JP6713224B2 - コンクリート構造体用充填材のための分散液、コンクリート構造体用充填材の製造方法、及びコンクリート構造体の製造方法 - Google Patents
コンクリート構造体用充填材のための分散液、コンクリート構造体用充填材の製造方法、及びコンクリート構造体の製造方法 Download PDFInfo
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- JP6713224B2 JP6713224B2 JP2017186604A JP2017186604A JP6713224B2 JP 6713224 B2 JP6713224 B2 JP 6713224B2 JP 2017186604 A JP2017186604 A JP 2017186604A JP 2017186604 A JP2017186604 A JP 2017186604A JP 6713224 B2 JP6713224 B2 JP 6713224B2
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- 235000010323 ascorbic acid Nutrition 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
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- 238000010276 construction Methods 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
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- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
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- 239000000853 adhesive Substances 0.000 description 1
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- 150000001298 alcohols Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 description 1
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- SZPUDSQPVUIVKC-UHFFFAOYSA-N ethoxymethyl prop-2-enoate Chemical compound CCOCOC(=O)C=C SZPUDSQPVUIVKC-UHFFFAOYSA-N 0.000 description 1
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- SINFYWWJOCXYFD-UHFFFAOYSA-N methoxymethyl prop-2-enoate Chemical compound COCOC(=O)C=C SINFYWWJOCXYFD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- WFKDPJRCBCBQNT-UHFFFAOYSA-N n,2-dimethylprop-2-enamide Chemical compound CNC(=O)C(C)=C WFKDPJRCBCBQNT-UHFFFAOYSA-N 0.000 description 1
- QRWZCJXEAOZAAW-UHFFFAOYSA-N n,n,2-trimethylprop-2-enamide Chemical compound CN(C)C(=O)C(C)=C QRWZCJXEAOZAAW-UHFFFAOYSA-N 0.000 description 1
- DFENKTCEEGOWLB-UHFFFAOYSA-N n,n-bis(methylamino)-2-methylidenepentanamide Chemical compound CCCC(=C)C(=O)N(NC)NC DFENKTCEEGOWLB-UHFFFAOYSA-N 0.000 description 1
- JMCVCHBBHPFWBF-UHFFFAOYSA-N n,n-diethyl-2-methylprop-2-enamide Chemical compound CCN(CC)C(=O)C(C)=C JMCVCHBBHPFWBF-UHFFFAOYSA-N 0.000 description 1
- VNLHOYZHPQDOMS-UHFFFAOYSA-N n-[3-(diethylamino)propyl]-2-methylprop-2-enamide Chemical compound CCN(CC)CCCNC(=O)C(C)=C VNLHOYZHPQDOMS-UHFFFAOYSA-N 0.000 description 1
- FIBUWQFQYAAXHD-UHFFFAOYSA-N n-cyclopropyl-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NC1CC1 FIBUWQFQYAAXHD-UHFFFAOYSA-N 0.000 description 1
- LCXIFAOALNZGDO-UHFFFAOYSA-N n-cyclopropylprop-2-enamide Chemical compound C=CC(=O)NC1CC1 LCXIFAOALNZGDO-UHFFFAOYSA-N 0.000 description 1
- ZIWDVJPPVMGJGR-UHFFFAOYSA-N n-ethyl-2-methylprop-2-enamide Chemical compound CCNC(=O)C(C)=C ZIWDVJPPVMGJGR-UHFFFAOYSA-N 0.000 description 1
- SWPMNMYLORDLJE-UHFFFAOYSA-N n-ethylprop-2-enamide Chemical compound CCNC(=O)C=C SWPMNMYLORDLJE-UHFFFAOYSA-N 0.000 description 1
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- 230000035699 permeability Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
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- 239000000565 sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- 235000019187 sodium-L-ascorbate Nutrition 0.000 description 1
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- 239000002562 thickening agent Substances 0.000 description 1
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/483—Polyacrylates
-
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Description
純水100g中に、N,N−ジメチルアクリルアミド(以下、「DMAA」と略記する。)20g、水膨潤性合成ヘクトライト(ビックケミー・ジャパン株式会社製、「ラポナイトRD」)4.8gを混合攪拌して分散液(a1−1)を調製した。また純水10g中に、ペルオキソ二硫酸ナトリウム(以下、「NPS」と略記する。)0.5gを混合攪拌してNPS水溶液(a2−1)を調製した。さらに純水10g中に、N,N,N’,N’−テトラメチルエチレンジアミン(以下、「TEMED」と略記する。)80μLを混合撹拌し、均一なTEMED水溶液を調製した。
次いで、分散液(a1−1)とNPS水溶液(a2−1)の質量比[(a1−1)/(a2−1)]が10となるように混合し、分散液(a−1)を得た。
モルタル平板(50mm×50mm×10mm)2枚を室温にて、あらかじめ24時間水に浸漬しておき、取り出した後に表面に付着した水滴を軽く拭き取った。この2枚のモルタル板を50mm×50mmの面同士が平行になるように並べて、その間に12mm幅のポリプロピレン製スペーサーを2ヶ挿入した。2ヶのスペーサーの距離を12mm開け、ヒドロゲルを充填する空間を作製して、モルタル板とスペーサー全体をアルミテープで固定した。次いで、上記で調製した分散液(a−1)110gに上記で調製したTEMED水溶液を全量混合し、十分に撹拌した後、2枚のモルタル間に充填して24時間静置したところ、強靱なヒドロゲルが形成され、コンクリート構造体用充填材、及びモルタル−ゲル−モルタル構造体を得た。
この構造体を用いてJIS A 1439:2010建築用シーリング剤の試験方法に準じて、引張試験を実施し、下記の基準により湿潤面付着性を評価した。
◎:0.4MPa以上
○:0.2MPa以上0.4MPa未満
×:0.2MPa未満又はゲルが脆いため測定不能
分散液(a−1)110gにTEMED水溶液を全量混合し、十分に撹拌した後、直径100mm、厚さ100mmの円柱の中心部直径26mm部分が中空になっているコンクリート円柱の中空部分に充填して24時間静置することにより、コンクリート構造体用充填材、及びゲル−コンクリート構造体を得た。
この構造体を用いて、JIS A 1404:2015建築用セメント透水試験に準じた方法で、円柱の天面全体に水で加圧し、ゲルが破損することなく、円柱の底面に水の浸入が起こらない水圧を測定し、下記の基準により評価した。
◎:0.4MPa以上
○:0.2MPa以上0.4MPa未満
×:0.2MPa未満又はゲルが脆いため測定不能
水溶性有機モノマーを、DMAAの代わりにアクリロイルモルフォリン(以下、「ACMO」と略記する。)を用いたこと以外は実施例1と同様にして、分散液(a1−2)を調製した後、コンクリート構造体用充填材、及びモルタル−ゲル−モルタル構造体を作製し、湿潤面付着性及び耐水圧性を評価した。
水膨潤性粘土鉱物を、ラポナイトRDの代わりに、ホスホン酸変性合成ヘクトライト(ビックケミー・ジャパン株式会社製、「ラポナイトRDS」)を用いたこと以外は実施例1と同様にして、分散液(a1−3)を調製した後、コンクリート構造体用充填材、及びモルタル−ゲル−モルタル構造体を作製し、湿潤面付着性及び耐水圧性を評価した。
水溶性有機モノマーを、DMAAの代わりにACMOとし、水膨潤性粘土鉱物を、ラポナイトRDの代わりに、ホスホン酸変性合成ヘクトライト(ビックケミー・ジャパン株式会社製、「ラポナイトRDS」)を用いたこと以外は実施例1と同様にして、分散液(a1−4)を調製した後、コンクリート構造体用充填材、及びモルタル−ゲル−モルタル構造体を作製し、湿潤面付着性及び耐水圧性を評価した。
純水100g中に、DMAA20g、NPS0.5gを混合攪拌し、均一溶液を調製した。さらに均一溶液にTEMED80μLを追加して混合撹拌し、室温で静置したところ、ポリN,N−ジメチルアクリルアミド水溶液が得られた。この水溶液に、ラポナイトRD4.8gを混合撹拌したところ、白色に懸濁した粘稠な液体(r−1)が得られた。
この粘稠な液体(r−1)を実施例1と同様に、2枚のモルタル間に充填し、24時間後に観察したところ、ゼリー状の非常に弱いゲルが形成されていたが、2枚のモルタルを手で持ち、わずかに延伸したところ、直ちにゲルは破壊してしまい、ゲルとコンクリートの付着性を測定することは不可能であった。
また、粘稠な液体(r−1)を実施例1と同様に、中空のコンクリート円柱に充填して24時間静置したところ、中空部分にゼリー状の非常に弱いゲルが形成されていた。このゲルをガラス棒で軽く押すと容易にゲルが破壊し、得られたゲルの耐水圧性を測定することは不可能であった。
Claims (4)
- 水溶性有機モノマーの重合体及び水膨潤性粘土鉱物により形成された三次元網目構造を有する有機無機複合ヒドロゲル(A)からなるコンクリート構造体用充填材を形成するために使用される分散液であって、
(メタ)アクリルアミド基を有するモノマー、(メタ)アクリロイルオキシ基を有するモノマー及びヒドロキシル基を有するアクリルモノマーのうちの単独又は2種以上を組み合わせてなる水溶性有機モノマー、水膨潤性粘土鉱物、重合開始剤、及び水を必須原料とし、形成されるコンクリート構造体用充填材の耐水圧が0.2MPa以上であることを特徴とするコンクリート構造体用充填材のための分散液。 - 水溶性有機モノマーの重合体及び水膨潤性粘土鉱物により形成された三次元網目構造を有する有機無機複合ヒドロゲル(A)からなるコンクリート構造体用充填材を形成するために使用される分散液であって、
(メタ)アクリルアミド基を有するモノマー、(メタ)アクリロイルオキシ基を有するモノマー及びヒドロキシル基を有するアクリルモノマーのうちの単独又は2種以上を組み合わせてなる水溶性有機モノマー、水膨潤性粘土鉱物、重合開始剤、及び水を必須原料とし、形成されるコンクリート構造体用充填材の破断強度が0.2MPa以上であることを特徴とするコンクリート構造体用充填材のための分散液。 - 請求項1又は2記載の分散液をコンクリート構造体の間隙又は表面上に注入し、間隙内又は表面上で前記有機無機複合ヒドロゲル(A)を生成させることを特徴とするコンクリート構造体用充填材の製造方法。
- 請求項1又は2記載の分散液をコンクリート構造体の間隙又は表面上に注入し、間隙内又は表面上で前記有機無機複合ヒドロゲル(A)を生成させて形成されたコンクリート構造体用充填材により、コンクリート構造物の間隙が充填され又は表面が密着されたコンクリート構造体を得ることを特徴とするコンクリート構造体の製造方法。
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CN201880062837.5A CN111133056A (zh) | 2017-09-27 | 2018-09-18 | 混凝土结构体用填充材料、混凝土结构体和它们的制造方法 |
PCT/JP2018/034367 WO2019065348A1 (ja) | 2017-09-27 | 2018-09-18 | コンクリート構造体用充填材、コンクリート構造体、及びそれらの製造方法 |
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