CN104098306A - Unfired water-permeable brick and preparation method thereof - Google Patents

Unfired water-permeable brick and preparation method thereof Download PDF

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Publication number
CN104098306A
CN104098306A CN201410350308.9A CN201410350308A CN104098306A CN 104098306 A CN104098306 A CN 104098306A CN 201410350308 A CN201410350308 A CN 201410350308A CN 104098306 A CN104098306 A CN 104098306A
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orders
desulfurization slag
cement
water
permeable brick
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CN104098306B (en
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罗绍华
沈惠良
张洪友
于金冉
黄晓东
何玮淑
王欣
刘广
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Northeastern University China
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Northeastern University China
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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

Abstract

The invention discloses an unfired water-permeable brick and a preparation method thereof and belongs to the technical field of preparation of floor bricks. The water-permeable brick takes desulfurization slag as aggregate, takes cement as a reinforcing agent and a binder and takes Na2SiO3*9H2O and NaOH as activators; the desulfurization slag, the cement, the NaOH and the Na2SiO3*9H2O with different size fractions are evenly mixed in a certain proportion and placed in a model to be solidified and formed at the normal temperature; the unfired water-permeable brick which is high in water permeability, good in water retention, high in strength, anti-skid and abrasion-resistant is prepared through curing treatment.

Description

A kind of baking-free water-permeable brick and preparation method thereof
Technical field
The invention belongs to floor tile preparing technical field, particularly a kind of baking-free water-permeable brick and preparation method thereof.
Background technology
Desulfurization slag is the waste residue producing in circulating fluidized bed (CFB) boiler desulfurization operation, because its particle is larger, because wind speed is not enough so that its fluidisation is settled down to furnace bottom, can obtain through slag-drip opening.Desulfurization slag is trade waste, is one of industrial residue that the current discharge capacity of China is larger.Desulfurization slag is a kind of local resource that misplaced, and rationally utilizing desulfurization slag is a problem in the urgent need to address.
Traditional water-permeable brick is prepared into cellular concrete mainly with common rubble and forms, or is more senior polymer fiber concrete permeable brick, ecological husky base water-permeable brick etc.The research of preparing at present seepy material taking desulfurization slag as aggregate is left to be desired.
Patent 201110442054.X has introduced a kind of method of utilizing sugared filter mud to prepare water-permeable brick, and the method is that thermal power plants flyash is main raw material taking industrial residue sugar filter mud as pore former, and employing clay is made binding agent, waste ceramic is aggregate.Raw material obtains finished product through operations such as batching, stirring, old, moulding, dry, sintering.Above-mentioned water-permeable brick is taking solid waste coal ash as main raw material, but in preparation process, needs sintering, makees binding agent with clay, wastes in a large number coal resources, damage to land.Patent 201220733300.7 has been introduced a kind of double-deck seepage brick that utilizes slag and Desert Sand to do aggregate, and described seepage brick upper strata is that Desert Sand and aqueous high molecular binding agent mix the desert sand bed that compacting forms; Seepage brick bottom is to mix by slag, water and silicate cement the inorganic material layer that compacting forms, take full advantage of Waste Slag, but its binding agent adopting is one of aqueous epoxy resins, polyvinyl acetate resin, polyvinyl alcohol or combination, belong to macromolecular material, greatly increased preparation cost.
Summary of the invention
The object of this invention is to provide a kind of baking-free water-permeable brick and preparation method thereof, it is characterized in that, described baking-free water-permeable brick is taking desulfurization slag as aggregate, and cement is toughener and binding agent, Na 2siO 39H 2o and NaOH are exciting agent, mix, normal temperature consolidated formation; Wherein, desulfurization slag accounts for 40～76wt.% of raw material total mass, and cement accounts for 20～50wt.% of raw material total mass, NaOH and Na 2siO 39H 2o accounts for 4～10wt.% of raw material total mass.
Described desulfurization slag proportioning is 30 orders: 40 orders: 50 object ratios of quality and the number of copies are 1:1:1～6:1:1.
Described NaOH and Na 2siO 39H 2the mass ratio of O is 1:1.
The preparation method of described baking-free water-permeable brick, is characterized in that, comprises step:
1) desulfurization slag is carried out to stage treatment, obtain the desulfurization slag that grade is different, its grade is 30 orders, 40 orders and 50 orders;
2) by desulfurization slag different grade in mass ratio proportioning be 30 orders: 40 orders: 50 orders=1:1:1～6:1:1, mixes;
3) NaOH and Na 2siO 39H 2o weighs for 1:1 in mass ratio, adds tap water to stir, and makes it to dissolve completely;
4) account for 40～76wt.% of raw material total mass by desulfurization slag, cement accounts for 20～50wt.% of raw material total mass, NaOH and Na 2siO 39H 2the ratio that O accounts for 4～10wt.% of raw material total mass mixes;
5) compound of step 4) is positioned in model, according to conventional brickmaking compression molding, natural consolidation, maintenance at normal temperatures obtains finished product.
Described maintenance is to the maintenance more than 28 days under wet environment and room temperature condition of the water-permeable brick after moulding.
The invention has the beneficial effects as follows taking solid waste desulfurization slag as aggregate, realized the second stage employ of resource, compared with vitrified brick, the present invention avoids sintering, has saved a large amount of coal resources.There is good water-permeable and humidity-preserving type, can fine alleviation city due to the municipal drainage pressure and the tropical island effect that are caused by waterproof ground bedding, be conducive to keep the water balance in city, can improve the edatope of ground vegetation growth, regulate the eubiosis, can improve the anti-skid on ground at snow day.Realize save energy resource, reduce the discharge of solid waste, promote water cycle, improve the ecological environment.Be mainly used in the laying of the pavior brick of public places such as needing the walkway of infiltration rapidly, square, gardens.
Embodiment
The invention provides a kind of baking-free water-permeable brick and preparation method thereof, below by several concrete case study on implementation, the present invention is further elaborated.
Embodiment 1
Take NaOH, the Na of equivalent 2siO 39H 2o is 18g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=1:1:1 takes desulfurization slag 72g and cement 90g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, add and dissolve NaOH, Na completely 2siO 39H 2the solution of O, continues to stir, and desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 28 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 41.09MPa, permeability rate 0.0156cm/s.
Embodiment 2
Take NaOH, the Na of equivalent 2siO 39H 2o is 12.6g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=4:1:1 takes desulfurization slag 78g and cement 90g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, add and dissolve NaOH, Na completely 2siO 39H 2the solution of O, continues to stir, and desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 32 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 40.68MPa, permeability rate 0.0261cm/s.
Embodiment 3
Take NaOH, the Na of equivalent 2siO 39H 2o is 7.5g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=3:1:1 takes desulfurization slag 83g and cement 90g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, add and dissolve NaOH, Na completely 2siO 39H 2the solution of O, continues to stir, and desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 30 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 40.59MPa, permeability rate 0.0192cm/s.
Embodiment 4
Take NaOH, the Na of equivalent 2siO 39H 2o is 18g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=2:1:1 takes desulfurization slag 90g and cement 72g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, add and dissolve NaOH, Na completely 2siO 39H 2the solution of O, continues to stir, and desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 29 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 36.23MPa, permeability rate 0.0187cm/s.
Embodiment 5
Take NaOH, the Na of equivalent 2siO 39H 2o is 12.6g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=6:1:1 takes desulfurization slag 96g and cement 72g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 28 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 35.98MPa, permeability rate 0.0329cm/s.
Embodiment 6
Take NaOH, the Na of equivalent 2siO 39H 2o is 7.5g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=1:1:1 takes desulfurization slag 102g and cement 72g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 28 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 35.98MPa, permeability rate 0.0203cm/s.
Embodiment 7
Take NaOH, the Na of equivalent 2siO 39H 2o is 18g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=4:1:1 takes desulfurization slag 108g and cement 54g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 32 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 33.66MPa, permeability rate 0.0308cm/s.
Embodiment 8
Take NaOH, the Na of equivalent 2siO 39H 2o is 12.6g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=3:1:1 takes desulfurization slag 113g and cement 54g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 28 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 33.33MPa, permeability rate 0.0202cm/s.
Embodiment 9
Take NaOH, the Na of equivalent 2siO 39H 2o is 7.5g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=2:1:1 takes desulfurization slag: 120g and cement 54g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 28 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 33.55MPa, permeability rate 0.0233cm/s.
Embodiment 10
Take NaOH, the Na of equivalent 2siO 39H 2o is 18g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=6:1:1 takes desulfurization slag 117g and cement 45g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 29 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 32.53MPa, permeability rate 0.0400cm/s.
Embodiment 11
Take NaOH, the Na of equivalent 2siO 39H 2o is 12.6g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=1:1:1 takes desulfurization slag 123g and cement 45g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 28 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 32.10MPa, permeability rate 0.0271cm/s.
Embodiment 12
Take NaOH, the Na of equivalent 2siO 39H 2o is 7.2g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=1:1:1 takes desulfurization slag 127g and cement 45g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 28 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 32.70MPa, permeability rate 0.0366cm/s.
Embodiment 13
Take NaOH, the Na of equivalent 2siO 39H 2o is 18g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=3:1:1 takes desulfurization slag 127g and cement 36g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 29 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 30.97Mpa, permeability rate 0.0375cm/s.
Embodiment 14
Take NaOH, the Na of equivalent 2siO 39H 2o is 12.6g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=2:1:1 takes desulfurization slag 131g and cement 36g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 29 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 30.93MPa, permeability rate 0.0519cm/s.
Embodiment 15
Take NaOH, the Na of equivalent 2siO 39H 2o is 7.5g altogether, puts into beaker, adds suitable quantity of water, stirs, and obtains dissolving completely; According to size fractionated mass ratio 30 orders: 40 orders: 50=6:1:1 takes desulfurization slag 136g and cement 36g.
Desulfurization slag and cement are put into agitator for cement mortar container and stir, stir, dissolve solution completely, continue to stir, desulfurization slag, cement and solution are evenly mixed.Make the rectangular parallelepiped experiment fragment of brick of 94*46*22mm by the method for compression molding.To the maintenance 29 days under wet environment and room temperature condition of the experiment fragment of brick after moulding.Experiment fragment of brick is carried out to water permeability, compressive property test.Test result is ultimate compression strength 30.43MPa, permeability rate 0.0782cm/s.

Claims (5)

1. a baking-free water-permeable brick, is characterized in that, described baking-free water-permeable brick is taking desulfurization slag as aggregate, and cement is toughener and binding agent, Na 2siO 39H 2o and NaOH are exciting agent, mix, normal temperature consolidated formation; Wherein, desulfurization slag accounts for 40～76wt.% of raw material total mass, and cement accounts for 20～50wt.% of raw material total mass, NaOH and Na 2siO 39H 2o accounts for 4～10wt.% of raw material total mass.
2. a kind of baking-free water-permeable brick according to claim 1, is characterized in that, described desulfurization slag grade ratio is 30 orders: 40 orders: 50 object ratios of quality and the number of copies are 1:1:1～6:1:1.
3. a kind of baking-free water-permeable brick according to claim 1, is characterized in that described NaOH and Na 2siO 39H 2the mass ratio of O is 1:1.
4. a preparation method for baking-free water-permeable brick, is characterized in that, comprises step:
1) desulfurization slag is carried out to stage treatment, obtain the desulfurization slag that grade is different, its grade is 30 orders, 40 orders and 50 orders;
2) by desulfurization slag different grade in mass ratio proportioning be 30 orders: 40 orders: 50 orders=1:1:1～6:1:1, mixes;
3) NaOH and Na 2siO 39H 2o weighs for 1:1 in mass ratio, adds tap water to stir, and makes it to dissolve completely;
4) account for 40～76wt.% of raw material total mass by desulfurization slag, cement accounts for 20～50wt.% of raw material total mass, NaOH and Na 2siO 39H 2the ratio that O accounts for 4～10wt.% of raw material total mass mixes;
5) compound of step 4) is positioned in model, according to conventional brickmaking compression molding, natural consolidation, maintenance at normal temperatures obtains finished product.
5. a kind of preparation method of baking-free water-permeable brick according to claim 4, is characterized in that, described maintenance is to the maintenance more than 28 days under wet environment and room temperature condition of the water-permeable brick after moulding.
CN201410350308.9A 2014-07-21 2014-07-21 A kind of baking-free water-permeable brick and preparation method thereof Active CN104098306B (en)

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN104402388A (en) * 2014-11-28 2015-03-11 无锡晨驰环保科技股份有限公司 Water-permeable water-holding brick and preparation method thereof
CN106007790A (en) * 2016-05-18 2016-10-12 西南科技大学 Self-permeable light bonding material and preparation method thereof
CN106673529A (en) * 2017-01-03 2017-05-17 佛山石湾鹰牌陶瓷有限公司 Unfired water-permeable brick with antimicrobial and deodorant effects and preparation method thereof
CN111018427A (en) * 2019-12-17 2020-04-17 佛山科学技术学院 Baking-free brick and preparation method thereof
CN111592250A (en) * 2020-05-29 2020-08-28 中北大学 Desulphurization residue geopolymer and preparation method and application thereof

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Publication number Priority date Publication date Assignee Title
CN104402388A (en) * 2014-11-28 2015-03-11 无锡晨驰环保科技股份有限公司 Water-permeable water-holding brick and preparation method thereof
CN106007790A (en) * 2016-05-18 2016-10-12 西南科技大学 Self-permeable light bonding material and preparation method thereof
CN106673529A (en) * 2017-01-03 2017-05-17 佛山石湾鹰牌陶瓷有限公司 Unfired water-permeable brick with antimicrobial and deodorant effects and preparation method thereof
CN106673529B (en) * 2017-01-03 2019-08-27 佛山石湾鹰牌陶瓷有限公司 A kind of baking-free water-permeable brick and preparation method thereof with antibacterial and deodorization
CN111018427A (en) * 2019-12-17 2020-04-17 佛山科学技术学院 Baking-free brick and preparation method thereof
CN111592250A (en) * 2020-05-29 2020-08-28 中北大学 Desulphurization residue geopolymer and preparation method and application thereof
CN111592250B (en) * 2020-05-29 2022-03-01 中北大学 Desulphurization residue geopolymer and preparation method and application thereof

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