JPH0733502A - Cement composition - Google Patents
Cement compositionInfo
- Publication number
- JPH0733502A JPH0733502A JP22492293A JP22492293A JPH0733502A JP H0733502 A JPH0733502 A JP H0733502A JP 22492293 A JP22492293 A JP 22492293A JP 22492293 A JP22492293 A JP 22492293A JP H0733502 A JPH0733502 A JP H0733502A
- Authority
- JP
- Japan
- Prior art keywords
- cement composition
- water
- composition
- added
- cement
- 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
- C04B2103/40—Surface-active agents, dispersants
- C04B2103/406—Surface-active agents, dispersants non-ionic
-
- 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
- C04B2103/40—Surface-active agents, dispersants
- C04B2103/408—Dispersants
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00129—Extrudable mixtures
-
- 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)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、セメント系の押出成形
用組成物，セメント系のモルタル組成物，コンクリート
組成物に関するものである。TECHNICAL FIELD The present invention relates to a cement-based extrusion molding composition, a cement-based mortar composition, and a concrete composition.
【０００２】[0002]
【従来の技術】セメントにケイ砂あるいはケイ石粉等の
骨材や場合によっては補強繊維を添加して水と混合して
作られるモルタル組成物やコンクリート組成物にあって
は、アルキル基置換もしくはアルキル基非置換 アリル
スルホン酸塩のホルマリン縮合物（以下、該縮合物と言
う）等の減水剤あるいは分散剤を添加することが行われ
ている。これは該縮合物のセメント分散効果により添加
水量を少なくしても流動性に優れるモルタルあるいはコ
ンクリート組成物とすることが可能であり、流動性を維
持するために加えられるセメントの水和硬化に必要な水
量以上の、硬化過程において強度低下の原因となる水量
を減らせる性能が発揮されるからである。2. Description of the Related Art In a mortar composition or a concrete composition prepared by adding aggregate such as silica sand or silica stone powder to cement or reinforcing fiber in some cases and mixing with water, alkyl group substitution or alkyl A water reducing agent or a dispersant such as a formalin condensate of a non-group-substituted allyl sulfonate (hereinafter referred to as the condensate) is added. It is possible to obtain a mortar or concrete composition having excellent fluidity even if the amount of added water is reduced due to the effect of dispersing the condensate on the cement, and it is necessary for hydration hardening of the cement added to maintain the fluidity. This is because the ability to reduce the amount of water that causes a decrease in strength during the curing process is exhibited when the amount of water is greater than that.
【０００３】しかしながら、一般にこれらの分散剤はセ
メント粒子の分散効果はあってもセメントと添加骨材や
補強繊維との密着力に劣り、これらセメント組成物中で
骨材や補強繊維の分離が生じることで、硬化体の強度低
下が生じるという問題点も有している。However, in general, these dispersants are inferior in the adhesiveness between the cement and the added aggregate or reinforcing fiber even though they have the effect of dispersing the cement particles, and the aggregate and the reinforcing fiber are separated in these cement compositions. Therefore, there is also a problem that the strength of the cured product is reduced.
【０００４】そこで、この分離を抑制するために水溶性
の有機バインダーを添加することが行われる。Therefore, in order to suppress this separation, a water-soluble organic binder is added.
【０００５】一方、セメントの押出成形組成物において
は、上記の他成形時にかかる高い応力においても組成物
が分離しないようにバインダーを添加することが行われ
る。On the other hand, in the cement extrusion molding composition, a binder is added so that the composition does not separate even under the high stress applied during the other molding.
【０００６】この種のバインダーとしては、メチルセル
ロース等のアルキルセルロース又はヒドロキシプロピル
メチルセルロース等のヒドロキシアルキル アルキル
セルロースもしくはこれら双方（以下、該セルロースと
言う）等が、セメント粒子への吸着性能や，骨材分離抵
抗性また保水性に優れている点で使用されている。As this kind of binder, alkyl cellulose such as methyl cellulose, hydroxyalkyl alkyl cellulose such as hydroxypropyl methyl cellulose, or both of them (hereinafter referred to as the cellulose) and the like are adsorbed on the cement particles and separated from the aggregate. It is used because of its excellent resistance and water retention.
【０００７】しかしながら、この種のバインダー水溶液
は分散剤として優れる該縮合物に対して特異的なコンプ
レックスを形成し、このコンプレックスが極めて粘弾性
の高い溶液状態となるため、該縮合物とともにセメント
系組成物に添加すると目的とする優れた流動性を出すこ
とが出来なくなってしまう。結果として、必要な流動性
を出すために添加水量を増やさざるおえない状況とな
り、組成物の硬化養生体の強度が低下してしまうという
問題があった。However, this kind of aqueous binder solution forms a specific complex with respect to the condensate which is excellent as a dispersant, and this complex is in a solution state having extremely high viscoelasticity, so that a cementitious composition is formed together with the condensate. If added to the product, the desired excellent fluidity cannot be obtained. As a result, there has been a problem that the amount of added water has to be increased in order to obtain the required fluidity, and the strength of the curing and curing agent of the composition decreases.
【０００８】[0008]
【発明が解決しようとする課題】本発明が解決しようと
する問題点は、該縮合物と該セルロースをともにセメン
ト組成物に添加しても、それぞれの分散剤，バインダー
としての優れた特性を失わないようにすることである。
これによって添加水量を少なくしても優れた流動性を有
し、かつ骨材や繊維の分離抵抗性，保水性にも優れる
上、硬化体の強度も良好なセメント組成物を得ることに
ある。The problem to be solved by the present invention is that even if both the condensate and the cellulose are added to the cement composition, the excellent properties of the respective dispersants and binders are lost. It is to prevent it.
This makes it possible to obtain a cement composition which has excellent fluidity even when the amount of added water is reduced, and is excellent in separation resistance of aggregates and fibers and water retention, and also has good strength of a hardened product.
【０００９】[0009]
【課題を解決するための手段】本発明は、これら問題点
に対して鋭意検討した結果、これらのセメント組成物に
対して高級脂肪酸のポリオキシエチレン エーテル又は
エステルもしくは高級脂肪酸のソルビタンエステル又は
ポリオキシエチレン ソルビタンエステルもしくはこれ
らの組み合わせ等（以下、該ノニオン界面活性剤と言
う）を添加することでコンプレックスが解消され、該縮
合物は本来の分散剤としての効果を発揮することがで
き、該セルロースは骨材や繊維の分離防止，粘結剤，保
水剤として本来の効果を発揮することが出来るようにな
ることを見いだし完成するにいたった。DISCLOSURE OF THE INVENTION As a result of intensive studies on these problems, the present invention has revealed that, with respect to these cement compositions, higher fatty acid polyoxyethylene ethers or esters or higher fatty acid sorbitan esters or polyoxys are used. By adding ethylene sorbitan ester or a combination thereof (hereinafter referred to as the nonionic surfactant), the complex is dissolved, and the condensate can exert its original effect as a dispersant. They found that they could exert their original effect as a preventive agent for the separation of aggregates and fibers, a binder, and a water retention agent, and completed the process.
【００１０】すなわち、本発明は該縮合物と該セルロー
スと水を含有するセメント系組成物に対して、該ノニオ
ン界面活性剤を添加することを特徴とするセメント組成
物に関するものである。That is, the present invention relates to a cement composition characterized in that the nonionic surfactant is added to the cement composition containing the condensate, the cellulose and water.
【００１１】本発明で使用する該縮合物は例えば次式The condensate used in the present invention has, for example, the following formula:
【化１】 [Chemical 1]
【化２】 で示されるものであり、花王社で市販しているマイテイ
１００，オデモールＮ等に相当するものである。減水効
果をもたらすに必要な添加量としては、セメント組成物
中に０．０５〜８％程度使用されるのが好ましい。[Chemical 2] And corresponds to Mighty 100, Odemol N, etc., which are commercially available from Kao Corporation. The amount of addition required to bring about the water reducing effect is preferably about 0.05 to 8% in the cement composition.
【００１２】本発明で使用されるアルキルセルロースと
しては水溶性メチルセルロースが、ヒドロキシアルキル
アルキルセルロースとしてはヒドロキシプロピルメチ
ルセルロース，ヒドロキシエチルメチルセルロース，ヒ
ドロキシエチルエチルセルロース等が挙げられる。その
添加量としては０．０５〜３％程度が骨材や繊維の分離
防止，粘結性付与に好適である。Examples of the alkyl cellulose used in the present invention include water-soluble methyl cellulose, and examples of the hydroxy alkyl alkyl cellulose include hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose and hydroxyethyl ethyl cellulose. The amount added is preferably about 0.05 to 3% for preventing the separation of aggregates and fibers and imparting caking property.
【００１３】高級脂肪酸のポリオキシエチレン エーテ
ルとしては、ポリオキシエチレンラウリルエーテル，ポ
リオキシエチレン ステアリルエーテル等があり、エス
テルとしてはポリオキシエチレン ラウレートやステア
レート等が挙げられる。また高級脂肪酸のソルビタン
エステル類としてはソルビタンステアリル エステル，
ポリオキシエチレン ソルビタン ステアリル エステ
ル等が挙げられる。高級脂肪酸の種類としては、ステア
リン酸やラウリル酸，オレイン酸等が挙げられる。Examples of polyoxyethylene ethers of higher fatty acids include polyoxyethylene lauryl ether and polyoxyethylene stearyl ether, and examples of esters include polyoxyethylene laurate and stearate. The higher fatty acid sorbitan
As the esters, sorbitan stearyl ester,
Examples thereof include polyoxyethylene sorbitan stearyl ester and the like. Examples of the higher fatty acid include stearic acid, lauric acid, and oleic acid.
【００１４】これらの該ノニオン界面活性剤の添加量と
しては、添加した該縮合物の１／２０から同量程度が該
セルロースとのコンプレックスを解消するのに好まし
い。この添加量より多くても不経済であり、少いと効果
を発揮しにくくなる。The amount of the nonionic surfactant added is preferably about 1/20 to about the same amount of the added condensate to eliminate the complex with the cellulose. It is uneconomical if it is added in excess of this amount, and it becomes difficult to exert its effect if it is too small.
【００１５】[0015]
【実施例】以下、本発明の実施例を比較例との対比によ
り説明するが、本発明はこれに限定されるものではな
い。表１，２に押出成形用組成物についての実施例１，
２および比較例１〜４を示した。表３にモルタル組成物
における実施例３および比較例５，６を示した。表４に
コンクリート組成物についての実施例４および比較例
７，８を示した。EXAMPLES Examples of the present invention will be described below in comparison with comparative examples, but the present invention is not limited thereto. Tables 1 and 2 show Example 1 for the composition for extrusion molding.
2 and Comparative Examples 1 to 4 are shown. Table 3 shows Example 3 and Comparative Examples 5 and 6 in the mortar composition. Table 4 shows Example 4 and Comparative Examples 7 and 8 for the concrete composition.
【００１６】（実施例１，２）表１および２に示す配合
のセメント系押出成形用組成物を、三上工業（株）製ニ
ーダールーラーにて混練を３分行った上、石川時（株）
製真空押出成形装置にて断面２０ｍｍ×４０ｍｍの押出
成形を行い、その成形性を評価した。さらに成形品を６
５℃で１００％相対湿度下で１０時間養生した後、オー
トクレーブで１７０℃／４．５気圧下で８時間養生した
後、前川式曲げ強度測定機にてＪＩＳＲ５２０１に基ず
き曲げ強度を測定した。(Examples 1 and 2) Cement-based extrusion molding compositions having the formulations shown in Tables 1 and 2 were kneaded for 3 minutes with a kneader ruler manufactured by Mikami Kogyo Co., Ltd. )
Extrusion molding with a cross section of 20 mm × 40 mm was performed with a vacuum extrusion molding apparatus, and the moldability was evaluated. Furthermore, 6 molded products
After curing for 10 hours at 5 ° C. and 100% relative humidity, after curing for 8 hours at 170 ° C./4.5 atm in an autoclave, the bending strength was measured with a Maekawa bending strength measuring machine based on JISR5201. .
【００１７】表１の実施例１と比較例１，２を対比する
と、該ノニオン界面活性剤を添加した実施例１は、水添
加量を下げても流動性の良い押出成形用組成物が得ら
れ、かつ成形養生品の強度も向上することが判かる。実
施例１に対して、セルロース種と界面活性剤種を代えて
実施した結果が表２である。実施例２と比較例３，４と
の対比においても、上記同様の効果が得られることが判
かる。Comparing Example 1 in Table 1 with Comparative Examples 1 and 2, in Example 1 containing the nonionic surfactant, an extrusion molding composition having good fluidity was obtained even if the amount of water added was reduced. It is found that the strength of the molded curing product is improved. Table 2 shows the results obtained by replacing Example 1 with the cellulose species and the surfactant species. It can be seen that the same effects as described above can be obtained in the comparison between Example 2 and Comparative Examples 3 and 4.
【００１８】（実施例３）表３に示す組成物をモルタル
ミキサーにて３分混合した後、ＪＩＳ Ｒ ５２０１に
準拠した方法でモルタルの流動性の指標であるフロー測
定を行った。（フロー値が大きい程流動性が高いことを
示す。） また、明和工業製モルタル吹きつけ装置ＤＭ
１５にてモルタル吹きつけ試験を行い、モルタルガンか
らモルタルが流れる流量を測定した。さらに４０ｍｍ×
２０ｍｍの断面のモルタル養生枠にモルタルを入れ、１
００％湿度下で４週間２５℃にて養生してＪＩＳ Ｒ５
２０１に従いモルタル曲げ強度を測定した。Example 3 The compositions shown in Table 3 were mixed in a mortar mixer for 3 minutes, and then flow measurement, which is an index of mortar fluidity, was carried out by a method according to JIS R5201. (The larger the flow value is, the higher the fluidity is.) Also, the mortar spraying device DM manufactured by Meiwa Kogyo
The mortar spraying test was conducted at 15, and the flow rate of the mortar flowing from the mortar gun was measured. 40mm ×
Put the mortar into the mortar curing frame with a cross section of 20 mm, 1
JIS R5 after curing at 25 ° C for 4 weeks under 00% humidity
According to No. 201, the mortar bending strength was measured.
【００１９】表３の実施例３と比較例５，６を対比する
と、該ノニオン界面活性剤を添加した実施例３は、水添
加量を下げても流動性の良いモルタル組成物の調整がで
き、かつ強度の高いモルタルが製造できることが判か
る。Comparing Example 3 in Table 3 with Comparative Examples 5 and 6, Example 3 containing the nonionic surfactant can prepare a mortar composition having good fluidity even if the amount of water added is reduced. It is clear that mortar with high strength can be manufactured.
【００２０】（実施例４）表４に示す組成でコンクリー
トミキサーによりコンクリートをねり、スランプフロー
による流動性の測定（スランプフロー値が高いほうが流
動性が良い）ならびにコンクリートを４週間養生した後
の圧縮強度を測定した。(Example 4) Concrete was mixed with a composition shown in Table 4 by a concrete mixer, the fluidity was measured by slump flow (the higher the slump flow value, the better the fluidity), and the compression after curing the concrete for 4 weeks. The strength was measured.
【００２１】表４の実施例４と比較例７，８を対比する
と、該ノニオン界面活性剤を添加した実施例４は、水添
加量を下げても流動性の良いコンクリート組成物をつく
ることができ、かつ養生体の強度も高いことが判かる。Comparing Example 4 in Table 4 with Comparative Examples 7 and 8, Example 4 containing the nonionic surfactant can produce a concrete composition having good fluidity even when the amount of water added is reduced. It can be seen that it is possible and that the strength of the living body is high.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【表２】 [Table 2]
【００２４】[0024]
【表３】 [Table 3]
【００２５】[0025]
【表４】 [Table 4]
【００２６】[0026]
【発明の効果】以上説明したように、本発明である該ノ
ニオン界面活性剤を添加したセメント組成物は、分散剤
として優れる該縮合物とバインダーとして優れる該セル
ロースをともに使用してもコンプレックスが形成されな
いため、優れた流動性を有しかつ骨材や繊維の分離抵抗
性，保水性にも優れるという利点がある。これによっ
て、水和硬化に必要な量以上の水の添加が不要となり、
硬化体の強度も良好なものを得ることができる。As described above, the cement composition containing the nonionic surfactant of the present invention forms a complex even when the condensate excellent as the dispersant and the cellulose excellent as the binder are used together. Therefore, there is an advantage that it has excellent fluidity, separation resistance of aggregates and fibers, and excellent water retention. This makes it unnecessary to add more water than necessary for hydration hardening,
It is possible to obtain a cured product having good strength.
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 14:06 16:02 Ｚ 16:06 24:38 Ｃ 24:22 Ｃ 24:32） Ａ 103:40 Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display area // (C04B 28/02 14:06 16:02 Z 16:06 24:38 C 24:22 C 24:32 ) A 103: 40
Claims (2)
アリルスルホン酸塩のホルマリン縮合物である分散剤と
セルロース系のバインダーと水を含有するセメント系組
成物において、高級脂肪酸のノニオン界面活性剤を添加
することを特徴とするセメント組成物。1. Alkyl group substitution or alkyl group non-substitution
A cement composition comprising a dispersant, which is a formalin condensate of allyl sulfonate, a cellulosic binder, and water, and a nonionic surfactant of a higher fatty acid is added to the cement composition.
ロース又はヒドロキシアルキルアルキル セルロースも
しくはこれら双方であり、高級脂肪酸のノニオン界面活
性剤が高級脂肪酸のポリオキシエチレン エーテル又は
エステルもしくは高級脂肪酸のソルビタンエステル又は
ポリオキシエチレン ソルビタンエステルもしくはこれ
ら界面活性剤の組み合わせ、からなるものである請求項
１に記載したセメント組成物。2. The cellulose-based bander is an alkyl cellulose or a hydroxyalkyl alkyl cellulose or both, and the higher fatty acid nonionic surfactant is a higher fatty acid polyoxyethylene ether or ester or a higher fatty acid sorbitan ester or polyoxyethylene. The cement composition according to claim 1, which comprises a sorbitan ester or a combination of these surfactants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22492293A JP3101788B2 (en) | 1993-07-26 | 1993-07-26 | Cement composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22492293A JP3101788B2 (en) | 1993-07-26 | 1993-07-26 | Cement composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0733502A true JPH0733502A (en) | 1995-02-03 |
| JP3101788B2 JP3101788B2 (en) | 2000-10-23 |
Family
ID=16821278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22492293A Expired - Lifetime JP3101788B2 (en) | 1993-07-26 | 1993-07-26 | Cement composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3101788B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100670091B1 (en) * | 2000-03-27 | 2007-01-17 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Binder for Hydraulic Composition and Hydraulic Composition |
| US7708826B2 (en) | 2001-03-02 | 2010-05-04 | James Hardie Technology Limited | Additive for dewaterable slurry and slurry incorporating same |
| US8993462B2 (en) | 2006-04-12 | 2015-03-31 | James Hardie Technology Limited | Surface sealed reinforced building element |
| US20180029936A1 (en) * | 2015-03-17 | 2018-02-01 | Kao Corporation | Dispersant composition for hydraulic composition |
| KR102001676B1 (en) * | 2018-02-01 | 2019-07-18 | (주) 선엔지니어링종합건축사사무소 | Concrete composite with recycled oil for proper air content |
| JP2020001982A (en) * | 2018-06-29 | 2020-01-09 | 花王株式会社 | Dispersant composition for hydraulic composition |
-
1993
- 1993-07-26 JP JP22492293A patent/JP3101788B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100670091B1 (en) * | 2000-03-27 | 2007-01-17 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Binder for Hydraulic Composition and Hydraulic Composition |
| US7708826B2 (en) | 2001-03-02 | 2010-05-04 | James Hardie Technology Limited | Additive for dewaterable slurry and slurry incorporating same |
| US8993462B2 (en) | 2006-04-12 | 2015-03-31 | James Hardie Technology Limited | Surface sealed reinforced building element |
| US20180029936A1 (en) * | 2015-03-17 | 2018-02-01 | Kao Corporation | Dispersant composition for hydraulic composition |
| US10322969B2 (en) * | 2015-03-17 | 2019-06-18 | Kao Corporation | Dispersant composition for hydraulic composition |
| KR102001676B1 (en) * | 2018-02-01 | 2019-07-18 | (주) 선엔지니어링종합건축사사무소 | Concrete composite with recycled oil for proper air content |
| JP2020001982A (en) * | 2018-06-29 | 2020-01-09 | 花王株式会社 | Dispersant composition for hydraulic composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3101788B2 (en) | 2000-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1251111B1 (en) | Hydraulic composition | |
| JPH10504791A (en) | Low shrinkage cement composition | |
| JP7228473B2 (en) | High-strength concrete containing steel fibers and its preparation method | |
| JP2003002721A (en) | Hydraulic composition for extrusion forming and hardened body thereof | |
| JP4407779B2 (en) | Binder for hydraulic composition for extrusion molding, hydraulic composition and method for producing extruded product | |
| JP2000203914A (en) | Composition for improving freezing/thawing durability of masonry unit containing efflorescence inhibitor based on fatty acid | |
| JPH0733502A (en) | Cement composition | |
| JP3215516B2 (en) | Hydraulic composition and method for producing concrete pile using the composition | |
| JPH1053448A (en) | Cement admixture and cemental composition for molding | |
| US6811605B2 (en) | Admixture and extrudable hydraulic composition | |
| JP2618366B2 (en) | Method for producing hydraulically cured product | |
| JPH07138060A (en) | Admixture for concrete, concrete mixture using the same and production of concrete | |
| JPH0755850B2 (en) | Admixture for cement extrusion products | |
| JP2812837B2 (en) | Extrusion molding method for cementitious materials | |
| JP2598966B2 (en) | Cement extrudate admixture | |
| KR102482686B1 (en) | Powder-type admixture composition for concrete comprising mixed powder and soluble packaging material | |
| JPH09249438A (en) | Admixture for cement-based material for extrusion molding and hardening of cement-based material for extrusion molding using the same | |
| JP2887561B2 (en) | Method for manufacturing high strength centrifugal concrete compact | |
| JP2918461B2 (en) | Admixture for concrete | |
| US6843845B2 (en) | Admixture and extrudable hydraulic composition | |
| JP2002012465A (en) | Extrusion compact and its manufacturing method | |
| JPH059052A (en) | Manufacture of concrete or mortar | |
| JPH0664951A (en) | Production of cement having low separability and production of concrete having low separability | |
| JPH0788834A (en) | Preparation of concrete | |
| JPH05319886A (en) | Composition for artificial stone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090825 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100825 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100825 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110825 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120825 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130825 Year of fee payment: 13 |
|
| EXPY | Cancellation because of completion of term |