JPH03290348A - Polymer cement composition - Google Patents
Polymer cement compositionInfo
- Publication number
- JPH03290348A JPH03290348A JP8946790A JP8946790A JPH03290348A JP H03290348 A JPH03290348 A JP H03290348A JP 8946790 A JP8946790 A JP 8946790A JP 8946790 A JP8946790 A JP 8946790A JP H03290348 A JPH03290348 A JP H03290348A
- Authority
- JP
- Japan
- Prior art keywords
- blast furnace
- ethylene
- acetate copolymer
- vinyl acetate
- copolymer emulsion
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 14
- 239000011414 polymer cement Substances 0.000 title claims abstract description 9
- 239000000839 emulsion Substances 0.000 claims abstract description 31
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 22
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 22
- 239000002893 slag Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 229920000642 polymer Polymers 0.000 abstract description 15
- 239000000843 powder Substances 0.000 abstract description 8
- 239000003513 alkali Substances 0.000 abstract description 6
- 230000009477 glass transition Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 159000000000 sodium salts Chemical class 0.000 abstract description 2
- 239000002269 analeptic agent Substances 0.000 abstract 3
- 230000035699 permeability Effects 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- 239000002253 acid Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 9
- 239000004568 cement Substances 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 238000004017 vitrification Methods 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- -1 amorphous 1 Chemical compound 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- PMYUVOOOQDGQNW-UHFFFAOYSA-N hexasodium;trioxido(trioxidosilyloxy)silane Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])O[Si]([O-])([O-])[O-] PMYUVOOOQDGQNW-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000011388 polymer cement concrete Substances 0.000 description 1
- 239000011433 polymer cement mortar Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000021 stimulant Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- POWFTOSLLWLEBN-UHFFFAOYSA-N tetrasodium;silicate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-] POWFTOSLLWLEBN-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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
- C04B28/08—Slag 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)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、ポリマーセメント組成物、詳しくは、高度な
化学抵抗性を有するポリマーセメント組成物に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to polymer cement compositions, and in particular to polymer cement compositions with a high degree of chemical resistance.
〈従来の技術とその課題〉
従来より、セメントに、エチレン−酢酸ビニル系共重合
体、スチレン−ブタジェン系共重合体及びポリアクリレ
ート等の高分子エマルジョンを配合すると、接着性、耐
久性、耐水性及び強度等に優れたモルタル又はコンクリ
ート組成物が得られることはよく知られている（特公昭
４７−３３０５４号公報等）。<Conventional technology and its problems> Conventionally, when cement is blended with polymer emulsions such as ethylene-vinyl acetate copolymer, styrene-butadiene copolymer, and polyacrylate, adhesiveness, durability, and water resistance are improved. It is well known that mortar or concrete compositions with excellent strength and the like can be obtained (Japanese Patent Publication No. 33054/1983, etc.).
しかしながら、セメントに前記の高分子エマルジョンを
配合したポリマーセメント組成物では、耐酸性の向上は
みられず、かえって、高分子エマルジョンを添加しない
配合より劣る結果も得られている（土木建築分野におけ
るポリマーセメント系の新しい展開、産業技術研究会、
昭和５８年発行、Ｐ２−６〜２−７ 大濱嘉彦、ポリ
マーセメントモルタル及びコンクリートの耐久性）。However, polymer cement compositions made by blending the above-mentioned polymer emulsions with cement do not show any improvement in acid resistance, and on the contrary, results are obtained that are inferior to formulations without the addition of polymer emulsions (polymer in the civil engineering and construction field). New developments in cement systems, Industrial Technology Research Group,
Published in 1981, P2-6 to 2-7 Yoshihiko Ohama, Durability of Polymer Cement Mortar and Concrete).
また、高炉スラグとアルカリ刺激剤を主成分とする結合
材は、酸濃度５％以下であるＰ）ｌｅＮ域内の比較的低
濃度下での耐酸性は優れでいるものの、例えば、酸濃度
１５％以上の高濃度下での効果は未だ不充分であった。Furthermore, although the binder whose main components are blast furnace slag and an alkali stimulant have excellent acid resistance at relatively low concentrations within the P)leN range, where the acid concentration is 5% or less, for example, when the acid concentration is 15%, The effects under the above high concentrations were still insufficient.
本発明者は、これら課題を解消すべく、種々検討した結
果、高炉水砕スラグとアルカリ刺激剤を主成分とする粉
体に、特定の高分子エマルジョンを併用することにより
、高濃度下での耐酸性を有するセメント組成物が得られ
ることの知見を得て本発明を完成するに至った。As a result of various studies in order to solve these problems, the present inventor has found that by using a specific polymer emulsion in combination with a powder mainly composed of granulated blast furnace slag and an alkaline stimulant, it is possible to solve the problem under high concentration. The present invention was completed based on the knowledge that a cement composition having acid resistance can be obtained.
く問題を解決するための手段〉
即ち、本発明は、微粉末の高炉水砕スラグ、アルカリ刺
激剤及びエチレン−酢酸ビニル共重合体エマルジョンを
主成分とするポリマーセメント組成物である。Means for Solving the Problems> That is, the present invention is a polymer cement composition whose main components are finely powdered granulated blast furnace slag, an alkali stimulant, and an ethylene-vinyl acetate copolymer emulsion.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明に係る微粉末の高炉水砕スラグは、製鉄所の高炉
より副生ずる高炉スラグを、水冷又は空冷などの急冷に
より非晶質化したものである。The finely powdered granulated blast furnace slag according to the present invention is obtained by amorphizing blast furnace slag produced as a by-product from a blast furnace in a steelworks by rapid cooling such as water cooling or air cooling.
高炉水砕スラグのガラス化率は５０％以上で、塩基度”
” （ＣａＯｆＭｇＯ＋Ａ１ｚＯ３）／５ｉＯｚ＝ １
．５以上が好ましい。なかでも、ＣａＯ含有量の低いも
のほど化学抵抗性を高める面から好ましいが、反応性が
不良となる傾向があり、通常、ＣａＯ含有量が３５〜４
５％程度が使用されている。The vitrification rate of granulated blast furnace slag is over 50%, and the basicity
” (CaOfMgO+A1zO3)/5iOz= 1
．． 5 or more is preferable. Among these, those with a lower CaO content are preferable from the viewpoint of increasing chemical resistance, but they tend to have poor reactivity, and usually those with a CaO content of 35 to 4
Approximately 5% is used.
高炉水砕スラグの粒度は、ブレーンで３，０００ｃ＋ｆ
１７ｇ以上が好ましく 、５，０００〜８，０００ｃ１
ｉＩ／ｇがより好ましい。３，０００ｃ＋＋！／ｇ未満
では強度発現が十分でなく、８．０ＯＯｃ１！／ｇを超
えると乾燥収縮が大きく、亀裂発生の原因ともなり、か
つ、粉砕に動力がかかり経済的ではなくなるため好まし
くない。The particle size of granulated blast furnace slag is 3,000c+f at Blaine.
Preferably 17g or more, 5,000 to 8,000c1
iI/g is more preferred. 3,000c++! If it is less than /g, the strength will not be sufficiently developed, and 8.0OOc1! If it exceeds /g, drying shrinkage will be large, causing cracking, and grinding will require power, making it uneconomical.
本発明に係るアルカリ刺激剤としては、ナトリウム、カ
リウム及びリチウム等、アルカリ金属の水酸化物及び／
又は炭酸塩のアルカリ塩が使用可能である。そのうち、
経済的にはナトリウム塩の使用が最も好ましい。The alkali stimulants according to the present invention include hydroxides and/or alkali metals such as sodium, potassium, and lithium.
Alternatively, alkaline salts of carbonates can be used. One of these days,
Economically, the use of the sodium salt is most preferred.
アルカリ刺激剤の使用量は、高炉水砕スラグ１００重量
部に対して、１〜３０重量部が好ましい。１重量部未満
では強度発現効果は小さ（，３０重量部を越えると強度
が変わらず実用的ではない。The amount of the alkaline stimulant used is preferably 1 to 30 parts by weight per 100 parts by weight of granulated blast furnace slag. If it is less than 1 part by weight, the strength development effect is small (and if it exceeds 30 parts by weight, the strength will not change and it is not practical.
本発明に係るエチレン−酢酸ビニル共重合体エマルジョ
ン（以下ＥＶＡエマルジョンという）とは、ポリマーと
して、エチレン−酢酸ビニル共重合体（以下ＥＶＡとい
う）を使用したエマルジョンであって、ポリマーのガラ
ス転位温度が１０°Ｃ以下の範囲内にあるものが、塗膜
の接着力や柔軟性の面で好ましく、ポリマー組成が、エ
チレン／酢酸ビニル＝１０〜４０／９０〜６０の重合比
を持つものからなるＥＶＡエマルジョンがより好ましい
。The ethylene-vinyl acetate copolymer emulsion (hereinafter referred to as EVA emulsion) according to the present invention is an emulsion that uses ethylene-vinyl acetate copolymer (hereinafter referred to as EVA) as a polymer, and the glass transition temperature of the polymer is EVA which is within the range of 10°C or less is preferable in terms of adhesion and flexibility of the coating film, and whose polymer composition has a polymerization ratio of ethylene/vinyl acetate = 10 to 40/90 to 60. Emulsions are more preferred.
ＥＶＡエマルジョンは、通常、液体で使用するが、粉末
タイプの使用も可能である。EVA emulsion is usually used in liquid form, but it can also be used in powder form.
ＥＶＡエマルジョンの使用量は、高炉水砕スラグ１００
重量部に対して、固形分換算で２〜５０重量部が好まし
く、１０〜２０重量部がより好ましい。２重量部未満で
は、耐酸性の向上がみられず、５０重量部を越えると強
度の低下が著しくなる傾向がある。The amount of EVA emulsion used is 100 ml of granulated blast furnace slag.
It is preferably 2 to 50 parts by weight, more preferably 10 to 20 parts by weight in terms of solid content. If it is less than 2 parts by weight, no improvement in acid resistance is observed, and if it exceeds 50 parts by weight, there is a tendency for the strength to decrease significantly.
本発明では、さらに、耐酸性の向上や水比低減の面から
、反応性シリカ質含有物などのシリカ物や減水剤を使用
することは好ましい。In the present invention, from the viewpoint of improving acid resistance and reducing the water ratio, it is preferable to use a silica substance such as a reactive siliceous substance or a water reducing agent.
本発明で使用するシリカ物は、アルカリ金属酸化物とア
ルカリシリケート反応を起こし、耐酸性に優れた珪酸ゲ
ルを生成する。The silica material used in the present invention causes an alkali silicate reaction with an alkali metal oxide to produce a silicic acid gel having excellent acid resistance.
シリカ物としては、活性シリカ、オパール、シリカフラ
ワー、ケイソウ土、シリカゲル、１・２・３及び４号の
珪酸ナトリウム、メタ珪酸ナトリウム、オルソ珪酸ナト
リウム及びピロ珪酸ナトリウム等の非晶質や結晶質の各
種珪酸ナトリウムがあり、そのうち非晶質の１・２・３
及び４号の各種珪酸ナトリウムの使用が好ましい。Examples of silica include activated silica, opal, silica flower, diatomaceous earth, silica gel, amorphous and crystalline materials such as sodium silicate No. 1, 2, 3, and 4, sodium metasilicate, sodium orthosilicate, and sodium pyrosilicate. There are various types of sodium silicate, including amorphous 1, 2, and 3.
It is preferable to use various sodium silicates of No. 4 and No. 4.
シリカ物の使用量は、高炉水砕スラグ１００重量部に対
して、１〜３０重量部が好ましい。The amount of silica used is preferably 1 to 30 parts by weight per 100 parts by weight of granulated blast furnace slag.
また、本発明で使用する減水剤としては、一般に市販さ
れているセメント減水剤を使用することが可能である。Moreover, as the water reducing agent used in the present invention, it is possible to use a commercially available cement water reducing agent.
例えば、アルキルアリルスルホン酸塩系や芳香族多環縮
合物スルホン酸塩系などの分子内にスルホン基を有する
化合物、オキシ有機酸塩系及び糖類等の使用が好ましく
、これらのうち一種又は二種以上を使用することは、凝
結時間、フローダウン及び初期強度等の改善の面で有効
である。For example, it is preferable to use compounds having a sulfone group in the molecule such as alkylaryl sulfonates, aromatic polycyclic condensate sulfonates, oxyorganic acid salts, and sugars, and one or two of these may be used. Use of the above is effective in improving setting time, flow down, initial strength, etc.
減水剤の使用量は、高炉水砕スラグ１００重量部に対し
て、０．１〜５．０重量部が好ましく、０．２〜４．０
重量部がより好ましい。The amount of water reducing agent used is preferably 0.1 to 5.0 parts by weight, and 0.2 to 4.0 parts by weight, based on 100 parts by weight of granulated blast furnace slag.
Parts by weight are more preferred.
本発明では、前記材料に、さらに、骨材などを併用する
ことも可能である。In the present invention, it is also possible to use aggregate and the like in addition to the above-mentioned materials.
前記材料の混合方法は、特に制限されるものではないが
、例えば、■骨材を加えた、ＥＶＡエマルジョン以外の
各材料をプレミックスし、現場でＥＶＡエマルジョンと
水を加え混練りする方法。The method for mixing the materials is not particularly limited, but includes, for example, (2) a method in which each material other than the EVA emulsion is premixed with aggregate, and the EVA emulsion and water are added and kneaded on site.
■ＥＶＡエマルジョン以外の各材料をプレミックスし、
現場で骨材、ＥＶＡエマルジョン及び水を加えて混練り
する方法。■粉末ＥＶＡエマルジョンとその他の全材料
をプレミックスし水を加え混練する方法。などがある。■Premix each material other than EVA emulsion,
A method of adding and kneading aggregate, EVA emulsion and water on site. ■Method of pre-mixing powdered EVA emulsion and all other ingredients, adding water and kneading. and so on.
ＥＶＡエマルジョンは、水と別々に加えても良いが、あ
らかじめ水と混合させたものを加えることが好ましい。Although the EVA emulsion may be added separately from water, it is preferable to add the EVA emulsion mixed with water in advance.
〈実施例〉 以下、実施例を挙げて本発明を具体的に説明する。<Example> The present invention will be specifically described below with reference to Examples.
実施例１
ブレーン５，２００ｃｊ／ｇ、塩基度＝１．８７、ガラ
ス化率−９０％の高炉水砕スラグとアルカリ刺激剤とを
表−１のように用い、結合材を調整し、これに砂と高分
子エマルジョン含有の水を加えて混練りし、供試体を作
成し、強度発現や耐酸性の試験を行った。結果を表−１
に併記する。Example 1 Using granulated blast furnace slag with Blaine 5,200 cj/g, basicity = 1.87, and vitrification rate of -90% and an alkaline stimulant as shown in Table 1, the binder was adjusted and Sand and water containing a polymer emulsion were added and kneaded to create specimens, and strength development and acid resistance tests were conducted. Table 1 shows the results.
Also listed in
なお、各種高分子エマルジョンは液体のため混練り時水
と同時に加えた。Note that since the various polymer emulsions are liquids, they were added at the same time as water during kneading.
なお、供試体は、高分子エマルジョンを除くセメント組
成物／砂比が１／２、水比をフロー１７０閣にあわせ、
４ Ｘ ４ Ｘ１６ｃｍのものをつくり、３日間、２０
°Ｃ８０％ＲＨの気乾養生後、１５％１１．ＳＯ４溶液
に２８日間浸漬したもの（耐酸性Ｉ）、１５％ＨＣＩ溶
液に２８日間浸漬したもの（耐酸性■）の酸浸漬試験を
実施し、重量変化率と侵食量を測定した。なお、フロー
値と圧縮強度は、ＪＩＳ Ｒ５２０１にしたがって測定
した。In addition, the test specimen had a cement composition/sand ratio of 1/2, excluding the polymer emulsion, and a water ratio of 170%.
Make a 4 x 4 x 16 cm piece and spend 3 days making 20 pieces.
After air drying at 80% RH, 15% 11. An acid immersion test was performed on the samples immersed in SO4 solution for 28 days (acid resistance I) and 15% HCI solution for 28 days (acid resistance ■), and the rate of weight change and the amount of corrosion were measured. Note that the flow value and compressive strength were measured according to JIS R5201.
〈使用材料〉
高炉水砕スラグ：新田鉄製、ブレーン５．２００ｃｆｆ
ｌ／ｇアルカリ刺、激剤ａ：水酸化ナトリウム、ＮａＯ
Ｈ１徳山曹達製、粉末状
ｂ＝炭酸ナトリウム、ＮａｚｃＯ３、旭硝子製、軽灰
高分子エマルジョンルー１：電気化学工業社製商品名［
デンカＥＶＡテックス＃８３ＰＬＤＪ 固形分４５％、
エチレン／酢酸ビニル−２０／８０、ガラス転移温度０
°Ｃ
Ａ−２＝電気化学工業社製商品名［デンカＥＶＡテンク
ス＃８７」固形分５５％、エチレン／酢酸ビニル＝ １
４／９６、ガラス転移温度１０°Ｃ
Ｂ−１：武田薬品社製商品名「ウルトラゾールＣＭＸ
−４３Ｊ固形分４５％、アクリル酸エステル系共重合エ
マルジョン
Ｂ−２二武田薬品社製商品名［クロスレンけＸ −０２
Ｊ固形分４５％、スチレンブタジェン系共重合エマルジ
ョン
セメント ：普通ポルトランドセメント、電気化学
工業■製
実施例２
さらに、シリカ物と減水剤を表−２のように使用したこ
と以外は実施例１と同様に行った。なお、高分子エマル
ジョンＡ−４は粉末タイプのため、全材料をプレミック
スして混合した。結果を表−２に併記する。<Materials used> Granulated blast furnace slag: Made by Nitta Iron, Brain 5.200cff
l/g alkaline irritation, stimulant a: sodium hydroxide, NaO
H1 manufactured by Tokuyama Soda, powder b = sodium carbonate, NazcO3, manufactured by Asahi Glass, light ash polymer emulsion roux 1: manufactured by Denki Kagaku Kogyo Co., Ltd., product name [
Denka EVA Tex #83PLDJ solid content 45%,
Ethylene/vinyl acetate - 20/80, glass transition temperature 0
°C A-2 = Denki Kagaku Kogyo Co., Ltd. product name [Denka EVA Tenx #87] Solid content 55%, ethylene/vinyl acetate = 1
4/96, glass transition temperature 10°C B-1: Takeda Pharmaceutical Co., Ltd. trade name “Ultrasol CMX”
-43J solid content 45%, acrylic acid ester copolymer emulsion B-22 Manufactured by Takeda Pharmaceutical Co., Ltd. Product name [Crossrenke X -02
J solid content 45%, styrene-butadiene copolymer emulsion cement: Ordinary Portland cement, manufactured by Denki Kagaku Kogyo ■ Example 2 Example 1 was repeated except that silica and water reducing agent were used as shown in Table 2. I did the same. In addition, since the polymer emulsion A-4 is a powder type, all materials were premixed and mixed. The results are also listed in Table-2.
〈使用材料〉
高分子エマルジョン＾−３：電気化学工業社製商品名「
デンカＥＶＡテックス＃２１」固形分５５％、エチレン
／酢酸ビニル−７／９３、ガラス転移温度１５°Ｃ
Ａ−４＝電気化学工業社製商品名［デンカドライトンＢ
」粉末タイプ、エチレン／
酢酸ビニル−２０／８０、ガラス転移温度０°Ｃ
シリカ物 ：水ガラス、３号珪酸ナトリウム減水剤
：デキストリン、８澱化学社製前記材料以外は
実施例１と同様
〈発明の効果〉
本発明のポリマーセメント組成物は、
酸濃度の
高い条件下でも、
耐酸性を向上する効果を奏する。<Materials used> Polymer emulsion ^-3: Manufactured by Denki Kagaku Kogyo Co., Ltd., product name:
Denka EVA Tex #21” solid content 55%, ethylene/vinyl acetate-7/93, glass transition temperature 15°C A-4 = Denka Kagaku Kogyo Co., Ltd. product name [Denka Dryton B
"Powder type, ethylene/vinyl acetate - 20/80, glass transition temperature 0°C Silica: Water glass, No. 3 sodium silicate Water reducing agent: Dextrin, manufactured by 8 Starch Chemical Co., Ltd. Same as Example 1 except for the above materials. <Invention Effect> The polymer cement composition of the present invention has the effect of improving acid resistance even under conditions of high acid concentration.
Claims (1)
チレン−酢酸ビニル共重合体エマルジョンを主成分とす
るポリマーセメント組成物(1) A polymer cement composition whose main components are finely powdered granulated blast furnace slag, an alkaline stimulant, and an ethylene-vinyl acetate copolymer emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2089467A JP2919902B2 (en) | 1990-04-04 | 1990-04-04 | Polymer cement composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2089467A JP2919902B2 (en) | 1990-04-04 | 1990-04-04 | Polymer cement composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03290348A true JPH03290348A (en) | 1991-12-20 |
| JP2919902B2 JP2919902B2 (en) | 1999-07-19 |
Family
ID=13971517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2089467A Expired - Lifetime JP2919902B2 (en) | 1990-04-04 | 1990-04-04 | Polymer cement composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2919902B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8722772B2 (en) * | 2008-12-22 | 2014-05-13 | Wacker Chemie Ag | Hydraulically setting sealing composition |
| US8957137B2 (en) | 2008-12-22 | 2015-02-17 | Wacker Chemie Ag | Acid-resistant, hydraulically setting masses |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556870A (en) * | 2014-12-26 | 2015-04-29 | 泉州建华管桩有限公司 | Marble powder high-strength concrete |
-
1990
- 1990-04-04 JP JP2089467A patent/JP2919902B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8722772B2 (en) * | 2008-12-22 | 2014-05-13 | Wacker Chemie Ag | Hydraulically setting sealing composition |
| US8957137B2 (en) | 2008-12-22 | 2015-02-17 | Wacker Chemie Ag | Acid-resistant, hydraulically setting masses |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2919902B2 (en) | 1999-07-19 |
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