CN106588107A - Geopolymer-based foam concrete and preparation method thereof - Google Patents

Geopolymer-based foam concrete and preparation method thereof Download PDF

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Publication number
CN106588107A
CN106588107A CN201610945867.3A CN201610945867A CN106588107A CN 106588107 A CN106588107 A CN 106588107A CN 201610945867 A CN201610945867 A CN 201610945867A CN 106588107 A CN106588107 A CN 106588107A
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China
Prior art keywords
parts
foam concrete
geo
micropowder
base foam
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Pending
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CN201610945867.3A
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Chinese (zh)
Inventor
钱元弟
雷团结
王孝平
韩进
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Maanshan MCC 17 Engineering Science and Technology Co Ltd
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Maanshan MCC 17 Engineering Science and Technology Co Ltd
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Priority to CN201610945867.3A priority Critical patent/CN106588107A/en
Publication of CN106588107A publication Critical patent/CN106588107A/en
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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
    • C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
    • 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
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • 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
    • C04B2111/40—Porous or lightweight materials
    • 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
    • C04B2111/52—Sound-insulating materials
    • 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
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • 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)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a geopolymer-based foamed concrete. The geopolymer-based foamed concrete comprises the following raw materials by weight: 5 to 30 parts of bentonite micropowder, 3 to 28 part of micropowder of iron tailings, 2 to 15 parts of expanded vermiculite powder, 3 to 25 parts of an alkaline activator, 0.1 to 0.6 part of ecological fiber, 0.1 to 10 parts of a foaming agent, 0.2 to 1.0 part of a thickening agent and 5 to 25 parts of water. Since the ecological fiber has good resistance to tensile deformation and light specific gravity, the prepared foam concrete has toughness; and China has abundant ecological plant resources, so a great number of resources can be saved, and the living environment of human beings is benefited. Through good grain composition of the bentonite micropowder, fly ash, the micropowder of iron tailings and the expanded vermiculite powder, the effect of micro-aggregate is exerted and the strength and durability of the prepared foam concrete are improved.

Description

A kind of geo-polymer base foam concrete and preparation method
Technical field
Present invention relates particularly to a kind of geo-polymer base foam concrete and preparation method, belong to building material technology neck Domain.
Background technology
With the regulation of mankind's environmental protection, the raising of awareness of saving energy and national policy, every profession and trade is all in terms of environmental protection, energy-conservation Strengthen research and development capabilities, preferably to protect the environment of human lives.
Geo-polymer is to study one of very active nonmetallic materials in recent years in the world.It is with silicon-containing solid material such as Clay, industrial residue or slag are primary raw material, and Jing appropriate PROCESS FOR TREATMENT obtained by chemical reaction under lower temperature conditions The class Novel Inorganic Polymers material for arriving, can substitute cement for building, road, artificial island, prefabricated components, fire proofed wood The fields such as material.
Foam concrete is also called foam cement, lightweight concrete etc., is useless a kind of profit, environmental protection, energy-conservation, cheap and have Non-flame properties novel building energy-saving material, its density typically fluctuate between 300-1200kg/m3, due to foam concrete In the tiny holes containing a large amount of closings, therefore with good thermal and insulating performance, this is not available for normal concrete. Usual foam concrete of the density rating in 400 kg/m3 range above, heat conductivity between 0.08-0.27w/ (mk), Thermal resistance is about 10-20 times of normal concrete.Using foam concrete as building masonry wall and roofing, with good Energy-saving effect.There is inverse ratio with unit weight in the intensity of general foam concrete, it is necessary to by adding geo-polymer, effectively to solve Certainly the problem of the low intensity of foam concrete, realizes high-strength light.
The content of the invention
The present invention mainly improves the strength problem of foam concrete, there is provided a kind of geo-polymer base foam concrete and Preparation method.
In order to solve above-mentioned technical problem, the invention provides following technical scheme：
A kind of geo-polymer base foam concrete of the present invention, the geo-polymer base foam concrete include according to weight portion Following raw material：Bentonite micropowder 5-30 parts, iron tailings slag micropowder 3-28 parts, expanded vermiculite powder 2-15 parts, alkali-activator 3-25 Part, ecological fiber 0.1-0.6 parts, foaming agent 0.1-10 parts, thickening agent 0.2-1.0 parts, water 5-25 parts.
The bentonite micropowder is that Jing bentonite origin breeze breakdown mills are formed, and particle diameter is 1.0 μm -5.5 μm, and density is 2- 2.7g/cm3。
The expanded vermiculite powder particle diameter is 0.3mm-1.8mm, and density is 50-200kg/m3.
The alkali-activator is the severe alkali state of property and liquid waterglass.
The ecological fiber be by will contain high microsteping ecological vegetable crush drying processing after made by, length is 0.2- 4mm, density is 200450 kg/m3, including rice straw, wheat stalk, corn straw, bark, trunk.
The foaming agent is polyethoxylated fatty alcohols.
Hydroxymethyl, methyl cellulose of the thickening agent for powder, viscosity are 15000Pa.S -200000 Pa.S.
The preparation method of the geo-polymer base foam concrete is：
Step one, caustic alkali and liquid glass mixing and stirring are completely dissolved to caustic alkali, obtain alkali-activator.
Step 2, by the bentonite micropowder needed for dispensing, iron tailings slag micropowder, expanded vermiculite powder, thickening agent, ecological fiber Put together and be stirred, stirring incorporation time is 5-12 minutes, then swash according still further to the water needed for dispensing, foaming agent, alkalescence Send out agent to sequentially add wherein, continue stirring 20-35 minutes, obtain geo-polymer foam concrete.
The beneficial effect that reached of the present invention is：
（1）The present invention foam concrete have more uniform mushy structure, cavity it is tiny, uniform, be not connected to mutually, With excellent sound insulation, heat-insulating flame-retardant performance, and with the agent structure same life-span.
（2）Geo-polymer in the present invention（Bentonite micropowder and alkali-activator）So that foam concrete has very high anti- Compressive Strength and rupture strength, realize high-strength light performance.
（3）There is good opposing stretcher strain ability using ecological fiber, proportion is lighter, makes foam concrete flexible, And China has abundant ecological vegetable resource, can save ample resources, be conducive to the living environment of the mankind.
（4）Using the good grain composition of bentonite micropowder, flyash, iron tailings slag micropowder and expanded vermiculite powder, can be with The effect of micro-aggregate is functioned well as, the intensity and durability of cellular concrete product is improved.
Specific embodiment
Hereinafter the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is only used In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
Raw material is weighed according to following parts by weight：
26 parts of bentonite micropowder, 20 parts of iron tailings slag micropowder, 10 parts of expanded vermiculite powder, 22 parts of alkali-activator, ecological fiber 0.2 Part, 1.5 parts of foaming agent, 0.3 part of thickening agent, 20 parts of water.
（1）Caustic alkali and liquid glass mixing and stirring are completely dissolved to caustic alkali, alkali-activator is obtained；
（2）Bentonite micropowder needed for dispensing, iron tailings slag micropowder, expanded vermiculite powder, thickening agent, ecological fiber are put together It is stirred, stirring incorporation time is 5-12 minutes, then according still further to the water needed for dispensing, foaming agent, alkali-activator successively It is added thereto, continues stirring 20-35 minutes, obtain geo-polymer foam concrete, its dry density is 350kg/m3, resist within 28 days Compressive Strength is 3.1MPa, heat conductivity 0.064w/（m·k）, volume water absorption rate 7%.
Embodiment 2
Raw material is weighed according to following parts by weight：
20 parts of bentonite micropowder, 32 parts of iron tailings slag micropowder, 12 parts of expanded vermiculite powder, 18 parts of alkali-activator, ecological fiber 0.1 Part, 1.8 parts of foaming agent, 0.1 part of thickening agent, 16 parts of water.
（1）Caustic alkali and liquid glass mixing and stirring are completely dissolved to caustic alkali, alkali-activator is obtained；
（2）Bentonite micropowder needed for dispensing, iron tailings slag micropowder, expanded vermiculite powder, thickening agent, ecological fiber are put together It is stirred, stirring incorporation time is 5-12 minutes, then according still further to the water needed for dispensing, foaming agent, alkali-activator successively It is added thereto, continues stirring 20-35 minutes, obtain geo-polymer foam concrete, its dry density is 280kg/m3, resist within 28 days Compressive Strength is 2.3MPa, heat conductivity 0.057w/（m·k）, volume water absorption rate 9%.
Embodiment 3
Raw material is weighed according to following parts by weight：
15 parts of bentonite micropowder, 40 parts of iron tailings slag micropowder, 18 parts of expanded vermiculite powder, 10 parts of alkali-activator, ecological fiber 0.4 Part, 1.1 parts of foaming agent, 0.5 part of thickening agent, 15 parts of water.
（1）Caustic alkali and liquid glass mixing and stirring are completely dissolved to caustic alkali, alkali-activator is obtained；
（2）Bentonite micropowder needed for dispensing, iron tailings slag micropowder, expanded vermiculite powder, thickening agent, ecological fiber are put together It is stirred, stirring incorporation time is 5-12 minutes, then according still further to the water needed for dispensing, foaming agent, alkali-activator successively It is added thereto, continues stirring 20-35 minutes, obtain geo-polymer foam concrete, its dry density is 410kg/m3, resist within 28 days Compressive Strength is 3.7MPa, heat conductivity 0.085w/（m·k）, volume water absorption rate 5%.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic. All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in the present invention's Within protection domain.

Claims (8)

1. a kind of geo-polymer base foam concrete, it is characterised in that the geo-polymer base foam concrete is according to weight Amount part includes following raw material：Bentonite micropowder 5-30 parts, iron tailings slag micropowder 3-28 parts, expanded vermiculite powder 2-15 parts, alkalescence swash Send out agent 3-25 parts, ecological fiber 0.1-0.6 parts, foaming agent 0.1-10 parts, thickening agent 0.2-1.0 parts, water 5-25 parts.
2. a kind of geo-polymer base foam concrete according to claim 1, it is characterised in that the bentonite micropowder It is that Jing bentonite origin breeze breakdown mills are formed, particle diameter is 1.0 μm -5.5 μm, and density is 2-2.7g/cm3。
3. a kind of geo-polymer base foam concrete according to claim 1, it is characterised in that the expanded vermiculite powder Particle diameter is 0.3mm-1.8mm, and density is 50-200kg/m3。
4. a kind of geo-polymer base foam concrete according to claim 1, it is characterised in that the alkali-activator For the severe alkali state of property and liquid waterglass.
5. a kind of geo-polymer base foam concrete according to claim 1, it is characterised in that the ecological fiber is Made by crush, length is 0.2-4mm, and density is 200450 kg/ m3, including rice straw, wheat stalk, corn straw, bark, trunk.
6. a kind of geo-polymer base foam concrete according to claim 1, it is characterised in that the foaming agent is poly- Ethoxylized fatty alcohol.
7. a kind of geo-polymer base foam concrete according to claim 1, it is characterised in that the thickening agent is powder The hydroxymethyl, methyl cellulose of last shape, viscosity are 15000Pa.S -200000 Pa.S.
8. a kind of geo-polymer base foam concrete according to claim 1, it is characterised in that the geo-polymer The preparation method of base foam concrete is：
Step one, caustic alkali and liquid glass mixing and stirring are completely dissolved to caustic alkali, obtain alkali-activator；
Step 2, the bentonite micropowder needed for dispensing, iron tailings slag micropowder, expanded vermiculite powder, thickening agent, ecological fiber are placed on It is stirred together, stirring incorporation time is 5-12 minutes, then according still further to the water needed for dispensing, foaming agent, alkali-activator Sequentially add wherein, continue stirring 20-35 minutes, obtain geo-polymer foam concrete.
CN201610945867.3A 2016-10-26 2016-10-26 Geopolymer-based foam concrete and preparation method thereof Pending CN106588107A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110092618A (en) * 2019-06-10 2019-08-06 英达热再生有限公司 A kind of intumescent geo-polymer injecting paste material and preparation method thereof
CN112048284A (en) * 2020-08-24 2020-12-08 东南大学 Geopolymer composite phase change material suitable for road subgrade, and preparation method and application thereof
CN115872673A (en) * 2022-06-30 2023-03-31 上海力阳道路加固科技股份有限公司 Energy-saving geopolymer-based building grouting material and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491658A (en) * 2011-12-08 2012-06-13 湖南科技大学 Method for preparing geopolymeric material from bentonite
CN102807349A (en) * 2012-08-24 2012-12-05 李桓宇 Foamed concrete building block made of waste residues of ceramics and method for manufacturing foamed concrete building block
CN104130006A (en) * 2014-08-04 2014-11-05 马鞍山十七冶工程科技有限责任公司 Straw fiber reinforced foam concrete and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491658A (en) * 2011-12-08 2012-06-13 湖南科技大学 Method for preparing geopolymeric material from bentonite
CN102807349A (en) * 2012-08-24 2012-12-05 李桓宇 Foamed concrete building block made of waste residues of ceramics and method for manufacturing foamed concrete building block
CN104130006A (en) * 2014-08-04 2014-11-05 马鞍山十七冶工程科技有限责任公司 Straw fiber reinforced foam concrete and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110092618A (en) * 2019-06-10 2019-08-06 英达热再生有限公司 A kind of intumescent geo-polymer injecting paste material and preparation method thereof
CN112048284A (en) * 2020-08-24 2020-12-08 东南大学 Geopolymer composite phase change material suitable for road subgrade, and preparation method and application thereof
CN115872673A (en) * 2022-06-30 2023-03-31 上海力阳道路加固科技股份有限公司 Energy-saving geopolymer-based building grouting material and preparation method thereof
CN115872673B (en) * 2022-06-30 2024-04-19 上海力阳道路加固科技股份有限公司 Energy-saving geopolymer-based building grouting material and preparation method thereof

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Application publication date: 20170426