CN105967544A - {0><}0{>Retarding and water reducing agent and preparation method thereof - Google Patents
{0><}0{>Retarding and water reducing agent and preparation method thereof Download PDFInfo
- Publication number
- CN105967544A CN105967544A CN201610306868.3A CN201610306868A CN105967544A CN 105967544 A CN105967544 A CN 105967544A CN 201610306868 A CN201610306868 A CN 201610306868A CN 105967544 A CN105967544 A CN 105967544A
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- CN
- China
- Prior art keywords
- water
- sodium
- reducing agent
- water reducing
- agent
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
-
- 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
- C04B2103/302—Water reducers
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
{0><}0{>The invention discloses a retarding and water reducing agent and a preparation method thereof. The retarding and water reducing agent comprises the following ingredients in percentage by weight: 6-14% of a water reducing agent, 1-4% of a slump retaining agent, 1-3.5% of an organic retarder, 1-2% of an inorganic retarder, 0.1-0.4% of an air entraining agent and the balance of water, <0}{0><}0{>wherein the organic retarder is one or a mixture of more of sodium gluconate, sodium citrate, sodium tartrate or white sugar; the inorganic retarder is one or a mixture of more of borax, sodium tripolyphosphate, sodium pyrophosphate or sodium polyphosphate. <0}{0><}0{>Compared with the prior art, the retarding and water reducing agent has the following beneficial effects that the water reducing rate is relatively high and is at least 25%; the air content of concrete is relatively low, the peaceability is good, phenomena of separation, water seeping and back slurry seeping do not exist, the pumping construction is favorable, and the construction requirements are completely met.
Description
Technical field
The present invention relates to technical field of concrete additives, particularly to a kind of retardation water reducing agent and preparation method thereof.
Background technology
Poly carboxylic acid series water reducer is the third generation water reducer that combination property is the most excellent, begins in developed country's production applications such as Japan, Germany, the U.S. from the 80's ends of 20th century.It has the plurality of advantages such as water-reducing rate is high, concrete slump gradual loss is little, volume is low, big to concrete strength contribution, the feature of environmental protection is good, from high-speed railway to city Concrete Mixing Station, domestic many application enterprises start to select polycarboxylate water-reducer as the requisite BSA of concrete.Cement water reducing agent, as a kind of new material, not only can improve the level of Building technology, improves the performance of concrete, it is also possible to save substantial amounts of cement and manpower and materials, have higher value, the fact that this has been well recognized as.
But, owing to the raw material needed for producing high performance concrete has strict requirements, sand, the clay content of stone or the fineness of flyash and the amount of making a fire all have strict requirements, so the high efficiency water reducing agent for construction high performance concrete requires the strictest, the bleed composition of the either water-reducing rate of water reducer, or water reducer all can have influence on the quality of high performance concrete.
High efficiency water reducing agent performance in the market is single, only has diminishing function, and the cement adaptability for different manufacturers is different, it is necessary to could change its adaptability through other material compounding, and be difficult to control to.
Summary of the invention
The present invention is directed to defect present in prior art, a kind of retardation water reducing agent of existing offer and preparation method thereof, this water reducer water-reducing rate is high, and loss of slump is little, with the strong adaptability of cement, also has deferred action..
For achieving the above object, the present invention uses following technical proposals:
A kind of retardation water reducing agent, following component including by mass percentage: the water reducer of 6-14%, the slump retaining agent of 1-4%, the organic retarder of 1-3.5%, the mineral-type retarder of 1-2%, the air entraining agent of 0.1-0.4%, surplus is water, wherein, described organic retarder is one or more mixture in sodium gluconate, sodium citrate, sodium tartrate or white sugar, and described mineral-type retarder is one or more mixture in Borax, sodium tripolyphosphate, sodium pyrophosphate or sodium polyphosphate.
Preferably, described water reducer is the mixing of any one or any two or more in modified polyether class polycarboxylate water-reducer, esters polycarboxylate water-reducer, maleic anhydride class polycarboxylate water-reducer, is any proportioning when any two is mixed above.
Preferably, described slump retaining agent is polycarboxylic acid slump retaining agent.
Preferably, described air entraining agent is one or more mixture in Colophonium, rosin polymer, dodecyl sodium sulfate, triterpene saponin.
The preparation method of described retardation water reducing agent is as follows:
Comprise the following steps: put into water reducer, slump retaining agent, organic retarder, mineral-type retarder, air entraining agent and tap water the most successively, stir and make it be dissolved into homogeneous solution in about 20 minutes, obtain retardation water reducing agent.
The present invention compared with prior art, has the advantages that water-reducing rate is higher, has been above more than 25%, and concrete 's air-containing is lower, and workability is more preferable, without isolation, bleeding, secretes black wash phenomenon, and pumping construction is good, fully meets construction requirement.
Detailed description of the invention
The present invention is done the most supplementary below in conjunction with specific embodiment, but limit the present invention never in any form.
Embodiment 1
Weigh the modified polyether class polycarboxylate water-reducer of 60kg, 40kg respectively
Polycarboxylic acid slump retaining agent, the sodium polyphosphate of 15kg, the sodium tripolyphosphate of 5kg, the sodium gluconate of 10kg, the triterpene saponin of 2kg, standby.
First adding water in agitator tank, modified polyether class polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, sodium polyphosphate and triterpene saponin added and stir 20min so that it is being dissolved into homogeneous solution, discharging is packed.
Embodiment 2
Weigh the esters polycarboxylate water-reducer of 70kg, 20kg respectively
Polycarboxylic acid slump retaining agent, 20kg sodium tripolyphosphate, the Borax of 15kg, the sodium gluconate of 15kg, the dodecyl sodium sulfate of 1kg, standby.
First adding water in agitator tank, esters polycarboxylate water-reducer, polycarboxylic acid slump retaining agent, sodium tripolyphosphate, sodium gluconate and dodecyl sodium sulfate added and stir 20min so that it is being dissolved into homogeneous solution, discharging is packed.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. a retardation water reducing agent, it is characterized in that: include following component by mass percentage: the water reducer of 6-14%, the slump retaining agent of 1-4%, the organic retarder of 1-3.5%, the mineral-type retarder of 1-2%, the air entraining agent of 0.1-0.4%, surplus is water, wherein, described organic retarder is one or more mixture in sodium gluconate, sodium citrate, sodium tartrate or white sugar, and described mineral-type retarder is one or more mixture in Borax, sodium tripolyphosphate, sodium pyrophosphate or sodium polyphosphate.
Retardation water reducing agent the most according to claim 1, it is characterized in that: described water reducer is the mixing of any one or any two or more in modified polyether class polycarboxylate water-reducer, esters polycarboxylate water-reducer, maleic anhydride class polycarboxylate water-reducer, be any proportioning when any two is mixed above.
Retardation water reducing agent the most according to claim 1, it is characterised in that: described slump retaining agent is polycarboxylic acid slump retaining agent.
Retardation water reducing agent the most according to claim 1, it is characterised in that: described air entraining agent is one or more mixture in Colophonium, rosin polymer, dodecyl sodium sulfate, triterpene saponin.
5. the preparation method of the retardation water reducing agent described in claim 1: it is characterized in that:
Comprise the following steps: put into water reducer, slump retaining agent, organic retarder, mineral-type retarder, air entraining agent and tap water the most successively, stir and make it be dissolved into homogeneous solution in about 20 minutes, obtain retardation water reducing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306868.3A CN105967544A (en) | 2016-05-11 | 2016-05-11 | {0><}0{>Retarding and water reducing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306868.3A CN105967544A (en) | 2016-05-11 | 2016-05-11 | {0><}0{>Retarding and water reducing agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105967544A true CN105967544A (en) | 2016-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306868.3A Pending CN105967544A (en) | 2016-05-11 | 2016-05-11 | {0><}0{>Retarding and water reducing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105967544A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483983A (en) * | 2018-05-02 | 2018-09-04 | 芜湖恒固混凝土材料有限公司 | A kind of concrete compound retarder |
| CN108609909A (en) * | 2018-05-02 | 2018-10-02 | 芜湖恒固混凝土材料有限公司 | A kind of preparation method of Organic-inorganic composite concrete retarder |
| CN108609895A (en) * | 2018-05-02 | 2018-10-02 | 芜湖恒固混凝土材料有限公司 | A kind of preparation method of concrete compound retarder |
| CN108609896A (en) * | 2018-05-02 | 2018-10-02 | 芜湖恒固混凝土材料有限公司 | A kind of Organic-inorganic composite concrete retarder |
| CN110655355A (en) * | 2019-10-25 | 2020-01-07 | 四川信敏绿色新建筑材料科技有限公司 | Iron sand concrete and preparation method thereof |
| CN111499409A (en) * | 2020-04-24 | 2020-08-07 | 湖南加美乐素新材料股份有限公司 | Precast concrete bone exposing agent for fabricated building and preparation method thereof |
| CN111848057A (en) * | 2020-08-09 | 2020-10-30 | 中建西部建设贵州有限公司 | Self-compacting concrete for super-long underwater pile foundation and preparation method thereof |
| CN111847958A (en) * | 2020-05-25 | 2020-10-30 | 中铁五局集团第四工程有限责任公司 | Composite retarding material and preparation method thereof |
| CN112250387A (en) * | 2020-10-27 | 2021-01-22 | 翁源县安和混凝土有限公司 | Super-slow 108-hour C30 underwater concrete |
| CN115353321A (en) * | 2022-09-05 | 2022-11-18 | 浙江玖龙新材料有限公司 | Mud-resistant pumping agent and production process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798199A (en) * | 2010-02-05 | 2010-08-11 | 中建商品混凝土有限公司 | Polycarboxylate composite water reducing agent suitable for low-cementitious material concrete and preparation method thereof |
| CN103102091A (en) * | 2011-11-10 | 2013-05-15 | 扬州鼎达新材料有限公司 | Retarding efficient water reducing agent |
| CN103539382A (en) * | 2012-07-12 | 2014-01-29 | 宁波市中达利建材科技有限公司 | Polycarboxylate superplasticizer |
| CN106007468A (en) * | 2016-05-18 | 2016-10-12 | 湖州绿色新材股份有限公司 | Concrete composite reinforcing water reducer and preparation method thereof |
-
2016
- 2016-05-11 CN CN201610306868.3A patent/CN105967544A/en active Pending
Patent Citations (4)
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| CN101798199A (en) * | 2010-02-05 | 2010-08-11 | 中建商品混凝土有限公司 | Polycarboxylate composite water reducing agent suitable for low-cementitious material concrete and preparation method thereof |
| CN103102091A (en) * | 2011-11-10 | 2013-05-15 | 扬州鼎达新材料有限公司 | Retarding efficient water reducing agent |
| CN103539382A (en) * | 2012-07-12 | 2014-01-29 | 宁波市中达利建材科技有限公司 | Polycarboxylate superplasticizer |
| CN106007468A (en) * | 2016-05-18 | 2016-10-12 | 湖州绿色新材股份有限公司 | Concrete composite reinforcing water reducer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王子明等主编: "《聚羧酸系高性能减水剂：制备性能与应用》", 30 June 2009 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483983A (en) * | 2018-05-02 | 2018-09-04 | 芜湖恒固混凝土材料有限公司 | A kind of concrete compound retarder |
| CN108609909A (en) * | 2018-05-02 | 2018-10-02 | 芜湖恒固混凝土材料有限公司 | A kind of preparation method of Organic-inorganic composite concrete retarder |
| CN108609895A (en) * | 2018-05-02 | 2018-10-02 | 芜湖恒固混凝土材料有限公司 | A kind of preparation method of concrete compound retarder |
| CN108609896A (en) * | 2018-05-02 | 2018-10-02 | 芜湖恒固混凝土材料有限公司 | A kind of Organic-inorganic composite concrete retarder |
| CN110655355A (en) * | 2019-10-25 | 2020-01-07 | 四川信敏绿色新建筑材料科技有限公司 | Iron sand concrete and preparation method thereof |
| CN111499409A (en) * | 2020-04-24 | 2020-08-07 | 湖南加美乐素新材料股份有限公司 | Precast concrete bone exposing agent for fabricated building and preparation method thereof |
| CN111847958A (en) * | 2020-05-25 | 2020-10-30 | 中铁五局集团第四工程有限责任公司 | Composite retarding material and preparation method thereof |
| CN111848057A (en) * | 2020-08-09 | 2020-10-30 | 中建西部建设贵州有限公司 | Self-compacting concrete for super-long underwater pile foundation and preparation method thereof |
| CN112250387A (en) * | 2020-10-27 | 2021-01-22 | 翁源县安和混凝土有限公司 | Super-slow 108-hour C30 underwater concrete |
| CN115353321A (en) * | 2022-09-05 | 2022-11-18 | 浙江玖龙新材料有限公司 | Mud-resistant pumping agent and production process thereof |
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Application publication date: 20160928 |
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