KR102569805B1 - 시멘트 첨가제 및 이를 포함하는 시멘트 조성물 - Google Patents
시멘트 첨가제 및 이를 포함하는 시멘트 조성물 Download PDFInfo
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- KR102569805B1 KR102569805B1 KR1020160180047A KR20160180047A KR102569805B1 KR 102569805 B1 KR102569805 B1 KR 102569805B1 KR 1020160180047 A KR1020160180047 A KR 1020160180047A KR 20160180047 A KR20160180047 A KR 20160180047A KR 102569805 B1 KR102569805 B1 KR 102569805B1
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- meth
- acrylate
- glycol
- weight
- cement
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- 239000004568 cement Substances 0.000 title claims abstract description 76
- 239000000203 mixture Substances 0.000 title claims abstract description 57
- 239000000654 additive Substances 0.000 title claims abstract description 44
- 230000000996 additive effect Effects 0.000 title claims abstract description 33
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 130
- 239000000178 monomer Substances 0.000 claims description 77
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 65
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 51
- -1 polybutylene Polymers 0.000 claims description 32
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 26
- 229920001748 polybutylene Polymers 0.000 claims description 20
- 125000002947 alkylene group Chemical group 0.000 claims description 15
- 229920001451 polypropylene glycol Polymers 0.000 claims description 15
- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical compound C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 claims description 14
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 12
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- GCYHRYNSUGLLMA-UHFFFAOYSA-N 2-prop-2-enoxyethanol Chemical compound OCCOCC=C GCYHRYNSUGLLMA-UHFFFAOYSA-N 0.000 claims description 6
- 150000003863 ammonium salts Chemical class 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 4
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 4
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- BQKZEKVKJUIRGH-UHFFFAOYSA-N 2-prop-2-enoxypropan-1-ol Chemical compound OCC(C)OCC=C BQKZEKVKJUIRGH-UHFFFAOYSA-N 0.000 claims description 3
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 3
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 11
- 239000004570 mortar (masonry) Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000004567 concrete Substances 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 8
- 239000003505 polymerization initiator Substances 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012986 chain transfer agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 150000003573 thiols Chemical class 0.000 description 3
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- PMNLUUOXGOOLSP-UHFFFAOYSA-N 2-mercaptopropanoic acid Chemical compound CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000005702 oxyalkylene group Chemical group 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 1
- CMSVOQYCGCZLPU-UHFFFAOYSA-N 2-(sulfanylmethyl)decanoic acid Chemical compound CCCCCCCCC(CS)C(O)=O CMSVOQYCGCZLPU-UHFFFAOYSA-N 0.000 description 1
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- YJBPLFKRZJRTFK-UHFFFAOYSA-N CCCCCCCCCCCC(OOC(CCCCCCCCCCC)=O)=O.CC(C)C1=CC=CC=C1.OO Chemical compound CCCCCCCCCCCC(OOC(CCCCCCCCCCC)=O)=O.CC(C)C1=CC=CC=C1.OO YJBPLFKRZJRTFK-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000007774 longterm Effects 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- MADOXCFISYCULS-UHFFFAOYSA-N octyl 2-sulfanylacetate Chemical compound CCCCCCCCOC(=O)CS MADOXCFISYCULS-UHFFFAOYSA-N 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- KEAYESYHFKHZAL-OUBTZVSYSA-N sodium-24 Chemical group [24Na] KEAYESYHFKHZAL-OUBTZVSYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229940035024 thioglycerol Drugs 0.000 description 1
- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical compound OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 238000004260 weight control Methods 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
- C08F216/12—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an ether radical
- C08F216/14—Monomers containing only one unsaturated aliphatic radical
- C08F216/1416—Monomers containing oxygen in addition to the ether oxygen, e.g. allyl glycidyl ether
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/20—Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
- C08F220/285—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing a polyether chain in the alcohol moiety
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
구분 | 중량평균 분자량 | 단량체(중량부) | |||
A | B | C | D(혼합 단량체 대비 함량)* | ||
실시예 1 | 39,200 | 336 | 36 | 20 | 8(2 중량부) |
실시예 2 | 41,000 | 332 | 36 | 20 | 12(3 중량부) |
실시예 3 | 37,500 | 328 | 36 | 20 | 16(4 중량부) |
비교예 1 | 40,300 | 344 | 36 | 20 | 0(0 중량부) |
비교예 2 | 33,000 | 320 | 36 | 20 | 24(6 중량부) |
중량평균분자량은 제조된 첨가제에 대해서 GPC법으로 측정한 중량평균분자량을 의미함. A, B, C, D의 단량체는 실시예 1에서 사용한 단량체임. D의 괄호 함량은 A + B + C + D의 혼합 단량체 100중량부를 기준으로 환산된 함량임. |
구분 | 모르타르 유동값(mm) | 모르타르 유동값 변화량(mm) |
콘크리트 슬럼프(mm) | 콘크리트 슬럼프 변화량(mm) |
||
초기 | 40분 후 | 초기 | 40분 후 | |||
실시예 1 | 170 | 162 | 8 | 190 | 182 | 12 |
실시예 2 | 175 | 170 | 5 | 200 | 190 | 10 |
실시예 3 | 165 | 150 | 5 | 180 | 164 | 14 |
비교예 1 | 170 | 140 | 30 | 190 | 155 | 35 |
비교예 2 | 150 | 120 | 30 | 160 | 130 | 30 |
Claims (8)
- 단량체 혼합물 100 중량부를 기준으로 (알콕시)폴리알킬렌글리콜 모노(메타)아크릴레이트계 단량체 (A) 70 내지 90 중량부;
(메타)아크릴산계 단량체 (B) 5 내지 20 중량부;
(메타)아크릴산 에스테르계 단량체 (C) 1 내지 10 중량부; 및
알킬렌글리콜알릴에테르계 단량체(D) 1 내지 5 중량부를 포함하되, 다른 추가 단량체를 포함하지 않는 단량체 혼합물을 공중합시킨,
시멘트 첨가제.
- 삭제
- 제1항에 있어서, 상기 (알콕시)폴리알킬렌글리콜 모노(메타)아크릴레이트계 단량체 (A)는, 메톡시폴리에틸렌글리콜모노(메타)아크릴레이트, 메톡시폴리프로필렌글리콜모노(메타)아크릴레이트, 메톡시폴리부틸렌글리콜모노(메타)아크릴레이트, 메톡시폴리에틸렌글리콜폴리프로필렌글리콜모노(메타)아크릴레이트, 메톡시폴리에틸렌글리콜폴리부틸렌글리콜모노(메타)아크릴레이트, 메톡시폴리프로필렌글리콜폴리부틸렌글리콜모노(메타)아크릴레이트, 메톡시폴리에틸렌글리콜폴리프로필렌글리콜폴리부틸렌글리콜모노(메타)아크릴레이트, 에톡시폴리에틸렌글리콜모노(메타)아크릴레이트, 에톡시폴리프로필렌글리콜모노(메타)아크릴레이트, 에톡시폴리부틸렌글리콜모노(메타)아크릴레이트, 에톡시폴리에틸렌글리콜폴리프로필렌글리콜모노(메타)아크릴레이트, 에톡시폴리에틸렌글리콜폴리부틸렌글리콜모노(메타)아크릴레이트, 에톡시폴리프로필렌글리콜폴리부틸렌글리콜모노(메타)아크릴레이트, 및 에톡시폴리에틸렌글리콜폴리프로필렌글리콜폴리부틸렌글리콜모노(메타)아크릴레이트로 이루어지는 군으로부터 선택되는 1종 이상인, 시멘트 첨가제.
- 제1항에 있어서, 상기 (메타)아크릴산계 단량체 (B)는 아크릴산, 메타크릴산, 및 이들 산의 1 가 금속염, 2가 금속염, 암모늄염 및 유기 아민염으로 이루어진 군에서 선택되는 1종 이상인, 시멘트 첨가제.
- 제1항에 있어서, 상기 (메타)아크릴산 에스테르계 단량체 (C)는 2-히드록시에틸메타크릴레이트, 히드록시프로필메타크릴레이트, 히드록시에틸아크릴레이트, 히드록시프로필아크릴레이트 및 이들의 1가 금속염, 2가 금속염, 암모늄염 및 유기 아민염으로 이루어진 군에서 선택되는 1종 이상인, 시멘트 첨가제.
- 제1항에 있어서, 상기 알킬렌글리콜알릴에테르계 단량체(D)는 에틸렌글리콜알릴에테르 또는 프로필렌글리콜알릴에테르인, 시멘트 첨가제.
- 제1항에 있어서, 중량 평균 분자량이 35,000 내지 50,000인, 시멘트 첨가제.
- 시멘트 100중량부에 대하여, 제1항의 시멘트 첨가제 0.1 내지 5 중량부를 포함하는, 시멘트 조성물.
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