CN106186972B - A kind of method that reclaimed materials prepares dry powder and mortar - Google Patents

A kind of method that reclaimed materials prepares dry powder and mortar Download PDF

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Publication number
CN106186972B
CN106186972B CN201610533388.0A CN201610533388A CN106186972B CN 106186972 B CN106186972 B CN 106186972B CN 201610533388 A CN201610533388 A CN 201610533388A CN 106186972 B CN106186972 B CN 106186972B
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China
Prior art keywords
mortar
dry powder
reclaimed materials
powder
added
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CN201610533388.0A
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CN106186972A (en
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张洲会
盛嘉禾
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DEQING YANGTAI BUILDING MATERIAL Co Ltd
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DEQING YANGTAI BUILDING MATERIAL Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06Aluminous cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures

Abstract

A kind of method that reclaimed materials prepares dry powder and mortar, this method uses recycling refractory brick as main binder and aggregate, it is at low cost, good flame retardation effect, layered double hydroxide is added to match with redispersable latex powder, increase the cohesive force with basal plane, when fire occurs, there is preferably flame retardant effect.

Description

A kind of method that reclaimed materials prepares dry powder and mortar
Technical field
The invention belongs to building material fields, and in particular to a kind of method that reclaimed materials prepares dry powder and mortar.
Background technology
With the fast development of construction industry, the requirement to construction industry quality is higher and higher.Due to the skill by construction personnel The influence of the various raw material such as art qualification and cement, sand, the mortar of construction site configuration, either masonry mortar, Usually there is building plastering mortar cracking phenomena (even most traditional clay wall in decorative mortar or floor leveling mortar Brick also will appear Large Area Cracking using cement mortar plastering), to cause construction quality is unstable, intensity beat less than require, Situation even with low quality happens occasionally, it has also become construction quality common fault.In addition, with the improvement of living standards, people couple The requirement of itself living environment also increasingly increases severely, and in the construction process in house, takes heat preservation, heat-insulated and mute measure, The surface of major project increases one layer of thermal insulation layer.The material most started is styrofoam thermal insulation layer, after have it is heat-insulation mortar bed, it is former Reason is all that several small bubbles of vacuum form thin films and achieve the effect that heat preservation, heat-insulated and mute.But wherein polyphenyl The high-temperature resistant result of plate is very poor, and flameproof effect is also undesirable, and the fire on the ground such as Shanghai, Shenyang, state compulsion was once caused to prohibit The use of styrofoam is stopped.And comparatively inorganic kervit microbead insulated sand slurry compares due to being formed with incombustible inorganic material It is safer, but its cost is high, and engineering overall cost can be caused to rise.Find that a kind of brittleness is low, tensile strength is big, heat preservation energy-saving And mortar at low cost is always the research hotspot in building material industry.
After being used for multiple times, various performances are greatly reduced the refractory material of field of steel-making, cannot be satisfied the needs of steel-making, And these refractory materials contain the ingredients such as a large amount of corundum, cement, these ingredients can be applied to dry powder and mortar.
Invention content
The side for preparing dry powder and mortar it is an object of the invention in view of the problems of the existing technology, provide a kind of reclaimed materials Method.
A kind of method that reclaimed materials prepares dry powder and mortar, comprises the steps of:
Step 1:Refractory brick grinding particulate will be recycled, after crossing 80 mesh sieve, redispersable latex powder and the double gold of stratiform is added Belong to hydroxide, continue to grind after stirring evenly, crosses 325 mesh sieve, obtain fine powder;
Step 2:Above-mentioned fine powder is poured into blender, bentonite, citric acid and diatomite is added, is uniformly mixed;
Step 3:The recycling firebrick particle after 80 mesh of the mistake sieve in step 1 is added in blender again and continues stirring It is even.
Preferably, the main component of the recycling refractory brick is:Corundum, pure calcium aluminate cement, clay, aluminium oxide, magnesium Sand, zirconium dioxide.
Preferably, the layered double hydroxide is ferrous aluminium class layered hydroxide.
Layered double hydroxide (layered double hydroxides, LDHs, also known as hydrotalcite stratiform material Material) it is a kind of anion type laminated compound with broad prospect of application, structure is similar to shepardite, and chemical general formula is [M2+ (1-x)M3+ x(OH)2]x+(An-)x/n·y H2O.Wherein M2+、M3+It respectively represents and occupies octahedra hydroxide center on laminate The divalent and trivalent metal ion of position, An-For interlayer exchangeable anions.With the similar divalent of radius, trivalent metal cation Partly or entirely substitution M2+And M3+A variety of binary, ternary even four-component hydrotalcite compound can be synthesized.LDHs is by positively charged The main layer board and interlayer anion of lotus are mutually assembled by non-covalent bond, have special interlayer anion commutative Property, aperture can the shape-selective adsorptivity of modulation, cation assortable property, surface Acid and basic sites compossibility etc. on layer, make it have solely Special function not only has the ion exchanging function of similar ion exchange resin, also special absorption and catalysis, and general There is the ability of higher thermal stability and acid and alkali-resistance, so becoming one kind in catalysis, absorption, ion exchange, photoelectromagnetic, medicine And the fields such as functional high molecule material have the new material of potentiality and foreground, are widely used as catalyst, adsorbent, ion exchange Agent, electrode material, medicinal slow release agent and fire proofing material etc..
The purpose that layered double hydroxide is added in the present invention is to recycle the superfine powder after refractory brick grinding It is distributed to the inside and surface of layered double hydroxide, there is better caking property under the cooperation of redispersable latex powder Can, and when encountering fire, due to being uniformly dispersed, flame retardant effect is more preferable.
And the purpose of preferably ferrous aluminium class layered hydroxide is, is conducive to form hercynite knot after fire Structure, rather than magnesia-alumina spinel structure.The caking property of magnesia-alumina spinel structure and concrete substrates is poor, is easy to fall off, significantly Influence fire retardation of the dry powder and mortar to building.
Preferably, reclaimed materials of the present invention prepares dry powder and mortar, by forming following weight percentage components:
The beneficial of the present invention is effectively:There is very good adhesion with basal plane, material is economical and practical, has used a large amount of return Receive refractory brick, at low cost, good flame retardation effect;Layered double hydroxide is added to match with redispersable latex powder, increases There is preferably flame retardant effect when fire occurs with the cohesive force of basal plane.
Specific implementation mode
Embodiment 1
A kind of method that reclaimed materials prepares dry powder and mortar, which is characterized in that comprise the steps of:
Step 1:Refractory brick grinding particulate will be recycled, after crossing 80 mesh sieve, redispersable latex powder and the double gold of stratiform is added Belong to hydroxide, continue to grind after stirring evenly, crosses 325 mesh sieve, obtain fine powder;
Step 2:Above-mentioned fine powder is poured into blender, bentonite, citric acid and diatomite is added, is uniformly mixed;
Step 3:The recycling firebrick particle after 80 mesh of the mistake sieve in step 1 is added in blender again and continues stirring It is even;
The main component of the recycling refractory brick is:Corundum, pure calcium aluminate cement, clay, aluminium oxide, magnesia, dioxy Change zirconium;
The layered double hydroxide is ferrous aluminium class layered hydroxide;
Dry powder and mortar prepared by the reclaimed materials, by forming following weight percentage components:
Embodiment 2
A kind of method that reclaimed materials prepares dry powder and mortar, which is characterized in that comprise the steps of:
Step 1:Refractory brick grinding particulate will be recycled, after crossing 80 mesh sieve, redispersable latex powder and the double gold of stratiform is added Belong to hydroxide, continue to grind after stirring evenly, crosses 325 mesh sieve, obtain fine powder;
Step 2:Above-mentioned fine powder is poured into blender, bentonite, citric acid and diatomite is added, is uniformly mixed;
Step 3:The recycling firebrick particle after 80 mesh of the mistake sieve in step 1 is added in blender again and continues stirring It is even;
The main component of the recycling refractory brick is:Corundum, pure calcium aluminate cement, clay, aluminium oxide, magnesia, dioxy Change zirconium;
The layered double hydroxide is ferrous aluminium class layered hydroxide;
Dry powder and mortar prepared by the reclaimed materials, by forming following weight percentage components:
Embodiment 3
A kind of method that reclaimed materials prepares dry powder and mortar, which is characterized in that comprise the steps of:
Step 1:Refractory brick grinding particulate will be recycled, after crossing 80 mesh sieve, redispersable latex powder and the double gold of stratiform is added Belong to hydroxide, continue to grind after stirring evenly, crosses 325 mesh sieve, obtain fine powder;
Step 2:Above-mentioned fine powder is poured into blender, bentonite, citric acid and diatomite is added, is uniformly mixed;
Step 3:The recycling firebrick particle after 80 mesh of the mistake sieve in step 1 is added in blender again and continues stirring It is even;
The main component of the recycling refractory brick is:Corundum, pure calcium aluminate cement, clay, aluminium oxide, magnesia, dioxy Change zirconium;
The layered double hydroxide is ferrous aluminium class layered hydroxide;
Dry powder and mortar prepared by the reclaimed materials, by forming following weight percentage components:
Comparative example 1
By the layered double hydroxide removal in embodiment 1, remaining condition is constant.
Comparative example 2
Ferrous aluminium class layered hydroxide in embodiment 1 is replaced with into magnesia-alumina layered hydroxide, remaining condition is not Become.
Fire prevention detection carried out to embodiment 1-3 and comparative example 1-2, detection mortar from the dropping situations on wall, Testing result is as follows:
Serial number Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1 Comparative example 2
1 Nothing Nothing Nothing Slightly Nothing
2 Nothing Nothing Nothing Nothing Nothing
3 Nothing Nothing Nothing Seriously Slightly
4 Nothing Nothing Nothing Seriously Seriously
As a result:Nothing:Nothing falls off;Slightly:Slightly fall off;Seriously:Severe detachment
Group 1:With alcohol blast burner flame away from coating 5cm, toast, dry powder and mortar is applied to concrete wall surface, coating layer thickness 5mm, fire duration 5min.
Group 2:With alcohol blast burner flame away from coating 5cm, toast, dry powder and mortar is applied to concrete wall surface, coating layer thickness: 1cm, fire duration 5min.
Group 3:With alcohol blast burner flame away from coating 5cm, toast, dry powder and mortar is applied to concrete wall surface, coating layer thickness: 5mm, fire duration 10min.
Group 4:With alcohol blast burner flame away from coating 5cm, toast, dry powder and mortar is applied to concrete wall surface, coating layer thickness: 5mm, fire duration 30min.
By the above testing result it is recognised that ferrous aluminium class layered hydroxide ratio is added in the dry powder and mortar of the present invention not Layered hydroxide is added or the layered hydroxide of other elements is added, dry powder and mortar is applied to concrete wall surface, in fire When have many adhesive properties, flame retardant effect is well very much.
This detection data is just for above-mentioned detection sample.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (3)

1. a kind of method that reclaimed materials prepares dry powder and mortar, which is characterized in that comprise the steps of:
Step 1:Refractory brick grinding particulate will be recycled, after crossing 80 mesh sieve, redispersable latex powder and layered bi-metal hydrogen is added Oxide continues to grind after stirring evenly, and crosses 325 mesh sieve, obtains fine powder;
Step 2:Above-mentioned fine powder is poured into blender, bentonite, citric acid and diatomite is added, is uniformly mixed;
Step 3:The recycling firebrick particle after 80 mesh of the mistake sieve in step 1 is added in blender again and continues to stir evenly i.e. It can;
Dry powder and mortar prepared by the reclaimed materials, by forming following weight percentage components:
Recycle refractory brick 75-85%
Redispersable latex powder 1-3%
Layered double hydroxide 0.5-1%
Bentonite 3-5%
Citric acid 0.2-0.5%
Diatomite surplus.
2. the method that reclaimed materials according to claim 1 prepares dry powder and mortar, which is characterized in that the recycling refractory brick Main component be:Corundum, pure calcium aluminate cement, clay, aluminium oxide, magnesia, zirconium dioxide.
3. the method that reclaimed materials according to claim 1 prepares dry powder and mortar, which is characterized in that the layered bi-metal Hydroxide is ferrous aluminium class layered hydroxide.
CN201610533388.0A 2016-07-06 2016-07-06 A kind of method that reclaimed materials prepares dry powder and mortar Active CN106186972B (en)

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CN106186972B true CN106186972B (en) 2018-08-31

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106747034A (en) * 2017-01-18 2017-05-31 丽水市知科科技有限公司 A kind of inexpensive external wall dry powder and mortar and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102924105A (en) * 2012-11-30 2013-02-13 中国石油集团川庆钻探工程有限公司 Portland cement refractory mortar and construction technology thereof
CN104230264A (en) * 2014-09-02 2014-12-24 德清扬泰建筑材料有限公司 Cement-based waterproof material and preparation method thereof
CN104529330A (en) * 2014-12-11 2015-04-22 德清扬泰建筑材料有限公司 Environment-friendly fireproof dry-mixed mortar for exterior wall

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102924105A (en) * 2012-11-30 2013-02-13 中国石油集团川庆钻探工程有限公司 Portland cement refractory mortar and construction technology thereof
CN104230264A (en) * 2014-09-02 2014-12-24 德清扬泰建筑材料有限公司 Cement-based waterproof material and preparation method thereof
CN104529330A (en) * 2014-12-11 2015-04-22 德清扬泰建筑材料有限公司 Environment-friendly fireproof dry-mixed mortar for exterior wall

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