JPH0692705A - Cement composition - Google Patents
Cement compositionInfo
- Publication number
- JPH0692705A JPH0692705A JP24083792A JP24083792A JPH0692705A JP H0692705 A JPH0692705 A JP H0692705A JP 24083792 A JP24083792 A JP 24083792A JP 24083792 A JP24083792 A JP 24083792A JP H0692705 A JPH0692705 A JP H0692705A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- mortar
- cement composition
- forming agent
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00336—Materials with a smooth surface, e.g. obtained by using glass-surfaced moulds
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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)
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、セメント組成物に関す
るものであり、更に詳しくはモルタル表面の粗さを改善
して平滑性、光沢性を向上させたモルタルを調製するた
めに好適なセメント組成物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement composition, and more particularly, a cement composition suitable for preparing a mortar having improved surface roughness and improved smoothness and gloss. It is about things.
【０００２】[0002]
【従来の技術】コンクリート表面の仕上げ、即ち化粧の
方法の中で、モルタル塗仕上げは施工が簡易であり、経
済的にも安価であることから多く用いられている。モル
タル塗仕上げ工法は使用材料としてポルトランド系セメ
ントと砂(細骨材)を用い、これに適当量の水を加えたセ
メントモルタルをコンクリートの表面に塗布する方法で
ある。2. Description of the Related Art Among the methods for finishing concrete surfaces, that is, makeup methods, mortar coating finishing is widely used because it is easy to apply and economically inexpensive. The mortar coating finishing method is a method in which Portland cement and sand (fine aggregate) are used as the materials to be used, and cement mortar in which an appropriate amount of water is added to this is applied to the surface of the concrete.
【０００３】このモルタル仕上げでは、表面が粗いため
汚れが目立ち易いため、更に樹脂系、その他の材料を表
面に塗布または噴霧することにより被膜を形成する方法
が行われている。しかし、この方法はモルタル仕上げ工
程の後に化粧仕上げ工程を必要とするものであり、しか
も均質な仕上げが得られないことがある。In this mortar finishing, since the surface is rough and stains are easily noticeable, a method of forming a coating by applying or spraying a resin type or other material on the surface is used. However, this method requires a makeup finishing step after the mortar finishing step, and in some cases, a uniform finish cannot be obtained.
【０００４】[0004]
【発明が解決しようとする課題】モルタル塗仕上げ工法
は、主材料がセメントと砂であることから、硬化後の表
面は粗く、平滑性、光沢性が小さいため、汚れ易く美観
上劣るものとなっている。なお、表面の粗さとは小さい
間隔で起こる表面の凹凸で、人が「つるつる」している
とか、「ざらざら」していると認められる感覚の基にな
るものである。In the mortar coating finishing method, since the main materials are cement and sand, the surface after curing is rough and the smoothness and glossiness are small, so that it easily becomes dirty and is aesthetically inferior. ing. The surface roughness is the unevenness of the surface that occurs at small intervals, and is the basis for the feeling that a person is "smooth" or "rough".
【０００５】従って、本発明の目的は、モルタル表面の
粗さを改善して平滑性、光沢性を向上させたモルタルを
調製するために好適なセメント組成物を提供することに
ある。Accordingly, it is an object of the present invention to provide a cement composition suitable for preparing a mortar having improved surface roughness and improved smoothness and gloss.
【０００６】[0006]
【課題を解決するための手段】モルタル表面の粗さを改
善し、平滑で汚れ難い仕上げ面を簡便な方法で得る工法
について種々検討した結果、従来セメントの硬化を阻害
することで知られている糖類の中から特定のものを特定
量被膜形成剤として添加したセメント組成物を用いて調
製したモルタルは表面がつるつるした状態に硬化するこ
とを見いだした。[Means for Solving the Problems] As a result of various studies on a method of improving the roughness of the mortar surface and obtaining a smooth and dirt-free finished surface by a simple method, it has been known that it inhibits the hardening of conventional cement. It has been found that a mortar prepared by using a cement composition in which a specific amount of a saccharide is added as a specific amount as a film-forming agent is hardened to have a smooth surface.
【０００７】即ち、本発明に係るセメント組成物は、セ
メント１００重量部に対して被膜形成剤０.０１〜０.３
重量部を含有することを特徴とする。That is, the cement composition according to the present invention has a film forming agent of 0.01 to 0.3 with respect to 100 parts by weight of cement.
It is characterized by containing parts by weight.
【０００８】[0008]
【作用】本発明においては、モルタル表面の粗さを改善
するために、硬化モルタル表面に平滑性、光沢性に優れ
た被膜を形成させる方法として被膜形成剤を混合したセ
メント組成物を使用することにある。In the present invention, in order to improve the roughness of the mortar surface, a cement composition containing a film-forming agent is used as a method for forming a film having excellent smoothness and gloss on the surface of the cured mortar. It is in.
【０００９】本発明に使用するセメントは特に限定され
るものではなく、例えばポルトランド系セメントや混合
セメントを使用することができ、混合セメントとしては
シリカセメント、高炉セメント、フライアッシュセメン
ト等の慣用のものを例示できる。The cement used in the present invention is not particularly limited, and for example, Portland type cement or mixed cement can be used, and as the mixed cement, commonly used cement such as silica cement, blast furnace cement and fly ash cement is used. The thing can be illustrated.
【００１０】次に、本発明のセメント組成物に使用する
被膜形成剤としては、構成する単糖類の重合度が３以上
であるオリゴ糖を使用することが望ましく、更にテトラ
オース以上の重合度を有するオリゴ糖を用いることが好
適である。テトラオース以上の重合度を有するグルコオ
リゴ糖としては、マルトテトラオース、マルトペンタオ
ース、マルトヘキサオース及びマルトヘプタオース等を
主成分として含む澱粉糖が知られており、これらはいず
れも有効に用いることができる。なお、ここでいうオリ
ゴ糖とは、構成糖の重合度が２〜１０の糖を意味し、構
成糖はグルコースのみに限定されるものではない。この
被膜形成剤の配合率はセメント１００重量部に対して
０.０１〜０.３重量部、好ましくは０.０５〜０.１重量
部である。ここで、被膜形成剤が０.０１重量部未満の
場合には、被膜形成度合が小さく、また、０.３重量部
を超えると他の要因である硬化不良が生じるため本来の
目的を達成できなくなる。Next, as the film-forming agent used in the cement composition of the present invention, it is desirable to use an oligosaccharide having a degree of polymerization of constituent monosaccharides of 3 or more, and further having a degree of polymerization of tetraose or more. It is preferred to use oligosaccharides. As glucooligosaccharides having a degree of polymerization of tetraose or higher, starch sugars containing maltotetraose, maltopentaose, maltohexaose, maltoheptaose, etc. as main components are known, and these can be effectively used. it can. The oligosaccharide as used herein means a sugar having a degree of polymerization of the constituent sugar of 2 to 10, and the constituent sugar is not limited to glucose. The mixing ratio of the film-forming agent is 0.01 to 0.3 part by weight, preferably 0.05 to 0.1 part by weight, relative to 100 parts by weight of cement. Here, if the film-forming agent is less than 0.01 parts by weight, the film-forming degree is small, and if it exceeds 0.3 parts by weight, curing failure, which is another factor, occurs, and the original purpose can be achieved. Disappear.
【００１１】なお、本発明のセメント組成物を用いてモ
ルタルを調製する場合に、その配合は特に限定されるも
のではなく、通常のものと同様である。また、セメント
混和剤等の添加剤も本発明のセメント組成物に悪影響を
及ぼさないものであれば、その使用は特に問題はない。When a mortar is prepared using the cement composition of the present invention, its composition is not particularly limited and is the same as a usual one. In addition, if additives such as cement admixtures do not adversely affect the cement composition of the present invention, their use is not particularly problematic.
【００１２】本発明のセメント組成物では、従来のセメ
ントモルタルに被膜形成剤を混合することにより、モル
タルの硬化過程において、モルタル中に溶け込んでいる
被膜形成剤の溶液がブリージング水と共に表面に移動
し、水分が蒸発した後に被膜が形成される。このことに
より硬化後のモルタル表面に被膜を形成し、平滑性、光
沢性を向上させて美観に優れた仕上げ面となる。In the cement composition of the present invention, by mixing the film forming agent with the conventional cement mortar, the solution of the film forming agent dissolved in the mortar moves to the surface together with the breathing water during the hardening process of the mortar. , A film is formed after evaporation of water. As a result, a film is formed on the surface of the mortar after curing, and the smoothness and glossiness are improved, and the finished surface has an excellent appearance.
【００１３】なお、本発明のセメント組成物から調製さ
れたモルタルはモルタル塗仕上げに使用するだけでな
く、モルタルを使用した成形体の製造にも使用すること
ができ、良好な平滑性、光沢性を付与することができ
る。The mortar prepared from the cement composition of the present invention can be used not only for finishing mortar coating but also for producing a molded product using mortar, and has good smoothness and gloss. Can be given.
【００１４】[0014]
【実施例】以下、実施例により本発明を更に説明する。 実施例１〜９及び比較例１ 普通ポルトランドセメント(小野田セメント社製)に被膜
形成剤として表１に示す糖組成を有するフジオリゴ３６
０Ｐ、４５０Ｐ及び４７０Ｐ(日本食品化工社製)を以下
の表２に示す割合で配合して本発明のセメント組成物を
調製した。EXAMPLES The present invention will be further described below with reference to examples. Examples 1 to 9 and Comparative Example 1 Fuji Oligo 36 having the sugar composition shown in Table 1 as a film forming agent in ordinary Portland cement (manufactured by Onoda Cement Co., Ltd.)
0P, 450P and 470P (manufactured by Nippon Shokuhin Kako Co., Ltd.) were mixed in the proportions shown in Table 2 below to prepare the cement composition of the present invention.
【００１５】[0015]
【表１】 [Table 1]
【００１６】[0016]
【表２】 [Table 2]
【００１７】これらのセメント組成物を用いて、水セメ
ント比４５％、セメント砂(標準砂：山口県豊浦郡産)比
５０％の配合率のモルタルを混練したのち、型枠(４×
４×１６ｃｍ)に入れ、振動台(３０００ｒｐｍ、振幅１
ｍｍ)で１分間絞め固めを行った。続いて、このモルタ
ルについて、気乾養生(温度２０℃、湿度６０％)と炭酸
ガス養生(温度２０℃、湿度５０％、ＣＯ2濃度２０％)
を行い、スガ試験機(株)製携帯光沢計を用いてＪＩＳ
Ｚ８７４１(方法３)に準じて供試体の表面の鏡面光沢度
を測定した。気乾養生後の成形体の測定結果を表３に、
炭酸ガス養生後の成形体の測定結果を表４にそれぞれ示
す。なお、比較例として被膜形成剤を添加配合しないセ
メント単味のものについて同様に成形、養生し、測定し
た。Using these cement compositions, a mortar having a mixing ratio of 45% water cement ratio and 50% ratio of cement sand (standard sand: produced in Toyoura-gun, Yamaguchi Prefecture) was kneaded, and then the form (4 ×
4 x 16 cm), shake table (3000 rpm, amplitude 1
(mm) was squeezed for 1 minute for compaction. Then, about this mortar, air dry curing (temperature 20 ° C, humidity 60%) and carbon dioxide curing (temperature 20 ° C, humidity 50%, CO 2 concentration 20%)
And carry out JIS using a portable gloss meter manufactured by Suga Test Instruments Co., Ltd.
The specular gloss of the surface of the specimen was measured according to Z8741 (method 3). Table 3 shows the measurement results of the molded body after air-drying curing.
Table 4 shows the measurement results of the molded body after carbon dioxide curing. In addition, as a comparative example, the cement alone without addition of the film forming agent was similarly molded, cured and measured.
【００１８】[0018]
【表３】 [Table 3]
【００１９】[0019]
【表４】 [Table 4]
【００２０】実施例１０及び比較例２ 実施例９及び比較例１のセメント組成物を用いて、水セ
メント比４５％、セメント砂(標準砂：山口県豊浦郡産)
比５０％の配合率のモルタルを混練したのち、コンクリ
ートの表面(幅２０ｃｍ、長さ２０ｃｍ)に厚さ１ｃｍに
塗布してモルタル仕上げを行った。続いて、このモルタ
ルについて気乾養生(温度２０℃、湿度６０％)を行い、
スガ試験機(株)製携帯光沢計を用いてJIS Z8741(方法
３)に準じてモルタル仕上げ面の表面の鏡面光沢度を測
定した。気乾養生後のモルタル仕上げの測定結果を表５
に示す。Example 10 and Comparative Example 2 Using the cement compositions of Example 9 and Comparative Example 1, water cement ratio of 45%, cement sand (standard sand: produced by Toyoura-gun, Yamaguchi Prefecture)
After kneading mortar with a mixing ratio of 50%, it was applied to a surface (width 20 cm, length 20 cm) of concrete with a thickness of 1 cm to finish mortar. Then, this mortar was air-dried (temperature 20 ° C, humidity 60%),
Using a portable gloss meter manufactured by Suga Test Instruments Co., Ltd., the specular gloss of the mortar finished surface was measured according to JIS Z8741 (method 3). Table 5 shows the measurement results of mortar finishing after air-drying curing.
Shown in.
【００２１】[0021]
【表５】 [Table 5]
【００２２】[0022]
【発明の効果】本発明のセメント組成物は、セメントに
極少量の被膜形成剤を添加、使用することにより、硬化
後のモルタル表面の平滑性、光沢性が従来のセメントを
使用して調製したモルタルに比べて大幅に向上する。特
に、本発明のセメント組成物を使用して調製したコンク
リート表面化粧仕上げ用モルタルの場合には、従来の汚
れ易く、美観上劣っていた欠点を改善することが可能と
なった。その結果、美観を求められる仕上げ場所への利
用が可能となり、モルタルの用途拡大が期待できる。EFFECTS OF THE INVENTION The cement composition of the present invention was prepared by adding a very small amount of a film-forming agent to cement and using it to the mortar surface after curing so that the smoothness and glossiness of the cement were conventional. Greatly improved compared to mortar. In particular, in the case of the mortar for concrete surface decorative finish prepared by using the cement composition of the present invention, it became possible to improve the conventional defects that were easily soiled and were aesthetically inferior. As a result, it can be used in finishing places where aesthetics are required, and the application of mortar can be expected to expand.
Claims (1)
剤０.０１〜０.３重量部を含有することを特徴とするセ
メント組成物。1. A cement composition comprising 0.01 to 0.3 parts by weight of a film forming agent with respect to 100 parts by weight of cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24083792A JPH0692705A (en) | 1992-09-09 | 1992-09-09 | Cement composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24083792A JPH0692705A (en) | 1992-09-09 | 1992-09-09 | Cement composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0692705A true JPH0692705A (en) | 1994-04-05 |
Family
ID=17065443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24083792A Pending JPH0692705A (en) | 1992-09-09 | 1992-09-09 | Cement composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0692705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019167339A1 (en) | 2018-02-27 | 2019-09-06 | 日本総合リサイクル株式会社 | Shearing device for large airplane disassembly and work vehicle for large airplane disassembly |
-
1992
- 1992-09-09 JP JP24083792A patent/JPH0692705A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019167339A1 (en) | 2018-02-27 | 2019-09-06 | 日本総合リサイクル株式会社 | Shearing device for large airplane disassembly and work vehicle for large airplane disassembly |
| US11192663B2 (en) | 2018-02-27 | 2021-12-07 | Nihon Sougou Recycle Co., Ltd. | Shearing machine for dismantling a large aircraft and working vehicle for dismantling a large aircraft |
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| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
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