CN105948565A - Plasticizing reinforcer for dry powder mortar - Google Patents
Plasticizing reinforcer for dry powder mortar Download PDFInfo
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- CN105948565A CN105948565A CN201610471443.8A CN201610471443A CN105948565A CN 105948565 A CN105948565 A CN 105948565A CN 201610471443 A CN201610471443 A CN 201610471443A CN 105948565 A CN105948565 A CN 105948565A
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- parts
- mortar
- dry powder
- side chain
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a plasticizing reinforcer for dry powder mortar. The plasticizing reinforcer is prepared from the following components in parts by weight: 20-25 parts of styrene-acrylic acid copolymer, 15-25 parts of plasticizer, 25-35 parts of pyrauxite, 15-20 parts of glass microballoon, 2-6 parts of silicon dioxide, 6-8 parts of calcium sulfate, 2-6 parts of aluminum hydroxide, 4-6 parts of triisopropanolamine, 5-7 parts of modified sisal fiber, 4-8 parts of calcium carbonate whisker, 15-20 parts of corn flour, 4-6 parts of gelatin, 7-9 parts of mullite and 0.1-0.3 part of organosilicon defoaming agent. The plasticizing reinforcer for dry powder mortar has the advantages of low doping amount, high strength, high slump stability and the like, and is a favorable building additive.
Description
Technical field
The present invention relates to a kind of plasticizing intensifier for dry powder and mortar, belong to building additive technology neck
Territory.
Background technology
Dry powder and mortar, also known as dry mortar powder, be by dry fine aggregate that screening processes and Binder Materials,
Powdered that additive, inserts etc. mix by a certain percentage or graininess New Building Materials.
It has, and product quality is high, production efficiency is high, production cost is low, easy to use, environmental pollution is little,
Be easy to the advantages such as civilized construction, little by little replace scene stirring system, impervious poor, shrinkage value greatly, and
Traditional mortar that quality is unstable, and become the developing direction of building industry.By the group composition of raw material, dry
Powder mortar can be divided into conventional cement mortar, polymer cement mortar, features mortar and Rapid-Repair
Mortar etc..Wherein, conventional cement mortar is the mortar that usage amount is maximum, range is the widest, and it is
By material groups such as Binder Materials, aggregate (dry sand), mineral admixture (predominantly flyash), additives
Become.The popularization of dry powder and mortar and use, be not only greatly improved speed of application, construction quality, Er Qiehuan
Environment pollution is few, it is simple to civilized construction and management, thus improves building industry integral level.
Along with living standards of the people improve and the development of building industry, country and individual are to building
Quality proposes the highest requirement, and improve the quality of building and level it is crucial that improve dry powder
The performance of mortar.But it is as the development of dry powder and mortar, gradually exposes some self defect: be strong
Grade is low for degree, slump-loss is big, workability it is difficult to ensure that.In order to overcome the defect that intensity is low, people
Common solution be to add reinforcing agent in the feed, and slump-loss is big, workability is poor,
It is then to add plasticiser in the feed.The settling mode of even now obtains certain effect, and
Carried out a lot of research, as Chinese patent CN103819117A, CN102976655A,
CN102964077B etc., but the comprcssive strength of dry powder and mortar and slump aspect less than ideal.
This constrains the development of dry powder and mortar to a great extent.Therefore, continue to explore and research dry powder and mortar
Comprcssive strength and the slump be exceptional values.
Summary of the invention
For the comprcssive strength of dry powder and mortar in above-mentioned prior art and the deficiency in terms of the slump, this
Bright to be solved technical problem is that proposing one can be effectively improved comprcssive strength and the slump is steady
Qualitatively for the plasticizing intensifier of dry powder and mortar.
A kind of plasticizing intensifier for dry powder and mortar, is made up of each component of following weight:
Styrene-acrylic copolymer 20～25 parts, plasticiser 15～25 parts, pyrophillite 25～35 parts,
Glass microballoon 15～20 parts, silicon dioxide 2～6 parts, calcium sulfate 6～8 parts, aluminium hydroxide 2～6
Part, triisopropanolamine 4～6 parts, modified sisal fiber 5～7 parts, calcium carbonate crystal whisker 4～8 parts,
Semen Maydis powder 15～20 parts, gelatin 4～6 parts, mullite 7～9 parts, organic silicon defoamer 0.1～0.3
Part.
Preferably,
A kind of plasticizing intensifier for dry powder and mortar, is made up of each component of following weight:
Styrene-acrylic copolymer 22 parts, plasticiser 20 parts, pyrophillite 30 parts, glass microballoon 18
Part, silicon dioxide 4 parts, 7 parts of calcium sulfate, aluminium hydroxide 4 parts, triisopropanolamine 5 parts, modification
Sisal fiber 6 parts, calcium carbonate crystal whisker 6 parts, Semen Maydis powder 18 parts, 5 parts of gelatin, mullite 8 parts,
Organic silicon defoamer 0.2 part.
Described plasticiser be by 4～6 parts of methacrylic acids be main chain grafting PEO side chain polycarboxylic acids,
2～4 parts of acrylic acid are that main chain is grafted EO side chain polycarboxylic acids, 2～4 parts of methacrylic acids are main link
Branch PO side chain polycarboxylic acids, 2～4 parts of methacrylic acids, sodium allylsulfonates are that main chain is grafted EO side chain
Polycarboxylic acids and 0.1～0.3 part of sodium methyl silicate are made.
Preferably,
Described plasticiser be by 5 parts of methacrylic acids be main chain grafting PEO side chain polycarboxylic acids, 3 parts
Acrylic acid is that main chain is grafted EO side chain polycarboxylic acids, 3 parts of methacrylic acids are that main chain is grafted PO side chain
Polycarboxylic acids, 3 parts of methacrylic acids, sodium allylsulfonates are that main chain is grafted EO side chain polycarboxylic acids and 0.2
Part sodium methyl silicate is made.
Described modified sisal fiber is nanomete talc powder/sisal fiber prepared by 120～150 DEG C of hydro-thermals
Composite.
Described pyrophillite, Semen Maydis powder, the mesh number of mullite are 100～200 mesh.
In use, described plasticizing intensifier accounts for the 0.1～0.3% of dry powder and mortar gross weight.
The principle for the plasticizing intensifier of dry powder and mortar of the present invention is as follows:
First, when dry powder and mortar is plus stirring, Styrene-acrylic copolymer can be at mortar granule
Surface self-dispersing, and form polymeric film, film upper part surface pores is particles filled by mortar, makes
Stress is concentrated and is reduced, so that the bending strength of mortar and breaking resistance are improved.Meanwhile, leaf is cured
Stone can improve water retention property, intensity and impermeability, and organic silicon defoamer can reduce the sand that polymer causes
Slurry pore, the addition of these raw materials, it is greatly improved the combination property of dry powder and mortar；
Secondly, glass microballoon, play a part ball when stirring, reduce between dry powder and mortar raw material
Frictional force, destroy the flocculent structure formed between granule, thus improve the mobility of dry powder and mortar
And uniformity；
Again, mullite is as the carrier of plasticiser, and gelatin coatings is on plasticiser surface, it is mixed
When entering in dry powder and mortar, can effectively extend the time of plastication, thus play the maintenance slump
The effect of stability.Meanwhile, by different backbone chemistry structures, side chain kind and the plasticiser of length
Carry out compounded combination, organic-silicon-modified, and " herbicide interactions " occurs, the stream of dry powder and mortar can be improved
Dynamic property, also can make it have good slump holding capacity；
Finally, inorganic constituents (silicon dioxide, calcium sulfate, aluminium hydroxide) and organic principle (three are used
Isopropanolamine) improve the intensity of dry powder and mortar.Meanwhile, modified sisal fiber, calcium carbonate are also used
Whisker and Semen Maydis powder improve the intensity of dry powder and mortar further.Wherein, modified sisal fiber have employed water
Thermal activation and nanotechnology are modified so that the combination property of dry powder and mortar is more excellent；Semen Maydis powder has
Complicated tree-like branched structure, can improve the microstructure of dry powder and mortar, improves density, thus carries
The performance of high dry powder and mortar.
Compared with prior art, the invention has the beneficial effects as follows:
1, the ball effect of glass microballoon, improves mobility and the uniformity of dry powder and mortar；
2, mullite is as the carrier of plasticiser, and gelatin coatings is on plasticiser surface, it is achieved maintain
The purpose of slump stability.Meanwhile, by different backbone chemistry structures, side chain kind and length
Plasticiser carries out compounded combination, organic-silicon-modified, and " herbicide interactions " occurs, and can improve dry powder sand
The mobility of slurry, also can make it have good slump holding capacity；
3, take full advantage of hydro-thermal activation, nanotechnology modification sisal fiber and there is complicated tree-like point
Prop up the Semen Maydis powder of structure, can effectively optimize the performance of dry powder and mortar；
4, the plasticizing intensifier of the present invention has low volume, high intensity, the high slump stably
The advantages such as property, are a kind of good building additives.
Detailed description of the invention
The present invention provides a kind of plasticizing intensifier for dry powder and mortar, for making the purpose of the present invention, skill
Art scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.
A kind of plasticizing intensifier for dry powder and mortar, is made up of each component of following weight:
Styrene-acrylic copolymer 20～25 parts, plasticiser 15～25 parts, pyrophillite 25～35 parts,
Glass microballoon 15～20 parts, silicon dioxide 2～6 parts, calcium sulfate 6～8 parts, aluminium hydroxide 2～6
Part, triisopropanolamine 4～6 parts, modified sisal fiber 5～7 parts, calcium carbonate crystal whisker 4～8 parts,
Semen Maydis powder 15～20 parts, gelatin 4～6 parts, mullite 7～9 parts, organic silicon defoamer 0.1～0.3
Part；
Described plasticiser be by 4～6 parts of methacrylic acids be main chain grafting PEO side chain polycarboxylic acids,
2～4 parts of acrylic acid are that main chain is grafted EO side chain polycarboxylic acids, 2～4 parts of methacrylic acids are main link
Branch PO side chain polycarboxylic acids, 2～4 parts of methacrylic acids, sodium allylsulfonates are that main chain is grafted EO side chain
Polycarboxylic acids and 0.1～0.3 part of sodium methyl silicate are made；
Described modified sisal fiber is nanomete talc powder/sisal fiber prepared by 120～150 DEG C of hydro-thermals
Composite；
Described pyrophillite, Semen Maydis powder, the mesh number of mullite are 100～200 mesh；
In use, described plasticizing intensifier accounts for the 0.1～0.3% of dry powder and mortar gross weight.
Embodiment 1
A kind of plasticizing intensifier for dry powder and mortar, is made up of each component of following weight:
Styrene-acrylic copolymer 22 parts, plasticiser 20 parts, pyrophillite 30 parts, glass microballoon 18
Part, silicon dioxide 4 parts, 7 parts of calcium sulfate, aluminium hydroxide 4 parts, triisopropanolamine 5 parts, modification
Sisal fiber 6 parts, calcium carbonate crystal whisker 6 parts, Semen Maydis powder 18 parts, 5 parts of gelatin, mullite 8 parts,
Organic silicon defoamer 0.2 part；
Described plasticiser be by 5 parts of methacrylic acids be main chain grafting PEO side chain polycarboxylic acids, 3 parts
Acrylic acid is that main chain is grafted EO side chain polycarboxylic acids, 3 parts of methacrylic acids are that main chain is grafted PO side chain
Polycarboxylic acids, 3 parts of methacrylic acids, sodium allylsulfonates are that main chain is grafted EO side chain polycarboxylic acids and 0.2
Part sodium methyl silicate is made.
Embodiment 2
A kind of plasticizing intensifier for dry powder and mortar, is made up of each component of following weight:
Styrene-acrylic copolymer 20 parts, plasticiser 15 parts, pyrophillite 25 parts, glass microballoon 15
Part, silicon dioxide 2 parts, 6 parts of calcium sulfate, aluminium hydroxide 2 parts, triisopropanolamine 4 parts, modification
Sisal fiber 5 parts, calcium carbonate crystal whisker 4 parts, Semen Maydis powder 15 parts, 4 parts of gelatin, mullite 7 parts,
Organic silicon defoamer 0.1 part；
Described plasticiser be by 4 parts of methacrylic acids be main chain grafting PEO side chain polycarboxylic acids, 2 parts
Acrylic acid is that main chain is grafted EO side chain polycarboxylic acids, 2 parts of methacrylic acids are that main chain is grafted PO side chain
Polycarboxylic acids, 2 parts of methacrylic acids, sodium allylsulfonates are that main chain is grafted EO side chain polycarboxylic acids and 0.1
Part sodium methyl silicate is made.
Embodiment 3
A kind of plasticizing intensifier for dry powder and mortar, is made up of each component of following weight:
Styrene-acrylic copolymer 25 parts, plasticiser 25 parts, pyrophillite 35 parts, glass microballoon 20
Part, silicon dioxide 6 parts, 8 parts of calcium sulfate, aluminium hydroxide 6 parts, triisopropanolamine 6 parts, modification
Sisal fiber 7 parts, calcium carbonate crystal whisker 8 parts, Semen Maydis powder 20 parts, 6 parts of gelatin, mullite 9 parts,
Organic silicon defoamer 0.3 part；
Described plasticiser be by 6 parts of methacrylic acids be main chain grafting PEO side chain polycarboxylic acids, 4 parts
Acrylic acid is that main chain is grafted EO side chain polycarboxylic acids, 4 parts of methacrylic acids are that main chain is grafted PO side chain
Polycarboxylic acids, 4 parts of methacrylic acids, sodium allylsulfonates are that main chain is grafted EO side chain polycarboxylic acids and 0.3
Part sodium methyl silicate is made.
It addition, for the impact of performance that the present invention is described, applicant carried out test, result of the test is such as
Shown in table 1:
The slump of table 1 dry powder and mortar and comprcssive strength
As shown in Table 1, the plasticizing intensifier for dry powder and mortar provided by the present invention has high resisting
Compressive Strength and slump stability, this shows that the plasticizing for dry powder and mortar provided by the present invention strengthens
The superior performance of agent, is a kind of good building additive.
Certainly, it is that the preferred embodiments of the disclosure is described in detail, not with this above
Limit the practical range of the present invention, the equivalence change that all principles under this invention, structure and structure are made
Change, all should be covered by protection scope of the present invention.
Claims (5)
1. the plasticizing intensifier for dry powder and mortar, it is characterised in that: by following weight
Each component make: Styrene-acrylic copolymer 20～25 parts, plasticiser 15～25 parts, leaf
Cured stone 25～35 parts, glass microballoon 15～20 parts, silicon dioxide 2～6 parts, calcium sulfate 6～8 parts,
Aluminium hydroxide 2～6 parts, triisopropanolamine 4～6 parts, modified sisal fiber 5～7 parts, calcium carbonate
Whisker 4～8 parts, Semen Maydis powder 15～20 parts, gelatin 4～6 parts, mullite 7～9 parts, organosilicon
Defoamer 0.1～0.3 part.
Plasticizing intensifier for dry powder and mortar the most according to claim 1, it is characterised in that:
It is made up of each component of following weight: Styrene-acrylic copolymer 22 parts, plasticiser 20
Part, pyrophillite 30 parts, glass microballoon 18 parts, silicon dioxide 4 parts, 7 parts of calcium sulfate, hydroxide
4 parts of aluminum, triisopropanolamine 5 parts, modified sisal fiber 6 parts, calcium carbonate crystal whisker 6 parts, Semen Maydis powder
18 parts, 5 parts of gelatin, mullite 8 parts, organic silicon defoamer 0.2 part.
Plasticizing intensifier for dry powder and mortar the most according to claim 2, it is characterised in that:
Described plasticiser be by 4～6 parts of methacrylic acids be main chain grafting PEO side chain polycarboxylic acids, 2～4
Part acrylic acid is that main chain is grafted EO side chain polycarboxylic acids, 2～4 parts of methacrylic acids are that main chain is grafted PO
Side chain polycarboxylic acids, 2～4 parts of methacrylic acids, sodium allylsulfonates are that main chain is grafted EO side chain polycarboxylic acids
Make with 0.1～0.3 part of sodium methyl silicate.
Plasticizing intensifier for dry powder and mortar the most according to claim 3, it is characterised in that:
Described plasticiser is to be that main chain is grafted PEO side chain polycarboxylic acids, 3 parts of propylene by 5 parts of methacrylic acids
Acid is main chain grafting EO side chain polycarboxylic acids, 3 parts of methacrylic acids are that main chain is grafted the poly-carboxylic of PO side chain
Acid, 3 parts of methacrylic acids, sodium allylsulfonates are main chain grafting EO side chain polycarboxylic acids and 0.2 part of first
Base sodium silicate is made.
Plasticizing intensifier for dry powder and mortar the most according to claim 1 and 2, its feature exists
In: described modified sisal fiber is nanomete talc powder/sisal fiber prepared by 120～150 DEG C of hydro-thermals
Composite；Described pyrophillite, Semen Maydis powder, the mesh number of mullite are 100～200 mesh；Make
Used time, described plasticizing intensifier accounts for the 0.1～0.3% of dry powder and mortar gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471443.8A CN105948565B (en) | 2016-06-24 | 2016-06-24 | A kind of plasticizing intensifier for dry powder and mortar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610471443.8A CN105948565B (en) | 2016-06-24 | 2016-06-24 | A kind of plasticizing intensifier for dry powder and mortar |
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| Publication Number | Publication Date |
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| CN105948565A true CN105948565A (en) | 2016-09-21 |
| CN105948565B CN105948565B (en) | 2018-05-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007009408A1 (en) * | 2005-07-16 | 2007-01-25 | Rode Betontechnologie Gmbh | Mixture for producing self-compacting concrete |
| CN101333092A (en) * | 2007-06-25 | 2008-12-31 | 深圳市海川实业股份有限公司 | Cement concrete superplasticizer and method for preparing same |
| CN102690077A (en) * | 2011-03-25 | 2012-09-26 | 苏琳 | Anticorrosion expansion compacting agent composition and preparation method thereof |
| CN103408242A (en) * | 2013-08-28 | 2013-11-27 | 北京金隅水泥节能科技有限公司 | Super slump type polycarboxylate water reducing agent for bored pile concrete and preparation method thereof |
| CN104909605A (en) * | 2015-05-25 | 2015-09-16 | 重庆市建筑科学研究院 | Composite admixture for high strength concrete and preparation method thereof |
-
2016
- 2016-06-24 CN CN201610471443.8A patent/CN105948565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007009408A1 (en) * | 2005-07-16 | 2007-01-25 | Rode Betontechnologie Gmbh | Mixture for producing self-compacting concrete |
| CN101333092A (en) * | 2007-06-25 | 2008-12-31 | 深圳市海川实业股份有限公司 | Cement concrete superplasticizer and method for preparing same |
| CN102690077A (en) * | 2011-03-25 | 2012-09-26 | 苏琳 | Anticorrosion expansion compacting agent composition and preparation method thereof |
| CN103408242A (en) * | 2013-08-28 | 2013-11-27 | 北京金隅水泥节能科技有限公司 | Super slump type polycarboxylate water reducing agent for bored pile concrete and preparation method thereof |
| CN104909605A (en) * | 2015-05-25 | 2015-09-16 | 重庆市建筑科学研究院 | Composite admixture for high strength concrete and preparation method thereof |
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| Publication number | Publication date |
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| CN105948565B (en) | 2018-05-22 |
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