CN101857404A - Light mortar with high performance and low heat conduction - Google Patents

Light mortar with high performance and low heat conduction Download PDF

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Publication number
CN101857404A
CN101857404A CN201010195668A CN201010195668A CN101857404A CN 101857404 A CN101857404 A CN 101857404A CN 201010195668 A CN201010195668 A CN 201010195668A CN 201010195668 A CN201010195668 A CN 201010195668A CN 101857404 A CN101857404 A CN 101857404A
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China
Prior art keywords
heat conduction
low heat
high performance
light mortar
mortar
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Application number
CN201010195668A
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Chinese (zh)
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CN101857404B (en
Inventor
解新刚
张永进
张宜萍
成时亮
辛春华
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SHANGHAI INSURING POLYMER MATERIALS CO Ltd
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SHANGHAI INSURING POLYMER MATERIALS CO Ltd
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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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • 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
    • 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

Abstract

The invention provides light mortar with high performance and low heat conduction, which comprises cement, fly ash, small expanded and vitrified balls, triple superphosphate, acrylic acid re-dispersible rubber powder or PVA (Polyvinyl Acetate) and other various addictives. By adopting the acrylic acid rubber powder or PVA with excellent ageing resistance and water-absorbing resistance and designing and optimizing a formula, the prepared light mortar with low heat conduction not only has excellent bonding performance, compressive strength, breaking strength and other performances, but also has excellent ageing resistance and better heat-insulating performance and can be widely applied to heat insulation of a building wall body.

Description

A kind of light mortar with high performance and low heat conduction
Technical field
The present invention relates to a kind of low heat conduction light mortar, this material have concurrently insulation, heat insulation, do not fire function, the fire-blocking belt that also can be used as simultaneously the alignment material and the exterior wall heat-preserving system of interior wall, dividing wall, and can effectively prevent serial problems such as thermal insulation wall surface hollowing, cracking, fire-protection rating, can be used for the building heat preservation field.
Background technology
A very important measure of building energy conservation is set up insulation energy-saving system to body of wall exactly; the wall thermal insulating energy conserving system of China mainly contains exterior wall internal insulation system, the sandwich thermal insulated system of body of wall and external thermal insulation system at present; wherein the external-wall external-insulation energy-saving system has become the main flow of wall thermal insulating form with its numerous advantage; its major advantage is to protect agent structure; prolong the buildings life-span; the phenomenon of basically eliminate " heat bridge " helps ambient-temp-stable etc.In outer heat preservation system, the used material of thermal insulation layer mainly is styrofoam and extruded sheet etc. at present, and its thermal conductivity is lower, can satisfy the energy-conservation requirement of buildings, and fire-protection rating does not but reach non-combustible requirement.Appearance along with the Ministry of Public Security, Ministry of Construction's " covil construction outer heat preservation system and decoration of exterior wall fire prevention temporary provisions ", fire protection requirement to associated materials and heat-insulation system further improves, existing like this styrofoam and extruded sheet and system difficulty reach requirement, need to accelerate the exploitation of novel wall lagging material and heat-insulation system.Research and facts have proved, low heat conduction light mortar lagging material is the first-selection of present heat insulating material, and be combined into heat-insulation system can satisfy warm geographic energy-conservation requirement such as Xia Redong cryogenic region and Xia Re and other heat-insulation systems the fire-blocking belt requirement is set.
The low heat conduction light mortar has a series of advantage, thereby it is had ready conditions as new lagging material, thermal conductivity lower (≤0.070W/ (mK)) for example, heat insulating effect is also good, the ultimate compression strength height (〉=0.20MPa), in present all lagging materials, belong to the non-fire material of mineral-type, ageing-resistant, chemical stability good, and site operation can be realized stdn, industrialization, and is easy and simple to handle, and its operating efficiency exceeds several times of other heat preservation construction modes.
But still there is adhesiveproperties in the inorganic heat insulation mortar system that adopts on the existing market, the insufficient shortcomings in aspect such as ultimate compression strength and durability energy.
Summary of the invention
The purpose of this invention is to provide a kind of have good adhesiveproperties, good anti-folding, ultimate compression strength, excellent durability can and the light mortar with high performance and low heat conduction of the anti-accumulation of salt in the surface soil.
For achieving the above object, the invention provides a kind of light mortar with high performance and low heat conduction, its raw material in weight part is composed as follows:
Cement 65-80
Flyash 12-25
Expanded and vitrified small ball 100
Re-dispersible glue powder 0.7-1
Coarse whiting 2.5-5
Ether of cellulose 0.3-0.5
Starch ethers 0.03-0.06
PP fiber 0.1-0.2
Dispersion agent 0.02-0.05
Hydrophober 0.1-0.2
Expansion air entrapment agent 0.02-0.05
Described cement is PO42.5;
Described re-dispersible glue powder is vinylformic acid rubber powder or polyvinyl alcohol;
Described ether of cellulose is that viscosity is at the methyl cellulose ether more than 75000;
Described hydrophober is organosilicon moisture repellent;
Described flyash is 2 grades or above grating;
Described coarse whiting is a 200-250 purpose coarse whiting;
Described expanded and vitrified small ball is for to be made through technologies such as expansion, vitreous by glassiness slag ore in sand form, and surperficial vitreous is sealed, is irregular spherical, and inside is the inorganic particulate material of porous air cavity configuration.
Light mortar with high performance and low heat conduction of the present invention; with cement is the inorganic gel material; adopt the modification of vinylformic acid re-dispersible glue powder; add expanded and vitrified small ball; flyash etc. have the light material of heat insulating; coarse whiting and other auxiliary agent are formulated; because the vinylformic acid re-dispersible glue powder is compared EVA rubber powder commonly used or PVA; excellent in water resistance energy and ageing-resistant performance are arranged; can guarantee that the low heat conduction light mortar has good bonding strength and ageing-resistant performance; by studying its different addition; the low heat conduction light mortar solidifies back vinylformic acid rubber powder can form the successive rete therein; in addition; owing to adopted high performance cement and coarse whiting, can guarantee that by adjusting the prescription composition low heat conduction light mortar of the present invention has excellent anti-folding; resistance to compression; high bonding; physicalies such as low heat conduction.
Embodiment
Embodiment 1
A kind of light mortar with high performance and low heat conduction of the present invention, the batching composition and the weight part meter of its first specific embodiment are as shown in table 1:
Table 1
Sequence number Material name Model Weight part
??1 Cement ??425 ??70
??2 Flyash 2 grades ??23
??3 Re-dispersible glue powder (PVA) ??2488 ??0.85
??4 Coarse whiting 200 orders ??5
??5 Ether of cellulose ??HPMC75000 ??0.5
??6 The starch ethers element ??FP6 ??0.06
??7 Dispersion agent ??F10 ??0.05
Sequence number Material name Model Weight part
??8 Hydrophober ??- ??0.15
??9 The expansion air entrapment agent ??- ??0.04
??10 The PP fiber ??6mm ??0.2
??11 Expanded and vitrified small ball 100 orders ??100
The preparation method of low heat conduction light mortar of the present invention is: according to proportioning raw materials, the 1-10 raw material is added in the mixed/stirred bucket successively, and reinforced principle is for adding the big raw material of consumption earlier, and the back adds the less raw material of consumption, mix packing, No. 11 raw material independent packagings are stand-by.
Low heat conduction light mortar using method of the present invention is: the powder that the 1-10 raw material stirring for preparing is mixed gained joins in the mixing agitation vat, be metered into 120% water, stir, adding No. 11 materials stirs, ageing is stirred once more after 5 minutes and can be used, can evenly smear exterior wall surface by instruments such as spatulas, dry solidification gets final product, need smear according to the design thickness layering, thickness can be at 10-15mm for the first time, need compress compacting, treat to smear to design thickness once more behind the surface drying.The excellent property of this adiabator layer, its performance index are as shown in table 2:
Table 2
Figure BSA00000149109400041
Embodiment 2
The batching composition and the weight part meter of second specific embodiment of a kind of light mortar with high performance and low heat conduction of the present invention are as shown in table 3:
Table 3
Sequence number Material name Model Weight part
??1 Cement ??425 ??73
??2 Flyash 2 grades ??21
??3 Re-dispersible glue powder (PVA) ??2488 ??0.95
??4 Coarse whiting 200 orders ??2.55
??5 Ether of cellulose ??HPMC75000 ??0.5
??6 The starch ethers element ??FP6 ??0.06
??7 Dispersion agent ??F10 ??0.05
??8 Hydrophober ??0.15
??9 The expansion air entrapment agent ??0.05
??10 The PP fiber ??6mm ??0.2
??11 Expanded and vitrified small ball 100 orders ??100
The preparation and the using method of the low heat conduction light mortar of present embodiment are substantially the same manner as Example 1; The excellent property of this low heat conduction light screed has good aging properties and other physicals, and its performance index are as shown in table 4:
Table 4
Figure BSA00000149109400051
Embodiment 3
The batching composition and the weight part meter of the 3rd specific embodiment of a kind of light mortar with high performance and low heat conduction of the present invention are as shown in table 5:
Table 5
Project Material name Model Weight part
??1 Cement ??425 ??78
??2 Flyash 2 grades ??18
??3 Re-dispersible glue powder (PVA) ??2488 ??0.80
??4 Coarse whiting 200 orders ??2.2
??5 Ether of cellulose ??HPMC75000 ??0.5
??6 The starch ethers element ??FP6 ??0.06
??7 Dispersion agent ??F10 ??0.05
Project Material name Model Weight part
??8 Hydrophober ??0.15
??9 The expansion air entrapment agent ??0.04
??10 The PP fiber ??6mm ??0.2
??11 Expanded and vitrified small ball 100 orders ??100
The preparation and the using method of the low heat conduction light mortar of present embodiment are substantially the same manner as Example 1.The excellent property of this low heat conduction light screed has good aging properties and other physicals, and its performance index are as shown in table 6:
Table 6
Figure BSA00000149109400061
Embodiment 4
The batching composition and the weight part meter of the 4th specific embodiment of a kind of light mortar with high performance and low heat conduction of the present invention are as shown in table 7:
Table 7
Project Material name Model Weight part
??1 Cement ??425 ??65
??2 Flyash 2 grades ??25
??3 Re-dispersible glue powder (PVA) ??2488 ??1.0
??4 Coarse whiting 200 orders ??2.5
??5 Ether of cellulose ??HPMC75000 ??0.3
??6 The starch ethers element ??FP6 ??0.03
??7 Dispersion agent ??F10 ??0.02
??8 Hydrophober ??- ??0.1
??9 The expansion air entrapment agent ??- ??0.02
??10 The PP fiber ??6mm ??0.1
??11 Expanded and vitrified small ball 100 orders ??100
The preparation and the using method of the low heat conduction light mortar of present embodiment are substantially the same manner as Example 1.The excellent property of this low heat conduction light screed has good aging properties and other physicals, and its performance index are as shown in table 8:
Table 8
Figure BSA00000149109400081
Embodiment 5
The batching composition and the weight part meter of the 5th specific embodiment of a kind of light mortar with high performance and low heat conduction of the present invention are as shown in table 9:
Table 9
Project Material name Model Weight part
??1 Cement ??425 ??80
??2 Flyash 2 grades ??12
??3 Re-dispersible glue powder (PVA) ??2488 ??0.70
??4 Coarse whiting 200 orders ??2.2
??5 Ether of cellulose ??HPMC75000 ??0.5
??6 The starch ethers element ??FP6 ??0.06
??7 Dispersion agent ??F10 ??0.05
Project Material name Model Weight part
??8 Hydrophober ??- ??0.20
??9 The expansion air entrapment agent ??- ??0.04
??10 The PP fiber ??6mm ??0.2
??11 Expanded and vitrified small ball 100 orders ??100
The preparation and the using method of the low heat conduction light mortar of present embodiment are substantially the same manner as Example 1.The excellent property of this low heat conduction light screed has good aging properties and other physicals, and its performance index are as shown in table 10:
Table 10
Figure BSA00000149109400091

Claims (9)

1. a light mortar with high performance and low heat conduction is characterized in that, and is composed as follows in the raw material of weight part:
Cement 65-80
Flyash 12-25
Expanded and vitrified small ball 100
Re-dispersible glue powder 0.7-1
Coarse whiting 2.5-5
Ether of cellulose 0.3-0.5
Starch ethers 0.03-0.06
PP fiber 0.1-0.2
Dispersion agent 0.02-0.05
Hydrophober 0.1-0.2
Expansion air entrapment agent 0.02-0.05.
2. light mortar with high performance and low heat conduction as claimed in claim 1 is characterized in that, described cement is PO42.5.
3. light mortar with high performance and low heat conduction as claimed in claim 1 is characterized in that, described re-dispersible glue powder is vinylformic acid rubber powder or polyvinyl alcohol.
4. light mortar with high performance and low heat conduction as claimed in claim 1 is characterized in that, described ether of cellulose is the normal ether of methylcellulose gum.
5. light mortar with high performance and low heat conduction as claimed in claim 4 is characterized in that the viscosity of described methyl cellulose ether is more than 75000.
6. light mortar with high performance and low heat conduction as claimed in claim 1 is characterized in that, described hydrophober is organosilicon moisture repellent.
7. light mortar with high performance and low heat conduction as claimed in claim 1 is characterized in that, described flyash is 2 grades or above grating.
8. light mortar with high performance and low heat conduction as claimed in claim 1 is characterized in that, described coarse whiting is a 200-250 purpose coarse whiting.
9. light mortar with high performance and low heat conduction as claimed in claim 1; it is characterized in that; described expanded and vitrified small ball is for to be made through technologies such as expansion, vitreous by glassiness slag ore in sand form, and surperficial vitreous is sealed, is irregular spherical, and inside is the inorganic particulate material of porous air cavity configuration.
CN2010101956688A 2010-06-08 2010-06-08 Light mortar with high performance and low heat conduction Expired - Fee Related CN101857404B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121280A (en) * 2011-01-26 2011-07-13 李明军 Vitrified micro bubble composite rock wool fireproof insulating plate and manufacturing method thereof
CN102704583A (en) * 2011-03-28 2012-10-03 王宪辉 Compound heat preservation system
CN102704581A (en) * 2011-03-28 2012-10-03 王宪辉 Compound heat preservation system
CN102704580A (en) * 2011-03-28 2012-10-03 王宪辉 Composite heat-insulation system
CN111517710A (en) * 2020-04-29 2020-08-11 华新水泥股份有限公司 Hydrophobic vitrified micro bubble thermal insulation mortar and preparation method thereof
EP3325426B1 (en) * 2015-07-23 2021-05-19 Knauf Gips KG Fast-drying screed and screed mixture for producing the screed
CN114644494A (en) * 2022-04-22 2022-06-21 北京悦筑新天节能科技有限公司 Flexible light leveling mortar and preparation method and application thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101549978A (en) * 2009-05-13 2009-10-07 同济大学 Sepiolite fiber modified vitrification bead thermal insulation mortar

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101549978A (en) * 2009-05-13 2009-10-07 同济大学 Sepiolite fiber modified vitrification bead thermal insulation mortar

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121280A (en) * 2011-01-26 2011-07-13 李明军 Vitrified micro bubble composite rock wool fireproof insulating plate and manufacturing method thereof
CN102704583A (en) * 2011-03-28 2012-10-03 王宪辉 Compound heat preservation system
CN102704581A (en) * 2011-03-28 2012-10-03 王宪辉 Compound heat preservation system
CN102704580A (en) * 2011-03-28 2012-10-03 王宪辉 Composite heat-insulation system
EP3325426B1 (en) * 2015-07-23 2021-05-19 Knauf Gips KG Fast-drying screed and screed mixture for producing the screed
US11028017B2 (en) 2015-07-23 2021-06-08 Knauf Gips Kg Fast-drying screed and screed mixture for producing the screed
CN111517710A (en) * 2020-04-29 2020-08-11 华新水泥股份有限公司 Hydrophobic vitrified micro bubble thermal insulation mortar and preparation method thereof
CN114644494A (en) * 2022-04-22 2022-06-21 北京悦筑新天节能科技有限公司 Flexible light leveling mortar and preparation method and application thereof

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