CN104370484A - Early strength type high mixing quantity activation ultrafine fly ash cement - Google Patents
Early strength type high mixing quantity activation ultrafine fly ash cement Download PDFInfo
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- CN104370484A CN104370484A CN201310375579.5A CN201310375579A CN104370484A CN 104370484 A CN104370484 A CN 104370484A CN 201310375579 A CN201310375579 A CN 201310375579A CN 104370484 A CN104370484 A CN 104370484A
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- Prior art keywords
- cement
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- activation
- fly ash
- clinker
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Abstract
The invention discloses early strength type high mixing quantity activation ultrafine fly ash cement which can solve the problem of turning waste into wealth and reasonable application of fly ash, and is characterized in that: weighing 96% of clinker and 4% of desulfurization gypsum, adding 0.05% of a grinding assistant, grinding in a clinker grinding mill, then entering into a cement bunker by an elevator, conveying original ash into an ultrafine ball mill for grinding into powder, adding 0.8% of an activator and 0.8% of a powder water reducer for grinding together into powder, entering into an ultrafine fly ash bunker by an elevator, using a spiral conveyor for conveying pure clinker cement and ultrafine fly ash in the weight ratio of 30-40% of pure clinker Portland cement and 60-70% of activation ultrafine fly ash for production of 32.5 early strength type cement with the 28 day compressive strength over 35MPa, and using 50% of pure clinker Portland cement and 50% of activation ultrafine fly ash for production of 42.5 early strength type cement with the 28 day compressive strength over 43MPa; the early strength type high mixing quantity activation ultrafine fly ash cement has the advantage of fast growth of early strength, high early strength, good workability, high durability, large growth range of post strength and low cost, and is suitable for application of architectural engineering.
Description
Art:
The invention belongs to the technical field that building latex material makes, be specifically related to high the mixing of a kind of early-strength type and activate superfined flyash cement, be adapted to construction work application.
Background technology:
Cement, as hydraulic cementing materials, due to the physicochemical property of its excellence, has just become building field important and be difficult to the material of construction that substitutes since coming out.The economy of China obtains high speed development, and average annual GDP, up to 9.4%, achieves remarkable achievement since reform and opening-up! While economic construction, the capital construction fast developments such as road engineering, water conservancy and hydropower, urban renewal and expansion, therefore for indispensable material of construction---cement demand all could increase substantially every year! But, cement, in the process of producing, wastes a large amount of resources and the energy, side by side the greenhouse gases of amplification quantity and dust, serious environment pollution, the demand for development of this and China and even whole world Nonrenewable resources " rareization " present situation and construction " amphitypy " society is year by year runed counter to.Ton cement clinker discharges 0.51 ton of CO when producing
2, coal fire discharged 0.37 ton of CO
2, need to consume a large amount of Nonrenewable resources such as Wingdale, coal simultaneously, in the process of these resources of exploitation, great destruction also caused to ecotope.Therefore, carry out Substitute For Partial grog with raw materials such as levigate slag powders, flyash, natural volcanic ash, just become the important measures of energy-saving and emission-reduction.Annual China Coal fired power station year discharge coal ash reaches more than 300,000,000 ton, utilization ratio wretched insufficiency, and a large amount of flyash is piled up and not only taken a large amount of arable land, also contaminate environment.How to prepare the flyash of high effector function, improve the volume of flyash in cement, reduce grog consumption, for minimizing industrial residue to the pollution of environment, turn harm into good, turn waste into wealth and save energy and natural resources etc., all there is profound significance.
Summary of the invention:
Object of the present invention is exactly for overcoming above deficiency, there is provided a kind of by carrying out superfine pulverizing process to former flyash, physical excitation and chemi-excitation, improve flyash activity, mix in pure clinker aggregate portland cement, the height produced is mixed active fly ash cement and is had doping quantity of fly ash greatly, and early strength increases fast, and early strength is high, workability is good, weather resistance is high, and later strength increasing degree is large, and the early-strength type that cost is low is high mixes activation superfined flyash cement.
Early-strength type of the present invention is high mixes activation superfined flyash cement, core content is by physics grinding and chemi-excitation solid waste coal ash activity, greatly improve its volume in cement, improve cement early strength, reduce production cost, the increase of doping quantity of fly ash is to the comprehensive utilization of resources of solid waste and energy-saving and cost-reducingly all have certain beneficial effect.It is characterized in that employing material mix proportion weight percent is: with pure clinker aggregate portland cement 30 ~ 40%, activation superfined flyash 60 ~ 70% produces 32.5 early-strength type cement, and within 28 days, ultimate compression strength is more than 35MPa.With pure clinker aggregate portland cement 50%, activation superfined flyash 50% produces 42.5 early-strength type cement, and within 28 days, ultimate compression strength is more than 43MPa.In formula, raw materials technical parameter requires as follows:
Pure clinker aggregate portland cement: proportioning is 96% grog, 4% desulfurated plaster, 0.05% grinding aid, enters clinker grinding mill and carries out grinding after weighing, product fineness requires that 0.08mm tails within 2%, and specific surface area is greater than 380m
2/ kg, between consumptive use of water normal consistence 24% ~ 28%, within 28 days, ultimate compression strength is more than 52.5MPa.
Activation superfined flyash: superfine pulverizing process is carried out to the former ash of satisfied national three grades of flyash or second class powered coal ash, the weight percent adding accurate weighing in grinding be the exciting agent of 0.8%, 0.8% powder water reducer, the superfined flyash that grinding goes out requires that 0.045mm tails within 1%, and specific surface area reaches 680m
2/ more than kg.Its production technique is as follows: weigh 96% grog, and 4% desulfurated plaster adds 0.05% grinding aid, enters clinker grinding mill and carries out grinding, then enter cement silo by lift.Former ash is delivered to ultra-fine ball mill grinding, add the exciting agent of 0.8%, 0.8% powder water reducer carry out grinding together, enter superfined flyash storehouse by lift.Then with worm conveyor the superfined flyash after pure cement clinker and activation mixed according to required cement mark ratio and be delivered to stockyard, be packaged into bag or in bulkly can dispatch from the factory.
Early-strength type of the present invention is high mixes activation superfined flyash cement, core content is by physics grinding and chemi-excitation solid waste coal ash activity, greatly improve its volume in cement, improve cement early strength, reduce production cost, the increase of doping quantity of fly ash is to the comprehensive utilization of resources of solid waste and energy-saving and cost-reducingly all have certain beneficial effect.Having early strength increases fast, and early strength is high, and workability is good, and weather resistance is high, and later strength increasing degree is large, the advantage that cost is low.
Embodiment:
Embodiment 1
Adopt weighing 96% grog, 4% desulfurated plaster, adds 0.05% grinding aid, enters clinker grinding mill and carries out grinding, then enter cement silo by lift.Former ash is delivered to ultra-fine ball mill grinding, add the exciting agent of 0.8%, 0.8% powder water reducer carry out grinding together, require that fineness 0.08mm tails within 2%, specific surface area is greater than 380m
2/ kg, between consumptive use of water normal consistence 24% ~ 28%, enter superfined flyash storehouse by lift, then will with pure clinker aggregate portland cement 50% with worm conveyor, activation superfined flyash 50% produces 42.5 early-strength type cement, and within 28 days, ultimate compression strength is more than 43MPa.
Embodiment 2
Adopt weighing 96% grog, 4% desulfurated plaster, adds 0.05% grinding aid, enters clinker grinding mill and carries out grinding, then enter cement silo by lift.Former ash is delivered to ultra-fine ball mill grinding, add the exciting agent of 0.8%, 0.8% powder water reducer carry out grinding together, require that fineness 0.08mm tails within 2%, specific surface area is greater than 380m
2/ kg, between consumptive use of water normal consistence 24% ~ 28%, enters superfined flyash storehouse by lift, and with pure clinker aggregate portland cement 30 ~ 40%, activation superfined flyash 60 ~ 70% produces 32.5 early-strength type cement, and within 28 days, ultimate compression strength is more than 35MPa.
Claims (3)
1. early-strength type is high mixes activation superfined flyash cement, it is characterized in that adopting weighing 96% grog, 4% desulfurated plaster, add 0.05% grinding aid, enter clinker grinding mill and carry out grinding, then cement silo is entered by lift, former ash is delivered to ultra-fine ball mill grinding, add the exciting agent of 0.8%, the powder water reducer of 0.8% carries out grinding together, superfined flyash storehouse is entered by lift, then with worm conveyor by pure cement clinker and activation after superfined flyash, be by weight percentage: with pure clinker aggregate portland cement 30 ~ 40%, activation superfined flyash 60 ~ 70% produces 32.5 early-strength type cement, within 28 days, ultimate compression strength is more than 35MPa, with pure clinker aggregate portland cement 50%, activation superfined flyash 50% produces 42.5 early-strength type cement, within 28 days, ultimate compression strength is more than 43MPa.
2. the early-strength type according to right 1 is high mixes activation superfined flyash cement, it is characterized in that the proportioning of pure clinker aggregate portland cement is: 96% grog, 4% desulfurated plaster, 0.05% grinding aid, enter clinker grinding mill after weighing and carry out grinding, product fineness requires that 0.08mm tails within 2%, and specific surface area is greater than 380m
2/ kg, between consumptive use of water normal consistence 24% ~ 28%, within 28 days, ultimate compression strength is more than 52.5MPa.
3. the early-strength type according to right 1 is high mixes activation superfined flyash cement, it is characterized in that activating superfined flyash and will meet country's three grades of flyash or the former ash of second class powered coal ash carries out superfine pulverizing process, adding the per-cent that weighs in grinding is the exciting agent of 0.8%, the powder water reducer of 0.8%, the superfined flyash that grinding goes out requires that 0.045mm tails within 1%, and specific surface area reaches 680m
2/ more than kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310375579.5A CN104370484A (en) | 2013-08-16 | 2013-08-16 | Early strength type high mixing quantity activation ultrafine fly ash cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310375579.5A CN104370484A (en) | 2013-08-16 | 2013-08-16 | Early strength type high mixing quantity activation ultrafine fly ash cement |
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| CN104370484A true CN104370484A (en) | 2015-02-25 |
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| CN201310375579.5A Pending CN104370484A (en) | 2013-08-16 | 2013-08-16 | Early strength type high mixing quantity activation ultrafine fly ash cement |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105985039A (en) * | 2015-02-26 | 2016-10-05 | 华智节能(香港)有限公司 | Inorganic cementing material and preparation method thereof |
| CN107010854A (en) * | 2017-05-22 | 2017-08-04 | 山西大学 | A kind of high-strength cement of high fly as contained and preparation method thereof |
| CN110894148A (en) * | 2018-09-12 | 2020-03-20 | 天津志清建筑工程有限公司 | Adhesive waterproofing agent for building |
| CN112870584A (en) * | 2021-01-28 | 2021-06-01 | 山西大学 | Method for extinguishing fire and preventing reburning of coal-based solid waste in coal gangue dump |
| CN115180844A (en) * | 2022-06-15 | 2022-10-14 | 盐城市鼎力新材料有限公司 | Activated superfine fly ash doped cement and preparation method thereof |
| CN116675449A (en) * | 2023-04-10 | 2023-09-01 | 盐城工学院 | Activation of low-grade fly ash and cement material prepared from same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068555A (en) * | 1992-08-06 | 1993-02-03 | 登封电厂 | The prescription of pulverized fuel ash cement and production technique thereof |
| CN1468824A (en) * | 2002-07-16 | 2004-01-21 | 陈忠新 | Composite cement producing process with flyash in great mixed amount |
| CN101172801A (en) * | 2006-11-01 | 2008-05-07 | 中国矿业大学(北京) | High addition fly ash cement and method for producing the same |
-
2013
- 2013-08-16 CN CN201310375579.5A patent/CN104370484A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068555A (en) * | 1992-08-06 | 1993-02-03 | 登封电厂 | The prescription of pulverized fuel ash cement and production technique thereof |
| CN1468824A (en) * | 2002-07-16 | 2004-01-21 | 陈忠新 | Composite cement producing process with flyash in great mixed amount |
| CN101172801A (en) * | 2006-11-01 | 2008-05-07 | 中国矿业大学(北京) | High addition fly ash cement and method for producing the same |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105985039A (en) * | 2015-02-26 | 2016-10-05 | 华智节能(香港)有限公司 | Inorganic cementing material and preparation method thereof |
| CN105985039B (en) * | 2015-02-26 | 2019-03-01 | 华智节能(香港)有限公司 | A kind of inorganic coagulation material and preparation method thereof |
| CN107010854A (en) * | 2017-05-22 | 2017-08-04 | 山西大学 | A kind of high-strength cement of high fly as contained and preparation method thereof |
| CN110894148A (en) * | 2018-09-12 | 2020-03-20 | 天津志清建筑工程有限公司 | Adhesive waterproofing agent for building |
| CN112870584A (en) * | 2021-01-28 | 2021-06-01 | 山西大学 | Method for extinguishing fire and preventing reburning of coal-based solid waste in coal gangue dump |
| CN115180844A (en) * | 2022-06-15 | 2022-10-14 | 盐城市鼎力新材料有限公司 | Activated superfine fly ash doped cement and preparation method thereof |
| CN115180844B (en) * | 2022-06-15 | 2023-03-07 | 盐城市鼎力新材料有限公司 | Activated superfine fly ash doped cement and preparation method thereof |
| CN116675449A (en) * | 2023-04-10 | 2023-09-01 | 盐城工学院 | Activation of low-grade fly ash and cement material prepared from same |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150225 |