CN108275952A - For concrete base layer or the thin layer of masonry base plastering dedicated mortar - Google Patents
For concrete base layer or the thin layer of masonry base plastering dedicated mortar Download PDFInfo
- Publication number
- CN108275952A CN108275952A CN201810078301.4A CN201810078301A CN108275952A CN 108275952 A CN108275952 A CN 108275952A CN 201810078301 A CN201810078301 A CN 201810078301A CN 108275952 A CN108275952 A CN 108275952A
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- CN
- China
- Prior art keywords
- mortar
- plastering
- cement
- layer
- thin layer
- 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.)
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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
- C04B28/08—Slag cements
-
- 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
- C04B28/04—Portland cements
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation 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
- 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
- C04B2111/343—Crack resistant 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
It is formulated as follows in mass ratio, cement for concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar：Flyash：Mountain sand：Powdered whiting：Water-retaining agent：Redispersable latex powder is 20 23%：3 3.5%：68 71%：5%：0.11-0.13%：0.4 0.5%.The phenomenon that mortar formula of the present invention can effectively prevent floated coat cracking, hollowing, fall off and working procedure can be reduced.
Description
Technical field
The present invention relates to building wall mortar formula technique fields.
Background technology
Traditional building mortar is mostly live mixing, since of less types, performance is poor, waste of material is larger, matter in addition
It measures unstable, and is unfavorable for environmental protection, concrete base layer is used in engineering or masonry substrate surface often results in coat of plaster
Hollowing cracks, falls off, leaks and other issues, frequently results in and does over again, has not only influenced the duration but also cost is caused to increase, or even directly
Completion of works is influenced to check and accept.
For the plastering sand pulp layer of concrete base layer or masonry base, thin layer plasters dedicated mortar to concrete interface plastering
Before should carry out substrate feather plucking processing, carry after the previous day removes the drifting along of interface, carry out thin layer plastering construction again within second day.Base can
Interface plucking is not done, and plastering once survives, and depth of plastering is 3~5mm, and coat of plaster can take natural curing after the completion of construction.
Plastering to masonry interface, according to the flatness and verticality of wall, thin layer depth of plastering first choice 3mm, maximum is no more than 6mm.
When construction, metope need not water moistening in advance, and float work once survives.After the completion of construction, coat of plaster need not spray water foster
Shield, that is, reduce working procedure, and improve the perception effect of metope.And existing mortar formula, due to being according to commonly smearing
The formula of lime and brick design, the water-retaining property, caking property of mortar itself are poor, and working procedure is more, are needed before plastering in advance to wall
Face watering moistening, also needs to carry out wet curing to coat of plaster after the completion of construction.And plastering layer thickness it is thicker (thickness be 7~
9mm, maximum gauge can exceed that 20mm), it is also easy to produce the building wastes such as a large amount of landing ash in plastering construction, that is, increases construction
Cost causes environmental pollution again, also frequent occurrence coat of plaster cracking, hollowing, the quality FAQs such as fall off.So present is general
Logical plastering mortar formula cannot meet the quality requirement of thin layer plastering.
Invention content
The object of the invention aims to solve the problem that the above-mentioned problems of the prior art, provides one kind and can effectively prevent concrete base layer
Or masonry base course wall coat of plaster cracking, hollowing, the phenomenon that falling off and can reduce working procedure be used for concrete base layer or block
The thin layer plastering dedicated mortar of body base.
To achieve the above object, the technical solution adopted by the present invention is as follows：
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
Cement：Flyash：Mountain sand：Powdered whiting：Water-retaining agent：Redispersable latex powder is 20-23%：3-3.5%：68-71%：
5%：0.11-0.13%：0.4-0.5%.
Cement of the present invention is 32.5 cement of P.S.A cement or P.C；The flyash is II grade of flyash；The mountain
The granularity of sand is no more than 0.6mm, clay content ＜ 5%；The granularity of the powdered whiting is no more than 0.1mm；The water-retaining agent is
Hydroxypropyl methyl cellulose ether；The redispersable latex powder is SWF-05.The viscosity of the hydroxypropyl methyl cellulose ether is
CP NDJ-4 rotational viscometers, 2% aqueous solution 140000mpa.s of mass concentration or more..
Cement in inventive formulation forms cement mortar with water, and cement mortar is wrapped in aggregate surface and fills its gap.
Before hardening, cement mortar plays lubricating action, assigns mixture certain workability, convenient for construction, after cement mortar hardening, then by aggregate
It is cemented to a solid entirety.II grade of flyash (Class F fly ash) is used as a kind of active filler, and mixing has one in mortar
Fixed pozzolanic activity, the later strength growth for being remarkably improved the intensity of mortar, especially mortar are more apparent.Flyash
Grain is fine, and spherical in shape containing a large amount of vitreum microballons, mixes the interior frictional resistance that mortar can be reduced in mortar, effective to improve
The workability of mortar, the grain size of flyash is thinner than cement granules, be filled among pore and stomata in cement gel body,
Keep cement gel body more closely knit.Mountain sand plays skeleton function as gathering materials in mortar hardening, and when mortar is pressurized, gathering materials can
Bear larger load.Mountain fineness of sand control is in 0.6mm hereinafter, clay content ＜ 5%, it is relatively thin could to meet thin layer plastering sand pulp layer
The technological requirement of (3mm or so), otherwise soil be wrapped in sand particle surface, can hinder viscous between cement gel body and sand grains
Knot reduces boundary strength and durability, and increases the drying shrinkage of mortar, and consequence is exactly to directly result in plastering metope cracking.Weight
Matter calcium carbonate is inert filler, has abrasive resistant and certain covering power as putty, change simultaneously the compactness of mortar with
Workability.Hydroxypropyl methyl fiber ether is mortar high-performance water-retaining agent, has extremely strong water holding capacity, can be in Long time scale in sand
Sufficient moisture is kept in slurry, meets workability requirement, is incorporated into mortar and is also played a part of lubrication and easy mix, and
Due to its high-moisture-retention so that when thin layer is plastered, wall need not moisten, it is ensured that the efficient quick of construction and simplified work
Sequence.Present invention determine that the proportioning of high-performance water-retaining agent be by largely analyzing the optimum mix amount determined with verification experimental verification, incorporation
Too little or too much Water-saving effect does not reach requirement and can cause quality problems.Redispersable latex powder can further enhance mortar
Water-retaining property prevents mortar from rapid hardening, drying and cracking occurred, increases the plasticity of mortar, improves the workability of mortar, carries
The cohesive force of high mortar enables it to preferably bond base, prevents mortar sliding phenomenon occur when construction.Present invention determine that
The proportioning of redispersable latex powder is also the optimum mix amounts determined by largely analysis and verification experimental verification, and very few stretch of incorporation is glued
Intensity is connect not reach requirement, it is super to mix and cause to waste.
The present invention is easy to use, adds clear water to stir evenly and can be used.Due to the excellent properties of mortar formula of the present invention, adopt
Concrete base layer or masonry base coat of plaster are made with it, the thickness that concrete base layer or masonry substrate surface smear layer is no more than
3mm, concrete base layer or building block base need not moisten substantially, and minority has the base of particular/special requirement to carry out moistened surface ten minutes
It can be used afterwards, the building mortar formula that can directly plaster in base is greatly reduced working procedure, and can effectively prevent wall
Face coat of plaster cracking, hollowing, the phenomenon that falling off, improve construction quality, and save construction cost.
Specific implementation mode
Embodiment one
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
P.S.A cement：II grade of flyash：Mountain sand：Powdered whiting：Hydroxypropyl methyl cellulose ether (HPMC)：SWF-05 is 20%：
3.5%：70.87%：5%：0.13%：0.5%.
Embodiment two
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
32.5 cement of P.C：II grade of flyash (low calcium)：Mountain sand：Powdered whiting：Hydroxypropyl methyl cellulose ether：SWF-05 is
22.48%：3%：69%：5%：0.12%：0.4%.
Embodiment three
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
32.5 cement of P.C：II grade of flyash：Mountain sand：Powdered whiting：Hydroxypropyl methyl cellulose ether：SWF-05 is 23%：
3.42%：68%：5%：0.11%：0.47%.
Example IV
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
32.5 cement of P.C：II grade of flyash：Mountain sand：Powdered whiting：Hydroxypropyl methyl cellulose ether：SWF-05 is 20%：
3.41%：71%：5%：0.12%：0.47%.
Embodiment five
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
P.S.A cement：II grade of flyash：Mountain sand：Powdered whiting：Hydroxypropyl methyl cellulose ether：SWF-05 is 21%：3.39%：
70%：5%：0.11%：0.5%.
Embodiment six
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
P.S.A cement：II grade of flyash：Mountain sand：Powdered whiting：Hydroxypropyl methyl cellulose ether：SWF-05 is 22%：3.48%：
69%：5%：0.12%：0.4%.
Embodiment seven
For concrete base layer or the thin layer of masonry base plastering dedicated mortar, the mortar formula is as follows in mass ratio,
P.S.A cement：II grade of flyash：Mountain sand：Powdered whiting：Hydroxypropyl methyl cellulose ether：SWF-05 is 23%：3.37%：
68%：5%：0.13%：0.5%.
In above example, the granularity of the mountain sand is no more than 0.6mm, and the granularity of powdered whiting is no more than
0.1mm.The water-retaining agent is hydroxypropyl methyl cellulose ether, and viscosity is CPNDJ-4 rotational viscometers, 2% water of mass concentration
Solution 140000mpa.s or more.P.S.A cement, II grade of flyash, mountain sand, powdered whiting, hydroxypropyl methyl cellulose ether,
SWF-05 is commercially available.
The plastering mortar performance formula of the present invention and the testing result of intensity see the table below：
Thin layer plastering mortar performance and detected intensities
Experiment proves that mortar formula of the invention has following remarkable advantage：Water retention is high, has been more than 99%, bonds
Intensity is big, and 14d tensile bond strengths are more than 0.3MPa, the equal ＞ 7.5MPa of 28d cubic compressive strengths, weatherability height, cracking resistance
Have excellent performance, shrinking percentage it is low.Tested on engineering entity do not occur hollowing, crack, fall off the phenomenon that, all technical is full
Sufficient national standard GB/T25181-2010《Premixing mortar》Related requirement, efficiently solve existing concrete base or masonry base smear
The insoluble common quality problems such as grieshoch cracking, hollowing.
Claims (3)
1. for concrete base layer or the thin layer of masonry base plastering dedicated mortar, which is characterized in that the mortar formula presses matter
It is as follows to measure ratio, cement：Flyash：Mountain sand：Powdered whiting：Water-retaining agent：Redispersable latex powder is 20-23%：3-3.5%：
68-71%：5%：0.11-0.13%：0.4-0.5%.
2. according to claim 1 exist for concrete base layer or the thin layer of masonry base plastering dedicated mortar, feature
In the cement is 32.5 cement of P.S.A cement or P.C；The flyash is II grade of flyash；The granularity of the mountain sand is not
More than 0.6mm, clay content ＜ 5%；The granularity of the powdered whiting is no more than 0.1mm；The water-retaining agent is hydroxypropyl methyl
Cellulose ether；The redispersable latex powder is SWF-05.
3. according to claim 2 exist for concrete base layer or the thin layer of masonry base plastering dedicated mortar, feature
In the viscosity of the hydroxypropyl methyl cellulose ether is CPNDJ-4 rotational viscometers, 2% aqueous solution of mass concentration
More than 140000mpa.s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810078301.4A CN108275952A (en) | 2018-01-26 | 2018-01-26 | For concrete base layer or the thin layer of masonry base plastering dedicated mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810078301.4A CN108275952A (en) | 2018-01-26 | 2018-01-26 | For concrete base layer or the thin layer of masonry base plastering dedicated mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108275952A true CN108275952A (en) | 2018-07-13 |
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ID=62805260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810078301.4A Pending CN108275952A (en) | 2018-01-26 | 2018-01-26 | For concrete base layer or the thin layer of masonry base plastering dedicated mortar |
Country Status (1)
| Country | Link |
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| CN (1) | CN108275952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292077A (en) * | 2021-12-30 | 2022-04-08 | 小飞鱼高新科技发展有限公司 | Environment-friendly thin-layer plastering mortar |
| CN115231874A (en) * | 2022-08-03 | 2022-10-25 | 武汉三源特种建材有限责任公司 | Interface agent for plastering mortar and wall surface treatment process before and after plastering mortar construction |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540286A (en) * | 2017-08-30 | 2018-01-05 | 云南工程建设总承包公司 | It is a kind of to be used for concrete base layer or the thin layer motar of masonry basic unit |
-
2018
- 2018-01-26 CN CN201810078301.4A patent/CN108275952A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540286A (en) * | 2017-08-30 | 2018-01-05 | 云南工程建设总承包公司 | It is a kind of to be used for concrete base layer or the thin layer motar of masonry basic unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292077A (en) * | 2021-12-30 | 2022-04-08 | 小飞鱼高新科技发展有限公司 | Environment-friendly thin-layer plastering mortar |
| CN115231874A (en) * | 2022-08-03 | 2022-10-25 | 武汉三源特种建材有限责任公司 | Interface agent for plastering mortar and wall surface treatment process before and after plastering mortar construction |
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Application publication date: 20180713 |