JP2772817B2 - Cement composition - Google Patents
Cement compositionInfo
- Publication number
- JP2772817B2 JP2772817B2 JP1096850A JP9685089A JP2772817B2 JP 2772817 B2 JP2772817 B2 JP 2772817B2 JP 1096850 A JP1096850 A JP 1096850A JP 9685089 A JP9685089 A JP 9685089A JP 2772817 B2 JP2772817 B2 JP 2772817B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- cement
- fine powder
- cement composition
- water
- 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.)
- Expired - Fee Related
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
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)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、セメント組成物に関し、詳しくは、水硬性
セメント，シリコーンオイルと比表面積50m2/g以上の無
機質微粉末および必要に応じて骨材からなり、加水によ
り硬化する、セメント組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cement composition, and more particularly, to a hydraulic cement, silicone oil, an inorganic fine powder having a specific surface area of 50 m 2 / g or more, and a bone if necessary. The present invention relates to a cement composition consisting of a material and being hardened by water.
水硬性セメントは、砂，ケイ砂，砕砂などとの混合物
であるモルタルとして、また、砂，ケイ砂や砕砂と砂利
や砕石との混合であるコンクリートとして、また、砂，
ケイ砂，砕砂などと発泡剤との混合物を水蒸気養生して
なるALCとして土木や建築の分野において広く使用され
ている。Hydraulic cement is used as mortar, which is a mixture of sand, silica sand, crushed sand, etc., and concrete, which is a mixture of sand, silica sand, crushed sand and gravel or crushed stone,
ALC obtained by steam-curing a mixture of silica sand, crushed sand, etc. and a blowing agent is widely used in the fields of civil engineering and construction.
しかし、これら水硬性セメント組成物の硬化体は防水
性，撥水性がまったくない。However, the cured products of these hydraulic cement compositions have no waterproofness and water repellency.
そこで、オルガノトリアルコキシシラン，メチルポリ
シロキサンエマルジョン、あるいはオルガノハロシラン
処理ケイ酸微粉末を配合して防水性，撥水性を付与する
ことが提案されている（特公昭31−4134,特公昭36−537
9,特公昭47−26650参照）。In view of this, it has been proposed to impart water resistance and water repellency by blending organotrialkoxysilane, methylpolysiloxane emulsion, or organohalosilane-treated silicic acid fine powder (Japanese Patent Publication Nos. 31-4134 and 36-36). 537
9, see Japanese Patent Publication No. 47-26650).
しかしながら、オルガノトリアルコキシシランは水に
不溶性もしくは難溶性の液体であるためセメント組成物
と均一に混合することがむつかしく、そのため防水性，
撥水性が局部的にしか向上しないという欠点がある。However, since organotrialkoxysilanes are insoluble or hardly soluble liquids in water, they are difficult to mix uniformly with the cement composition, and therefore have a waterproof property.
There is a disadvantage that the water repellency is only improved locally.
また、メチルポリシロキサンエマルジョンやオルガノ
ハロシラン処理ケイ酸微粉末は、防水性，撥水性の向上
効果が十分でないという欠点がある。In addition, methylpolysiloxane emulsions and organohalosilane-treated silicic acid fine powders have a drawback that the effect of improving waterproofness and water repellency is not sufficient.
また、いずれの添加剤も塩化物イオン浸透に対する抵
抗性（以下「浸透抵抗性」という）や大気中の二酸化炭
素ガスによる中性化に対する抵抗性（以下「中和抵抗
性」という）の向上効果が十分でないという欠点があ
る。In addition, each additive has the effect of improving the resistance to chloride ion penetration (hereinafter referred to as “penetration resistance”) and the resistance to neutralization by carbon dioxide gas in the atmosphere (hereinafter referred to as “neutralization resistance”). Is not sufficient.
本発明は、取り扱いが容易であり、水硬性セメントと
きわめて混ざりやすく、防水性，撥水性のみならず浸透
抵抗性や中和抵抗性のすぐれたセメント硬化体を与える
セメント組成物を提供することを目的とする。An object of the present invention is to provide a cement composition which is easy to handle, is extremely easily mixed with hydraulic cement, and provides a hardened cement body having not only waterproofness and water repellency but also excellent penetration resistance and neutralization resistance. Aim.
この目的は、（イ）水硬性セメント100重量部、
（ロ）シリコーンオイルと比表面積50m2/g以上の無機質
微粉末の粉状混合物0.2〜10重量部、および必要に応じ
て（ハ）骨材からなる、セメント組成物によって達成さ
れる。The purpose is (a) 100 parts by weight of hydraulic cement,
This is achieved by a cement composition comprising (b) 0.2 to 10 parts by weight of a powdery mixture of a silicone oil and an inorganic fine powder having a specific surface area of 50 m 2 / g or more, and if necessary (c) an aggregate.
これを説明するに、（イ）成分としての水硬性セメン
トは本発明のセメント組成物の主体となる成分であり、
水を添加して混合し放置すると硬化する。これにはポル
トランドセメント，高炉セメント，シリカセメント，フ
ライアッシュセメント，アルミナセメント，超速硬セメ
ントなどが例示される。To explain this, hydraulic cement as the component (a) is a component that is a main component of the cement composition of the present invention,
It hardens when water is added, mixed and left to stand. Examples thereof include Portland cement, blast-furnace cement, silica cement, fly ash cement, alumina cement, and ultra-hard cement.
（ロ）成分は、本発明のセメント組成物の特徴をなす
成分である。The component (b) is a component that characterizes the cement composition of the present invention.
（ロ）成分としてのシリコーンオイルと比表面積50m2
/g以上の無機質微粉末の粉状混合物は、セメント組成物
の水和硬化体の浸透抵抗性、中和抵抗性、および防水
性、特には浸透抵抗性を向上させる作用をする。(B) Silicone oil as component and specific surface area 50m 2
The powdery mixture of the inorganic fine powder of not less than / g acts to improve the penetration resistance, neutralization resistance, and waterproofness, particularly, the penetration resistance of the hydrated cured product of the cement composition.
シリコーンオイルは一般に疎水性であるために水硬性
セメントのみ、あるいは、水硬性セメントおよび水とと
もに混ぜようとしても混ざりにくく、無理やり混ぜよう
とすると混合物中に局在化し、水和硬化体の浸透抵抗
性、中和抵抗性、防水性のいずれも部分的にしか向上し
ない。しかるに、シリコーンオイルと比表面積50m2/g以
上の無機質微粉末の粉状混合物は水硬性セメントと極め
て混ざりやすく、混合物中に均一に分布して水和硬化体
の防水性を向上させるのみならず、浸透抵抗性および中
和抵抗性、特には浸透抵抗性を著しく向上させる。Silicone oil is generally hydrophobic, so it is difficult to mix with hydraulic cement alone or with hydraulic cement and water. , Neutralization resistance and waterproofness are only partially improved. However, a powdery mixture of silicone oil and an inorganic fine powder having a specific surface area of 50 m 2 / g or more is extremely easily mixed with hydraulic cement, and is not only distributed uniformly in the mixture but also improves the waterproofness of the hydrated cured product. , Significantly enhances osmotic and neutralization resistance, especially osmosis resistance.
（ロ）成分を構成するシリコーンオイルとして、ジメ
チルポリシロキサンオイル，メチルフェニルポリシロキ
サンオイル，メチルアルキルポリシロキサンオイル（こ
こでアルキル基は炭素原子数２以上である），メチルア
ラルキルポリシロキサンオイル，メチルビニルポリシロ
キサンオイル，メチル（3,3,3−トリフルオロプロピ
ル）ポリシロキサンオイルが例示され、これらシリコー
ンオイルの末端封鎖基としてジメチルオルガノシロキシ
基（ここで有機基はメチル基，フェニル基，炭素原子数
２以上のアルキル基が例示される）、水酸基，アルコキ
シ基が例示され、これらシリコーンオイルの粘度は25℃
において5cst以上が好ましく、10〜100,000cstがより好
ましい。シリコーンオイルは２種以上のものを併用して
もよい。(Ii) Dimethyl polysiloxane oil, methyl phenyl polysiloxane oil, methyl alkyl polysiloxane oil (where the alkyl group has 2 or more carbon atoms), methyl aralkyl polysiloxane oil, methyl vinyl Examples include polysiloxane oil and methyl (3,3,3-trifluoropropyl) polysiloxane oil, and a dimethylorganosiloxy group (here, an organic group is a methyl group, a phenyl group, a carbon atom number) as a terminal blocking group of these silicone oils. Two or more alkyl groups are exemplified), a hydroxyl group and an alkoxy group are exemplified, and the viscosity of these silicone oils is 25 ° C.
Is preferably 5 cst or more, more preferably 10 to 100,000 cst. Two or more silicone oils may be used in combination.
（ロ）成分を構成する比表面積50m2/g以上の無機質微
粉末はシリコーンオイルを担持し、かつ、シリコーンオ
イルを担持した無機質微粉末をおおって粉状とする作用
をすると考えられる。比表面積50m2/g以上の無機質微粉
末として、ヒュームドシリカ，湿式法シリカ，シリカア
エロゲル，炭酸カルシウム微粉末，炭酸マグネシウム微
粉末，ヒュームド二酸化チタンが例示されるが、シリコ
ーンオイルの担持量の点から比表面積150m2/g以上のシ
リカ系微粉末が好ましい。It is considered that the inorganic fine powder having a specific surface area of 50 m 2 / g or more, which constitutes the component (b), carries a silicone oil and acts to cover the inorganic fine powder carrying the silicone oil to form a powder. Examples of the inorganic fine powder having a specific surface area of 50 m 2 / g or more include fumed silica, wet-process silica, silica aerogel, calcium carbonate fine powder, magnesium carbonate fine powder, and fumed titanium dioxide. From the viewpoint, silica-based fine powder having a specific surface area of 150 m 2 / g or more is preferable.
（ロ）成分を構成するシリコーンオイルと無機質微粉
末の比率は、両者の混合物が粉状となれば、特に限定さ
れない。両者の好ましい比率はシリコーンオイルの粘度
や無機質微粉末の吸油量，粒径，比表面積などによって
異なるが、一般に重量比でシリコーンオイル対無機質微
粉末が（8:2）〜（1:9）であり、より好ましくは（7:
3）〜（3:7）である。(B) The ratio of the silicone oil and the inorganic fine powder constituting the component is not particularly limited as long as the mixture of the two becomes powder. The preferred ratio of the two depends on the viscosity of the silicone oil, the oil absorption of the inorganic fine powder, the particle size, the specific surface area, etc. In general, the weight ratio of the silicone oil to the inorganic fine powder is (8: 2) to (1: 9). Yes, more preferably (7:
3) to (3: 7).
（ロ）成分は、水硬性セメントとの混合性の点から、
流動性が大きいことが好ましい。The component (b) is mixed with hydraulic cement,
It is preferable that the fluidity is large.
（ロ）成分は、無機質微粉末を高速ミキサー中で撹拌
しつつシリコーンオイルをじょじょに滴下することによ
り容易に製造される。The component (b) is easily produced by dropping silicone oil slowly while stirring the inorganic fine powder in a high-speed mixer.
（ロ）成分は、セメント組成物の水和硬化体の防水
性，浸透抵抗性，中和抵抗性などの点から、水硬性セメ
ントの0.2〜10重量％であることが好ましく。シリコー
ンオイルが水硬性セメントの0.1〜６重量％であること
が好ましい。The component (b) is preferably 0.2 to 10% by weight of the hydraulic cement from the viewpoints of waterproofness, penetration resistance, neutralization resistance and the like of the hydrated cured product of the cement composition. Preferably, the silicone oil is 0.1 to 6% by weight of the hydraulic cement.
（ハ）成分の骨材は必要に応じて添加される成分であ
り、モルタルの場合は砂，ケイ砂，砕砂などであり、コ
ンクリートの場合は砂利，砕石，小石などである。The aggregate of the component (c) is a component that is added as needed. For mortar, sand, quartz sand, crushed sand, and the like, and for concrete, gravel, crushed stone, pebbles, and the like.
本発明のセメント組成物には必要に応じてモルタルや
コンクリートやALCに添加される成分である顔料，ガラ
ス繊維，鉱繊維，ポリアミド繊維，炭素繊維，発泡剤な
どを添加してもよい。If necessary, pigments, glass fibers, mineral fibers, polyamide fibers, carbon fibers, foaming agents, etc., which are components added to mortar, concrete or ALC, may be added to the cement composition of the present invention.
本発明のセメント組成物は、（イ）成分の水硬性セメ
ント，（ロ）成分のシリコーンオイルと無機質微粉末の
粉状混合物および必要に応じて（ハ）成分の骨材を単に
混合することにより容易に製造できる。The cement composition of the present invention is obtained by simply mixing the hydraulic cement of the component (a), the powdery mixture of the silicone oil of the component (b) and the inorganic fine powder, and, if necessary, the aggregate of the component (c). Can be easily manufactured.
本発明のセメント組成物は、水を添加して混合するこ
とにより硬化するが、その際、水が水硬性セメントの10
−100重量％となるように水を添加するとよい。The cement composition of the present invention is hardened by adding and mixing water.
It is advisable to add water so as to be -100% by weight.
本発明のセメント組成物は、床材，舗装材，防水材，
接着材，化粧仕上材，補修材，防食材，デッキカバーリ
ング材などとして有用である。The cement composition of the present invention includes flooring materials, pavement materials, waterproofing materials,
It is useful as an adhesive, decorative material, repair material, anticorrosion material, deck covering material, etc.
次に本発明の実施例，比較例をかかげる。実施例，比
較例では、室温にて普通ポルトランドセメント100重量
部、25℃における粘度が12500cstである両末端トリメチ
ルシロキシ基封鎖ジメチルポリシロキサンオイル60重量
％と比表面積380m2/gのシリカ微粉末40重量％とからな
る粉状混合物など所定量および豊浦標準砂300重量部を
はちに入れて２分間混ぜ、水を加えて３分間よく練り混
ぜ、所定の寸法に成形した。なお水の添加量は混合物の
フロー値が170±５となるような量とした。Next, examples of the present invention and comparative examples will be described. In Examples and Comparative Examples, 100 parts by weight of ordinary Portland cement at room temperature, 60% by weight of a dimethylpolysiloxane oil capped with trimethylsiloxy groups at both ends having a viscosity of 12,500 cst at 25 ° C., and silica fine powder 40 having a specific surface area of 380 m 2 / g 40 A predetermined amount such as a powdery mixture consisting of 100% by weight and 300 parts by weight of Toyoura standard sand were put in a bee, mixed for 2 minutes, added with water, kneaded well for 3 minutes, and molded into predetermined dimensions. The amount of water added was such that the flow value of the mixture was 170 ± 5.
成形後JCI−SE4〔温水法（70℃）によるコンクリート
の促進強度試験方法〕に従って養生し、すなわち、20
℃,80％RHの湿空に１日放置し、ついで、70℃の温水中
に１日放置することによって養生し、更に20℃,50％RH
の空気中で７日間乾燥養生して供試体を作製した。After molding, it is cured according to JCI-SE4 [Promoted strength test method for concrete by hot water method (70 ° C)].
℃, 80% RH moist air for 1 day, then left in 70 ° C. warm water for 1 day to cure, and then 20 ° C., 50% RH
The sample was dried and cured in the air for 7 days.
各供試体について次の条件で試験を行なった。 The test was performed on each specimen under the following conditions.
（イ）強さ試験 寸法40×40×160mmの供試体を用いて、JISR5201（セ
メントの物理試験方法）に準じて、曲げ及び圧縮強さ試
験を行った。(A) Strength test Using a specimen having dimensions of 40 × 40 × 160 mm, a bending and compressive strength test was conducted in accordance with JISR5201 (physical test method for cement).
（ロ）吸水試験 吸水試験はJIS A 6203（セメント混和用ポリマーディ
スパージョン）に準じた寸法40×40×160mmの供試体を
乾燥機（80℃）中で恒量になるまで乾燥した後、水中
（20℃）に浸せきし、吸水試験を行った。浸せき後48時
間目の供試体の重量を測定し、次式より吸水率を求め
た。(B) Water absorption test The water absorption test was carried out by drying a specimen having a size of 40 × 40 × 160 mm according to JIS A 6203 (polymer dispersion for cement admixture) to a constant weight in a drier (80 ° C.) and then drying in water ( (20 ° C), and a water absorption test was performed. The weight of the test specimen 48 hours after immersion was measured, and the water absorption was determined from the following equation.
Cw＝［（W1−Wa）/Wa］×100 ここに、Cw:吸水率（％） Wa:水中浸せき前の供試体重量（ｇ） W1:水中浸せき後の供試体重量（ｇ） （ハ）塩化物イオン浸透試験 塩化物イオン浸透試験は、JCIのポリマーセメントモ
ルタル試験方法規準（案）のポリマーセメントモルタル
の塩化物イオン浸透深さ試験方法（案）に準じた。寸法
40×40×80mmの供試体を用いて、型わくに接する二側面
を除いた四面を、エポキシ樹脂塗料でシールした。次
に、供試体を2.5％の塩化ナトリウム溶液（20℃）中
に、７日間浸せきした。浸せき後、供試体の重量を測定
して、次式より、重量変化率を求めた。C w = [(W 1 −W a ) / W a ] × 100 where C w : water absorption (%) W a : specimen weight before immersion in water (g) W 1 : specimen after immersion in water Weight (g) (c) Chloride ion penetration test The chloride ion penetration test conformed to the chloride ion penetration depth test method (draft) for polymer cement mortar in the JCI polymer cement mortar test method standards (draft). Size
Using a 40 × 40 × 80 mm specimen, four sides except for two sides in contact with the mold were sealed with an epoxy resin paint. Next, the specimen was immersed in a 2.5% sodium chloride solution (20 ° C.) for 7 days. After the immersion, the weight of the specimen was measured, and the weight change rate was calculated from the following equation.
Cw＝［（W1−Wa）/Wa］×100 ここに、Cw:重量変化率（％） Wa:試験液浸せき前の供試体重量（ｇ） W1:試験液浸せき後の供試体重量（ｇ） 重量測定後、供試体を二分割し、その断面に0.1％フ
ルオレセインナトリウム液及び0.1N硝酸銀溶液を噴霧
し、塩化物イオン浸透深さをノギスを用いて測定し、そ
の平均値を求めた。C w = [(W 1 −W a ) / W a ] × 100 where C w : Weight change rate (%) W a : Specimen weight before immersion in test liquid (g) W 1 : After immersion in test liquid Specimen weight (g) After measuring the weight, the specimen was divided into two parts, and a 0.1% sodium fluorescein solution and a 0.1N silver nitrate solution were sprayed on the cross section, and the depth of chloride ion penetration was measured using a caliper. The average was determined.
（ニ）促進中性化試験 寸法40×40×80mmの供試体を用いて、型わくに接する
二側面を除いた四面を、エポキシ樹脂塗料でシールし
た。次に、供試体を、14日間促進中性化試験装置（30
℃,60％RH,CO2濃度５％）内に静置した。その後、供試
体を二分割し、断面にフェノールフタレインの１％アル
コール溶液を噴霧して、赤色に変化しない部分を中性化
域として、中性化深さをノギスを用いて測定し、その平
均値を求めた。(D) Accelerated neutralization test Using a test specimen having a size of 40 × 40 × 80 mm, four sides except for two sides in contact with the mold frame were sealed with an epoxy resin paint. Next, the specimen was placed in the accelerated neutralization test device (30 days).
℃, 60% RH, and allowed to stand in 5% CO 2) in the. Thereafter, the test specimen was divided into two parts, and a 1% alcohol solution of phenolphthalein was sprayed on the cross section, and the neutralization depth was measured using a vernier caliper with the part that did not change to red as a neutralization area. The average was determined.
実施例１〜3,比較例１ （ロ）成分として、25℃における粘度が12,500cstで
ある両末端トリメチルシロキシ基封鎖ジメチルポリシロ
キサン60重量％と比表面積380m2/gの湿式法シリカ40重
量％とからなる白色粉状混合物をポルトランドセメント
の0.5％,1.0％及び2.0％（単位重量）添加した場合の諸
特性測定結果および粉状混合物を添加しなかった場合の
諸特性測定結果を第１表に示した。Examples 1 to 3, Comparative Example 1 (b) As a component, 60% by weight of a dimethylpolysiloxane capped at both ends with a trimethylsiloxy group having a viscosity of 12,500 cst at 25 ° C. and 40% by weight of wet process silica having a specific surface area of 380 m 2 / g. Table 1 shows the measurement results of various properties when 0.5%, 1.0% and 2.0% (unit weight) of Portland cement were added to a white powder mixture consisting of: and the results when various powder mixtures were not added. It was shown to.
なお、上記粉状混合物は2.8メッシュ篩上５分間振動
時の通過率が95％であり、嵩密度は0.42g/cm3であっ
た。The above powdery mixture had a passage rate of 95% when vibrated over a 2.8 mesh sieve for 5 minutes, and a bulk density of 0.42 g / cm 3 .
実施例４ ポルトランドセメント100重量部に対して、25℃にお
ける粘度が350cstである両末端トリメチルシロキシ基封
鎖ジメチルポリシロキサン40重量％と比表面積200m2/g
のヒュームドシリカ微粉末60重量％とからなる粉状混合
物を1.5重量部を添加した場合の諸特性測定結果は次の
とおりであった。 Example 4 Based on 100 parts by weight of Portland cement, 40% by weight of a dimethylpolysiloxane capped at both ends with trimethylsiloxy group having a viscosity of 350 cst at 25 ° C. and a specific surface area of 200 m 2 / g
The properties measured when 1.5 parts by weight of a powdery mixture composed of 60% by weight of the above fumed silica fine powder were added were as follows.
塩化物イオン浸透 重量変化率（％） 0.5 浸透深さ（mm） 1.3 中性化深さ（mm） 9.2 吸水率（％） 10.0 〔発明の効果〕 本発明のセメント組成物は、（ロ）成分のシリコーン
オイルと比表面積50m2/g以上の無機質微粉末の粉状混合
物を（イ）成分の水硬性セメント100重量部に対し0.2〜
10重量部含有するので、取り扱いが容易であり、きわめ
て混ざりやすく、防水性，撥水性，塩化物イオン浸透に
対する抵抗性，大気中の二酸化炭素ガスによる中性化に
対する抵抗性、とりわけ、塩化物イオン浸透に対する抵
抗性のきわめてすぐれたセメント水和硬化体を与えると
いう特徴を有する。Chloride ion penetration Weight change rate (%) 0.5 Penetration depth (mm) 1.3 Neutralization depth (mm) 9.2 Water absorption (%) 10.0 [Effect of the invention] The cement composition of the present invention comprises the component (b) A powdery mixture of the silicone oil and an inorganic fine powder having a specific surface area of 50 m 2 / g or more is added in an amount of 0.2 to 100 parts by weight of the hydraulic cement (a).
Because it contains 10 parts by weight, it is easy to handle, very easy to mix, waterproof, water repellent, resistant to chloride ion penetration, resistant to neutralization by atmospheric carbon dioxide gas, especially chloride ion It has the feature of giving a cement hydrate hardened product having extremely excellent resistance to penetration.
Claims (3)
質微粉末の粉状混合物 0.2〜10重量部、 および必要に応じて（ハ）骨材からなることを特徴とす
る、セメント組成物。(A) 100 parts by weight of hydraulic cement, (b) 0.2 to 10 parts by weight of a powdery mixture of silicone oil and an inorganic fine powder having a specific surface area of 50 m 2 / g or more, and (c) if necessary. A cement composition comprising an aggregate.
％と比表面積50m2/g以上の無機質微粉末90〜20重量％と
からなる、特許請求の範囲第１項記載のセメント組成
物。2. The cement composition according to claim 1, wherein the component (b) comprises 10 to 80% by weight of silicone oil and 90 to 20% by weight of inorganic fine powder having a specific surface area of 50 m 2 / g or more. .
求の範囲第２項記載のセメント組成物。3. The cement composition according to claim 2, wherein the inorganic fine powder is a silica fine powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1096850A JP2772817B2 (en) | 1989-04-17 | 1989-04-17 | Cement composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1096850A JP2772817B2 (en) | 1989-04-17 | 1989-04-17 | Cement composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02275742A JPH02275742A (en) | 1990-11-09 |
| JP2772817B2 true JP2772817B2 (en) | 1998-07-09 |
Family
ID=14175970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1096850A Expired - Fee Related JP2772817B2 (en) | 1989-04-17 | 1989-04-17 | Cement composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2772817B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010047426A (en) * | 2008-08-19 | 2010-03-04 | Sumitomo Metal Mining Siporex Kk | Frost damage resistance improver and method for producing mortar or concrete with frost damage resistance |
| JP6753632B2 (en) * | 2016-07-14 | 2020-09-09 | 住友金属鉱山シポレックス株式会社 | Fresh concrete for blast furnace cement concrete |
| CN108147739A (en) * | 2017-12-19 | 2018-06-12 | 佛山杰致信息科技有限公司 | Water feature design water-proof bond material and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581070B2 (en) * | 1980-07-02 | 1983-01-10 | 工業技術院長 | Manufacturing method of slag/magnesium carbonate plate material |
| JPS5869756A (en) * | 1981-10-21 | 1983-04-26 | 電気化学工業株式会社 | Manufacture of cement product |
-
1989
- 1989-04-17 JP JP1096850A patent/JP2772817B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02275742A (en) | 1990-11-09 |
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