CN103979812A - High-performance high-activity concrete admixture - Google Patents
High-performance high-activity concrete admixture Download PDFInfo
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- CN103979812A CN103979812A CN201410180029.2A CN201410180029A CN103979812A CN 103979812 A CN103979812 A CN 103979812A CN 201410180029 A CN201410180029 A CN 201410180029A CN 103979812 A CN103979812 A CN 103979812A
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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 in detail it is that a kind of mix proportions is high, hydrated reaction of cement speed is low, reduced the heat that hydration heat discharges, mass concrete is inner to heat up slowly, prevent concrete cracking, produce crack, construction quality is high, the high-performance high-activity concrete additive that construction costs is low.
Background technology
We know, in order to improve concrete performance, save cement, regulate strength grade of concrete, mix the natural or artificial powdered ore material that can improve concrete performance and be referred to as concrete admixture in the time of concrete mixing.The most frequently used concrete admixture is that loss on ignition is no more than 4% plant slag or flyash at present, also has the materials such as the granulated blast-furnace slag of use, volcanic ash class, and the activity of above-mentioned any one concrete admixture is all lower than 70%.In order to ensure construction quality, in Portland cement separately when above-mentioned any one concrete admixture of fusion, because its activity is low, in its colloidal materials the quality of adulterant be less than cement quality 20%.Generally can save cement 5%～20%, mix proportions is low, and the heat that hydrated reaction of cement is violent, speed is high, hydration heat discharges is many and fast, the inner quick heating of mass concrete, top temperature are high, reach as high as 75 degree left and right, concrete is easy to crack, generation crack, and construction quality is low; Cement usage quantity is large, and construction costs is high.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of mix proportions high, hydrated reaction of cement speed is slow, reduced speed and heat that hydration heat discharges, the inner intensification of mass concrete is slow, top temperature is low, prevent concrete cracking, produce crack, construction quality is high, the high-performance high-activity concrete additive that construction costs is low.
The technical scheme that the present invention solves above-mentioned the deficiencies in the prior art employing is:
A kind of high-performance high-activity concrete additive, is characterized in that being made up of by weight ratio following material:
Slag 30-60 part;
Grain slag 40-70 part;
Water reducer 0.5-1.2 part;
0.5-3 parts of silica flours;
Dihydrate gypsum 1-5 part;
Sunmorl N 60S 0.01-0.05 part;
Sodium sulfate anhydrous.min(99) 0.5-3 part;
By levigate above-mentioned materials, to 300 orders, preferably 400-450 order, evenly mixes and makes.
Slag described in the present invention is plant slag or the flyash that loss on ignition is less than 4%, and described grain slag is iron ore slag.
In the present invention, 50 parts, proportion optimization iron ore slag, the loss on ignition of various materials is less than 4% plant slag or 50 parts, flyash, 1 part of silica flour, 0.6 part of water reducer, 2 parts of dihydrate gypsums, 0.02 part of Sunmorl N 60S, 1 part of Sodium sulfate anhydrous.min(99),, evenly mix and make to 400 orders levigate above-mentioned materials.Ensureing that under the prerequisite of concrete quality, in colloidal materials, the quality of adulterant can substitute the cement of 40-50%.Performance is very outstanding.
The present invention has high reactivity, detects according to GB " GBT12957-2005 is for the industrial residue activity test method of cement mixture ", and its activity reaches more than 100%.In the time preparing concrete, ensureing that under the prerequisite of concrete quality, in colloidal materials, the quality of high-performance concrete additive of the present invention can reach 100% left and right of cement quality, can save the cement of 50% left and right.With in adulterant by proportion by weight: 50 parts, iron ore slag, loss on ignition are less than 4%
power plant50 parts, slag, 1 part of silica flour, 0.6 part of water reducer, 2 parts of dihydrate gypsums, 0.02 part of Sunmorl N 60S, 1 part of Sodium sulfate anhydrous.min(99), levigate to being less than 400 orders, evenly mix the high-performance concrete additive making, detect according to GB " GBT12957-2005 is for the industrial residue activity test method of cement mixture ", its activity reaches 105%.Ensureing under the prerequisite of concrete quality, when preparation C30 concrete, in colloidal materials, the ratio of adulterant can reach more than 50%, has greatly reduced the consumption of cement.The present invention is due in the concrete colloidal materials of preparation, account for very large ratio, reduce the heat that hydration heat of cement discharges, mass concrete is inner to heat up slowly, and top temperature is low, detects through experiment, use mass concrete of the present invention inside to reach the highest 60-70 DEG C through 6-10 hour, conventionally reach the highest 70-80 DEG C through 3-5 hour and the mass concrete that uses existing common adulterant is inner, can effectively prevent concrete cracking, produce crack, improve construction quality; Greatly reduce cement usage quantity, construction costs is low.The present invention is as good concrete mineral additive, not only can save cement consumption, and raising concrete durability, improve concrete workability, promote concrete long-term behaviour, cardinal principle is to dilute and react calcium hydroxide wherein, makes concrete result more closely knit, being difficult for erosion damage occurs, is the important means that improves concrete durability.The present invention has high reactivity, high-performance, alternative cement 50% left and right, and can extend concrete weather resistance and improved its workability, reduced hand labor intensity, construction costs is low.
Embodiment
Embodiment 1
A kind of high-performance concrete additive, is characterized in that being made up of by weight ratio following material:
30 parts, iron ore slag;
Loss on ignition is less than 70 parts of 4% plant slags;
3 parts of silica flours;
0.5 part of water reducer;
1 part of dihydrate gypsum;
0.01 part of Sunmorl N 60S
0.5 part of Sodium sulfate anhydrous.min(99)
, evenly mix and make to 300 orders levigate above-mentioned materials.
Embodiment 2
A kind of high-performance concrete additive, is characterized in that being made up of by weight ratio following material:
50 parts, iron ore slag;
Loss on ignition is less than 50 parts, 4% flyash;
0.6 part of water reducer;
1 part of silica flour;
2 parts of dihydrate gypsums;
0.02 part of Sunmorl N 60S;
1 part of Sodium sulfate anhydrous.min(99);
, evenly mix and make to 400 orders levigate above-mentioned materials.
Embodiment 3
A kind of high-performance concrete additive, is characterized in that being made up of by weight ratio following material:
60 parts, slag;
Loss on ignition is less than 30 parts, 4% slag or flyash;
1.2 parts of water reducers;
3 parts of silica flours;
5 parts of dihydrate gypsums;
0.05 part of Sunmorl N 60S;
3 parts of Sodium sulfate anhydrous.min(99) (anhydrous sodium sulphate);
, evenly mix and make to 450 orders levigate above-mentioned materials.
Slag preferred thermoelectric factory described in the present invention or the blast-furnace slag of iron work.In high-performance concrete additive of the present invention, add retarded adhesive material, as Sunmorl N 60S, or various Icing Sugar material, can be made into retardation setting type high-performance concrete additive; Add early strong material, as materials such as five aqueous sodium persulfates, trolamines, can be made into early-strength high-performance concrete admixture; Add the materials such as slow setting, diminishing, bleed, can be made into pumping type high-performance concrete additive.
The high-performance concrete additive making taking embodiment 2 is example, and in the time of preparation C30 concrete, in colloidal materials, the ratio of adulterant can reach more than 50%, has greatly reduced the consumption of cement, saves building cost.Reduced the heat that hydration heat discharges, mass concrete is inner to heat up slowly, and top temperature is low, can effectively prevent concrete cracking, produce crack, and construction quality is high; Greatly reduce cement usage quantity, construction costs is low.
Claims (3)
1. a high-performance high-activity concrete additive, is characterized in that being made up of by weight ratio following material:
Slag 30-60 part;
Grain slag 40-70 part;
Water reducer 0.5-1.2 part;
0.5-3 parts of silica flours;
Dihydrate gypsum 1-5 part;
Sunmorl N 60S 0.01-0.05 part;
Sodium sulfate anhydrous.min(99) 0.5-3 part;
By levigate above-mentioned materials, to 300 orders, preferably 400-450 order, evenly mixes and makes.
2. high-performance high-activity concrete additive according to claim 1, is characterized in that described slag is plant slag or the flyash that loss on ignition is less than 4%, and described grain slag is iron ore slag.
3. high-performance high-activity concrete additive according to claim 1 and 2,50 parts, proportion optimization iron ore slag, the loss on ignition that it is characterized in that described various materials of the present invention is less than 4% plant slag or 50 parts, flyash, 1 part of silica flour, 0.6 part of water reducer, 2 parts of dihydrate gypsums, 0.02 part of Sunmorl N 60S, 1 part of Sodium sulfate anhydrous.min(99).
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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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| CN201410180029.2A CN103979812B (en) | 2014-04-30 | 2014-04-30 | High-performance high-activity concrete admixture |
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| CN103979812A true CN103979812A (en) | 2014-08-13 |
| CN103979812B CN103979812B (en) | 2017-02-22 |
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Cited By (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 |
| CN107857496A (en) * | 2017-03-15 | 2018-03-30 | 吉林大学 | A kind of method of comprehensive utilization of coal gasification fine slag |
| CN107857499A (en) * | 2017-03-15 | 2018-03-30 | 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 |
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| CN1482088A (en) * | 2003-06-19 | 2004-03-17 | 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 |
| CN101475330A (en) * | 2009-01-22 | 2009-07-08 | 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 |
| 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 |
| CN102976672A (en) * | 2012-11-27 | 2013-03-20 | 新疆研科节能科技有限公司 | Low-carbon high-performance concrete auxiliary cementing material |
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2014
- 2014-04-30 CN CN201410180029.2A patent/CN103979812B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1482088A (en) * | 2003-06-19 | 2004-03-17 | 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 |
| CN101475330A (en) * | 2009-01-22 | 2009-07-08 | 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 |
| CN102976672A (en) * | 2012-11-27 | 2013-03-20 | 新疆研科节能科技有限公司 | Low-carbon high-performance concrete auxiliary cementing material |
Cited By (8)
| 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 |
| CN107857496A (en) * | 2017-03-15 | 2018-03-30 | 吉林大学 | A kind of method of comprehensive utilization of coal gasification fine slag |
| CN107857499A (en) * | 2017-03-15 | 2018-03-30 | 吉林大学 | Prepare method, cement admixture and the cement composition of cement admixture |
| CN107857499B (en) * | 2017-03-15 | 2019-09-13 | 吉林大学 | Prepare method, cement admixture and the cement composition of cement admixture |
| CN107857496B (en) * | 2017-03-15 | 2020-02-18 | 吉林大学 | Comprehensive utilization method of coal gasification fine slag |
| 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 |
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| CN103979812B (en) | 2017-02-22 |
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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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