CN106082927A - A kind of alkali-activated slag system geopolymer concrete and preparation method thereof - Google Patents
A kind of alkali-activated slag system geopolymer concrete and preparation method thereof Download PDFInfo
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- CN106082927A CN106082927A CN201610439937.8A CN201610439937A CN106082927A CN 106082927 A CN106082927 A CN 106082927A CN 201610439937 A CN201610439937 A CN 201610439937A CN 106082927 A CN106082927 A CN 106082927A
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- alkali
- parts
- sodium hydroxide
- geopolymer concrete
- slag system
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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
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a kind of alkali-activated slag system geopolymer concrete, the composite granule Binder Materials being made up of slag powders and construction refuse regenerated micropowder, obtain under the excitation of the water glass solution of sodium hydroxide；Described alkali-activated slag system geopolymer concrete is made up of the component of following weight portion: slag powders 150 210 parts, construction refuse regenerated micropowder 20 60 parts, waterglass 190 240 parts, solid sodium hydroxide 25 50 parts, sand 400 700 parts, coarse aggregate 0 1600 parts.This alkali-activated slag system geopolymer concrete is made up of raw materials such as slag powders, construction refuse regenerated micropowder, waterglass, solid sodium hydroxide, fine aggregate, coarse aggregates, there is the advantages such as early strengthening and high strengthening, good endurance, high temperature resistant, good corrosion resistance, heat-proof quality are good, energy consumption is low, be a kind of low cost, high performance green building material.
Description
Technical field
The present invention relates to building material field, particularly to a kind of alkali-activated slag system geopolymer concrete and preparation thereof
Method.
Background technology
The most common technology path of China's construction refuse resource industry is that building waste is processed into regenerated coarse aggregate
And recycled fine aggregate, then it is applied, but owing to sintered clay brick content waste and old in China's building waste is very big, clay brick
Intensity low porosity is high, and the regeneration aggregate produced is difficult to the technical specification required that is up to state standards, and this is that current China builds
The bottleneck problem that building refuse resource industry runs into.If the building waste that will be enriched in sintered clay brick is milled into micropowder, then keep away
Having exempted from the shortcoming that its intensity is low, simultaneously because indefinite form content of material is high in sintered clay brick, micropowder can give full play to it and live
The advantage that property is good.So, in recent years, construction refuse regenerated micropowder becomes a study hotspot.
Alkali-activated carbonatite Binder Materials is the class novel inorganic nonmetallic materials that new development in recent years is got up, and it is by aluminum silicon
The dissolving of hydrochlorate component, disperse, be polymerized and be dehydrated hardening and form, in three-dimensional net structure in its mineral composition physical aspect, because of
This its there is the premium properties of organic polymer, pottery, cement.Its major advantage includes: (1) intensity is high, Main Mechanical
Index is better than glass and cement, can compare favourably with metal materials such as pottery, aluminum, steel；(2) there is stronger corrosion resistance with preferable
Durability, be significantly better than conventional cement material；(3) there is the fastest hard curable；(4) material is high temperature resistant, effect of heat insulation
Good；(5) low in raw material price, rich reserves, its main composition elemental silicon, aluminum, oxygen reserves in the earth's crust are respectively 27%, 8%,
47%；(6) permeability is low, curable toxic waste, and the permeability resistance of geopolymer is better than Portland cement, can be used for solid
Envelope toxic metals and level radioactive nuclear waste.Construction refuse regenerated micropowder is applied to the preparation of alkali-activated carbonatite Binder Materials, on the one hand
Can effectively utilize garbage, reduce ambient pressure, on the other hand can be substantially reduced alkali-activated carbonatite Binder Materials production cost, this is existing
Have in technology and have no report.
Summary of the invention
Technical problem: because the problems referred to above, the invention provides a kind of alkali-activated slag system geopolymer concrete and
Its preparation method, this concrete is by slag powders, construction refuse regenerated micropowder, waterglass, sodium hydroxide, fine aggregate, coarse aggregate
Make Deng raw material, there is good endurance, that high temperature resistant, early strengthening and high strengthening, good corrosion resistance, heat-proof quality are good, energy consumption is low etc. is excellent
Point, is a kind of low cost, high performance green building material.
Technical scheme: in order to solve the defect of prior art, the invention provides a kind of alkali-activated slag system geopolymer
Concrete, the composite granule Binder Materials being made up of slag powders and construction refuse regenerated micropowder, at the waterglass of sodium hydroxide
Obtain under the excitation of solution；Described alkali-activated slag system geopolymer concrete is made up of the component of following weight portion: ore deposit
Ground-slag 150-210 part, construction refuse regenerated micropowder 20-60 part, waterglass 190-240 part, solid sodium hydroxide 25-50 part, sand
Sub-400-700 part, coarse aggregate 0-1600 part.
Preferably, described alkali-activated slag system geopolymer concrete is made up of the component of following weight portion: slag powders
160-180 part, construction refuse regenerated micropowder 20-40 part, waterglass 200-220 part, solid sodium hydroxide 30-40 part, sand
500-600 part, coarse aggregate 800-1200 part.
It is highly preferred that described alkali-activated slag system geopolymer concrete is made up of the component of following weight portion: slag powders
210 parts, construction refuse regenerated micropowder 20 parts, sand 400 parts, waterglass 240 parts, solid sodium hydroxide 50 parts.
As preferably, described slag powders is S95 level or S105 grade slag powder.
Preferred as another kind, described construction refuse regenerated micropowder is RF level regenerative micro powder.
Preferred as another kind, the modulus of described waterglass is 2.0-3.3.
Preferred as another kind, described sodium hydroxide is the solid particle that purity is higher than 95%.
Present invention also offers the preparation method of above-mentioned alkali-activated slag system geopolymer concrete, comprise the following steps:
1) slag powders, construction refuse regenerated micropowder, sand, coarse aggregate are mixed according to proportioning, obtain siccative；
2) solid sodium hydroxide is dissolved in waterglass according to proportioning, the water glass solution of sodium hydroxide must be dissolved with；
3) by step 2) prepare be dissolved with sodium hydroxide water glass solution add step 1) prepare siccative in, mixing；
4) by step 3) product pour, overlay film maintenance, to obtain final product.
Beneficial effect: the alkali-activated slag system geopolymer concrete that the present invention provides is by slag powders, building waste again
The raw materials such as raw micropowder, waterglass, solid sodium hydroxide, fine aggregate, coarse aggregate are made, and have early strengthening and high strengthening, good endurance, resistance to height
The advantages such as temperature, good corrosion resistance, heat-proof quality are good, energy consumption is low, are a kind of low cost, high performance green building materials.
Slag powders and construction refuse regenerated micropowder are used for alkali-activated carbonatite geopolymer by the present invention, relative to prior art, tool
There is an advantage highlighted below:
One, slag powders is trade waste, and regenerative micro powder, then from building castoff, utilizes slag powders and building waste
Regenerative micro powder makes the advantage that this technology has environmental protection and waste utilization；
Its two, slag powders and construction refuse regenerated micropowder all have high activity, sodium hydroxide water glass solution swash
Show effect with lower quick solidifying, intensity height, such that it is able to prepare the concrete material of high-quality；
Its three, the present invention uses the mode of alkali-activated carbonatite, and relatively sintering class Binder Materials also has the saving energy and minimizing has
The advantage of poison noxious gas emission.
Detailed description of the invention
In order to be further appreciated by the present invention, the alkali-activated slag system geopolymer present invention provided below in conjunction with embodiment
Concrete and preparation method thereof illustrates, and protection scope of the present invention is not limited by the following examples.
Slag powders: purchased from upper Hypon field breeze company limited；
Construction refuse regenerated micropowder: RF level regenerative micro powder, purchased from Shanghai Debin Environmental Protection Technology Co., Ltd.；
Sodium hydroxide: purity 95%, purchased from Wuxi City Jing Ke Chemical Co., Ltd., the sodium hydroxide of purity more than 95% is equal
The object of the invention can be realized.
Embodiment 1
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component: S105 slag powders 210 parts, building waste
Regenerative micro powder 20 parts, sand 400 parts, the waterglass of modulus 2.5 240 parts, solid sodium hydroxide 50 parts.
Its preparation method, comprises the following steps:
1) slag powders, construction refuse regenerated micropowder, sand, coarse aggregate are mixed according to proportioning, obtain siccative；
2) solid sodium hydroxide is dissolved in waterglass according to proportioning, the water glass solution of sodium hydroxide must be dissolved with；
3) by step 2) prepare be dissolved with sodium hydroxide water glass solution add step 1) prepare siccative in, mixing；
4) by step 3) product pour, overlay film maintenance, to obtain final product.
Its 28 days comprcssive strength 106MPa of alkali-activated slag system geopolymer concrete that configuration obtains；3 days comprcssive strength
Reach 65MPa, can be used for rapid construction.
Embodiment 2
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component: S105 slag powders 160 parts, building waste
Regenerative micro powder 40 parts, sand 400 parts, the waterglass of modulus 2.0 240 parts, solid sodium hydroxide 40 parts.
Its preparation method is same as in Example 1.
Its 28 days comprcssive strength 75MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 43MPa.
Embodiment 3
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component: S95 slag powders 150 parts, building waste
Regenerative micro powder 60 parts, sand 400 parts, the waterglass of modulus 3.3 240 parts, solid sodium hydroxide 40 parts.
Its preparation method is same as in Example 1.
Its 28 days comprcssive strength 76MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 42MPa.
Embodiment 4
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component: S105 slag powders 180 parts, building waste
Regenerative micro powder 30 parts, sand 700 parts, the waterglass of modulus 2.5 190 parts, solid sodium hydroxide 25 parts.
Its preparation method is same as in Example 1.
Its 28 days comprcssive strength 75MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 40MPa.
Embodiment 5
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component: S105 slag powders 180 parts, building waste
Regenerative micro powder 30 parts, sand 500 parts, the waterglass of modulus 3.0 220 parts, solid sodium hydroxide 35 parts, coarse aggregate 1600 parts.
Its preparation method is same as in Example 1.
Its 28 days comprcssive strength 79MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 45MPa.
Embodiment 6
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component: S105 slag powders 190 parts, building waste
Regenerative micro powder 60 parts, sand 550 parts, the waterglass of modulus 2.7 210 parts, solid sodium hydroxide 45 parts, coarse aggregate 800 parts.
Its preparation method is same as in Example 1.
Its 28 days comprcssive strength 75MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 46MPa.
Embodiment 7
Alkali-activated slag system its composition of raw materials of geopolymer concrete includes component: S105 slag powders 180 parts, building waste
Regenerative micro powder 30 parts, sand 500 parts, the waterglass of modulus 2.5 220 parts, solid sodium hydroxide 35 parts, coarse aggregate 1200 parts.
Its preparation method is same as in Example 1.
Its 28 days comprcssive strength 72MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 41MPa.
Comparative example 1
Concrete comparative example 1, its composition of raw materials includes component: S95 slag powders 210 parts, sand 400 parts, the water of modulus 2.5
240 parts of glass, solid sodium hydroxide 50 parts.
Its 28 days comprcssive strength 65MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 32MPa.
Comparative example 2
Concrete comparative example 2, its composition of raw materials includes component: construction refuse regenerated micropowder 210 parts, sand 400 parts, modulus
The waterglass of 2.5 240 parts, solid sodium hydroxide 50 parts.
Its 28 days comprcssive strength 19MPa of alkali-activated carbonatite geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
11MPa。
Comparative example 3
Concrete comparative example 3, its composition of raw materials includes component: be numbered the cement 210 parts of 525, sand 400 parts, water 100
Part.
Its 28 days comprcssive strength 50MPa of cement concrete that configuration obtains, within 3 days, comprcssive strength reaches 23MPa.
Comparative example 4
Concrete comparative example 4, its composition of raw materials includes component: the calcium lime powder of purity more than 95% 150 parts, regenerative micro powder
60 parts, sand 400 parts, 100 parts of water.
Its 28 days comprcssive strength 15MPa of two ash stability concrete that configuration obtains, within 3 days, comprcssive strength reaches 8MPa.
Comparative example 5
Concrete comparative example 5, its composition of raw materials includes component: be numbered the cement 150 parts of 525, regenerative micro powder 60 parts, sand
Son 400 parts, 100 parts of water.
Its 28 days comprcssive strength 40MPa of alkali-activated slag system geopolymer concrete that configuration obtains, within 3 days, comprcssive strength reaches
To 19MPa.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (6)
1. an alkali-activated slag system geopolymer concrete, it is characterised in that: it is by slag powders and construction refuse regenerated micropowder
The composite granule Binder Materials of composition, obtains under the excitation of the water glass solution of sodium hydroxide；Described alkali-activated slag
It is that geopolymer concrete is made up of the component of following weight portion: slag powders 150-210 part, construction refuse regenerated micropowder 20-60
Part, waterglass 190-240 part, solid sodium hydroxide 25-50 part, sand 400-700 part, coarse aggregate 0-1600 part.
A kind of alkali-activated slag system the most according to claim 1 geopolymer concrete, it is characterised in that: described slag powders
For S95 level or S105 grade slag powder.
A kind of alkali-activated slag system the most according to claim 1 geopolymer concrete, it is characterised in that: described building rubbish
Rubbish regenerative micro powder is RF level regenerative micro powder.
A kind of alkali-activated slag system the most according to claim 1 geopolymer concrete, it is characterised in that: described waterglass
Modulus be 2.0-3.3.
A kind of alkali-activated slag system the most according to claim 1 geopolymer concrete, it is characterised in that: described hydroxide
Sodium is the solid particle that purity is higher than 95%.
6. the preparation method of the alkali-activated slag system geopolymer concrete described in any one of claim 1 to 5, its feature exists
In: comprise the following steps:
1) slag powders, construction refuse regenerated micropowder, sand, coarse aggregate are mixed according to proportioning, obtain siccative；
2) solid sodium hydroxide is dissolved in waterglass according to proportioning, the water glass solution of sodium hydroxide must be dissolved with；
3) by step 2) prepare be dissolved with sodium hydroxide water glass solution add step 1) prepare siccative in, mixing；
4) by step 3) product pour, overlay film maintenance, to obtain final product.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382358A (en) * | 2017-07-24 | 2017-11-24 | 重庆大学 | It is a kind of suitable for permeable alkali-slag concrete of Supporting Load Pavement and preparation method thereof |
| CN108275971A (en) * | 2017-10-24 | 2018-07-13 | 上海老港废弃物处置有限公司 | A kind of preparation method of waste material of buildings base heat-barrier material |
| CN109400087A (en) * | 2018-11-06 | 2019-03-01 | 安徽理工大学 | A kind of method-Ca (OH) enhancing alkali-activated carbonatite concrete resisting carbonization2Inner blending method |
| CN109503103A (en) * | 2018-12-17 | 2019-03-22 | 南京绿色增材智造研究院有限公司 | A kind of superhigh tenacity alkali-activated carbonatite gunite concrete and preparation method thereof |
| CN109987900A (en) * | 2019-04-23 | 2019-07-09 | 湖南云中再生科技股份有限公司 | One kind is with building waste cementitious material as main component and preparation method thereof |
| CN110642582A (en) * | 2019-09-29 | 2020-01-03 | 华北水利水电大学 | Geopolymer-based concrete for block energy storage tower and preparation method thereof |
| CN111138104A (en) * | 2020-01-10 | 2020-05-12 | 扬州大学 | Method for preparing geopolymer gelled material by adopting regenerated micro powder |
| CN111205021A (en) * | 2020-01-13 | 2020-05-29 | 四川大学 | Building waste regenerated composite admixture base polymer concrete |
| CN111470828A (en) * | 2020-03-30 | 2020-07-31 | 辽宁工程技术大学 | Novel fiber-reinforced alkali-activated slag concrete material and preparation method thereof |
| CN111548068A (en) * | 2020-05-18 | 2020-08-18 | 福州大学 | Single component recycled polymer cement concrete |
| CN111548107A (en) * | 2020-05-29 | 2020-08-18 | 重庆建工第四建设有限责任公司 | Alkali slag concrete construction method |
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| CN114735958A (en) * | 2022-04-29 | 2022-07-12 | 浙江天造环保科技有限公司 | Preparation method of geopolymer |
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| CN107382358A (en) * | 2017-07-24 | 2017-11-24 | 重庆大学 | It is a kind of suitable for permeable alkali-slag concrete of Supporting Load Pavement and preparation method thereof |
| CN108275971A (en) * | 2017-10-24 | 2018-07-13 | 上海老港废弃物处置有限公司 | A kind of preparation method of waste material of buildings base heat-barrier material |
| CN109400087A (en) * | 2018-11-06 | 2019-03-01 | 安徽理工大学 | A kind of method-Ca (OH) enhancing alkali-activated carbonatite concrete resisting carbonization2Inner blending method |
| CN109503103A (en) * | 2018-12-17 | 2019-03-22 | 南京绿色增材智造研究院有限公司 | A kind of superhigh tenacity alkali-activated carbonatite gunite concrete and preparation method thereof |
| CN109987900A (en) * | 2019-04-23 | 2019-07-09 | 湖南云中再生科技股份有限公司 | One kind is with building waste cementitious material as main component and preparation method thereof |
| CN110642582B (en) * | 2019-09-29 | 2021-06-15 | 华北水利水电大学 | Geopolymer-based concrete for block energy storage tower and preparation method thereof |
| CN110642582A (en) * | 2019-09-29 | 2020-01-03 | 华北水利水电大学 | Geopolymer-based concrete for block energy storage tower and preparation method thereof |
| CN111138104A (en) * | 2020-01-10 | 2020-05-12 | 扬州大学 | Method for preparing geopolymer gelled material by adopting regenerated micro powder |
| CN111205021A (en) * | 2020-01-13 | 2020-05-29 | 四川大学 | Building waste regenerated composite admixture base polymer concrete |
| CN111470828A (en) * | 2020-03-30 | 2020-07-31 | 辽宁工程技术大学 | Novel fiber-reinforced alkali-activated slag concrete material and preparation method thereof |
| CN111620622A (en) * | 2020-05-13 | 2020-09-04 | 深圳市为海建材有限公司 | Green polymer concrete recycled brick and preparation method thereof |
| CN111548068A (en) * | 2020-05-18 | 2020-08-18 | 福州大学 | Single component recycled polymer cement concrete |
| CN111548107A (en) * | 2020-05-29 | 2020-08-18 | 重庆建工第四建设有限责任公司 | Alkali slag concrete construction method |
| CN112142381A (en) * | 2020-09-24 | 2020-12-29 | 浙江绿农生态环境有限公司 | Fiber-reinforced geopolymer based on recycled concrete aggregate and preparation method thereof |
| CN114735958A (en) * | 2022-04-29 | 2022-07-12 | 浙江天造环保科技有限公司 | Preparation method of geopolymer |
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