JPH07300358A - Hydraulic grout material for paving and grout - Google Patents
Hydraulic grout material for paving and groutInfo
- Publication number
- JPH07300358A JPH07300358A JP11740994A JP11740994A JPH07300358A JP H07300358 A JPH07300358 A JP H07300358A JP 11740994 A JP11740994 A JP 11740994A JP 11740994 A JP11740994 A JP 11740994A JP H07300358 A JPH07300358 A JP H07300358A
- Authority
- JP
- Japan
- Prior art keywords
- grout
- weight
- parts
- cement
- blast furnace
- 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
- C04B28/04—Portland 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、一定の粉末度を有する
高炉スラグ微粉末とポルトランドセメントの混合物、高
炉スラグ細骨材および高性能減水剤からなる舗装用グラ
ウト材料を所定量の水で混練することにより、アスファ
ルト混合物への注入性に優れ、また硬化後に高い強度と
耐久性を有する半たわみ性舗装を形成することができる
水硬性グラウト材料とグラウトに関する。The present invention relates to a paving grout material consisting of a mixture of blast-furnace slag fine powder having a certain fineness and Portland cement, blast-furnace slag fine aggregate and a high-performance water-reducing agent and kneaded with a predetermined amount of water. By doing so, the present invention relates to a hydraulic grout material and grout capable of forming a semi-flexible pavement having excellent pouring properties into an asphalt mixture and having high strength and durability after curing.
【０００２】[0002]
【従来の技術】半たわみ性舗装は、母体となる開粒度ア
スファルト混合物の空隙中（通常空隙率２１〜２５％）
にセメントミルクなどのグラウト材を充填し、骨材同士
のかみ合わせとグラウト硬化体の強度により、上載荷重
に抵抗する舗装体で、アスファルト舗装のたわみ性とコ
ンクリート舗装の剛性を兼ね備えた舗装である。2. Description of the Related Art Semi-flexible pavement is used in the voids of an open-grain size asphalt mixture as a matrix (usually the void ratio is 21 to 25%).
It is a pavement that is filled with grout material such as cement milk and that resists overloading due to the strength of the grout hardened material and the interlocking of aggregates. It is a pavement that has the flexibility of asphalt pavement and the rigidity of concrete pavement.
【０００３】この舗装は耐流動性や耐磨耗性に優れてい
るため、重交通舗装や、交差点、料金所付近などの発進
停止による交通荷重の過酷なところ、あるいは耐油性、
難燃性が求められる工場、ガソリンスタンドなどの舗装
表層の構築に近年盛んに用いられている。Since this pavement is excellent in flow resistance and abrasion resistance, it has a heavy traffic pavement, a severe traffic load due to starting and stopping at intersections, around toll gates, etc., or oil resistance,
It has been widely used in recent years for construction of pavement surface layers such as factories and gas stations where flame retardancy is required.
【０００４】半たわみ性舗装に用いられるグラウトの所
要特性としては、注入性が良好であること、ブリー
ジングが少ないこと、アスファルト面に対する付着が
良好であること、硬化時の体積変化が少ないこと、
十分な強度を有すること、耐久性を有すること、など
が挙げられる。The required properties of the grout used for semi-flexible pavement include good pouring properties, little breathing, good adhesion to the asphalt surface, and little volume change during curing.
It has sufficient strength and durability.
【０００５】半たわみ性舗装用グラウトには、セメント
ミルク、あるいは、セメントに添加材を少量配合したモ
ルタルが用いられる。セメントは普通ポルトランドセメ
ント、早強ポルトランドセメントあるいは超速硬性タイ
プのものには、超速硬性セメントが用いられており、添
加材には、フライアッシュ、けい砂、石粉などが使用さ
れる。その他、ゴム系、樹脂系エマルジョン、アスファ
ルト、高分子乳剤などが加えられる。For the semi-flexible paving grout, cement milk or mortar in which a small amount of an additive is mixed with cement is used. Cement is generally used for Portland cement, early-strength Portland cement, or ultra-rapid setting type cement, and ultra-rapid setting cement is used, and fly ash, silica sand, stone powder, etc. are used as additives. In addition, rubber-based, resin-based emulsion, asphalt, polymer emulsion and the like are added.
【０００６】グラウトは、半たわみ性舗装を舗設する直
前に現場で粉末グラウト材料に水、エマルジョン等を加
えて混練し、所定の流動性を持つよう調整して開粒度ア
スファルト混合物に注入される。[0006] Immediately before paving a semi-flexible pavement, the grout is added to the powdered grout material by adding water, emulsion and the like, kneading, adjusted to have a predetermined fluidity, and then injected into the open particle size asphalt mixture.
【０００７】グラウトの注入性は、一般に、Ｐロート流
下時間で測定され、日本道路協会「アスファルト舗装要
綱」（以下、舗装要綱と称する）によれば、１０〜１４
秒が好適とされる。この場合、粘性を下げ流動性を増す
ために、通常、粉末材料に対して重量で５０％以上の高
い水比で混練する必要がある。The grout pouring property is generally measured by the P funnel flow time, and is 10 to 14 according to the Japan Road Association "Asphalt Pavement Guidelines" (hereinafter referred to as "pavement guidelines").
Seconds are preferred. In this case, in order to lower the viscosity and increase the fluidity, it is usually necessary to knead the powder material at a high water ratio of 50% or more by weight.
【０００８】[0008]
【発明が解決しようとする課題】グラウトの混練水量が
多いと、注入の際にアスファルト中を流下する時や硬化
する前までの間にブリージングや骨材沈降などの材料分
離を生じる、硬化および乾燥に伴う収縮が大きい、硬化
体の強度発現が小さいなどの欠点を有する。When the amount of kneading water in the grout is large, material separation such as breathing and aggregate sedimentation occurs when flowing down in the asphalt during pouring or before hardening. There are drawbacks such as a large shrinkage accompanying the above and a small strength development of the cured product.
【０００９】従って、形成された半たわみ性舗装も所定
の出来型を保てない、ひび割れを有するなどの欠陥を生
じ、また舗装の供用開始後は、硬化体の強度不足からく
る骨材のはく奪、飛散、路面のひび割れや剥離の発生な
ど舗装機能や耐久性に問題を生じる。Therefore, the formed semi-flexible pavement also has defects such as not being able to maintain a predetermined shape and having cracks, and after the pavement is put into service, the aggregate is stripped due to insufficient strength of the hardened body. , Scattering, cracking and peeling of the road surface will cause problems with pavement function and durability.
【００１０】半たわみ性舗装は、従来のアスファルト舗
装では機能不足であった交通荷重の過酷な箇所に使用さ
れるため、上記のような欠陥は重大である。特に、積雪
地方の冬期では、現在制限される方向にあるとは言え、
スパイクタイヤを装着した重車両などが走行し舗装面に
大きな損傷を与えている。Since the semi-flexible pavement is used in a place where the traffic load is severe, which is insufficient in the conventional asphalt pavement, the above defects are serious. Especially in the winter season of the snowy region, although it is currently in a restricted direction,
Heavy vehicles, such as those equipped with spiked tires, are running and are severely damaging the pavement surface.
【００１１】これらの欠陥を補うため、グラウトの水比
を低下させると、グラウトの粘性が増し注入性が損なわ
れ、アスファルト混合物に充分に充填されず、結局半た
わみ性舗装としての機能を発揮できないというジレンマ
があった。If the water ratio of the grout is lowered to compensate for these defects, the viscosity of the grout is increased, the injection property is impaired, the asphalt mixture is not sufficiently filled, and the function as a semi-flexible pavement cannot be finally exhibited. There was a dilemma.
【００１２】また、半たわみ性舗装を傾斜面で施工しよ
うとする場合、粘性の低いグラウトでは、流下速度が大
きいため高低差により流下して、上方はグラウトが充填
されず、下方ではオーバーフローするような状態にな
る。従来のグラウトでは、舗設する面が３％以上の勾配
を有するところでは施工が困難であった（例えば、藤
田，服部，幸田：半たわみ性舗装勾配部の配合検討，第
２０回日本道路会議諭文集）。In addition, when a semi-flexible pavement is to be constructed on an inclined surface, a grout having a low viscosity has a large flow-down velocity and therefore flows down due to a difference in height, so that the grout is not filled in the upper part and overflows in the lower part. It will be in a state. With conventional grout, it was difficult to construct where the surface to be paved had a slope of 3% or more (eg, Fujita, Hattori, Koda: Study on compounding of semi-flexible pavement slope section, 20th Japan Road Conference) Collection).
【００１３】さらには、半たわみ性舗装を舗設する場
合、注入する開粒度アスファルトの温度が高ければ、グ
ラウトの粘性が増し流動性が低下してアスファルトの空
隙に十分充填されない。このため、アスファルト温度が
５０℃以下に低下するまで注入を待たなければならず、
施工における時間ロスが大きかった。Further, when the semi-flexible pavement is laid, if the temperature of the open-grain size asphalt to be injected is high, the viscosity of the grout increases and the fluidity decreases, so that the voids of the asphalt cannot be sufficiently filled. Therefore, it is necessary to wait for the injection until the asphalt temperature drops below 50 ° C.
The time loss in construction was large.
【００１４】本発明の目的は、注入性が良好で、強度が
高く、耐久的であって、傾斜面でも注入可能であり、ま
たアスファルト温度がある程度高くとも施工できるよう
な半たわみ性舗装用のグラウト材料およびグラウトを提
供することにある。The object of the present invention is to provide semi-flexible pavement which has good pouring property, high strength, is durable, can be poured even on an inclined surface, and can be constructed even if the asphalt temperature is high to some extent. Providing grout material and grout.
【００１５】[0015]
【課題を解決するための手段】発明者らは、上記目的を
達成すべく種々検討した結果、一定以上のブレーン比表
面積を有するスラグ微粉末とセメントに高炉スラグ細骨
材と高性能減水剤を配合したものが問題の解決に有効で
あることを見出した。Means for Solving the Problems As a result of various studies to achieve the above object, the inventors have found that blast furnace slag fine aggregate and a high-performance water-reducing agent are added to slag fine powder and cement having a specific Blaine specific surface area or more. It was found that the compounded one was effective in solving the problem.
【００１６】すなわち、この発明は、（１）ポルトラン
ドセメント１０〜７０重量部と、粉末度がブレーン比表
面積（ｃｍ2／ｇ）で６０００以上の高炉スラグ微粉末
９０〜３０重量部からなるセメント質１００重量部と、
粒度が３０μｍ〜０．３ｍｍの高炉スラグ細骨材５０〜
１５０重量部および高性能減水剤０．２〜３．０重量部
からなることを特徴とする舗装用水硬性グラウト材料。That is, the present invention provides (1) a cement material comprising 10 to 70 parts by weight of Portland cement and 90 to 30 parts by weight of blast furnace slag fine powder having a fineness of Blaine specific surface area (cm 2 / g) of 6000 or more. 100 parts by weight,
Blast furnace slag fine aggregate 50 with a particle size of 30 μm to 0.3 mm
A hydraulic grout material for pavement comprising 150 parts by weight and 0.2 to 3.0 parts by weight of a high performance water reducing agent.
【００１７】（２）（１）記載の舗装用水硬性グラウト
材料１００重量部を２０〜４０重量部の水で混練するこ
とにより得られる半たわみ性舗装用グラウト。(2) A semi-flexible paving grout obtained by kneading 100 parts by weight of the paving hydraulic grout material described in (1) with 20 to 40 parts by weight of water.
【００１８】（３） ポルトランドセメント１０〜３０
重量部と、粉末度がブレーン比表面積（ｃｍ2／ｇ）で
６０００以上の高炉スラグ微粉末９０〜７０重量部から
なるセメント質１００重量部と、粒度３０μｍ〜０．３
ｍｍの高炉スラグ細骨材５０〜１５０重量部および高性
能減水剤０．２〜３．０重量部からなる舗装用水硬性グ
ラウト材料１００重量部を２０〜４０重量部の水で混練
することにより得られる半たわみ性舗装用グラウト、で
ある。(3) Portland cement 10-30
100 parts by weight of cementitious material consisting of 90 to 70 parts by weight of blast furnace slag fine powder having a Blaine specific surface area (cm 2 / g) of 6000 or more by weight, and a particle size of 30 μm to 0.3.
mm ground blast furnace slag fine aggregate 50 to 150 parts by weight and high performance water reducing agent 0.2 to 3.0 parts by weight 100 parts by weight of a hydraulic paving grout material for paving is kneaded with 20 to 40 parts by weight of water. It is a semi-flexible paving grout.
【００１９】以下詳しく説明する。A detailed description will be given below.
【００２０】本発明で用いるセメントは、自ら水和硬化
物を生成するとともに後述の高炉スラグ微粉末の潜在水
硬性を発揮させる刺激剤の役割を担うものである。この
ためには、ポルトランドセメントの配合量はセメント質
１００重量％中、１０重量％以上が必要である。上限は
７０重量％である。セメントはＪＩＳに定める各種ポル
トランドセメントを使用することができる。The cement used in the present invention plays a role of a stimulant which produces a hydrated cured product by itself and exerts latent hydraulicity of the blast furnace slag fine powder described later. For this purpose, the content of Portland cement must be 10% by weight or more in 100% by weight of cement. The upper limit is 70% by weight. As the cement, various Portland cements specified by JIS can be used.
【００２１】白色ポルトランドセメントを用いれば、ス
ラグ微粉末の白色性と相まって明色性を高めることがで
きる。さらに、各種の顔料を添加することによって色調
を高めることができ、景観用半たわみ性舗装としても使
用できる。If white Portland cement is used, the lightness can be enhanced in combination with the whiteness of the slag fine powder. Furthermore, the color tone can be enhanced by adding various pigments, and it can be used as a semi-flexible pavement for landscape.
【００２２】また、一部あるいは全部を超速硬性セメン
トで置き換えれば、超速硬性タイプのグラウト材料とす
ることもできる。If a part or all of the cement is replaced with a super rapid hardening cement, a super quick hardening type grout material can be obtained.
【００２３】本発明に使用するスラグ微粉末は、粗な構
造の原因となる水酸化カルシウムの結晶の少ない、スラ
グ特有の緻密な水和硬化物を形成して、セメント水和物
と一体化する。The slag fine powder used in the present invention forms a dense hydrated hardened product peculiar to slag with few calcium hydroxide crystals causing a rough structure, and is integrated with a cement hydrate. .
【００２４】スラグ微粉末を適切に含むセメント質を高
性能減水剤を使用して、混合水量を小さくして水和させ
ると毛細管空隙やブリージング空隙のない緻密で堅牢な
硬化体となる。従って、体積変化の少ない高強度で耐久
的な硬化物を得ることができる。When a cementitious material containing slag fine powder is hydrated by using a high-performance water-reducing agent to reduce the amount of mixed water, a dense and robust hardened body having no capillary voids or breathing voids is obtained. Therefore, it is possible to obtain a high-strength and durable cured product with a small volume change.
【００２５】スラグ微粉末の粉末度は、ブレーン比表面
積で６０００ｃｍ2／ｇ以上であり、好ましくは、８０
００〜９０００ｃｍ2／ｇである。粒度は３０μｍ未満
となる。スラグ粉末は、セメントと比較して水和活性が
低いため、粉末度を高めて表面積を大きくし、反応性を
高める必要がある。また、スラグ微粉末をセメント粒子
よりも細かくすることによって組織内で粒子が密充填さ
れる効果がある。ブレーン比表面積が６０００ｃｍ2／
ｇ未満では、反応性が低く水和が進行するのに長時間を
要する。１００００ｃｍ2／ｇ以上では、初期強度は高
くなるが分散性が悪いこと、また材料が高価になるなど
の問題がある。The fineness of the fine slag powder is 6000 cm 2 / g or more in terms of Blaine specific surface area, preferably 80.
It is from 00 to 9000 cm 2 / g. The particle size will be less than 30 μm. Since slag powder has lower hydration activity than cement, it is necessary to increase the fineness of powder, increase the surface area, and increase reactivity. Further, by making the slag fine powder finer than the cement particles, there is an effect that the particles are densely packed in the tissue. Blaine specific surface area is 6000 cm 2 /
When it is less than g, reactivity is low and it takes a long time for hydration to proceed. If it is 10000 cm 2 / g or more, there are problems that the initial strength is high but the dispersibility is poor and the material is expensive.
【００２６】スラグ微粉末には石膏を含むことが許容さ
れる。石膏は無水および二水石膏が好ましく、この添加
により、初期の硬化収縮やひび割れが低減される。その
添加量は、ＳＯ3換算で１０重量％以下である。Fine slag powder is allowed to contain gypsum. The gypsum is preferably anhydrous and gypsum dihydrate, and the addition thereof reduces initial curing shrinkage and cracking. The amount added is 10% by weight or less in terms of SO 3 .
【００２７】セメント質中のスラグ微粉末の配合量を増
すほど、グラウトは高温でも粘性の変化が少ない。グラ
ウト中のセメント粒子は、高温になると活性が高まり、
凝集力が増して粘性が増加するが、これに対して、スラ
グ粒子は高温でも比較的安定であるため、スラグ微粉量
が多いほど流動性は低下しない。セメント質中のスラグ
微粉末の配合量は３０〜９０重量％である。３０重量％
以下では少なすぎて、スラグ水和物の特性の効果が小さ
い。アスファルト温度が高いとき、たとえば７０℃での
注入性を得るためには、スラグ微粉末の配合量は７０〜
９０重量％が好ましく、これより少ないと粘性が大きく
なる。The greater the amount of fine slag powder mixed in the cement, the less the viscosity of grout changes at high temperatures. The cement particles in the grout become more active at high temperatures,
Although the cohesive force increases and the viscosity increases, on the other hand, since the slag particles are relatively stable even at high temperature, the fluidity does not decrease as the amount of fine slag powder increases. The compounding amount of the slag fine powder in the cement is 30 to 90% by weight. 30% by weight
Below is too little and the effect of the properties of the slag hydrate is small. When the asphalt temperature is high, for example, in order to obtain injectability at 70 ° C., the slag fine powder content is 70 to
90% by weight is preferable, and if it is less than this, the viscosity becomes large.
【００２８】本発明にはスラグ細骨材を用いていること
も特徴である。高炉スラグを細骨材に用いることは、そ
の表層部の活性を利用して境界面を反応させてペースト
部と結合、一体化させ、硬化後に高い強度を得ようとす
るものである。細骨材の混合は、セメントミルクのみと
異なり、グラウトの水和および乾燥に伴う収縮を改善
し、また舗装表面の滑り抵抗を高める効果も有する。The present invention is also characterized in that slag fine aggregate is used. The use of blast furnace slag as a fine aggregate is intended to obtain a high strength after curing by reacting the boundary surface by utilizing the activity of the surface layer portion to bond and integrate with the paste portion. The mixing of fine aggregates, unlike cement milk alone, has the effect of improving the shrinkage associated with hydration and drying of grout and also increasing the sliding resistance of the pavement surface.
【００２９】細骨材の粒度は３０μｍから０．３ｍｍの
範囲にあることが必要である。開粒度アスファルトに用
いられる砕石の粒度および空隙率にもよるが、最大寸法
が０．３ｍｍを超えると粗すぎてグラウトの流動性を低
下させ、またアスファルト混合物中の空隙を閉塞して注
入性を悪化させる。また細骨材が細かすぎれば、硬化体
の乾燥収縮が大きくなるし、同じ流動性を保つのに水量
を増さなければならないなど細骨材としての効果が低減
する。The grain size of the fine aggregate should be in the range of 30 μm to 0.3 mm. Depending on the particle size and porosity of the crushed stone used for open-grain size asphalt, if the maximum dimension exceeds 0.3 mm, it will be too coarse and the flowability of the grout will be reduced. make worse. Further, if the fine aggregate is too fine, the drying shrinkage of the hardened body becomes large, and the effect as the fine aggregate is reduced, for example, the amount of water must be increased to maintain the same fluidity.
【００３０】グラウトの流動性、材料分離、強度の面か
ら、セメント質１００重量部に対し、スラグ細骨材は５
０〜１５０重量部であり、より好ましくは５０〜１００
重量部である。５０重量部未満では骨材の効果が小さ過
ぎ、１５０重量部を超えると骨材に対するセメント質の
比率が小さくなり注入性が損なわれる。From the viewpoint of fluidity, material separation and strength of grout, slag fine aggregate is 5 parts by weight per 100 parts by weight of cement.
0 to 150 parts by weight, more preferably 50 to 100
Parts by weight. If it is less than 50 parts by weight, the effect of the aggregate is too small, and if it exceeds 150 parts by weight, the ratio of the cement material to the aggregate becomes small and the injectability is impaired.
【００３１】またスラグ細骨材を経済性の面から砕砂を
含む自然細骨材、あるいは流動性改善のためにフライア
ッシュなどで一部を置き換えることを妨げないが、上記
のスラグ細骨材の特性を考えれば、その置換割合は５０
％以下が望ましい。Although the slag fine aggregate is not prevented from being partially replaced with natural fine aggregate containing crushed sand or fly ash for improving the fluidity in view of economy, Considering the characteristics, the replacement ratio is 50
% Or less is desirable.
【００３２】本発明に用いる高性能減水剤には、ナフ
タレンスルフォン酸のホルマリン縮合物、トリメチロ
ールメラミンのモノスルフォン酸塩を縮合した水溶性ポ
リマー、高縮合トリアジン系化合物、アジピン酸の
誘導体、などが挙げられる。グラウトを混練する際、液
体の高性能減水剤を粉末グラウト材料とともに現場で混
合してもよいが、作業性上、粉末のものを粉末グラウト
材料に既混合しておくのが好ましい。The high-performance water reducing agent used in the present invention includes a formalin condensate of naphthalene sulfonic acid, a water-soluble polymer obtained by condensing a monosulfonic acid salt of trimethylolmelamine, a highly condensed triazine compound, a derivative of adipic acid, and the like. Can be mentioned. When kneading the grout, the liquid high-performance water reducing agent may be mixed with the powder grout material on site, but it is preferable to mix the powdery material with the powder grout material in advance in terms of workability.
【００３３】高性能減水剤は、グラウトの混練水量を効
果的に低減する。このことにより水和反応に寄与しない
水が空隙を形成して組織を粗にすることを防ぎ、組織を
緻密化して強度を大きく増加させるし、また体積変化を
小さくする。高性能減水剤の配合量は、セメント質１０
０重量部に対して０．２から３．０重量部が適当であ
る。０．２重量部未満では減水効果が小さ過ぎてグラウ
トの粘性が高く、また、３．０重量部を超えると僅かな
混練水量の変化で流動性が高くなり過ぎ、後述するチク
ソトロピー特性が得られない。The high-performance water reducing agent effectively reduces the kneading water amount of grout. This prevents water that does not contribute to the hydration reaction from forming voids and roughening the structure, densifying the structure and greatly increasing the strength, and reducing the volume change. The compounding amount of the high-performance water reducing agent is 10
0.2 to 3.0 parts by weight is suitable for 0 parts by weight. If it is less than 0.2 parts by weight, the water-reducing effect is too small and the viscosity of the grout is high, and if it exceeds 3.0 parts by weight, the fluidity becomes too high due to a slight change in the amount of kneading water, and the thixotropic property described later is obtained. Absent.
【００３４】グラウトの流動性状および硬化後の強度を
考慮して、混練水量は、水硬性グラウト材料１００重量
部に対し、２０〜４０重量部の間で、通常Ｐロート流下
時間１５〜２０秒の範囲に調整するのが好ましい。Considering the fluidity of the grout and the strength after hardening, the kneading water content is 20 to 40 parts by weight relative to 100 parts by weight of the hydraulic grout material, and the P funnel flow time is usually 15 to 20 seconds. It is preferable to adjust the range.
【００３５】但し、第３表の実施例２、４、および第５
表の実施例３に示すように、高温のアスファルト注入用
として、スラグ微粉末の配合を高めた場合、流下時間１
５秒を切る場合もある。これは、ポルトランドセメント
の配合が少ない分、粘性が低いことによるが、高温のア
スファルト流下中に結果的には熱によって、粘性が増
し、相殺されるか、あるいは、影響を小さくすることを
考慮している。However, Examples 2, 4 and 5 of Table 3
As shown in Example 3 in the table, when the slag fine powder content was increased for high temperature asphalt injection, the flow time was 1
It may be less than 5 seconds. This is because the viscosity of the Portland cement is low due to its low content, but in consideration of the fact that the heat increases viscosity during the flow of the asphalt, which offsets or cancels the effect. ing.
【００３６】高性能減水剤は、注入時のグラウトにチク
ソトロピー特性を付与する。高性能減水剤の機構はよく
知られるように同一分子内に疎水性と親水性の官能基両
方を有し、セメント粒子やスラグ微粉粒子の表面に吸着
して、その静電気的反発で粒子同士に分散性を与える。
一方、セメント粒子や微粉砕されたスラグ粒子は、表面
エネルギーが高く静置すると凝集力や重力の作用によっ
て疑似的な構造を造る。このような構造の破壊と再生は
可逆平衡的であり、この流体は、チクソトロピー特性を
有する。すなわち、降伏値より大きなせん断エネルギー
を与えると流動するが運動エネルギーが小さくなると塑
性が大きくなり静止する。The superplasticizer imparts thixotropic properties to the grout upon injection. As is well known, the mechanism of a high-performance water-reducing agent has both hydrophobic and hydrophilic functional groups in the same molecule, is adsorbed on the surface of cement particles or slag fine particles, and electrostatically repels them to form particles. Provides dispersibility.
On the other hand, cement particles and finely pulverized slag particles have high surface energy, and when left to stand, a pseudo structure is created by the action of cohesive force and gravity. The destruction and regeneration of such structures are reversible equilibrium and the fluid has thixotropic properties. That is, when a shearing energy larger than the yield value is applied, the material flows, but when the kinetic energy becomes small, the plasticity becomes large and the material becomes stationary.
【００３７】特に本発明に配合されているスラグ微粉末
はセメントに対して粒子径が小さくグラウトの間隙比を
小さくするためチクソトロピー特性の発現に有利に働く
と考えられる。It is considered that the slag fine powder mixed in the present invention has a small particle diameter with respect to cement and a small porosity ratio of grout, which is advantageous in developing thixotropic properties.
【００３８】本発明によるグラウトは高性能減水剤の効
果によって、注入時に高い流動性を示し、グラウトは自
己充填的にアスファルトの細部まで浸透する。一方、傾
斜地での注入ではグラウトが下方へ移動するうちに抵抗
を受け、チクソトロピカルな性質により、次第に速度を
失い静止する。従って、本発明によるグラウトは、従来
のグラウトでは注入できなかった傾斜地、例えば、勾配
が１０°程度でも平地と同様の舗装を作製できるもので
ある。Due to the effect of the superplasticizer, the grout according to the present invention exhibits a high fluidity at the time of injection, and the grout permeates into asphalt details in a self-filling manner. On the other hand, in the case of pouring on a sloping ground, the grout receives resistance as it moves downward, and due to its thixotropic nature, it gradually loses its velocity and stands still. Therefore, the grout according to the present invention is capable of producing a pavement similar to a flat ground even if the ground cannot be injected by the conventional grout, for example, even if the slope is about 10 °.
【００３９】注入性と上記のチクソトロピー特性の効果
を発揮させるために、本発明によるグラウトの流動性
は、Ｐロート流下時間で１５〜２０秒が最もよい。In order to exert the effects of the injectability and the thixotropic property, the grout according to the present invention has the best flowability of 15 to 20 seconds in P funnel flow time.
【００４０】本発明にはその他の添加材の混入も許容さ
れる。例えば、硬化したグラウトに可塑性を与えてひび
割れの発生を抑制し、アスファルト骨材との付着を良好
にするために適量のポリマーが加えられる。用いられる
ポリマーはエチレン酢酸ビニル系、ジエンゴム系、アク
リル系などである。ポリマーは液体タイプを用いて現場
で混合してもよいが、作業性を考えると粉末タイプを粉
末材料に既混合することが好適である。Other additives may be mixed in the present invention. For example, a suitable amount of polymer is added to impart plasticity to the hardened grout to prevent cracking and good adhesion to the asphalt aggregate. The polymers used are ethylene vinyl acetate type, diene rubber type, acrylic type and the like. The polymer may be mixed in situ using a liquid type, but in consideration of workability, it is preferable to premix the powder type with the powder material.
【００４１】また、硬化したグラウトの収縮によるひび
割れを防ぐために、収縮低減材を加えることもできる。
これは、カルシウムサルフォアルミネート系、アルナイ
ト系、ＩＩ型無水石膏系などである。A shrinkage-reducing material may be added to prevent cracking due to shrinkage of the hardened grout.
These are calcium sulphoaluminate type, alunite type, type II anhydrous gypsum type and the like.
【００４２】[0042]
【実施例】以下、実施例を挙げて説明する。EXAMPLES Examples will be described below.
【００４３】[0043]
【実施例１】早強ポルトランドセメント（ブレーン比表
面積４２２０ｃｍ2／ｇ、日鐵セメント株式会社製）ま
たは普通ポルトランドセメント（ブレーン比表面積３２
１０ｃｍ2／ｇ、同社製）、第２表に示す各ブレーン比
表面積に粉砕した高炉急冷スラグ（ガラス化率９９％、
塩基度１．８６、新日本製鉄室蘭製鉄所製）、粒径３０
μｍから０．３ｍｍのスラグ細骨材（新日本製鉄室蘭製
鉄所製）、アルナイト系収縮低減材パルエース（昭和鉱
業株式会社製）、酢酸ビニル―エチレン系粉末ポリマー
スミカフレックスＲＰ―１００Ｓ（住友化学工業株式会
社）、およびトリメチロールメラミンスルフォン酸系粉
末高性能減水剤シーカメント（日本シーカ株式会社製）
を第１表のように配合してグラウト材料を作製した。Example 1 Early strength Portland cement (Blaine specific surface area 4220 cm 2 / g, manufactured by Nippon Steel Cement Co., Ltd.) or ordinary Portland cement (Blaine specific surface area 32)
10 cm 2 / g, manufactured by the same company), blast furnace quenched slag crushed to each brane specific surface area shown in Table 2 (vitrification rate 99%,
Basicity 1.86, Nippon Steel Muroran Works), particle size 30
μm to 0.3 mm slag fine aggregate (manufactured by Nippon Steel Muroran Works), alunite shrinkage reducing material PALACE (manufactured by Showa Mining Co., Ltd.), vinyl acetate-ethylene powder polymer Sumikaflex RP-100S (Sumitomo Chemical Co., Ltd.) Co., Ltd.) and trimethylol melamine sulfonic acid powder high performance water reducing agent Sikament (manufactured by Nippon Sika Co., Ltd.)
Was mixed as shown in Table 1 to prepare a grout material.
【００４４】[0044]
【表１】 [Table 1]
【００４５】各グラウト材料を水／グラウト材料比３０
％の水によってハンドミキサーを用いて３分間攪拌して
グラウトを作製した。グラウトは直ちにプレパックドコ
ンクリートの注入モルタルのコンシステンシー試験用漏
斗（Ｐロート）を用いて流下時間を測定した。Ｐロート
試験後４×４×１６ｃｍの三連型枠に流し込み、硬化後
キャッピングした後に脱型し、所定材齢時まで２０±３
℃、相対湿度８５％の湿気箱内で養生した。材齢１日、
３日、７日、２８日にＪＩＳ Ｒ ５２０１セメントの
物理試験方法に準じて曲げ、圧縮試験に供し強さを求め
た。結果を第２表に示す。Each grout material has a water / grout material ratio of 30
% Water was used to stir for 3 minutes using a hand mixer to make grout. The grout immediately measured the downflow time using a consistency test funnel (P funnel) of the injection mortar of prepacked concrete. After the P funnel test, it was poured into a triple mold of 4 × 4 × 16 cm, cured, capped, and then demolded, until a predetermined material age was 20 ± 3.
It was aged in a humidity box at ℃ and relative humidity of 85%. 1 day old,
On the 3rd, 7th, and 28th, bending was carried out in accordance with the physical test method of JIS R 5201 cement and subjected to a compression test to determine the strength. The results are shown in Table 2.
【００４６】[0046]
【表２】 [Table 2]
【００４７】実施例１．１〜１．３はセメントが早強ポ
ルトランドセメントでスラグ粉末の粉末度が６０００ｃ
ｍ2／ｇ以上であるが、スラグ粉末の粉末度が４２８０
ｃｍ2／ｇである比較例１．１と比べて１〜３日までの
強さが大きい。速硬タイプでない半たわみ性舗装の施工
においては、通常、グラウトの注入後２４時間で交通開
放することが多いが、そのときに要するグラウトの強度
は圧縮強さで５０ｋｇｆ／ｃｍ2以上とされている。本
実施例ではその強度を十分満たしている。一方、実施例
１．４はセメントが普通ポルトランドセメントであり、
１日強度が低いが早期に交通開放を行わないヤードなど
の舗装に適するものである。In Examples 1.1 to 1.3, the cement was a high-strength Portland cement and the slag powder had a fineness of 6000c.
m 2 / g or more, but the fineness of the slag powder is 4280
The strength up to 1 to 3 days is greater than that of Comparative Example 1.1, which is cm 2 / g. In the construction of semi-flexible pavement that is not a quick-hardening type, usually traffic is opened 24 hours after the injection of grout, but the strength of the grout required at that time is 50 kgf / cm 2 or more in compressive strength. There is. In this embodiment, the strength is sufficiently satisfied. On the other hand, in Example 1.4, the cement is ordinary Portland cement,
It is suitable for pavements such as yards where daily strength is low but traffic is not opened early.
【００４８】また実施例では２８日の圧縮強さも６００
ｋｇｆ／ｃｍ2を超えており、比較例の４８１ｋｇｆ／
ｃｍ2と比べて大きく高強度であることがわかる。In the embodiment, the compressive strength of 28 days is 600
exceeds 48 kgf / cm 2 of the comparative example.
It can be seen that the strength is large and high as compared with cm 2 .
【００４９】[0049]
【実施例２】第１表の配合においてポルトランドセメン
トを早強ポルトランドセメントとし、粉末度が８２４０
ｃｍ2／ｇの高炉スラグ粉末を用い、セメント質のポル
トランドセメントと高炉スラグ粉末の配合を第３表のよ
うに変え、他の配合を変えずにグラウト材料を作製し
た。水／グラウト材料比３０％の水で混練し実施例１と
同様の試験を行った。結果を第４表に示す。Example 2 In the composition of Table 1, Portland cement was used as early-strength Portland cement and had a fineness of 8240.
Cemented Portland cement and blast furnace slag powder were mixed as shown in Table 3 using cm 2 / g of blast furnace slag powder, and a grout material was produced without changing other components. The same test as in Example 1 was conducted by kneading with water having a water / grout material ratio of 30%. The results are shown in Table 4.
【００５０】[0050]
【表３】 [Table 3]
【００５１】[0051]
【表４】 [Table 4]
【００５２】比較例２．１、２．２は、スラグ微粉末の
配合量が少ないが、Ｐロート流下時間が２０秒と長く粘
性の高いことを示している。また、材齢７日から２８日
までの強度の伸びが小さく、２８日強さも実施例２．１
〜２．３と比べて小さい。実施例２．４は、スラグ粉末
の重量部が多い高温度のアスファルト混合物注入向けで
あるが、２８日強さは６３９ｋｇｆ／ｃｍ2と大きい。Comparative Examples 2.1 and 2.2 show that the amount of fine slag powder is small, but the P funnel flow time is as long as 20 seconds and the viscosity is high. Further, the elongation of the strength from the age of 7 days to 28 days was small, and the 28-day strength was also as in Example 2.1.
Small compared to ~ 2.3. Example 2.4 is for high temperature asphalt mixture injection with high parts by weight of slag powder, but 28 day strength as high as 639 kgf / cm 2 .
【００５３】[0053]
【実施例３】構内ヤードの既設アスファルトコンクリー
トの上に幅員２．５ｍ、延長１０ｍで，骨材の最大粒径
１３ｍｍ、アスファルト量４．０％の開粒度アスファル
トコンクリート（以下、アスコン）を空隙率が２３％に
なるように厚さ５ｃｍで敷設した。接触式温度計でアス
コンの表面温度が７０℃になったときに第３表の実施例
２．２、２．４に示すグラウト材料を、モーター容量２
００Ｖ、３．７ＫＷ、有効混練容積９５ ｌの移動式グ
ラウトミキサーで水／グラウト材料比３０％の水量で各
々１００ｋｇを混練してグラウトを作製した。敷設した
アスコンの１／４の面積を目安に流し込んだ。ゴムレー
キを用いてアスコンの表面から押し込んだ後，振動コン
パクタを用いて更に充填を図った。アスコンの表面温度
が５０℃になったときも同様の作業を行い、半たわみ性
舗装を舗設した。[Example 3] An open-grain size asphalt concrete (hereinafter referred to as ascon) having a width of 2.5 m and an extension of 10 m, a maximum grain size of 13 mm, and an asphalt amount of 4.0% was placed on the existing asphalt concrete in the yard. Was laid to have a thickness of 5%. When the surface temperature of Ascon reached 70 ° C. with a contact type thermometer, the grout material shown in Examples 2.2 and 2.4 of Table 3 was used with a motor capacity of 2
A grout was prepared by kneading 100 kg of each with a water amount of 30% of water / grout material ratio in a moving grout mixer of 00 V, 3.7 KW, and an effective kneading volume of 95 l. The area of 1/4 of the laid Ascon was poured as a guide. After pushing in from the surface of the Ascon using a rubber rake, further filling was attempted using a vibration compactor. When the surface temperature of Ascon reached 50 ° C, the same work was performed to lay a semi-flexible pavement.
【００５４】注入後２ヵ月で、コンクリートコアカッタ
ーを用いて直径５ｃｍの注入したアスコンのコアを切り
出した。コアの周囲から観察しグラウトの浸透深さを測
定した。第５表に注入時のグラウトの練り上がり性状と
浸透深さを示す。Two months after the injection, the injected Ascon core having a diameter of 5 cm was cut out using a concrete core cutter. The penetration depth of the grout was measured by observing from the periphery of the core. Table 5 shows the kneading properties of the grout and the penetration depth at the time of injection.
【００５５】アスコン温度が７０℃のときセメント質の
重量部がセメント６０、スラグ粉末４０では、浸透深さ
が４ｃｍ程度でアスコン層の底面まで浸透していない
が、セメント１０、スラグ粉末９０の重量部では、底面
まで十分浸透しているのが認められた。When the Ascon temperature is 70 ° C., the weight part of the cement is 60 and the slag powder 40 has a penetration depth of about 4 cm and does not penetrate to the bottom of the Ascon layer, but the weight of the cement 10 and the slag powder 90. In the area, it was confirmed that the bottom surface had fully penetrated.
【００５６】[0056]
【表５】 [Table 5]
【００５７】[0057]
【実施例４】構内ヤードで１０°の勾配をもつ斜路部の
アスファルトコンクリートの上に実施例３と同じ、骨材
の最大粒径１３ｍｍ、アスファルト量４．０％、空隙率
２３％の開粒度アスコンを幅２ｍ，勾配方向長さ２．５
ｍ，厚さ５ｃｍで敷設した。アスコンの表面温度が５０
℃のときに、第３表の実施例２．２の配合のグラウト材
料１００ｋｇを水／グラウト材料比３０％の水量で移動
式グラウトミキサーを用いて混練し、実施例３と同様の
方法で注入した。第６表にグラウトの練り上がり性状を
示す。[Example 4] Same as Example 3 on the asphalt concrete having a slope of 10 ° in the yard, the same as Example 3, the maximum particle size of aggregate is 13 mm, the amount of asphalt is 4.0%, and the open particle size is 23%. Ascon 2m wide, 2.5m long in the gradient direction
It was laid with m and a thickness of 5 cm. Ascon surface temperature is 50
100 ° C., 100 kg of the grout material having the composition of Example 2.2 in Table 3 was kneaded with a moving grout mixer at a water content of 30% water / grout material ratio, and injected in the same manner as in Example 3. did. Table 6 shows the kneading properties of grout.
【００５８】[0058]
【表６】 [Table 6]
【００５９】注入後２ヵ月で，注入したアスコンの勾配
方向の上端から３０ｃｍと、下端から５０ｃｍ程の位置
からコアを切り出し、浸透状態を観察した。両方ともグ
ラウトはアスコン層の底面まで均一に浸透していた。特
に下方のコアは、上面に余剰のグラウトの上乗りが認め
られず、グラウトの上方からの流下、漏れ出しがなかっ
たものと判断された。Two months after the injection, the infiltrated state was observed by cutting out the core from the injected ascon at a position 30 cm from the upper end and 50 cm from the lower end in the gradient direction. In both cases, grout penetrated evenly to the bottom of the ascon layer. In particular, the lower core was judged not to have surplus grouting on the upper surface, and there was no leakage or leakage from above the grout.
【００６０】[0060]
【発明の効果】以上説明したように本発明による舗装用
水硬性グラウト材料によるグラウトは、良好な注入性を
有していて、アスファルト混合物の温度が高くとも流動
性を損なわずに細部まで充填することができ、かつ傾斜
部でも下方への漏れ出しがなく注入できるものである。
また、硬化後は、スラグ微粉末の効果により高い強度と
耐久性を発揮し、従来の半たわみ性舗装のグラウトの機
能を大きく改善するものである。Industrial Applicability As described above, the grout of the hydraulic paving material for pavement according to the present invention has a good pouring property, and even if the temperature of the asphalt mixture is high, the grout can be filled in the details without impairing the fluidity. In addition, the injection can be performed without causing downward leakage even at the inclined portion.
Further, after curing, the effect of fine slag powder exerts high strength and durability, and the function of the grout of the conventional semi-flexible pavement is greatly improved.
───────────────────────────────────────────────────── 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 Ｃ０４Ｂ 24:30 Ｃ 22:14） Ａ 103:30 103:60 111:70 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical indication C04B 24:30 C 22:14) A 103: 30 103: 60 111: 70
Claims (3)
と、粉末度がブレーン比表面積（ｃｍ2／ｇ）で６００
０以上の高炉スラグ微粉末９０〜３０重量部からなるセ
メント質１００重量部と、粒度が３０μｍ〜０．３ｍｍ
の高炉スラグ細骨材５０〜１５０重量部および高性能減
水剤０．２〜３．０重量部からなることを特徴とする舗
装用水硬性グラウト材料。1. Portland cement with 10 to 70 parts by weight and a fineness of 600 in a Blaine specific surface area (cm 2 / g).
100 parts by weight of cementitious material consisting of 90 to 30 parts by weight of blast furnace slag fine powder of 0 or more and particle size of 30 μm to 0.3 mm
Hydraulic grouting material for pavement, which comprises 50 to 150 parts by weight of the blast furnace slag fine aggregate and 0.2 to 3.0 parts by weight of a high-performance water reducing agent.
料１００重量部を２０〜４０重量部の水で混練すること
により得られる半たわみ性舗装用グラウト。2. A semi-flexible paving grout obtained by kneading 100 parts by weight of the paving hydraulic grout material according to claim 1 with 20 to 40 parts by weight of water.
と、粉末度がブレーン比表面積（ｃｍ2／ｇ）で６００
０以上の高炉スラグ微粉末９０〜７０重量部からなるセ
メント質１００重量部と、粒度３０μｍ〜０．３ｍｍの
高炉スラグ細骨材５０〜１５０重量部および高性能減水
剤０．２〜３．０重量部からなる舗装用水硬性グラウト
材料１００重量部を２０〜４０重量部の水で混練するこ
とにより得られる半たわみ性舗装用グラウト。3. Portland cement 10 to 30 parts by weight, and fineness of Blaine specific surface area (cm 2 / g) of 600
100 parts by weight of cement material consisting of 90 to 70 parts by weight of blast furnace slag fine powder of 0 or more, 50 to 150 parts by weight of blast furnace slag fine aggregate having a particle size of 30 μm to 0.3 mm, and high performance water reducing agent 0.2 to 3.0 A semi-flexible paving grout obtained by kneading 100 parts by weight of a paving hydraulic grout material consisting of parts by weight with 20 to 40 parts by weight of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11740994A JPH07300358A (en) | 1994-05-09 | 1994-05-09 | Hydraulic grout material for paving and grout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11740994A JPH07300358A (en) | 1994-05-09 | 1994-05-09 | Hydraulic grout material for paving and grout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07300358A true JPH07300358A (en) | 1995-11-14 |
Family
ID=14710939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11740994A Pending JPH07300358A (en) | 1994-05-09 | 1994-05-09 | Hydraulic grout material for paving and grout |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07300358A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0971774A (en) * | 1995-06-27 | 1997-03-18 | Sumitomo Osaka Cement Co Ltd | Grout |
| JPH09208290A (en) * | 1996-01-31 | 1997-08-12 | Ono Kogyo Kk | Paving material and paving block using the same |
| JP2002274966A (en) * | 2001-03-12 | 2002-09-25 | Sumitomo Osaka Cement Co Ltd | Porous concrete and method of producing the same |
| KR20030003965A (en) * | 2001-07-04 | 2003-01-14 | 한국건설기술연구원 | Manufacturing methods of permeable pavement and block using the water-quenched blast furnace slag, pavement method using the same |
| JP2003147716A (en) * | 2001-11-13 | 2003-05-21 | Kawasaki Steel Corp | Pavement provided with water permeability, water draining capability and water retentivity and its construction method |
| JP2007009693A (en) * | 2006-10-23 | 2007-01-18 | Jfe Steel Kk | Pavement and paving method |
| JP2008081990A (en) * | 2006-09-27 | 2008-04-10 | Kajima Corp | Shield tunnel construction method |
| CN100445469C (en) * | 2004-03-30 | 2008-12-24 | 株式会社特弓 | High-strength concrete prefabricated piece having both water permeability and water-retaining property |
| JP2010001208A (en) * | 2008-05-19 | 2010-01-07 | Katsunori Ayano | Composition for mortar or concrete, formed article formed of it and method of repair for mortar or concrete |
| CN104909661A (en) * | 2015-06-02 | 2015-09-16 | 安徽朗凯奇防水科技股份有限公司 | Glue for renovating ceramic tiles |
| CN110627459A (en) * | 2019-10-12 | 2019-12-31 | 武汉武新新型建材股份有限公司 | Green high-performance non-shrinkage grouting material and preparation method thereof |
-
1994
- 1994-05-09 JP JP11740994A patent/JPH07300358A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0971774A (en) * | 1995-06-27 | 1997-03-18 | Sumitomo Osaka Cement Co Ltd | Grout |
| JPH09208290A (en) * | 1996-01-31 | 1997-08-12 | Ono Kogyo Kk | Paving material and paving block using the same |
| JP2002274966A (en) * | 2001-03-12 | 2002-09-25 | Sumitomo Osaka Cement Co Ltd | Porous concrete and method of producing the same |
| KR20030003965A (en) * | 2001-07-04 | 2003-01-14 | 한국건설기술연구원 | Manufacturing methods of permeable pavement and block using the water-quenched blast furnace slag, pavement method using the same |
| JP2003147716A (en) * | 2001-11-13 | 2003-05-21 | Kawasaki Steel Corp | Pavement provided with water permeability, water draining capability and water retentivity and its construction method |
| CN100445469C (en) * | 2004-03-30 | 2008-12-24 | 株式会社特弓 | High-strength concrete prefabricated piece having both water permeability and water-retaining property |
| JP2008081990A (en) * | 2006-09-27 | 2008-04-10 | Kajima Corp | Shield tunnel construction method |
| JP2007009693A (en) * | 2006-10-23 | 2007-01-18 | Jfe Steel Kk | Pavement and paving method |
| JP2010001208A (en) * | 2008-05-19 | 2010-01-07 | Katsunori Ayano | Composition for mortar or concrete, formed article formed of it and method of repair for mortar or concrete |
| CN104909661A (en) * | 2015-06-02 | 2015-09-16 | 安徽朗凯奇防水科技股份有限公司 | Glue for renovating ceramic tiles |
| CN110627459A (en) * | 2019-10-12 | 2019-12-31 | 武汉武新新型建材股份有限公司 | Green high-performance non-shrinkage grouting material and preparation method thereof |
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