CN105503030A - Alkali inhibitor used for ordinary Portland cement - Google Patents
Alkali inhibitor used for ordinary Portland cement Download PDFInfo
- Publication number
- CN105503030A CN105503030A CN201511025021.XA CN201511025021A CN105503030A CN 105503030 A CN105503030 A CN 105503030A CN 201511025021 A CN201511025021 A CN 201511025021A CN 105503030 A CN105503030 A CN 105503030A
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- CN
- China
- Prior art keywords
- alkaline agent
- portland cement
- ordinary portland
- press down
- cellulose
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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
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/603—Agents for controlling alkali-aggregate reactions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an alkali inhibitor used for ordinary Portland cement. The alkali inhibitor at least comprises cellulose ether, aluminium potassium sulfate, rosin and n-octyl triethoxysilane. The alkali inhibitor used for ordinary Portland cement has the effect of obviously improving the efflorescence resistance and durability of cement matrices under the condition that the properties of cement mortar and concrete and cement-based materials can be ensured not to be reduced or to be improved to some extent, so that the quality, appearance aesthetics and durability of buildings are greatly improved and meanwhile the maintenance costs of the buildings are reduced.
Description
Technical field
The present invention relates to building material field, particularly a kind of for ordinary Portland cement press down alkaline agent.
Background technology
The major cause that the anti-alkali of metope is commonly called as cement frosting is the carbon dioxide reaction in cement product calcium hydroxide and air, generates tosca at concrete product on the surface.Or: in hydrated product aqua calcis, when after water evaporation, calcium hydroxide crystallization in concrete crack is also assembled on its surface.In addition, Wingdale or build a house with in sand, containing a certain amount of solvable organism containing alkali, the oxyhydroxide formed by them, carbonate or other alkali salt solution ooze out " frosting salt " and frosting at concrete surface with comparalive ease, promptly.The easy accumulation of salt in the surface soil of ordinary Portland cement product surface, affects the outward appearance of cement products, if any banded white dot, mainly because Ca2+, the Mg2+ in cement is along with water migration is to cement products surface.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide and a kind ofly press down alkaline agent for ordinary Portland cement, thus overcome the easy accumulation of salt in the surface soil of Portland cement product surface, affect the shortcoming of cement products outward appearance.
For achieving the above object, the invention provides a kind of for ordinary Portland cement press down alkaline agent, described press down alkaline agent at least comprise: ether of cellulose, potassium aluminium sulfate, rosin and n-octytriethoxysilane.
Preferably, in technique scheme, count by weight, the described alkaline agent that presses down at least comprises following component: ether of cellulose 0.05-0.1 part, potassium aluminium sulfate 0.01 ~ 0.05 part, rosin 0.01 ~ 0.1 part, n-octytriethoxysilane 0.01 ~ 0.05 part.
Preferably, in technique scheme, the described alkaline agent that presses down also comprises: active silica, defoamer, naphthalene sulfonic acidformaldehyde condensation product sodium salt and ethylenediamine tetraacetic acid (EDTA).
Preferably, in technique scheme, count by weight, the described alkaline agent that presses down at least comprises following component: active silica 1-5 part, defoamer 0.01 ~ 0.1 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.1 ~ 1 part and ethylenediamine tetraacetic acid (EDTA) 0.05 ~ 0.1 part.
Preferably, in technique scheme, agent by weight comprises following component: ether of cellulose 0.07 part, potassium aluminium sulfate 0.04 part, rosin 0.06 part, n-octytriethoxysilane 0.03 part, active silica 4 parts, defoamer 0.03 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.7 part and ethylenediamine tetraacetic acid (EDTA) 0.08 part.
Preferably, in technique scheme, described defoamer is one or more in polypropylene glycerol aether, polyoxyethylene polyoxypropylene glyceryl ether, polydimethylsiloxane.
Preferably, in technique scheme, described ether of cellulose is one or more in hydroxyethylmethyl-cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, Natvosol, Vltra tears.
Preferably, in technique scheme, when pressing down alkaline agent described in using, the described mass ratio pressing down alkaline agent and ordinary Portland cement is 0.05-0.1:100.
Compared with prior art, the present invention has following beneficial effect: the present invention be used for ordinary Portland cement press down alkaline agent, when sand-cement slurry can be ensured and concrete water cement-based material performance does not reduce or increases, significantly improve the anti-accumulation of salt in the surface soil and the weather resistance of cement matrix.Thus the quality of buildings and the aesthetic feeling of outward appearance and weather resistance are all had greatly improved, reduce the maintenance cost of buildings simultaneously.
Embodiment
Below in conjunction with specific embodiment, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Embodiment 1
For ordinary Portland cement press down an alkaline agent, by weight meter comprise following component: hydroxyethylmethyl-cellulose 0.04 part, ethyl cellulose 0.03 part, potassium aluminium sulfate 0.04 part, rosin 0.06 part, n-octytriethoxysilane 0.03 part, active silica 4 parts, polypropylene glycerol aether 0.03 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.7 part and ethylenediamine tetraacetic acid (EDTA) 0.08 part.
During use, the mass ratio pressing down alkaline agent and ordinary Portland cement is 0.07:100.
Embodiment 2
For ordinary Portland cement press down an alkaline agent, by weight meter comprise following component: ethyl cellulose 0.1 part, potassium aluminium sulfate 0.01 ~ 0.05 part, rosin 0.1 part, n-octytriethoxysilane 0.05 part, active silica 5 parts, polydimethylsiloxane 0.01 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 1 part and ethylenediamine tetraacetic acid (EDTA) 0.05 part.
During use, the mass ratio pressing down alkaline agent and ordinary Portland cement is 0.05:100.
Embodiment 3
For ordinary Portland cement press down an alkaline agent, by weight meter comprise following component: Vltra tears 0.03 part, carboxymethyl cellulose 0.04 part, potassium aluminium sulfate 0.05 part, rosin 0.01 part, n-octytriethoxysilane 0.03 part, active silica 5 parts, polypropylene glycerol aether 0.1 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.1 part and ethylenediamine tetraacetic acid (EDTA) 0.1 part.
During use, the mass ratio pressing down alkaline agent and ordinary Portland cement is 0.1:100.
Embodiment 4
For ordinary Portland cement press down an alkaline agent, by weight meter comprise following component: hydroxyethylmethyl-cellulose 0.09 part, potassium aluminium sulfate 0.01 part, rosin 0.1 part, n-octytriethoxysilane 0.03 part, active silica 5 parts, polypropylene glycerol aether 0.05 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.5 part and ethylenediamine tetraacetic acid (EDTA) 0.07 part.
During use, the mass ratio pressing down alkaline agent and ordinary Portland cement is 0.07:100.
Embodiment 5
For ordinary Portland cement press down an alkaline agent, by weight meter comprise following component: benzyl cellulose 0.07 part, potassium aluminium sulfate 0.04 part, rosin 0.06 part, n-octytriethoxysilane 0.04 part, active silica 3 parts, polypropylene glycerol aether 0.05 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.9 part and ethylenediamine tetraacetic acid (EDTA) 0.1 part.
The described mass ratio pressing down alkaline agent and ordinary Portland cement is 0.09:100.
Comparative example 1
For ordinary Portland cement press down an alkaline agent, by weight meter comprise following component: active silica 5 parts, polypropylene glycerol aether 0.1 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.7 part and ethylenediamine tetraacetic acid (EDTA) 0.08 part.
The described mass ratio pressing down alkaline agent and ordinary Portland cement is 0.07:100.
Comparative example 2
For ordinary Portland cement press down an alkaline agent, by weight meter comprise following component: hydroxyethylmethyl-cellulose 0.08 part, potassium aluminium sulfate 0.04 part, active silica 4 parts, polypropylene glycerol aether 0.08 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.8 part and ethylenediamine tetraacetic acid (EDTA) 0.07 part.
The described mass ratio pressing down alkaline agent and ordinary Portland cement is 0.07:100.
Comparative example 3
This comparative example is blank test, is ordinary Portland cement, does not add and presses down alkaline agent.
The performance test methods of above-described embodiment and the general mortar of the anti-body of wall of comparative example is with reference to JC/T1024-2007 wall facing mortar standard, and performance test is as shown in table 1.
Table 1: mortar performance detects
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (8)
1. for ordinary Portland cement press down an alkaline agent, it is characterized in that, described press down alkaline agent at least comprise: ether of cellulose, potassium aluminium sulfate, rosin and n-octytriethoxysilane.
2. according to claim 1 for ordinary Portland cement press down alkaline agent, it is characterized in that, count by weight, the described alkaline agent that presses down at least comprises following component: ether of cellulose 0.05-0.1 part, potassium aluminium sulfate 0.01 ~ 0.05 part, rosin 0.01 ~ 0.1 part, n-octytriethoxysilane 0.01 ~ 0.05 part.
3. according to claim 1 for ordinary Portland cement press down alkaline agent, it is characterized in that, described press down alkaline agent also comprise: active silica, defoamer, naphthalene sulfonic acidformaldehyde condensation product sodium salt and ethylenediamine tetraacetic acid (EDTA).
4. according to claim 3 for ordinary Portland cement press down alkaline agent, it is characterized in that, count by weight, the described alkaline agent that presses down at least comprises following component: active silica 1-5 part, defoamer 0.01 ~ 0.1 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.1 ~ 1 part and ethylenediamine tetraacetic acid (EDTA) 0.05 ~ 0.1 part.
5. according to claim 1 for ordinary Portland cement press down alkaline agent, it is characterized in that, agent by weight comprises following component: ether of cellulose 0.07 part, potassium aluminium sulfate 0.04 part, rosin 0.06 part, n-octytriethoxysilane 0.03 part, active silica 4 parts, defoamer 0.03 part, naphthalene sulfonic acidformaldehyde condensation product sodium salt 0.7 part and ethylenediamine tetraacetic acid (EDTA) 0.08 part.
6. according to claim 1-5 for ordinary Portland cement press down alkaline agent, it is characterized in that, described defoamer is one or more in polypropylene glycerol aether, polyoxyethylene polyoxypropylene glyceryl ether, polydimethylsiloxane.
7. according to claim 1-5 for ordinary Portland cement press down alkaline agent, it is characterized in that, described ether of cellulose is one or more in hydroxyethylmethyl-cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, Natvosol, Vltra tears.
8. according to claim 1ly press down alkaline agent for ordinary Portland cement, it is characterized in that, use described press down alkaline agent time, the described mass ratio pressing down alkaline agent and ordinary Portland cement is 0.05-0.1:100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025021.XA CN105503030B (en) | 2015-12-30 | 2015-12-30 | A kind of suppression alkaline agent for Portland cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025021.XA CN105503030B (en) | 2015-12-30 | 2015-12-30 | A kind of suppression alkaline agent for Portland cement |
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| Publication Number | Publication Date |
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| CN105503030A true CN105503030A (en) | 2016-04-20 |
| CN105503030B CN105503030B (en) | 2018-01-30 |
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| CN201511025021.XA Active CN105503030B (en) | 2015-12-30 | 2015-12-30 | A kind of suppression alkaline agent for Portland cement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867808A (en) * | 2016-09-26 | 2018-04-03 | 郭太宗 | Cement-based material presses down alkali reinforcing agent |
| CN109516709A (en) * | 2017-09-19 | 2019-03-26 | 郭太宗 | Pervious concrete presses down alkali additive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913794A (en) * | 2010-08-13 | 2010-12-15 | 江苏尼高科技有限公司 | Cement mortar saltpetering inhibition additive |
| CN104628298A (en) * | 2013-11-06 | 2015-05-20 | 郭太宗 | Cement alkali resistance additive |
| CN105176271A (en) * | 2015-10-23 | 2015-12-23 | 山西亮龙涂料有限公司 | Architectural transparent colored alkali-resistant primer |
-
2015
- 2015-12-30 CN CN201511025021.XA patent/CN105503030B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913794A (en) * | 2010-08-13 | 2010-12-15 | 江苏尼高科技有限公司 | Cement mortar saltpetering inhibition additive |
| CN104628298A (en) * | 2013-11-06 | 2015-05-20 | 郭太宗 | Cement alkali resistance additive |
| CN105176271A (en) * | 2015-10-23 | 2015-12-23 | 山西亮龙涂料有限公司 | Architectural transparent colored alkali-resistant primer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867808A (en) * | 2016-09-26 | 2018-04-03 | 郭太宗 | Cement-based material presses down alkali reinforcing agent |
| CN109516709A (en) * | 2017-09-19 | 2019-03-26 | 郭太宗 | Pervious concrete presses down alkali additive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105503030B (en) | 2018-01-30 |
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