CN103979812B - High-performance high-activity concrete admixture - Google Patents
High-performance high-activity concrete admixture Download PDFInfo
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- CN103979812B CN103979812B CN201410180029.2A CN201410180029A CN103979812B CN 103979812 B CN103979812 B CN 103979812B CN 201410180029 A CN201410180029 A CN 201410180029A CN 103979812 B CN103979812 B CN 103979812B
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- 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
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Abstract
The invention discloses a high-performance high-activity concrete admixture, and relates to the technical field of building materials. The concrete admixture is composed of the following materials in parts by weight: 30-60 parts of furnace slag; 40-70 parts of water slag; 0.5-1.2 parts of a water reducing agent; 0.5-3 parts of a silica powder; 1-5 parts of dihydrate gypsum; 0.01-0.05 part of sodium gluconate; and 0.5-3 parts of anhydrous sodium sulphate. The high-performance high-activity concrete admixture is prepared by finely grinding the above materials to 300 mesh or more, preferably 400-450 mesh, and mixing uniformly. The concrete admixture has the advantages of high activity and high performance, can replace about 50% of cement, has high admixing ratio and low cement hydration reaction speed, reduces heat quantity released by hydration heat, allows the internal temperature of large-volume concrete to be slowly risen, prevents the concrete from cracking and generating cracks, has high engineering quality and low engineering cost, can prolong the durability of the concrete, improves the workability, and reduces the manual labor intensity.
Description
Technical field
The present invention relates to building material technical field, say it is that a kind of mix proportionses are high in detail, hydrated reaction of cement speed is low,
Reduce and heat up slowly inside the heat of heat of hydration release, mass concrete, prevent concrete cracking, produce crack, engineering matter
Amount is high, the high-performance high-activity concrete additive of low engineering cost.
Background technology
It is known that in order to improve concrete performance, saving cement, adjust strength grade of concrete, in concrete mixing
When mix the natural or artificial powdered ore material that can improve concrete performance and be referred to as concrete admixture.The most frequently used at present
Concrete admixture for loss on ignition be less than 4% plant slag or flyash, also have using granulated blast-furnace slag, volcanic ash
The materials such as class, the activity of any one concrete admixture above-mentioned is below 70%.In order to ensure construction quality, in ordinary cement
In when individually blending any one concrete admixture above-mentioned, because its activity is low, in its colloidal materials, the quality of admixture is less than
The 20% of the quality of cement.Typically cement 5%～20% can be saved, mix proportionses are low, hydrated reaction of cement is violent, speed is high, water
The heat changing heat release is many and fast, and the internal quick heating of mass concrete, maximum temperature are high, reach as high as 75 degree about, coagulation
Soil is easy to crack, produce crack, and construction quality is low；Cement usage amount is big, and construction costs is high.
Content of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, provide a kind of mix proportionses high, hydrated reaction of cement
Speed is slow, reduce speed and the heat of heat of hydration release, and the internal intensification of mass concrete is slow, maximum temperature is low, prevents from mixing
Solidifying soil cracking, generation crack, construction quality is high, the high-performance high-activity concrete additive of low engineering cost.
The present invention solves above-mentioned the deficiencies in the prior art and employed technical scheme comprise that：
A kind of high-performance high-activity concrete additive is it is characterised in that be made up of by weight ratio materials described below：
Slag 30-60 part；
Grain slag 40-70 part；
Water reducer 0.5-1.2 part；
0.5 3 parts of silica flour；
Dihydrate gypsum 1-5 part；
Sodium gluconate 0.01-0.05 part；
Glauber salt 0.5-3 part；
By levigate for above-mentioned material to more than 300 mesh, preferably 400-450 mesh, uniformly it is mixed to prepare.
Heretofore described slag is less than 4% plant slag or flyash for loss on ignition, and described grain slag is Iron Mine
Slag.
Plant slag or flyash that in the present invention, 50 parts of the proportioning of various materials preferred iron ore slag, loss on ignition are less than 4%
50 parts, 1 part of silica flour, 0.6 part of water reducer, 2 parts of dihydrate gypsum, 0.02 part of sodium gluconate, 1 part of glauber salt, above-mentioned material is ground
Carefully to 400 mesh, uniformly it is mixed to prepare.On the premise of ensureing concrete quality, in colloidal materials, the quality of admixture can be replaced
Cement for 40-50%.Performance is very prominent.
The present invention has high activity, according to GB《GBT12957-2005 is used for the industrial residue activity examination of cement mixture
Proved recipe method》Detection, its activity reaches more than 100%.When preparing concrete, on the premise of ensureing concrete quality, colloid material
In material, the quality of the high-performance concrete additive of the present invention can reach the 100% about of cement quality, can save 50% about
Cement.Press proportion by weight with admixture：50 parts of iron ore slag, loss on ignition be less than 4% 50 parts of plant slag, 1 part of silica flour,
0.6 part of water reducer, 2 parts of dihydrate gypsum, 0.02 part of sodium gluconate, 1 part of glauber salt, levigate to less than 400 mesh, uniformly mixing system
The high-performance concrete additive obtaining, according to GB《GBT12957-2005 is used for the industrial residue activity test of cement mixture
Method》Detection, its activity reaches 105%.On the premise of ensureing concrete quality, during preparation C30 concrete, in colloidal materials
The ratio of admixture can reach more than 50%, substantially reduces the consumption of cement.The present invention is due to preparing the colloid material of concrete
In material, account for very big ratio, reduce slow, the maximum temperature that heats up inside the heat of hydration heat of cement release, mass concrete
Low, through experimental tests, reach highest 60-70 DEG C using inside the mass concrete of the present invention through 6-10 hour, and use
Generally reach highest 70-80 DEG C through 3-5 hour inside the mass concrete of existing common admixture, can effectively prevent from mixing
Solidifying soil cracking, generation crack, improve construction quality；Greatly reduce cement usage amount, low engineering cost.The present invention is as good
Concrete mineral additive, not only can save cement consumption, and improve concrete durability, improve concrete workability,
The long-term behaviour of lifting concrete, cardinal principle is to dilute and react calcium hydroxide therein, so that concrete result is more encrypted
Real, it is not susceptible to erosion damage, be the important means improving concrete durability.The present invention has high activity, high-performance, can replace
For cement 50% about, and can extend the durability of concrete improve its workability, reduce hand labor intensity, construction costs
Low.
Specific embodiment
Embodiment 1
A kind of high-performance concrete additive is it is characterised in that be made up of by weight ratio materials described below：
30 parts of iron ore slag；
70 parts of the plant slag that loss on ignition is less than 4%；
3 parts of silica flour；
0.5 part of water reducer；
1 part of dihydrate gypsum；
0.01 part of sodium gluconate
0.5 part of glauber salt
By levigate for above-mentioned material to 300 mesh, uniformly it is mixed to prepare.
Embodiment 2
A kind of high-performance concrete additive is it is characterised in that be made up of by weight ratio materials described below：
50 parts of iron ore slag；
50 parts of the flyash that loss on ignition is less than 4%；
0.6 part of water reducer；
1 part of silica flour；
2 parts of dihydrate gypsum；
0.02 part of sodium gluconate；
1 part of glauber salt；
By levigate for above-mentioned material to 400 mesh, uniformly it is mixed to prepare.
Embodiment 3
A kind of high-performance concrete additive is it is characterised in that be made up of by weight ratio materials described below：
60 parts of slag；
Slag or 30 parts of flyash that loss on ignition is less than 4%；
1.2 parts of water reducer；
3 parts of silica flour；
5 parts of dihydrate gypsum；
0.05 part of sodium gluconate；
Glauber salt（Anhydrous sodium sulfate）3 parts；
By levigate for above-mentioned material to 450 mesh, uniformly it is mixed to prepare.
Heretofore described slag preferred thermoelectric factory or the blast-furnace slag of iron-smelter.High performance concrete in the present invention
Add retarded adhesive material, such as sodium gluconate, or various Icing Sugar material in admixture, can be made into retardation setting type high performance concrete and blend
Material；Add early strong material, the such as material such as five aqueous sodium persulfates, triethanolamine, can be made into early-strength high-performance concrete admixture；Plus
Enter the materials such as slow setting, diminishing, bleed, can be made into pumping type high-performance concrete additive.
, when preparing C30 concrete, mix in colloidal materials taking the high-performance concrete additive that embodiment 2 is obtained as a example
The ratio closing material can reach more than 50%, substantially reduces the consumption of cement, saves building cost.Reduce heat of hydration release
Heat, heats up inside mass concrete slow, maximum temperature is low, can effectively prevent concrete cracking, produce crack, construction quality
High；Greatly reduce cement usage amount, low engineering cost.
Claims (3)
1. a kind of high-performance high-activity concrete additive is it is characterised in that be made up of by weight ratio materials described below：
Slag 30-60 part；
Grain slag 40-70 part；
Water reducer 0.5-1.2 part；
0.5 3 parts of silica flour；
Dihydrate gypsum 1-5 part；
Sodium gluconate 0.01-0.05 part；
Glauber salt 0.5-3 part；
By levigate for above-mentioned material to more than 300 mesh, uniformly it is mixed to prepare.
2. high-performance high-activity concrete additive according to claim 1 is it is characterised in that described slag is to burn to lose
Plant slag or flyash that amount is less than 4%, described grain slag is iron ore slag.
3. high-performance high-activity concrete additive according to claim 2 is it is characterised in that by materials described below by weight
Part proportioning composition：Plant slag or 50 parts of flyash, 1 part of silica flour, water reducer 0.6 that 50 parts of iron ore slag, loss on ignition are less than 4%
Part, 2 parts of dihydrate gypsum, 0.02 part of sodium gluconate, 1 part of glauber salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180029.2A CN103979812B (en) | 2014-04-30 | 2014-04-30 | High-performance high-activity concrete admixture |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410180029.2A CN103979812B (en) | 2014-04-30 | 2014-04-30 | High-performance high-activity concrete admixture |
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| CN103979812A CN103979812A (en) | 2014-08-13 |
| CN103979812B true CN103979812B (en) | 2017-02-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336185A (en) * | 2016-08-16 | 2017-01-18 | 西安建筑科技大学 | Method for preparing alkali slag cement-based repair material |
| CN106746821A (en) * | 2016-12-30 | 2017-05-31 | 安徽省高迪环保股份有限公司 | A kind of application of power plant's activation slag and its II grade of flyash of replacement in concrete |
| CN107857496B (en) * | 2017-03-15 | 2020-02-18 | 吉林大学 | Comprehensive utilization method of coal gasification fine slag |
| CN107857499B (en) * | 2017-03-15 | 2019-09-13 | 吉林大学 | Prepare method, cement admixture and the cement composition of cement admixture |
| CN109626854A (en) * | 2019-01-30 | 2019-04-16 | 江苏金木土科技有限公司 | A kind of high-performance commerical ready-mixed concrete admixture |
| CN114751670A (en) * | 2022-04-27 | 2022-07-15 | 湖南高翔新材料有限公司 | High-performance concrete admixture and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4877892B2 (en) * | 2001-09-26 | 2012-02-15 | 電気化学工業株式会社 | Cement admixture, cement composition, and high fluidity concrete using the same |
| CN1222484C (en) * | 2003-06-19 | 2005-10-12 | 中国建筑材料科学研究院 | Concrete slurry form finely-divided mineral admixture and and method for manufacturing the same |
| CN101475330B (en) * | 2009-01-22 | 2013-03-06 | 中国建筑材料科学研究总院 | Composite high-early strength blending material for unballasted track plate and use thereof |
| CN102976672B (en) * | 2012-11-27 | 2016-09-07 | 新疆研科节能科技有限公司 | Low-carbon high-performance concrete auxiliary cementing material |
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Address after: 264200 chess Road south of Weihai Lingang Economic and Technological Development Zone, Shandong, Fuzhou Road Patentee after: Weihai Lu Di material of construction Science and Technology Ltd. Address before: Southern Economic and Technological Development Zone of Shandong city in Weihai province Fu Village 264200 Patentee before: Weihai Lu Di material of construction Science and Technology Ltd. |
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