CN101560079A - High-performance autoclaved brick prepared by silt-fly ash autoclave method - Google Patents
High-performance autoclaved brick prepared by silt-fly ash autoclave method Download PDFInfo
- Publication number
- CN101560079A CN101560079A CNA2008102313382A CN200810231338A CN101560079A CN 101560079 A CN101560079 A CN 101560079A CN A2008102313382 A CNA2008102313382 A CN A2008102313382A CN 200810231338 A CN200810231338 A CN 200810231338A CN 101560079 A CN101560079 A CN 101560079A
- Authority
- CN
- China
- Prior art keywords
- silt
- fly ash
- silt particle
- brick
- yellow river
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
Abstract
The invention discloses high-performance autoclaved bricks prepared by a silt-fly ash autoclave method. In the method, silt and fly ash are used as major raw materials, and aggregates and activators as subsidiary materials. The mass percentage of the components is: 19-58% of silt; 19-58% of fly ash, 10-25% of aggregates; and 8-13% of activators. The load-bearing bricks are produced by taking the Yellow River silt and the fly ash as major raw materials under conditions of a traditional autoclave process. Compressive strength and folding strength of the obtained load-bearing bricks for buildings reach 23.5MPa and 4.80MPa respectively, and the compressive strength of the bricks reaches 21.7MPa after freeze thawing. The production process is simple without high temperature calcination, and has low energy consumption and low pollution. Taking the Yellow River silt as a raw material to produce novel building materials such as load-bearing bricks can not only broaden the raw material origins for wall materials, but also change wastes into valuables, dredge river channels, prevent flood damages, and change damages into benefits, thus providing a new way to make use of the Yellow River silt and the fly ash.
Description
Technical field
The invention belongs to new material technology field, what relate generally to is a kind of high-performance autoclaved brick that adopts silt particle-coal ash autoclaved method preparation.Adopt the Yellow River silt particle-coal ash autoclaved legal system to be equipped with wall body building material.
Background technology
The materials for wall output of China leaps into the front ranks of the world.At present, the build a wall production method of brick mainly contains sintering process, autoclave method.Sintering process will consume a large amount of energy, and the problem of environmental pollution that exists exhaust gas emission to bring.Autoclave method because of need not high-temperature calcination, simple, the non-exhaust emission of production process, plurality of advantages such as energy-conservation become the main method that the brick of building a wall is produced gradually.
China completely forbids the use clay brick in order to protect agriculture arable land and energy-saving and emission-reduction effectively.Therefore, all kinds of solid waste of the numerous and confused research and utilization in various places are produced materials for wall and are come the instead of clay brick, serve as maximum with industrial residue-fly ash autoclaved brick especially.Yet utilizing all kinds of solid waste to produce building brick has following deficiency:
(1) all types of industries waste residue chemical component fluctuation is very big, produces and should not control when utilizing, and quality fluctuation is bigger;
(2) removing outer other industrial residues (as: slag, slag, coal gangue, basalt, building waste etc.) of flyash, red mud needs fragmentation, grinding to handle, and increase equipment, makes process complications and increase one-time investment;
(3) as the limited amount and the dispersion of all types of industries solid waste of secondary resource.Though 1,000,000,000 tons in annual generating of China and cogeneration consumption raw coal, the discharging powdered coal cinder up to 3.0 hundred million tons about, because the continuous development of science and technology and the factors such as adjustment of national energy-saving and emission-reduction policy, approach that secondary resource utilizes and industry (cement mill with their make mixed material, building is used for adulterant, road construction is used for bed course or the like) a lot, for example: certain new industry flyash brick in Henan Province has reached 20,000,000,000 at present, can utilize 4,000,000 tons/year flyash approximately.Its development will inevitably produce a kind of among following two kinds of results: the one, and price goes up significantly, increases product cost and price; The 2nd, also can reduce until exhaustion gradually as all types of industries solid waste of secondary resource.
Therefore, seeking new resource, to produce building brick extremely urgent.The Yellow River sediment transport amount occupies first place, all rivers, the world, is many silt particles world-famous river, the historical merits and demerits in the Yellow River, how owing to silt particle, many sand of the Yellow River, a side and moulded wide Huang, Huaihe River, extra large llanura makes it to become the central area of multiplying and living in Chinese nation's evolution; The opposing party and, a copious, rapid flow of words state that forms behind the plains region of flowing through also once brought serious flood disaster to people across the Straits.For these years, the Yellow River is with many sand, easily silt, apt to change being celebrated, and its silt particle the complex nature of the problem and difficulty of governance can be rated as the first in the world, and the silt particle problem is the very crux of harnessing the Yellow River, and the gain and loss that silt particle is handled over thousands of years, becomes the yellow river regulation key of success.To from evil, see its profit, should fully administer and utilization rationally, could produce positive effect.
Summary of the invention
Task of the present invention is exactly to propose a kind of high-performance autoclaved brick that adopts silt particle-coal ash autoclaved method preparation.Utilize silt particle instead of clay resource, widened the raw material approach of materials for wall, the wall body brick that adopts traditional autoclave method to produce is not only cheap, and have good alkaline-resisting, salt resistant character and anti-freezing property, over-all properties is better.
The present invention realizes that the technical scheme that above-mentioned purpose adopts is: with silt particle, flyash is main raw material, and aggregate, exciting agent are auxiliary material, and the mass percent of each component is: silt particle: 19-58%; Flyash: 19-58%; Aggregate: 10-25%; Exciting agent 8-13%.
Exciting agent of the present invention can be lime and gypsum, can also be caustic soda, S-WAT, villaumite etc.Because caustic soda, S-WAT cost height, the perishable reinforcing bar of villaumite is so select for use lime cheap and easy to get and gypsum to make exciting agent.
Aggregate of the present invention can be a slag, also available useless brickbat, slag etc., because slag cost height, so slag is cheap and easy to get so select it.In silt particle-coal ash mixed material, mix enough slags that gathers materials,, make adobe when compacting, avoid producing the layering crack to increase ventilation property.But aggregate content can not be too high, and too high meeting descends brick ultimate compression strength, and content can not be too low, and too low meeting descends the brick folding strength, through test in a large number, determines that range of choice is 10-25%.
Silt particle of the present invention is the Yellow River silt particle, and main component is an aluminosilicate, and it can generate hydrated silicate and aquation aluminate etc. with exciting agent under autoclaved condition, and makes adobe obtain higher-strength.But silt content can not be too low, difficult forming during too low production, and content can not be too high, and too high meeting makes the strength degradation of brick.Through a large amount of tests, determine that range of choice is 19-58%.
Flyash of the present invention mainly is made up of xln, vitreum.In xln, quartz and mullite are arranged.Vitrea main component is Al
2O
3And SiO
2Aluminosilicate glass body (SiO
2With Al
2O
3Total content is more than 60%) be the main moiety of flyash, also be the main source of flyash activity, flyash can generate hydrated silicate and aquation aluminate etc. under certain condition with exciting agent, and makes adobe obtain intensity.But flyash content can not be too high, difficult forming during too high production, and content can not be too low, and too low meeting makes the strength degradation of brick.Through a large amount of tests, determine that range of choice is 19-58%.
It is the main material production heavy-load bearing brick that the present invention steams under the compression technology condition with the Yellow River silt particle, flyash in tradition, and the ultimate compression strength of the building bearing brick that makes reaches 23.5MPa, and folding strength reaches 4.80MPa.Ultimate compression strength reaches 21.7MPa after the freeze thawing.Production technique is simple, need not high-temperature calcination, and energy consumption is low, pollutes little.Adopt the Yellow River silt particle as the raw material of producing New Building Materials such as heavy-load bearing brick, not only widened the raw material approach of materials for wall, and can turn waste into wealth, dredging river, prevent water damage, turn bane into boon.For the Yellow River silt particle and utilization of coal ash find a new way.
The present invention adopts orthogonal experiment to determine the optimal processing parameter that autoclaved brick is produced, and carries out commerical test afterwards, and product is carried out Performance Detection.Specific as follows:
Orthogonal test:
The principal element that influences the Yellow River silt particle-fly ash autoclaved brick performance has: the Yellow River silt particle and flyash ratio, exciting agent volume, aggregate volume, moulding moisture, forming pressure, ageing mixture time etc.
It is exciting agent that lime and gypsum are selected in this experiment for use, and by orthogonal experiment, drawing the volume range of choice is lime 7-12%, and gypsum 1-3% fixes its volume with empirical value.According to early stage and forefathers' experiment situation determine above-mentioned except that the exciting agent volume five processing parameters also choose five levels respectively and study.
The orthogonal table gauge outfit designs as table 1:
The design of table 1 orthogonal table gauge outfit
Testing sequence: batching → stirring → bundle material → stirring → compression moulding → steam-cured → Performance Detection
Test-results sees Table 2
Table 2 orthogonal experiments
By orthogonal test as can be known, intensity is filled a prescription preferably and is A4B4C2D5E3.
Commerical test: choose the better prescription of intensity and carry out commerical test in four directions, Yanshi, Luoyang City Building Materials Factory.Press steaming still parameter as follows:
1) heats up: 2～3h.
2) constant temperature and pressure 1.4MPa, temperature are 175～185 ℃,, constant temperature time 4～6h.
3) cooling 2～3h.
Product detects through Luoyang gold mirror construction quality inspection center, reaches the MU20 brick requirement of building a wall.
As shown in Figure 1, the XRD figure spectrum shows that the Yellow River silt particle-flyash is pressed hydrated products such as having generated the vigorous mullite of holder, hydrated calcium silicate, calcium aluminosilicate hydrate through steaming, and makes goods have certain intensity.
Conclusion: utilize the Yellow River silt particle and flyash under autoclaved condition, can make the MU20 brick of building a wall.
Description of drawings
Fig. 1 is the Yellow River of the present invention silt particle-fly ash autoclaved brick XRD figure.
Embodiment
Used each material chemical component of the present invention is as shown in table 3:
The chemical ingredients of table 3 raw material (%)
Embodiment 1
Present embodiment is a main raw material with silt particle, flyash, and lime and gypsum are exciting agent, and slag is an aggregate.Wherein the mass percent of silt particle, flyash, slag and exciting agent is respectively 34.0%, 34.0%, 20.0%, 12.0%.Silt particle is taken from Luoyang City, middle reaches, the Yellow River domestic Mengjin section; Flyash is that first Yangshan, Luoyang City power plant produces, and the 0.08mm square hole sieve tails over 23.67%, and slag is crushed to particle diameter 2-5mm from Yiyang, Luoyang City dragon plumage power plant; The chemical activator fineness is that 0.08 μ m tails over＜10%.
Embodiment 2
Present embodiment is a main raw material with silt particle, flyash, and lime and gypsum are exciting agent, and slag is an aggregate.。Wherein the consumption of silt particle, flyash, slag and exciting agent is respectively 22.7%, 45.3%, 20.0%, 12.0%.Silt particle is taken from Luoyang City, middle reaches, the Yellow River domestic Mengjin section; Flyash is that first Yangshan, Luoyang City power plant produces, and the 0.08mm square hole sieve tails over 18.02%; Slag is crushed to particle diameter 2-5mm from Yiyang, Luoyang City dragon plumage power plant; The chemical activator fineness is that 0.08 μ m tails over＜10%.
Embodiment 3
Present embodiment is a main raw material with silt particle, flyash, and lime and gypsum are exciting agent, and slag is an aggregate.。Wherein the consumption of silt particle, flyash, slag and exciting agent is respectively 20.0%, 58.0%, 10.0%, 12.0%.Silt particle is taken from Luoyang City, middle reaches, the Yellow River domestic Mengjin section; Flyash is that first Yangshan, Luoyang City power plant produces, and the 0.08mm square hole sieve tails over 10.80%; Slag is crushed to particle diameter 2-5mm from Yiyang, Luoyang City dragon plumage power plant; The chemical activator fineness is that 0.08 μ m tails over＜10%.
The foregoing description all adopts traditional unburned autoclave method to produce wall body brick.
Claims (6)
1, a kind of high-performance autoclaved brick that adopts the preparation of silt particle-coal ash autoclaved method is characterized in that: be to be main raw material with silt particle, flyash, aggregate, exciting agent are auxiliary material, and the mass percent of each component is: silt particle: 19-58%; Flyash: 19-58%; Aggregate: 10-25%; Exciting agent: 8-13%.
2, the high-performance autoclaved brick of employing silt particle according to claim 1-coal ash autoclaved method preparation, it is characterized in that: described silt particle is the Yellow River silt particle.
3, the high-performance autoclaved brick of employing silt particle according to claim 1-coal ash autoclaved method preparation, it is characterized in that: described exciting agent is lime and gypsum.
4, the high-performance autoclaved brick of employing silt particle according to claim 1-coal ash autoclaved method preparation, it is characterized in that: described exciting agent is caustic soda or S-WAT or villaumite.
5, the high-performance autoclaved brick of employing silt particle according to claim 1-coal ash autoclaved method preparation, it is characterized in that: described aggregate is a slag.
6, the high-performance autoclaved brick of employing silt particle according to claim 1-coal ash autoclaved method preparation is characterized in that: described aggregate is useless brickbat or slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102313382A CN101560079B (en) | 2008-12-11 | 2008-12-11 | High-performance autoclaved brick prepared by silt-fly ash autoclave method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102313382A CN101560079B (en) | 2008-12-11 | 2008-12-11 | High-performance autoclaved brick prepared by silt-fly ash autoclave method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101560079A true CN101560079A (en) | 2009-10-21 |
| CN101560079B CN101560079B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102313382A Expired - Fee Related CN101560079B (en) | 2008-12-11 | 2008-12-11 | High-performance autoclaved brick prepared by silt-fly ash autoclave method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771799A (en) * | 2014-01-02 | 2014-05-07 | 大连理工大学 | Modified soft sandstone baking-free brick |
| CN104003662A (en) * | 2014-05-20 | 2014-08-27 | 潜山县新型工程建筑材料有限公司 | Autoclaved hollow lime sand brick |
| CN104291766A (en) * | 2014-08-20 | 2015-01-21 | 临汾市尧都区宏基粉煤灰制砖厂 | Steam-pressing brisk and preparation technology thereof |
| CN106145847A (en) * | 2015-04-03 | 2016-11-23 | 安徽中城新型建材有限公司 | A kind of autoclaved fly ash brick and processing technology thereof |
| CN106145846A (en) * | 2015-04-03 | 2016-11-23 | 安徽中城新型建材有限公司 | A kind of autoclaved fly ash brick and processing technology thereof |
| CN109251003A (en) * | 2018-11-23 | 2019-01-22 | 黄河勘测规划设计有限公司 | Non-burning brick method is prepared using shale Extra-fine sand |
| CN111172835A (en) * | 2020-02-18 | 2020-05-19 | 深圳市科建建设集团有限公司 | Manufacturing and mounting method of building energy-saving floor tile |
| CN115073109A (en) * | 2022-07-29 | 2022-09-20 | 黄河水利委员会黄河水利科学研究院 | Lake and reservoir sediment autoclaved baking-free brick and preparation method thereof |
-
2008
- 2008-12-11 CN CN2008102313382A patent/CN101560079B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771799A (en) * | 2014-01-02 | 2014-05-07 | 大连理工大学 | Modified soft sandstone baking-free brick |
| CN103771799B (en) * | 2014-01-02 | 2015-12-30 | 大连理工大学 | A kind of modification feldspathic sandstone is non-burning brick |
| CN104003662A (en) * | 2014-05-20 | 2014-08-27 | 潜山县新型工程建筑材料有限公司 | Autoclaved hollow lime sand brick |
| CN104291766A (en) * | 2014-08-20 | 2015-01-21 | 临汾市尧都区宏基粉煤灰制砖厂 | Steam-pressing brisk and preparation technology thereof |
| CN106145847A (en) * | 2015-04-03 | 2016-11-23 | 安徽中城新型建材有限公司 | A kind of autoclaved fly ash brick and processing technology thereof |
| CN106145846A (en) * | 2015-04-03 | 2016-11-23 | 安徽中城新型建材有限公司 | A kind of autoclaved fly ash brick and processing technology thereof |
| CN106145847B (en) * | 2015-04-03 | 2019-04-09 | 安徽中城新型建材有限公司 | A kind of autoclaved fly ash brick and its manufacture craft |
| CN106145846B (en) * | 2015-04-03 | 2019-04-09 | 安徽中城新型建材有限公司 | A kind of autoclaved fly ash brick and its manufacture craft |
| CN109251003A (en) * | 2018-11-23 | 2019-01-22 | 黄河勘测规划设计有限公司 | Non-burning brick method is prepared using shale Extra-fine sand |
| CN109251003B (en) * | 2018-11-23 | 2021-06-29 | 黄河勘测规划设计研究院有限公司 | Method for preparing baking-free brick by using argillaceous powder fine sand |
| CN111172835A (en) * | 2020-02-18 | 2020-05-19 | 深圳市科建建设集团有限公司 | Manufacturing and mounting method of building energy-saving floor tile |
| CN115073109A (en) * | 2022-07-29 | 2022-09-20 | 黄河水利委员会黄河水利科学研究院 | Lake and reservoir sediment autoclaved baking-free brick and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN101560079B (en) | 2012-07-04 |
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Granted publication date: 20120704 Termination date: 20121211 |