CN101302090A - Rubber powder cement mortar for construction heat insulation and preparation thereof - Google Patents
Rubber powder cement mortar for construction heat insulation and preparation thereof Download PDFInfo
- Publication number
- CN101302090A CN101302090A CNA2008100395994A CN200810039599A CN101302090A CN 101302090 A CN101302090 A CN 101302090A CN A2008100395994 A CNA2008100395994 A CN A2008100395994A CN 200810039599 A CN200810039599 A CN 200810039599A CN 101302090 A CN101302090 A CN 101302090A
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- CN
- China
- Prior art keywords
- cement mortar
- rubber powder
- cement
- sand
- water
- 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
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Classifications
-
- 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
-
- 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
- C04B2111/34—Non-shrinking or non-cracking 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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the building material technical field, in particular relating to rubber cement mortar used for construction heat-insulation and a method for preparing the same. The cement mortar consists of cement, water reducing agent, air-entraining agent, rubber powder, sand, polymer powder, cellulose ether and water. The velocity of the cement mortar is about 80 mm, the layering degree of the cement mortar is about 20 mm, the dry apparent density of the cement mortar reaches 850 kg.m<3>, the thermal conductivity is about 0.08 W.m<-1>, the softening coefficient reaches 1.00, the folding strength is 410 KPa, the pressive strength is 640KPa, the linear shrinkage factor is about 0.09 percent, and the 56 d pressure and shear cohesional strength is 120 KPa. The cement mortar is suitable for various heat-insulation projects.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of rubber powder cement mortar for construction heat insulation and preparation method thereof.
Background technology
Along with the develop rapidly of Domestic Automotive Industry, the reasonable disposal of junked tire becomes the overall situation problem that the utmost point is subjected to social concerns.According to incompletely statistics, only the discarded amount of 2006 1 year China's doughnut just surpasses 100,000,000, and in these junked tires, has only about 50% to obtain rational recovery and utilization.The appearance of junked tire not only severe contamination the environment of our life, and be a kind of great wasting of resources, also very easily cause fire together if be deposited in, its incomplete combustion can be emitted hydrocarbon polymer and toxic gas, flame also is difficult to put out.
The energy-conservation call of construction work has been proposed when former government, the raw material sources such as Polyurethane that are used for heat insulation function in the existing building engineering are in oil, and with after the junked tire mechanical disintegration, replace sand and prepare sand-cement slurry, make this sand-cement slurry have lightweight, the advantage that insulation etc. are unique can not only satisfy the requirement of current construction work to insulation, and dispose a large amount of junked tires, play the effect of changing waste into valuables.All derive from the report that does not also have at present about this respect both at home and abroad.
Summary of the invention
The object of the present invention is to provide a kind of admixture to pulverize the preparation method that the back forms the rubber powder cement mortar for construction heat insulation of rubber powder by junked tire.
The rubber powder cement mortar for construction heat insulation that the present invention proposes is made up of cement, water reducer, air entrapment agent, rubber powder, sand, latex powder, ether of cellulose, water, and each component is by weight ratio:
Cement 100
Water reducer 0-5
Air entrapment agent 0-1
Rubber powder 100-400
Sand 0-100
Latex powder 0-1
Ether of cellulose 0-1
Water 20-60.
The preferable weight ratio of each component is:
Cement 100
Water reducer 0.5-1.5
Air entrapment agent 0.01-0.09
Rubber powder 200-400
Sand 1-50
Latex powder 0.1-0.9
Ether of cellulose 0.02-0.2
Water 30-50.
Preparation method of the present invention is: in each each component of composition weight ratio weighing, stir first cement, water reducer, air entrapment agent, rubber powder, sand, latex powder, ether of cellulose are added in the mixing machine successively, adds entry then, stirs, time is 2-7 minute, promptly obtains desired product.
Among the present invention, water reducer is a plasticizing diminishing component, be composition commonly used in the material of construction, it is a kind of tensio-active agent, add in the cement slurry after, can be adsorbed on cement particle surface, make to be floccular paste structure disintegration originally, discharge the free water of wrapping up in the flucculation structure, thereby increase considerably the flowability of slurry, or under the diminishing situation, increase slurry intensity.Air entrapment agent also is a component commonly used in the building materials, and it can make sand-cement slurry introduce a large amount of small encapsulated bubble in whipping process, improves the workability and the weather resistance of sand-cement slurry, reduces the apparent density and the thermal conductivity of sand-cement slurry, improves the thermal property of sand-cement slurry.Latex powder is a kind of organic gel gel material, is spiked in the thermal insulation mortar, can obviously improve the cohesiveness and the water-retentivity of sand-cement slurry, improve the cohesive force between rubber powder, sand and the cement slurry, unlikely whereabouts in construction process reduces the bounce-back rate, improve work efficiency, cut the waste; Reduce the drying shrinkage of sand-cement slurry.Ether of cellulose is a water-retaining component, also is usual component in the building materials, and it can significantly improve the workability of sand-cement slurry, reduces the delamination degree of sand-cement slurry.The denseness of this sand-cement slurry is about 80mm, and delamination degree is about 20mm, and dried apparent density reaches 850kgm
-3, thermal conductivity is 0.08Wm
-1K
-1About, coefficient of softening reaches 1.00, and the 28d folding strength reaches 410KPa, and 28d ultimate compression strength reaches 640KPa, and linear shrinkage is about 0.09%, the 56d pressure is cut cohesive strength and is reached 120KPa.
The present invention is a kind of thermal insulation mortar, not only has good workability, is convenient to construction, improves operating efficiency, also has good thermal property, improves the insulated capacity of buildings, is fit to be applied to various heat insulating works.During use, it is identical in common plastering construction.
Available commodities mortar of the present invention factory produces, and is widely used in various heat insulating works.
Embodiment
Embodiment 1, it is formulated that rubber powder cement mortar for construction heat insulation is pressed cement 22.14% (weight percent, as follows), water reducer (massfraction 20%) 0.22%, air entrapment agent 0.01%, rubber powder 66.42%, latex powder 0.11%, ether of cellulose 0.01% and water 11.07%.The denseness of this sand-cement slurry is 80mm, and delamination degree is 20mm, does apparent density 850kgm
-3, thermal conductivity is 0.08Wm
-1K
-1, coefficient of softening 1.00,28d folding strength 410KPa, 28d ultimate compression strength 640KPa, linear shrinkage 0.09%, 56d are pressed and are cut cohesive strength 120KPa.
Embodiment 2, it is formulated that rubber powder cement mortar for construction heat insulation is pressed cement 22.14% (weight percent, as follows), water reducer (massfraction 20%) 0.22%, air entrapment agent 0.01%, rubber powder 63.10%, sand 3.32%, latex powder 0.11%, ether of cellulose 0.01% and water 11.07%.The denseness of this sand-cement slurry is 82mm, and delamination degree is 20mm, does apparent density 900kgm
-3, thermal conductivity is 0.09Wm
-1K
-1, coefficient of softening 1.00,28d folding strength 450KPa, 28d ultimate compression strength 700KPa, linear shrinkage 0.09%, 56d are pressed and are cut cohesive strength 130KPa.
Embodiment 3, it is formulated that rubber powder cement mortar for construction heat insulation is pressed cement 22.14% (weight percent, as follows), water reducer (massfraction 20%) 0.22%, air entrapment agent 0.01%, rubber powder 59.78%, sand 6.31%, latex powder 0.11%, ether of cellulose 0.01% and water 11.07%.The denseness of this sand-cement slurry is 83mm, and delamination degree is 20mm, does apparent density 950kgm
-3, thermal conductivity is 0.09Wm
-1K
-1, coefficient of softening 1.00,28d folding strength 470KPa, 28d ultimate compression strength 740KPa, linear shrinkage 0.09%, 56d are pressed and are cut cohesive strength 150KPa.
Claims (3)
1, a kind of rubber powder cement mortar for construction heat insulation is characterized in that being made up of cement, water reducer, air entrapment agent, rubber powder, sand, latex powder, ether of cellulose, water, and each composition weight proportioning is:
Cement 100
Water reducer 0-5
Air entrapment agent 0-1
Rubber powder 100-400
Sand 0-100
Latex powder 0-1
Ether of cellulose 0-1
Water 20-60.
2, rubber powder cement mortar for construction heat insulation according to claim 1 is characterized in that the weight proportion of each component is:
Cement 100
Water reducer 0.5-1.5
Air entrapment agent 0.01-0.09
Rubber powder 200-400
Sand 1-50
Latex powder 0.1-0.9
Ether of cellulose 0.02-0.2
Water 30-50.
3, the preparation method of rubber powder cement mortar for construction heat insulation as claimed in claim 1 or 2, it is characterized in that concrete steps are: in each each component of composition weight ratio weighing, earlier cement, water reducer, air entrapment agent, rubber powder, sand, latex powder, ether of cellulose are added in the mixing machine successively and stir, add entry then, stir, time is 2-7 minute, promptly obtains desired product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100395994A CN101302090A (en) | 2008-06-26 | 2008-06-26 | Rubber powder cement mortar for construction heat insulation and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100395994A CN101302090A (en) | 2008-06-26 | 2008-06-26 | Rubber powder cement mortar for construction heat insulation and preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101302090A true CN101302090A (en) | 2008-11-12 |
Family
ID=40112220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100395994A Pending CN101302090A (en) | 2008-06-26 | 2008-06-26 | Rubber powder cement mortar for construction heat insulation and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101302090A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709170B (en) * | 2009-12-15 | 2011-10-05 | 江南大学 | Flexible putty of rubber powder and preparation method thereof |
| CN104609822A (en) * | 2014-12-29 | 2015-05-13 | 青建集团股份公司 | High-strength heat-preservation mortar for buildings |
| CN107572932A (en) * | 2017-10-12 | 2018-01-12 | 贺州学院 | A kind of mortar and preparation method thereof |
| CN112777981A (en) * | 2021-01-08 | 2021-05-11 | 浙江理工大学 | Low-cost high-performance fully-recycled aggregate mortar and preparation method thereof |
| CN116023091A (en) * | 2022-12-12 | 2023-04-28 | 振中建设集团有限公司 | Regenerated rubber thermal insulation mortar and preparation process and application thereof |
-
2008
- 2008-06-26 CN CNA2008100395994A patent/CN101302090A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709170B (en) * | 2009-12-15 | 2011-10-05 | 江南大学 | Flexible putty of rubber powder and preparation method thereof |
| CN104609822A (en) * | 2014-12-29 | 2015-05-13 | 青建集团股份公司 | High-strength heat-preservation mortar for buildings |
| CN107572932A (en) * | 2017-10-12 | 2018-01-12 | 贺州学院 | A kind of mortar and preparation method thereof |
| CN112777981A (en) * | 2021-01-08 | 2021-05-11 | 浙江理工大学 | Low-cost high-performance fully-recycled aggregate mortar and preparation method thereof |
| CN116023091A (en) * | 2022-12-12 | 2023-04-28 | 振中建设集团有限公司 | Regenerated rubber thermal insulation mortar and preparation process and application thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081112 |