CN106431028A - Construction waste red brick powder and coal ash geopolymer material and preparation method thereof - Google Patents
Construction waste red brick powder and coal ash geopolymer material and preparation method thereof Download PDFInfo
- Publication number
- CN106431028A CN106431028A CN201510495535.5A CN201510495535A CN106431028A CN 106431028 A CN106431028 A CN 106431028A CN 201510495535 A CN201510495535 A CN 201510495535A CN 106431028 A CN106431028 A CN 106431028A
- Authority
- CN
- China
- Prior art keywords
- red brick
- sand
- brick powder
- flyash
- powder
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a construction waste red brick powder and coal ash geopolymer material and a preparation method thereof. The construction waste red brick powder and coal ash geopolymer material takes construction waste red brick powder and coal ash as main matrix raw materials, marine sand or artificial sand as an aggregate, solid water glass powder as an alkali activator, and metakaolin as an additive to prepare a cementing material of the construction waste red brick powder and coal ash geopolymer material. The construction waste red brick powder and coal ash geopolymer material is prepared from the raw materials by weight: 1-70% of the red brick powder, 1-80% of the coal ash, 1-96% of the marine sand or artificial sand, 1-20% of the solid water glass powder, 5-50% of water and 5-20% of the metakaolin, and the total weight percent of the red brick powder, the coal ash, the marine sand and artificial sand is 100%. The construction waste red brick powder and coal ash geopolymer material is prepared through the technical process of preparing, blending, forming, curing and drying. The construction waste red brick powder and coal ash geopolymer material is high in utilization ratio of the construction waste, low in energy consumption and simple in preparation process, produces no pollutants, and is an environmentally-friendly energy-saving and emission-reducing new technique.
Description
Technical field
The present invention relates to waste material of buildings red brick powder flyash geology polymer material and preparation method thereof, belong to Inorganic Non-metallic Materials and industrial solid castoff utilization technology field.
Background technology
Geo-polymer is a kind of alkalis excited inorganic gel material; in its preparation process, the ton discharge capacity of carbon dioxide is only the l/10 1/5 of Portland cement; it is a kind of environmental conservation construction materials that can substitute Portland cements in some places. the structure of geology polymer material and performance are affected by many factors, and its endogenous cause of ill mainly includes species and Si/M therein (M=K, the Na, Ca) ratio of exciting agent；Si/AI ratio in solid material sample；Also having solid-to-liquid ratio or the ratio of mud etc. exopathogenic factor is mainly the technological parameter in material preparation process, such as exciting agent digestion time, additive species, such as water reducer or superplasticizer, solid-liquid mix and blend time, forming method, conservation system etc..
Flyash is coal-burning power plant or the garbage of other coal combustion equipment discharge, is a kind of small dust of granule, the flyash of air storage can cause airborne dust, serious environment pollution under strong wind weather.Trickle powder can drift about to elsewhere with air, causes the atmospheric pollution of regional area；People breathes this air for a long time and can cause serious respiratory tract disease;Rainwater can pour water source flyash, affects surface water quality, the polluted underground water that even permeates the ground having;The heavy metal ion containing in flyash and radioactive substance can damage to vegetation and people and animals.Therefore, dispose the economic cost that flyash will pay costliness.Fine coal ash fouling has become as the obstacle of China's sustainable development source.Using the standby practical geology polymer material of coal ash for manufacturing, the pollution problem solving flyash is had very important significance.At present, more than 2.1 hundred million tons, burden is more than 1,000,000,000 tons for China's flyash annual emissions.The new technique of research high-efficiency resource recycling flyash is extremely urgent.
Substantial amounts of SiO is contained in flyash2、Al2O3There is with vitreous body etc. the granule of pozzolanic activity, there is potential chemism.In addition, flyash has very big specific surface energy, low-density, high osmosis and low compressibility, and these become the advantage of its preparation high intensity mineral polymer.Research shows that the reaction mechanism of flyash geo-polymer is as follows:First, Na2SiO3It is hydrolyzed into Na0H in aqueous, makes to contain substantial amounts of hydroxide ion in liquid phase, the pH value of solution raises.In the presence of hydroxide ion, the amorphous Si-O on fly ash grain surface and Al-O bond fission, hydroxide ion concentration is bigger, stronger to Si-O and Al mono- O key destruction, after Si-O and Al mono- O key destroys, is formed and is rich in silicon, aluminic acid oligomer.These oligomers occur polycondensation reaction to form ion cluster further, ultimately form network structure.Its chemical reaction equation is as follows：
Building castoff red brick powder is that the clay brick selected in waste material of buildings entered to crush, particle diameter that grinding is made is less than the fine powder of 75 m. the high speed development with China's building industry and the continuous acceleration of urbanization process, the discharge capacity of building castoff is increasing, reaching 1,500,000,000 tons within 2013. storing up of building castoff can take soil valuable in a large number, resource, building castoff enters, with rainwater, the salinization of soil that soil can cause soil, simultaneously also can polluted underground water, ecological environment is caused necessarily affect;The building castoff of air storage dispels with the wind in the weather being dried and can lead to air pollution in atmosphere and easily cause dust and sand weather. therefore how efficient utilization building castoff reduce its pollution to environment, more and more cause the great attention of people. and still underway and constantly have new progress using the research work of aspect to building castoff Rhizoma Begoniae Willsonii both at home and abroad at present.Building castoff Rhizoma Begoniae Willsonii is the silica-base material through high-temperature calcination, and it contains abundant active SiO2、AI2O3、Fe2O3, the composition such as CaO, under having alkali-activator effect, there is hydraulic gelling property, and the heat of hydration be not high.To Rhizoma Begoniae Willsonii is milled into powder, to prepare mineral polymer Binder Materials significant.
Simultaneously, fast development with China's building industry, China's river sand resource is already close to exhaustion, development and utilization sea sand resources or be only way using the artificial sand of machine-building. because the modulus of fineness of sea sand is less, it is very suitable for manufacturing geology polymer material, and current geology polymer material is mainly used in all kinds of mortars, will not be applied in armored concrete, therefore, it is not necessary to worry the destruction to concrete for the steel bar corrosion.In geology polymer material, application sea sand is that a large amount of exploitation sea sand resources create condition.
Content of the invention
The present invention discloses a kind of building castoff red brick powder flyash geology polymer material and preparation method thereof.It is included using building castoff red brick powder, flyash is main base starting material, using sea sand or artificial sand as aggregate, using solid water glass powder as alkali-activator, and prepares red brick powder flyash geo-polymer Binder Materials with metakaolin for additive.
Described flyash refers to the I level according to national Specification and the II level flyash of all coal-fired utility discharges；Described building castoff red brick powder refers to that the Rhizoma Begoniae Willsonii sorting out from building castoff accounts for the pulverulent material that more than 65% building castoff is less than 0.075 millimeter through broken, screening preparation particle diameter；Described sea sand refers to the sand excavating from shallow sea or deep-sea；Described artificial sand refers to by natural gravel or building castoff through the broken Machine-made Sand less than 5 millimeters manufacturing；Described solid water glass refers to glass sodium silicate solid commercially；Described metakaolin refers to the kaolin powder through 850 DEG C of high-temperature calcinations.
Percentage, described red brick powder：1 70%, flyash：1～80%, sea sand or artificial sand：10～50%, solid water glass powder：1～20%, and counted with red brick powder+flyash+sea sand or artificial sand for 100%, additional 5～50% water and 5～20% metakaolin；
Preferably, described red brick powder 15-50%, flyash：20～60%, sea sand or artificial sand：30～50%, solid water glass powder：5～15%；Metakaolin：10～20%；
Most preferably, described red brick powder 20%, flyash：35%, sea sand or artificial sand：45%, solid water glass powder：12%；Metakaolin：15%；
The preparation method of red brick powder flyash geology polymer material is to be prepared from above-mentioned material in proportion through technical processs such as dispensing, mixing, shaping, maintenance and dryings.
Building castoff utilization rate of the present invention is high, pollution-free, energy consumption is low, the advantage of preparation process is simple, is the new technique of environmental protection and energy-saving and emission-reduction.
Embodiment
The feasibility of the present invention is described with examples of implementation below：
The mould adopting in all example laboratory is self-control three punching block of 40x40x160mm.Using normal pressure and temperature maintenance to 3, after 7,28 days, according to standard GB/T/T17671 1《Test method for strength of hydraulic cement mortar (150 method)》Requirement test comprcssive strength and the rupture strength of geo-polymer respectively.
Example 1, prepare geology polymer material by the match ratio of table one, test its comprcssive strength and rupture strength can be seen that, subtract exciting agent and mineral additive volume constant in the case of, with the increase of the minimizing of red brick powder amount, fine coal ash quantity in polymer, the comprcssive strength of polymeric material and rupture strength increase.In addition the impact to mechanical properties of polymer for the volume of sea sand is obvious.
Table one, sea sand red brick powder flyash geo-polymer proportioning and test result
Example 2, prepares geology polymer material by the match ratio of table two, and compared with example 1, example 2 uses natural gravel artificial sand to replace sea sand.Test its comprcssive strength and rupture strength can draw the result close with example 1, but the polymer phase ratio being manufactured with sea sand, the comprcssive strength of polymeric material of natural gravel artificial sand manufacture and rupture strength have been reduced.This is because the modulus of fineness of artificial sand is more than sea sand, and the multi-angular mobility reducing polymer due to artificial sand.Even so, as long as match ratio rationally, equally can produce, using artificial sand, the red brick powder flyash geology polymer material that performance is suitable for difference engineer applied.
Table two, natural gravel artificial sand red brick powder flyash geo-polymer proportioning and test result
Example 3, prepares geology polymer material by the match ratio of table three, compares with example 1,2, and example 3 uses Aggregate of recycled concrete artificial sand to replace sea sand.Test its comprcssive strength and rupture strength can draw and the close result of example 1 and 2, but the polymer phase ratio being manufactured with sea sand and natural gravel artificial sand, the comprcssive strength of polymeric material of Aggregate of recycled concrete artificial sand manufacture and rupture strength all be increased.This is because Aggregate of recycled concrete artificial sand contains substantial amounts of calcium hydroxide（Ca（OH）2）Its with flyash in active silica and oxidation reactive aluminum on the surface of sand and be internally generated C-S-H, so that the structure of the geo-polymer of present invention manufacture is more closely knit caused.Therefore, the red brick powder flyash geology polymer material of more excellent performance can be produced using Aggregate of recycled concrete artificial sand.
Table three, Aggregate of recycled concrete artificial sand red brick powder flyash geo-polymer proportioning and test result
Example 4, prepares geology polymer material by the match ratio of table four, tests its comprcssive strength and rupture strength.As can be seen that in the case that red brick powder flyash and sand consumption are constant, keep the consumption of mineral additive metakaolin constant, subtract and excite agent addition agent volume bigger, the comprcssive strength of polymeric material and rupture strength are bigger simultaneously.Although, slight highest during the waterglass of participation 20% in polymer, its intensity differs not obvious with the polymer mixing 15% waterglass.From a cost perspective it is believed that 15% waterglass is the optimum mix amount.
Table four, Water glass content is to red brick powder flyash geo-polymer performance impact
Example 5, prepare geology polymer material by the match ratio of table 5, keep red brick powder flyash and sand consumption constant, it is constant that holding simultaneously subtracts exciting agent waterglass consumption, test its comprcssive strength and rupture strength can be seen that, mineral additive volume is bigger, and the comprcssive strength of polymeric material and rupture strength are bigger.Although, participate in polymer 20% metakaolin when intensity highest, its intensity and the polymer phase ratio mixing 15% metakaolin, its intensity increase is not obvious.Therefore, from a cost perspective it is believed that 15% metakaolin is the optimum mix amount.
Five, metakaolin volume is to red brick powder flyash geo-polymer performance impact
Example 6, the red brick powder flyash geology polymer material of the optimal match ratio preparation providing by the technology of the present invention, it is used as masonry mortar, tests the cohesive force of itself and Dinas brickes by national standard, result reaches 4.8MPa, be far longer than the regulation of national standard.
Claims (8)
1. the present invention discloses a kind of waste material of buildings red brick powder flyash geology polymer material and preparation method thereof. and including using building castoff red brick powder, flyash is main base starting material, using sea sand or artificial sand as aggregate, using solid water glass powder as alkali-activator, and red brick powder flyash geo-polymer Binder Materials are prepared for additive with metakaolin.
2. according to claim 1, described flyash refer to the discharge of all coal-fired utility according toCountryI level and II level flyash that standard specifies.
3., according to claim 1, described building castoff red brick powder refers to that the Rhizoma Begoniae Willsonii sorting out from building castoff accounts for the pulverulent material that more than 65% building castoff is less than 0.075 millimeter through broken, screening preparation particle diameter；Described sea sand refers to the sand excavating from shallow sea or deep-sea.
4., according to claim 1, described artificial sand refers to by natural gravel or building castoff through the broken Machine-made Sand less than 5 millimeters manufacturing；Described solid water glass refers to glass sodium silicate solid commercially；Described metakaolin refers to the kaolin powder through 850 DEG C of high-temperature calcinations.
5. according to claim 2, described in 3,4, percentage, described red brick powder：170%, flyash：1～80%, sea sand or artificial sand：10～50%, solid water glass powder：1～20%, and counted with red brick powder+flyash+sea sand or artificial sand for 100%, additional 5～50% water and 5～20% metakaolin.
6. according to described in claim 5, it is highly preferred that described red brick powder 15-50%, flyash：20～60%, sea sand or artificial sand：30～50%, solid water glass powder：5～15%；Metakaolin：10～20%.
7. according to described in right 6, most preferably, described red brick powder 20%, flyash：35%, sea sand or artificial sand：45%, solid water glass powder：12%；Metakaolin：15%.
8. the preparation method of red brick powder flyash geology polymer material described in is to be prepared from above-mentioned material in proportion through technical processs such as dispensing, mixing, shaping, maintenance and dryings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495535.5A CN106431028A (en) | 2015-08-13 | 2015-08-13 | Construction waste red brick powder and coal ash geopolymer material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495535.5A CN106431028A (en) | 2015-08-13 | 2015-08-13 | Construction waste red brick powder and coal ash geopolymer material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106431028A true CN106431028A (en) | 2017-02-22 |
Family
ID=58092939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495535.5A Pending CN106431028A (en) | 2015-08-13 | 2015-08-13 | Construction waste red brick powder and coal ash geopolymer material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106431028A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252736A (en) * | 2017-12-18 | 2018-07-06 | 固岩科技发展有限公司 | A kind of filler based on discarded common brick is in the method for metal mine consolidated fill |
| CN108264283A (en) * | 2018-02-01 | 2018-07-10 | 济南大学 | A kind of discarded clay brick base polymers building block and preparation method thereof |
| CN110981319A (en) * | 2019-12-31 | 2020-04-10 | 湖南大学 | Fly ash-based novel geopolymer mortar with cooperation of recycled red brick micro powder and mineral powder and preparation method thereof |
| CN111217582A (en) * | 2018-11-27 | 2020-06-02 | 原生泰科技发展（北京）有限公司 | Waste red brick powder-based mineral polymer inorganic dry powder texture coating and preparation method thereof |
| CN111253094A (en) * | 2020-03-06 | 2020-06-09 | 北京建工资源循环利用投资有限公司 | Geopolymer gel material and application thereof |
| CN112142382A (en) * | 2020-09-24 | 2020-12-29 | 浙江绿农生态环境有限公司 | Anti-efflorescence geopolymer based on recycled concrete aggregate and preparation method thereof |
| CN112408875A (en) * | 2020-11-06 | 2021-02-26 | 广东工业大学 | Regenerated geopolymer mortar and preparation method and application thereof |
| CN113651562A (en) * | 2021-08-10 | 2021-11-16 | 深圳文科园林股份有限公司 | Paving brick and preparation method thereof |
| CN115448647A (en) * | 2022-10-11 | 2022-12-09 | 东南大学 | High-ductility regenerated powder geopolymer-based reinforced repair material and preparation method thereof |
| CN115572103A (en) * | 2022-11-10 | 2023-01-06 | 深圳市华越新材料有限公司 | Light construction waste reclaimed sand and production method thereof |
| CN115819025A (en) * | 2022-12-19 | 2023-03-21 | 厦门天润锦龙建材有限公司 | Alkali-activated modified sintered brick powder low-carbon mortar suitable for 3D printing and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786808A (en) * | 2009-12-21 | 2010-07-28 | 内蒙古科技大学 | Preparation method of geopolymer |
| CN103601424A (en) * | 2013-11-11 | 2014-02-26 | 长沙理工大学 | Geopolymeric concrete based on recycled aggregate and preparation method of geopolymeric concrete |
-
2015
- 2015-08-13 CN CN201510495535.5A patent/CN106431028A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786808A (en) * | 2009-12-21 | 2010-07-28 | 内蒙古科技大学 | Preparation method of geopolymer |
| CN103601424A (en) * | 2013-11-11 | 2014-02-26 | 长沙理工大学 | Geopolymeric concrete based on recycled aggregate and preparation method of geopolymeric concrete |
Non-Patent Citations (1)
| Title |
|---|
| 刘娟红，宋少民编著: "《绿色高性能混凝土技术与工程应用》", 31 January 2011 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252736A (en) * | 2017-12-18 | 2018-07-06 | 固岩科技发展有限公司 | A kind of filler based on discarded common brick is in the method for metal mine consolidated fill |
| CN108264283A (en) * | 2018-02-01 | 2018-07-10 | 济南大学 | A kind of discarded clay brick base polymers building block and preparation method thereof |
| CN111217582A (en) * | 2018-11-27 | 2020-06-02 | 原生泰科技发展（北京）有限公司 | Waste red brick powder-based mineral polymer inorganic dry powder texture coating and preparation method thereof |
| CN110981319A (en) * | 2019-12-31 | 2020-04-10 | 湖南大学 | Fly ash-based novel geopolymer mortar with cooperation of recycled red brick micro powder and mineral powder and preparation method thereof |
| CN111253094A (en) * | 2020-03-06 | 2020-06-09 | 北京建工资源循环利用投资有限公司 | Geopolymer gel material and application thereof |
| CN112142382A (en) * | 2020-09-24 | 2020-12-29 | 浙江绿农生态环境有限公司 | Anti-efflorescence geopolymer based on recycled concrete aggregate and preparation method thereof |
| CN112408875A (en) * | 2020-11-06 | 2021-02-26 | 广东工业大学 | Regenerated geopolymer mortar and preparation method and application thereof |
| CN113651562A (en) * | 2021-08-10 | 2021-11-16 | 深圳文科园林股份有限公司 | Paving brick and preparation method thereof |
| CN115448647A (en) * | 2022-10-11 | 2022-12-09 | 东南大学 | High-ductility regenerated powder geopolymer-based reinforced repair material and preparation method thereof |
| CN115448647B (en) * | 2022-10-11 | 2024-04-23 | 东南大学 | High-ductility regenerated powder geopolymer-based reinforcement repair material and preparation method thereof |
| CN115572103A (en) * | 2022-11-10 | 2023-01-06 | 深圳市华越新材料有限公司 | Light construction waste reclaimed sand and production method thereof |
| CN115819025A (en) * | 2022-12-19 | 2023-03-21 | 厦门天润锦龙建材有限公司 | Alkali-activated modified sintered brick powder low-carbon mortar suitable for 3D printing and preparation method thereof |
| CN115819025B (en) * | 2022-12-19 | 2024-05-31 | 厦门天润锦龙建材有限公司 | Alkali-activated modified sintered brick powder low-carbon mortar suitable for 3D printing and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106431028A (en) | Construction waste red brick powder and coal ash geopolymer material and preparation method thereof | |
| CN112979192B (en) | Preparation method of lightweight aggregate | |
| CN102786243B (en) | Modified recycled aggregate and recycled aggregate high-performance concrete | |
| CN106830777B (en) | The regeneration fill concrete of consumer waste incineration residue preparation and its application | |
| CN103787602B (en) | A kind of ultra-fine regenerated powder complex geological polymer gel material | |
| CN102363575B (en) | Waste chamotte brick regeneration and utilization method, and concrete doped with waste chamotte brick powder | |
| CN100445232C (en) | Mine debris steamed brick and its production method | |
| CN103951327B (en) | A kind of discarded vitrified brick powder baking-free ceramicite and preparation method | |
| CN103951458B (en) | A kind of discarded unburned foaming haydite of fired brick powder and preparation method | |
| CN110606720B (en) | Preparation method of high-content fly ash-based water permeable brick | |
| CN105621907A (en) | Calcium-base geopolymer and preparation method thereof | |
| CN105152609A (en) | Building brick produced by using fly ash or residues obtained after burning domestic wastes, and production method thereof | |
| CN103435313A (en) | Strength controllable coal ash-based polymer concrete and preparation method thereof | |
| Sahu et al. | The use of fly ash and lime sludge as partial replacement of cement in mortar | |
| CN101805161B (en) | Baking-free brick cementing agent prepared from drilling solid waste | |
| CN104876459A (en) | Coal ash activated excitant and high-content high-calcium fly-ash cement | |
| CN103771817A (en) | Desulfurized gypsum foam concrete and preparation method thereof | |
| CN105601135A (en) | Method for preparing geopolymer materials from red mud and coal ash | |
| CN103086663A (en) | Recycled aggregate structural concrete and manufacture method | |
| CN110590294A (en) | Regenerated powder concrete with good durability and preparation method thereof | |
| WO2016082060A1 (en) | Tk-jh mineral interface active material, and preparation method and use method therefor | |
| CN111762998A (en) | High-temperature activated composite sludge powder solidified dewatered sludge/silt and solidification method thereof | |
| Elhag et al. | A critical review on mechanical, durability, and microstructural properties of industrial by-product-based geopolymer composites | |
| Fan et al. | New applications of municipal solid waste incineration bottom ash (MSWIBA) and calcined clay in construction: Preparation and use of an eco-friendly artificial aggregate | |
| CN101412595A (en) | Method for preparing concrete admixture from kaoline tailing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |