CN105801042A - Fireproof exterior wall dry-mixed mortar - Google Patents

Fireproof exterior wall dry-mixed mortar Download PDF

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Publication number
CN105801042A
CN105801042A CN201410838420.7A CN201410838420A CN105801042A CN 105801042 A CN105801042 A CN 105801042A CN 201410838420 A CN201410838420 A CN 201410838420A CN 105801042 A CN105801042 A CN 105801042A
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CN
China
Prior art keywords
exterior wall
mortar
wall dry
fireproof
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
Application number
CN201410838420.7A
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Chinese (zh)
Inventor
周丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianchang Hi Tech Innovation Service Center Co Ltd
Original Assignee
Tianchang Hi Tech Innovation Service Center Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianchang Hi Tech Innovation Service Center Co Ltd filed Critical Tianchang Hi Tech Innovation Service Center Co Ltd
Priority to CN201410838420.7A priority Critical patent/CN105801042A/en
Publication of CN105801042A publication Critical patent/CN105801042A/en
Pending legal-status Critical Current

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Abstract

The invention provides a fireproof exterior wall dry-mixed mortar. The fireproof interior wall dry-mixed mortar comprises the following components: Portland cement, quartz sand, a filling material, bentonite, redispersible emulsion powder, cellulose ether, and citric acid. The product has good adhesion to a base surface, the materials are economic and practical, so that cost is saved, at the same time after the base is treated by the material, phenomena of empty drum and shell do not exist, cleaning of construction site is guaranteed, and environmental protection requirements are met; gangue replaces parts of yellow sand, so that pollution is reduced, cost is reduced, and fireproof effects are realized.

Description

A kind of fire prevention exterior wall dry powder and mortar
Technical field
The invention belongs to building material field, be specifically related to a kind of fire prevention exterior wall dry powder and mortar and preparation method thereof.
Background technology
Along with the fast development of building industry, the requirement of building industry quality is more and more higher.Owing to being subject to skills involved in the labour and a various raw-material impact such as cement, sand of workmen, the mortar of job site configuration, no matter it is masonry mortar, decorative mortar or floor leveling mortar, building motar cracking phenomena (even if the most traditional clay wall brick uses cement mortar to plaster also there will be Large Area Cracking) usually occurs, thus cause that construction quality is unstable, intensity is beaten less than requiring, even bum situation happens occasionally, it has also become construction quality common fault.Additionally, along with growth in the living standard, the requirement of self living environment is also increased severely by people day by day, in the construction process in house, take insulation, heat insulation and quiet measure, add one layer of thermal insulation layer on the surface of major project.The material started most is styrofoam thermal insulation layer, after have heat-insulation mortar bed, its principle is all that some small bubbles of vacuum form thin film and reach insulation, heat insulation and quiet effect.But the wherein high-temperature resistant result extreme difference of styrofoam, flameproof effect is also undesirable, once causes the fire on the ground such as Shanghai, Shenyang, and state compulsion prohibits the use of styrofoam.And inorganic kervit microbead insulated sand slurry is owing to forming with incombustible inorganic material, compares safety comparatively speaking, but its cost is high, can cause Engineering Overall cost increase.Find that a kind of fragility is low, tensile strength big, study hotspot that heat preservation energy-saving and the low mortar of cost are always up in building material industry.
Summary of the invention
Present invention aims to prior art Problems existing, it is provided that the exterior wall dry powder and mortar that a kind of tensile strength is big, cost is low and energy-conservation.
The invention provides a kind of fire prevention exterior wall dry powder and mortar, be made up of the component of following percentage by weight:
Portland cement 35%-60%
Quartz sand 10-15%
Filler 30%-45%
Bentonite 3%-5%
Redispersable latex powder 0.1%-0.3%
Cellulose ether 0.3%-0.5%
Citric acid 0.2-0.5%
Preferably, described portland cement is 32.5R or 42.5R cement;
Preferably, described bentonite is organobentonite;
Preferably, described redispersable latex powder is the rubber powder that polyvinyl acetate generates through copolyreaction with polyvinyl alcohol;
Preferably, described cellulose ether is methyl hydroxyethylcellulose ether or methylhydroxypropylcellulose ether.
One, Binder Materials:
In raw material of the present invention, portland cement plays cementation, it is preferred that for 32.5R or 42.5R portland cement;
Two, aggregate
Quartz sand is that quartz is through the broken quartz particles processed, quartz is a kind of nonmetallic mineral, it it is the silicate mineral of a kind of hard, wear-resisting, stable chemical performance, its main mineral constituent is silicon dioxide, in quartz sand selected by the present invention, dioxide-containing silica is not less than 98%, and intensity is high, anti-wear performance is good;
Three, filler
Filler of the present invention is the mixture of yellow ground and gangue;Gangue is the solid waste of discharge in coal mining process and coal washing process, is a kind of black gray expandable rock relatively low, harder than coal with a kind of phosphorus content of coal seam association in coalification course.Including in the digging gangue in tunnelling process, mining process from the spoil of extraction top board, base plate and interlayer and coal washing process is chosen wash spoil.Its main component is Al2O3, SiO2, additionally possibly together with Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 of quantity not grade and trace rare element (gallium, vanadium, titanium, cobalt).
Traditional dry powder and mortar adopts yellow ground to do filler, and yellow ground generally produces source difference by it, can be divided into fluvial sand, sea sand and mountain sand.This three classes sand all obtains from nature, in mining process, cost height has an effect on natural environment, and gangue is the solid waste of discharge in coal mining process and coal washing process, is country's Developing Circulation Economy, according to minimizing, recycling, recirculation principle, the garbage of keypoint treatment.
The present invention adopts coal gangue subculture to replace part yellow ground, not only can reduce pollution, reduce cost, due also to the structure that gangue is special, may also operate as good flameproof effect together with being added on quartz sand, sepiolite powder etc..
Four, water-retaining agent
Cellulose ether is a kind of conventional water-retaining agent in paint coating field, and it can make the moisture in mortar not easily lose, and progressively discharges within long period of time, gives the good water-retaining property of mortar and workability,
Bentonite is the moisture argillic horizon based on montmorillonite, and it has excellent ion exchangeable, dilatancy, adhesiveness, plasticity, fire resistance, and bentonite has stronger water absorption, it is possible to improve the intensity of material;It also has unique selective absorption, it is possible to the permanent absorption solidification of the radioactive substance in block material, have the function purified with repairing environment.
Five, thickening agent
Often being expanded with heat and contract with cold after powder body building materials molding and weather, temperature, humidity etc. affect, dry, ftracture, the phenomenon such as come off happens occasionally, especially after material chance water and stress, this phenomenon is more serious.The method of appropriate thickening agent is added to reach product anticracking and to increase elastic effect for this present invention.Redispersable latex powder has prominent adhesion strength, can improve the elasticity of binding agent, and give the alkali resistance that binding agent is excellent;
Six, retarder
Cement retarder can postpone hydrated reaction of cement, thus extending the setting time of plastering material so that it is the long period can keep plasticity, conveniently build, improve efficiency of construction.Citric acid can also effectively suppress the phenomenons such as the material accumulation of salt in the surface soil to produce simultaneously;
The useful of the present invention is effectively in that: adhering well to power with basal plane, material is economical and practical, cost-saved, and the basic unit after this material processes will not flake by hollowing simultaneously, it is ensured that job site is cleaned, and more meets environmental requirement;Adopt coal gangue subculture for part yellow ground, not only can reduce pollution, reduce cost, moreover it is possible to play fireproofing function.
Detailed description of the invention
Embodiment 1
A kind of fire prevention exterior wall dry powder and mortar, is made up of the component of following percentage by weight:
Portland cement 44%
Quartz sand 12%
Yellow ground 15%
Colliery powder 25%
Bentonite 3%
Redispersable latex powder 0.2%
Cellulose ether 0.4%
Citric acid 0.4%
Described portland cement is 42.5R cement;
Described quartz sand particle size is 200 orders;
Described yellow ground is fluvial sand, and clay content is 1%, and density is 2500kg/m3
The particle diameter of described colliery powder is 600 orders;
Described bentonite is organobentonite;
Described redispersable latex powder is the rubber powder that polyvinyl acetate generates through copolyreaction with polyvinyl alcohol;
Described cellulose ether is methyl hydroxyethylcellulose ether;
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention.

Claims (5)

1. a fire prevention exterior wall dry powder and mortar, it is characterised in that be made up of the component of following percentage by weight:
Portland cement 35%-60%
Quartz sand 10-15%
Filler 30%-45%
Bentonite 3%-5%
Redispersable latex powder 0.1%-0.3%
Cellulose ether 0.3%-0.5%
Citric acid 0.2-0.5%.
2. fire prevention exterior wall dry powder and mortar as claimed in claim 1, it is characterised in that described portland cement is 32.5R or 42.5R cement.
3. fire prevention exterior wall dry powder and mortar as claimed in claim 1, it is characterised in that described bentonite is organobentonite.
4. fire prevention exterior wall dry powder and mortar as claimed in claim 1, it is characterised in that described redispersable latex powder is the rubber powder that polyvinyl acetate generates through copolyreaction with polyvinyl alcohol.
5. fire prevention exterior wall dry powder and mortar as claimed in claim 1, it is characterised in that described cellulose ether is methyl hydroxyethylcellulose ether or methylhydroxypropylcellulose ether.
CN201410838420.7A 2014-12-30 2014-12-30 Fireproof exterior wall dry-mixed mortar Pending CN105801042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410838420.7A CN105801042A (en) 2014-12-30 2014-12-30 Fireproof exterior wall dry-mixed mortar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410838420.7A CN105801042A (en) 2014-12-30 2014-12-30 Fireproof exterior wall dry-mixed mortar

Publications (1)

Publication Number Publication Date
CN105801042A true CN105801042A (en) 2016-07-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410838420.7A Pending CN105801042A (en) 2014-12-30 2014-12-30 Fireproof exterior wall dry-mixed mortar

Country Status (1)

Country Link
CN (1) CN105801042A (en)

Cited By (3)

* 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
CN107721306A (en) * 2017-10-13 2018-02-23 佛山市家德士环保建材有限公司 A kind of dry powder and mortar of exterior wall application and preparation method thereof
CN111848027A (en) * 2020-06-30 2020-10-30 山东基舜节能建材有限公司 Leveling mortar, preparation method and application in exterior wall real stone paint system

Cited By (3)

* 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
CN107721306A (en) * 2017-10-13 2018-02-23 佛山市家德士环保建材有限公司 A kind of dry powder and mortar of exterior wall application and preparation method thereof
CN111848027A (en) * 2020-06-30 2020-10-30 山东基舜节能建材有限公司 Leveling mortar, preparation method and application in exterior wall real stone paint system

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PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160727

WD01 Invention patent application deemed withdrawn after publication