CN101891439A - Lightweight gypsum plaster mortar - Google Patents
Lightweight gypsum plaster mortar Download PDFInfo
- Publication number
- CN101891439A CN101891439A CN 201010219393 CN201010219393A CN101891439A CN 101891439 A CN101891439 A CN 101891439A CN 201010219393 CN201010219393 CN 201010219393 CN 201010219393 A CN201010219393 A CN 201010219393A CN 101891439 A CN101891439 A CN 101891439A
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- CN
- China
- Prior art keywords
- gypsum
- mortar
- plaster mortar
- flue gas
- gypsum plaster
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- 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
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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
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- 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
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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)
- Building Environments (AREA)
Abstract
The invention belongs to building mortar, and particularly relates to lightweight gypsum plaster mortar which is the secondary development of gypsum plastered product technology. The lightweight gypsum plaster mortar is used for leveling inner sides of outer walls, inner partition walls and ceilings of buildings, and the heat-insulated effect is good. Because the flue gas desulphurized building gypsum of power plants is used, the problem of disposing and using the desulphurized gypsum is solved, and the circulating economy is developed. The method for preparing the plaster mortar comprises the following steps of: accurately weighing up the following materials in part by weight: 70 to 80 parts of flue gas desulphurized gypsum of power plants, 15 to 25 parts of vitreous hollow microsphere, 0.2 to 0.4 part of cellulose ether, 0.3 to 0.6 part of air entraining agent and 0.2 to 0.5 part of retarding agent; and putting the materials into a container, adding 60 to 120 parts of water into the container, and uniformly stirring the mixture at the normal temperature to obtain the lightweight gypsum plaster mortar. The lightweight gypsum plaster mortar has the advantages of moderate strength, unnecessary additional making of protective covering, direct leveling after plastering, high performance cost, high workability, short construction period, functions of preventing fire, absorbing sound, and adjusting air humidity and no emission of CO2 in the production process.
Description
Technical field
The invention belongs to mortar for building, specifically a kind of light gypsum plastering mortar.
Background technology
Brushing gypsum is a kind of novel plastering material, it be with plaster of Paris as the construction material that base-material cooperates light skeletal or sand and admixture to mix, be divided into surface layer brushing gypsum, bottom layer brushing gypsum and insulation gypsum.Wherein, the insulation gypsum generally is used for the inboard screed-coat of external wall, and thermal and insulating performance is good, but because its intensity is lower, carry out levelling again so must make armor layer after wiping one's face in addition, bottom layer brushing gypsum intensity is higher, can be directly leveled after wiping one's face, but heat-insulating property is far away from the insulation gypsum.
In China, owing to desulphurization building gypsum quality instability, the product complete set technology is immature and reason such as correlation technique standard shortage, causes brushing gypsum can not obtain general use always, the related products kind is also less.Therefore, become the key of technical development for brushing gypsum material property index request and proportioning research.
In addition, use the characteristics of air-conditioning to be in the residential housing of Xia Redong cryogenic region: 1, generally have only bedroom or living room just to use air-conditioning, and kitchen and toilet not to use air-conditioning; 2, the use of air-conditioning changes the room service condition with personnel, and people only use the air-conditioning in room, own place, and air-conditioning is also stopped using when have no talent in the room.Therefore, the insulation of the partition wall between air-conditioning and the non-air-conditioned room also is even more important.Traditional way is not but taken measures in internal partition wall and ceiling insulation, how is not increasing building cost and is not reducing that exploitation has the developing direction that the coating material that is incubated effect also becomes the brushing gypsum product on the basis of usable floor area.
Because the deficiency of desulfurated plaster application technology as the second resource, the disposal of China's desulfurated plaster and recycling face severe situation.A large amount of desulfurated plasters of stacking have influenced ecotope and safe operation of power plant, to desulfurated plaster circulate, recycling is a problem that presses for solution.Building field has the potentiality of the desulfurated plaster of dissolving in a large number, and therefore research efficiently utilizes desulphurization building gypsum, and it is very necessary inventing a kind of light gypsum plastering mortar.
Summary of the invention
After providing and a kind ofly adopt means of flue gas desulfurization of power plant plaster of Paris, intensity height, good heat insulating, wipe one's face, the object of the invention need not make the light gypsum mortar of armor layer in addition.
The present invention seeks to realize like this:
A kind of light gypsum plastering mortar, step is as follows:
The means of flue gas desulfurization of power plant gypsum prepares the method for building mortar,
(1) material that accurately takes by weighing following weight ratio is formed:
Means of flue gas desulfurization of power plant gypsum 70-80 part, vitreous hollow beads 15-25 part, ether of cellulose 0.2-0.4 part, air entrapment agent 0.3-0.6 part, retardant 0.2-0.5 part;
(2) above-mentioned substance is added in the container, add water 60-120 part, stirring at normal temperature is evenly made.
Semi-hydrated gypsum content is greater than 85% in the plaster of Paris of means of flue gas desulfurization of power plant, and remaining two aqueous phase content are below 4%.
Main points of the present invention are:
1) semi-hydrated gypsum content is greater than 85% in the means of flue gas desulfurization of power plant gypsum, and remaining two aqueous phase content are below 4%.
2) retardant that uses of the present invention is the five sodium-salt Na of diethylene triaminepentaacetic acid(DTPA)
5DTPA, its retarding effect is remarkable, and is little to the mortar strength influence.
3) glass bead of the present invention's use is a heat insulating dry powder commonly used in the prior art; have the excellent insulating performance, can satisfy simultaneously the requirement of over-all propertieies such as anti-aging, weathering resistance to material, fire prevention, water-fast, splitting resistance and resistance to compression, tension, cohesive strength, workability.Unit weight is 105-120kg/m
3
4) ether of cellulose that uses of the present invention is hydroxyethylmethyl-cellulose ether (MHEC) or hydroxypropyl methyl cellulose ether (MHPC), range of viscosities: 10,000-30,000.Adding ether of cellulose, is the water-retentivity in order to guarantee that mortar is good, because the water-absorbent of brick and metope is very strong, be easy to the water adsorption in the mortar is come out, make the dehydration of mortar part, cohesive strength reduces, after the present invention added ether of cellulose, cohesive strength obviously increased.
5) air entrapment agent that uses of the present invention is made as main raw material with triterpenoid saponin, comprising: rosin and thermopolymer thereof, alkylphenol ethylene oxide condensate, alkyl benzene sulphonate (ABS), sulfonated lignin and animal grease etc.; Be nonionic surface active agent, solvability is good, acidproof, alkaline-resisting, anti-hard water.
Product of the present invention is a kind of novel gypsum capital construction material, is used for the coating material of skin inboard, partition wall and ceiling, is the regeneration product of traditional sand-cement slurry or mixed mortar.Product characteristics of the present invention is: mortar strength is moderate, need not to do in addition mask after wiping one's face, and can be directly leveled, and has simplified construction process; Setting and harden in 4 hours behind the wall has shortened construction period on the mortar.
Semi-hydrated gypsum content is greater than 85% in the desulphurization building gypsum that the present invention uses, and remaining two aqueous phase content are below 4%; Light skeletal is selected surperficial vitreous rate height and the less glass bead of unit weight for use; Can improve the cohesive strength and the workability of mortar by the ether of cellulose that mixes modest viscosity, alr mode stirs mortar to recommend to adopt at a slow speed simultaneously, reduces the fragmentation of light skeletal, improves heat-insulating property.
The present invention has simplified the construction technology of wiping one's face of inner side of outer wall, partition wall and ceiling, replaces traditional sand-cement slurry or mixed mortar; By additional insulation, do not increase cost in the time of the heat insulation effect of increase buildings to inner side of outer wall, partition wall and ceiling; Solve a desuifurized comprehensive utilization of resources difficult problem, reach energy-saving and emission-reduction, develop a circular economy, the target of low-carbon economy; Increase the comfortableness and the greenness of buildings.
The present invention compares with having like product both at home and abroad now, and its creativeness is following:
Mortar strength is than common thermal insulation mortar intensity height, and heat insulation effect is similar, so need not after wiping one's face to make mask in addition, can be directly leveled, and simplifies construction technology.This mortar is used for external wall inboard, internal partition wall and ceiling levelling, is fit to very much the residential housing characteristics of Xia Redong cryogenic region.
The present invention is with the difference in functionality that has like product both at home and abroad now:
The common thermal insulation mortar intensity of strength ratio height, thermal conductivity is 1/8th of a conventional cement mortar, buildings is replenished energy-conservation; Can be directly leveled after wiping one's face with gypsum lightweight mortar, simplify construction process; The mortar cost can be than common plastering mortar height, cost performance height; Have functions such as fire prevention, sound absorption, adjusting atmospheric moisture; Have good workability, on the mortar behind the wall in 4 hours setting and harden, shortened construction period.
Advantage of the present invention is:
1, intensity higher, need not make mask in addition.
2, heat preservation and energy conservation effects is good.
3, cost performance height.
4, have good workability.
5, short construction period.
6, have fire prevention, sound absorption, adjusting atmospheric moisture function.
7, reduce desuifurized stacking, landfill.
8, there is not CO in the production process
2Discharging.
Embodiment
The present invention will be further described below by embodiment.
Embodiment 1
Get the material of following weight ratio:
75.8 kilograms of desulfurated plasters, 22.7 kilograms of vitreous hollow beads, 0.2 kilogram in 20,000 viscosity cellulose ethers, 0.5 kilogram of air entrapment agent, 0.1 kilogram of retardant, 98 kilograms in water slowly stir, and make light gypsum mortar of the present invention.
Embodiment 2
Get the material of following weight ratio:
78.6 kilograms of desulfurated plasters, 20.6 kilograms of vitreous hollow beads, 0.2 kilogram of 1.5 ten thousand ether of cellulose, 0.3 kilogram of air entrapment agent, 0.1 kilogram of retardant, 86 kilograms in water slowly stir, and make light gypsum mortar of the present invention.
Embodiment 3
Get the material of following weight ratio:
79.0 kilograms of desulfurated plasters, 20.8 kilograms of glass beads, 0.4 kilogram in 1.5 ten thousand viscosity cellulose ethers, 0.3 kilogram of air entrapment agent, 0.08 kilogram of retardant, 92 kilograms in water stir, and make light gypsum mortar of the present invention.
Embodiment 4
Present embodiment is the Comparative Examples thermal insulation mortar, with its intensity and thermal conductivity and the present invention's comparison, light gypsum mortar strength height, good heat insulating is described.
Get the material of following weight ratio:
68.2 kilograms of desulphurization building gypsums, 30.3 kilograms of perlites, 0.2 kilogram of 100,000 ether of cellulose, 1.2 kilograms of air entrapment agents, 0.08 kilogram of retardant, 148 kilograms in water stir, and make the contrast mortar material.
The performance of light gypsum mortar that the embodiment of the invention 1, example 2, example 3 make and embodiment 4 Comparative Examples is as shown in the table:
As can be seen from the above table, the intensity of light gypsum mortar is greater than thermal insulation mortar, and thermal conductivity and thermal insulation mortar are similar, high insulating effect.
The foregoing description only is a preference of the present invention, is not used for limiting the present invention, and is all within principle of the present invention, and that is done anyly is equal to alternative, modifications and variations, all within protection scope of the present invention.
Claims (2)
1. light gypsum plastering mortar, preparation process is as follows:
(1) material that accurately takes by weighing following weight ratio is formed:
Means of flue gas desulfurization of power plant gypsum 70-80 part, vitreous hollow beads 15-25 part, ether of cellulose 0.2-0.4 part, air entrapment agent 0.3-0.6 part; Retardant 0.2-0.5 part;
(2) above-mentioned substance is added in the container, add water 60-120 part, stirring at normal temperature is evenly made.
2. light gypsum plastering mortar according to claim 1 is characterized in that: semi-hydrated gypsum content should be greater than 85% in the means of flue gas desulfurization of power plant gypsum, and remaining two aqueous phase content should be below 4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010219393 CN101891439A (en) | 2010-07-02 | 2010-07-02 | Lightweight gypsum plaster mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010219393 CN101891439A (en) | 2010-07-02 | 2010-07-02 | Lightweight gypsum plaster mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101891439A true CN101891439A (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010219393 Pending CN101891439A (en) | 2010-07-02 | 2010-07-02 | Lightweight gypsum plaster mortar |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093024A (en) * | 2010-12-28 | 2011-06-15 | 上海城建置业发展有限公司 | Desulfurized gypsum thermal-insulation material |
| RU2494991C1 (en) * | 2012-03-05 | 2013-10-10 | Открытое акционерное общество "Технологическое оснащение" | Model material |
| CN103351148A (en) * | 2013-07-18 | 2013-10-16 | 中国矿业大学 | Desulfurization gypsum block |
| CN105254268A (en) * | 2015-11-12 | 2016-01-20 | 上海曹杨建筑粘合剂厂 | Putty leveling integrated gypsum mortar |
| CN105985070A (en) * | 2015-02-09 | 2016-10-05 | 任丘市永基建筑安装工程有限公司 | Assembly-type house vertical plate binder |
| CN106007624A (en) * | 2016-05-24 | 2016-10-12 | 深圳市华泰汇邦建材科技有限公司 | One-time-forming putty-free desulfurized gypsum mortar and spraying method thereof |
| CN106007623A (en) * | 2016-05-24 | 2016-10-12 | 深圳市华泰汇邦建材科技有限公司 | One-step formed putty-free chemical ardealite mortar and spraying method thereof |
| CN108191372A (en) * | 2018-03-16 | 2018-06-22 | 南京益夫新材料科技有限公司 | A kind of Recompounded multielement desulfurated plaster light mortar and preparation method thereof |
| CN109626927A (en) * | 2018-12-29 | 2019-04-16 | 泰山石膏有限公司 | A kind of lightweight desulfurization plastering gupsum |
| CN110954681A (en) * | 2018-09-27 | 2020-04-03 | 江苏吉邦材料科技有限公司 | Method for detecting on-site setting time during manual plastering construction of gypsum mortar |
| CN112624719A (en) * | 2020-12-23 | 2021-04-09 | 宁波汉华建材科技有限公司 | Preparation method of functional self-leveling mortar with heat preservation performance |
| CN112646409A (en) * | 2020-12-30 | 2021-04-13 | 苏州大乘环保新材有限公司 | Novel high-strength gypsum heat-insulating putty and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691292A (en) * | 2009-09-30 | 2010-04-07 | 谢日清 | Lightweight wall plaster |
-
2010
- 2010-07-02 CN CN 201010219393 patent/CN101891439A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691292A (en) * | 2009-09-30 | 2010-04-07 | 谢日清 | Lightweight wall plaster |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093024A (en) * | 2010-12-28 | 2011-06-15 | 上海城建置业发展有限公司 | Desulfurized gypsum thermal-insulation material |
| RU2494991C1 (en) * | 2012-03-05 | 2013-10-10 | Открытое акционерное общество "Технологическое оснащение" | Model material |
| CN103351148A (en) * | 2013-07-18 | 2013-10-16 | 中国矿业大学 | Desulfurization gypsum block |
| CN105985070A (en) * | 2015-02-09 | 2016-10-05 | 任丘市永基建筑安装工程有限公司 | Assembly-type house vertical plate binder |
| CN105254268A (en) * | 2015-11-12 | 2016-01-20 | 上海曹杨建筑粘合剂厂 | Putty leveling integrated gypsum mortar |
| CN106007623A (en) * | 2016-05-24 | 2016-10-12 | 深圳市华泰汇邦建材科技有限公司 | One-step formed putty-free chemical ardealite mortar and spraying method thereof |
| CN106007624A (en) * | 2016-05-24 | 2016-10-12 | 深圳市华泰汇邦建材科技有限公司 | One-time-forming putty-free desulfurized gypsum mortar and spraying method thereof |
| CN106007624B (en) * | 2016-05-24 | 2018-06-19 | 深圳摩盾环保新材料有限公司 | Putty Desulfurization gypsum sand pulp and its spraying method are exempted from one-pass molding |
| CN106007623B (en) * | 2016-05-24 | 2018-06-22 | 深圳摩盾环保新材料有限公司 | Putty chemical phosphorus gypsum mortar and its spraying method are exempted from one-pass molding |
| CN108191372A (en) * | 2018-03-16 | 2018-06-22 | 南京益夫新材料科技有限公司 | A kind of Recompounded multielement desulfurated plaster light mortar and preparation method thereof |
| CN110954681A (en) * | 2018-09-27 | 2020-04-03 | 江苏吉邦材料科技有限公司 | Method for detecting on-site setting time during manual plastering construction of gypsum mortar |
| CN109626927A (en) * | 2018-12-29 | 2019-04-16 | 泰山石膏有限公司 | A kind of lightweight desulfurization plastering gupsum |
| CN109626927B (en) * | 2018-12-29 | 2022-04-01 | 泰山石膏有限公司 | Light desulfurization plaster |
| CN112624719A (en) * | 2020-12-23 | 2021-04-09 | 宁波汉华建材科技有限公司 | Preparation method of functional self-leveling mortar with heat preservation performance |
| CN112646409A (en) * | 2020-12-30 | 2021-04-13 | 苏州大乘环保新材有限公司 | Novel high-strength gypsum heat-insulating putty and preparation method thereof |
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Application publication date: 20101124 |