JPH0339024B2 - - Google Patents
Info
- Publication number
- JPH0339024B2 JPH0339024B2 JP58083806A JP8380683A JPH0339024B2 JP H0339024 B2 JPH0339024 B2 JP H0339024B2 JP 58083806 A JP58083806 A JP 58083806A JP 8380683 A JP8380683 A JP 8380683A JP H0339024 B2 JPH0339024 B2 JP H0339024B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- weight
- resistance
- parts
- portland cement
- 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 - Lifetime
Links
- 239000011398 Portland cement Substances 0.000 claims description 23
- 239000004568 cement Substances 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 239000002253 acid Substances 0.000 description 13
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000004115 Sodium Silicate Substances 0.000 description 7
- 229910052911 sodium silicate Inorganic materials 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000011396 hydraulic cement Substances 0.000 description 6
- 239000004375 Dextrin Substances 0.000 description 5
- 229920001353 Dextrin Polymers 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 235000019425 dextrin Nutrition 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229920002472 Starch Polymers 0.000 description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 3
- 229930006000 Sucrose Natural products 0.000 description 3
- 239000011400 blast furnace cement Substances 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000005720 sucrose Substances 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 235000001727 glucose Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 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
- 238000007654 immersion Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 239000011388 polymer cement concrete Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000005060 rubber Substances 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
- 239000011734 sodium Substances 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 150000008054 sulfonate salts 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
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
本発明は、耐薬品性、耐熱性にすぐれた結合材
に関するものである。
従来、ポルトランドセメントと呼ばれるものに
は、通常、普通ポルトランドセメント、早強ポル
トランドセメント、及び耐硫酸塩ポルトランドセ
メント等があるが。これらポルトランドセメント
は酸性物質に対し抵抗性がないため、耐酸性を要
求される箇所に施工することはできず、強いて施
工しても頻繁に補修をしなければならないという
課題があつた。
一方、耐酸セメントと呼ばれるものには、水ガ
ラス系、アルミナセメント系、及び高炉セメント
系があるが、水ガラス系のものは耐アルカリ性や
耐水性が低い、アルミナセメント系のものは酸の
種類や濃度によつて耐酸効果を全く発現しないこ
とがある、高炉セメント系のものはポルトランド
セメントをかなり含んでいるので耐酸性は高くな
い、などの課題があつた。
このため水ガラスにアルミナセメントあるいは
フライアツシユなどを配合し、化学抵抗性を改良
する試みがなされているが未だ満足なものが得ら
れていない（特公昭47−32811号公報）。
また、ポルトランドセメントは200〜250℃以上
の温度における長期間使用は危険であるので一般
にアルミナセメントを耐火物バインダーとして使
用している。
しかしながら、アルミナセメントは500〜1000
℃のいわゆる中間温度領域における強度が小さい
という課題があつた。
このため、ポルトランドセメントや微粒のシリ
カを添加する方法が提案されているが、長期の耐
久性について充分ではなかつた（特開昭57−3772
号公報、特開昭58−15086号公報）。
本発明は、ポルトランドセメント又はアルミナ
セメントに存在する前記の耐酸性や耐熱性の課題
の改善を目的としたものである。
即ち、本発明は、ポルトランドセメント又はア
ルミナセメントと、反応性シリカ質含有物と、ポ
ルトランドセメント又はアルミナセメント100重
量部に対し0.5〜4.0重量部の糖類とを配合してな
る耐薬品性、耐熱性結合材である。
以下、さらに詳しく本発明を説明する。
本発明に係るポルトランドセメント又はアルミ
ナセメント（以下水硬性セメントという）のポル
トランドセメントとしては、普通ポルトランドセ
メント、早強ポルトランドセメント、及び中庸熱
セメントなどのポルトランドセメント、さらに、
これらポルトランドセメントにシリカ物質を混入
した高炉セメントやフライアツシユセメントなど
が挙げられる。
また、本発明に係る反応性シリカ質含有物とし
ては、いわゆる活性シリカ、オパール、シリカフ
ラワー、コロイダルシリカ、ケイソウ土、アエロ
ジル、シリカゲル、ガラス質の１、２、３、４号
珪酸ナトリウム、結晶質の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
等が挙げられる。このうち、珪酸ナトリウム系の
ものについては、組成はNa2O／SiO2のモル比
が、0.1〜5.0が好ましく、0.2〜1.1がより好まし
い。
反応性シリカ質含有物の使用量は、水硬性セメ
ント100重量部に対し、１〜100重量部が好まし
く、20〜60重量部がより好ましく、強度発現と耐
薬品性と耐熱性が実用上バランスのとれた結合材
を得ることができる面から、30〜40重量部が最も
好ましい。
本発明に係る糖類とは、分散剤としての機能を
有し、水硬性セメントや反応性シリカ質含有物と
併用することによつて、著しい作業性改善と耐薬
品性の向上効果があるものである。
なお、分散剤として一般に市販されているもの
には、分子内にスルホン基を有する化合物、例え
ば、アルキルアリルスルホン酸塩系、芳香族多環
縮合物スルホン酸塩性、及びオキシ有機酸塩系等
がある。
糖類としては、庶糖、果糖、ブドウ糖、デンプ
ン、デキストリン、及びその他の単糖類や多糖類
であり、これらのうち一種又は二種以上が使用可
能である。そのうち、特に、デキストリンの使用
が最も好ましい。
糖類の使用量は、水硬性セメント100重量部に
対し、0.5〜4.0重量部である。
さらに耐薬品性を向上させるために、一般のポ
リマーセメントコンクリート用ポリマーを併用す
ることは好ましい。
ポリマーとしては、例えば、天然ゴム（NR）、
クロロプレンゴム（CR）、スチレンブタジエンゴ
ム（SBR）、及びアクリロニトリルブタジエンゴ
ム（NBR）等のゴムラテツクス、エポキシ、塩
化ビニール、塩化ビニリデン、酢酸ビニール、エ
チレン一酢酸ビニル共重合物、アスフアルト、主
びゴムアスフアルト等の樹脂エマルジヨン、並び
に、カゼイン、セルロース誘導体、エチレングリ
コール−プロピレングリコール共重合体、ビニー
ルアルコール、アクリル酸塩、フルスリルアルコ
ール、及びアクリルアミド等の水溶性ポリマーが
挙げられ、これらを粉末化して添加してもよい。
これらポリマーを配合すると耐薬品性に限らず接
着力、曲げ強度及び流動性が向上する。
本発明の結合材は耐薬品性が要求される構造
物、コンクリート二次製品など、普通ポルトラン
ドセメントが使用されている用途すべてに用いら
れる。また普通ポルトランドセメントで作製され
た構造物、あるいは、ヒユーム管、パイル、及び
ポール等のコンクリート二次製品の表面をライニ
ングすることによつて耐薬品性を付与することも
できる。さらには、普通ポルトランドセメントと
比べ著しく耐熱性に優れているため、耐酸キヤス
タブルの結合材として使用することもできる。さ
らに、接着性、耐水性、及び流動性が優れている
ため、床仕上材、即ち、セルフレベリング材とし
て、特に化学薬品や食品などを取扱う場所の床材
として用いれば優れた効果が得られる。
実施例
以下実施例を挙げて本発明を具体的に説明す
る。
実施例 １
普通ポルトランドセメントとアルミナセメント
に、反応性シリカ含有物として、シリカフラワー
と３号珪酸ナトリウムを用い、糖類としてデキス
トリンを使用して、表−１に示す種々の比率に配
合し結合材を調製した。これに砂と水を加えて混
練し供試体を作製し、強度発現や耐薬品性の試験
を行なつた。その結果を表−１に併記する。
なお、供試体はセメント：砂比１：２、水・セ
メント比40％とし、４×４×16cmのものを作り、
20℃、80％R.H.で気乾養生した。
The present invention relates to a bonding material with excellent chemical resistance and heat resistance. Conventionally, things called Portland cement include ordinary Portland cement, early-strength Portland cement, and sulfate-resistant Portland cement. Since these Portland cements have no resistance to acidic substances, they cannot be applied to areas that require acid resistance, and even if they were to be used, they had the problem of requiring frequent repairs. On the other hand, acid-resistant cements include water glass-based, alumina cement-based, and blast-furnace cement. Water glass-based cements have low alkali resistance and water resistance, while alumina cement-based cements have low alkali resistance and water resistance. Problems were that depending on the concentration, the acid resistance effect may not be exhibited at all, and that blast furnace cement-based materials do not have high acid resistance because they contain a considerable amount of Portland cement. For this reason, attempts have been made to improve the chemical resistance by adding alumina cement or fly ash to water glass, but nothing satisfactory has yet been achieved (Japanese Patent Publication No. 32811/1983). In addition, alumina cement is generally used as a refractory binder because it is dangerous to use Portland cement for a long period of time at temperatures above 200 to 250°C. However, alumina cement is 500-1000
The problem was that the strength was low in the so-called intermediate temperature range of °C. For this reason, methods of adding portland cement or fine silica have been proposed, but these have not been sufficient in terms of long-term durability (Japanese Patent Laid-Open No. 57-3772
(Japanese Patent Application Laid-open No. 15086/1986). The present invention aims to improve the above-mentioned problems of acid resistance and heat resistance that exist in Portland cement or alumina cement. That is, the present invention provides a chemical-resistant and heat-resistant material made by blending Portland cement or alumina cement, a reactive siliceous material, and 0.5 to 4.0 parts by weight of sugar per 100 parts by weight of Portland cement or alumina cement. It is a binding material. The present invention will be explained in more detail below. Examples of the Portland cement of the Portland cement or alumina cement (hereinafter referred to as hydraulic cement) according to the present invention include ordinary Portland cement, early strength Portland cement, and moderate heat cement;
Examples include blast furnace cement and fly ash cement, which are made by mixing silica into Portland cement. In addition, the reactive siliceous substances according to the present invention include so-called activated silica, opal, silica flower, colloidal silica, diatomaceous earth, Aerosil, silica gel, vitreous No. 1, 2, 3, and 4 sodium silicate, crystalline sodium metasilicate,
Examples include sodium orthosilicate and sodium pyrosilicate. Among these, for the sodium silicate type, the molar ratio of Na 2 O/SiO 2 is preferably 0.1 to 5.0, more preferably 0.2 to 1.1. The amount of the reactive siliceous material to be used is preferably 1 to 100 parts by weight, more preferably 20 to 60 parts by weight, based on 100 parts by weight of hydraulic cement, which provides a practical balance between strength development, chemical resistance, and heat resistance. The most preferred amount is 30 to 40 parts by weight in terms of obtaining a smooth bonding material. The saccharide according to the present invention has a function as a dispersant, and when used in combination with hydraulic cement or a reactive siliceous substance, it has the effect of significantly improving workability and chemical resistance. be. In addition, commercially available dispersants include compounds having a sulfone group in the molecule, such as alkylaryl sulfonate salts, aromatic polycyclic condensate sulfonate salts, and oxyorganic acid salts. There is. Examples of saccharides include sucrose, fructose, glucose, starch, dextrin, and other monosaccharides and polysaccharides, and one or more of these can be used. Among these, the use of dextrin is particularly preferred. The amount of sugar used is 0.5 to 4.0 parts by weight per 100 parts by weight of hydraulic cement. In order to further improve chemical resistance, it is preferable to use a general polymer cement concrete polymer in combination. Examples of polymers include natural rubber (NR),
Rubber latex such as chloroprene rubber (CR), styrene butadiene rubber (SBR), and acrylonitrile butadiene rubber (NBR), epoxy, vinyl chloride, vinylidene chloride, vinyl acetate, ethylene monovinyl acetate copolymer, asphalt, rubber asphalt, etc. and water-soluble polymers such as casein, cellulose derivatives, ethylene glycol-propylene glycol copolymers, vinyl alcohol, acrylates, furthryl alcohol, and acrylamide, which can be powdered and added. Good too.
Blending these polymers improves not only chemical resistance but also adhesive strength, bending strength, and fluidity. The binder of the present invention can be used in all applications where Portland cement is normally used, such as structures that require chemical resistance and secondary concrete products. Chemical resistance can also be imparted by lining the surface of structures normally made with Portland cement or secondary concrete products such as humid pipes, piles, and poles. Furthermore, since it has significantly better heat resistance than ordinary Portland cement, it can also be used as a binding material for acid-resistant castables. Furthermore, since it has excellent adhesion, water resistance, and fluidity, it can be used with excellent effects as a floor finishing material, that is, a self-leveling material, especially as a flooring material in places where chemicals, food, etc. are handled. EXAMPLES The present invention will be specifically described below with reference to Examples. Example 1 Ordinary Portland cement and alumina cement were mixed with silica flour and No. 3 sodium silicate as reactive silica-containing substances, and dextrin was used as a saccharide in various ratios shown in Table 1, and binders were added. Prepared. Sand and water were added and kneaded to prepare specimens, which were tested for strength development and chemical resistance. The results are also listed in Table-1. The specimens were made with a cement:sand ratio of 1:2 and a water/cement ratio of 40%, measuring 4 x 4 x 16 cm.
It was air-dried and cured at 20°C and 80%RH.
【表】
なお、フロー値、圧縮強度はJIS R5201に従つ
て測定した。耐薬品性は７日間気乾養生後に各液
に浸漬し28日後に取出して重量測定を行ない変化
率を求めた。
実施例 ２
表−１に示す配合に、さらにSBRラテツクス
10重量部を加えたこと以外は実施例１と同様にし
て耐酸性試験を行なつた。その結果、実施例１の
各実験No.より重量変化率が１〜２割減少し、耐酸
性が向上した。
実施例 ３
セメント・砂比＝１：３としたこと以外は実施
例１と同様な配合で４×４×16cmのモルタル供試
体を作製し、耐熱性試験を行なつた。供試体は７
日間気乾養生後、表−２に示す各温度で３時間加
熱した。加熱後冷却して圧縮強度を測定した。
なお本実施例においてシヤモツト質の骨材を用
いた。[Table] The flow value and compressive strength were measured according to JIS R5201. Chemical resistance was determined by immersing in each solution after air-drying for 7 days, taking it out after 28 days, and measuring the weight to determine the rate of change. Example 2 SBR latex was added to the formulation shown in Table 1.
An acid resistance test was conducted in the same manner as in Example 1 except that 10 parts by weight was added. As a result, the weight change rate was reduced by 10 to 20% compared to each experiment No. of Example 1, and the acid resistance was improved. Example 3 A mortar specimen measuring 4 x 4 x 16 cm was prepared using the same composition as in Example 1 except that the cement/sand ratio was 1:3, and a heat resistance test was conducted. The specimen is 7
After being air-dried for one day, it was heated for 3 hours at each temperature shown in Table 2. After heating and cooling, the compressive strength was measured. Incidentally, in this example, a staghorn aggregate was used.
【表】
養生後：７日間気乾養生後
数値は圧縮強度(Kgf／cm2)
実施例 ４
水硬性セメントに対する反応性シリカ質含有物
の配合量を変えて、耐酸性、耐アルカリ性、及び
耐水性を調べた。表−１の実験No.１−５配合に３
号珪酸ナトリウムを、さらに、10、20、40、60、
80、及び100重量部加えたものを、各々50℃の、
30％H2SO4、30％NaOH、及び純水に浸漬した。
その他の実験条件は実施例１と同様である。
その結果、３号珪酸ナトリウムの追加添加量が
水硬性セメント100重量部に対し60重量部以下、
特に、10重量部では耐酸性が向上し、アルカリや
水に対する重量減少は28日浸漬後５％以下であつ
た。追加添加量が80重量部を越えると耐酸性は向
上するが、耐アルカリ性や耐水性は極端に低下
し、50℃の30％NaOHや純水中では７日以内に
供試体が崩壊した。
実施例 ５
普通ポルトランドセメント100重量部、３号珪
酸ナトリウム30重量部に、表−３に示すように、
デキストリンを添加したこと以外は実施例１と同
様に行つた。結果を表−３に併記する。[Table] After curing: After air drying for 7 days, the values are compressive strength (Kgf/cm 2 )
Example 4 Acid resistance, alkali resistance, and water resistance were investigated by varying the amount of reactive siliceous material added to hydraulic cement. 3 for experiment No. 1-5 combination in Table-1
No. sodium silicate, further 10, 20, 40, 60,
80 and 100 parts by weight were added at 50℃, respectively.
Soaked in 30% H 2 SO 4 , 30% NaOH, and pure water.
Other experimental conditions were the same as in Example 1. As a result, the additional amount of No. 3 sodium silicate added was 60 parts by weight or less per 100 parts by weight of hydraulic cement.
In particular, at 10 parts by weight, the acid resistance was improved, and the weight loss against alkali and water was less than 5% after 28 days of immersion. When the additional amount exceeds 80 parts by weight, the acid resistance improves, but the alkali resistance and water resistance are extremely reduced, and the specimen disintegrated within 7 days in 30% NaOH or pure water at 50°C. Example 5 100 parts by weight of ordinary Portland cement and 30 parts by weight of No. 3 sodium silicate were added as shown in Table 3.
The same procedure as in Example 1 was carried out except that dextrin was added. The results are also listed in Table-3.
【表】
実施例 ６
表−１に示す実験No.１−５の配合において、デ
キストリンの代わりにデンプン又はシヨ糖を用い
たこと以外は実施例１と同様にして耐酸性を調べ
た。その結果、デンプンの場合は約12％、シヨ糖
の場合は約15％劣つた。[Table] Example 6 Acid resistance was examined in the same manner as in Example 1 except that starch or sucrose was used instead of dextrin in the formulation of Experiment No. 1-5 shown in Table-1. As a result, starch was about 12% inferior, and sucrose was about 15% inferior.
Claims (1)
と、反応性シリカ質含有物と、ポルトランドセメ
ント又はアルミナセメント100重量部に対し0.5〜
4.0重量部の糖類とを配合してなる耐薬品性、耐
熱性結合材。1. Portland cement or alumina cement, reactive siliceous material, and 0.5 to 100 parts by weight of Portland cement or alumina cement.
A chemical-resistant and heat-resistant binder containing 4.0 parts by weight of sugar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58083806A JPS59207857A (en) | 1983-05-13 | 1983-05-13 | Chemical resistant heat resistant binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58083806A JPS59207857A (en) | 1983-05-13 | 1983-05-13 | Chemical resistant heat resistant binder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59207857A JPS59207857A (en) | 1984-11-26 |
| JPH0339024B2 true JPH0339024B2 (en) | 1991-06-12 |
Family
ID=13812904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58083806A Granted JPS59207857A (en) | 1983-05-13 | 1983-05-13 | Chemical resistant heat resistant binder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59207857A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007161546A (en) * | 2005-12-15 | 2007-06-28 | Toshiya Kawamata | Cement composition, hardening method of cement composition, and cement hardened material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5767057A (en) * | 1980-10-08 | 1982-04-23 | Denki Kagaku Kogyo Kk | Manufacture of centrifugally reinforced concrete moldings |
| JPS589863A (en) * | 1981-05-29 | 1983-01-20 | 電気化学工業株式会社 | Inorganic binder |
| JPS5930751A (en) * | 1982-08-14 | 1984-02-18 | 電気化学工業株式会社 | High acid-resistance heat-resistance binder |
-
1983
- 1983-05-13 JP JP58083806A patent/JPS59207857A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5767057A (en) * | 1980-10-08 | 1982-04-23 | Denki Kagaku Kogyo Kk | Manufacture of centrifugally reinforced concrete moldings |
| JPS589863A (en) * | 1981-05-29 | 1983-01-20 | 電気化学工業株式会社 | Inorganic binder |
| JPS5930751A (en) * | 1982-08-14 | 1984-02-18 | 電気化学工業株式会社 | High acid-resistance heat-resistance binder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59207857A (en) | 1984-11-26 |
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