CN101993232A - Crack-resisting masonry mortar for air-entrapping brick wall body, prepared from desulfurization gypsum powder - Google Patents
Crack-resisting masonry mortar for air-entrapping brick wall body, prepared from desulfurization gypsum powder Download PDFInfo
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- CN101993232A CN101993232A CN2009101713293A CN200910171329A CN101993232A CN 101993232 A CN101993232 A CN 101993232A CN 2009101713293 A CN2009101713293 A CN 2009101713293A CN 200910171329 A CN200910171329 A CN 200910171329A CN 101993232 A CN101993232 A CN 101993232A
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- masonry mortar
- wall body
- brick wall
- cracking resistance
- aerating brick
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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
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- 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
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- Inorganic Chemistry (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Revetment (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a method for preparing a crack-resisting masonry mortar for an air-entrapping brick wall body from desulfurization gypsum powder in the construction industry. The cracking-resisting masonry mortar is prepared by mainly using a desulfuration product (desulfuration gypsum) of a power plant as a main raw material. The preparation method comprises the step of doping 1-5 thousandths of cellulose fiber, 0.1-3 thousandths of retarder, 0.2-50 thousandths of water retaining agent, 0.5-5 percent of reinforcing agent, 10-30 percent of mineral doping material and 10-40 percent of fine river sand to obtain the crack-resisting masonry mortar with excellent property. The invention develops a new method for producing the excellent gypsum based masonry mortar with high crack resistance, low contraction distortion, high binding power, high strength and low cost by using the desulfuration gypsum, develops a new method for the comprehensive utilization of the desulfuration gypsum as a sold waste, and solves the problem of cracking of wall bodies of an air-entrapping brick, a flyash brick and the like in China at present.
Description
Affiliated technical field:
The present invention relates to a kind ofly prepare aerating brick wall body and function cracking resistance masonry mortar, relate in particular to and a kind ofly utilize the desulfurated plaster powder to prepare aerating brick wall body and function anticracking grout and the method for its preparation with the desulfurated plaster powder.
Background technology:
Fuel-burning power plant general and the most effective most widely used sulfurous gas control techniques is lime/lime stone-gypsum method.The forming process of lime/lime stone-gypsum method desulphurization mechanism and desulfurated plaster is as follows: import in the resorber by the flue gas after the dust removal process, microlith ash or limestone powder slip wash flue gas by the mode of spray in resorber, generate calcium sulfite with the sulfur in smoke reaction, bubbling air becomes terra alba with calcium sulfite oxidation then, forms desulfurated plaster.The utilization ratio of China's desulfurated plaster is also very low at present, though the minority power plant construction gypsum processing project, but its utilization seldom, do not become main flow, major part is still to stockpile and store, become the second largest solid waste behind thermal power plant's flyash, a large amount of constructions along with the power plants desulfurizing item, the desulfurated plaster quantity discharged increases severely, store up if adopt to abandon, need to build special storage field, not only invest huge, take the land resources of a large amount of preciousnesses, and living environment is on every side produced adverse influence.
Present masonry mortar mainly be with cement as main gelling material because the peculiar shrinkability of Portland cement itself is big, cause the shrinkage strain of the masonry mortar prepared bigger.If in masonry mortar, mix a certain amount of swelling agent, can increase the cost of masonry mortar again, and volume is wayward, unstable properties.The cracking problem of bodies of wall such as aerating brick, flyash brick has a strong impact on the construction quality of body of wall, becomes the bottleneck that materials for walls such as restriction aerating brick, flyash brick are applied under construction.Build by laying bricks or stones the layer shrinkage strain, and cohesive force insufficient be to cause wall crazing problem one of the main reasons.The cracking resistance masonry mortar utilizes the micro-expansibility of gypsum, makes it under the situation of not mixing any swelling agent, just has micro-expansibility.Prepare aerating brick wall body and function cracking resistance masonry mortar with desulfurated plaster simultaneously and also have high cracking resistance energy, low shrinkage and deformation, high cohesive force, high strength, characteristics that cost is low.
Summary of the invention:
The purpose of this invention is to provide and a kind ofly prepare aerating brick wall body and function cracking resistance masonry mortar with desulfurated plaster, and can fully utilize the cost of desulfurated plaster, reduction cracking resistance masonry mortar, make the cracking resistance masonry mortar of preparing have high cracking resistance energy, low shrinkage and deformation, high cohesive force and high-intensity characteristics.
Technical scheme of the present invention is: a kind of cracking resistance masonry mortar that is applied to building material industry, by to be main raw material with the desulfurated plaster powder, use some admixtures that it is carried out modification, and then mix with a certain amount of thin river sand.
Composition material of the present invention has desulfurated plaster powder, lignin fibre, retardant, water-holding agent, toughener, mineral admixture and thin river sand.
Desulfurated plaster powder of the present invention is the terra alba of the excellent performance prepared through calcination processing with the solid waste desulfurated plaster of fuel-burning power plant desulfurization, and volume accounts for 40～60 ‰ of aerating brick wall body and function cracking resistance masonry mortar gross weight
The model of lignin fibre of the present invention is length 40 μ m, length 500 μ m, and volume accounts for 1～5 ‰ of aerating brick wall body and function cracking resistance masonry mortar gross weight.
Water-holding agent of the present invention has wilkinite, montmorillonite, methyl fiber ether, hydroxypropyl methyl cellulose ether, hydroxyethylmethyl-cellulose ether, sodium cellulose glycolate, and volume accounts for 0.2～50 ‰ of aerating brick wall body and function cracking resistance masonry mortar gross weight.
Retardant of the present invention has boric acid, Trisodium Citrate, citric acid, sodium polyphosphate, tartrate, gelatine, and volume accounts for 0.1～3 ‰ of aerating brick wall body and function cracking resistance masonry mortar gross weight.
Toughener of the present invention has sodium silicofluoride, silicate cement, grey calcium powder, and volume accounts for 0.5～5% of aerating brick wall body and function cracking resistance masonry mortar gross weight.
The kind of mineral admixture of the present invention has flyash, slag, and volume accounts for 10～30% of aerating brick wall body and function cracking resistance masonry mortar gross weight.
The fineness of thin river of the present invention sand is 40 orders, 80 orders, and volume accounts for 10～40% of aerating brick wall body and function cracking resistance masonry mortar gross weight.
Beneficial effect:
1, raw material is cheap and easy to get, and the mode of production is beneficial to the Sustainable development of building materials industry.The used desulfurated plaster of the present invention has become second largest solid waste behind thermal power plant's flyash in China, and widely applies as yet at present, generally be as waste sludge discharge in the stockyard, low price, as long as in the reasonable transportation radius of terra alba factory just;
2, batching is simple.As long as the desulfurated plaster powder is carried out modification, and then mix, promptly prepare the aerating brick wall body and function cracking resistance masonry mortar of excellent performance with a certain amount of thin river sand by some admixtures;
3, the excellent performance of aerating brick wall body and function cracking resistance masonry mortar.The aerating brick wall body and function cracking resistance masonry mortar of producing with the present invention has high cracking resistance energy, low shrinkage and deformation, high cohesive force, high strength, characteristics cheaply.
4, opened up the new Application Areas of desulfurated plaster, for the cracking problem that solves aerating gas brick wall body provides scheme.
Description of drawings
Technological process of production figure of the present invention.
Embodiment:
Provide following examples below in conjunction with content of the present invention:
Proportionally take by weighing various starting material, elder generation mixes the desulfurated plaster powder in the proportioning and stirs with needed admixture, and then mixes with thin river sand facies, and the formation product that stirs packs.According to aerating brick wall body and function cracking resistance masonry mortar application need, by adjusting the invention prescription, can obtain needed performance, in specific implementation process, each weight percentages of components is:
Embodiment one:
By weight, take 10 parts in the slag of 50 parts in desulfurated plaster powder, 0.1 part in tartrate, 0.1 part of methyl cellulose ether, 1 part of grey calcium powder, 500 0.2 part of μ m lignin fibre, 325 order fineness, put into stirrer, mixed 20 minutes, 60 rev/mins of stirrer rotating speeds, and then with 18.6 parts of fineness be that the thin river of 40 purposes sand, 20 parts of fineness are that the thin river of 80 purposes sand facies mix mixing time 10 minutes, 60 rev/mins of mixing speed obtain 100 parts of finished product aerating brick wall body and function cracking resistance masonry mortars.Embodiment two:
By weight, take 10 parts in the slag of 48 parts in desulfurated plaster powder, 0.1 part of citric acid, 2 parts of wilkinites, 3 parts of silicate cements, 500 0.2 part of μ m lignin fibre, 325 order fineness, put into stirrer, mixed 20 minutes, 60 rev/mins of churning time, and then with 36.7 parts of fineness be that the thin river of 40 purposes sand facies mix, mixing time 10 minutes, 60 rev/mins of mixing speed obtain 100 parts of finished product aerating brick wall body and function cracking resistance masonry mortars.
Embodiment three:
By weight, get 45.5 parts in desulfurated plaster powder, 18 parts in the flyash of 0.3 part of sodium polyphosphate, 0.1 part of hydroxypropyl methyl cellulose ether, 2 parts of grey calcium powders, 40 0.2 part of μ m lignin fibre, 325 order fineness, put into stirrer, mixed 60 rev/mins of churning time 20 minutes, and then with 33.9 parts of fineness be that the thin river of 80 purposes sand facies mix, mixing time 10 minutes, 60 rev/mins of mixing speed obtain 100 parts of finished product aerating brick wall body and function cracking resistance masonry mortars.
Embodiment four:
By weight, get 53 parts in desulfurated plaster powder, 8 parts in the slag of 0.1 part of citric acid, 0.2 part in hydroxyl methylcellulose sodium, 40 0.2 part of μ m lignin fibre, 3 parts of silicate cements, 325 order fineness, put into stirrer, mixed 20 minutes, 60 rev/mins of churning time, and then with 35.5 parts of fineness be that the thin river of 80 purposes sand facies mix, mixing time 10 minutes, 60 rev/mins of mixing speed obtain 100 parts of finished product aerating brick wall body and function cracking resistance masonry mortars.
Embodiment five:
By weight, get 43.7 parts of the terra albas that desulfurated plaster prepares, 0.1 part of citric acid, 0.5 part of montmorillonite, 0.1 part of 40 μ m lignin fibre, 500 0.1 part of μ m lignin fibre, 3 parts of silicate cements, 16 parts in the flyash of 325 order fineness, put into stirrer, mixed 60 rev/mins of churning time 20 minutes, and then with 36.5 parts of fineness be that the thin river of 80 purposes sand facies mix, mixing time 10 minutes, 60 rev/mins of mixing speed obtain 100 parts of finished product aerating brick wall body and function cracking resistance masonry mortars.
Said components gets aerating brick wall body and function cracking resistance masonry mortar by aforementioned prepared, with reference to " steam-pressing aero-concrete with masonry mortar and plastering mortar " (JC890-2001), " brushing gypsum " (JC/T517-2004), " building mortar basic performance tests method " (JGJ70-90) carry out the test of performance with the related detecting method that chief editor's such as Chen Yan " gypsum building material " is mentioned to.Its test parameter performance index see the following form.
Claims (8)
1. prepare aerating brick wall body and function cracking resistance masonry mortar with the desulfurated plaster powder, be that employing solid waste desulfurated plaster is a main raw material(s), it is characterized in that using some admixtures that desulfurated plaster is carried out modification earlier, and then mix with a certain amount of thin river sand, adding water can use to the working-yard.
2. method according to claim 1 is characterized in that admixture is made up of lignin fibre, water-holding agent, retardant, toughener, mineral admixture and thin river sand.
3. method according to claim 2, the model that it is characterized in that lignin fibre are length 40 μ m, length 500 μ m, and volume accounts for 1～5 ‰ of aerating brick wall body and function cracking resistance masonry mortar gross weight.
4. method according to claim 2, the kind that it is characterized in that water-holding agent has wilkinite, montmorillonite, methyl fiber ether, hydroxypropyl methyl cellulose ether, hydroxyethylmethyl-cellulose ether, sodium cellulose glycolate, and volume accounts for 0.2～50 ‰ of aerating brick wall body and function cracking resistance masonry mortar gross weight.
5. method according to claim 2 is characterized in that the kind of retardant has boric acid, Trisodium Citrate, citric acid, sodium polyphosphate, tartrate, gelatine, and volume accounts for 0.1～3 ‰ of aerating brick wall body and function cracking resistance masonry mortar gross weight.
6. method according to claim 2 is characterized in that the kind of toughener has sodium silicofluoride, silicate cement, grey calcium powder, and volume accounts for 0.5～5% of aerating brick wall body and function cracking resistance masonry mortar gross weight.
7. method according to claim 2 is characterized in that the kind of mineral admixture has flyash, slag, and volume accounts for 10～30% of aerating brick wall body and function cracking resistance masonry mortar gross weight.
8. method according to claim 2, the fineness of the thin river of its feature sand is 40 orders, 80 orders, volume accounts for 10～40% of aerating brick wall body and function cracking resistance masonry mortar gross weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101713293A CN101993232A (en) | 2009-08-19 | 2009-08-19 | Crack-resisting masonry mortar for air-entrapping brick wall body, prepared from desulfurization gypsum powder |
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| CN2009101713293A CN101993232A (en) | 2009-08-19 | 2009-08-19 | Crack-resisting masonry mortar for air-entrapping brick wall body, prepared from desulfurization gypsum powder |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701695A (en) * | 2012-05-31 | 2012-10-03 | 成都市第四建筑工程公司 | Plastering material for building wall body |
| CN102875183A (en) * | 2012-08-25 | 2013-01-16 | 马鞍山豹龙新型建材有限公司 | Preparation process for autoclaved curing aerated brick |
| CN102887724A (en) * | 2012-09-03 | 2013-01-23 | 蚌埠爱民汽车服务有限公司五河新型环保建材厂 | Aerated brick produced by modified kaolin and processing method of aerated brick |
| CN103288413A (en) * | 2013-05-30 | 2013-09-11 | 上海茵帆新材料科技有限公司 | Dry powder gypsum mortar and preparation method thereof |
| CN103332920A (en) * | 2013-07-18 | 2013-10-02 | 中国矿业大学 | Desulfurization gypsum sand pulp |
| CN103351148A (en) * | 2013-07-18 | 2013-10-16 | 中国矿业大学 | Desulfurization gypsum block |
| CN104045297A (en) * | 2013-03-14 | 2014-09-17 | 浙江天达环保股份有限公司 | Fly ash type plastering gypsum |
| CN104860600A (en) * | 2015-04-30 | 2015-08-26 | 安徽鑫润新型材料有限公司 | Fire-proof crack-proof plastering mortar and preparation method thereof |
| CN105294035A (en) * | 2014-12-08 | 2016-02-03 | 李培彦 | Ecotype high-strength modified gypsum powder |
| CN108675739A (en) * | 2018-05-03 | 2018-10-19 | 贵州恒源科创新型材料研发有限公司 | A kind of special binding material of air-entrained concrete building block |
| CN111704429A (en) * | 2020-06-12 | 2020-09-25 | 山东亮普建材科技有限公司 | Mortar prepared from solid waste light aggregate of thermal power plant as raw material, mortar preparation method and prepared prefabricated part |
| CN111960707A (en) * | 2020-06-12 | 2020-11-20 | 江苏吉邦材料科技有限公司 | Application of sierozem powder and anti-crack gypsum mortar |
| CN115108798A (en) * | 2022-06-29 | 2022-09-27 | 武汉三源特种建材有限责任公司 | Large-flow-state self-compacting citric acid gypsum mortar and preparation method thereof |
| CN115140997A (en) * | 2022-07-22 | 2022-10-04 | 交通运输部公路科学研究所 | Coal-based solid waste type anti-cracking agent for cement stabilized pavement base material |
-
2009
- 2009-08-19 CN CN2009101713293A patent/CN101993232A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701695A (en) * | 2012-05-31 | 2012-10-03 | 成都市第四建筑工程公司 | Plastering material for building wall body |
| CN102701695B (en) * | 2012-05-31 | 2013-10-09 | 成都市第四建筑工程公司 | Plastering material for building wall body |
| CN102875183B (en) * | 2012-08-25 | 2014-09-10 | 马鞍山豹龙新型建材有限公司 | Preparation process for autoclaved curing aerated brick |
| CN102875183A (en) * | 2012-08-25 | 2013-01-16 | 马鞍山豹龙新型建材有限公司 | Preparation process for autoclaved curing aerated brick |
| CN102887724A (en) * | 2012-09-03 | 2013-01-23 | 蚌埠爱民汽车服务有限公司五河新型环保建材厂 | Aerated brick produced by modified kaolin and processing method of aerated brick |
| CN104045297A (en) * | 2013-03-14 | 2014-09-17 | 浙江天达环保股份有限公司 | Fly ash type plastering gypsum |
| CN103288413A (en) * | 2013-05-30 | 2013-09-11 | 上海茵帆新材料科技有限公司 | Dry powder gypsum mortar and preparation method thereof |
| CN103332920A (en) * | 2013-07-18 | 2013-10-02 | 中国矿业大学 | Desulfurization gypsum sand pulp |
| CN103351148A (en) * | 2013-07-18 | 2013-10-16 | 中国矿业大学 | Desulfurization gypsum block |
| CN103332920B (en) * | 2013-07-18 | 2016-01-20 | 中国矿业大学 | A kind of Desulfurization gypsum sand pulp |
| CN105294035A (en) * | 2014-12-08 | 2016-02-03 | 李培彦 | Ecotype high-strength modified gypsum powder |
| CN104860600A (en) * | 2015-04-30 | 2015-08-26 | 安徽鑫润新型材料有限公司 | Fire-proof crack-proof plastering mortar and preparation method thereof |
| CN108675739A (en) * | 2018-05-03 | 2018-10-19 | 贵州恒源科创新型材料研发有限公司 | A kind of special binding material of air-entrained concrete building block |
| CN111704429A (en) * | 2020-06-12 | 2020-09-25 | 山东亮普建材科技有限公司 | Mortar prepared from solid waste light aggregate of thermal power plant as raw material, mortar preparation method and prepared prefabricated part |
| CN111960707A (en) * | 2020-06-12 | 2020-11-20 | 江苏吉邦材料科技有限公司 | Application of sierozem powder and anti-crack gypsum mortar |
| CN115108798A (en) * | 2022-06-29 | 2022-09-27 | 武汉三源特种建材有限责任公司 | Large-flow-state self-compacting citric acid gypsum mortar and preparation method thereof |
| CN115140997A (en) * | 2022-07-22 | 2022-10-04 | 交通运输部公路科学研究所 | Coal-based solid waste type anti-cracking agent for cement stabilized pavement base material |
| CN115140997B (en) * | 2022-07-22 | 2023-01-17 | 交通运输部公路科学研究所 | Coal-based solid waste type anti-cracking agent for cement stabilized pavement base material |
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Application publication date: 20110330 |