CN103819163A - Lightweight gypsum block and its preparation method - Google Patents
Lightweight gypsum block and its preparation method Download PDFInfo
- Publication number
- CN103819163A CN103819163A CN201410063240.6A CN201410063240A CN103819163A CN 103819163 A CN103819163 A CN 103819163A CN 201410063240 A CN201410063240 A CN 201410063240A CN 103819163 A CN103819163 A CN 103819163A
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- building block
- steel slag
- light gypsum
- gypsum
- gypsum building
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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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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a lightweight gypsum block and its preparation method. The block comprises the following components, by weight, 70-80% of desulfurized gypsum, 10-15% of ultrafine steel slag powder, 10-15% of perlite, 1-1.5% of a steel slag excitant, 0.3-0.5% of PP fiber, 0.05% of a retarder, 0.01-0.05% of a foaming agent and the balance water. According to the invention, industrial waste residues such as desulfurized gypsum, steel slag and the like are used as main raw materials to prepare the gypsum block, thus opening up a new way for comprehensive utilization of industrial solid wastes. Production cost of the gypsum block is reduced, and dual effects of environmental protection and waste utilization are achieved. Due to the addition of the ultrafine steel slag powder and the excitant, strength and water resistance of the product are enhanced. The prepared gypsum block has effects of light weight, sound insulation, thermal insulation, moisture retention and the like, and has good anti-seismic property. According to the invention, a new way for resource utilization of the solid wastes desulfurized gypsum and steel slag is opened up, natural environment is protected, and resources and energy are saved.
Description
Technical field
The present invention relates to a kind of light gypsum building block and preparation method thereof, particularly a kind ofly utilize novel light gypsum block that the industrial solid castoff such as desulfurated plaster, superfine steel slag micropowder prepared as raw material and preparation method thereof.
Background technology
Desulfurated plaster is the byproduct that coal-burning power plant adopts the stack desulfurization of wet type lime/lime stone-gypsum, and slag is a kind of industrial solid castoff discharging in steelmaking process.Along with the fast development of Chinese national economy, the demand of electric power and iron and steel increases rapidly, and this has also caused the industrial residue such as desulfurated plaster, slag to accumulate rapidly.But, due to the utilization ratio deficiency of China to trade waste, cause the accumulation of a large amount of desulfurated plasters and slag, not only take a large amount of land resources, and brought pollution to local environment.In the process of industrial residue recycling, be applied to building trade is the focus that people study always.
At present, the non-load bearing inner partition wall bodies of a lot of buildings of China still adopt traditional solid fragment of brick, and the load weight that this has not only increased buildings, has improved building cost, and its sound insulation, effect of heat insulation are poor.And the feature such as gypsum block is good with its lightweight, heat insulating, soundproof effect, easy construction and get more and more people's extensive concerning and like.The present invention aims to provide a kind of method of utilizing the industrial solid castoff such as desulfurated plaster, superfine steel slag micropowder to prepare novel light gypsum block as main raw material.
Summary of the invention
One of object of the present invention is to overcome the problems such as traditional partition material quality is large, sound-insulating and heat-insulating is poor, cost is higher, provides a kind of take industrial solid castoff---and-desulfurated plaster and superfine steel slag micropowder are the novel light gypsum block of main raw material.
Two of object of the present invention is to provide the preparation method of this light gypsum building block.
For achieving the above object, the present invention adopts following technical scheme:
A kind of light gypsum building block, is characterized in that the composition of this building block and weight percentage are:
Desulfurated plaster 70～80%
Superfine steel slag micropowder 10～15%
Perlite 10～15%
Slag exciting agent 1～1.5%
PP fiber 0.3～0.5%
Retardant 0.05%
Whipping agent 0.01～0.05%;
Water surplus.
Described superfine steel slag micropowder, is converter or electric furnace slag, grinding after iron removal by magnetic separation is processed, its specific surface
>=600m
2/ kg, the superfine steel slag micropowder that particle diameter is less than 30 μ m accounts for the more than 90% of total mass, metal Ferrum content≤0.5%;
The main component of described slag exciting agent has Tai-Ace S 150, cement, sepiolite and kaolin, mixes by the mass ratio of 3:3:1:2;
The main component of described retardant has oxysuccinic acid, Padil, disodium ethylene diamine tetraacetate and calcium increasing agent, mixes by the mass ratio of 1:2.5:2.5:4.
Above-mentioned desulfurated plaster is beta-type semi-hydrated gypsum, and loose bulk density is 1024Kg/m
3, the presetting period is 5min, and final setting time is 8min, and over dry ultimate compression strength is 20.66MPa, and over dry folding strength is 4.86MPa.
Above-mentioned perlite, its fineness is 20-40 order.
Above-mentioned PP fiber, its length is 6mm.
Above-mentioned whipping agent is protein organism.
Above-mentioned protein organism is: the keratoprotein of animal (as: ox or sheep).
Prepare a method for above-mentioned light gypsum building block, it is characterized in that the concrete steps of the method are:
A. by above-mentioned each composition, except whipping agent and water, be fully uniformly mixed into compound;
B. by water and whipping agent mix and blend 5 minutes, then add step a gained compound, after stirring, through casting, maintenance, makes light gypsum building block.
For the present invention, the industrial residue such as desulfurated plaster, slag is prepared gypsum block as main raw material, new approach has been opened up in this comprehensive utilization that is industrial solid castoff, not only reduce the production cost of gypsum block, and reached environmental protection, the useless double effects of profit.Due to adding of superfine steel slag micropowder and exciting agent thereof, make the intensity of this product and water tolerance obtain enhancing, prepared gypsum block has light weight, sound insulation, heat insulation, insulation, moisturizing texts, has good anti-seismic performance simultaneously.Open up the new way that solid waste desulfurated plaster, Comprehensive Utilization of Steel Slag utilize, protected physical environment, saved resource and the energy.
Embodiment
After now specific embodiments of the invention being described in.
Embodiment 1
The present embodiment is take preparation 100kg gypsum block compound as example, and its preparation method is as follows.
Proportioning weigh batching in accordance with regulations, the consumption of each raw material is:
Desulfurated plaster 770kg
Superfine steel slag micropowder 115kg
Perlite 115kg
Slag exciting agent 10.5kg
PP fiber 3.5kg
Retardant 0.5kg
Whipping agent 0.33kg
(1) according to above-mentioned formula weigh batching respectively, by traditional technology method, above-mentioned each raw material (except whipping agent) is put into mixing machine successively, through being fully uniformly mixed, compound.
(2) in mixing machine, first add appropriate water, then add whipping agent, rapid stirring 5 minutes, then adds above-mentioned compound, after stirring, gets final product casting, and maintenance makes light gypsum building block.
The prepared novel light gypsum block of above-mentioned case study on implementation is according to stipulating to test in JC/T 698-2010 " gypsum block " standard, and its every technical performance index all meets relevant national standard regulation.
Embodiment 2
The present embodiment is take preparation 100kg gypsum block compound as example, and its preparation method is as follows.
Proportioning weigh batching in accordance with regulations, the consumption of each raw material is:
Desulfurated plaster 780kg
Superfine steel slag micropowder 120kg
Perlite 100kg
Slag exciting agent 11kg
PP fiber 3kg
Retardant 0.5kg
Whipping agent 0.38kg
(1) according to above-mentioned formula weigh batching respectively, by traditional technology method, above-mentioned each raw material (except whipping agent) is put into mixing machine successively, through being fully uniformly mixed, compound.
(2) in mixing machine, first add appropriate water, then add whipping agent, rapid stirring 5 minutes, then adds above-mentioned compound, after stirring, gets final product casting, and maintenance makes light gypsum building block.
The prepared novel light gypsum block of above-mentioned case study on implementation is according to stipulating to test in JC/T 698-2010 " gypsum block " standard, and its every technical performance index all meets relevant national standard regulation.
Claims (7)
1. a light gypsum building block, is characterized in that the composition of this building block and weight percentage are:
Desulfurated plaster 70～80%
Superfine steel slag micropowder 10～15%
Perlite 10～15%
Slag exciting agent 1～1.5%
PP fiber 0.3～0.5%
Retardant 0.05%
Whipping agent 0.01～0.05%;
Water surplus; Described superfine steel slag micropowder, is converter or electric furnace slag, grinding after iron removal by magnetic separation is processed, its specific surface
>=600m
2/ kg, the superfine steel slag micropowder that particle diameter is less than 30 μ m accounts for the more than 90% of total mass, metal Ferrum content≤0.5%;
The main component of described slag exciting agent has Tai-Ace S 150, cement, sepiolite and kaolin, mixes by the mass ratio of 3:3:1:2;
The main component of described retardant has oxysuccinic acid, Padil, disodium ethylene diamine tetraacetate and calcium increasing agent, mixes by the mass ratio of 1:2.5:2.5:4.
2. light gypsum building block according to claim 1, is characterized in that described desulfurated plaster is beta-type semi-hydrated gypsum, and loose bulk density is 1024Kg/m
3, the presetting period is 5min, and final setting time is 8min, and over dry ultimate compression strength is 20.66MPa, and over dry folding strength is 4.86MPa.
3. light gypsum building block according to claim 1, is characterized in that described perlite, and its fineness is 20-40 order.
4. light gypsum building block according to claim 1, is characterized in that described PP fiber, and its length is 6mm.
5. light gypsum building block according to claim 1, is characterized in that described whipping agent is protein organism.
6. light gypsum building block according to claim 5, is characterized in that described protein organism is: horn matter albumen.
7. prepare according to a method for the light gypsum building block described in any one in claim 1 to 6, it is characterized in that the concrete steps of the method are:
A. by above-mentioned each composition, except whipping agent and water, be fully uniformly mixed into compound;
B. by water and whipping agent mix and blend 5 minutes, then add step a gained compound, after stirring, through casting, maintenance, makes light gypsum building block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410063240.6A CN103819163A (en) | 2014-02-25 | 2014-02-25 | Lightweight gypsum block and its preparation method |
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| CN201410063240.6A CN103819163A (en) | 2014-02-25 | 2014-02-25 | Lightweight gypsum block and its preparation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355587A (en) * | 2014-10-13 | 2015-02-18 | 合肥庭索环保材料有限公司 | Light thermal-insulation building block and production method thereof |
| CN104496381A (en) * | 2014-11-24 | 2015-04-08 | 柳州立洁科技有限公司 | Lightweight building block with high crack resistance |
| CN105459260A (en) * | 2015-11-18 | 2016-04-06 | 魏春玲 | Manufacturing method for prefabricating large steel structure module board with industrial byproduct gypsum |
| CN105541262A (en) * | 2015-12-25 | 2016-05-04 | 青岛佰众化工技术有限公司 | Electric furnace steel slag composite floor tile |
| CN105541252A (en) * | 2015-12-25 | 2016-05-04 | 青岛佰众化工技术有限公司 | Electric furnace steel slag water permeable brick |
| CN105859233A (en) * | 2016-03-28 | 2016-08-17 | 东南大学 | Foam concrete prepared from undisturbed desulfurization gypsum and preparation method thereof |
| CN107298567A (en) * | 2017-06-13 | 2017-10-27 | 安徽筑园景新型建材科技有限公司 | A kind of high-strength abrasion-proof is laid bricks and preparation method thereof |
| CN108218330A (en) * | 2018-02-01 | 2018-06-29 | 济南大学 | A kind of preparation method of desulfurated plaster-steel slag expansion perlite foaming insulation board |
| CN108821721A (en) * | 2018-07-13 | 2018-11-16 | 安徽省神洲建材科技有限公司 | A kind of preparation method of the water-fast suction wave gypsum block of fiber-light granules enhancing |
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| CN102690094A (en) * | 2012-05-17 | 2012-09-26 | 同济大学 | Energy-saving and waste-utilizing concrete block or board and production method thereof |
| CN102964105A (en) * | 2011-09-01 | 2013-03-13 | 安徽森科新材料有限公司 | Citric acid gypsum hollow block and preparation method thereof |
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| US20020164281A1 (en) * | 2001-05-01 | 2002-11-07 | Gopalakrishnan Sethuraman | Method of producing calcium sulfate alpha-hemihydrate |
| CN101830678A (en) * | 2009-03-13 | 2010-09-15 | 上海晋马建材有限公司 | Desulfurized gypsum.phosphorous gypsum without roasting, extruding gypsum block and production method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355587A (en) * | 2014-10-13 | 2015-02-18 | 合肥庭索环保材料有限公司 | Light thermal-insulation building block and production method thereof |
| CN104496381A (en) * | 2014-11-24 | 2015-04-08 | 柳州立洁科技有限公司 | Lightweight building block with high crack resistance |
| CN105459260A (en) * | 2015-11-18 | 2016-04-06 | 魏春玲 | Manufacturing method for prefabricating large steel structure module board with industrial byproduct gypsum |
| CN105541262A (en) * | 2015-12-25 | 2016-05-04 | 青岛佰众化工技术有限公司 | Electric furnace steel slag composite floor tile |
| CN105541252A (en) * | 2015-12-25 | 2016-05-04 | 青岛佰众化工技术有限公司 | Electric furnace steel slag water permeable brick |
| CN105859233A (en) * | 2016-03-28 | 2016-08-17 | 东南大学 | Foam concrete prepared from undisturbed desulfurization gypsum and preparation method thereof |
| CN105859233B (en) * | 2016-03-28 | 2017-12-19 | 东南大学 | A kind of original state desulfurated plaster foam concrete and preparation method thereof |
| CN107298567A (en) * | 2017-06-13 | 2017-10-27 | 安徽筑园景新型建材科技有限公司 | A kind of high-strength abrasion-proof is laid bricks and preparation method thereof |
| CN108218330A (en) * | 2018-02-01 | 2018-06-29 | 济南大学 | A kind of preparation method of desulfurated plaster-steel slag expansion perlite foaming insulation board |
| CN108218330B (en) * | 2018-02-01 | 2021-06-29 | 济南大学 | Preparation method of desulfurized gypsum-steel slag expanded perlite foamed insulation board |
| CN108821721A (en) * | 2018-07-13 | 2018-11-16 | 安徽省神洲建材科技有限公司 | A kind of preparation method of the water-fast suction wave gypsum block of fiber-light granules enhancing |
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Application publication date: 20140528 |