CN1657473A - High titanium blast furnace slag concrete adulterant and its production method - Google Patents
High titanium blast furnace slag concrete adulterant and its production method Download PDFInfo
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- CN1657473A CN1657473A CN2005100203308A CN200510020330A CN1657473A CN 1657473 A CN1657473 A CN 1657473A CN 2005100203308 A CN2005100203308 A CN 2005100203308A CN 200510020330 A CN200510020330 A CN 200510020330A CN 1657473 A CN1657473 A CN 1657473A
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- blast furnace
- furnace slag
- high titanium
- titanium blast
- concrete
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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
An additive of concrete for replacing part of cement is proportionally prepared from high-Ti slags of blast furnace and trigger. It can improve the strength of concrete and its resistance to sulfate, freeze and carbonizing.
Description
Technical field
The present invention relates to a kind of concrete admixture, especially is the concrete admixture and the production method thereof of main raw material with the blast-furnace slag.
Background technology
For saving cement, improve concrete performance, regulate purpose such as strength grade of concrete, the natural or artificial mineral material that adds when concrete mix prepares is referred to as concrete mineral admixture.
The adulterant that is used for concrete can be divided into active mineral admixture and nonactive mineral admixture two fiery classes.General and the cement component of nonactive mineral admixture does not chemically react, or chemical action is very little, and as materials such as levigate quartz sand, Wingdales, the main effect of this class adulterant is its filling effect.Though and active mineral admixture itself does not have hydraulically active or hydraulically active is low, hydration rate is very slow, the Ca (OH) that can produce with the cement clinker mineral aquation
2The reaction of generation secondary hydration generates the gum material (mainly being hydrated calcium silicate gel) with hydraulicity.As ordinary blast slag, pozzolanic materials, flyash, silicon ash etc.The effect of this class adulterant is a kind of comprehensive physics a---chemical action.
Blast-furnace slag is to smelt the industrial residue that emits in the pig iron process, according to TiO in the blast furnace slag
2The difference of content can be divided into ordinary blast slag (TiO
2＜10%=and high titanium blast furnace slag (TiO
2〉=10%).Because CaO content is higher, enter in the vitreum mostly during quenching in the ordinary blast slag, thereby make in the vitreum polymerization degree of silicon-oxy tetrahedron lower, mostly be single aggressiveness structure greatly, hydraulically active is higher, if at common exciting agent (as Ca (OH)
2) effect under can bring into play its latent hydraulicity, generate hydrated products such as a large amount of hydrated calcium silicates and drated calcium aluminate, thereby significantly improve the intensity of cement concrete.In addition, the ordinary blast slag also is easy to grinding.Therefore, the ordinary blast slag is used as concrete admixture and is used widely.
And high-titanium blast furnace slag (contains TiO in the blast furnace slag as Panzhihua Iron
222～24%) owing to wherein contain higher TiO
2, CaO content is relatively low, even quenching has also generated the active uhligite (CaOTiO of more no hydraulic in the slag
2), cause the CaO amount that enters in the vitreum less, the silicon-oxy tetrahedron polymerization degree is higher in the vitreum, and hydraulically active is lower.Secondly, high titanium blast furnace slag also is difficult for grinding.Above-mentioned reason causes the application of high titanium blast furnace slag to be restricted, and for example, the high titanium blast furnace slag of Panzhihua Iron is limited by own characteristic, still can not be utilized in a large number a few days ago, since going into operation, accumulated and stacked more than 5,000 ten thousand tons of high titanium blast furnace slags, take up an area of 40 surplus ten thousand m
2And annual speed with about 2,500,000 tons increases, this present situation is as continuing, the said firm need drop into huge fund and build new slag field, its Sustainable development is formed obstacle, and the high titanium blast furnace slag that bulk deposition gets up will constantly take more arable land, serious environment pollution, especially basin, Jinsha jiang River is polluted, in addition to the flood passage in Jinsha jiang River, drainning off floodwaters constitutes a threat to.
Summary of the invention
It is the concrete admixture of main raw material with the high titanium blast furnace slag that technical problem to be solved by this invention provides a kind of, and this adulterant equivalent by a certain percentage replaces cement, and the concrete strength that makes can satisfy the corresponding standard requirement.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this concrete admixture contains following component by weight percentage: high titanium blast furnace slag micro mist 80～95%, exciting agent 5～20%, wherein, the specific surface area＞400m of high titanium blast furnace slag micro mist
2/ Kg.
Described exciting agent is meant any one in following three kinds of exciting agents: the plaster of paris; UA exciting agent (mainly containing anhydrous calcium sulphoaluminate 40～70% by weight percentage); The S exciting agent (mainly contains SO by weight percentage
340～60% and Al
2O
320～30%).
Described exciting agent can preferably adopt the S exciting agent.
Mixing exciting agent is to act in concrete in order to bring into play high titanium blast furnace slag better.The result shows, after mixing an amount of exciting agent, the surface reaction of high titanium blast furnace slag micro powder granule is more remarkable, the hydrated product that generates is more, be mainly needle-like and sheet product, also have a spot of macroparticle shape product that waits, the latent hydraulicity that it can excite the high titanium blast furnace slag micro mist is described, promote the generation of " secondary reaction " and the generation of hydrated product, concrete intensity is played the enhanced effect.
Another technical problem to be solved by this invention provides the production method of above-mentioned concrete admixture, and this method comprises the steps:
1. high titanium blast furnace slag is dried to moisture less than 0.5%;
2. press high titanium blast furnace slag weight and add 0.03～0.05% grinding aid, mix, go in the ball mill grinding to specific surface area＞400m
2/ Kg;
3. add 5～20% exciting agents by weight percentage, mix.
The grinding aid of described step in 2. is meant any one in ammonium acetate, trolamine, Sodium hexametaphosphate 99, ethylene glycol, the water glass.
Described grinding aid can preferably adopt trolamine.
Add grinding aid and be in order to improve the grinding characters of high titanium blast furnace slag, its grinding-aid effect sees the following form.As can be seen from the table, when not adding grinding aid, reach suitable specific surface area, high titanium blast furnace slag manys grinding about 15 minutes than the ordinary blast slag; After adding grinding aid, high titanium blast furnace slag can reach the grinding effect suitable with the ordinary blast slag in the identical time.
The scoriaceous grinding situation contrast of table 1 high titanium blast furnace slag and ordinary blast
| Specific surface area (m 2/kg) | ||||||
| The grinding time (min) | ??15 | ?30 | ?45 | ?60 | ?75 | ????90 |
| The ordinary blast slag | ??167.1 | ?284.8 | ?373.3 | ?424.2 | ?466.6 | ????510.5 |
| High titanium blast furnace slag | ??156.3 | ?245.8 | ?322.0 | ?379.7 | ?413.0 | ????481.9 |
| High titanium blast furnace slag+grinding aid | ??166.8 | ?275.6 | ?362.0 | ?419.9 | ?459.9 | ????508.4 |
The invention has the beneficial effects as follows, make high titanium blast furnace slag be used as coagulation scholar adulterant as ordinary blast slag and flyash, when equivalent replaces 20～30% cement, can make above normal concrete of complete standard compliant C30 and the above high-strength concrete of C50.Concrete is except that intensity can satisfy the corresponding standard requirement, and its sulfate resistance, frost resistance, shrinkability and anti-carbonization are all good, and the high titanium blast furnace slag that can't utilize basically before making is able to a large amount of utilizations, has realized the utilization again of industrial solid castoff.
Embodiment
The present invention is further described below in conjunction with embodiment.
One, the starting material that concrete batching adopted
Cement: 42.5R ordinary Portland cement
Coarse aggregate: than the cobble of small particle size and the mixing rubble of the cobble after the fragmentation, particle diameter 5～31.5mm, volume density 2.69g/cm
3, crush values 4.7%.
Fine aggregate: medium coarse sand, fineness modulus 3.1, volume density 2.76g/cm
3, silt content≤1.5%.
Water reducer: the concrete high efficiency water reducing agent that different business mens are produced, its main component is a beta-naphthalenesulfonic-acid formaldehyde condensation compound, the trade mark of producing as West China concrete admixture company limited is SPF, FTS-HC, the trade mark that the production of two concrete admixture factories is climbed in Chengdu is FDN, and the trade mark that the Sichuan magnificent concrete admixture of crystalline substance factory produces is the water reducer of QH-HP etc.
High titanium blast furnace slag main chemical (weight percent): CaO 23～26%, SiO
221～24%, Al
2O
312～15%, MgO 6～9%, TiO
222～24%.
Two, embodiment
1, preparation high performance concrete
Embodiment 1: by every cubic meter of concrete, cement 480kg, high titanium blast furnace slag adulterant 135kg (wherein: high titanium blast furnace slag micro mist 110kg, weight percent 81.5%, UA exciting agent 25kg, weight percent 18.5%), rubble 1080kg, sand 608kg, SPF water reducer 7.4kg, water-cement ratio 0.26.
The concrete seven sky ultimate compression strength 69.2MPa that is made, 28 days ultimate compression strength 76.0MPa.
Embodiment 2: by every cubic meter of concrete, cement 480kg, high titanium blast furnace slag adulterant 135kg (wherein: high titanium blast furnace slag micro mist 123kg, weight percent 91.1%, plaster of paris 12kg, weight percent 8.9%), rubble 1080kg, sand 608kg, SPF water reducer 7.4kg, water-cement ratio 0.26.
The concrete seven sky ultimate compression strength 64.8MPa that is made, 28 days ultimate compression strength 72.2MPa.
Embodiment 3: by every cubic meter of concrete, cement 480kg, high titanium blast furnace slag adulterant 135kg (wherein: high titanium blast furnace slag micro mist 123kg, weight percent 91.1%, S exciting agent 12kg, weight percent 8.9%), rubble 1080kg, sand 608kg, SPF water reducer 7.4kg, water-cement ratio 0.26.
The concrete seven sky ultimate compression strength 66.9MPa that is made, 28 days ultimate compression strength 84.5MPa.
The workability of this three routine concrete mix is all fine, and after 2 hours, its slump still can reach more than the 180mm.Concrete weather resistance is also very good, and when especially impervious hydraulic pressure reached 3.5MPa, the depth of penetration of water only was 1/5 of a specimen height.The result shows, adopts high titanium blast furnace slag concrete adulterant of the present invention can make the above high performance concrete of C60 even C70 fully.
2, preparation normal concrete
Embodiment 4: by every cubic meter of concrete, cement 280kg, high titanium blast furnace slag adulterant 120kg (wherein: high titanium blast furnace slag micro mist 105kg, weight percent 87.5%, UA exciting agent 15kg, weight percent 12.5%), rubble 1141kg, sand 641kg, QH-HP water reducer 4.0kg, water-cement ratio 0.38.
The concrete seven sky ultimate compression strength 48.3MPa that is made, 28 days ultimate compression strength 52.4MPa.
Embodiment 5: by every cubic meter of concrete, cement 280kg, high titanium blast furnace slag adulterant 120kg (wherein: high titanium blast furnace slag micro mist 112kg, weight percent 93.3%, plaster of paris 8kg, weight percent 6.7%), rubble 1141Kg, sand 641kg, QH-HP water reducer 4.0kg, water-cement ratio 0.38.The concrete seven sky ultimate compression strength 44.8MPa that is made, 28 days ultimate compression strength 50.0MPa.
Embodiment 6: by every cubic meter of concrete, cement 280kg, high titanium blast furnace slag adulterant 120kg (wherein: high titanium blast furnace slag micro mist 112kg, weight percent 93.3%, S exciting agent 8kg, weight percent 6.7%), rubble 1141Kg, sand 641kg, QH-HP water reducer 4.0kg, water-cement ratio 0.38.
The concrete seven sky ultimate compression strength 47.2MPa that is made, 28 days ultimate compression strength 53.8MPa.
The result shows, adopt high titanium blast furnace slag concrete adulterant of the present invention can make the above normal concrete of C40 fully, and equivalent replaces 20～30% cement.
Claims (7)
1, a kind of high titanium blast furnace slag concrete adulterant, it is characterized in that: this concrete admixture contains following component by weight percentage: high titanium blast furnace slag micro mist 80～95%, exciting agent 5～20%, wherein, the specific surface area＞400m of high titanium blast furnace slag micro mist
2/ Kg.
2, according to the described concrete admixture of claim 1, it is characterized in that: this concrete admixture is composed of the following components by weight percentage: high titanium blast furnace slag micro mist 95～99%, exciting agent 1～5%.
3, according to claim 1 or 2 described concrete admixtures, it is characterized in that: described exciting agent is meant any one in following three kinds of exciting agents:
The plaster of paris;
The exciting agent that contains anhydrous calcium sulphoaluminate 40～70% by weight percentage;
Contain SO by weight percentage
340～60%, Al
2O
320～30% exciting agent.
4, according to the described concrete admixture of claim 3, it is characterized in that: described exciting agent is meant and contains SO by weight percentage
340～60% and Al
2O
320～30% exciting agent.
5, a kind of production method of high titanium blast furnace slag concrete adulterant comprises the steps:
1. high titanium blast furnace slag is dried to moisture less than 0.5%;
2. press high titanium blast furnace slag weight and add 0.03～0.05% grinding aid, mix, go in the ball mill grinding to specific surface area＞400m
2/ Kg;
3. add 5～20% exciting agents by weight percentage, mix.
6, according to the production method of the described high titanium blast furnace slag concrete adulterant of claim 5, it is characterized in that: the grinding aid of described step in 2. is meant any one in ammonium acetate, trolamine, Sodium hexametaphosphate 99, ethylene glycol, the water glass.
7, according to the production method of the described high titanium blast furnace slag concrete adulterant of claim 6, it is characterized in that: described grinding aid is meant trolamine.
Priority Applications (1)
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|---|---|---|---|
| CN2005100203308A CN1657473A (en) | 2005-02-04 | 2005-02-04 | High titanium blast furnace slag concrete adulterant and its production method |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN2005100203308A CN1657473A (en) | 2005-02-04 | 2005-02-04 | High titanium blast furnace slag concrete adulterant and its production method |
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| Publication Number | Publication Date |
|---|---|
| CN1657473A true CN1657473A (en) | 2005-08-24 |
Family
ID=35007198
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613191B (en) * | 2009-07-22 | 2012-11-21 | 济南鲁新新型建材有限公司 | Railway track plate admixture |
| CN103102088A (en) * | 2013-01-16 | 2013-05-15 | 上海质能新型材料科技有限公司 | Inorganic composite conglutination powder and preparation method thereof |
| CN105174758A (en) * | 2015-09-15 | 2015-12-23 | 和县浙徽新型材料有限公司 | Borosilicate glass powder modified ultra-fine slag micro-powder and preparation method thereof |
| CN105236813A (en) * | 2015-09-15 | 2016-01-13 | 和县浙徽新型材料有限公司 | Modified superfine slag micro-powder with effect of concrete wear resistance improving, and preparation method thereof |
| CN105236801A (en) * | 2015-09-15 | 2016-01-13 | 和县浙徽新型材料有限公司 | Good self-lubricating modified superfine slag micro-powder and preparation method thereof |
| CN106925414A (en) * | 2017-03-22 | 2017-07-07 | 福建省建筑科学研究院 | A kind of method for improving stainless steel refining slag grinding characters and activity |
| CN107827375A (en) * | 2017-12-18 | 2018-03-23 | 攀枝花环业冶金渣开发有限责任公司 | A kind of concrete high titaniferous blast-furnace slag micro mist and concrete |
| CN108609928A (en) * | 2018-05-21 | 2018-10-02 | 四川汇源钢建装配建筑有限公司 | Using puffing slag as concrete road pavement brick of raw material and preparation method thereof, production system |
| CN110698100A (en) * | 2019-11-12 | 2020-01-17 | 攀枝花环业冶金渣开发有限责任公司 | Method for using slag of slag steel iron electric furnace as concrete admixture |
| CN111302690A (en) * | 2020-02-20 | 2020-06-19 | 四川星明能源环保科技有限公司 | Activating agent for S75-grade high-titanium slag micro powder |
| CN111925148A (en) * | 2020-07-31 | 2020-11-13 | 日照钢铁控股集团有限公司 | Composite admixture for cement and concrete production and preparation method thereof |
| CN112010574A (en) * | 2020-09-07 | 2020-12-01 | 攀钢集团工程技术有限公司 | Titanium extraction tailing cementing material |
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2005
- 2005-02-04 CN CN2005100203308A patent/CN1657473A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613191B (en) * | 2009-07-22 | 2012-11-21 | 济南鲁新新型建材有限公司 | Railway track plate admixture |
| CN103102088A (en) * | 2013-01-16 | 2013-05-15 | 上海质能新型材料科技有限公司 | Inorganic composite conglutination powder and preparation method thereof |
| CN105174758A (en) * | 2015-09-15 | 2015-12-23 | 和县浙徽新型材料有限公司 | Borosilicate glass powder modified ultra-fine slag micro-powder and preparation method thereof |
| CN105236813A (en) * | 2015-09-15 | 2016-01-13 | 和县浙徽新型材料有限公司 | Modified superfine slag micro-powder with effect of concrete wear resistance improving, and preparation method thereof |
| CN105236801A (en) * | 2015-09-15 | 2016-01-13 | 和县浙徽新型材料有限公司 | Good self-lubricating modified superfine slag micro-powder and preparation method thereof |
| CN106925414A (en) * | 2017-03-22 | 2017-07-07 | 福建省建筑科学研究院 | A kind of method for improving stainless steel refining slag grinding characters and activity |
| CN107827375A (en) * | 2017-12-18 | 2018-03-23 | 攀枝花环业冶金渣开发有限责任公司 | A kind of concrete high titaniferous blast-furnace slag micro mist and concrete |
| CN108609928A (en) * | 2018-05-21 | 2018-10-02 | 四川汇源钢建装配建筑有限公司 | Using puffing slag as concrete road pavement brick of raw material and preparation method thereof, production system |
| CN108609928B (en) * | 2018-05-21 | 2021-01-01 | 四川汇源钢建装配建筑有限公司 | Concrete pavement brick taking expanded slag as raw material, preparation method and production system thereof |
| CN110698100A (en) * | 2019-11-12 | 2020-01-17 | 攀枝花环业冶金渣开发有限责任公司 | Method for using slag of slag steel iron electric furnace as concrete admixture |
| CN111302690A (en) * | 2020-02-20 | 2020-06-19 | 四川星明能源环保科技有限公司 | Activating agent for S75-grade high-titanium slag micro powder |
| CN111925148A (en) * | 2020-07-31 | 2020-11-13 | 日照钢铁控股集团有限公司 | Composite admixture for cement and concrete production and preparation method thereof |
| CN112010574A (en) * | 2020-09-07 | 2020-12-01 | 攀钢集团工程技术有限公司 | Titanium extraction tailing cementing material |
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