JPH05193998A - Nonefflorescence cement - Google Patents
Nonefflorescence cementInfo
- Publication number
- JPH05193998A JPH05193998A JP6610492A JP6610492A JPH05193998A JP H05193998 A JPH05193998 A JP H05193998A JP 6610492 A JP6610492 A JP 6610492A JP 6610492 A JP6610492 A JP 6610492A JP H05193998 A JPH05193998 A JP H05193998A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- blast furnace
- portland cement
- efflorescence
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/21—Efflorescence resistance
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はノンエフロレッセンスセ
メントに係り、特に、特定ブレーン値の高炉水砕スラグ
微粉末を主原料とするノンエフロレッセンスセメントに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-efflorescence cement, and more particularly to a non-efflorescence cement mainly composed of granulated blast furnace granulated slag powder having a specific brane value.
【０００２】[0002]
【従来の技術】従来、コンクリート二次製品用の着色用
セメントとしては、通常、白色ポルトランドセメント及
びカラーセメントが使用されている。2. Description of the Related Art Conventionally, white portland cement and color cement have been generally used as coloring cements for secondary concrete products.
【０００３】[0003]
【発明が解決しようとする課題】白色ポルトランドセメ
ントやカラーセメントを使用する従来の着色用セメント
では、ポルトランドセメント使用に起因する水酸化カル
シウムによるエフロレッセンス（白華）が著しく、これ
が製品価値を減じていた。In the conventional coloring cement using white Portland cement or color cement, efflorescence (white flower) due to calcium hydroxide due to the use of Portland cement is remarkable, which reduces the product value. It was
【０００４】本発明は上記従来の問題点を解決するノン
エフロレッセンスセメントを提供することを目的とす
る。An object of the present invention is to provide a non-efflorescence cement which solves the above-mentioned conventional problems.
【０００５】[0005]
【課題を解決するための手段】請求項１のノンエフロレ
ッセンスセメントは高炉水砕スラグ粉末を粉砕及び／又
は分級して得られたブレーン値７０００〜１５０００ｃ
ｍ2 ／ｇの高炉水砕スラグ微粉末６０〜９７重量％とポ
ルトランドセメント４０〜３重量％とを配合してなるこ
とを特徴とする。The non-efflorescence cement according to claim 1 has a Blaine value of 7000 to 15000c obtained by crushing and / or classifying granulated blast furnace slag powder.
characterized in that by blending a m 2 / g 60 to 97 wt% granulated blast furnace slag fine powder of Portland cement 40-3 wt%.
【０００６】請求項２のノンエフロレッセンスセメント
は、請求項１のノンエフロレッセンスセメントにおい
て、反応促進用のアルカリ剤を２０重量％以下添加して
なることを特徴とする。The non-efflorescence cement according to claim 2 is characterized in that, in the non-efflorescence cement according to claim 1, 20% by weight or less of an alkaline agent for accelerating the reaction is added.
【０００７】請求項３のノンエフロレッセンスセメント
は、請求項１又は２のノンエフロレッセンスセメントに
おいて、乾燥収縮低減材を２０重量％以下添加してなる
ことを特徴とする。The non-efflorescence cement of claim 3 is characterized in that the non-efflorescence cement of claim 1 or 2 is obtained by adding 20% by weight or less of a dry shrinkage reducing material.
【０００８】請求項４のノンエフロレッセンスセメント
は、請求項１ないし３のノンエフロレッセンスセメント
において、流動性改善剤を１重量％以下添加してなるこ
とを特徴とする。The non-efflorescence cement according to claim 4 is characterized in that the non-efflorescence cement according to claims 1 to 3 is obtained by adding 1% by weight or less of a fluidity improving agent.
【０００９】請求項５のノンエフロレッセンスセメント
は、請求項１ないし４のノンエフロレッセンスセメント
において、ポルトランドセメントが白色ポルトランドセ
メントであることを特徴とする。The non-efflorescence cement of claim 5 is characterized in that, in the non-efflorescence cement of claims 1 to 4, the portland cement is white portland cement.
【００１０】以下に本発明を詳細に説明する。The present invention will be described in detail below.
【００１１】本発明においては、通常の手段によって粉
砕された高炉水砕スラグ粉末を、再粉砕及び／又は分級
手段等の粒度調整処理を施すことにより、ブレーン値で
７０００〜１５０００ｃｍ2 ／ｇの比表面積となる粒度
に調整した高炉水砕スラグ微粉末を主成分として用い
る。In the present invention, the granulated blast furnace slag powder crushed by a usual means is subjected to a particle size adjusting treatment such as re-grinding and / or classifying means to obtain a Blaine value of 7,000 to 15,000 cm 2 / g. Blast-furnace granulated slag fine powder adjusted to a particle size to be the surface area is used as the main component.
【００１２】この高炉水砕スラグ微粉末の調整に用いる
高炉水砕スラグは、いわゆる高炉製錬に際して副生され
た高炉水砕スラグであれば良く、特に制限はない。The granulated blast furnace slag used for preparing the fine powder of granulated blast furnace slag may be any granulated blast furnace slag produced as a by-product during so-called blast furnace smelting and is not particularly limited.
【００１３】使用する高炉水砕スラグ微粉末のブレーン
値が７０００ｃｍ2 ／ｇ未満であると、強度が低下し、
白色度も低く好ましくない。また、ブレーン値が１５０
００ｃｍ2 ／ｇを超えても、性状の飛躍的な向上は望め
ず、粉砕コスト面で不利である。このため、本発明にお
いては、ブレーン値７０００〜１５０００ｃｍ2 ／ｇの
高炉水砕スラグ微粉末を用いる。If the Blaine value of the ground granulated blast furnace slag used is less than 7,000 cm 2 / g, the strength is lowered,
The whiteness is also low, which is not preferable. Also, the brain value is 150
Even if it exceeds 00 cm 2 / g, no dramatic improvement in properties can be expected, which is disadvantageous in terms of crushing cost. Therefore, in the present invention, granulated blast furnace granulated slag having a Blaine value of 7,000 to 15,000 cm 2 / g is used.
【００１４】本発明においては、このような高炉水砕ス
ラグ微粉末６０〜９７重量％とポルトランドセメント、
好ましくは、白色ポルトランドセメント４０〜３重量％
とを配合する。高炉水砕スラグ微粉末の配合量が６０重
量％未満の場合には本発明による水酸化カルシウム量低
下の効果が十分でなく、９７重量％を超えると強度が低
下するため好ましくない。また、ポルトランドセメント
の配合量が３％未満の場合には強度が低く、４０重量％
を超えると本発明による水酸化カルシウム量低下の効果
が十分に得られない。In the present invention, 60 to 97% by weight of such granulated blast furnace granulated slag and Portland cement are used.
Preferably, white Portland cement 40 to 3% by weight
And mix. When the content of the granulated blast furnace granulated slag is less than 60% by weight, the effect of reducing the amount of calcium hydroxide according to the present invention is not sufficient, and when it exceeds 97% by weight, the strength is reduced, which is not preferable. When the content of Portland cement is less than 3%, the strength is low and 40% by weight
If it exceeds, the effect of reducing the amount of calcium hydroxide according to the present invention cannot be sufficiently obtained.
【００１５】本発明のノンエフロレッセンスセメントに
おいては、高炉水砕スラグ微粉末及びポルトランドセメ
ントと共に、目的に応じて更に反応促進用のアルカリ
剤、乾燥収縮低減材、流動性改善材を配合しても良い。In the non-efflorescence cement of the present invention, an alkaline agent, a drying shrinkage reducing material and a fluidity improving material for accelerating the reaction may be blended with the ground granulated blast furnace slag powder and Portland cement according to the purpose. good.
【００１６】反応促進用のアルカリ剤としては、水酸化
アルカリ、硫酸アルカリ等を使用することができ、その
配合量は２０重量％以下が好ましい。As the alkali agent for accelerating the reaction, alkali hydroxide, alkali sulfate or the like can be used, and the blending amount thereof is preferably 20% by weight or less.
【００１７】乾燥収縮低減材としては、炭酸カルシウ
ム、無水石こう、フライアッシュ等を使用することがで
き、その配合量は２０重量％以下が好ましい。また、乾
燥収縮低減材の粒度はブレーン値で３５００〜８０００
ｃｍ2 ／ｇ程度が好ましい。As the drying shrinkage reducing material, calcium carbonate, anhydrous gypsum, fly ash and the like can be used, and the blending amount thereof is preferably 20% by weight or less. The grain size of the dry shrinkage reducing material is 3500 to 8000 in terms of Blaine value.
It is preferably about cm 2 / g.
【００１８】流動性改善剤としては、ジエチレングリコ
ール、トリエタノールアミン等を使用することができ、
これらは１重量％以下の添加で著しく粉体の流動特性を
向上させることができる。As the fluidity improver, diethylene glycol, triethanolamine or the like can be used,
Addition of 1% by weight or less of these can remarkably improve the flow characteristics of the powder.
【００１９】[0019]
【作用】白色度の高い高炉水砕スラグ微粉末を主原料と
する本発明のノンエフロレッセンスセメントは、従来の
着色用セメントにはない独特の着色性能を有する上、添
加したポルトランドセメントの水和による副生物として
発生する水酸化カルシウムが、高炉水砕スラグの水和に
消費されるため白華が防止される。しかも、使用する高
炉水砕スラグ粉末が微粉末であるために、硬化体組織が
緻密化することにより、白華防止効果が一層強化され
る。従って、本発明によれば独特の着色性能を有し、水
密性が高く、著しく良好な白華防止効果を有するノンエ
フロレッセンスセメントが提供される。The non-efflorescence cement of the present invention, which is mainly composed of ground granulated blast furnace slag having a high whiteness, has a unique coloring performance not found in conventional coloring cements, and hydration of the added Portland cement. Calcium hydroxide, which is generated as a by-product of the above, is consumed for the hydration of the granulated blast furnace slag, so that white flower is prevented. In addition, since the granulated blast furnace slag powder used is a fine powder, the hardened body structure is densified, so that the effect of preventing white sinter is further enhanced. Therefore, according to the present invention, there is provided a non-efflorescence cement having a unique coloring performance, high watertightness, and a remarkably good effect of preventing white sinter.
【００２０】特に、ポルトランドセメントとして、白色
ポルトランドセメントを用いることにより、白色度はよ
り一層改善される。In particular, the whiteness is further improved by using white Portland cement as the Portland cement.
【００２１】[0021]
【実施例】以下に、実施例を挙げて本発明をより具体的
に説明するが、本発明はその要旨を超えない限り、以下
の実施例により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 to the following examples as long as the gist thereof is not exceeded.
【００２２】実施例１ 表１に示す配合の試料を各々調整し、各試料について、
諸特性を調べた。なお、表１中、記号Ｐ１００は普通ポ
ルトランドセメント単味、Ｗ１００は白色ポルトランド
セメント単味を示す。またＤＥＧはジエチレングリコー
ルであり、スラグは高炉水砕スラグ粉末、Ｗ１００以外
のセメントは普通ポルトランドセメントである。また、
硫酸アルカリとしては硫酸ナトリウムを用いた。Example 1 Samples having the formulations shown in Table 1 were prepared, and for each sample,
Various characteristics were investigated. In Table 1, the symbol P100 indicates plain Portland cement alone, and W100 indicates white Portland cement alone. Also, DEG is diethylene glycol, slag is granulated blast furnace slag powder, and cement other than W100 is ordinary Portland cement. Also,
Sodium sulfate was used as the alkali sulfate.
【００２３】[0023]
【表１】 [Table 1]
【００２４】 セメントの白色度測定 表１に示す各試料について、東京電色（株）製の全自動
色差計を用いて白色度を測定した。測定結果を表２に示
す。Whiteness Measurement of Cement The whiteness of each sample shown in Table 1 was measured using a fully automatic color difference meter manufactured by Tokyo Denshoku Co., Ltd. The measurement results are shown in Table 2.
【００２５】 モルタルの圧縮強度試験 表１に示す各試料を用いて、ＪＩＳ−Ｒ−５２０１に準
じてモルタルの圧縮強度を測定した。普通ポルトランド
セメント（Ｐ１００）モルタルの圧縮強度を１００とし
た場合の圧縮強度比を表２に示す。Mortar Compressive Strength Test Using each sample shown in Table 1, the mortar compressive strength was measured according to JIS-R-5201. Table 2 shows the compressive strength ratio when the compressive strength of ordinary Portland cement (P100) mortar is 100.
【００２６】[0026]
【表２】 [Table 2]
【００２７】表２より、明らかなように、高炉水砕スラ
グ粉末のブレーン値が７０００ｃｍ2 ／ｇ未満の場合に
は、全配合において強度が低下し、白色度も低い。ま
た、ブレーン値が１５０００ｃｍ2 ／ｇを超えても性状
の飛躍的な向上は望めない。また、高炉水砕スラグ粉末
の使用量が６０重量％未満の場合には白色度が低下し、
逆に９７重量％を超えると強度が低下する。以上の実験
結果から、高炉水砕スラグ粉末は粒度が比表面積のブレ
ーン値で７０００〜１５０００ｃｍ2 ／ｇが好ましく、
使用量は６０〜９７重量％が好適であることが分かる。As is clear from Table 2, when the Blaine value of the granulated blast furnace slag powder is less than 7,000 cm 2 / g, the strength is lowered and the whiteness is low in all the blends. Further, even if the Blaine value exceeds 15,000 cm 2 / g, no dramatic improvement in properties can be expected. When the amount of the granulated blast furnace slag powder is less than 60% by weight, the whiteness is lowered,
On the contrary, if it exceeds 97% by weight, the strength is lowered. From the above experimental results, the particle size of the granulated blast furnace slag powder is preferably 7,000 to 15,000 cm 2 / g in terms of Blaine value of specific surface area,
It can be seen that the amount used is preferably 60 to 97% by weight.
【００２８】 エフロレッセンス発生試験 表３に示す各試料について、（財）建材試験センター法
に準じてエフロレッセンス発生試験を行なった。供試体
の養生条件は７℃、６０％Ｒ．Ｈ．とした。測定結果を
表３に示す。なお、表３，４，７中、記号ＳＰ１００は
高炉セメントＢ種である。Efflorescence Generation Test Each sample shown in Table 3 was subjected to an efflorescence generation test according to the Building Material Testing Center Method. The curing conditions for the test piece were 7 ° C and 60% R.V. H. And The measurement results are shown in Table 3. In Tables 3, 4, and 7, the symbol SP100 is blast furnace cement type B.
【００２９】[0029]
【表３】 [Table 3]
【００３０】表３より、本発明によるノンエフロレッセ
ンスセメントは、従来のセメントに比べて極めて白華防
止効果が高いことが明らかである。From Table 3, it is clear that the non-efflorescence cement according to the present invention has an extremely high effect of preventing white fluff as compared with the conventional cement.
【００３１】 モルタルの長さ変化試験 表４に示す各試料について、ＪＩＳ−Ａ−１１２９に準
じてモルタルの長さ変化を測定した。測定結果を表４に
示す。Mortar Length Change Test For each sample shown in Table 4, the mortar length change was measured according to JIS-A-1129. The measurement results are shown in Table 4.
【００３２】[0032]
【表４】 [Table 4]
【００３３】表４より明らかなように、無水石膏の添加
率が増加するに伴ってモルタルの乾燥収縮率は低下し
た。しかし、更に添加率を３０％に増やしても、それ以
上の効果は見られなかった。As is clear from Table 4, the dry shrinkage of mortar decreased as the addition rate of anhydrous gypsum increased. However, even if the addition rate was further increased to 30%, no further effect was observed.
【００３４】実施例２ 表５に示す配合の試料を各々調整し、各試料について、
実施例１と同様に諸特性を調べ、結果を表６に示した。
なお、表５中、記号Ｐ１００は普通ポルトランドセメン
ト単味、Ｗ１００は白色ポルトランドセメント単味を示
す。またＤＥＧはジエチレングリコールであり、スラグ
は高炉水砕スラグ粉末、Ｐ１００以外のセメントは白色
ポルトランドセメントである。また、硫酸アルカリとし
ては硫酸ナトリウムを用いた。Example 2 Samples having the formulations shown in Table 5 were prepared, and
Various properties were examined in the same manner as in Example 1, and the results are shown in Table 6.
In Table 5, the symbol P100 indicates plain Portland cement alone, and W100 indicates white Portland cement alone. Also, DEG is diethylene glycol, slag is granulated blast furnace slag powder, and cement other than P100 is white Portland cement. In addition, sodium sulfate was used as the alkali sulfate.
【００３５】[0035]
【表５】 [Table 5]
【００３６】[0036]
【表６】 [Table 6]
【００３７】表６から、白色ポルトランドセメントを用
いた場合においても、高炉水砕スラグ粉末のブレーン値
が７０００ｃｍ2 ／ｇ未満の場合には、全配合において
強度が低下し、白色度も低い。また、ブレーン値が１５
０００ｃｍ2 ／ｇを超えても性状の飛躍的な向上は望め
ない。また、高炉水砕スラグ粉末の使用量が６０重量％
未満の場合には白色度が低下し、逆に９７重量％を超え
ると強度が低下する。以上の実験結果から、高炉水砕ス
ラグ粉末は粒度が比表面積のブレーン値で７０００〜１
５０００ｃｍ2 ／ｇが好ましく、使用量は６０〜９７重
量％が好適であることが分かる。From Table 6, even when the white Portland cement is used, when the Blaine value of the granulated blast furnace slag powder is less than 7,000 cm 2 / g, the strength is lowered and the whiteness is low in all the blends. Also, the brain value is 15
Even if it exceeds 000 cm 2 / g, no dramatic improvement in properties can be expected. The amount of granulated blast furnace slag powder is 60% by weight.
When the amount is less than 100%, the whiteness decreases, and when it exceeds 97% by weight, the strength decreases. From the above experimental results, the granulated blast furnace slag powder has a grain size of 7,000 to 1 in terms of Blaine value of specific surface area.
It is understood that 5000 cm 2 / g is preferable, and the amount used is preferably 60 to 97% by weight.
【００３８】なお、表２と表６の比較から、ポルトラン
ドセメントとして白色ポルトランドセメントを用いるこ
とにより、より一層白色度が改善されることが明らかで
ある。From the comparison between Tables 2 and 6, it is clear that the whiteness is further improved by using white Portland cement as Portland cement.
【００３９】また、表７に示す各試料について、実施例
１と同様にしてエフロレッセンス発生試験を行ない、結
果を表７に示した。表７より、白色ポルトランドセメン
トを用いた場合においても、従来のセメントに比べて極
めて白華防止効果が高いことが明らかである。Further, each sample shown in Table 7 was subjected to an efflorescence generation test in the same manner as in Example 1, and the results are shown in Table 7. From Table 7, it is clear that even when the white Portland cement is used, the effect of preventing white fluff is much higher than that of the conventional cement.
【００４０】[0040]
【表７】 [Table 7]
【００４１】[0041]
【発明の効果】以上詳述した通り、本発明のノンエフロ
レッセンスセメントによれば、白華防止効果に著しく優
れ、かつ、独特の着色性能を有するノンエフロレッセン
スセメントが提供される。特に、ポルトランドセメント
として、白色ポルトランドセメントを用いることによ
り、白色度はより一層改善される。As described in detail above, according to the non-efflorescence cement of the present invention, a non-efflorescence cement having a remarkably excellent whitening prevention effect and a unique coloring performance is provided. In particular, the whiteness is further improved by using white Portland cement as the Portland cement.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩本 春美 福岡県北九州市八幡西区洞南町１番地１ 三菱マテリアル株式会社九州事業所開発研 究部内 (72)発明者 三小田 典史 福岡県北九州市八幡西区洞南町１番地１ 三菱マテリアル株式会社九州事業所開発研 究部内 (72)発明者 塚本 裕二 福岡県北九州市八幡西区洞南町１番地１ 三菱マテリアル株式会社九州事業所開発研 究部内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Harumi Iwamoto Inventor Haruna Iwamoto, Kitakyushu, Fukuoka, 1-1 Minami-cho, Yawatanishi-ku, Fukuoka Mitsubishi Materials Corporation Kyushu Plant Development Research Dept. 1 Minami-cho 1 Mitsubishi Materials Corporation Kyushu Works Development Research Department (72) Inventor Yuji Tsukamoto 1-chome, Minami-cho, Yawatanishi-ku, Kitakyushu City, Fukuoka Prefecture 1 Mitsubishi Materials Corporation Kyushu Operations Development Research Department
Claims (5)
級して得られたブレーン値７０００〜１５０００ｃｍ2
／ｇの高炉水砕スラグ微粉末６０〜９７重量％とポルト
ランドセメント４０〜３重量％とを配合してなることを
特徴とするノンエフロレッセンスセメント。1. A Blaine value 7,000 to 15,000 cm 2 obtained by crushing and / or classifying granulated blast furnace slag powder.
A non-efflorescence cement characterized by comprising 60-97% by weight of granulated blast furnace granulated slag / g / g and Portland cement 40-3% by weight.
下添加してなる請求項１に記載のノンエフロレッセンス
セメント。2. The non-efflorescence cement according to claim 1, wherein an alkali agent for accelerating the reaction is added in an amount of 20% by weight or less.
てなる請求項１又は２に記載のノンエフロレッセンスセ
メント。3. The non-efflorescence cement according to claim 1, which further comprises a dry shrinkage reducing material in an amount of 20% by weight or less.
る請求項１ないし３のいずれか１項に記載のノンエフロ
レッセンスセメント。4. The non-efflorescence cement according to any one of claims 1 to 3, which comprises 1% by weight or less of a fluidity improver.
ドセメントであることを特徴とする請求項１ないし４の
いずれか１項に記載のノンエフロレッセンスセメント。5. The non-efflorescence cement according to any one of claims 1 to 4, wherein the Portland cement is white Portland cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6610492A JP3180417B2 (en) | 1991-11-18 | 1992-03-24 | Non-Efflorescence cement |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3-301855 | 1991-11-18 | ||
| JP30185591 | 1991-11-18 | ||
| JP6610492A JP3180417B2 (en) | 1991-11-18 | 1992-03-24 | Non-Efflorescence cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05193998A true JPH05193998A (en) | 1993-08-03 |
| JP3180417B2 JP3180417B2 (en) | 2001-06-25 |
Family
ID=26407284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6610492A Expired - Lifetime JP3180417B2 (en) | 1991-11-18 | 1992-03-24 | Non-Efflorescence cement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3180417B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102214A (en) * | 2007-12-28 | 2009-05-14 | Machida Corporation Kk | Concrete block |
| JP2011190139A (en) * | 2010-03-15 | 2011-09-29 | Tsuge Sekizai Kk | Efflorescence suppressing cement and efflorescence suppressing mortar, or efflorescence suppressing concrete |
| KR20230031468A (en) * | 2021-08-27 | 2023-03-07 | (주)케이씨엠 | White cement composition comprising calcium carbonate |
-
1992
- 1992-03-24 JP JP6610492A patent/JP3180417B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102214A (en) * | 2007-12-28 | 2009-05-14 | Machida Corporation Kk | Concrete block |
| JP2011190139A (en) * | 2010-03-15 | 2011-09-29 | Tsuge Sekizai Kk | Efflorescence suppressing cement and efflorescence suppressing mortar, or efflorescence suppressing concrete |
| KR20230031468A (en) * | 2021-08-27 | 2023-03-07 | (주)케이씨엠 | White cement composition comprising calcium carbonate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3180417B2 (en) | 2001-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3975087B2 (en) | High performance concrete | |
| JP4585905B2 (en) | Mortar or concrete | |
| CA1090835A (en) | Hydraulic cement mixes and process for improving hydraulic cement mixes | |
| JPH06100338A (en) | Highly fluid cement | |
| JPH05193998A (en) | Nonefflorescence cement | |
| JP2000281413A (en) | Cement admixture and cement composition | |
| JP3970616B2 (en) | High performance concrete | |
| JP3338843B2 (en) | Cement admixture and cement composition | |
| JP2001130932A (en) | Cement and method for producing the same | |
| JP4164229B2 (en) | Cement composition | |
| JPH0643265B2 (en) | Quick-setting cement composition | |
| JP4453098B2 (en) | Low heat generation cement consisting of high phosphorus content clinker and blast furnace slag fine powder | |
| JPS63129052A (en) | Cementitious self-leveling material composition | |
| JPH01242445A (en) | Hydraulic cement composition | |
| SU1698216A1 (en) | Concrete mix | |
| JP4453097B2 (en) | Method for producing low heat generation cement with high phosphorus content | |
| JP2000281416A (en) | Hydraulic composition | |
| JP7134668B2 (en) | Cement-based solidifying material composition | |
| JPH04260645A (en) | Production of hydraulic composition and cured product | |
| JP3543828B2 (en) | Cement admixture and cement composition | |
| JP3082861B2 (en) | Hydraulic composition for high-strength concrete and method for producing high-strength mortar or concrete | |
| JPS63285138A (en) | Grinding aid for cement clinker and blast furnace slag | |
| JP2001163655A (en) | Hydraulic composition | |
| JP3203505B2 (en) | Method for improving fluidity, admixture thereof and cement composition | |
| JP3573469B2 (en) | Cement admixture and cement composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010321 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080420 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090420 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090420 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100420 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100420 Year of fee payment: 9 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100420 Year of fee payment: 9 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110420 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120420 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term |