JPH01160852A - Extremely highly fluidized concrete - Google Patents
Extremely highly fluidized concreteInfo
- Publication number
- JPH01160852A JPH01160852A JP32099087A JP32099087A JPH01160852A JP H01160852 A JPH01160852 A JP H01160852A JP 32099087 A JP32099087 A JP 32099087A JP 32099087 A JP32099087 A JP 32099087A JP H01160852 A JPH01160852 A JP H01160852A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- reducing agent
- ultra
- cement
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 52
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 24
- 239000004568 cement Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 229920000896 Ethulose Polymers 0.000 claims abstract description 8
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 claims abstract description 8
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- -1 sulfonic acid compound Chemical class 0.000 claims abstract description 7
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 6
- 239000011707 mineral Substances 0.000 claims abstract description 6
- 229920005610 lignin Polymers 0.000 claims abstract description 4
- 229920005862 polyol Polymers 0.000 claims abstract description 4
- 150000003077 polyols Chemical class 0.000 claims abstract description 4
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 3
- 238000004898 kneading Methods 0.000 claims abstract 2
- 238000005243 fluidization Methods 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical group CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 239000011398 Portland cement Substances 0.000 abstract description 2
- 229920002678 cellulose Polymers 0.000 abstract description 2
- 239000001913 cellulose Substances 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 2
- 238000012856 packing Methods 0.000 abstract 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 abstract 1
- 239000004113 Sepiolite Substances 0.000 abstract 1
- 235000019355 sepiolite Nutrition 0.000 abstract 1
- 229910052624 sepiolite Inorganic materials 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000005056 compaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011210 fiber-reinforced concrete Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
イ．発明の目的
産業上の利用分野
本発明は、超高流動化コンクリートに関するものである
。[Detailed description of the invention] a. OBJECTS OF THE INVENTION INDUSTRIAL FIELD OF APPLICATION The present invention relates to ultra-highly fluidized concrete.
従来の技術
従来の流動化コンクリートは、単位水量を増加したり、
減水剤あるいは流動化剤を使用して単位水量を増さずに
、その流動性を保つようにしていた。Conventional technology Conventional fluidized concrete increases the unit water volume,
Water reducers or superplasticizers were used to maintain fluidity without increasing the unit water volume.
発明が解決しようとする問題点
しかしながら、上記従来の流動化コンクリートは、単位
水量やセメント量の増大により乾燥収縮やブリーソング
が多くて、ひび割れが発生し易いだけでなく、減水剤ま
たは流動化剤を使用した高スランプの流動化コンクリー
トでは、スランプロスが大きく品質管理が困難であった
。Problems to be Solved by the Invention However, the above-mentioned conventional fluidized concrete not only suffers from drying shrinkage and breeching due to an increase in the unit amount of water and cement, and is prone to cracking, but also has problems with water reducing agents or fluidizing agents. Fluidized concrete with high slump using this method had a large slump loss, making quality control difficult.
また、スランプを２２〜２４ｃｍに大きくすると、複雑
な型枠内や密度の高い配筋内への流動性や充填性は良い
が、材料分離を生じてジャンカや砂乳が発生し易い等の
相反する性質があって、品質管理や施工管理が難しい等
の問題、αがあった。In addition, increasing the slump to 22 to 24 cm provides good fluidity and filling properties in complex formwork and dense reinforcement, but there are conflicts such as material separation and the formation of junk and sand milk. There were problems such as difficulty in quality control and construction management due to the nature of construction.
本発明は上記従来の問題点を解決するためになされたも
ので、その目的とするところは、複雑な形状のコンクリ
ート部材、配筋密度の高い部材、或いは大隅部等のパイ
ブレーク等による締め固め作業の困難な個所でも、締め
固め作業なしでも均一な品質で非常に良い流動性・充填
性を有し、材料分離の生じることのない超高流動化コン
クリートを提供することにある。The present invention was made in order to solve the above-mentioned conventional problems, and its purpose is to compact concrete members with complex shapes, members with high reinforcement density, or compaction using pie breaks, etc. at large corners, etc. The purpose of the present invention is to provide ultra-highly fluidized concrete that has uniform quality, very good fluidity and filling properties even in difficult places without compaction work, and does not cause material separation.
口０発明の構成
問題点を解決するための手段
本発明の超高流動化コンクリートは、セメント、骨材お
よび水等から成るベースコンクリートに、分離低減剤と
、消泡剤と、減水剤または流動化剤と、を添加すること
により構成されるが、この他、用途に応じてフライアッ
シュ、シリカ７ユームや鉱物粘土などの混和材も使用す
ることができる。Means for Solving the Constituent Problems of the Invention The ultra-highly fluidized concrete of the present invention is characterized by adding a separation reducing agent, an antifoaming agent, a water reducing agent or a fluidizing agent to a base concrete consisting of cement, aggregate, water, etc. In addition to this, admixtures such as fly ash, silica, and mineral clay can also be used depending on the purpose.
セメントの種類としては、ポルトランドセメント、高炉
セメント、シリカセメント、７ライアツシユセメント等
いずれを使用してもよい。As for the type of cement, any of portland cement, blast furnace cement, silica cement, 7 lithium cement, etc. may be used.
骨材についても、砂、砂利、砕石など限定されず、ＪＩ
Ｓの基準に合格したものであればいずれを使用してもよ
い。Aggregates are not limited to sand, gravel, crushed stone, etc.
Any material may be used as long as it passes the S criteria.
分離低減剤としては、非イオン性の水溶性セルロースで
あるエチルヒドロキシエチルセルロースやセビオライト
系鉱物またはポリエチレンオキサイドを単独または混合
して使用し、その配合度はセメントに対してエチルヒド
ロキシエチルセルロースが０．０１〜２．０重量％、セ
ビオライト系鉱物がセメントに対して０．１〜５．０重
量％、またポリエチレンオキサイドがセメントに対して
０゜０１〜３．０重量％である。As the separation reducing agent, ethyl hydroxyethyl cellulose, which is a nonionic water-soluble cellulose, Seviolite minerals, or polyethylene oxide are used alone or in combination, and the mixing ratio is 0.01 to 0.01 to 0.01 ethyl hydroxyethyl cellulose to cement. 2.0% by weight, Seviolite mineral from 0.1 to 5.0% by weight based on the cement, and polyethylene oxide from 0.01 to 3.0% by weight based on the cement.
消泡剤としては、非イオン性のＳＮデフォ−マー１４Ｈ
Ｐを使用し、その配合度はセメントに対して０．０１〜
１．０重量％であり、コンクリートの空気連行量が０．
１〜１０％の間で調整可能である。As an antifoaming agent, nonionic SN Deformer 14H is used.
P is used, and its blending ratio is 0.01 to 0.01 to cement.
1.0% by weight, and the amount of air entrained in the concrete is 0.
It can be adjusted between 1 and 10%.
減水剤または流動化剤は、一般に使用されているポリオ
ール複合体、リグニンスルホン酸化合物、オキシカルボ
ン酸塩、高縮合トリフ′）ン系化合物、メラミンスルホ
ン酸塩系化合物等である。ただし、ナフタリンスルホン
酸塩高縮合物はエチルヒドロキシエチルセルロ−ス
Ｐを混合した時の流動性や充填性が充分確保できない。Water reducing agents or fluidizing agents include commonly used polyol complexes, lignin sulfonic acid compounds, oxycarboxylic acid salts, highly condensed triphone-based compounds, melamine sulfonate-based compounds, and the like. However, the naphthalene sulfonate high condensate cannot ensure sufficient fluidity and filling properties when mixed with ethylhydroxyethylcellulose P.
上記配合度によるコンクリートの混練時の性状は、スラ
ンプが２０〜２７ｃａ＋，スランプ７０−が４５−８０
ｃ＋ｏおよび充填性が３．５〜Ｏｃｔｏで材料分離を生
じない。The properties of concrete when mixed with the above mixing ratio are slump of 20 to 27ca+, slump of 70- to 45-80
No material separation occurs when the c+o and filling properties are 3.5 to Octo.
また、超高流動性能が混線後９０分程度でも保持でき、
ポンプ圧送前後の性状も変わらない。In addition, ultra-high flow performance can be maintained for about 90 minutes after crosstalk,
The properties before and after pumping are also unchanged.
さらに、上記添加剤を加える前のペースコンクリ−１と
比較しても、強度性能は変わらない。Furthermore, even when compared with Pace Concrete 1 before adding the above additives, the strength performance remains unchanged.
次に、上記超高流動化コンクリートの製造方法について
説明する。Next, a method for producing the ultra-highly fluidized concrete will be explained.
（１）生コンプラントのミキサー（傾胴型、強制練り型
、その他）にセメント、骨材、分離低減剤（エチルヒド
ロキシエチルセルロース、セビオライト、ポリエチレン
オキサイド）と、消泡剤（ＳＮデフォ−マー１４８Ｐ）
とを投入し、ミキサーの性能に応じて充分空線り混合し
、その後、水と減水剤または流動化剤を添加して混練す
る。(1) Cement, aggregate, separation reducing agent (ethyl hydroxyethyl cellulose, Seviolite, polyethylene oxide), and antifoaming agent (SN Deformer 148P) are added to the mixer (tilting type, forced mixing type, etc.) for fresh concrete.
are added and mixed thoroughly depending on the performance of the mixer, and then water and a water reducing agent or a fluidizing agent are added and kneaded.
（２）練り上がった標準配合のコンクリートに分離低減
剤と、消泡剤と、減水剤または流動化剤と、をプラント
ミキサーに添加して再度混練する。(2) A separation reducing agent, an antifoaming agent, and a water reducing agent or fluidizing agent are added to the kneaded standard mix concrete in a plant mixer and kneaded again.
（３）ミキサー車に荷降しされた標準配合のコンクリー
トに現場到着後、分離低減剤と、消泡剤と、減水剤また
は流動化剤と、を添加してミキサー車で混練する。(3) After arriving at the site, the standard mixture concrete unloaded into a mixer truck is mixed with a separation reducing agent, an antifoaming agent, a water reducing agent or a fluidizing agent, and mixed in a mixer truck.
（４）全減水剤量の一部を予め添加して、スランプを２
０〜２５ｃｍの開にプラントミキサーで調整したコンク
リートに現場到着後、分離低減剤と、消泡剤と、残りの
減水剤または流動化剤と、を添加してミキサー車で混練
する。(4) Add a portion of the total amount of water reducing agent in advance to reduce the slump by 2
After arriving at the site, the concrete, which has been adjusted to an opening of 0 to 25 cm using a plant mixer, is mixed with a separation reducing agent, an antifoaming agent, and the remaining water reducing agent or fluidizing agent using a mixer truck.
（５）セメント、骨材、水、流動化剤、分離低減剤等の
各混和材、剤料を自動計量して供給することができる連
続線りミキサーにて混練する。(5) Cement, aggregate, water, fluidizer, separation reducing agent, and other admixtures and agents are kneaded using a continuous wire mixer that can automatically measure and supply the mixture.
実施例 ベースコンクリートとしては第１表に示す配合とした。Example The base concrete had the composition shown in Table 1.
上記配合のベースコンクリートに、エチルヒドロキシエ
チルセルローズをセメントに対して０゜３重量％、非イ
オン性のＳＮＮデフ−マー１４８Ｐを同じくセメントに
対して０．１重量％、減水剤としてＮＬ−４０００をセ
メントに対して３゜０重量％それぞれ添加して超高流動
化コンクリ−トを得た。To the base concrete of the above composition, 0.3% by weight of ethylhydroxyethylcellulose based on the cement, 0.1% by weight of the non-ionic SNN Dehumer 148P based on the cement, and NL-4000 as a water reducing agent were added. An ultra-highly fluidized concrete was obtained by adding 3.0% by weight of each to the cement.
上記超高流動化コンクリートの性状は、第２表に示す通
りである。The properties of the ultra-highly fluidized concrete are shown in Table 2.
上記第２表の性状の内、スランプの値はＪＩＳＡｌｌｏ
ｌのスランプ試験方法に基づいて得られた。Among the properties in Table 2 above, the slump value is JISAllo
It was obtained based on the slump test method of 1.
また、スランプ７０−の値は、第１図に示すように、ま
ず、鉄板１の上にスランプ試験用のスランプコーン２を
置いて、この中に上記超高流動化コンクリート３を上端
まで充填した後、上記スランプコーン２を静かに鉛直に
引き上げ、その時に超高流動化コンクリート３が鉄板１
上に広がった広がり直径の最大値と見られる所および、
その直角方向の２箇所を測り、平均値をスランプ７０−
値とする。In addition, the value of slump 70- is calculated by first placing a slump cone 2 for the slump test on the iron plate 1 and filling it with the ultra-highly fluidized concrete 3 up to the upper end, as shown in Fig. 1. After that, the slump cone 2 is gently pulled up vertically, and at that time, the ultra-highly fluidized concrete 3 is attached to the steel plate 1.
The point that appears to be the maximum value of the spreading diameter that spreads upward, and
Measure two points in the perpendicular direction and calculate the average value as slump 70-
value.
さらに、上記充填性の値については、第２図（Ａ）に示
すように、仕切板４で仕切ったボックス５の片側の第１
室６に超高流動化コンクリート７を底板８から４０ｃｍ
の高さまで充填し、その後、仕切板４を上方へ引き上げ
て、第２図（Ｂ）に示すように、底板８から１２ｃｍの
高さ位置に停止させ、超高流動化コンクリート７が第１
室６から第２室９へ流動し、第２室９に充填された時の
第１室と第２室にある超高流動化コンクリート７の高さ
の差Ｈをもって、充填性の値とする。Furthermore, regarding the above-mentioned filling property value, as shown in FIG. 2(A), the first
Place ultra-highly fluidized concrete 7 in chamber 6 at a distance of 40 cm from bottom plate 8.
After that, the partition plate 4 is pulled upward and stopped at a height of 12 cm from the bottom plate 8, as shown in FIG.
When the concrete flows from the chamber 6 to the second chamber 9 and fills the second chamber 9, the difference H between the heights of the ultra-highly fluidized concrete 7 in the first and second chambers is taken as the filling property value. .
さらにまた、超高流動化コンクリートの強度特性につい
ては、第３図（Ａ）に示すような、柱状の実大構造物１
０を作成し、比較のためのベースコンクリート１１と本
発明の超高流動化コンクリート１３を打設する。Furthermore, regarding the strength characteristics of ultra-high fluidization concrete, a full-scale columnar structure 1 as shown in Figure 3 (A)
0 was prepared, and base concrete 11 for comparison and ultra-high fluidization concrete 13 of the present invention were poured.
打設方法としては、第３図（Ａ）のベースコンクリート
１１の場合には、１層を５０ｃｒｏずつ打ちながら高周
波棒バイブレーター３台により１層毎に２０秒間締め固
めを実施した。As for the pouring method, in the case of the base concrete 11 shown in FIG. 3(A), each layer was compacted for 20 seconds using three high-frequency rod vibrators while pouring 50 cr each layer.
第３図（Ｂ）に示す超高流動化コンク１７− ） １３
の場合には、コンクリートを締め固め作業なしで、連続
的に打設した。Ultra-high fluidization concrete shown in Figure 3 (B) 17- ) 13
In this case, concrete was poured continuously without compaction.
その結果は、第４図に示すように、いずれの高さにおい
ても強度はほぼ同じであり、本発明の超高流動化コンク
リートは、ベースコンクリートに比べて、強度が低下す
ることがないことが判った。As shown in Figure 4, the strength is almost the same at any height, and the ultra-high fluidization concrete of the present invention shows no decrease in strength compared to the base concrete. understood.
尚、本発明の超高流動化コンクリートの用途としては、
ＲＣ中高層住宅、２０桁、中空スラブ等の部材厚が薄く
て配筋密度の高い経済設計の構造物や、中空部のある壁
、打込高さの高い杭、連続壁、水中構造物、ＥＣＬ工法
等の締め固め困難な構造物や、鉄筋の代わりにアラミド
繊維、炭素繊維、ガラス繊維等を使用し、錆の発生の心
配がなくてかぶり厚さを少なくすることのできる繊維補
強コンクリート構造物等がある。In addition, the uses of the ultra-highly fluidized concrete of the present invention include:
Economically designed structures with thin members and high reinforcement density such as RC medium and high-rise housing, 20-digit hollow slabs, walls with hollow parts, piles with high driving height, continuous walls, underwater structures, ECL Structures that are difficult to compact due to construction methods, and fiber-reinforced concrete structures that use aramid fibers, carbon fibers, glass fibers, etc. instead of reinforcing bars and can reduce the cover thickness without worrying about rust. etc.
ハ０発明の効果
（１）バイブレータ−等による締め固め作業が不要にな
るので、施工が合理化・省力化されて、工費が安価にな
る。Effects of the Invention (1) Since compaction work using a vibrator or the like is not required, construction is streamlined and labor-saving, resulting in lower construction costs.
（２）材料分離がないので、ジャンカや砂肌等が発生す
ることがなく、高強度を保つことができる。(2) Since there is no material separation, there is no occurrence of jitters or sandy surfaces, and high strength can be maintained.
（３）流動性・充填性が良いので、複雑な形状の型枠内
や密な配筋内への充填が容易である。(3) Good fluidity and filling properties make it easy to fill molds with complex shapes or dense reinforcement.
（４）スランプの経時変化が少なく、品質管理が容易で
ある。(4) There is little change in slump over time, and quality control is easy.
（５）現場での人為的ミスによる欠陥、交通事情による
品質の低下やバラツキ等が少なくなり、耐久性・信頼性
の高いコンクリートが施工できる。(5) Defects caused by human error on site, deterioration in quality and variations due to traffic conditions are reduced, and highly durable and reliable concrete can be constructed.
第１図はスランプ７０−試験の説明図、第２図（Ａ）（
Ｂ）は充填性試験の説明図、第３図（Ａ＞（Ｂ）は強度
試験の説明図、第４図は柱状構造物の高さによる強度変
化の比較を示すグラフである。
１・・・鉄板、２・・・スランプコーン、３・・・超高
流動化コンクリート、４・・・仕切板、５・・・ボック
ス、６・・・第１室、７・・・超高流動化コンクリート
、８・・・底板、９・・・第２室、１０・・・柱状実大
構造物、１１・・・ベースコンクリート、１２・・・柱
状実大構造物、１３・・・超高流動化コンクリート。Figure 1 is an explanatory diagram of the slump 70 test, Figure 2 (A) (
B) is an explanatory diagram of the filling property test, Fig. 3 (A>(B) is an explanatory diagram of the strength test, and Fig. 4 is a graph showing a comparison of strength changes depending on the height of the columnar structure. 1.・Steel plate, 2...Slump cone, 3...Ultra high fluidization concrete, 4...Partition plate, 5...Box, 6...1st chamber, 7...Ultra high fluidization concrete , 8... Bottom plate, 9... Second chamber, 10... Columnar full-scale structure, 11... Base concrete, 12... Columnar full-size structure, 13... Ultra-high fluidization concrete.
Claims (4)
ロースであるエチルヒドロキシエチルセルロースやセビ
オライト系鉱物またはポリエチレンオキサイドを混合し
た分離低減剤と、非イオン性のＳＮデフォーマー１４Ｈ
Ｐからなる消泡剤と、ポリオール複合体、リグニンスル
ホン酸化合物、オキシカルボン酸塩、高縮合トリアジン
系化合物、メラミンスルホン酸塩系化合物等の減水剤ま
たは流動化剤を添加したことを特徴とする超高流動化コ
ンクリート。(1) A separation reducing agent made by mixing nonionic water-soluble cellulose ethyl hydroxyethyl cellulose, Seviolite minerals, or polyethylene oxide into base concrete, and nonionic SN deformer 14H.
It is characterized by the addition of an antifoaming agent consisting of P, and a water reducing agent or fluidizing agent such as a polyol complex, a lignin sulfonic acid compound, an oxycarboxylate salt, a highly condensed triazine compound, a melamine sulfonate compound, etc. Ultra-high fluidization concrete.
キシエチルセルロースが０．０１〜２．０重量％、セビ
オライト系鉱物がセメントに対して０．１〜５．０重量
％、またポリエチレンオキサイドがセメントに対して０
．０１〜３．０重量％配合することを特徴とする前記特
許請求の範囲第１項に記載の超高流動化コンクリート。(2) Add the above separation reducing agent to the cement by adding 0.01 to 2.0% by weight of ethyl hydroxyethylcellulose, 0.1 to 5.0% by weight of the seviolite mineral to the cement, and adding polyethylene oxide to the cement. against 0
．． The ultra-high fluidity concrete according to claim 1, wherein the ultra-high fluidity concrete is blended in an amount of 01 to 3.0% by weight.
重量％配合し、コンクリートの空気連行量が０．１〜１
０％の間で調整可能であることを特徴とする前記特許請
求の範囲第１項に記載の超高流動化コンクリート。(3) Add 0.01 to 1.0 of the above antifoaming agent to the cement.
By weight%, the amount of air entrained in concrete is 0.1 to 1.
The ultra-high fluidity concrete according to claim 1, which is adjustable between 0% and 0%.
ランプフローが４５〜８０ｃｍおよび充填性が３．５〜
０ｃｍであることを特徴とする前記特許請求の範囲第１
項、第２項または第３項に記載の超高流動化コンクリー
ト。(4) Properties during kneading include a slump of 20 to 27 cm, a slump flow of 45 to 80 cm, and a filling property of 3.5 to 27 cm.
Claim 1 characterized in that the diameter is 0 cm.
The ultra-highly fluidized concrete according to item 1, 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32099087A JPH01160852A (en) | 1987-12-18 | 1987-12-18 | Extremely highly fluidized concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32099087A JPH01160852A (en) | 1987-12-18 | 1987-12-18 | Extremely highly fluidized concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01160852A true JPH01160852A (en) | 1989-06-23 |
Family
ID=18127551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32099087A Pending JPH01160852A (en) | 1987-12-18 | 1987-12-18 | Extremely highly fluidized concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01160852A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069258A (en) * | 1991-03-07 | 1994-01-18 | Nippon Cement Co Ltd | Superhigh-fluidity concrete |
| JPH06127998A (en) * | 1992-10-16 | 1994-05-10 | Kao Corp | Self-filling concrete composition |
| KR101969328B1 (en) * | 2017-10-12 | 2019-04-17 | 동남기업 주식회사 | Admixture composition for low-powder, high-flow concrete |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141448A (en) * | 1983-01-28 | 1984-08-14 | 信越化学工業株式会社 | Aid for spray working |
| JPS59227754A (en) * | 1983-06-06 | 1984-12-21 | 三井化学株式会社 | Low shrinkage self leveling material |
-
1987
- 1987-12-18 JP JP32099087A patent/JPH01160852A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141448A (en) * | 1983-01-28 | 1984-08-14 | 信越化学工業株式会社 | Aid for spray working |
| JPS59227754A (en) * | 1983-06-06 | 1984-12-21 | 三井化学株式会社 | Low shrinkage self leveling material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069258A (en) * | 1991-03-07 | 1994-01-18 | Nippon Cement Co Ltd | Superhigh-fluidity concrete |
| JPH06127998A (en) * | 1992-10-16 | 1994-05-10 | Kao Corp | Self-filling concrete composition |
| KR101969328B1 (en) * | 2017-10-12 | 2019-04-17 | 동남기업 주식회사 | Admixture composition for low-powder, high-flow concrete |
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