JPH03218956A - Highly fluidized mortar - Google Patents
Highly fluidized mortarInfo
- Publication number
- JPH03218956A JPH03218956A JP2011678A JP1167890A JPH03218956A JP H03218956 A JPH03218956 A JP H03218956A JP 2011678 A JP2011678 A JP 2011678A JP 1167890 A JP1167890 A JP 1167890A JP H03218956 A JPH03218956 A JP H03218956A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- meth
- pts
- water
- 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
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004568 cement Substances 0.000 claims abstract description 14
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- 239000010440 gypsum Substances 0.000 claims abstract description 10
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 10
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 238000004898 kneading Methods 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 5
- 150000004683 dihydrates Chemical class 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 14
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 6
- 239000000178 monomer Substances 0.000 abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 7
- 229920001515 polyalkylene glycol Polymers 0.000 abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 3
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 239000012615 aggregate Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 12
- 230000007423 decrease Effects 0.000 description 8
- 239000004576 sand Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 6
- -1 polybutylene Polymers 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229920001983 poloxamer Polymers 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 229920000609 methyl cellulose Polymers 0.000 description 4
- 239000001923 methylcellulose Substances 0.000 description 4
- 235000010981 methylcellulose Nutrition 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 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
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007798 antifreeze agent Substances 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000007774 longterm 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
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- IKUJAIDSWVXUGG-UHFFFAOYSA-N prop-1-enyl acetate Chemical compound CC=COC(C)=O IKUJAIDSWVXUGG-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 150000004684 trihydrates Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/06—Acrylates
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
-
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、自由に流動して容易に水平面を形成するセ
ルフレベリング性を有し、乾燥収縮が小さく、更に、長
時間流動性を保持できる高流動化モルタルに関する。[Detailed Description of the Invention] [Industrial Application Field] This invention has self-leveling properties that flow freely and easily form a horizontal surface, has low drying shrinkage, and can maintain fluidity for a long time. Regarding highly fluidized mortar.
従来、石こう系及びセメント系セルフレベリング材が開
発され、構造物の床下地材等に広範に使用されている。BACKGROUND ART Gypsum-based and cement-based self-leveling materials have been developed and are widely used as subfloor materials for structures.
しかし、石こう系セルフレベリング材は耐水性が乏しく
、表面硬度が低い等の欠点があり、セメント系セルフレ
ベリング材は、流動性が劣り、ひびわれし易い等の欠点
があり、更に、両者とも短時間に流動性が急速に低下す
るという欠点がある。However, gypsum-based self-leveling materials have drawbacks such as poor water resistance and low surface hardness, while cement-based self-leveling materials have drawbacks such as poor fluidity and easy cracking. The disadvantage is that the fluidity decreases rapidly.
本発明者らは、この様な従来のセルフレベリング材の欠
点を解決すべく研究を行い、特開昭５７−９２， ５５
８号、特開昭６１−１４６， ７４２号、特開昭６２−
２５６， ７５２号等において、高炉水砕スラグ粉を含
有するセルフレベリング材を提案し、流動性、ひびわれ
抵抗性及び流動性保持時間の面で改良を行ってきたが、
実用上要求される種々の性能を考慮すると必ずしも充分
なものでなかった。The present inventors conducted research to solve the drawbacks of such conventional self-leveling materials, and published JP-A-57-92, 55.
No. 8, JP-A-61-146, 742, JP-A-62-
Nos. 256 and 752 proposed a self-leveling material containing granulated blast furnace slag powder, and improvements were made in terms of fluidity, cracking resistance, and fluidity retention time.
This was not necessarily sufficient considering the various performances required in practice.
そこで、本発明者らは、さらに研究を重ねた結果、高炉
水砕スラグ粉、セメント及び石こうからなる基材が特定
の組成範囲にあるものについて、減水材として特定の（
メタ）アクリル酸系コポリマーを用いた場合、用いた骨
材の粒子径とモルタルの流動性とが極めて密接な関係を
有することを見出し、本発明を完成した。Therefore, as a result of further research, the present inventors found that a specific (
The present invention was completed based on the discovery that when a meth)acrylic acid copolymer is used, there is a very close relationship between the particle size of the aggregate used and the fluidity of the mortar.
従って、本発明の目的は、従来のセルフレベリング材を
凌駕する優れた性能を有する高流動化モ′ルタルを提供
することにある。Therefore, an object of the present invention is to provide a highly fluidized mortar that has superior performance over conventional self-leveling materials.
すなわち、本発明は、２５〜６０重量％の高炉水砕スラ
グ粉、２５〜６０重量％のセメント及びｌＯ重量％を超
え１５重量％以下の無水石こう及び／又は三水石こうと
からなる基材１００重量部と、減水剤としての（メタ）
アクリル酸系コポリマー０．１〜０．５重量部と、最大
粒子径３Ｍ以下であっＯ粒子径０．１５ｍｍ以下のもの
の比率が７重量％以下である骨材８０〜１５０重量部と
、水３０〜５０重量部と、その他必要に応じて添加され
る消泡剤、保水剤等の添加剤とを混練してなる高流動化
モルタルである。That is, the present invention provides a base material 100 comprising 25 to 60% by weight of granulated blast furnace slag powder, 25 to 60% by weight of cement, and more than 10% by weight and less than 15% by weight of anhydrous gypsum and/or trihydrate gypsum. Parts by weight and (meth) as a water reducing agent
0.1 to 0.5 parts by weight of an acrylic acid copolymer, 80 to 150 parts by weight of aggregate having a maximum particle diameter of 3M or less and a proportion of O particle diameters of 0.15 mm or less is 7% by weight or less, and 30 parts by weight of water. This is a highly fluidized mortar made by kneading up to 50 parts by weight and other additives such as an antifoaming agent and a water retention agent added as necessary.
基材の高炉水砕スラグ粉含有率は２５〜６０重量％、好
ましくは３５〜４５重量％である。６０重量％を超える
とモルタルの強度発現に時間がかかり、次の作業工程に
支障をきたし、２５重量％より少ないと、流動性を確保
するために、多量の水で混練することが必要となり、他
の物性に悪影響を及ぼし、また、流動性保持時間が低下
するので好ましくない。The content of granulated blast furnace slag powder in the base material is 25 to 60% by weight, preferably 35 to 45% by weight. If it exceeds 60% by weight, it will take time for the mortar to develop strength, which will interfere with the next work process, and if it is less than 25% by weight, it will be necessary to mix with a large amount of water to ensure fluidity. This is not preferred because it adversely affects other physical properties and reduces fluidity retention time.
基材に含有される石こうは、無水石こう及び二水石こう
からなる群から選ばれた少なくとも一種の石こうであっ
て、その含有率は１０重量％を超え１５重量％以下であ
る。ｌＯ重量％以下ではモルタルの乾燥収縮が大きくな
るとともに流動性保持時間が短くなり、１５重量％を超
えると異常膨張しやすくなるので好ましくない。なお、
石こうとして半水石こうを用いると、遅延剤等の添加剤
を併用しても、流動性保持時間が長くならないため可使
時間の確保が困難であり、特に、広い面積にわたって施
工する場合、打ち継ぎができやすく平滑な施工面を得ら
れないので好ましくない。The gypsum contained in the base material is at least one type of gypsum selected from the group consisting of anhydrous gypsum and dihydrate gypsum, and its content is more than 10% by weight and not more than 15% by weight. If it is less than 10% by weight, drying shrinkage of the mortar will increase and the fluidity retention time will be shortened, and if it exceeds 15% by weight, it will be prone to abnormal expansion, which is not preferable. In addition,
When hemihydrate gypsum is used as plaster, it is difficult to secure a pot life because the fluidity retention time is not extended even if additives such as retarders are used. This is undesirable because it tends to cause scratches and makes it impossible to obtain a smooth construction surface.
セメントとしては、ボルトランドセメント、混合セメン
トなどが使用でき、その含有率は基材の２５〜６０重量
％、好ましくは４０〜５０重量％である。３０重量％未
満では強度発現性が遅れ、また、６０重量％を超えると
、流動性が悪くなるとともに流動性保持時間が短くなる
ので好ましくない。As the cement, Borland cement, mixed cement, etc. can be used, and the content thereof is 25 to 60% by weight, preferably 40 to 50% by weight of the base material. If it is less than 30% by weight, strength development will be delayed, and if it exceeds 60% by weight, fluidity will deteriorate and fluidity retention time will be shortened, which is not preferable.
減水剤としては、下記一般式
Ｒ
［−ＣＨ２−Ｃ−］−
Ｃ−０−（−Ｒ２０−）ｐ −Ｒ３
０
（但し、Ｒ１は水素又はメチル基を示し、Ｒ２は炭素数
２〜４個のアルキレン基を示し、Ｒ３は水素又は炭素数
１〜５個のアルキレン基を示し、Ｐは１〜１００の整数
を表す）で表されるポリアルキレンク゛リコールモノ（
メタ）アクリル酸エステル系モノマーから誘導された構
成単位（イ）や、下記一般式
［−ＣＨ２−Ｃ−］
ｃｏｏｘ
（但し、Ｒ４は水素又はメチル基を示し、Ｘは水素、一
価金属、二価金属、アンモニウム基若しくは有機アミン
を示す）で表される（メタ）アクリル酸系モノマーから
誘導された構成単位（口）を有する（メタ）アクリル酸
系コポリマーがある。なお、これらのモノマーと共重合
可能なモノマーから誘導された構成単位（ハ）を少量含
有することができる。各構成単位の割合は、（イ）がｌ
Ｏ〜９５重量％、（口）が９０〜５重量％、及び（ハ）
がθ〜５０重量％であり、より好ましくは（イ）が５０
〜８０重量％、（口）が２０〜５０重量％である。As a water reducing agent, use the following general formula R [-CH2-C-]-C-0-(-R20-)p-R30 (wherein, R1 represents hydrogen or a methyl group, and R2 has 2 to 4 carbon atoms. represents an alkylene group, R3 represents hydrogen or an alkylene group having 1 to 5 carbon atoms, and P represents an integer of 1 to 100).
The structural unit (a) derived from a meth)acrylic acid ester monomer, or the following general formula [-CH2-C-] coox (wherein, R4 represents hydrogen or a methyl group, and X represents hydrogen, a monovalent metal, a divalent metal, There is a (meth)acrylic acid-based copolymer having a structural unit (meth) derived from a (meth)acrylic acid-based monomer (representing a valent metal, an ammonium group, or an organic amine). Incidentally, a small amount of a structural unit (c) derived from a monomer copolymerizable with these monomers can be contained. The proportion of each constituent unit is (a)
O ~ 95% by weight, (mouth) 90 ~ 5% by weight, and (c)
is θ~50% by weight, more preferably (a) is 50% by weight.
-80% by weight, (mouth) is 20-50% by weight.
構成単位（イ）を誘導するためのポリアルキレングリコ
ールモノ（メタ）アクリル酸エステル系モノマーとして
は、ポリエチレングリコールモノ（メタ）アクリレート
、ポリプロピレングリコールモノ（メタ）アクリレート
、ポリブチレングリコールモノ （メタ）アクリレート
、メトキシポリエチレングリコールモノ （メタ）アク
リレート、メトキシポリプロピレングリコール（メタ）
アクリレート、メトキシポリブチレングリコールモノ（
メタ）アクリレート、エトキシポリエチレングリコール
モノ （メタ）アクリレート、エトキシポリブチレンク
リコールモノ（メタ）アクリレート等を挙げることがで
き、これらはその１種のみを使用できるほか、２種以上
を併用使用することもできる。Examples of polyalkylene glycol mono(meth)acrylic acid ester monomers for deriving structural unit (a) include polyethylene glycol mono(meth)acrylate, polypropylene glycol mono(meth)acrylate, polybutylene glycol mono(meth)acrylate, Methoxypolyethylene glycol mono (meth)acrylate, methoxypolypropylene glycol (meth)
Acrylate, methoxypolybutylene glycol mono(
Examples include meth)acrylate, ethoxypolyethylene glycol mono(meth)acrylate, and ethoxypolybutylene glycol mono(meth)acrylate, which can be used alone or in combination of two or more. can.
構成単位（口）を誘導するための（メタ）アクリル酸系
モノマーとしては、アクリル酸、メタクリル酸並びにそ
れらの一価金属塩、二価金属塩、アンモニウム塩及び有
機アミン塩を挙げることができ、これらはその１種のみ
を使用できるほか、２種以上を併用使用することもでき
る。Examples of the (meth)acrylic acid monomer for inducing the structural unit (mouth) include acrylic acid, methacrylic acid, and their monovalent metal salts, divalent metal salts, ammonium salts, and organic amine salts, These can be used alone or in combination of two or more.
構成単位（イ）を誘導するためのポリアルキレングリコ
ールモノ（メタ）アクリル酸エステル系モノマー及び構
成単位（口）を誘導するための（メタ）アクリル酸系モ
ノマーと共重合可能なモノマーとしては、炭素数１〜２
０個の脂肪族アルコールと（メタ）アクリル酸とのエス
テル、（メタ）アクリルアミド、マレイン酸、フマル酸
、あるいはこれらの酸と炭素数１〜２０個の脂肪族アル
コール又は炭素数２〜４個のグリコール若しくはこれら
のグリコールの付加モル数２〜１００のポリアルキレン
グリコールとのモノエステルあるいはジエステル、酢酸
ビニル、酢酸プロペニル等の酢酸アルケニルエステル、
スチレン、ｐ−メチルスチレン、スチレンスルホン酸等
の芳香族ビニル、塩化ビニル等を挙げることができ、こ
れらはその１種のみを使用できるほか、２種以上を併用
使用することもできる。Monomers that can be copolymerized with the polyalkylene glycol mono(meth)acrylic acid ester monomer for deriving the structural unit (a) and the (meth)acrylic acid monomer for deriving the structural unit (2) include carbon. number 1~2
Esters of 0 aliphatic alcohols and (meth)acrylic acid, (meth)acrylamide, maleic acid, fumaric acid, or these acids and aliphatic alcohols having 1 to 20 carbon atoms or esters of 2 to 4 carbon atoms. Glycols or monoesters or diesters of these glycols with polyalkylene glycols having an additional mole number of 2 to 100, alkenyl acetate esters such as vinyl acetate and propenyl acetate,
Examples include aromatic vinyls such as styrene, p-methylstyrene, and styrene sulfonic acid, vinyl chloride, etc., and these can be used alone, or two or more types can be used in combination.
この減水剤の含有率は、基材１００重量部に対して０．
１〜０．５重量部である。０．１重量部より少ないとモ
ルタルの流動性が急激に悪くなり、また、０．５重量部
を超えると、モルタル強度の発現が阻害されるため好ま
しくない。なお、該減水剤に替えて他の減水剤を用いた
場合、モルタルの流動性保持時間が低下するため好まし
くない。The content of this water reducing agent is 0.000 parts by weight per 100 parts by weight of the base material.
It is 1 to 0.5 parts by weight. If it is less than 0.1 part by weight, the fluidity of the mortar will deteriorate rapidly, and if it exceeds 0.5 part by weight, the development of mortar strength will be inhibited, which is not preferable. Note that it is not preferable to use another water reducing agent in place of the water reducing agent because the fluidity retention time of the mortar is reduced.
骨材としては、川砂、海砂、硅砂、石灰石、フライアッ
シュ、シリカ質材等があり、本発明では最大粒子径が３
ｆｉｌｍ以下、好ましくは２．５ｍｍ以下のものを用
い、そのうちの粒子径０．１５ｍｍ以下のものの比率が
７重量％以下、好ましくは５重量％以下となるようにす
る。また、更に好ましくは、１．５ｍｍ篩残分が１０重
量％以下、特には５重量％以下の骨材がよい。最大粒子
径が３ ｍｍを超えるものを用いると、仕上がり肌が悪
くなり、また、粒子径が０．１５ｍｍ以下のものの比率
が７重量％を超えるとモルタルの流動性が急激に低下し
、粘性が高くなるため好ましくない。骨材の含有率は、
基材１００重量部に対して、８０〜１５０重量部、好ま
しくは８５〜１００重量部である。骨材の含有率が８０
重量部より少ないと、モルタルのひびわれ抵抗性が低下
し、また、１５０重量部を超えるとモルタルの流動性が
急激に低下するので好ましくない。Examples of aggregate include river sand, sea sand, silica sand, limestone, fly ash, siliceous material, etc. In the present invention, the maximum particle size is 3.
Particles with a particle size of 0.15 mm or less are used, and the proportion of particles with a particle size of 0.15 mm or less is 7% by weight or less, preferably 5% by weight or less. More preferably, the aggregate has a 1.5 mm sieve residue of 10% by weight or less, particularly 5% by weight or less. If the maximum particle size exceeds 3 mm, the finished surface will be poor, and if the proportion of particles with a particle size of 0.15 mm or less exceeds 7% by weight, the fluidity of the mortar will decrease rapidly and the viscosity will decrease. This is not desirable as it becomes expensive. The content of aggregate is
The amount is 80 to 150 parts by weight, preferably 85 to 100 parts by weight, based on 100 parts by weight of the base material. Aggregate content is 80
If it is less than 150 parts by weight, the cracking resistance of the mortar will decrease, and if it exceeds 150 parts by weight, the fluidity of the mortar will decrease rapidly, which is not preferable.
混練用の水としては、上水を用いることができ、その使
用量は、基材１００重量部に対して３０〜５０重量部で
ある。３０重量部より少ないとモルタルの流動性が低下
し、また５０重量部を超えると、モルタルの強度発現性
の低下、乾燥収縮の増大等の物性が低下するとともに、
材料分離が発生するため好まし《ない。As the water for kneading, tap water can be used, and the amount used is 30 to 50 parts by weight per 100 parts by weight of the base material. If it is less than 30 parts by weight, the fluidity of the mortar will decrease, and if it exceeds 50 parts by weight, physical properties such as a decrease in strength development and an increase in drying shrinkage of the mortar will decrease.
This is not preferred because material separation occurs.
本発明のモルタルは、消泡剤、保水剤等の通常の添加剤
を配合してもよい。但し、通常、モルタルのひびわれ抵
抗性改善のために添加する膨張材については、本発明の
モルタルに添加すると、セメント成分の硬化収縮が増大
するにもかかわらず長期の乾燥収縮低減作用が得られな
いため、ひびわれ抵抗性改善効果が認められず逆に異常
膨張の危険性が増大するため使用しない。消泡剤として
は、プルロニック系化合物、ポリオキシエチレンアルキ
ルフェノールエーテル等が用いられ、その含有率は、基
材１００重量部に対して０．００５〜０．２重量部が好
ましい。保水剤としては、セルロース系のもの、ビニル
系のもの、アクリル系のもの等が用いられ、その含有率
は基材１００重量部に対して０．０５〜０．２重量部か
好ましい。The mortar of the present invention may contain conventional additives such as antifoaming agents and water retention agents. However, when adding an expanding agent to the mortar of the present invention, which is normally added to improve the cracking resistance of mortar, a long-term drying shrinkage reducing effect cannot be obtained, although the curing shrinkage of the cement component increases. Therefore, it is not used because it has no effect on improving cracking resistance and on the contrary increases the risk of abnormal expansion. As the antifoaming agent, pluronic compounds, polyoxyethylene alkylphenol ethers, etc. are used, and the content thereof is preferably 0.005 to 0.2 parts by weight per 100 parts by weight of the base material. As the water retention agent, cellulose type, vinyl type, acrylic type, etc. are used, and the content thereof is preferably 0.05 to 0.2 parts by weight per 100 parts by weight of the base material.
その他、硬化調整剤、粘度調整剤、凍結防止剤等も適宜
添加することができる。In addition, curing modifiers, viscosity modifiers, antifreeze agents, etc. can also be added as appropriate.
以下、実施例に基づいて本発明を具体的に説明する。 The present invention will be specifically described below based on Examples.
実施例１
普通ボルトラントセメント、高炉水砕スラグ粉、無水石
こう、２．０ｍｍ篩い残分なし、１．５ｍｍ篩い残分３
，５重量％、０．１５ｍｍ篩い通過分０．８重量％の硅
砂及び（メタ）アクリル酸系コポリマーを配合してなる
モルタルについて、各原料の配合量とモルタル性能を第
１表に示す。ただし、各モルタルは、基材１００重量部
に対してプルロニック系消泡剤を０．２重量部、メチル
セルロース系保水剤を０．１５重量部の割合で含有する
。Example 1 Ordinary Boltland cement, granulated blast furnace slag powder, anhydrous gypsum, 2.0 mm sieve no residue, 1.5 mm sieve residue 3
, 5% by weight, 0.8% by weight of silica sand that passed through a 0.15 mm sieve, and (meth)acrylic acid copolymer, the amounts of each raw material and mortar performance are shown in Table 1. However, each mortar contains 0.2 parts by weight of a pluronic antifoaming agent and 0.15 parts by weight of a methylcellulose water retention agent based on 100 parts by weight of the base material.
また、比較例で用いた膨張剤は、ＣＳＡ系膨張剤である
。Moreover, the swelling agent used in the comparative example is a CSA-based swelling agent.
なお、フロー値は住宅都市整備公団規格により測定した
。圧縮強度は、ＪＩＳ−Ｒ−５２０１に準じて、温度２
０℃の条件で気乾養生した供試体について、乾燥収縮は
、ＪＩＳ−Ａ−１１２９に準じて、温度２０℃、湿度６
５％の条件で気乾養生した供試体について測定した。異
常膨張については、ＪＩＳ−Ａ−１１２９に準じて、封
かん養生した供試体について膨張串を測定し、膨張率が
＋０．０５％以上の場合、異常膨張有とした。ひびわれ
発生材令は、外径１２ｃｍ、長さ３０ｃｍ、厚さ３ ｍ
ｍの鋼管の外周に、試験するモルタルで厚さ２ ｍｍの
ライニングを形成し、温度２０℃、湿度６５％の条件で
気乾養生して得られる供試体を目視で観察して判断した
。The flow value was measured according to the Housing and Urban Development Corporation standards. Compressive strength is measured at temperature 2 according to JIS-R-5201.
For specimens air-dried at 0°C, drying shrinkage was measured at a temperature of 20°C and a humidity of 6, according to JIS-A-1129.
Measurements were made on specimens that had been air-dried under conditions of 5%. Regarding abnormal expansion, the expansion skewer was measured for the sealed and cured specimen according to JIS-A-1129, and when the expansion rate was +0.05% or more, it was determined that there was abnormal expansion. The cracked material has an outer diameter of 12 cm, a length of 30 cm, and a thickness of 3 m.
A lining with a thickness of 2 mm was formed around the outer periphery of a steel pipe of 2 mm using the mortar to be tested, and the specimen was air-dried and cured at a temperature of 20° C. and a humidity of 65%. The results were visually observed and judged.
実施例２
普通ボルトランドセメント４７重量部、高炉水砕スラグ
粉４０重量部、無水石こう１３重量部、２．０ｍｍ篩い
残分なし、１．５ｍｍ篩い残分は３，５重量％の硅砂９
０重量部、（メタ）アクリル酸系コポリマー０．２５重
量部、水３９重量部、プルロニツク系消泡剤０．２重量
部及びメチルセルロース系保水剤０．１５重量部を混練
してなるモルタルについて、用いた珪砂の０．１５１Ｉ
Ｉｍ篩い通過分の比率と混線直後のフロー値とを第２表
に示す。Example 2 47 parts by weight of ordinary boltland cement, 40 parts by weight of granulated blast furnace slag powder, 13 parts by weight of anhydrous gypsum, no residue on 2.0 mm sieve, 3.5% by weight of silica sand on 1.5 mm sieve 9
0 parts by weight, (meth)acrylic acid copolymer 0.25 parts by weight, water 39 parts by weight, Pluronic antifoaming agent 0.2 parts by weight, and methylcellulose water retention agent 0.15 parts by weight. 0.151I of the silica sand used
Table 2 shows the ratio of the amount passing through the Im sieve and the flow value immediately after crosstalk.
第 ２ 表
実施例３
普通ボルトランドセメント４７重量部、高炉水砕スラグ
粉４０部、無水石こう１３重量部、２，０ ｍｍ篩い残
分なし、１．５ｗｕｎ篩い残分３．５重量％、０．１５
Ｉｎｍ篩い通過分０．８重量％の硅砂９０重量部、各種
減水剤０．２５〜０．９重量部、水３９重量部、プルロ
ニック系消泡剤０．２重量部及びメチルセルロース系保
水剤０．１５重量部を混練してなるモルタルについて、
減水剤の種類、添加量及びフロー値を第３表に示す。Table 2 Example 3 47 parts by weight of ordinary boltland cement, 40 parts of granulated blast furnace slag powder, 13 parts by weight of anhydrous gypsum, no residue after 2.0 mm sieve, 3.5% by weight after 1.5 wun sieve, 0 .15
90 parts by weight of silica sand with 0.8% by weight passing through the Inm sieve, 0.25 to 0.9 parts by weight of various water reducing agents, 39 parts by weight of water, 0.2 parts by weight of Pluronic antifoaming agent, and 0.0 parts by weight of methyl cellulose water retaining agent. Regarding mortar made by kneading 15 parts by weight,
Table 3 shows the type, amount added, and flow value of the water reducing agent.
実施例４
普通ボルトランドセメント４７重量部、高炉水砕スラグ
粉４０重量部、無水石こう若しくは無水石こう１３重量
部、２．０ｍｍ篩い残分なし、１．５ ｍｍ篩い残分３
．５重量％、０．１５ｍｍ篩い通過分０．８重量％の硅
砂９０重量部、（メタ）アクリル酸系コポリマー０．２
５重量部、水３９重量部、プルロニック系消泡剤０．２
重量部及びメチルセルロース系保水剤０．１５重量部を
混練してなるモルタルについて、用いた石こうの種類と
フロー値とを第４表に示す。Example 4 47 parts by weight of ordinary Bolland cement, 40 parts by weight of granulated blast furnace slag powder, 13 parts by weight of anhydrous gypsum or anhydrous gypsum, no residue after 2.0 mm sieve, 3 residues after 1.5 mm sieve
．． 5% by weight, 0.8% by weight of silica sand passing through a 0.15 mm sieve, 90 parts by weight, (meth)acrylic acid copolymer 0.2
5 parts by weight, 39 parts by weight of water, 0.2 parts by weight of Pluronic antifoaming agent
Table 4 shows the types of gypsum used and the flow values for the mortar prepared by kneading parts by weight and 0.15 parts by weight of the methyl cellulose water retention agent.
第 ４ 表
〔発明の効果〕
本発明の高流動化モルタルは、従来から知られているセ
ルフレベリング材と比較して下記のような利点がある。Table 4 [Effects of the Invention] The highly fluidized mortar of the present invention has the following advantages compared to conventionally known self-leveling materials.
■長時間にわたって高流動性が保持できるので、可使時
間が顕著に長い。■High fluidity can be maintained for a long period of time, so pot life is significantly longer.
■乾燥収縮が非常に少ないので、ひびゎれ抵抗性が顕著
に高い。■Drying shrinkage is extremely low, so cracking resistance is extremely high.
■少ない水量で高い流動性を得られるので、硬化後の強
度が大きい。■High fluidity can be achieved with a small amount of water, resulting in high strength after curing.
Claims (1)
０重量％のセメント及び１０重量％を超え１５重量％以
下の無水石こう及び／又は二水石こうとからなる基材１
００重量部と、減水剤としての（メタ）アクリル酸系コ
ポリマー０．１〜０．５重量部と、最大粒子径３ｍｍ以
下であって粒子径０．１５ｍｍ以下のものの比率が７重
量％以下である骨材８０〜１５０重量部と、水３０〜５
０重量部と、その他必要に応じて添加される消泡剤、保
水剤等の添加剤とを混練してなることを特徴とする高流
動化モルタル。(1) 25-60% by weight of granulated blast furnace slag powder, 25-6
Base material 1 consisting of 0% by weight of cement and more than 10% by weight and less than 15% by weight of anhydrous gypsum and/or dihydrate gypsum
00 parts by weight, 0.1 to 0.5 parts by weight of the (meth)acrylic acid copolymer as a water reducing agent, and the ratio of particles with a maximum particle size of 3 mm or less and a particle size of 0.15 mm or less is 7% by weight or less. 80-150 parts by weight of certain aggregate and 30-5 parts by weight of water
1. A highly fluidized mortar, characterized in that it is made by kneading 0 parts by weight and other additives such as an antifoaming agent and a water retention agent, which are added as necessary.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167890A JPH06102567B2 (en) | 1990-01-23 | 1990-01-23 | Highly fluidized mortar |
| KR1019910000721A KR0153247B1 (en) | 1990-01-23 | 1991-01-17 | Process for the preparation of mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167890A JPH06102567B2 (en) | 1990-01-23 | 1990-01-23 | Highly fluidized mortar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03218956A true JPH03218956A (en) | 1991-09-26 |
| JPH06102567B2 JPH06102567B2 (en) | 1994-12-14 |
Family
ID=11784656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1167890A Expired - Lifetime JPH06102567B2 (en) | 1990-01-23 | 1990-01-23 | Highly fluidized mortar |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH06102567B2 (en) |
| KR (1) | KR0153247B1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995011204A1 (en) * | 1993-10-21 | 1995-04-27 | Chichibu Onoda Cement Corporation | Self-leveling water-base composition |
| JPH11189451A (en) * | 1997-12-26 | 1999-07-13 | Taiheiyo Cement Corp | High-strength cement-based composition |
| US6076997A (en) * | 1997-12-03 | 2000-06-20 | Mbt Holding Ag | Deep mix soil stabilization method |
| US6310143B1 (en) | 1998-12-16 | 2001-10-30 | Mbt Holding Ag | Derivatized polycarboxylate dispersants |
| KR20030020020A (en) * | 2001-08-29 | 2003-03-08 | 주식회사 케미콘 | A composite of adhesives for a hot-floored plate of the polymer cement system |
| JP2008230890A (en) * | 2007-03-20 | 2008-10-02 | Taiheiyo Cement Corp | Grout or mortar material |
| US9017520B2 (en) | 2010-03-23 | 2015-04-28 | Basf Se | Paper coating or binding formulations and methods of making and using same |
| US9102848B2 (en) | 2011-02-28 | 2015-08-11 | Basf Se | Environmentally friendly, polymer dispersion-based coating formulations and methods of preparing and using same |
| CN106478037A (en) * | 2016-10-09 | 2017-03-08 | 常州市鼎日环保科技有限公司 | A kind of preparation method for mixing modified blast furnace slag gypsum-based self-leveling material |
| CN114230300A (en) * | 2022-01-07 | 2022-03-25 | 四川齐能新型材料有限公司 | Multifunctional two-component gypsum-based self-leveling mortar and mortar construction mode |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100398074B1 (en) * | 1995-12-30 | 2003-12-18 | 금강종합건설 주식회사 | Cement mortar composition having self-levelling property for heating hot-floor in building |
| KR20010060411A (en) * | 1999-12-21 | 2001-07-07 | 신현준 | Gypsum board using blast furnace slag |
| KR100474976B1 (en) * | 2001-10-23 | 2005-03-08 | 한일시멘트 (주) | The method for manufacturing of composition for height-intensity concrete |
| KR100474964B1 (en) * | 2001-10-23 | 2005-03-08 | 한일시멘트 (주) | The composition for height-intensity compound of cement |
| KR20010104764A (en) * | 2001-10-23 | 2001-11-28 | 정환진 | The method for manufacturing and composition of section reinforcement dry concrete |
| KR100839491B1 (en) * | 2008-03-28 | 2008-06-19 | 주식회사 에스알건설 | Mortar composite for repairing concrete structure in water and repairing method of concrete structure using the mortar composite |
| KR101709120B1 (en) | 2015-11-17 | 2017-02-22 | 한일시멘트 (주) | .-Hemihydrate Based Floor Screed Mortar Composition |
| CN112745092A (en) * | 2021-01-08 | 2021-05-04 | 江苏立浩建材科技有限公司 | Nano plasticized self-compacting anti-cracking concrete |
-
1990
- 1990-01-23 JP JP1167890A patent/JPH06102567B2/en not_active Expired - Lifetime
-
1991
- 1991-01-17 KR KR1019910000721A patent/KR0153247B1/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995011204A1 (en) * | 1993-10-21 | 1995-04-27 | Chichibu Onoda Cement Corporation | Self-leveling water-base composition |
| US6076997A (en) * | 1997-12-03 | 2000-06-20 | Mbt Holding Ag | Deep mix soil stabilization method |
| JPH11189451A (en) * | 1997-12-26 | 1999-07-13 | Taiheiyo Cement Corp | High-strength cement-based composition |
| US6310143B1 (en) | 1998-12-16 | 2001-10-30 | Mbt Holding Ag | Derivatized polycarboxylate dispersants |
| KR20030020020A (en) * | 2001-08-29 | 2003-03-08 | 주식회사 케미콘 | A composite of adhesives for a hot-floored plate of the polymer cement system |
| JP2008230890A (en) * | 2007-03-20 | 2008-10-02 | Taiheiyo Cement Corp | Grout or mortar material |
| US9017520B2 (en) | 2010-03-23 | 2015-04-28 | Basf Se | Paper coating or binding formulations and methods of making and using same |
| US9102848B2 (en) | 2011-02-28 | 2015-08-11 | Basf Se | Environmentally friendly, polymer dispersion-based coating formulations and methods of preparing and using same |
| CN106478037A (en) * | 2016-10-09 | 2017-03-08 | 常州市鼎日环保科技有限公司 | A kind of preparation method for mixing modified blast furnace slag gypsum-based self-leveling material |
| CN114230300A (en) * | 2022-01-07 | 2022-03-25 | 四川齐能新型材料有限公司 | Multifunctional two-component gypsum-based self-leveling mortar and mortar construction mode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06102567B2 (en) | 1994-12-14 |
| KR910014322A (en) | 1991-08-31 |
| KR0153247B1 (en) | 1998-11-16 |
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