if necessary, to form air milk. In addition, the suspension of the hydraulic powder can be configured to include sand, rubbing, and foam beads.
【００１９】Ａ液の水硬性粉体の懸濁液には必要に応じ
て、減水剤などの混和剤を添加してもよい。混和剤の添
加によっては練り上がり後の可塑性に影響はない。ま
た、減水剤添加によりＡ液中の単位水量を減らしたり、
単位セメント量を増加させることが可能なことより、高
強度化及び軽量化のためにとり得る配合設定の範囲を拡
大させることが可能である。また、Ａ液の水硬性粉体の
懸濁液に材料分離の可能性がある場合、材料分離防止を
目的として、Ａ液に少量のベントナイトを必要に応じて
添加することも可能である。If necessary, an admixture such as a water reducing agent may be added to the suspension of the hydraulic powder of the liquid A. The addition of the admixture does not affect the plasticity after kneading. Also, by adding a water reducing agent, the amount of water in solution A can be reduced,
Since it is possible to increase the unit cement amount, it is possible to expand the range of possible mixing settings for high strength and light weight. When the suspension of the hydraulic powder of the liquid A has a possibility of material separation, a small amount of bentonite can be added to the liquid A as needed for the purpose of preventing material separation.
【００２０】Ｂ液に用いるベントナイト、メタカオリン
もしくはアタパルジャイトの品位については特に制限は
ないが、ベントナイトは膨潤力が１５以上のもの、メタ
カオリン及びアタパルジャイトは８０メッシュの篩で全
通となる粒径以下のものが好ましい。The quality of the bentonite, metakaolin or attapulgite used in the solution B is not particularly limited. Bentonite has a swelling power of 15 or more, and metakaolin and attapulgite have a particle size not exceeding the size that can be fully passed through an 80-mesh sieve. Is preferred.
【００２１】本発明は、上記のごとく予め調製したＡ
液、Ｂ液をそれぞれミルク状態、懸濁液状態にして瞬時
に混合する。Ａ液の水硬性粉体の懸濁液は、水溶液がセ
メントから遊離されるカルシウムイオンで過飽和の状態
となり、プラス荷電のカルシウムイオンで満たされてい
る。The present invention relates to the preparation of A prepared in advance as described above.
The liquid and the liquid B are made into a milk state and a suspension state, respectively, and mixed instantaneously. The suspension of the hydraulic powder of the liquid A is in an oversaturated state with calcium ions released from the cement, and is filled with positively charged calcium ions.
【００２２】一方、Ｂ液の懸濁液は、マイナスイオンに
荷電している。このようなミルクと懸濁液との混合によ
って、ベントナイト、メタカオリン又はアタパルジャイ
ト粒子表面のマイナス荷電をカルシウムプラスイオンが
中和することにより、ベントナイト、メタカオリン又は
アタパルジャイト粒子の分子間引力並びに表面積効果に
基づく急激な凝集作用により、瞬時に可塑化させること
ができる。On the other hand, the suspension of the solution B is charged to negative ions. By mixing such a milk with the suspension, the calcium plus ion neutralizes the negative charge on the surface of the bentonite, metakaolin or attapulgite particles, so that abruptness based on the intermolecular attractive force of the bentonite, metakaolin or attapulgite particles and the surface area effect is achieved. It can be instantaneously plasticized by a cohesive action.
【００２３】なお、本発明におけるＡ液、Ｂ液の混合割
合は、使用目的に応じて適宜決定されるものである。混
練時間はハンドミキサーで１５秒程度以下が好適であ
り、それ以上の混練では材料分離を生じ易くなるので好
ましくはない。The mixing ratio of the solution A and the solution B in the present invention is appropriately determined according to the purpose of use. The kneading time is preferably about 15 seconds or less using a hand mixer, and longer kneading is not preferable because material separation easily occurs.
【００２４】可塑性注入材の配合材料中の全水量のＡ
液、Ｂ液間の分配量の変更は特に制限はないが、Ａ液の
水硬性粉体の懸濁液の材料分離抵抗性を高めるために
は、均質な水硬性粉体の懸濁液の調製可能な範囲でＡ液
の水をできるだけ少なくすべきである。A of the total water amount in the compounding material of the plastic injection material
The change of the distribution amount between the liquid and the liquid B is not particularly limited. However, in order to increase the material separation resistance of the suspension of the hydraulic powder of the liquid A, the suspension of the homogeneous hydraulic powder is required. The amount of water in solution A should be as low as possible within the range that can be prepared.
【００２５】また、可塑化性能を向上するためにＢ液の
懸濁液をより均一に分散させる必要があり、そのために
は、Ｂ液の水量をより多くする必要がある。即ち、全水
量を一定とする場合、均一混合性能の低下しない範囲で
Ａ液の水量を極力少なく、Ｂ液の水量を極力多くする配
合が最適である。Further, in order to improve the plasticizing performance, it is necessary to disperse the suspension of the liquid B more uniformly, and for that purpose, it is necessary to increase the amount of water of the liquid B. That is, when the total amount of water is kept constant, it is optimal to minimize the amount of the solution A and increase the amount of the solution B as much as possible within a range where the uniform mixing performance is not reduced.
【００２６】[0026]
【実施例】本発明方法を下記実施例によりさらに説明す
る。以下の実施例において、注入材の調製方法、試験材
料、及び試験方法は次の通りである。The method of the present invention will be further described with reference to the following examples. In the following examples, preparation methods, test materials, and test methods of the injection material are as follows.
【００２７】〔調製方法〕Ａ液は、高炉スラグと普通ポ
ルトランドセメントと、水とをハンドミキサーで２分間
混練して調製した。[Preparation Method] Solution A was prepared by kneading blast furnace slag, ordinary Portland cement, and water with a hand mixer for 2 minutes.
【００２８】Ｂ液は、ベントナイトと、水とをそれぞれ
往復攪拌ミキサーで５分間混練して調製した。Ａ液とＢ
液の混合は、ハンドミキサーで１０〜１５秒程度混練し
て調製した。Solution B was prepared by kneading bentonite and water with a reciprocating mixer for 5 minutes. Liquid A and B
The mixture of the liquid was prepared by kneading with a hand mixer for about 10 to 15 seconds.
【００２９】〔試験材料〕試験に使用した材料は以下の
通りである。 Ａ材（固化材） 普通ポルトランドセメント：粉末度比表面積３３３０ 高炉スラグ：塩基度（ＪＩＳ Ｒ ５２１１に規定）
１．８５，粉末度比表面積４５２０ Ｂ材（可塑化材） ベントナイト：膨潤力１６ 上記ベントナイトは２００メッシュふるい全通の粒径に
調整したものである。[Test Materials] Materials used in the test are as follows. A material (solidified material) Ordinary Portland cement: fineness specific surface area 3330 Blast furnace slag: basicity (specified in JIS R 5211)
1.85, fineness specific surface area 4520 Material B (plasticizing material) Bentonite: Swelling force 16 The bentonite is adjusted to a particle size of 200 mesh sieve.
【００３０】〔試験〕試験項目として「フロー値」の測
定、「可塑性」の判定、及び「耐海水の試験」を以下の
ような基準で行った。尚、これらの例ではＡ液とＢ液と
の配合は、表１に従って行った。[Test] As test items, measurement of "flow value", determination of "plasticity", and "test of seawater resistance" were performed according to the following criteria. In these examples, the mixing of the solution A and the solution B was performed according to Table 1.
【００３１】[0031]
【表１】 [Table 1]
【００３２】（フロー値及び可塑化判定） 日本道路公団規格「エアモルタル及びエアミルクの試験
方法（ＪＨＳＡ ３１３−１９９２）」のコンシステン
シー試験方法のシリンダー法に準拠 内径８cm高さ８cmのシリンダーに試料を入れ、シリンダ
ー引き抜き後の試料の底面の直径をフロー値として測定
した。(Flow Value and Judgment of Plasticization) The sample was placed in a cylinder having an inner diameter of 8 cm and a height of 8 cm in accordance with the cylinder method of the consistency test method of the Japan Road Public Corporation Standard “Test method for air mortar and air milk (JHSA 313-1992)”. Then, the diameter of the bottom surface of the sample after the cylinder was pulled out was measured as a flow value.
【００３３】高炉スラグと普通ポルトランドセメントの
配合比率を変え、４列について試験を行った。例１乃至
例４について、フロー値が１２０ｍｍ以下は可塑性良と
して「○」ととして示した。Ａ液の固化材の配合比率お
よび結果を表２に示す。The test was conducted on four rows while changing the mixing ratio of the blast furnace slag and the ordinary Portland cement. In Examples 1 to 4, when the flow value was 120 mm or less, it was indicated as “○” as having good plasticity. Table 2 shows the mixing ratio of the solidified material of the liquid A and the results.
【００３４】[0034]
【表２】 [Table 2]
【００３５】これにより、例１〜例４は、可塑性につい
ては良好であると判断される。Thus, Examples 1 to 4 are judged to be excellent in plasticity.
【００３６】（耐海水試験）上記４例について、φ５×
１０ｃｍの供試体を作成し、これらの供試体をその体積
の１０倍の人工海水（２０℃）に浸漬し、所定の材令で
一軸圧縮強度試験を行なうと共に供試体の劣化を目視で
観察した。その結果を表３に示す。(Seawater resistance test) For the above four examples, φ5 ×
Specimens of 10 cm were prepared, and these specimens were immersed in artificial seawater (20 ° C.) 10 times the volume of the specimens. A uniaxial compressive strength test was performed at a predetermined material age, and deterioration of the specimens was visually observed. . Table 3 shows the results.
【００３７】[0037]
【表３】 [Table 3]
【００３８】なお、試験に使用した人工海水の組成と、
自然の海水の成分の組成を表４に示す。The composition of the artificial seawater used for the test was
Table 4 shows the composition of the components of natural seawater.
【００３９】[0039]
【表４】 [Table 4]
【００４０】また、上記組成の人工海水を作成した海水
固形物（マリンエッセンスＮＫ−１（日本家庭用塩株式
会社製））（清水に４％希釈して人工海水とした）の組
成を表５に示す。Table 5 shows the composition of a seawater solid (Marine Essence NK-1 (manufactured by Nippon Domestic Salt Co., Ltd.)) prepared from the artificial seawater having the above composition (diluted in fresh water by 4% to obtain artificial seawater). Shown in
【００４１】[0041]
【表５】 [Table 5]
【００４２】（気中試験）参考のため、上記４例につい
ての気中養生試験の結果を表６に示す。耐海中試験と同
様のφ５×１０ｃｍの４例の供試体を大気雰囲気（２０
°Ｃ）で養生し、所定の材令で一軸圧縮試験を行なっ
た。(Aerial Test) For reference, the results of the aerial curing test for the above four examples are shown in Table 6. Four specimens of φ5 × 10 cm similar to those in the sea resistance test were placed in the atmosphere (20
° C), and a uniaxial compression test was performed at a prescribed age.
【００４３】[0043]
【表６】 この例によれば、例１乃至１例４は従来品よりも大きな
強度を発揮していることがわかる。[Table 6] According to this example, it can be seen that Examples 1 to 1 exhibit higher strength than the conventional product.
【００４４】〔その他の実施例〕本発明によれば、水硬
性粉体として、セメントに高炉スラグを高い割合で配合
したものを使用した場合には、可塑化材としてベントナ
イト以外にメタカオリン、又はアタパルジャイトを使用
しても耐海水性を低下させることはないと推定できる。[Other Embodiments] According to the present invention, when a mixture of blast furnace slag and cement in a high ratio is used as a hydraulic powder, metakaolin or attapulgite other than bentonite is used as a plasticizer. It can be estimated that the use of No. does not reduce the seawater resistance.
【００４５】本願出願人が出願した特願平１１−２２６
７５４号には、メタカオリン、及びアタパルジャイトが
優れた可塑化材であることが詳細に示されている。表７
は前記特許願における各可塑化材と固化材の配合であ
る。表８は各可塑化材別に前記配合によって得られる可
塑性注入材の可塑性判定を行ったものである。表９は前
記配合によって得られる可塑性注入材の硬化体を、前記
耐海水試験と同様の人工海水に浸漬し、所定の材令での
供試体の状況を観察し、耐海水性判定を行ったものであ
る。Japanese Patent Application No. 11-226 filed by the present applicant
No. 754 describes in detail that metakaolin and attapulgite are excellent plasticizers. Table 7
Is a combination of each plasticizer and the solidified material in the patent application. Table 8 shows the plasticity judgment of the plastic injection material obtained by the above-mentioned compounding for each plasticizer. Table 9 shows that the cured product of the plastic injection material obtained by the blending was immersed in the same artificial seawater as in the seawater resistance test, and the condition of the specimen at a predetermined material age was observed to determine the seawater resistance. Things.
【００４６】[0046]
【表７】 [Table 7]
【００４７】[0047]
【表８】 [Table 8]
【００４８】[0048]
【表９】 [Table 9]
【００４９】表８によれば、ベントナイト、メタカオリ
ン、及びアタパルジャイトは、Ａ液、Ｂ液の混合後ほぼ
同等のフロー値を示し、可塑性が同等の性能を備えてい
ることが分かる。According to Table 8, bentonite, metakaolin, and attapulgite show almost the same flow value after mixing of the solution A and the solution B, and have the same plasticity.
【００５０】表９によれば、メタカオリンは、これを可
塑化材に使用すると、優れた耐海水性を示すことがわか
り、本願の高炉スラグを主成分とする固化材を組み合わ
せるこにより更に優れた耐海水性を発揮することができ
る。According to Table 9, it was found that when metakaolin was used as a plasticizer, it exhibited excellent seawater resistance, and was further improved by combining the solidified material mainly containing blast furnace slag of the present invention. It can exhibit seawater resistance.
【００５１】[0051]
【発明の効果】本発明によれば、可塑性注入材をセメン
ト５〜２０重量％と高炉スラグ８０〜９５重量％を含む
水硬性粉体の懸濁液と、可塑化材の懸濁液とを攪拌混合
して形成されるものとしたので、高い耐海水性を備えた
可塑性注入材を得ることができる。According to the present invention, the plastic injection material comprises a suspension of hydraulic powder containing 5 to 20% by weight of cement and 80 to 95% by weight of blast furnace slag, and a suspension of plasticizer. Since it is formed by stirring and mixing, a plastic injection material having high seawater resistance can be obtained.
【００５２】また、可塑化材が、ベントナイト、メタカ
オリン及びアタパルジャイトから選ばれる少なくとも１
種からなる請求項１に記載の可塑性注入材を使用するこ
とにより安価で、化学的に安定した可塑性注入材を得る
ことができる。In addition, the plasticizer is at least one selected from bentonite, metakaolin and attapulgite.
By using the plastic injection material according to claim 1 made of a seed, an inexpensive and chemically stable plastic injection material can be obtained.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 内沢 司 千葉県船橋市豊富町585番地 住友大阪セ メント株式会社セメント・コンクリート研 究所関東技術センター内 (72)発明者 ▲吉▼原 正博 千葉県船橋市豊富町585番地 住友大阪セ メント株式会社セメント・コンクリート研 究所関東技術センター内 Ｆターム(参考） 2D040 AA06 AB01 BB03 CA01 CA04 CA10 CB03 4H026 CA01 CA05 CB01 CB05 CC03 CC06 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tsukasa Uchizawa 585 Tomimachi, Funabashi-shi, Chiba Sumitomo Osaka Cement Co., Ltd. 585 Tomicho, Funabashi City Sumitomo Osaka Cement Co., Ltd. C-Concrete Research Institute Kanto Technical Center F-term (reference) 2D040 AA06 AB01 BB03 CA01 CA04 CA10 CB03 4H026 CA01 CA05 CB01 CB05 CC03 CC06
Claims (2)
〜９５重量％を含む水硬性粉体の懸濁液と、可塑化材の
懸濁液とを攪拌混合して形成される可塑性注入材。1. A blast furnace slag 80 containing 5 to 20% by weight of cement.
A plastic injection material formed by stirring and mixing a suspension of hydraulic powder containing up to 95% by weight and a suspension of a plasticizer.
及びアタパルジャイトから選ばれる少なくとも１種から
なる請求項１に記載の可塑性注入材。2. The plastic injection material according to claim 1, wherein the plasticizer comprises at least one selected from bentonite, metakaolin and attapulgite.
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|---|---|---|---|
| JP24123799A JP3502306B2 (en) | 1999-08-27 | 1999-08-27 | Plastic injection material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24123799A JP3502306B2 (en) | 1999-08-27 | 1999-08-27 | Plastic injection material |
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| Publication Number | Publication Date |
|---|---|
| JP2001064648A true JP2001064648A (en) | 2001-03-13 |
| JP3502306B2 JP3502306B2 (en) | 2004-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24123799A Expired - Lifetime JP3502306B2 (en) | 1999-08-27 | 1999-08-27 | Plastic injection material |
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| Country | Link |
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| JP (1) | JP3502306B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013065229A1 (en) * | 2011-11-04 | 2013-05-10 | Ｊｆｅスチール株式会社 | Filling material and ground-repairing method |
| JP5916933B1 (en) * | 2015-10-16 | 2016-05-11 | 株式会社大阪防水建設社 | Two-component plastic grout material |
| JP2016180063A (en) * | 2015-03-24 | 2016-10-13 | 住友大阪セメント株式会社 | Plastic injection material |
| CN109650806A (en) * | 2018-12-06 | 2019-04-19 | 北京纽维逊建筑工程技术有限公司 | A kind of ocean engineering cement-based grouting material and preparation method thereof |
| JP2020026369A (en) * | 2018-08-10 | 2020-02-20 | 株式会社大林組 | Plastic injection material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2020026369A (en) * | 2018-08-10 | 2020-02-20 | 株式会社大林組 | Plastic injection material |
| JP7155736B2 (en) | 2018-08-10 | 2022-10-19 | 株式会社大林組 | Plastic injection material |
| CN109650806A (en) * | 2018-12-06 | 2019-04-19 | 北京纽维逊建筑工程技术有限公司 | A kind of ocean engineering cement-based grouting material and preparation method thereof |
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