JPH08208295A - Cement additive, cement hardening composition and hardened cement - Google Patents
Cement additive, cement hardening composition and hardened cementInfo
- Publication number
- JPH08208295A JPH08208295A JP32803995A JP32803995A JPH08208295A JP H08208295 A JPH08208295 A JP H08208295A JP 32803995 A JP32803995 A JP 32803995A JP 32803995 A JP32803995 A JP 32803995A JP H08208295 A JPH08208295 A JP H08208295A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- weight
- additive
- water
- parts
- 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
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0053—Water-soluble polymers
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
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]
【発明の属する技術分野】本発明は、セメント用添加
剤、それをセメントに添加したセメント硬化用組成物、
さらにはセメント硬化物に関する。更に詳しくは、セメ
ントに添加することによりセメント硬化用組成物に高流
動性を付与することができ、更に気中養生させても機械
的強度に優れる硬化物が得られるセメント添加剤、さら
には当該セメント硬化用組成物およびセメント硬化物に
関する。TECHNICAL FIELD The present invention relates to an additive for cement, a composition for hardening cement which is obtained by adding the additive to cement.
Furthermore, it relates to a hardened cement product. More specifically, it is possible to impart high fluidity to the composition for cement hardening by adding it to cement, and a cement additive capable of obtaining a hardened product having excellent mechanical strength even when cured in air, and further The present invention relates to a cement hardening composition and a cement hardening product.
【0002】[0002]
【従来の技術】セメントを用いてコンクリート、モルタ
ルなどを製造する際には、混練および硬化のために水が
添加される。ここにおいて混練時に添加水量を多くすれ
ば混練組成物の流動性が増加し施工時の操作性が向上す
るが、組成物の固化時の収縮量が大きくなり、固化時間
も延長する。そこで、混練組成物への添加水量を減少さ
せ、かつ作業性を確保すること、すなわち混練組成物の
流動性を維持させるという相反する特性が要求される。
この様な混練組成物の高流動や硬化物の高強度が達成さ
れる添加剤として種々の高性能減水剤が提案されている
が、メラミン系化合物やフェノール系化合物もそれらの
一例である。2. Description of the Related Art When cement is used to produce concrete, mortar, etc., water is added for kneading and hardening. Here, if the amount of water added during kneading is increased, the fluidity of the kneaded composition increases and the operability during construction is improved, but the amount of shrinkage during solidification of the composition increases and the solidification time also extends. Therefore, the contradictory characteristics of reducing the amount of water added to the kneading composition and ensuring workability, that is, maintaining the fluidity of the kneading composition are required.
Various high-performance water-reducing agents have been proposed as additives that can achieve high fluidity of such a kneaded composition and high strength of a cured product, but melamine compounds and phenol compounds are also examples thereof.
【0003】一方、特開昭60−67144号公報に
は、疎水性のエポキシ樹脂と硬化剤からなるエポキシ樹
脂モルタルをまだ固まらないセメントコンクリートに積
層し、加圧成型するコンクリートブロックの製法が開示
されている。On the other hand, Japanese Unexamined Patent Publication No. 60-67144 discloses a method for producing a concrete block in which an epoxy resin mortar composed of a hydrophobic epoxy resin and a curing agent is laminated on cement concrete which is not yet solidified and pressure-molded. ing.
【0004】[0004]
【発明が解決しようとする課題】前記のような減水剤を
添加したモルタルやコンクリート硬化物は一般に脆いと
いう欠点があり、この点の改良が求められていた。また
このようなコンクリート組成物やモルタル組成物は気中
養生すると、得られる硬化物は水中養生するよりも機械
的強度、例えば曲げ強度が低いという傾向にあり、この
点の改良も望まれていた。The above-mentioned mortar and hardened concrete to which the water reducing agent is added generally have a drawback of being brittle, and improvement in this respect has been demanded. Further, when such a concrete composition or mortar composition is cured in air, the resulting cured product tends to have lower mechanical strength, for example, bending strength, than curing in water, and improvement in this respect has also been desired. .
【0005】[0005]
【課題を解決するための手段】本発明者はメラミン系ま
たはフェノール系化合物と水溶性エポキシ化合物等を組
み合わせてセメントに添加することにより、メラミン系
またはフェノール系化合物をセメントに添加した場合の
前記問題点を改善でき、しかも気中養生しても水中養生
と同程度の機械的強度を有するセメント硬化物が得られ
るとの知見を得て、本発明を完成させることが出来た。Means for Solving the Problems The present inventor has combined the melamine-based or phenol-based compound and a water-soluble epoxy compound with each other and added them to the cement, thereby causing the above-mentioned problems when the melamine-based or phenol-based compound is added to the cement. The present invention could be completed based on the finding that a cured cement product having the same mechanical strength as that of underwater curing can be obtained by improving the above points and curing in air.
【0006】すなわち本発明の第1の態様によれば、水
溶性エポキシ化合物(A)、メラミン系またはフェノー
ル系コンクリート減水剤(B)およびエポキシ樹脂硬化
剤(C)からなることを特徴とするセメント用添加剤
(1)が提供される。また本発明によれば、水溶性エポ
キシ化合物(A)10〜80重量%、メラミン系または
フェノール系コンクリート減水剤(B)2〜70重量%
およびエポキシ樹脂硬化剤(C)2〜30重量%
{(A)〜(C)の合計は100重量%}からなる前記
セメント用添加剤(1)が提供される。また本発明によ
れば、セメント100重量部に対し、前記セメント用添
加剤(1)を0.5〜30重量部を添加したことを特徴
とするセメント硬化用組成物が提供される。さらに本発
明によれば、セメント100重量部に対し、前記セメン
ト用添加剤(1)を0.5〜30重量部を添加し硬化さ
せたことを特徴とするセメント硬化物が提供される。That is, according to the first aspect of the present invention, a cement characterized by comprising a water-soluble epoxy compound (A), a melamine-based or phenol-based concrete water reducing agent (B) and an epoxy resin curing agent (C). An additive (1) for use is provided. Further, according to the present invention, the water-soluble epoxy compound (A) is 10 to 80% by weight, and the melamine-based or phenol-based concrete water reducing agent (B) is 2 to 70% by weight.
And epoxy resin curing agent (C) 2 to 30% by weight
Provided is the cement additive (1) comprising {(A) to (C) is 100% by weight}. Further, according to the present invention, there is provided a composition for hardening cement, characterized in that 0.5 to 30 parts by weight of the cement additive (1) is added to 100 parts by weight of cement. Further, according to the present invention, there is provided a hardened cement product, which is obtained by adding 0.5 to 30 parts by weight of the cement additive (1) to 100 parts by weight of cement and hardening the cement.
【0007】また本発明の第2の態様によれば、水溶性
エポキシ化合物(A)、メラミン系またはフェノール系
コンクリート減水剤(B)、エポキシ樹脂硬化剤(C)
およびエポキシ樹脂(D)からなることを特徴とするセ
メント用添加剤(2)が提供される。また本発明によれ
ば、水溶性エポキシ化合物(A)2〜31重量%、メラ
ミン系またはフェノール系コンクリート減水剤(B)2
2〜50重量%、エポキシ樹脂硬化剤(C)9〜22重
量%およびエポキシ樹脂(D)13〜42重量%
{(A)〜(D)の合計は100重量%}からなる前記
セメント用添加剤(2)が提供される。また本発明によ
れば、セメント100重量部に対し、前記セメント用添
加剤(2)を0.5〜30重量部を添加したことを特徴
とするセメント硬化用組成物が提供される。さらに本発
明によれば、セメント100重量部に対し、前記セメン
ト用添加剤(2)を0.5〜30重量部を添加し硬化さ
せたことを特徴とするセメント硬化物が提供される。以
下、各発明について詳細に説明する。According to the second aspect of the present invention, a water-soluble epoxy compound (A), a melamine-based or phenol-based concrete water reducing agent (B), an epoxy resin curing agent (C).
And an additive (2) for cement characterized by comprising an epoxy resin (D). According to the present invention, the water-soluble epoxy compound (A) is 2 to 31% by weight, and the melamine-based or phenol-based concrete water reducing agent (B) 2 is used.
2 to 50% by weight, epoxy resin curing agent (C) 9 to 22% by weight and epoxy resin (D) 13 to 42% by weight
There is provided the cement additive (2) comprising {(A) to (D) is 100% by weight}. Further, according to the present invention, there is provided a composition for hardening cement, wherein 0.5 to 30 parts by weight of the additive (2) for cement is added to 100 parts by weight of cement. Further, according to the present invention, there is provided a hardened cement product, which is obtained by adding 0.5 to 30 parts by weight of the cement additive (2) to 100 parts by weight of cement and hardening the cement. Hereinafter, each invention will be described in detail.
【0008】[0008]
【発明の実施の形態】本発明で使用する水溶性エポキシ
化合物(A)としては、例えばグリセロールジグリシジ
ルエーテル、グリセロールトリグリシジルエーテル、ポ
リグリセロールポリグリシジルエーテル、ポリプロピレ
ングリコールジグリシジルエーテル、エチレングリコー
ルジグリシジルエーテル、プロピレングリコールジグリ
シジルエーテル、ポリエチレングリコールジグリシジル
エーテル、ソルビトールポリグリシジルエーテル等を挙
げることができ、中でもグリセロールジグリシジルエー
テル、グリセロールトリグリシジルエーテル、ソルビト
ールポリグリシジルエーテルが好ましい。BEST MODE FOR CARRYING OUT THE INVENTION Examples of the water-soluble epoxy compound (A) used in the present invention include glycerol diglycidyl ether, glycerol triglycidyl ether, polyglycerol polyglycidyl ether, polypropylene glycol diglycidyl ether, ethylene glycol diglycidyl ether. , Propylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, sorbitol polyglycidyl ether, and the like, among which glycerol diglycidyl ether, glycerol triglycidyl ether, and sorbitol polyglycidyl ether are preferable.
【0009】本発明に使用される(B)成分の一つであ
るメラミン系コンクリート減水剤としては、メラミンホ
ルムアルデヒド縮合物、メラミンホルマリン縮合物スル
ホン酸塩、メラミンホルマリン縮合物亜硫酸変性物等が
例示できる。Examples of the melamine type concrete water reducing agent which is one of the components (B) used in the present invention include melamine formaldehyde condensate, melamine formalin condensate sulfonate, melamine formalin condensate and sulfurous acid modified product. .
【0010】本発明に使用される(B)成分の他の一つ
であるフェノール系コンクリート減水剤としては、フェ
ノールホルマリン縮合物、アルキルフェノール縮合物、
及びそれら縮合物のスルホン酸塩等が例示される。中で
もフェノールホルマリン縮合物が好ましい。As the phenolic concrete water reducing agent which is another component (B) used in the present invention, phenol formalin condensate, alkylphenol condensate,
And sulfonates of these condensates are exemplified. Among them, phenol formalin condensate is preferable.
【0011】本発明に使用されるエポキシ樹脂硬化剤
(C)としては、好ましくはアミン類であり、前記特開
昭60−67144号公報に記載されている様な、オク
チルアミン、ラウリルアミン、オレイルアミン、リノレ
イルアミン、オクチルプロピレンジアミン、ラウリルプ
ロピレンジアミン、オレイルプロピレンジアミン、リノ
レイルプロピレンジアミン、ラウロジプロピレンジアミ
ン、オレオジプロピレンジアミン、ヘプタデセニルイミ
ダゾリンポリアミン、ダイマー酸ポリアミドアミン、キ
シレンジアミン、ポリメルカプタン、ポリスルフィド樹
脂、エチレンジアミン、ジエチレントリアミン、ポリオ
キシプロピレンジアミン、ポリエチレンイミン、ベンジ
ルエチレンジアミン、フェニルジアミン、メタキシレン
ジアミン、イソホロンジアミン等が例示できる。The epoxy resin curing agent (C) used in the present invention is preferably an amine, such as octylamine, laurylamine and oleylamine as described in JP-A-60-67144. , Linoleylamine, octylpropylenediamine, laurylpropylenediamine, oleylpropylenediamine, linoleylpropylenediamine, laurodipropylenediamine, oleodipropylenediamine, heptadecenylimidazoline polyamine, dimer acid polyamideamine, xylenediamine, polymercaptan, Polysulfide resin, ethylenediamine, diethylenetriamine, polyoxypropylenediamine, polyethyleneimine, benzylethylenediamine, phenyldiamine, metaxylenediamine, isopholo Diamine and the like.
【0012】本発明のセメント用添加剤(1)は、上記
水溶性エポキシ化合物(A)、メラミン系またはフェノ
ール系コンクリート減水剤(B)およびエポキシ樹脂硬
化剤(C)の各成分からなるものであり、好ましくは水
溶性エポキシ化合物(A)10〜80重量%、特に好ま
しく40〜70重量%、メラミン系またはフェノール系
コンクリート減水剤(B)を固形分として2〜70重量
%、特に好ましくは15〜40重量%、およびエポキシ
樹脂硬化剤(C)2〜30重量%、特に好ましくは15
〜30重量%からなるものである。但し、(A)、
(B)および(C)の各成分の合計は100重量%であ
る。The cement additive (1) of the present invention comprises the water-soluble epoxy compound (A), the melamine-based or phenol-based concrete water reducing agent (B) and the epoxy resin curing agent (C). The water-soluble epoxy compound (A) is preferably 10 to 80% by weight, particularly preferably 40 to 70% by weight, and the melamine-based or phenol-based concrete water reducing agent (B) is 2 to 70% by weight as a solid content, and particularly preferably 15 To 40% by weight, and 2 to 30% by weight of the epoxy resin curing agent (C), particularly preferably 15
.About.30% by weight. However, (A),
The total of the components (B) and (C) is 100% by weight.
【0013】本発明のセメント用添加剤(1)は、そ
の構成成分を混合したものとして、適量の水のほか、必
要に応じて後記の細骨材や粗骨材の適量、更にはその他
の添加剤と共にセメントに混合してもよいし、各
(A)〜(C)の成分を予め混合することなく各々別々
に添加してもよい。さらに(A)〜(C)のうち、例
えば(A)と(B)の混合物と、(C)を別々に準備し
ておき、それらをセメントに混合してもよい。特にこれ
らの中では、において、(A)と(B)の混合物と、
(C)とを別々にセメントに添加することが好ましい。
さらにこの場合、例えば(A)と(B)の成分と、
(C)の成分を予め別々に水性エマルジョンの形に調製
して、共にセメントに添加してもよい。The cement additive (1) of the present invention, as a mixture of its components, contains an appropriate amount of water, and if necessary, an appropriate amount of fine aggregate and coarse aggregate described below, and further The components may be mixed with cement together with the additives, or the components (A) to (C) may be separately added without being mixed in advance. Further, among (A) to (C), for example, a mixture of (A) and (B) and (C) may be separately prepared and mixed with cement. Particularly among these, in, a mixture of (A) and (B),
It is preferable to add (C) to the cement separately.
Further, in this case, for example, the components of (A) and (B),
The components (C) may be separately prepared in advance in the form of an aqueous emulsion and added to the cement together.
【0014】本発明のセメント用添加剤(1)をセメン
トに添加する添加量としては、成分のみの重量として、
セメント100重量部に対し前記セメント用添加剤0.
5〜30重量部、好ましくは5〜20重量部の範囲であ
る。The addition amount of the cement additive (1) of the present invention to cement is as follows:
The cement additive was added to 100 parts by weight of cement.
It is in the range of 5 to 30 parts by weight, preferably 5 to 20 parts by weight.
【0015】本発明のセメント用添加剤(1)は上記
(A)、(B)および(C)成分を必須とするものであ
るが、その他に充填剤、湿潤剤、可塑剤、離型剤、凝結
促進剤その他のセメント混和剤を混合し、使用すること
ができる。なお、これらは、本発明の効果を阻害しない
限り、本発明のセメント用添加剤(1)の三つの成分の
混合物、または何れかの成分に添加しておいてもよい
し、本発明の添加剤(1)をセメントに添加する際に、
別に添加してもよい。The cement additive (1) of the present invention contains the above-mentioned components (A), (B) and (C) as essential components, but in addition, a filler, a wetting agent, a plasticizer and a release agent. , A setting accelerator, and other cement admixtures can be mixed and used. In addition, these may be added to the mixture of the three components of the additive (1) for cement of the present invention, or any of the components as long as the effect of the present invention is not impaired. When adding agent (1) to cement,
You may add separately.
【0016】本発明に使用されるセメントとしては、ポ
ルトランドセメント、白色セメント、アルミナセメン
ト、スラッグセメントなどのセメントの他、石灰、石こ
う、珪酸カルシウム、炭酸カルシウム、炭酸マグネシウ
ム、三珪酸マグネシウムなどをも含めて例示することが
でき、これらを単独であるいは数種混合して使用するこ
とができる。The cement used in the present invention includes cements such as Portland cement, white cement, alumina cement and slag cement, as well as lime, gypsum, calcium silicate, calcium carbonate, magnesium carbonate, magnesium trisilicate and the like. These can be exemplified, and these can be used alone or as a mixture of several kinds.
【0017】本発明の添加剤(1)を添加したセメント
硬化組成物には、更に細骨材を配合することによりモル
タル組成物を、さらに粗骨材を配合することによりコン
クリート用組成物としてもよい。なお、細骨材、粗骨材
は従来より用いられているものを使用できる。The cement hardening composition to which the additive (1) of the present invention is added is further mixed with fine aggregate to give a mortar composition, and further with coarse aggregate to be used as a concrete composition. Good. As the fine aggregate and the coarse aggregate, those conventionally used can be used.
【0018】次に、本発明の第2の態様であるセメント
用添加剤(2)について説明する。セメント用添加剤
(2)においては、セメント用添加剤(1)の各成分の
他、さらに水溶性エポキシ化合物以外のエポキシ樹脂
(D)を用いる。Next, the cement additive (2) which is the second embodiment of the present invention will be explained. In the cement additive (2), in addition to the components of the cement additive (1), an epoxy resin (D) other than a water-soluble epoxy compound is used.
【0019】前記エポキシ樹脂(D)としては、前記特
開昭60−67144号公報に記載されている如きもの
であり、ビスフェノールAジグリシジルエーテル、ビス
フェノールA酸化プロピレン付加物ジグリシジルエーテ
ル、ダイマー酸グリシジルエステル、フタール酸グリシ
ジルエステル、フェノールノボラックグリシジルエーテ
ル等が例示されるが、特にビスフェノールAジグリシジ
ルエーテルが好ましい。The epoxy resin (D) is as described in JP-A-60-67144, and includes bisphenol A diglycidyl ether, bisphenol A propylene oxide adduct diglycidyl ether, and glycidyl dimer acid. Examples thereof include esters, glycidyl phthalates, and phenol novolac glycidyl ethers, with bisphenol A diglycidyl ether being particularly preferred.
【0020】本発明のセメント用添加剤(2)は、上記
水溶性エポキシ化合物(A)、メラミン系またはフェノ
ール系コンクリート減水剤(B)およびエポキシ樹脂硬
化剤(C)およびエポキシ樹脂(D)の各成分からなる
ものであるが、好ましくは水溶性エポキシ化合物(A)
2〜31重量%、特に好ましく4〜13重量%、メラミ
ン系またはフェノール系コンクリート減水剤(B)22
〜50重量%、特に好ましくは26〜50重量%、エポ
キシ樹脂硬化剤(C)9〜22重量%、特に好ましくは
9〜18重量%およびエポキシ樹脂(D)13〜42重
量%、特に好ましくは31〜40重量%からなるもので
ある。但し、(A)、(B)、(C)および(D)の各
成分の合計は100重量%である。The cement additive (2) of the present invention comprises the water-soluble epoxy compound (A), the melamine-based or phenol-based concrete water reducing agent (B), the epoxy resin curing agent (C) and the epoxy resin (D). It is composed of each component, but is preferably a water-soluble epoxy compound (A)
2 to 31% by weight, particularly preferably 4 to 13% by weight, melamine-based or phenol-based concrete water reducing agent (B) 22
To 50% by weight, particularly preferably 26 to 50% by weight, epoxy resin curing agent (C) 9 to 22% by weight, particularly preferably 9 to 18% by weight and epoxy resin (D) 13 to 42% by weight, particularly preferably 31 to 40% by weight. However, the total of the components (A), (B), (C) and (D) is 100% by weight.
【0021】本発明のセメント用添加剤(2)は、そ
の構成成分を混合したものとして、適量の水のほか、必
要に応じて前記の細骨材や粗骨材の適量、更には前記の
その他の添加剤と共にセメントに混合してもよいし、
各(A)〜(D)の成分を予め混合することなく各々別
々に添加してもよい。さらに(A)〜(D)のうち、
例えば(A)と(D)の混合物と、(B)と(C)の混
合物を別々に準備しておき、それらをセメントに混合し
てもよい。特にこれらの中では、において、(A)と
(D)の混合物と、(B)と(C)の混合物を別々にセ
メントに添加することが好ましい。さらにこの場合、例
えば(A)と(D)の成分と、(B)と(C)の成分を
予め別々に水性エマルジョンの形に調製して、共にセメ
ントに添加してもよい。The cement additive (2) of the present invention, as a mixture of its constituent components, contains an appropriate amount of water, and if necessary, an appropriate amount of the above-mentioned fine aggregate or coarse aggregate, and further the above-mentioned. May be mixed with cement with other additives,
The components (A) to (D) may be added separately without being mixed in advance. Furthermore, among (A) to (D),
For example, a mixture of (A) and (D) and a mixture of (B) and (C) may be prepared separately and then mixed with cement. In particular, among these, it is preferable to separately add the mixture of (A) and (D) and the mixture of (B) and (C) to the cement. Further, in this case, for example, the components (A) and (D) and the components (B) and (C) may be separately prepared in advance in the form of an aqueous emulsion and added together to the cement.
【0022】本発明の添加剤(2)をセメントに添加す
る添加量としては、成分のみの重量として、セメント1
00重量部に対し前記セメント用添加剤(2)0.5〜
30重量部、好ましくは1〜10重量部の範囲である。The additive (2) of the present invention is added to the cement in terms of the weight of the components alone and the cement 1
The above-mentioned cement additive (2) 0.5 to 100 parts by weight
It is in the range of 30 parts by weight, preferably 1 to 10 parts by weight.
【0023】本発明のセメント用添加剤(2)は上記
(A)、(B)、(C)および(D)成分を必須とする
ものであるが、前記セメント用添加剤(1)の場合と同
様に、その他に充填剤、湿潤剤、可塑剤、離型剤、凝結
促進剤その他のセメント混和剤を混合し、使用すること
ができる。また、これらは、本発明の効果を阻害しない
限り、本発明のセメント用添加剤(2)の四つの成分の
混合物または何れかの成分に添加しておいてもよいし、
本発明の添加剤(2)をセメントに添加する際に、別に
添加してもよいことも、セメント用添加剤(1)の場合
と同様である。The cement additive (2) of the present invention contains the above-mentioned components (A), (B), (C) and (D) as essential components. In the case of the cement additive (1), Similarly to the above, a filler, a wetting agent, a plasticizer, a release agent, a setting accelerator and other cement admixtures can be mixed and used. In addition, these may be added to a mixture of four components of the cement additive (2) of the present invention or any of the components, as long as the effects of the present invention are not impaired.
When the additive (2) of the present invention is added to cement, it may be added separately, as in the case of the additive (1) for cement.
【0024】本発明のセメント用添加剤(2)が添加さ
れるセメントとしては、セメント用添加剤(1)と同様
に、ポルトランドセメント、白色セメント、アルミナセ
メント、スラッグセメントなどのセメントの他、石灰、
石こう、珪酸カルシウム、炭酸カルシウム、炭酸マグネ
シウム、三珪酸マグネシウムなどをも含めて例示するこ
とができ、これらを単独であるいは数種混合して使用す
ることができる。As the cement to which the cement additive (2) of the present invention is added, similar to the cement additive (1), cement such as Portland cement, white cement, alumina cement, slag cement, and lime are also used. ,
Examples thereof include gypsum, calcium silicate, calcium carbonate, magnesium carbonate, magnesium trisilicate, and the like, and these can be used alone or as a mixture of several kinds.
【0025】本発明のセメント用添加剤(2)を添加し
たセメント硬化組成物には、セメント用添加剤(1)の
場合と同様、更に細骨材を配合することによりモルタル
組成物を、さらに粗骨材を配合することによりコンクリ
ート用組成物としてもよい。また、細骨材、粗骨材は従
来より用いられているものを使用できる。As in the case of the cement additive (1), the cement hardening composition to which the cement additive (2) of the present invention is added is further mixed with a fine aggregate to give a mortar composition, A composition for concrete may be prepared by blending coarse aggregate. Further, as the fine aggregate and the coarse aggregate, those conventionally used can be used.
【0026】[0026]
【実施例】以下、本発明を実施例により更に具体的に説
明するが、本発明はこれらに限定されるものではない。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.
【0027】(実施例1)セメント(普通ポルトランド
セメント)100重量部、骨材(珪砂5号)300重量
部、水30重量部、メチロール化メラミン(三井東圧化
学(株)製:メルフローX−100)3重量部、水溶性
エポキシ化合物(グリセロールジグリシジルエーテル)
8重量部、エチレンジアミン0.8重量部を配合し、十
分に混練した後フロー値を測定し、次いで硬化組成物の
性能評価の為のテストピースを作製した。比較例1とし
て、本発明の添加剤を用いないで高性能減水剤(花王マ
イティ2000V2)を使用して同様に行った。測定結
果を表−1に示す。なお、テストピースの作製方法およ
び評価方法は以下の通りである。Example 1 100 parts by weight of cement (ordinary Portland cement), 300 parts by weight of aggregate (silica sand No. 5), 30 parts by weight of water, methylol melamine (Mitsui Toatsu Chemical Co., Ltd .: Melflow X-) 100) 3 parts by weight, water-soluble epoxy compound (glycerol diglycidyl ether)
8 parts by weight and 0.8 parts by weight of ethylenediamine were mixed and sufficiently kneaded, and then the flow value was measured, and then a test piece for evaluating the performance of the cured composition was prepared. As Comparative Example 1, a high performance water reducing agent (Kao Mighty 2000V 2 ) was used in the same manner without using the additive of the present invention. The measurement results are shown in Table-1. The test piece production method and evaluation method are as follows.
【0028】(テストピース作製条件)型枠(寸法長さ
40mm×巾40mm×高さ160mm)を使用してコ
ンクリート混合物を注型し、均一に充填されるように振
動し、脱泡後20℃、湿度90%の部屋に1昼夜放置後
した。その後、水中養生(20℃±3℃の水中に7日間
および28日間浸漬)を行い、脱型し、それぞれテスト
ピースを得た。(Conditions for preparing test pieces) A concrete mixture was cast using a mold (dimension length 40 mm × width 40 mm × height 160 mm), vibrated so as to be uniformly filled, and defoamed at 20 ° C. It was left for one day in a room with a humidity of 90%. Then, it was aged in water (immersed in water at 20 ° C. ± 3 ° C. for 7 days and 28 days) and demolded to obtain test pieces.
【0029】(フロー値・曲げ強度・圧縮強度)JIS
R5201に準じて行った。(Flow value / bending strength / compression strength) JIS
It carried out according to R5201.
【0030】[0030]
【表1】 [Table 1]
【0031】(実施例2〜4)表−2に示した配合組成
で各成分を配合し、攪拌混合し、十分に混練した後、実
施例1と同様の方法でフロー値を測定し、硬化組成物の
性能評価の為のテストピースを作製した。結果を表−3
に示す。(Examples 2 to 4) The respective components were blended in the blending composition shown in Table 2, stirred and mixed, and sufficiently kneaded, and then the flow value was measured in the same manner as in Example 1 to cure. A test piece for evaluating the performance of the composition was prepared. The results are shown in Table-3.
Shown in
【0032】[0032]
【表2】 [Table 2]
【0033】[0033]
【表3】 [Table 3]
【0034】(実施例5)セメント(普通ポルトランド
セメント)100重量部、骨材(珪砂5号)300重量
部、水25重量部、ブチル化メラミン(三井東圧化学
(株)製:ユーバン280)6重量部、イソホロンジア
ミン1.3重量部から成るセメント配合物に水溶性エポ
キシ化合物(ポリエチレングリコールジグリシジルエー
テル)1.5重量部、エピクロロヒドリン・ビスフェノ
ールA型エポキシ樹脂3.5重量部を添加し、攪拌混合
し、十分に混練した後フロー値を測定し、次いで硬化組
成物の性能評価の為のテストピースを作製した。比較例
2として、本発明の添加剤を用いないで高性能減水剤
(花王マイティ2000V2)を使用して同様に行っ
た。なお、テストピースの作製方法および評価方法は以
下の通りである。それらの結果を表−4に示す。Example 5 100 parts by weight of cement (ordinary Portland cement), 300 parts by weight of aggregate (silica sand No. 5), 25 parts by weight of water, butylated melamine (Uban 280 manufactured by Mitsui Toatsu Chemicals, Inc.) 1.5 parts by weight of water-soluble epoxy compound (polyethylene glycol diglycidyl ether) and 3.5 parts by weight of epichlorohydrin-bisphenol A type epoxy resin in a cement mixture consisting of 6 parts by weight and 1.3 parts by weight of isophorone diamine. After adding, stirring and mixing, and sufficiently kneading, the flow value was measured, and then a test piece for evaluating the performance of the cured composition was prepared. As Comparative Example 2, a high performance water reducing agent (Kao Mighty 2000V 2 ) was used in the same manner without using the additive of the present invention. The test piece production method and evaluation method are as follows. The results are shown in Table-4.
【0035】(テストピース作製条件)型枠(寸法長さ
40mm×巾40mm×高さ160mm)を使用してコ
ンクリート混合物を注型し、均一に充填されるように振
動し、脱泡後20℃、湿度90%の部屋に1昼夜放置後
した。その後、水中養生(20℃±3℃の水中に7日
間)と気中養生(20℃±3℃、湿度70±10%の雰
囲気中に7日間放置)を別々に行い、脱型し、それぞれ
テストピースを得た。(Conditions for producing test pieces) A concrete mixture was cast using a mold (dimension length 40 mm × width 40 mm × height 160 mm), vibrated so as to be uniformly filled, and defoamed at 20 ° C. It was left for one day in a room with a humidity of 90%. After that, underwater curing (20 ° C ± 3 ° C in water for 7 days) and aerial curing (20 ° C ± 3 ° C, humidity 70 ± 10% for 7 days) were performed separately and demolded. I got a test piece.
【0036】(フロー値・曲げ強度・圧縮強度・吸水
率)JIS R5201に準じて行った。(Flow Value / Bending Strength / Compression Strength / Water Absorption) The measurement was carried out according to JIS R5201.
【0037】[0037]
【表4】 [Table 4]
【0038】[0038]
【発明の効果】本発明のセメント用添加剤(1)または
(2)を添加したセメント組成物は、流動性に優れ、ま
た気中養生しても水中養生した場合に近い優れた機械的
強度、例えば曲げ強度を有する硬化物が得られる。EFFECT OF THE INVENTION The cement composition containing the cement additive (1) or (2) of the present invention has excellent fluidity and excellent mechanical strength even when cured in air even when cured in water. A cured product having, for example, flexural strength is obtained.
───────────────────────────────────────────────────── 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 28/02 24:30 D 24:28 A 24:12) A 103:30 103:32 111:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display area // (C04B 28/02 24:30 D 24:28 A 24:12) A 103: 30 103: 32 111: 00
Claims (8)
系またはフェノール系コンクリート減水剤(B)および
エポキシ樹脂硬化剤(C)からなることを特徴とするセ
メント用添加剤(1)。1. A cement additive (1) comprising a water-soluble epoxy compound (A), a melamine-based or phenol-based concrete water reducing agent (B) and an epoxy resin curing agent (C).
重量%、メラミン系またはフェノール系コンクリート減
水剤(B)2〜70重量%およびエポキシ樹脂硬化剤
(C)2〜50重量%{(A)〜(C)の合計は100
重量%}からなる請求項1記載のセメント用添加剤
(1)。2. Water-soluble epoxy compound (A) 10-80
%, Melamine-based or phenol-based concrete water reducing agent (B) 2 to 70% by weight, and epoxy resin curing agent (C) 2 to 50% by weight {(A) to (C) total 100.
% By weight}. The cement additive (1) according to claim 1.
記載のセメント用添加剤(1)を0.5〜30重量部を
添加したことを特徴とするセメント硬化用組成物。3. The method according to claim 2, relative to 100 parts by weight of cement.
A cement hardening composition, characterized in that 0.5 to 30 parts by weight of the cement additive (1) described above is added.
記載のセメント用添加剤(1)を0.5〜30重量部を
添加し硬化させたことを特徴とするセメント硬化物。4. The method according to claim 2, with respect to 100 parts by weight of cement.
A hardened cement product, which is obtained by adding 0.5 to 30 parts by weight of the additive for cement (1) described above and hardening it.
系またはフェノール系コンクリート減水剤(B)、エポ
キシ樹脂硬化剤(C)およびエポキシ樹脂(D)からな
ることを特徴とするセメント用添加剤(2)。5. A cement additive (1) comprising a water-soluble epoxy compound (A), a melamine-based or phenol-based concrete water reducing agent (B), an epoxy resin curing agent (C) and an epoxy resin (D). 2).
量%、メラミン系またはフェノール系コンクリート減水
剤(B)22〜50重量%、エポキシ樹脂硬化剤(C)
9〜22重量%およびエポキシ樹脂(D)13〜42重
量%{(A)〜(D)の合計は100重量%}からなる
請求項5記載のセメント用添加剤(2)。6. Water-soluble epoxy compound (A) 2 to 31% by weight, melamine-based or phenol-based concrete water reducing agent (B) 22 to 50% by weight, epoxy resin curing agent (C)
The cement additive (2) according to claim 5, which comprises 9 to 22% by weight and 13 to 42% by weight of the epoxy resin (D) {total of (A) to (D) is 100% by weight}.
記載のセメント用添加剤(2)を0.5〜30重量部を
添加したことを特徴とするセメント硬化用組成物。7. The method according to claim 6, with respect to 100 parts by weight of cement.
A cement-curing composition, wherein 0.5 to 30 parts by weight of the cement additive (2) described above is added.
記載のセメント用添加剤(2)を0.5〜30重量部を
添加し硬化させたことを特徴とするセメント硬化物。8. The method according to claim 6 with respect to 100 parts by weight of cement.
A hardened cement product, which is obtained by adding 0.5 to 30 parts by weight of the additive for cement (2) described above and hardening it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32803995A JP3602626B2 (en) | 1994-11-25 | 1995-11-22 | Additive for cement, composition for hardening cement and hardened cement |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31430994 | 1994-11-25 | ||
JP6-314309 | 1994-11-25 | ||
JP32803995A JP3602626B2 (en) | 1994-11-25 | 1995-11-22 | Additive for cement, composition for hardening cement and hardened cement |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08208295A true JPH08208295A (en) | 1996-08-13 |
JP3602626B2 JP3602626B2 (en) | 2004-12-15 |
Family
ID=26567898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32803995A Expired - Fee Related JP3602626B2 (en) | 1994-11-25 | 1995-11-22 | Additive for cement, composition for hardening cement and hardened cement |
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JP (1) | JP3602626B2 (en) |
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US6602924B1 (en) | 2002-04-23 | 2003-08-05 | Jin-Chih Chiang | Foamed gypsum compositions |
CN103641368A (en) * | 2013-12-04 | 2014-03-19 | 湖南化工职业技术学院 | Magnesite cementing material additive and use method thereof |
KR102106352B1 (en) * | 2019-06-19 | 2020-05-28 | 태산엔지니어링 주식회사 | Ultra-high-strength resin mortar composition with multi-functional entire eco-friendliness as well as lyphophilic and hydrophilic properties, and uses thereof |
KR102202889B1 (en) * | 2020-04-20 | 2021-01-15 | 태산엔지니어링 주식회사 | Construction method of concrete flooring using ultra-high-strength resin mortar composition with multi-functional entire eco-friendliness as well as lyphophilic and hydrophilic properties, and uses thereof |
CN112430319A (en) * | 2020-11-27 | 2021-03-02 | 中国建材检验认证集团厦门宏业有限公司 | Cement-based material viscosity reducer and preparation method thereof |
-
1995
- 1995-11-22 JP JP32803995A patent/JP3602626B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6602924B1 (en) | 2002-04-23 | 2003-08-05 | Jin-Chih Chiang | Foamed gypsum compositions |
CN103641368A (en) * | 2013-12-04 | 2014-03-19 | 湖南化工职业技术学院 | Magnesite cementing material additive and use method thereof |
CN103641368B (en) * | 2013-12-04 | 2015-09-09 | 湖南化工职业技术学院 | A kind of magnesite binding material admixture and using method thereof |
KR102106352B1 (en) * | 2019-06-19 | 2020-05-28 | 태산엔지니어링 주식회사 | Ultra-high-strength resin mortar composition with multi-functional entire eco-friendliness as well as lyphophilic and hydrophilic properties, and uses thereof |
KR102202889B1 (en) * | 2020-04-20 | 2021-01-15 | 태산엔지니어링 주식회사 | Construction method of concrete flooring using ultra-high-strength resin mortar composition with multi-functional entire eco-friendliness as well as lyphophilic and hydrophilic properties, and uses thereof |
CN112430319A (en) * | 2020-11-27 | 2021-03-02 | 中国建材检验认证集团厦门宏业有限公司 | Cement-based material viscosity reducer and preparation method thereof |
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Publication number | Publication date |
---|---|
JP3602626B2 (en) | 2004-12-15 |
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