JPS58185463A - Manufacture of high viscosity ready mixed concrete - Google Patents
Manufacture of high viscosity ready mixed concreteInfo
- Publication number
- JPS58185463A JPS58185463A JP6724182A JP6724182A JPS58185463A JP S58185463 A JPS58185463 A JP S58185463A JP 6724182 A JP6724182 A JP 6724182A JP 6724182 A JP6724182 A JP 6724182A JP S58185463 A JPS58185463 A JP S58185463A
- Authority
- JP
- Japan
- Prior art keywords
- mixed concrete
- ready
- concrete
- water
- thickening agent
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は高粘度生コンクリートの製造方法、特に水中で
コンクリートを打設する場合に用いる高粘度生コンクリ
ートの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing high-viscosity ready-mixed concrete, and particularly to a method for producing high-viscosity ready-mixed concrete used when pouring concrete in water.
従来水中でコンクリートを打設した時に、電材が水中で
分離することなく所定の目的を達成するために粘稠剤を
添加配合した生コンクリートが利用されている。Conventionally, ready-mixed concrete with a thickening agent added thereto has been used in order to achieve a predetermined purpose without electrical materials separating in the water when concrete is placed underwater.
粘稠剤としては各種の水溶性高分子が用いられるが特に
セルローズ・エーテルが適蟲であり、例ｔ ハ、メチル
−セルローズ、ヒドロキシエチル・セルローズ、ヒドロ
キシプロピル・セルローズおよびこれ等の混合エーテル
等を使用することができる。Various water-soluble polymers are used as thickeners, but cellulose ether is particularly suitable; examples include methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, and mixed ethers of these. can be used.
このような粘稠剤を用いて高粘度生コンクリートを製造
する場合には通常コ／クリ−）１キサ−にセメント・砂
・砂利・粘稠剤及び水を入れて混練するが、この場合一
般に粘稠剤は水との親和性が大きすぎる九め水に投入す
ると粘稠な水１１！１ｌＫｊｅｔｌまれた粉体粒子、即
ち７１コを形成してしまい、その結果セメント・砂・砂
利等と粘稠剤との混合が不充分となって出来上った粘ｊ
ｐ４刑入シ生コンクリートは水中の皇枠内に打設しても
粘稠剤の効果が？Ａ憚されずに、砂・砂利等が分離して
しまい品質不良なコンクリートとなる欠点があった。When producing high-viscosity ready-mixed concrete using such a thickening agent, cement, sand, gravel, thickening agent, and water are usually mixed in 1 mixer. When a thickening agent is added to water, which has too high an affinity for water, it forms powder particles, i.e., 71 particles, which are 11 to 1 lKjetl of viscous water, and as a result, it becomes viscous with cement, sand, gravel, etc. Thickness created by insufficient mixing with the thickener
Is the thickening agent effective even if p4 ready-mixed concrete is poured into the submerged framework? A: There was a drawback that the sand, gravel, etc. would separate, resulting in poor quality concrete.
又、一般に生コンクリートを製造して販売している業者
に粘稠剤入り生コンクリートを注文した場合、ｆＥＫ＊
ｉｔ側で充分な混合攪拌を行つて粘稠剤入りの効果が充
分発揮できるような帖稠剤人υ生コンクリートを作成し
た場合、粘稠剤の作用で生コンクリートに粘りが生じる
ので生コンクリートがミキサー内に付着し、その結果、
混線後の建キサ−の洗浄が極めて困−となり昔通の生コ
ンクリート製造作業に支障をきたすので粘稠剤入や生コ
ンクリートは割高な価格となる。Additionally, if you order ready-mixed concrete containing a thickening agent from a company that generally manufactures and sells ready-mixed concrete, fEK*
If the IT side performs sufficient mixing and stirring to create fresh concrete that contains a thickening agent to fully demonstrate its effect, the action of the thickening agent will cause the fresh concrete to become sticky. It sticks inside the mixer and as a result,
Cleaning the building mixer after crosstalk is extremely difficult, which interferes with conventional ready-mixed concrete manufacturing operations, making ready-mixed concrete with a thickening agent more expensive.
上鮎は生コンクリートを運搬するミキサー車にもあては
まり、粘稠剤入シ生コンクリートを運搬した後、ミキサ
一部の洗浄が困難となる。The above problem also applies to mixer trucks that transport fresh concrete, making it difficult to clean parts of the mixer after transporting thickening agent-containing fresh concrete.
又、粘稠剤入り生コンクリートはその粘性が強いため前
記生コンクリート製造プラントのミキサー内及びミキサ
ー車のミキサー内にかなりの量が残存してこの分が不経
済となる。Further, since the fresh concrete containing a thickening agent has a strong viscosity, a considerable amount remains in the mixer of the ready-mixed concrete production plant and in the mixer of the mixer truck, which becomes uneconomical.
本発明の目的はこのような欠点を除くようにし友高粘度
生コンクリートの製造方法を得るにある。The object of the present invention is to provide a method for producing high-viscosity ready-mixed concrete that eliminates these drawbacks.
粘稠剤は、これを架橋変性することによシ水には直ちに
溶解ぜずにその粉体を水中に分散することかできるもの
がめる。このような粘稠剤粉体の水分散液をそのま＼放
置するかアルカリを投入するとママコにならずに粘稠剤
の水溶液を得ることができる。本発明者らは、このよう
な架橋され九粘横剤の性質ＫＪＩ目し、その水分散液を
生コンクリートに後添加するとセメント中のアルカリが
作用し混合攪拌と同時に粘稠剤が溶解し、その結釆鳥粘
度の生コンクリートとなることをみとめ本発明に到逼し
た。A thickening agent is one that can be cross-linked and modified to disperse the powder in water without immediately dissolving it in water. If such an aqueous dispersion of thickener powder is left as it is or an alkali is added, an aqueous solution of the thickener can be obtained without becoming sticky. The present inventors focused on the properties of such a cross-linked thickening agent, and when the aqueous dispersion thereof was added to fresh concrete afterwards, the alkali in the cement acted and the thickening agent was dissolved at the same time as mixing and stirring. The present invention was achieved by realizing that the resultant ready-mixed concrete has a high viscosity.
即ち本発明の高粘度生コンクリートの製造方法は、所定
の水含有量より少ない水含有量の生コンクリートを作る
工程と、前記不足の水量の水に架橋し九粘稠剤を分散せ
しめて水分散液を作る工程と、前記生コ／りＩ） −）
Ｋ前記架橋した粘Ｉｓ４鋼の水分散液を添加して攪拌
する工程とより成ることを特徴とする。That is, the method for producing high-viscosity ready-mixed concrete of the present invention includes the steps of making ready-mixed concrete with a water content lower than a predetermined water content, and crosslinking the insufficient amount of water to disperse a 9-viscosity agent and water dispersion. The process of making a liquid and the above-mentioned raw coco/liquid I) -)
K is characterized by comprising a step of adding and stirring the aqueous dispersion of the crosslinked viscous Is4 steel.
以丁本発明の詳細な説明する。The present invention will now be described in detail.
本開明においては水含有量が所望値よ多少ない生コンク
リートを生コンクリート製造業者から購入し、架橋剤を
施し九粘稠剤を前記不足の水量の水に分散せしめて水分
散液を作り、この水分散液を現地に用意し九ミキサー内
に前記生コンクリートと共に入れて混練して粘稠剤入り
生コンクリートを得るようにする。In the present invention, ready-mixed concrete with a water content slightly lower than the desired value is purchased from a ready-mixed concrete manufacturer, a cross-linking agent is applied thereto, and a nine-viscosity agent is dispersed in the insufficient amount of water to create an aqueous dispersion. An aqueous dispersion is prepared on-site and put into a mixer together with the fresh concrete and mixed to obtain thickening agent-containing ready-mixed concrete.
本発明においては架橋し九粘橋剤を水に分散した水分散
液を高粘度生コンクリート製造の最俵の工程において生
コンクリートに加えるようにしたので粘稠剤が生コンク
リート中のアルカリ水に溶解して粘性を生ずる前に、粘
稠剤同志が集合することなく生コンクリート中に均等に
分散され、その後アルカリ水との反応によって粘性音生
ずるようになるため従来の欠点を一播できる大きな利益
がある。In the present invention, an aqueous dispersion in which a crosslinking agent is dispersed in water is added to fresh concrete in the final bale process of producing high-viscosity fresh concrete, so that the thickening agent dissolves in the alkaline water in the fresh concrete. The thickeners are uniformly dispersed in fresh concrete without agglomeration before they become viscous, and then react with alkaline water to produce a viscous sound, which has the great advantage of overcoming the drawbacks of conventional methods be.
Claims (1)
作る工程と、前記不足の水量の水に架橋した粘稠剤を分
散せしめて水分散液を作る工程と、前記生コンクリート
に前記架橋した粘稠剤の水分散液を添加して攪拌する工
程とより成る高粘度生コンクリートの製造方法。a step of preparing ready-mixed concrete with a water content lower than a predetermined water content; a step of dispersing a cross-linked thickening agent in the insufficient amount of water to form an aqueous dispersion; A method for producing high-viscosity ready-mixed concrete, which comprises the steps of adding and stirring an aqueous dispersion of a thickener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6724182A JPS58185463A (en) | 1982-04-23 | 1982-04-23 | Manufacture of high viscosity ready mixed concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6724182A JPS58185463A (en) | 1982-04-23 | 1982-04-23 | Manufacture of high viscosity ready mixed concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58185463A true JPS58185463A (en) | 1983-10-29 |
Family
ID=13339217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6724182A Pending JPS58185463A (en) | 1982-04-23 | 1982-04-23 | Manufacture of high viscosity ready mixed concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58185463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015101524A (en) * | 2013-11-27 | 2015-06-04 | 五洋建設株式会社 | Admixture for concrete in water, concrete in water and manufacturing method for concrete in water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332368A (en) * | 1976-09-08 | 1978-03-27 | Tokyo Shibaura Electric Co | Semiconductor device case |
| JPS5575955A (en) * | 1978-11-28 | 1980-06-07 | Nisso Master Builders Kk | Fluidization of concrete |
-
1982
- 1982-04-23 JP JP6724182A patent/JPS58185463A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332368A (en) * | 1976-09-08 | 1978-03-27 | Tokyo Shibaura Electric Co | Semiconductor device case |
| JPS5575955A (en) * | 1978-11-28 | 1980-06-07 | Nisso Master Builders Kk | Fluidization of concrete |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015101524A (en) * | 2013-11-27 | 2015-06-04 | 五洋建設株式会社 | Admixture for concrete in water, concrete in water and manufacturing method for concrete in water |
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