WO2009131240A1 - コンクリートまたはモルタル混和剤組成物 - Google Patents
コンクリートまたはモルタル混和剤組成物 Download PDFInfo
- Publication number
- WO2009131240A1 WO2009131240A1 PCT/JP2009/058423 JP2009058423W WO2009131240A1 WO 2009131240 A1 WO2009131240 A1 WO 2009131240A1 JP 2009058423 W JP2009058423 W JP 2009058423W WO 2009131240 A1 WO2009131240 A1 WO 2009131240A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- concrete
- acid
- mortar
- reducing agent
- water
- Prior art date
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 60
- 239000000203 mixture Substances 0.000 title claims abstract description 24
- 239000004570 mortar (masonry) Substances 0.000 title claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002253 acid Substances 0.000 claims abstract description 42
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 22
- 239000002562 thickening agent Substances 0.000 claims abstract description 18
- 150000004676 glycans Chemical class 0.000 claims abstract description 16
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 16
- 239000005017 polysaccharide Substances 0.000 claims abstract description 16
- 239000004568 cement Substances 0.000 claims description 19
- 239000012615 aggregate Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 4
- NAOLWIGVYRIGTP-UHFFFAOYSA-N 1,3,5-trihydroxyanthracene-9,10-dione Chemical compound C1=CC(O)=C2C(=O)C3=CC(O)=CC(O)=C3C(=O)C2=C1 NAOLWIGVYRIGTP-UHFFFAOYSA-N 0.000 claims description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- 240000004584 Tamarindus indica Species 0.000 claims description 2
- 235000004298 Tamarindus indica Nutrition 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- 239000000174 gluconic acid Substances 0.000 claims description 2
- 235000012208 gluconic acid Nutrition 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- 239000000230 xanthan gum Substances 0.000 claims description 2
- 229920001285 xanthan gum Polymers 0.000 claims description 2
- 235000010493 xanthan gum Nutrition 0.000 claims description 2
- 229940082509 xanthan gum Drugs 0.000 claims description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims 3
- 238000005266 casting Methods 0.000 claims 1
- 235000015165 citric acid Nutrition 0.000 claims 1
- 235000006408 oxalic acid Nutrition 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005204 segregation Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 15
- 238000000926 separation method Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 239000011398 Portland cement Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000002950 deficient Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 229920001223 polyethylene glycol Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- ROBFUDYVXSDBQM-UHFFFAOYSA-N hydroxymalonic acid Chemical compound OC(=O)C(O)C(O)=O ROBFUDYVXSDBQM-UHFFFAOYSA-N 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000008719 thickening 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
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-M D-gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O RGHNJXZEOKUKBD-SQOUGZDYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000161 Locust bean gum Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 229920002845 Poly(methacrylic acid) 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
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- -1 accelerator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000890 drug combination Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229940050410 gluconate Drugs 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 229920000591 gum Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- 235000010420 locust bean gum Nutrition 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
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 238000003823 mortar mixing Methods 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000004094 surface-active 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0082—Segregation-preventing agents; Sedimentation-preventing agents
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/34—Flow improvers
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
Definitions
- the present invention provides the concrete necessary for producing high-performance, multifunctional concrete or mortar excellent in high fluidity, fresh retention, early strength, pumpability, material separation resistance, and insolubility in water. Or a mortar admixture composition.
- the concrete admixture composition is used for non-separable concretes that emphasize self-leveling performance, such as underwater concrete and tunnel construction.
- a thickener In order to keep the properties of fresh concrete or fresh mortar well, it is necessary to use a thickener together.
- conventional thickeners such as methyl cellulose thickeners
- sufficient early set strength can not be obtained due to significant setting delay.
- a pseudopolymer-thickener is used in which two surfactants are electrostatically associated (for example, Patent Document 1 and Patent Document 2)
- the viscosity of concrete is high and the pumpability is good.
- polysaccharide thickeners are generally powders, and because they are added manually in the mixer, it is difficult to precisely control the addition of small amounts.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-2777 1
- Patent Document 2 Japanese Patent Application Laid-Open No. 2006-1 1 76 3 9 7
- a concrete or mortar composition comprising cement, aggregate and water.
- the polycarboxylic acid-based concrete water reducing agent refers to a comb polymer containing a carboxyl group having an acid / polyoxyalkylene side chain molar ratio of 3.5 or more.
- polycarboxylic acid refers to unsaturated carboxylic acid polymers, and preferred unsaturated carboxylic acids are acrylic acid, methacrylic acid, maleic acid, fumaric acid and mixtures thereof, which are other than unsaturated carboxylic acid. It also includes polymers copolymerized with the body.
- the term “acid” refers to a carboxylic acid or a salt thereof in the molecular structure, but also to sulfuric acid, phosphoric acid and a salt thereof, which are optionally polymerized into the molecular structure.
- “polyoxyalkylene” is selected from one or a mixture of two or more selected from C 2 to C 4.
- polyoxyalkylene side chains linear polyethylene glycols are preferred, but branched or polypropylene glycol may be present in the polyethylene glycol side chains in blocks or randomly.
- the acid Z polyoxyalkylene side chain molar ratio is less than 3.5, not only it takes time to knead the concrete or mortar, but also the slump retention tends to be deteriorated, and furthermore, the concrete or the mortar is corroded. It is also a cause of causing
- the acid / polyoxyalkylene side chain molar ratio is more preferably 5 or more. However, if the molar ratio of the acid Z polyoxyalkylene side chain is increased, a problem will arise that the setting delaying property becomes remarkable, and in view of the balance, 5 to 7 is the most preferable.
- the molecular weight of the polycarboxylic acid polymer is preferably 5, 000 to 0, 0 0 0, more preferably 1 0, 0 0 0 to 0 0, 0 0 0, which is a large number of commercial general products. It is in the range used.
- the polycarboxylic acid polymer is not limited to one type, and two or more types may be blended. Addition amount is 0.1 weight. / Less than 0 does not give sufficient fluidity and also 1.5 weight. / If it is more than 0 , bad effects such as separation or condensation delay will occur. Therefore, preferably 0.2 to 1% by weight, more preferably 0.3 to 0.8% by weight. Use of / 0 is desirable.
- oxycarboxylic acid-based concrete water reducing agent it is preferable to use one or two or more selected from dalconic acid, darcoheptonic acid, taenic acid, hydroxymalonic acid, tartaric acid, saccharic acid, and salts thereof.
- dalconic acid darcoheptonic acid
- taenic acid hydroxymalonic acid
- tartaric acid saccharic acid
- salts thereof sodium darconate is most preferred.
- Oxycarboxylic acid not only provides slump retention effect but also has the effect of removing rust.
- the amount added is 0.01 weight. If the amount is less than 0 , sufficient slump retention can not be obtained, which may cause corrosion, and it can not be said that the amount added is sufficient. Also 0.2 weight. If it is over 0 , significant setting delay will occur. Therefore, preferably, 0.30 to 0. 15% by weight, more preferably 0. 04 to 0. 1%. Use of / 0 is desirable.
- the polysaccharide is preferably one or more selected from dutan gum, wullan gum, guar gum, tamarind gum, locust bean gum, and xanthan gum. From the viewpoint of delayed setting, rheology, strength development and thickening action, it is preferable to use dutan gum and wheran gum, among which dutan gum is most preferred.
- the polysaccharide may be used as a powder, but it is more preferable to use it after completely dissolving it in water. If the amount added is less than 0.01% by weight to water, sufficient resistance to separation of materials, not being able to be separated in water, and 1% by weight. If it is over 0 , it lacks economic merit. Therefore, it is desirable to use 0.01 to 0.5% by weight, more preferably 0.1 to 0.3% by weight, as the addition amount.
- A Polycarboxylic acid-based concrete water reducing agent
- B Oxycarboxylic acid-based concrete water reducing agent
- C Polysaccharide-based thickening agent.
- Three agents may be added separately. Alternatively, three types can be mixed in advance and used. Also, the order and method of addition are not limited at all.
- the application of the present invention is not limited in any way, as long as it is a cement-based concrete or mortar composition.
- the unit powder amount is 250 to 1000 kgzm 3 (10 to 50% by weight), but in order to have the desired performance in the present invention, the region having a relatively high powder amount, preferably The use of 400 to 800 kgzm 3 (15 to 40% by weight), more preferably 500 to 800 kgzm 3 (20 to 40% by weight) is preferred.
- the cement used here is ordinary Portland cement, early-strength Portland cement, moderate heat Portland cement, sulfate-resistant Portland cement, white Portland cement, etc.
- there are mixed cements such as blast furnace cement, fly ash cement and silica cement.
- one or more of calcium carbonate fine powder, fly ash, blast furnace slag, silica fume and other powders can be used as a substitute for cement.
- the powder used in the present invention refers to cement and a mixture of these powders.
- the unit water content for producing the concrete used in the present invention is in the range of 140 to 240 kg / m 3 (14 to 24% by weight), but in view of durability and workability, it is 150 to 200 kg / m.
- the use in the m 3 (15 to 20% by weight) range is preferred.
- the water powder ratio is in the range of 0.2 to 0.8, but the water powder ratio for producing the mortar is also selected from this range.
- the concrete used in the present invention is a mortar in which coarse aggregate such as gravel is blended. Although the unit coarse aggregate volume is selected from the range of 0.20 to 0.40 m 3 Zm 3 , considering the workability and the quality of hardened concrete, it should be selected in the range of 0.30 to 0. 35 m 3 Zm 3 Is preferred.
- Example 1-8 and Comparative Examples 1-8 The mortar was knead
- the admixture used in the examples was a solution (A + B) as a single solution by mixing (A) a polylactic acid-based concrete water-reducing agent and (B) an oxocarboxylic acid-based concrete water-reducing agent; A solution in which a polysaccharide thickener was previously completely dissolved in water was added simultaneously with the mixing water.
- the admixture composition used is shown in Table 1 and the test results are shown in Table 2. The additive amount of the admixture was shown in terms of solid content.
- Boiling Observe the state of corrosion of mortar after 60 minutes of aging
- Examples 9 to 10 and Comparative Examples 9 to 13 Representative ones were selected from mortar experiments, and effects were confirmed by contrast experiments.
- the admixture composition used is shown in Table 3 and the experimental results are shown in Table 4.
- Boiling Observe the state of corrosion of mortar after 60 minutes of aging
- Fluidity retention ((very good, flow retention 80% or more in 180 minutes)
- Fluidity retention ((very good, flow retention 80% or more in 180 minutes)
- Polycarboxylic acid-based concrete water reducing agent of the present invention oxycarboxylic acid-based concrete High fluidity, fresh retention, early strength, pumpability by adding liquid and polysaccharide thickeners to a concrete or mortar composition consisting of cement, aggregate and water. It is possible to produce concrete or mortar that satisfies all the performances of material separation resistance and non-separation in water.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/988,845 US8168701B2 (en) | 2008-04-24 | 2009-04-22 | Concrete or mortar admixture composition |
JP2010509255A JP5443338B2 (ja) | 2008-04-24 | 2009-04-22 | コンクリートまたはモルタル混和剤組成物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-114055 | 2008-04-24 | ||
JP2008114055 | 2008-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009131240A1 true WO2009131240A1 (ja) | 2009-10-29 |
Family
ID=41216963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/058423 WO2009131240A1 (ja) | 2008-04-24 | 2009-04-22 | コンクリートまたはモルタル混和剤組成物 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8168701B2 (ja) |
JP (1) | JP5443338B2 (ja) |
WO (1) | WO2009131240A1 (ja) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102504126A (zh) * | 2011-11-03 | 2012-06-20 | 山西合盛邦砼建材有限公司 | 一种保坍型聚羧酸盐减水剂及其制备方法 |
CN102558454A (zh) * | 2011-12-05 | 2012-07-11 | 山西合盛邦砼建材有限公司 | 利用生产丙烯醛的尾液制备聚羧酸保坍剂的方法 |
JP2013049590A (ja) * | 2011-08-30 | 2013-03-14 | Kumagai Gumi Co Ltd | セメント系組成物 |
CN104860573A (zh) * | 2015-05-27 | 2015-08-26 | 湖州华仑助剂科技有限公司 | 一种液体水泥助磨剂 |
CN105948604A (zh) * | 2016-04-28 | 2016-09-21 | 吴成继 | 一种地面抹灰的制备方法 |
JP2017114691A (ja) * | 2015-12-21 | 2017-06-29 | 太平洋マテリアル株式会社 | 水中不分離性モルタル組成物 |
CN106946492A (zh) * | 2017-03-01 | 2017-07-14 | 中建商品混凝土有限公司 | 一种水下不分散混凝土外加剂及其制备方法、应用 |
JP2017141119A (ja) * | 2016-02-08 | 2017-08-17 | 太平洋マテリアル株式会社 | 水中不分離性コンクリート組成物およびその硬化体 |
JP2021109798A (ja) * | 2020-01-09 | 2021-08-02 | 株式会社大林組 | 水硬性組成物用添加剤、及び水硬性組成物 |
JP2021109797A (ja) * | 2020-01-09 | 2021-08-02 | 株式会社大林組 | 水硬性組成物用添加剤、及び水硬性組成物 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2810673C (en) | 2010-09-27 | 2018-07-31 | W.R. Grace & Co.-Conn. | Dilution-stable cement grinding additive composition |
JP2017512854A (ja) * | 2014-03-28 | 2017-05-25 | ダウ グローバル テクノロジーズ エルエルシー | コンクリート混和剤用の安定なpce及び多糖類vma組成物、ならびにその使用 |
MX2017005753A (es) * | 2014-11-07 | 2018-01-11 | Sika Tech Ag | Método para producir materiales granulados de composiciones de cemento. |
JP6482861B2 (ja) * | 2014-12-25 | 2019-03-13 | 太平洋マテリアル株式会社 | 水中不分離性モルタル組成物 |
CN105481285A (zh) * | 2015-12-10 | 2016-04-13 | 文登蓝岛建筑工程有限公司 | 一种多功能可用于泵送混凝土抗裂防水剂 |
CN105731873A (zh) * | 2016-03-09 | 2016-07-06 | 文登蓝岛建筑工程有限公司 | 一种多功能可用于泵送混凝土抗裂防水剂 |
CA3040274A1 (en) | 2016-10-14 | 2018-04-19 | Gcp Applied Technologies Inc. | Controllable high flow concrete |
CN107337376B (zh) * | 2017-07-06 | 2020-01-14 | 杭州构建新型材料有限公司 | 一种聚羧酸超缓凝减水剂 |
JP6749712B2 (ja) | 2018-12-04 | 2020-09-02 | 株式会社アイゾーンジャパン | 眼鏡 |
CN110451839B (zh) * | 2019-08-20 | 2021-11-02 | 重庆腾治科技有限公司 | 一种早强型聚羧酸减水剂及其制备方法和应用 |
CN111393066B (zh) * | 2020-01-07 | 2022-04-08 | 中铁二局集团有限公司 | 一种清水混凝土外加剂及其制备方法 |
CN113354353A (zh) * | 2021-05-20 | 2021-09-07 | 福建新华夏建工集团有限公司 | 一种能延长混凝土凝结时间的混凝土制备方法 |
EP4194428A1 (en) * | 2021-12-10 | 2023-06-14 | Construction Research & Technology GmbH | Hydrocolloid particle suspension useful as rheological modifier for cementitious applications, use of a hydrocolloid particle suspension |
CN114656189A (zh) * | 2022-03-31 | 2022-06-24 | 华新水泥股份有限公司 | 双组分早强型湿拌砌筑砂浆外加剂及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0940447A (ja) * | 1995-07-25 | 1997-02-10 | Kao Corp | コンクリート混和剤 |
JP2001019518A (ja) * | 1999-07-02 | 2001-01-23 | Kajima Corp | 高流動コンクリート用混和剤 |
JP2001247347A (ja) * | 2000-03-06 | 2001-09-11 | Kajima Corp | コンクリートの流動安定用混和剤およびこれを用いたコンクリート。 |
JP2008184344A (ja) * | 2007-01-29 | 2008-08-14 | Grace Chemicals Kk | 分離抵抗性セメント混和剤 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5175278A (en) | 1985-06-28 | 1992-12-29 | Merck & Co., Inc. | Heteropolysaccharide S-657 |
EP0830328A1 (en) | 1995-06-07 | 1998-03-25 | The Nutrasweet Company | Stable suspension of hydrocolloids and superplasticizer |
CA2223731A1 (en) | 1995-06-07 | 1996-12-19 | The Nutrasweet Company | Stable suspension of hydrocolloids |
KR100470034B1 (ko) | 1995-12-15 | 2005-07-11 | 파마시아 코포레이션 | 시멘타이트 시스템의 개선된 흐름성 조절방법 |
ES2184072T3 (es) | 1996-11-27 | 2003-04-01 | Kao Corp | Derivado de polisacarido y compuestos hidraulicos. |
JP3936765B2 (ja) | 1996-12-06 | 2007-06-27 | 株式会社エヌエムビー | ポンプ施工に用いるセメント組成物用添加剤 |
EP1015398B1 (en) | 1997-06-25 | 2010-05-19 | W.R. GRACE & CO.-CONN. | Admixture and method for optimizing addition of eo/po superplasticizer to concrete containing smectite clay-containing aggregates |
WO1999044966A1 (en) | 1998-03-05 | 1999-09-10 | Westinghouse Savannah River Company | Admixture for zero-bleed mixtures, grouts, and cements |
CA2264418C (en) | 1998-03-12 | 2002-05-14 | Adeola Florence Ojo | Removal of carbon dioxide from gas streams |
US20040072939A1 (en) | 2002-10-11 | 2004-04-15 | Cornman Charles R. | Viscosity modifying agents and water reducers |
CN1777565B (zh) * | 2004-06-25 | 2010-05-12 | 日本西卡株式会社 | 水泥分散剂及含有该分散剂的混凝土组合物 |
JP2010511585A (ja) * | 2006-12-06 | 2010-04-15 | コンストラクション リサーチ アンド テクノロジー ゲーエムベーハー | セメント組成物用レオロジー改良添加剤 |
-
2009
- 2009-04-22 JP JP2010509255A patent/JP5443338B2/ja active Active
- 2009-04-22 US US12/988,845 patent/US8168701B2/en not_active Expired - Fee Related
- 2009-04-22 WO PCT/JP2009/058423 patent/WO2009131240A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0940447A (ja) * | 1995-07-25 | 1997-02-10 | Kao Corp | コンクリート混和剤 |
JP2001019518A (ja) * | 1999-07-02 | 2001-01-23 | Kajima Corp | 高流動コンクリート用混和剤 |
JP2001247347A (ja) * | 2000-03-06 | 2001-09-11 | Kajima Corp | コンクリートの流動安定用混和剤およびこれを用いたコンクリート。 |
JP2008184344A (ja) * | 2007-01-29 | 2008-08-14 | Grace Chemicals Kk | 分離抵抗性セメント混和剤 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013049590A (ja) * | 2011-08-30 | 2013-03-14 | Kumagai Gumi Co Ltd | セメント系組成物 |
CN102504126A (zh) * | 2011-11-03 | 2012-06-20 | 山西合盛邦砼建材有限公司 | 一种保坍型聚羧酸盐减水剂及其制备方法 |
CN102558454A (zh) * | 2011-12-05 | 2012-07-11 | 山西合盛邦砼建材有限公司 | 利用生产丙烯醛的尾液制备聚羧酸保坍剂的方法 |
CN104860573A (zh) * | 2015-05-27 | 2015-08-26 | 湖州华仑助剂科技有限公司 | 一种液体水泥助磨剂 |
JP2017114691A (ja) * | 2015-12-21 | 2017-06-29 | 太平洋マテリアル株式会社 | 水中不分離性モルタル組成物 |
JP2017141119A (ja) * | 2016-02-08 | 2017-08-17 | 太平洋マテリアル株式会社 | 水中不分離性コンクリート組成物およびその硬化体 |
CN105948604A (zh) * | 2016-04-28 | 2016-09-21 | 吴成继 | 一种地面抹灰的制备方法 |
CN106946492A (zh) * | 2017-03-01 | 2017-07-14 | 中建商品混凝土有限公司 | 一种水下不分散混凝土外加剂及其制备方法、应用 |
JP2021109798A (ja) * | 2020-01-09 | 2021-08-02 | 株式会社大林組 | 水硬性組成物用添加剤、及び水硬性組成物 |
JP2021109797A (ja) * | 2020-01-09 | 2021-08-02 | 株式会社大林組 | 水硬性組成物用添加剤、及び水硬性組成物 |
JP7303525B2 (ja) | 2020-01-09 | 2023-07-05 | 株式会社大林組 | 水硬性組成物用添加剤、及び水硬性組成物 |
JP7393762B2 (ja) | 2020-01-09 | 2023-12-07 | 株式会社大林組 | 水硬性組成物用添加剤、及び水硬性組成物 |
Also Published As
Publication number | Publication date |
---|---|
US8168701B2 (en) | 2012-05-01 |
JP5443338B2 (ja) | 2014-03-19 |
JPWO2009131240A1 (ja) | 2011-08-25 |
US20110046270A1 (en) | 2011-02-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009131240A1 (ja) | コンクリートまたはモルタル混和剤組成物 | |
JP5051579B2 (ja) | 高流動超早強性混和剤および高流動超早強性コンクリート | |
JP6192208B2 (ja) | 無収縮aeコンクリートの調製方法及び無収縮aeコンクリート | |
JP2009155151A (ja) | セメント組成物用減水剤、及びセメント組成物 | |
JP6891041B2 (ja) | 早強性超高強度グラウト組成物 | |
JP2003238222A (ja) | 水硬性組成物用添加剤 | |
JP2008189526A (ja) | グラウト用混和材及びグラウト用のセメント組成物 | |
JP2011201126A (ja) | 未硬化セメント組成物の製造方法 | |
JP2011136863A (ja) | 超高強度グラウト組成物 | |
JP5832599B2 (ja) | セメント組成物 | |
JP4732122B2 (ja) | 吹付け材料及び吹付け工法 | |
JP2011132039A (ja) | 水中不分離性水硬性組成物用流動化剤 | |
JP2009023878A (ja) | 断面修復用コンクリート及び当該コンクリートを用いたコンクリート構造物の断面修復工法 | |
JP3806420B2 (ja) | シラスを用いた低強度モルタル充填材 | |
JP2019065638A (ja) | コンクリート、トンネル覆工体およびコンクリートの配合設計方法 | |
JP7055338B2 (ja) | 水硬性組成物用添加剤、および水硬性組成物 | |
CN113165976B (zh) | 水硬性组合物用添加剂及水硬性组合物 | |
JP5587007B2 (ja) | 耐硫酸性セメント組成物、耐硫酸性モルタル組成物及び耐硫酸性コンクリート組成物 | |
JP2017114692A (ja) | 水中不分離性モルタル組成物 | |
JP7018036B2 (ja) | 水硬性組成物用混和剤組成物 | |
JP2012240874A (ja) | セメント組成物 | |
JP7574091B2 (ja) | 高温環境対応型高強度水中不分離性モルタル組成物及びそれを用いたモルタル | |
JP2020033207A (ja) | 水中不分離性モルタル組成物及びそのモルタル | |
JP7158306B2 (ja) | セメント複合材 | |
JP2010159195A (ja) | 吹付け材料及び吹付け工法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09734194 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010509255 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12988845 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09734194 Country of ref document: EP Kind code of ref document: A1 |