JPH06293549A - Grout mortar composition - Google Patents

Grout mortar composition

Info

Publication number
JPH06293549A
JPH06293549A JP8071893A JP8071893A JPH06293549A JP H06293549 A JPH06293549 A JP H06293549A JP 8071893 A JP8071893 A JP 8071893A JP 8071893 A JP8071893 A JP 8071893A JP H06293549 A JPH06293549 A JP H06293549A
Authority
JP
Japan
Prior art keywords
pts
cement
water
grout
component
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
Application number
JP8071893A
Other languages
Japanese (ja)
Inventor
Hideaki Gomi
秀明 五味
Akira Saito
彰 斉藤
Mitsuaki Ono
光昭 小野
Original Assignee
Denki Kagaku Kogyo Kk
電気化学工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denki Kagaku Kogyo Kk, 電気化学工業株式会社 filed Critical Denki Kagaku Kogyo Kk
Priority to JP8071893A priority Critical patent/JPH06293549A/en
Publication of JPH06293549A publication Critical patent/JPH06293549A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve flowability, non-separability of the component materials, compression strength and bond strength of a grout mortar composition by using cement, a superfine powder, an expansive admixture, a high performance water reducing agent and heavy-weight aggregate as the components of the composition. CONSTITUTION:The cement (A) such as various kinds of portland cement, various kinds of blended cement 3 to 40 pts.wt. of the superfine powder (B) which is not easily soluble in water and has <=1mum average particle size such as silica dust (fumed silica), 15 pts.wt. of the expansive admixture (C) such as a calcium sulfonate based or quick lime based expansive admixture 0.1 to 5 pts.wt. of the high performance water reducing agent (D) consisting essentially of a surface active agent, 50 to 250 pts.wt. of the nearly spherical heavy-weight aggregate (E) having >=3.0 specific gravity and <=3mm grain size such as iron grains (7 to 8 specific gravity), and 20 to 35 pts.wt. of water, based on 100 pts.wt. of the total amount of binders consisting of the component (A), (B) and (C) are mixed with each other. The mixing is performed by using a mixer or a premix type mixing method, in which the respective component materials are dry-blended together and thereafter water is added to the dry-blend, or by dissolving the component (D) into water to be mixed and then mixing the resulting solution with the other component materials.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、土木・建築分野で使用
されるグラウトモルタル組成物に関する。なお、本発明
におけるモルタルとは、モルタル又はコンクリートを総
称するものである。
FIELD OF THE INVENTION The present invention relates to a grout mortar composition used in the field of civil engineering and construction. The mortar in the present invention is a generic term for mortar or concrete.

【0002】[0002]

【従来の技術とその課題】土木・建築工事をはじめ、鉱
山等における工事において、コンクリート構造物の細か
い空隙、トンネルの覆工背面と地山との間の空隙、鉄筋
スリーブ内空隙、あるいは、PC鋼材用シースとPC鋼材と
の空隙等にモルタルやセメントペーストを充填するグラ
ウト工事が行われており、各種のグラウト材が開発さ
れ、広範囲に実用化されている。
[Prior art and its problems] In civil engineering and construction work, construction work in mines, etc., fine voids in concrete structures, voids between the back of tunnel linings and the ground, voids in rebar sleeves, or PC Grouting work is being carried out by filling mortar and cement paste in the gaps between the steel sheath and PC steel, and various grout materials have been developed and put to practical use in a wide range.

【0003】さらに、近年、構造物となるコンクリート
の品質が高性能化、高品質化し、構造体そのものが複雑
化するにつれて、グラウト材に要求される用途や性能が
多様化するとともに高度化している。
Further, in recent years, as the quality of concrete as a structure has become higher in performance and quality, and the structure itself has become more complicated, the applications and performance required for grout materials have become more diverse and sophisticated. .

【0004】グラウト材には、PCグラウト、プレパック
ドコンクリート用グラウト、ダム継ぎ目グラウト、トン
ネルやシールドの裏込めグラウト、プレキャスト用グラ
ウト、構造物の補修・補強注入グラウト、鉄筋継手グラ
ウト、橋梁の支承下グラウト、機械台座下グラウト、軌
道スラブ下グラウト、及び原子力発電所格納容器下グラ
ウト等のように、従来から有用されてきたものの他に、
近年では、斜張橋の斜材グラウト、鋼材継手グラウト、
RM構造用グラウト、舗装版下グラウト、グラウンドアン
カー用グラウト、及び貯蔵ピット用グラウト等といった
新しい分野においても多種多様のグラウト材が活用され
ている。
Grout materials include PC grout, grout for pre-packed concrete, dam joint grout, backfill grout for tunnels and shields, precast grout, structure repair / reinforcement injection grout, rebar joint grout, under bridge support. In addition to those that have been conventionally useful, such as grouts, under-base grouting, under-slab grouting, and under-container grouts for nuclear power plants,
In recent years, cable-stayed bridge diagonal grouts, steel joint grouts,
A wide variety of grout materials are also used in new fields such as grouts for RM structures, grouts under paving, ground anchors, and storage pits.

【0005】前記のグラウト材の中で、鉄筋継手グラウ
トは、建材の改良や進歩に伴う建物の高層化、技能工不
足による建設工事の省力化などを目的に、プレキャスト
鉄筋コンクリート部材を現場で接合する工法で、継手用
スリーブを用い、その空隙部にグラウト材としてセメン
ト系無収縮グラウト材を充填する方法が一般に使われて
いる(充填材の品質評価研究委員会中間報告書、1992.12
日本コンクリート工学協会発行)。
Among the above-mentioned grout materials, the reinforced joint grout joins precast reinforced concrete members on site for the purpose of improving the construction materials and increasing the height of the building due to progress and labor saving of construction work due to lack of skilled workers. In the method of construction, a method of using a sleeve for joints and filling the voids with a cement-based non-shrink grout material as a grout material is generally used (interim report of the quality evaluation research committee of the filler, 1992.12).
Published by Japan Concrete Institute).

【0006】しかしながら、セメント系無収縮グラウト
材は、圧縮強度が700kgf/cm2程度で、かつ、硬化後の膨
張量も小さく、充填したグラウトと、異形鉄筋や継手用
スリーブとの付着力の増大も期待できず、信頼性のある
継手としての役割を果たせなくなるという課題があっ
た。
[0006] However, the cement-based non-shrink grout has a compressive strength of about 700 kgf / cm 2 and a small expansion amount after hardening, and the adhesive force between the filled grout and the deformed rebar or the joint sleeve is increased. However, there was a problem that they could not fulfill their role as reliable joints.

【0007】本発明者は、前記課題を解決すべく種々検
討を重ねた結果、特定の材料を使用することによって、
例えば、鉄筋コンクリート部材接合用異形鉄筋の継手用
スリーブの空隙部に、充填されやすく、かつ、硬化後は
高圧縮強度や高付着強度が得られるとの知見を得て本発
明を完成するに至った。
The present inventor has conducted various studies to solve the above-mentioned problems, and as a result, by using a specific material,
For example, the present invention has been completed based on the finding that it is easy to fill the void portion of the joint sleeve of the deformed rebar for joining reinforced concrete members, and that high compressive strength and high adhesive strength can be obtained after curing. .

【0008】[0008]

【課題を解決するための手段】即ち、本発明は、セメン
ト、超微粉、膨張材、高性能減水剤、及び重量骨材を含
有してなるグラウトモルタル組成物である。
That is, the present invention is a grout mortar composition containing cement, ultrafine powder, an expanding material, a high-performance water reducing agent, and a heavy aggregate.

【0009】以下、本発明を詳しく説明する。The present invention will be described in detail below.

【0010】本発明に係るセメントとしては、普通、早
強、及び超早強等の各種ポルトランドセメントが一般的
に用いられるが、これらポルトランドセメントに、フラ
イアッシュ、高炉スラグ、又はシリカを混合した各種混
合セメントや、中庸熱ポルトランドセメント、並びに、
マスコンクリート用低発熱セメント等の使用も可能であ
る。
As the cement according to the present invention, various kinds of portland cement such as normal, early strength, and ultra-early strength are generally used. Various kinds of fly ash, blast furnace slag, or silica are mixed with these portland cements. Mixed cement, moderate heat Portland cement, and
It is also possible to use low heat-generating cement for mass concrete.

【0011】また、例えば、日鐵セメント社製商品名
「日鐵コロイド」や「日鐵スーパーファイン」などのよう
に、それらセメントを微粉にした微粉セメント、さらに
は、高炉スラグとアルカリ刺激剤との混合物も本発明の
セメントとして使用可能である。
[0011] In addition, for example, such as "Nippon Steel Colloid" and "Nippon Steel Super Fine" manufactured by Nippon Steel Cement Co., Ltd., fine cement obtained by making these cements into fine powder, and further, blast furnace slag and an alkali stimulant. Mixtures of can also be used as the cement of the present invention.

【0012】本発明に係る超微粉は、平均粒径1μ以下
の粉末であり、成分的な制限は特にないが、水に易溶性
のものは適当でない。具体的には、シリコン、シリコン
合金、又はジルコニアを製造する際に副生するシリカダ
スト(シリカヒューム)やシリカ質ダスト、フライアッシ
ュ、炭酸カルシウム、シリカゲル、オパール質硅石、酸
化チタン、並びに、酸化アンモニウム等の使用も可能で
あり、これらのうち、シリカダスト(シリカヒューム)や
シリカ質ダストの使用が好ましい。
The ultrafine powder according to the present invention is a powder having an average particle diameter of 1 μm or less, and there is no particular limitation on the components, but those which are easily soluble in water are not suitable. Specifically, silica, silicon alloys, or silica dust (silica fume) by-produced when manufacturing zirconia, silica dust, fly ash, calcium carbonate, silica gel, opal silica, titanium oxide, and ammonium oxide. It is also possible to use, for example, and of these, it is preferable to use silica dust (silica fume) or siliceous dust.

【0013】超微粉の使用量は、セメント、超微粉、及
び膨張材からなる結合材100重量部に対して、3〜40重
量部が好ましく、混練物の流動性や成形性の面から、5
〜30重量部がより好ましい。40重量部を越えると結合材
を混練することが困難となり、かつ、強度の発現が不十
分となり、3重量部未満では強度の発現が不十分となる
傾向がある。
The amount of the ultrafine powder used is preferably 3 to 40 parts by weight with respect to 100 parts by weight of the binder composed of cement, ultrafine powder and expansive material. From the viewpoint of fluidity and moldability of the kneaded product, 5
-30 parts by weight is more preferred. If it exceeds 40 parts by weight, it will be difficult to knead the binder, and strength development will be insufficient, and if it is less than 3 parts by weight, strength development will tend to be insufficient.

【0014】本発明に係る膨張材は、継手用スリーブや
異形鉄筋との密着性、及び収縮低減による付着性向上に
有効である。
The expansive material according to the present invention is effective in improving the adhesion to the joint sleeve and the deformed reinforcing bar, and improving the adhesion by reducing the shrinkage.

【0015】膨張材としては、例えば、カルシウムサル
ホアルミネート系、焼成CaO等の生石灰系、セッコウ
系、及び生石灰−セッコウ系等の使用が可能である。
As the expansive material, for example, calcium sulphoaluminate type, quick lime type such as calcined CaO, gypsum type, and quick lime-gypsum type can be used.

【0016】膨張材の使用量は、結合材100重量部に対
して、15重量部以下が好ましく、2〜10重量部がより好
ましい。15重量部を越えると膨張量が過大となる傾向が
ある。
The amount of the expanding material used is preferably 15 parts by weight or less, more preferably 2 to 10 parts by weight, based on 100 parts by weight of the binder. If it exceeds 15 parts by weight, the amount of expansion tends to be excessive.

【0017】本発明に係る高性能減水剤は、セメントに
多量添加しても凝結の遅延性や過度の空気連行を伴わな
いで分散能力が大きいもので、界面活性剤の使用が可能
である。具体的には、メラミンスルホン酸ホルムアルデ
ヒド縮合物の塩、ナフタリンスルホン酸ホルムアルデヒ
ド縮合物の塩、高分子量リグニンスルホン酸塩、及びポ
リカルボン酸塩等を主成分とするものが挙げられる。
The high-performance water-reducing agent according to the present invention has a large dispersibility without delay of setting or excessive air entrainment even when added in a large amount to cement, and a surfactant can be used. Specific examples include salts of melamine sulfonic acid formaldehyde condensate, salts of naphthalene sulfonic acid formaldehyde condensate, high molecular weight lignin sulfonate, and polycarboxylate.

【0018】高性能減水剤の使用量は、結合材100重量
部に対して、0.1〜5重量部が好ましい。0.1重量部未満
ではグラウトモルタルの流動性が悪くなり、5重量部を
越えて使用するとグラウトモルタルの空気連行性が多く
なり、材料分離となる傾向がある。
The amount of the high-performance water reducing agent used is preferably 0.1 to 5 parts by weight with respect to 100 parts by weight of the binder. If it is less than 0.1 part by weight, the fluidity of the grout mortar will be poor, and if it is used in excess of 5 parts by weight, the grout mortar will have a high air entrainment property, and material separation will tend to occur.

【0019】本発明に係る重量骨材は、比重が3.0以上
であれば、特に制限されるものではなく、例えば、鉄粒
(比重7〜8)、磁鉄鉱(比重4.5〜5.2)、砂鉄(比重4〜
5)、赤鉄鉱(比重4〜5.3)、褐鉄鉱(比重2.7〜4)、バ
ライト(重晶石、比重4〜4.7)、転炉風砕スラグ(比重2.
7〜3.5)、及び鋼繊維(比重7〜8)等の使用が可能であ
る。
The heavy aggregate according to the present invention is not particularly limited as long as the specific gravity is 3.0 or more.
(Specific gravity 7-8), magnetite (specific gravity 4.5-5.2), sand iron (specific gravity 4-
5), hematite (specific gravity 4-5.3), limonite (specific gravity 2.7-4), barite (barite, specific gravity 4-4.7), converter-furnace slag (specific gravity 2.
7-3.5), steel fiber (specific gravity 7-8) and the like can be used.

【0020】重量骨材の形状は、流動性や作業性などの
面から球形に近いものがよく、その粒径は3mm以下が好
ましく、平均粒径1〜2mmのものがより好ましい。
The shape of the heavy aggregate is preferably close to a sphere from the viewpoint of fluidity and workability, and the particle size thereof is preferably 3 mm or less, more preferably 1 to 2 mm.

【0021】重量骨材の使用量は、結合材100重量部に
対して、50〜250重量部が好ましい。250重量部を越える
とグラウトモルタルの材料分離が激しくなり、50重量部
未満ではグラウトモルタル中のセメント量が多くなり、
発熱が大きくなるので好ましくない。
The amount of the heavy aggregate used is preferably 50 to 250 parts by weight with respect to 100 parts by weight of the binder. If it exceeds 250 parts by weight, the material separation of grout mortar becomes severe, and if it is less than 50 parts by weight, the amount of cement in the grout mortar increases,
This is not preferable because the heat generation increases.

【0022】本発明で使用する水の量は、結合材100重
量部に対して、20〜35重量部が好ましい。20重量部未満
では流動性が低下し、35重量部を越えると強度低下が起
こる傾向がある。
The amount of water used in the present invention is preferably 20 to 35 parts by weight with respect to 100 parts by weight of the binder. If it is less than 20 parts by weight, the fluidity tends to decrease, and if it exceeds 35 parts by weight, the strength tends to decrease.

【0023】本発明において、各材料の混合方法は、特
に制限されるものではなく、通常の混合機を使用するこ
とが可能である。また、各材料をドライブレンドして、
あとから水と混合するプレミックスタイプの使用も可能
であり、高性能減水剤を混練水に溶解して混合する方法
も十分可能である。
In the present invention, the method of mixing the respective materials is not particularly limited, and an ordinary mixer can be used. Also, dry blend each material,
It is also possible to use a premix type of mixing with water later, and a method of dissolving the high-performance water reducing agent in kneading water and mixing is also sufficiently possible.

【0024】[0024]

【実施例】以下、実施例に基づいて、本発明をさらに説
明する。
The present invention will be further described below based on examples.

【0025】実施例1 実験No.1- 1以外の表1に示す配合に、高性能減水剤
を、さらに2重量部配合してモルタルを調製し、材令28
日におけるモルタルの圧縮強度と鉄筋の付着強度の測定
を行った。結果を表1に併記する。試験方法や使用材料
は以下のとおりである。
Example 1 A mortar was prepared by adding 2 parts by weight of a high-performance water reducing agent to the formulations shown in Table 1 other than Experiment No. 1-1 to prepare a mortar.
The compressive strength of the mortar and the adhesive strength of the reinforcing bars were measured on the day. The results are also shown in Table 1. The test methods and materials used are as follows.

【0026】<試験方法> 圧縮強度:JIS A 1108に準じて測定した。φ5×10cmの
円柱供試体を作成し、1日後で脱型し、材令28日まで20
℃の水中養生とした。 付着強度:埋め込み深さ16cmのφ19cmの丸鋼の引抜時の
鉄筋との付着強度を求めた。養生は20℃封緘養生とし
た。
<Test method> Compressive strength: Measured according to JIS A 1108. Create a φ5 × 10 cm cylinder specimen, remove it from the mold one day later, and age 20 until 20 days
It was cured in water at ℃. Adhesion strength: The adhesion strength of the round steel of φ19 cm with a 16 cm embedded depth to the reinforcing bar during drawing was determined. The curing was 20 ° C sealed curing.

【0027】<使用材料> セメント:電気化学工業社製普通ポルトランドセメント 超微粉 :日本重化学工業社製フェロシリコン製造時の
シリカダスト、平均粒径0.1μ 膨張材 :電気化学工業社製商品名「CSA#20」、主成分カ
ルシウムサルホアルミネート 高性能減水剤:電気化学工業社製商品名「FT-500」、主成
分アルキルナフタレンスルホン酸ホルムアルデヒド縮合
物の塩 重量骨材:日本磁力選鋼社製商品名「NJサンド」、比重3.
1 水 :水道水
<Materials used> Cement: Ordinary Portland cement manufactured by Denki Kagaku Kogyo Co., Ltd. Ultra fine powder: Silica dust produced by Ferrosilicon manufactured by Nippon Heavy Chemical Industry Co., Ltd., average particle size 0.1μ Expanding material: Denka Kagaku Kogyo's trade name "CSA"# 20 ", main component calcium sulfaluminate High-performance water reducing agent: Denki Kagaku Kogyo Co., Ltd. trade name" FT-500 ", main component alkylnaphthalene sulfonic acid formaldehyde condensate salt Weight Aggregate: Nippon Magnetic Select Steel Co., Ltd. product Name `` NJ Sand '', specific gravity 3.
1 Water: Tap water

【0028】[0028]

【表1】 [Table 1]

【0029】表1から明らかなように、本発明のグラウ
トモルタル組成物を使用すると、通常のセメント系無収
縮グラウト材と同等の流動性が得られ、例えば、プレキ
ャスト鉄筋コンクリート部材接合用異形鉄筋の継手用ス
リーブの空隙部に容易に充填され、かつ、硬化後は高圧
縮強度や高付着強度が得られた。なお、実験No.1-12
は、グラウトモルタル中のセメント量が多いために、セ
メントの水和発熱が高くなった。
As is clear from Table 1, when the grout mortar composition of the present invention is used, the same fluidity as that of a normal cement-based non-shrink grout material can be obtained. For example, a joint of deformed rebar for joining precast reinforced concrete members. The voids of the sleeve were easily filled, and after curing, high compressive strength and high adhesive strength were obtained. Experiment No.1-12
, The heat of hydration of the cement was high due to the large amount of cement in the grout mortar.

【0030】[0030]

【発明の効果】本発明の膨張性高強度グラウトモルタル
を使用すると、流動性に優れる、材料分離がない、高圧
縮強度で高付着強度である等の効果を奏するものであ
る。そのため、プレキャスト鉄筋コンクリート部材接合
用異形鉄筋の継手用スリーブの空隙部に充填するグラウ
トモルタルとして優れた品質のものが得られる。
EFFECTS OF THE INVENTION When the expansive high-strength grout mortar of the present invention is used, such effects as excellent fluidity, no material separation, high compressive strength and high adhesive strength are exhibited. Therefore, it is possible to obtain a grout mortar having an excellent quality as the grout mortar to be filled in the void portion of the joint sleeve of the deformed rebar for joining precast reinforced concrete members.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 C04B 14:48) Z 2102−4G ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display area C04B 14:48) Z 2102-4G

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 セメント、超微粉、膨張材、高性能減水
剤、及び重量骨材を含有してなるグラウトモルタル組成
物。
1. A grout mortar composition comprising cement, ultrafine powder, an expanding material, a high-performance water reducing agent, and a heavy aggregate.
JP8071893A 1993-04-07 1993-04-07 Grout mortar composition Pending JPH06293549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8071893A JPH06293549A (en) 1993-04-07 1993-04-07 Grout mortar composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8071893A JPH06293549A (en) 1993-04-07 1993-04-07 Grout mortar composition

Publications (1)

Publication Number Publication Date
JPH06293549A true JPH06293549A (en) 1994-10-21

Family

ID=13726137

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Cited By (11)

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JP2001199754A (en) * 1999-11-12 2001-07-24 Onoda Co Mortar composition
JP2001302302A (en) * 2000-04-14 2001-10-31 Denki Kagaku Kogyo Kk Admixture and cementitious material for heavyweight grouting mortar and heavyweight grouting mortar
JP2002321961A (en) * 2001-04-27 2002-11-08 Taiheiyo Material Kk Heavy weight mortar
JP2002362957A (en) * 2001-06-12 2002-12-18 Mitsubishi Materials Corp Low dust type non-shrink grouting material
WO2008044361A1 (en) * 2006-10-13 2008-04-17 Denki Kagaku Kogyo Kabushiki Kaisha Filler for reinforcement joint and method of reinforcement joint filling operation using the same
JP2008094679A (en) * 2006-10-13 2008-04-24 Denki Kagaku Kogyo Kk Grout composition and grout material using the same
JP2008094675A (en) * 2006-10-13 2008-04-24 Denki Kagaku Kogyo Kk Cement mortar composition for grout
JP2008094676A (en) * 2006-10-13 2008-04-24 Denki Kagaku Kogyo Kk Cement mortar composition
JP2008266132A (en) * 2007-03-27 2008-11-06 Taiheiyo Cement Corp Concrete composition and concrete hardened body
JP2010150073A (en) * 2008-12-25 2010-07-08 Denki Kagaku Kogyo Kk Cement mortar
JP2010150072A (en) * 2008-12-25 2010-07-08 Denki Kagaku Kogyo Kk Filler composition for reinforcement joint, filler for reinforcement joint using the same and method of filling reinforcement joint by using the filler

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001199754A (en) * 1999-11-12 2001-07-24 Onoda Co Mortar composition
JP2001302302A (en) * 2000-04-14 2001-10-31 Denki Kagaku Kogyo Kk Admixture and cementitious material for heavyweight grouting mortar and heavyweight grouting mortar
JP4615669B2 (en) * 2000-04-14 2011-01-19 電気化学工業株式会社 Admixture and binder for heavy grout mortar and heavy grout mortar
JP2002321961A (en) * 2001-04-27 2002-11-08 Taiheiyo Material Kk Heavy weight mortar
JP2002362957A (en) * 2001-06-12 2002-12-18 Mitsubishi Materials Corp Low dust type non-shrink grouting material
CN104481146A (en) * 2006-10-13 2015-04-01 电气化学工业株式会社 Construction method of filling reinforcing joint
JP2008094674A (en) * 2006-10-13 2008-04-24 Denki Kagaku Kogyo Kk Filler for reinforcement and method of filling reinforcement using the same
JP2008094675A (en) * 2006-10-13 2008-04-24 Denki Kagaku Kogyo Kk Cement mortar composition for grout
JP2008094676A (en) * 2006-10-13 2008-04-24 Denki Kagaku Kogyo Kk Cement mortar composition
JP2008094679A (en) * 2006-10-13 2008-04-24 Denki Kagaku Kogyo Kk Grout composition and grout material using the same
KR100917117B1 (en) * 2006-10-13 2009-09-11 덴끼 가가꾸 고교 가부시키가이샤 Filler for Iron reinforcing rod joint and construction method for filling-up of iron reinforcing rod joint using the same
TWI409240B (en) * 2006-10-13 2013-09-21 Denki Kagaku Kogyo Kk Reinforcing Bar for Reinforcement and Construction Method for Reinforcing Bar with Reinforcement
US8080104B2 (en) 2006-10-13 2011-12-20 Denki Kagaku Kogyo Kabushiki Kaisha Filling material for reinforcing joint and construction method of filling reinforcing joint
JP4538438B2 (en) * 2006-10-13 2010-09-08 電気化学工業株式会社 Grout composition and grout material using the same
WO2008044361A1 (en) * 2006-10-13 2008-04-17 Denki Kagaku Kogyo Kabushiki Kaisha Filler for reinforcement joint and method of reinforcement joint filling operation using the same
JP2008266132A (en) * 2007-03-27 2008-11-06 Taiheiyo Cement Corp Concrete composition and concrete hardened body
JP2010150072A (en) * 2008-12-25 2010-07-08 Denki Kagaku Kogyo Kk Filler composition for reinforcement joint, filler for reinforcement joint using the same and method of filling reinforcement joint by using the filler
JP2010150073A (en) * 2008-12-25 2010-07-08 Denki Kagaku Kogyo Kk Cement mortar

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