CN106316185B - Concrete microdilatancy mineral admixture and preparation method thereof - Google Patents
Concrete microdilatancy mineral admixture and preparation method thereof Download PDFInfo
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- CN106316185B CN106316185B CN201610700179.0A CN201610700179A CN106316185B CN 106316185 B CN106316185 B CN 106316185B CN 201610700179 A CN201610700179 A CN 201610700179A CN 106316185 B CN106316185 B CN 106316185B
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- slag
- granular material
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- microdilatancy
- mineral admixture
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of concrete microdilatancy mineral admixture and preparation method thereof, following steps：It is Step 1: broken：By dehydrated gypsum, vessel slag, crushing-type resulting mixture material after blast furnace slag and flyash mixing；Step 2: heating, drying：By mixed material heating, drying；Step 3: stirring：Mixed material is stirred, Step 4: powder：Mixed material is ground into granular material；Step 5: selection by winnowing：Granular material carries out selection by winnowing, selects the granular material that fineness tails over the granular material less than 25% for 45 microns of square hole screens；Step 6: pneumatic stirring：Pneumatic stirring is carried out to granular material, fully mixes, obtains concrete microdilatancy mineral admixture.Simple production process of the present invention, cost is low, and with dehydrated gypsum, vessel slag, blast furnace slag and flyash are that primary raw material makes concrete microdilatancy mineral admixture, have not only handled a large amount of industrial residues, have protected environment, and are turned waste into wealth, and improve economic benefit.
Description
Technical field
The invention belongs to solid waste field, more particularly to a kind of concrete microdilatancy mineral admixture and its making
Method.
Background technology
Explanation of nouns:
The waste discharged when blast furnace slag is manUfaCtUre of pig iron from blast furnace, when furnace temperature reaches 1400-1600 DEG C, furnace charge melts
Melt, the ash content in gangue, coke and cosolvent and other impurity that can not enter in the pig iron in ore formed with silicate and
The slag above molten iron is floated over based on aluminate.Main component is CaO, SiO in blast furnace slag2And Al2O3。
Vessel slag, i.e. converter slag are caused waste residues in convertor steelmaking process, are mainly derived from molten iron and institute in steel scrap
Containing the oxide formed after element oxide, impurity that metal charge is brought into, the slag former (such as lime stone, fluorite, silica) of addition,
Oxidant, desulfurization product and furnace lining material for being etched etc. mainly contain CaO, SiO2、Al2O3、MgO、Fe2O3、MnO、P2O5With
F-CaO (free calcium oxide) etc..
Flyash, is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is the main of coal-burning power plant's discharge
Solid waste, key component are：SiO2、Al2O3、FeO、Fe2O3、CaO、TiO2Deng.
Microdilatancy admixture produces the big crystallization of volume change by being reacted with the cement in concrete, water hydratable, so as to
Cause volume of concrete to expand, produce certain prestressing force, help to control Shrinkage Cracking of Concrete.Existing microdilatancy admixture
Typically it is made up of bauxite of major ingredient, but its cost is higher.In addition, dehydrated gypsum, vessel slag, blast furnace slag and fly ash etc. are solid
The processing of body discarded object is always problem, how to above-mentioned solid waste make full use of that to turn waste into wealth be that people are permanent
The problem of research.
The content of the invention
In order to overcome problem above, the invention provides a kind of concrete microdilatancy mineral admixture and its making side
Method.Simple production process of the present invention, cost is low, and with dehydrated gypsum, vessel slag, blast furnace slag and flyash are that primary raw material making is mixed
Solidifying soil uses microdilatancy mineral admixture, has not only handled a large amount of industrial residues, has protected environment, and turns waste into wealth, and improves
Economic benefit.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of concrete microdilatancy mineral admixture, including dehydrated gypsum, vessel slag, blast furnace slag and flyash.
The mass ratio of further improvement, the dehydrated gypsum, vessel slag, blast furnace slag and flyash is 8:40:20:32.
A kind of concrete preparation method of microdilatancy mineral admixture, following steps：
It is Step 1: broken：By dehydrated gypsum, vessel slag, crushing-type resulting mixture material after blast furnace slag and flyash mixing；
Step 2: heating, drying：By mixed material heating, drying；
Step 3: stirring：Mixed material is stirred；
Step 4: powder：Mixed material is ground into granular material；
Step 5: selection by winnowing：Granular material carries out selection by winnowing, selects fineness and tails over powdery less than 25% for 45 microns of square hole screens
Material；
Step 6: pneumatic stirring：Pneumatic stirring is carried out to granular material, fully mixes, obtains concrete microdilatancy ore deposit
Polymer blends material.
The mass ratio of further improvement, the dehydrated gypsum, vessel slag, blast furnace slag and flyash is 8:40:20:32.
Simple production process of the present invention, cost is low, and with dehydrated gypsum, vessel slag, blast furnace slag and flyash are primary raw material
Concrete microdilatancy mineral admixture is made, a large amount of industrial residues has not only been handled, has protected environment, and is turned waste into wealth,
Improve economic benefit.
Embodiment
The present invention is further elaborated and illustrated with reference to specific embodiment:
Embodiment 1
8 kilograms of dehydrated gypsums, 40 kilograms of vessel slags, 20 kilograms of blast furnace slags and 32 kilograms of flyash are chosen, are then carried out down
State operation：
It is Step 1: broken：By dehydrated gypsum, vessel slag, crushing-type resulting mixture material after blast furnace slag and flyash mixing；
Step 2: heating, drying：By mixed material heating, drying；
Step 3: stirring：Mixed material is stirred；
Step 4: powder：Mixed material is ground into granular material；
Step 5: selection by winnowing：Granular material carries out selection by winnowing, selects fineness and tails over powdery less than 25% for 45 microns of square hole screens
Material；
Step 6: pneumatic stirring：Pneumatic stirring is carried out to granular material, fully mixes, obtains concrete microdilatancy ore deposit
Polymer blends material.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (2)
1. a kind of concrete microdilatancy mineral admixture, it is characterised in that including dehydrated gypsum, vessel slag, blast furnace slag and powder
The mass ratio of coal ash, the dehydrated gypsum, vessel slag, blast furnace slag and flyash is 8:40:20:32.
2. a kind of concrete preparation method of microdilatancy mineral admixture, it is characterised in that comprise the following steps：
It is Step 1: broken：By dehydrated gypsum, vessel slag, crushing-type resulting mixture material after blast furnace slag and flyash mixing；It is described de-
The mass ratio of water gypsum, vessel slag, blast furnace slag and flyash is 8:40:20:32；
Step 2: heating, drying：By mixed material heating, drying；
Step 3: stirring：Mixed material is stirred；
Step 4: powder：Mixed material is ground into granular material；
Step 5: selection by winnowing：Granular material carries out selection by winnowing, selects fineness and tails over powder less than 25% for 45 microns of square hole screens
Material；
Step 6: pneumatic stirring：Pneumatic stirring is carried out to granular material, is fully mixed, is obtained concrete and mixed with microdilatancy mineral
Close material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700179.0A CN106316185B (en) | 2016-08-22 | 2016-08-22 | Concrete microdilatancy mineral admixture and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700179.0A CN106316185B (en) | 2016-08-22 | 2016-08-22 | Concrete microdilatancy mineral admixture and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN106316185A CN106316185A (en) | 2017-01-11 |
| CN106316185B true CN106316185B (en) | 2018-01-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2779157C1 (en) * | 2021-11-23 | 2022-09-05 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Shrinkproof compound for concrete mix |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139340A (en) * | 2017-05-18 | 2017-09-08 | 新疆北新路桥集团股份有限公司 | A kind of admixture production system and blending material manufacturing technique |
| CN112456837A (en) * | 2019-09-09 | 2021-03-09 | 罗定市宏泰建材有限公司 | Cement admixture and preparation method thereof |
| CN112456838A (en) * | 2019-09-09 | 2021-03-09 | 罗定市宏泰建材有限公司 | Composite admixture for concrete and preparation method thereof |
| CN112456839A (en) * | 2019-09-09 | 2021-03-09 | 罗定市宏泰建材有限公司 | Industrial waste residue crushing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401607A (en) * | 2002-07-25 | 2003-03-12 | 中国建筑材料科学研究院 | Composite low-heat-release high-active superfine powder concrete admixture and making method thereof |
| CN102633461A (en) * | 2012-03-22 | 2012-08-15 | 内蒙古科技大学 | Composite gel material and preparation method thereof |
| CN103803825A (en) * | 2013-12-20 | 2014-05-21 | 江苏苏隆水泥有限公司 | Concrete additive |
-
2016
- 2016-08-22 CN CN201610700179.0A patent/CN106316185B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401607A (en) * | 2002-07-25 | 2003-03-12 | 中国建筑材料科学研究院 | Composite low-heat-release high-active superfine powder concrete admixture and making method thereof |
| CN102633461A (en) * | 2012-03-22 | 2012-08-15 | 内蒙古科技大学 | Composite gel material and preparation method thereof |
| CN103803825A (en) * | 2013-12-20 | 2014-05-21 | 江苏苏隆水泥有限公司 | Concrete additive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2779157C1 (en) * | 2021-11-23 | 2022-09-05 | Публичное Акционерное Общество "Новолипецкий металлургический комбинат" | Shrinkproof compound for concrete mix |
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| Publication number | Publication date |
|---|---|
| CN106316185A (en) | 2017-01-11 |
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