CN1019100B - Concrete dewater agent of pumping over type - Google Patents
Concrete dewater agent of pumping over typeInfo
- Publication number
- CN1019100B CN1019100B CN 89100147 CN89100147A CN1019100B CN 1019100 B CN1019100 B CN 1019100B CN 89100147 CN89100147 CN 89100147 CN 89100147 A CN89100147 A CN 89100147A CN 1019100 B CN1019100 B CN 1019100B
- Authority
- CN
- China
- Prior art keywords
- concrete
- agent
- dewater
- cement
- pumping
- 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.)
- Expired
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 16
- 239000004568 cement Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 9
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 5
- 229920005547 polycyclic aromatic hydrocarbon Polymers 0.000 claims description 5
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 abstract description 9
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 abstract description 5
- 239000002893 slag Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000011398 Portland cement Substances 0.000 abstract 3
- 238000013329 compounding Methods 0.000 abstract 2
- 239000011402 Portland pozzolan cement Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 8
- 239000011575 calcium Substances 0.000 description 8
- 229910052791 calcium Inorganic materials 0.000 description 8
- 229920005610 lignin Polymers 0.000 description 8
- 230000000740 bleeding effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 239000012628 flowing agent Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance 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
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present relates to a pumping dewater agent which is suitable for concrete. The dewater agent is formed by compounding a calcium lignin sulfonate dewater agent and a high-efficiency polycyclic aromatic hydrocarbon sulphonate dewater agent, has favorable adaptability to cement, and can obviously improve the pumping capability of the concrete. The present invention is especially suitable for ordinary pumping concrete prepared from ordinary portland cement, portland cement, slag portland cement and pozzolan cement, is more suitable for commercial concrete and bulk mass pouring concrete, and has no rust action to steel bars; the material expenses of 1 to 3 yuan can be save per cubic meter of concrete by using the compounding agent.
Description
The present invention relates to a kind of concrete dewater agent of pumping over type.
Abroad the method for improving concrete pumpability with chemical admixture generally is successively to mix certain water reducer, pumping agent (U.S.) or flowing agent (Japan) in concrete mix.Domestic general employing calcium lignin sulphonate or high efficiency water reducing agent.But owing to separately can produce rapid hardening to the homemade cement of making adjustable solidification agent with fluorgypsum, and early age strength of concrete is increased slow down with calcium lignin sulphonate.Therefore, many engineerings can not be used, though and use high efficiency water reducing agent can solve early strength and cement suitability problem separately, cost an arm and a leg (3500 yuan/more than the t), volume big (bigger three times) than calcium lignin sulphonate; And mix in the concrete, its slump-loss is big, and (15min＞4cm) is so the pump concrete engineering can't be used.
The objective of the invention is to provide a kind of pumping water reducer that cement is had (containing the cement that fluorgypsum is made adjustable solidification agent) adaptability.Its moderate cost has certain amount of air entrainment to concrete, makes its workability good, and bleeding quantity is little, and slump-loss is little, can obviously improve concrete pumpability.
Concrete dewater agent of pumping over type of the present invention is the mixture of calcium lignosulfonate air-entraining water-reducing agent and polynuclear aromatic hydrocarbon sulfonate high-efficient water.Its weight percent is: calcium lignosulfonate air-entraining water-reducing agent is 30～50, and polynuclear aromatic hydrocarbon sulfonate high-efficient water is 70～50.Because the ratio of calcium lignin sulphonate is too high, can produce rapid hardening to the cement of making adjustable solidification agent with fluorgypsum; Cross lowly, then need to increase the consumption of polycyclic aromatic hydrocarbon sulfonate, make cost higher.Therefore, optimum weight ratio is 1: 1.In above-mentioned mixture, calcium lignin sulphonate has the effect of bleed, diminishing and slow setting to cement and concrete.Can reduce the slump-loss of pump concrete, the little air of introducing can reduce the friction resistance of pipeline; Polycyclic aromatic hydrocarbon sulfonate has higher diminishing, enhancement to cement and concrete.It is lower to overcome the calcium lignin sulphonate early strength, and the shortcoming that water-reducing effect is not high makes the pump concrete intensity enhancing.
The concrete advantage of mixing pumping water reducer of the present invention can be summarized as follows:
1. compare with the concrete of not mixing admixture (volume be cement weight 3 ‰)
(1) good to cement adaptability.Promptly, mix this agent and can not produce rapid hardening make the cement of adjustable solidification agent with fluorgypsum.
(2) can reduce the concrete water amount more than 10%, obviously improve workability, reduce concrete water bleeding amount 20%.
(3) (20min≤4cm) is better than Japanese flowing agent index (15min≤4min) can to reduce the loss of concrete slump.Can reduce concrete transfer pressure 5%～10%; Improve the operational throughput about 10% of pump.
(4) can improve concrete crushing strength 10%(3 days, 7 days, 28 days).
2. compare with the concrete of singly mixing calcium lignin sulphonate
(1) good to cement adaptability.Can be used for doing in the cement of adjustable solidification agent with fluorgypsum.
(2) early strength is higher.When particularly in concrete, mixing a certain amount of flyash.
(3) water-reducing rate has improved 2～4%.The about cement amount 3～5% of more piece.
(4) improve more obvious to concrete pumpability.Improve operational throughput 2～4%, reduce output pressure 3～5%.
3. compare with the concrete of singly mixing polycyclic aromatic hydrocarbon sulfonate
(1) concrete pumpability is good.Bleeding is few, and slump-loss is little.
(2) price is low, 1500 yuan of reductions per ton.Every m
3Concrete is saved 3～5 yuan.This pumping water reducer is specially adapted in the concrete of normal silicate, silicate, slag portland, trass cement preparation and the pump concrete more suitable to commerical ready-mixed concrete and large volume casting concrete.To the effect of reinforcing bar non-corroding, can be used in the Steel Concrete.Every m
3But concrete takes 1～3 yuan with this recombiner economical with materials.
Embodiment 1:
Get the 1Kg calcium lignin sulphonate and the 1Kg polycyclic aromatic hydrocarbon sulfonate mixes, get mixture a small amount of (2g), be made into 1% solution.Surveying its surface tension is 50 ± 5 * 10
-3N/m; Flowing degree of net paste of cement be 100 ± 10mm(volume be cement weight 3%).This mixture is placed in the plastics bag, prevents to make moist, in order to stand-by.
Embodiment 2:
To C20 level pump concrete, when cement consumption be this routine usefulness of 300Kg(be to mix fluorgypsum to do Wusong of adjustable solidification agent and produce No. 425 slag cement, other No. 425 slag cement also can), concrete mix is C: G: S=1: 3.63: 2.83, W/C=0.56.Get this recombiner of 0.9Kg and be dissolved in the mixing water, after other starting material stir, make pump concrete.Surveying its air content is 1.5～2.5%, and the slump is 12 ± 2cm, slump-loss 15min≤4cm, and the bleeding rate ratio is 80%, and compare with normal concrete concrete time of coagulation, and presetting period and final setting time be+60min～-90min.Concrete pumping pressure is 50～65MPa, and rate of pumping is 1.2～1.5m
3/ min.Ultimate compression strength 〉=20MPa of 28 days.
Claims (2)
1, a kind of concrete dewater agent of pumping over type particularly relates to the pumping water reducer that cement is had (containing the cement that fluorgypsum is made adjustable solidification agent) adaptability.It is characterized in that being composited by calcium lignosulfonate air-entraining water-reducing agent and polynuclear aromatic hydrocarbon sulfonate high-efficient water, the weight percent of composition is: calcium lignosulfonate air-entraining water-reducing agent is 30～50, and polynuclear aromatic hydrocarbon sulfonate high-efficient water is 70～50.
2, according to the described concrete dewater agent of pumping over type of claim 1, the optimum weight ratio that it is characterized in that calcium lignosulfonate air-entraining water-reducing agent and polynuclear aromatic hydrocarbon sulfonate high-efficient water is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100147 CN1019100B (en) | 1989-01-14 | 1989-01-14 | Concrete dewater agent of pumping over type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100147 CN1019100B (en) | 1989-01-14 | 1989-01-14 | Concrete dewater agent of pumping over type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1034193A CN1034193A (en) | 1989-07-26 |
| CN1019100B true CN1019100B (en) | 1992-11-18 |
Family
ID=4853715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89100147 Expired CN1019100B (en) | 1989-01-14 | 1989-01-14 | Concrete dewater agent of pumping over type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019100B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079382C (en) * | 1999-04-14 | 2002-02-20 | 济南华迪有限责任公司 | Composite additive for concrete |
| CN101875872B (en) * | 2009-11-04 | 2012-12-12 | 中建商品混凝土有限公司 | Lubricating agent used for pipeline of concrete pump and application thereof |
-
1989
- 1989-01-14 CN CN 89100147 patent/CN1019100B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034193A (en) | 1989-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Khayat | Effects of antiwashout admixtures on fresh concrete properties | |
| CN101508536B (en) | modified aliphatic water reducing agent and preparation method | |
| CN103482899B (en) | Channel grouting agent and manufacturing method thereof | |
| EP0077129A1 (en) | Additive for hydraulic cement mixes | |
| CN107652404B (en) | A kind of room temperature synthesis polyester polyether polycarboxylate water-reducer and preparation method thereof | |
| CN1559964A (en) | Slump Loss Controlled High Performance Concrete Pumping Agent | |
| CN107032723A (en) | A kind of fluorgypsum self-leveling material and preparation method thereof | |
| CN113105149A (en) | Concrete glue reducing agent and preparation method and application method thereof | |
| CN109665745A (en) | A kind of multifunctionality polycarboxylate water-reducer and preparation method thereof | |
| CN1019100B (en) | Concrete dewater agent of pumping over type | |
| CN114656600A (en) | Preparation method of high-solid-content early-strength polycarboxylate superplasticizer | |
| Stuart et al. | Compressive strength studies on Portland cement mortars containing fly ash and superplasticizer | |
| CN112521099A (en) | Production process of quick-setting concrete | |
| RU2003119137A (en) | COMPOSITIONS CONTAINING CEMENT AND THE METHOD OF THEIR APPLICATION | |
| CN111943557A (en) | Composite dry-mixed mortar additive and preparation method thereof | |
| CN100348528C (en) | Anticrack waterproof agent for cement-base material | |
| CN110436954A (en) | A kind of preparation method of autoclave aerated concrete building block | |
| CN113527591B (en) | Enhanced sulfur-supplementing slow-release polycarboxylate superplasticizer and preparation method thereof | |
| CN115196932A (en) | A kind of low carbon inorganic cementitious grouting filling material and preparation method and application | |
| CN114426407B (en) | Concrete admixture suitable for fine aggregate as tunnel slag and preparation method thereof | |
| CN106632885A (en) | Short-haul-distance high-flowability low-slump-retaining polycarboxylate water reducer master batch | |
| CN1562860A (en) | Steady inflated steel tube concrete and construction method | |
| Chang et al. | Straw pulp waste liquor as a water-reducing admixture | |
| CN104098289B (en) | A kind of collapse protection type concrete pump-feed agent of admixture CLT acid waste liquid | |
| CN109851273A (en) | A kind of early-strength polycarboxylate composite water reducing agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |