JP5295722B2 - コンクリートの製造方法 - Google Patents
コンクリートの製造方法 Download PDFInfo
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- JP5295722B2 JP5295722B2 JP2008285178A JP2008285178A JP5295722B2 JP 5295722 B2 JP5295722 B2 JP 5295722B2 JP 2008285178 A JP2008285178 A JP 2008285178A JP 2008285178 A JP2008285178 A JP 2008285178A JP 5295722 B2 JP5295722 B2 JP 5295722B2
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- NAPSCFZYZVSQHF-UHFFFAOYSA-N dimantine Chemical compound CCCCCCCCCCCCCCCCCCN(C)C NAPSCFZYZVSQHF-UHFFFAOYSA-N 0.000 description 1
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- 239000002270 dispersing agent Substances 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
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- LBQDOIAPKILHBJ-UHFFFAOYSA-M ethyl(trimethyl)azanium 2-methylprop-2-enimidate Chemical compound C(C)[N+](C)(C)C.C(C(=C)C)(=O)[NH-] LBQDOIAPKILHBJ-UHFFFAOYSA-M 0.000 description 1
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- BETBGSUJVVASHH-UHFFFAOYSA-N ethyl-dimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium Chemical class CC[N+](C)(C)CCOC(=O)C(C)=C BETBGSUJVVASHH-UHFFFAOYSA-N 0.000 description 1
- IEPUFAXAOSIERS-UHFFFAOYSA-O ethyl-dimethyl-[2-(prop-2-enoylamino)ethyl]azanium Chemical class CC[N+](C)(C)CCNC(=O)C=C IEPUFAXAOSIERS-UHFFFAOYSA-O 0.000 description 1
- QXEIGEVFRUEBCA-UHFFFAOYSA-O ethyl-dimethyl-[3-(2-methylprop-2-enoylamino)propyl]azanium Chemical class CC[N+](C)(C)CCCNC(=O)C(C)=C QXEIGEVFRUEBCA-UHFFFAOYSA-O 0.000 description 1
- PQPDDGPVZVCBAZ-UHFFFAOYSA-N ethyl-dimethyl-[3-(2-methylprop-2-enoyloxy)propyl]azanium Chemical class CC[N+](C)(C)CCCOC(=O)C(C)=C PQPDDGPVZVCBAZ-UHFFFAOYSA-N 0.000 description 1
- SFLDVYRLBRAQOZ-UHFFFAOYSA-O ethyl-dimethyl-[3-(prop-2-enoylamino)propyl]azanium Chemical class CC[N+](C)(C)CCCNC(=O)C=C SFLDVYRLBRAQOZ-UHFFFAOYSA-O 0.000 description 1
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- 238000005227 gel permeation chromatography Methods 0.000 description 1
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- GKQPCPXONLDCMU-CCEZHUSRSA-N lacidipine Chemical compound CCOC(=O)C1=C(C)NC(C)=C(C(=O)OCC)C1C1=CC=CC=C1\C=C\C(=O)OC(C)(C)C GKQPCPXONLDCMU-CCEZHUSRSA-N 0.000 description 1
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- 230000014759 maintenance of location Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
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- NHLUVTZJQOJKCC-UHFFFAOYSA-N n,n-dimethylhexadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCN(C)C NHLUVTZJQOJKCC-UHFFFAOYSA-N 0.000 description 1
- GBCKRQRXNXQQPW-UHFFFAOYSA-N n,n-dimethylprop-2-en-1-amine Chemical compound CN(C)CC=C GBCKRQRXNXQQPW-UHFFFAOYSA-N 0.000 description 1
- QQGJWWNPACORPU-UHFFFAOYSA-N n,n-dimethylpropan-1-amine;prop-2-enamide Chemical compound NC(=O)C=C.CCCN(C)C QQGJWWNPACORPU-UHFFFAOYSA-N 0.000 description 1
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- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 235000019423 pullulan Nutrition 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NTVDGBKMGBRCKB-UHFFFAOYSA-M sodium;12-hydroxyoctadecanoate Chemical compound [Na+].CCCCCCC(O)CCCCCCCCCCC([O-])=O NTVDGBKMGBRCKB-UHFFFAOYSA-M 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 229950000244 sulfanilic acid Drugs 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- AIUAMYPYEUQVEM-UHFFFAOYSA-N trimethyl(2-prop-2-enoyloxyethyl)azanium Chemical class C[N+](C)(C)CCOC(=O)C=C AIUAMYPYEUQVEM-UHFFFAOYSA-N 0.000 description 1
- QXEDTOCFLFELQK-UHFFFAOYSA-N trimethyl(3-prop-2-enoyloxypropyl)azanium Chemical class C[N+](C)(C)CCCOC(=O)C=C QXEDTOCFLFELQK-UHFFFAOYSA-N 0.000 description 1
- USFMMZYROHDWPJ-UHFFFAOYSA-N trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium Chemical class CC(=C)C(=O)OCC[N+](C)(C)C USFMMZYROHDWPJ-UHFFFAOYSA-N 0.000 description 1
- UOASMSQZBFHQGX-UHFFFAOYSA-O trimethyl-[2-(prop-2-enoylamino)ethyl]azanium Chemical class C[N+](C)(C)CCNC(=O)C=C UOASMSQZBFHQGX-UHFFFAOYSA-O 0.000 description 1
- XVIGJPONQXWIOK-UHFFFAOYSA-N trimethyl-[3-(2-methylprop-2-enoyloxy)propyl]azanium Chemical class CC(=C)C(=O)OCCC[N+](C)(C)C XVIGJPONQXWIOK-UHFFFAOYSA-N 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
工程(I):プラントにて、水、水硬性粉体、骨材、及びコンクリート混和剤を混練りし、水セメント重量比が25〜65重量%の水硬性組成物(I)を調製する工程
工程(II):コンクリート施工現場において、水硬性組成物(I)に一般式(a1)で表される化合物を含有するレオロジー改質剤を添加して、スランプフロー値が35〜75cmである水硬性組成物(II)を調製する工程
本発明の工程(I)は水(W)、水硬性粉体(C)、骨材〔細骨材(S)及び粗骨材(G)〕、及びコンクリート混和剤〔以下、コンクリート混和剤(I)という〕を混練し、W/C(重量比)が25〜65%である水硬性組成物(I)を調製する工程である。W/Cは、〔水(W)の重量/水硬性粉体(C)の重量〕×100(重量%)により算出される。
工程(II)は、工程(I)で得られた水硬性組成物(I)に、前記一般式(a1)で表される化合物を含有するレオロジー改質剤を添加して、スランプフロー値が35〜75cmである水硬性組成物(II)を調製する工程である。レオロジー改質剤と一緒にさらにカチオン性ポリマーやコンクリート混和剤を水硬性組成物(I)に添加しても良い。
カラム:α−M(東ソー製) 2本連結
溶離液:0.15mol/L硫酸Na、1%酢酸水溶液
流速 :1.0mL/min
温度 :40℃
検出器:RI
分子量標準はプルランを使用
R1c,R2c:水素原子又はメチル基
m1:0〜2の数
AO:炭素数2〜3のオキシアルキレン基
n:平均付加モル数であり、2〜300の数
X:水素原子又は炭素数1〜3のアルキル基
を表す。]
R3c,R4c,R5c:水素原子、メチル基又は(CH2)m2COOM2
R6c:水素原子又はメチル基
M1,M2,Y:水素原子、アルカリ金属、アルカリ土類金属(1/2原子)、アンモニウム、アルキルアンモニウム又は置換アルキルアンモニウム
m2:0〜2の数
を表す。]
反応槽にヘキサデシルジメチルアミン39.1kg、オクタデシルジメチルアミン100.4kgを仕込み、65℃に昇温した。イオン交換水487.2kg、p−トルエンスルホン酸の70%水溶液122.7kgを仕込み、攪拌した後、更にイオン交換水27kgを仕込み、1時間攪拌し均一化させた。得られた混合水溶液の全量を65℃まで昇温し、攪拌後、系内を窒素置換した。EO27.4kgを仕込み、3時間、65℃で反応させた。その後、反応器内の残圧を系外にブローし、65℃で200torr(26.7kPa)、30分間の脱気を行った。さらに、p−トルエンスルホン酸の70%水溶液32.3kgを仕込み、48重量%NaOH水溶液8.0kgで中和し、さらにカチオン性ポリマー〔ポリジメチルアミノエチルメタクリレートジエチル硫酸塩(重量平均分子量12万、カチオン化密度3.6meq/g)の35重量%水溶液〕155.4kg、消泡剤0.5kg(FSアンチフォームQ1−1183:東レ・ダウコーニング社製)を仕込み均一化させ、目的とするジメチルヒドロキシエチルアルキルアンモニウムp−トルエンスルホネート及びカチオン性ポリマーを含む混合水溶液約1tを得た。混合水溶液の分析値は、pH7.2、水分66.8%、原料アミン反応率99%であった。
フラスコに水50g、p−トルエンスルホン酸1水和物95.1g、イソプロピルアルコール(IPA)85.0gを仕込み、60℃に昇温、攪拌して溶解した。混合調整溶液を50から60℃に保ち、予め融解させておいた硬化牛脂ジメチルアミン145.4gを、60℃に保持して3時間かけて滴下した。滴下終了後、60℃でさらに1時間攪拌後、硬化牛脂ジメチルアミンのp−トルエンスルホン酸塩のIPA/水−混合溶液(1)375.5gを得た。次に、2Lのオートクレーブに、混合溶液(1)375gを仕込み、攪拌後、系内を窒素置換した。65℃まで昇温し、EO28.6gを仕込み、3時間反応させた。反応器内の残圧を系外にブローし、45℃で200torr(26.7kPa)、30分間の脱気をした。さらに、pH調整(p−トルエンスルホン酸1水和物、IPA)を行い、目的とするレオロジー改質剤(a−2)(ジメチルヒドロキシエチルアルキルアンモニウムp−トルエンスルホネートのIPA/水−混合溶液)390gを得た。
表3の配合1で、セメント(C)、細骨材(S)及び粗骨材(G)を100リットルの強制2軸ミキサーに投入後、20℃にて10秒間空練りを行った。次いで水道水(W)に、コンクリート混和剤をその添加量が表3の通りとなるように加えた混練水を加え60秒間本練りを行い、水硬性組成物(I)を調製した〔工程(I)〕。
・スランプフロー値:JIS A 1150
・ブリーディング量:JIS A 1123
・圧縮強度:JIS A 1108
・水(W):水道水
・セメント(C):普通ポルトランドセメント(太平洋セメント株式会社製普通ポルトランドセメントと住友大阪セメント株式会社製普通ポルトランドセメントの1:1混合物)、密度3.16g/cm3
・細骨材(S):君津産 山砂(密度2.60g/cm3、粗粒率2.63)
・粗骨材(G):鳥形山産 石灰砕石(密度2.70g/cm3、粗粒率7.03、最大寸法20mm)
実施例1と同様に、ただしコンクリート配合は表6の配合2の通りとし、コンクリート混和剤の種類を表7のように変更して、水硬性組成物(I)を得た〔工程(I)〕。傾胴式ミキサーに水硬性組成物(I)を移し、レオロジー改質剤及びコンクリート混和剤を表7の量で添加し180秒間混練し、水硬性組成物(II)を得た〔工程(II)〕。この水硬性組成物(II)は、水中不分離コンクリートとして好適である。
A:15%以下
B:15%超30%以下
C:30%超60%以下
D:60%超
水(W):水道水
セメント(C):普通ポルトランドセメント、市販品、密度3.16g/cm3
細骨材(S):千葉県君津産山砂、表乾密度2.62g/cm3、粗粒率2.57
粗骨材(G):高知県鳥形山産石灰砕石、表乾密度2.71g/cm3、粗粒率7.03、最大寸法20mm
Claims (6)
- 下記工程(I)及び工程(II)を有するコンクリートの製造方法。
工程(I):プラントにて、水、水硬性粉体、骨材、及びコンクリート混和剤を混練りし、水セメント重量比が40〜55重量%の水硬性組成物(I)を調製する工程
工程(II):コンクリート施工現場において、水硬性組成物(I)に一般式(a1)で表される化合物を含有するレオロジー改質剤とカチオン性ポリマーとを添加して、スランプフロー値が50〜68cmであり、スランプ値が18〜25cmである水硬性組成物(II)を調製する工程であって、前記カチオン性ポリマーが、ポリジメチルアミノエチルメタクリレートジエチル硫酸塩、ポリ(ジアリルジメチルアンモニウム塩)、ポリメタクリロイルオキシエチルジメチルエチルアンモニウム塩、ポリメタクリルアミドプロピルトリメチルアンモニウム塩、メタクリロイルオキシエチルジメチルエチルアンモニウム塩−ビニルピロリドン共重合体、及びメタクリルアミドプロピルトリメチルアンモニウム塩−ビニルピロリドン共重合体から選ばれるカチオン性ポリマーである、工程
(式中、R1aは炭素数10〜26のアルキル基、R2aは炭素数1〜22のアルキル基又はヒドロキシアルキル基、R3a、R4aは、それぞれ、炭素数1〜3のアルキル基又はヒドロキシアルキル基、Yはエチレン基又はプロピレン基、nは0又は1の数、X-はパラトルエンスルホン酸に由来するアニオン基を表す。) - 工程(I)で調製した水硬性組成物(I)をアジテーター車で施工現場に搬送し、工程(II)の少なくとも一部を、アジテータ車内の水硬性組成物(I)へのレオロジー改質剤の添加により行う、請求項1記載のコンクリートの製造方法。
- 工程(II)において、レオロジー改質剤を、該レオロジー改質剤を収容した水溶性包装体として用いる、請求項1又は2記載のコンクリートの製造方法。
- 水溶性包装体が、ポリビニルアルコールを原料としたシートを袋状に成型したものである、請求項3記載のコンクリートの製造方法。
- 工程(II)において、レオロジー改質剤と共に、更に、高性能減水剤及び高性能AE減水剤から選ばれるコンクリート混和剤を水硬性組成物(I)に添加する、請求項1〜4の何れか1項記載のコンクリートの製造方法。
- 工程(II)において、水硬性組成物(I)で用いた水硬性粉体100重量部に対して、一般式(a1)で表される化合物が0.01〜5重量部となるようにレオロジー改質剤を添加し、水硬性組成物(I)で用いた水硬性粉体100重量部に対して、カチオン性ポリマーを0.001〜1.0重量部添加する、請求項1〜5の何れか1項記載のコンクリートの製造方法。
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