CN101306933A - Process for replacing organic polymer in dry mixed mortar by using active fly ash - Google Patents

Process for replacing organic polymer in dry mixed mortar by using active fly ash Download PDF

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Publication number
CN101306933A
CN101306933A CNA2008100181872A CN200810018187A CN101306933A CN 101306933 A CN101306933 A CN 101306933A CN A2008100181872 A CNA2008100181872 A CN A2008100181872A CN 200810018187 A CN200810018187 A CN 200810018187A CN 101306933 A CN101306933 A CN 101306933A
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CN
China
Prior art keywords
flyash
level
fly ash
particle diameter
mixed mortar
Prior art date
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Pending
Application number
CNA2008100181872A
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Chinese (zh)
Inventor
江涌
杨建伟
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XI'AN JY ENERGY-SAVING TECHNOLOGY Co Ltd
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XI'AN JY ENERGY-SAVING TECHNOLOGY Co Ltd
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Publication date
Application filed by XI'AN JY ENERGY-SAVING TECHNOLOGY Co Ltd filed Critical XI'AN JY ENERGY-SAVING TECHNOLOGY Co Ltd
Priority to CNA2008100181872A priority Critical patent/CN101306933A/en
Publication of CN101306933A publication Critical patent/CN101306933A/en
Pending legal-status Critical Current

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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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/023—Chemical treatment
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A method for replacing the organic polymer in dry-mixed mortar by activated fly ash comprises the following two steps that: step 1, the fly ash activation is as follows: firstly, I-grade fly ash and II-grade fly ash are screened out by means of an air grading method with 80 percent of the particle diameters of the I-grade fly ash ranging between 40 and 80 um and above 80 percent of the particle diameters of the II-grade fly ash ranging between 10 and 80 um; secondly, physical activation of fly ash is carried out and a Raymond mill is adopted to grind the screened out the fly ash so as to ensure that above 85 percent of particle diameters are of between 1 and 7 um; thirdly, alkaline matter with the weight ratio equal to 3 to 5 percent is added in and mixed with the fly ash so as to carry out chemical reaction; step 2, according to different uses, the incorporation proportion of the fly ash is determined and is 20 percent to 40 percent of cement consumption, thereby reducing 30 to 50 percent of polymer consumption. The method has the characteristics of low cost, environment protection and high safety.

Description

Using active fly ash substitutes the method for organic polymer in the dry-mixed mortar
Technical field
The invention belongs to the total utilization of PCA technical field, be specifically related to the method that a kind of using active fly ash substitutes organic polymer in the dry-mixed mortar.
Background technology:
Flyash is a kind of solid trade waste that coal-fired power plant produces in process of production, be from the coal firing boiler flue gas, collect with SiO 2And Al 2O 3Be main component, contain a small amount of C aO possesses the powdery substance of volcanic ash character, belongs to sial glassiness mixture.Its main chemical compositions is SiO 2, Al 2O 3, Fe 2O 3, C aThe carbon that O and unburn are most also contains a small amount of M g, T i, compounds such as P, S, the particle of flyash is formed by floating pearl, heavy pearl, magnetic bead and unburnt carbon, density variation is very big between the particle, at 0.4g/cm 3To 4g/cm 3Scope in change.Dry-mixed mortar is meant at difference construction purposes and environmental requirement prescription, promptly gather materials and chemical additive is a polymkeric substance metering back blended mixture by gelling material, aggregate, ratio in accordance with regulations directly adds water and stirs and can use, its mode of production is the powdered mixture that gathers materials and mix by a certain percentage with inorganic coagulation material and various organic polymer admixture selected, delivers to the building site in packed or in bulk mode.By purposes can be divided into ground, plaster, build by laying bricks or stones, bonding, cracking resistance, glue for tile etc.In the at present used dry-mixed mortar for improving its performance, usually added a large amount of organic chemistry polymkeric substance according to different purposes, this makes the dry-mixed mortar cost increase substantially, and the organic chemistry polymkeric substance that is added can pollute environment, also there is harm greatly in HUMAN HEALTH simultaneously.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the using active fly ash that the objective of the invention is to propose a kind of safety, environmental protection substitutes the method for organic polymer in the dry-mixed mortar.
To achieve these goals, the technical solution used in the present invention is:
Using active fly ash substitutes the method for organic polymer in the dry-mixed mortar, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash between the 40-80um scope, the particle diameter of II level flyash more than 80% between the 10um-80um scope.Secondly, flyash is carried out physics activate, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, grinding back fly ash grain is attenuated, 85% above particle diameter is at 1-7um.Make the increase of particle surface dissolution rate, the degree of disorder increase, thereby increase its activity.
Once more, the alkaline matter that adds its weight ratio 3-5% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, churning time is 30-50 minute, reaction times 30-50 minute, can make silicon (aluminium) oxygen bond rupture in the aluminosilicate network, polymerization forms the polymkeric substance of sial network structure gradually, thereby further increases its activity.Said alkaline matter comprises: sodium hydroxide (N aOH) or sodium silicate solid.
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again.
Activating flyash is 20%～40% of used cement gross weight doing the mixed ratio that mixes in the mortar, can reduce 30～50% of polymer loading.
Activate organic polymer in the coal ash instead dry-mixed mortar because the present invention adopts,, also can not pollute, also be beneficial to HUMAN HEALTH simultaneously, have that cost is low, characteristics of environmental protection, safety environment so the dry-mixed mortar cost is reduced significantly.
Embodiment
Below in conjunction with embodiment technical scheme of the present invention is described in further detail.
Embodiment one,
Using active fly ash substitutes the method for organic polymer in the dry-mixed mortar, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash reaches 40um, the particle diameter of II level flyash be 20um account for 40%, particle diameter is that 30um accounts for 50%.
Secondly, flyash is carried out physics activates, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, make grinding after fly ash grain attenuate, 85% above particle diameter is about 3um.Make the increase of particle surface dissolution rate, the degree of disorder increase, thereby increase its activity.
Once more, the alkaline matter that adds its weight ratio 3% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, churning time is 50 minutes, reaction times is 50 minutes, can make silicon (aluminium) oxygen bond rupture in the aluminosilicate network, polymerization forms the polymkeric substance of sial network structure gradually, thereby further increases its activity.Said alkaline matter is sodium hydroxide (N aOH).
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again.
Activate the mixed ratio of flyash in doing mixed mortar and reach 20% of used cement gross weight, can reduce 30% of polymer loading.
Embodiment two,
Using active fly ash substitutes the method for organic polymer in the dry-mixed mortar, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash reaches 60um, the particle diameter of II level flyash be 10um account for 40%, particle diameter be 40um account for 50%.
Secondly, flyash is carried out physics activates, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, make grinding after fly ash grain attenuate, 85% above particle diameter is at 4um.The increase of particle surface dissolution rate, the degree of disorder are increased, increase its activity.
Once more, the alkaline matter that adds its weight ratio 4% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, churning time is 40 minutes, reaction times is 40 minutes, can make silicon (aluminium) oxygen bond rupture in the aluminosilicate network, polymerization forms the polymkeric substance of sial network structure gradually, thereby further increases its activity.Said alkaline matter is included as sodium silicate solid.
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again.
Activate the mixed ratio of flyash in doing mixed mortar and reach 30% of used cement gross weight, can reduce 40% of polymer loading.
Embodiment three,
Using active fly ash substitutes the method for organic polymer in the dry-mixed mortar, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash reaches 80um, the particle diameter of II level flyash be 15um account for 40%, particle diameter be 60um account for 50%.
Secondly, flyash is carried out physics activate, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, fly ash grain attenuates behind the grinding, and 85% above particle diameter is at 5um.Make the increase of particle surface dissolution rate, the degree of disorder increase, thereby increase its activity.
Once more, the alkaline matter that adds its weight ratio 5% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, churning time is 30 minutes, reaction times is 30 minutes, can make silicon (aluminium) oxygen bond rupture in the aluminosilicate network, polymerization forms the polymkeric substance of sial network structure gradually, thereby further increases its activity.Said alkaline matter comprises: sodium hydroxide (N aOH) or sodium silicate solid.
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again.
Activate the mixed ratio of flyash in doing mixed mortar and reach 40% of used cement gross weight, can reduce 50% of polymer loading.

Claims (4)

1, using active fly ash substitutes the method for organic polymer in the dry-mixed mortar, it is characterized in that, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash between the 40-80um scope, the particle diameter of II level flyash more than 80% between the 10um-80um scope.
Secondly, flyash is carried out physics activate, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, grinding back fly ash grain is attenuated, 85% above particle diameter is at 1-7um.
Once more, the alkaline matter that adds its weight ratio 3-5% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, churning time is 30-50 minute, and reaction times 30-50 minute, said alkaline matter comprised: sodium hydroxide (N aOH) or sodium silicate solid.
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again, activating flyash is 20%～40% of used cement gross weight doing the mixed ratio that mixes in the mortar.
2, a kind of using active fly ash according to claim 1 substitutes the method for organic polymer in the dry-mixed mortar, it is characterized in that, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash reaches 40um, the particle diameter of II level flyash be 20um account for 40%, particle diameter is that 30um accounts for 50%.
Secondly, flyash is carried out physics activates, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, make grinding after fly ash grain attenuate, 85% above particle diameter is about 3um.
Once more, the alkaline matter that adds its weight ratio 3% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, and churning time is 50 minutes, and the reaction times is 50 minutes, and said alkaline matter is sodium hydroxide (N aOH).
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again, activate the mixed ratio of flyash in doing mixed mortar and reach 20% of used cement gross weight.
3, a kind of using active fly ash according to claim 1 substitutes the method for organic polymer in the dry-mixed mortar, it is characterized in that, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash reaches 60um, the particle diameter of II level flyash be 10um account for 40%, particle diameter be 40um account for 50%.
Secondly, flyash is carried out physics activates, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, make grinding after fly ash grain attenuate, 85% above particle diameter is at 4um.
Once more, the alkaline matter that adds its weight ratio 4% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, and churning time is 40 minutes, and the reaction times is 40 minutes, and said alkaline matter is included as sodium silicate solid.
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again, activate the mixed ratio of flyash in doing mixed mortar and reach 30% of used cement gross weight.
4, a kind of using active fly ash according to claim 1 substitutes the method for organic polymer in the dry-mixed mortar, it is characterized in that, may further comprise the steps:
The first step: activate flyash, specifically have the following steps again:
At first, the phase-splitting sorting of flyash with the sorting of air classifying method, is passed through one-level whirlwind tube and secondary whirlwind tube successively with flyash, enters vertical dust-precipitator collected ash at last.Filter out I level flyash and II level flyash, the particle diameter 80% of I level flyash reaches 80um, the particle diameter of II level flyash be 15um account for 40%, particle diameter be 60um account for 50%.
Secondly, flyash is carried out physics activate, adopt Raymond mill that I level flyash and the II level flyash that filters out is ground, fly ash grain attenuates behind the grinding, and 85% above particle diameter is at 5um.
Once more, the alkaline matter that adds its weight ratio 5% in carrying out the flyash that physics activated mixes with it under normal temperature condition and carries out chemical reaction, and churning time is 30 minutes, and the reaction times is 30 minutes, and said alkaline matter comprises: sodium hydroxide (N aOH) or sodium silicate solid.
Second step, according to different purposes, determine to mix in the dry-mixed mortar ratio through activated flyash, adopt Agravicmixer to guarantee that it is uniformly dispersed again, activate the mixed ratio of flyash in doing mixed mortar and reach 40% of used cement gross weight.
CNA2008100181872A 2008-05-14 2008-05-14 Process for replacing organic polymer in dry mixed mortar by using active fly ash Pending CN101306933A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101913804A (en) * 2010-07-23 2010-12-15 邵阳市宝鑫高科新材开发有限公司 Dry-mixed mortar material and preparation method thereof
RU2593509C1 (en) * 2015-07-27 2016-08-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) Composition of mixture for production of unfired fly-ash aggregate
RU2612056C1 (en) * 2015-12-14 2017-03-02 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) Composition for light non-bake ash gravel manufacture
CN107032695A (en) * 2017-03-20 2017-08-11 张家港江苏科技大学产业技术研究院 Steel Fiber Reinforced Self-compacting Concrete and preparation method thereof, prefabricated components

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101913804A (en) * 2010-07-23 2010-12-15 邵阳市宝鑫高科新材开发有限公司 Dry-mixed mortar material and preparation method thereof
CN101913804B (en) * 2010-07-23 2012-10-03 邵阳市宝鑫高科新材开发有限公司 Dry-mixed mortar material and preparation method thereof
RU2593509C1 (en) * 2015-07-27 2016-08-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) Composition of mixture for production of unfired fly-ash aggregate
RU2612056C1 (en) * 2015-12-14 2017-03-02 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) Composition for light non-bake ash gravel manufacture
CN107032695A (en) * 2017-03-20 2017-08-11 张家港江苏科技大学产业技术研究院 Steel Fiber Reinforced Self-compacting Concrete and preparation method thereof, prefabricated components
CN107032695B (en) * 2017-03-20 2020-02-07 张家港江苏科技大学产业技术研究院 Steel fiber self-compacting concrete, preparation method thereof and prefabricated part

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Open date: 20081119