CN104045253B - A kind of slag additive and its production and use - Google Patents
A kind of slag additive and its production and use Download PDFInfo
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- CN104045253B CN104045253B CN201310079365.3A CN201310079365A CN104045253B CN 104045253 B CN104045253 B CN 104045253B CN 201310079365 A CN201310079365 A CN 201310079365A CN 104045253 B CN104045253 B CN 104045253B
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Abstract
The invention belongs to building material technical field, relate to a kind of slag additive and its production and use, this slag additive is made up of the component that comprises following percentage by weight: ethylene glycol 5～50%, diethylene glycol (DEG) 5～30%, glycerine 10～50%, lithium sulfate 10～50%, sodium sulphate 0.1～5%, sodium sulfocyanate 0.1～5%, NaOH 1～10%, water 15～95%; Its addition is 0.1%～0.5% of slag quality. Slag additive of the present invention can improve slag 7 days active 10～15%, 28 days active 5～10%.
Description
Technical field
The invention belongs to building material technical field, relate to a kind of slag additive and its production and use.
Background technology
Along with China's economic development, the energy and environmental problem become the focus that people pay close attention to gradually. China is building materials industry big country,Especially cement and concrete industry are very large on resources and environment impact. According to statistics, every production 1t cement, need to consume about 1.2t stoneLime stone, 150kg standard coal discharge about 0.87tCO simultaneously2. In global range, cement industry is to the CO discharging in atmosphere2Account for total7% left and right of discharge capacity. Therefore in ensureing economic construction sane development, should focus on reduction energy consumption and the guarantor of building material industryProtect environmental problem.
Accessory substance when slag is the blast furnace process pig iron is fluxed by soil property composition and the lime stone of iron ore at 1400～1500 DEG CThe industrial residue that agent melt compounded forms. Slag, with its potential hydraulicity, can be used as cement mixture and concrete admixtureReplace grog and cement, there is obvious economic benefit and environmental benefit, save the energy, reduce CO2Discharge and play protection ringThe effect in border. Meanwhile, as the supplementary cementitious material of high-quality, its technology business also can not be ignored, as reduced the heat of hydration, improvementHigh, high temperature resistant and good endurance of workability, pore structure, later strength etc.
But due to the introducing of slag, Hydration, the strength development of cementitious material system all change, especially when slag is mixedMeasure when larger, the early strength of system can obviously decline and can not reach mechanical performance index. In order to solve the activity excitation of slagProblem, has means such as physical excitation, chemi-excitation activity, but from structure durability and economic feasibility, all can notWell meet the demands. Therefore it is very necessary studying durable slag activation reinforcing agent reliable, economical rationality.
Summary of the invention
The defect the object of the invention is to for overcoming prior art provides a kind of slag additive and preparation method thereof and purposes.
For achieving the above object, the present invention is by the following technical solutions:
The slag additive that the present invention proposes, this activation reinforcing agent by ethylene glycol, diethylene glycol (DEG), glycerine, lithium sulfate, sodium sulphate,Sodium sulfocyanate, NaOH composition.
A kind of slag additive, made by the component that comprises following percentage by weight:
Described ethylene glycol is preferably 2～18%.
Described diethylene glycol (DEG) is preferably 1～15%.
Described glycerine is preferably 2～13%.
Described lithium sulfate is preferably 1～13%.
Described sodium sulphate is preferably 2～5%.
Described sodium sulfocyanate is preferably 1～15%.
Described NaOH is preferably 1～5%.
A preparation method for above-mentioned slag additive, comprises the following steps:
(1) take the raw material of following percentage by weight by said ratio: ethylene glycol 1～20%, diethylene glycol (DEG) 1～20%, the third threeAlcohol 1～20%, lithium sulfate 0.5～15%, sodium sulphate 0.5～5%, sodium sulfocyanate 0.5～18%, NaOH 0.5～10%,Water 15～95%;
(2) above-mentioned raw materials mixing and stirring is obtained to slag and activate reinforcing agent.
Described slag additive activates the purposes of reinforcing agent as slag. Above-mentioned slag activates reinforcing agent as improving slag activityIndex also can be for using slag as the cement of composite material or using slag to provide stable intensity to send out as the concrete of admixtureThe application of exhibition and durable safety guarantee.
The addition of described slag additive is 0.1%～0.5% of slag quality.
Water reducer of the present invention is white liquid.
The present invention, compared with existing similar techniques, has following major advantage:
1. this slag activation reinforcing agent can significantly improve the vivacity of slag, can improve 7 days vivacities 10～15%, can carryHigh 28 days vivacities 5～12%.
2. it is flexible that this slag activates reinforcing agent using method, both can when grinding, add also and can after grinding, mix outward.
3. this slag activates reinforcing agent and has grinding-aid effect concurrently, can increase specific area 8～18m2/kg。
This slag activate reinforcing agent low alkali, low-sulfur, without chlorine. Durability for cement or won ton has no adverse effect.
Detailed description of the invention
Further illustrate the present invention below in conjunction with embodiment.
Embodiment 1
Take each component raw material by following proportioning: ethylene glycol: 17%, diethylene glycol (DEG): 14%, glycerine: 12%, lithium sulfate 12%,Sodium sulphate: 2%, sodium sulfocyanate: 15%, NaOH: 5%, water 23%; Mixing and stirring obtains slag and activates enhancingAgent.
The addition that the slag additive that the present embodiment makes activates reinforcing agent as slag is 0.1% of slag quality.
Embodiment 2
Take each component raw material by following proportioning: ethylene glycol: 8%, diethylene glycol (DEG): 2%, glycerine: 2%, lithium sulfate 6%, sulphurAcid sodium: 3%, sodium sulfocyanate: 10%, NaOH: 3%, water 66%; Mixing and stirring obtains slag and activates reinforcing agent.
The addition that the slag additive that the present embodiment makes activates reinforcing agent as slag is 0.3% of slag quality.
Embodiment 3
Take each component raw material by following proportioning: ethylene glycol: 3%, diethylene glycol (DEG): 7%, glycerine: 6%, lithium sulfate 2%, sulphurAcid sodium: 5%, sodium sulfocyanate: 4%, NaOH: 2%, water 71%; Mixing and stirring obtains slag and activates reinforcing agent.
The addition that the slag additive that the present embodiment makes activates reinforcing agent as slag is 0.5% of slag quality.
Use the prepared slag of above-mentioned 3 embodiment to activate reinforcing agent, require to carry out cement mortar according to GB/T17671-1999Test. Calculate the activity index of slag according to GB/T18046-2008. Gained cement mortar strength and activity index result are as following table:
Table 1 shows: used special activation reinforcing agent of the present invention, 7 days activity indexs of slag improve 10～14%, 28 daysActivity index improves 5～9%.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art. Be familiar withThe personnel of art technology obviously can easily make various amendments to these embodiment, and should General Principle described hereinUse in other embodiment and needn't pass through performing creative labour. Therefore, the invention is not restricted to the embodiment here, this area skillArt personnel are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be at protection model of the present inventionWithin enclosing.
Claims (10)
1. a slag additive, is characterized in that: be made up of the component that comprises following percentage by weight:
2. slag additive according to claim 1, is characterized in that: the percentage by weight of described ethylene glycol is 2～18%;
Or the percentage by weight of described diethylene glycol (DEG) is 1～15%.
3. slag additive according to claim 1, is characterized in that: the percentage by weight of described glycerine is 2～13%.
4. slag additive according to claim 1, is characterized in that: the percentage by weight of described lithium sulfate is 1～13%.
5. slag additive according to claim 1, is characterized in that: the percentage by weight of described sodium sulphate is 2～5%.
6. slag additive according to claim 1, is characterized in that: the percentage by weight of described sodium sulfocyanate is 1～15％。
7. slag additive according to claim 1, is characterized in that: the percentage by weight of described NaOH is 1～5％。
8. a preparation method for arbitrary described slag additive in claim 1-7, is characterized in that: comprise the following steps:
(1) take following raw material by arbitrary described proportioning in claim 1-7: ethylene glycol, diethylene glycol (DEG), glycerine, sulfuric acidLithium, sodium sulphate, sodium sulfocyanate, NaOH, water;
(2), by above-mentioned raw materials mixing and stirring, obtain slag and activate reinforcing agent.
9. in a claim 1-7, arbitrary described slag additive activates the purposes of reinforcing agent as slag.
10. purposes according to claim 9, is characterized in that: the addition of described slag additive is slag quality0.1％～0.5％。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079365.3A CN104045253B (en) | 2013-03-13 | 2013-03-13 | A kind of slag additive and its production and use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079365.3A CN104045253B (en) | 2013-03-13 | 2013-03-13 | A kind of slag additive and its production and use |
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| Publication Number | Publication Date |
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| CN104045253A CN104045253A (en) | 2014-09-17 |
| CN104045253B true CN104045253B (en) | 2016-05-18 |
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| CN201310079365.3A Expired - Fee Related CN104045253B (en) | 2013-03-13 | 2013-03-13 | A kind of slag additive and its production and use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101713828B1 (en) * | 2014-11-04 | 2017-03-10 | (주)에스엠테크 | Cementless promotion-type admixture, and cementless composition comprising it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575185A (en) * | 2009-06-19 | 2009-11-11 | 徐彬 | High-efficiency compound slag-grinding aid of beet waste mash compound and production method thereof |
| CN101597655A (en) * | 2009-07-08 | 2009-12-09 | 南京永能新材料有限公司 | A kind of blast furnace slag liquid grinding aid and preparation method thereof |
| CN102226224A (en) * | 2011-04-21 | 2011-10-26 | 江苏锋泰建材科技有限公司 | Slag grinding aid and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575185A (en) * | 2009-06-19 | 2009-11-11 | 徐彬 | High-efficiency compound slag-grinding aid of beet waste mash compound and production method thereof |
| CN101597655A (en) * | 2009-07-08 | 2009-12-09 | 南京永能新材料有限公司 | A kind of blast furnace slag liquid grinding aid and preparation method thereof |
| CN102226224A (en) * | 2011-04-21 | 2011-10-26 | 江苏锋泰建材科技有限公司 | Slag grinding aid and preparation method thereof |
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| CN104045253A (en) | 2014-09-17 |
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Granted publication date: 20160518 Termination date: 20190313 |