CN105330237A - Baking-free brick produced from waste residues of concrete batching plant and preparation method thereof - Google Patents
Baking-free brick produced from waste residues of concrete batching plant and preparation method thereof Download PDFInfo
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- CN105330237A CN105330237A CN201510751829.XA CN201510751829A CN105330237A CN 105330237 A CN105330237 A CN 105330237A CN 201510751829 A CN201510751829 A CN 201510751829A CN 105330237 A CN105330237 A CN 105330237A
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- waste residue
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- burning brick
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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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Abstract
The invention belongs to the technical field of building materials and particularly relates to a baking-free brick produced from waste residues of a concrete batching plant and a preparation method thereof. Raw materials of the baking-free brick include ordinary Portland cement, the waste residues of the concrete batching plant, coal ash, chemi-excitation agents, water reducing agents, cellulose ether, river sand and broken stone. The baking-free brick has good system stability, excellent mechanical properties and good durability. According to the baking-free brick, the waste residues generated in the production process of the concrete batching plant are fully utilized, waste is changed into treasure, the value added of the waste residues of the concrete batching plant is increased, the preparation method is simple, production cost is low, and good economic, social and environmental benefits are obtained.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of with concrete mixing plant waste residue produce non-burning brick and preparation method thereof.
Background technology
Concrete is most important material in construction work.Along with the expanding day of construction scale, skeleton construction becomes building structure main body, and the production of commerical ready-mixed concrete is rapidly developed.Concrete mixing plant all needs to rinse stirrer, transport trolley every day, thus can produce a large amount of slag and effluents.Waste residue is all directly be discharged into fixed venue natural air drying under normal circumstances, can cause great pollution to groundwater resource and environment.Process application is carried out to concrete mixing plant slag and effluent, the production environment that can keep the scene intact, save water of productive use and building material, reduce production cost.
Concrete mixing plant waste residue becomes to be grouped into primarily of hydrolysis product of cement C-S-H gel, ettringite, alkaline matter, fine aggregate, chemical admixture, the mineral admixture etc. that has neither part nor lot in reaction.Waste residue has certain lateral reactivity, and after long-time meta-alkali ambient water is soaked, further hydration reaction can occur for non-hydrated cement particle wherein and mineral admixture.By concrete mixing plant waste residue Some substitute cement for the production of non-burning brick, not only can save cement consumption, reduce production cost, also can reach and turn waste into wealth, reduce the effect of environmental pollution.In addition, the lateral reactivity of waste residue can make up cement consumption to a certain extent and reduce the loss of strength caused, and ensure that the performance of product is unaffected.Visible, adopt concrete mixing plant waste residue Some substitute cement to have excellent economic benefit, social benefit and environmental benefit for the production of non-burning brick.
Summary of the invention
The object of the present invention is to provide a kind of with concrete mixing plant waste residue produce non-burning brick and preparation method thereof, product of the present invention makes full use of the waste residue produced in concrete production process, improve the value added of the waste residue produced in concrete production process, and its preparation method is simple, low production cost, has good economic benefit, social benefit and environmental benefit.
The present invention propose a kind of with concrete mixing plant waste residue produce non-burning brick, be prepared from by ordinary Portland cement, concrete mixing plant waste residue, flyash, chemical activator, water reducer, ether of cellulose, river sand and rubble, the weight ratio of each component is:
Ordinary Portland cement 100
Concrete mixing plant waste residue 10-35
Flyash 10-30
Chemical activator 4-12
Water reducer 0.1-1
Ether of cellulose 0.06-0.14
River sand 230-270
Rubble 440-520;
The preparation process of described concrete mixing plant waste residue is as follows: the mixed slurry produced in concrete delivery truck, main concrete mixer and discarded concrete flushing process, after sandstone is separated, obtain grout, namely grout obtains required concrete mixing plant waste residue after precipitation, filtration, oven dry, grinding.The structure of waste residue is comparatively loose, and particle is comparatively thin, and the volume fraction of the particle of its below 22.67um accounts for 50%, and the size of 97% particle is at below 73.70um.Each component preferably weight ratio is:
Ordinary Portland cement 100
Concrete mixing plant waste residue 15-25
Flyash 15-25
Chemical activator 6-10
Water reducer 0.2-0.7
Ether of cellulose 0.08-0.12
River sand 240-260
Rubble 460-500.
In above-mentioned proportioning, when described component is solution, its weight ratio is roll over the weight ratio admittedly.
In the present invention, described ordinary Portland cement is 42.5 grades of ordinary Portland cements.
In the present invention, described flyash is high-calcium fly ass, and its specific surface area is 410m
2/ kg, Al
2o
3massfraction is 17.00%, SiO
2massfraction is 40.20%, CaO massfraction is 13.60%, Fe
2o
3massfraction is 6.02%, Na
2o massfraction is 1.45%, MgO massfraction is 1.51%, K
2o massfraction is 1.70%, and other substances content are 18.52%.
In the present invention, described chemical activator is formulated according to the mass ratio of 1:0.75:0.75:0.5 by water glass, sodium hydroxide, desulfurated plaster and Tai-Ace S 150.
In the present invention, described water reducer is the one in naphthalene water reducer or poly carboxylic acid series water reducer.
In the present invention, described ether of cellulose is hydroxymethyl-propyl cellulose mystery, and its viscosity is 10,000mPas.
In the present invention, described river sand is medium sand, and fineness modulus is 2.4-2.8, and tap density is (1450-1650) kg/m
3.
In the present invention, described rubble is fine stone, and its particle size range is (0-10) mm.
A kind of non-burning brick preparation method produced with concrete mixing plant waste residue that the present invention proposes, concrete steps are as follows: take ordinary Portland cement, concrete mixing plant waste residue, flyash, chemical activator, water reducer, ether of cellulose, river sand and rubble according to above-mentioned mass ratio, add appropriate stirring water, by mechanical stirring, be fully mixed to homogeneous state, put into mould, apply 1MPa pressure vibration shaping, leave standstill 1d, demoulding, leave standstill maintenance 7d again, obtain required non-burning brick.Amount of water is the 20%-30% of ordinary Portland cement, concrete mixing plant waste residue and flyash total mass.
Product of the present invention be a kind of with concrete mixing plant waste residue produce non-burning brick, its feature is as follows:
1. in the present invention, described concrete mixing plant waste residue becomes to be grouped into primarily of hydrolysis product of cement C-S-H gel, ettringite, alkaline matter, fine aggregate, chemical admixture, the mineral admixture etc. that has neither part nor lot in reaction, waste residue is after long-time meta-alkali ambient water is soaked, can be there is further hydration reaction in non-hydrated cement particle wherein and mineral admixture, produce certain make up effect to system intensity.The structure of waste residue is comparatively loose, and particle size is close with flyash, and the volume fraction of the particle of its below 22.67um accounts for 50%, and the size of 97% particle is at below 73.70um.
2. in the present invention, described flyash is high-calcium fly ass, and under chemical activator effect, it is high that it has early strength, the feature that time of coagulation is fast, can significantly improve the early strength of gelling system; In addition, the three-dimensional network gelinite of its hydrated product mainly based on covalent linkage, tight with aggregate interface cohesion, effectively can improve the Interface adhesive strength of traditional portland gelling system.
3. product of the present invention makes full use of the waste residue produced in concrete mixing plant production process, adopt the measure of waste residue equivalent substitution cement, under the prerequisite of production assurance, not only save cement consumption, reduce production cost, and reach and turn waste into wealth, reduce the effect of environmental pollution, present good economic benefit, social benefit and environmental benefit.
Embodiment
Further illustrate the present invention below by embodiment: the present embodiment is implemented under with technical solution of the present invention prerequisite, give detailed embodiment and specific operation process.
Embodiment 1, a kind of with concrete mixing plant waste residue produce non-burning brick, by ordinary Portland cement 100, concrete mixing plant waste residue 10, flyash 10, chemical activator 4, poly carboxylic acid series water reducer 0.1, ether of cellulose 0.06, the weight ratio of river sand 230 and rubble 440 is formulated.Add water by 20% of ordinary Portland cement, concrete mixing plant waste residue and magnetic waste material total mass and stir, put into mould, apply 1MPa pressure vibration shaping, leave standstill 1d, demoulding, then leave standstill maintenance 7d, obtain required non-burning brick.Test result is as shown in table 1.
Embodiment 2, a kind of with concrete mixing plant waste residue produce non-burning brick, by ordinary Portland cement 100, concrete mixing plant waste residue 15, flyash 15, chemical activator 6, naphthalene water reducer 0.7, ether of cellulose 0.08, the weight ratio of river sand 240 and rubble 460 is formulated.Add water by 23% of ordinary Portland cement, concrete mixing plant waste residue and magnetic waste material total mass and stir, put into mould, apply 1MPa pressure vibration shaping, leave standstill 1d, demoulding, then leave standstill maintenance 7d, obtain required non-burning brick.Test result is as shown in table 1.
Embodiment 3, a kind of with concrete mixing plant waste residue produce non-burning brick, by ordinary Portland cement 100, concrete mixing plant waste residue 35, flyash 30, chemical activator 12, naphthalene water reducer 1, ether of cellulose 0.14, the weight ratio of river sand 270 and rubble 520 is formulated.Add water by 30% of ordinary Portland cement, concrete mixing plant waste residue and magnetic waste material total mass and stir, put into mould, apply 1MPa pressure vibration shaping, leave standstill 1d, demoulding, then leave standstill maintenance 7d, obtain required non-burning brick.Test result is as shown in table 1.
Embodiment 4, a kind of with concrete mixing plant waste residue produce non-burning brick, by ordinary Portland cement 100, concrete mixing plant waste residue 25, flyash 25, chemical activator 10, poly carboxylic acid series water reducer 0.2, ether of cellulose 0.12, the weight ratio of river sand 260 and rubble 500 is formulated.Add water by 26% of ordinary Portland cement, concrete mixing plant waste residue and magnetic waste material total mass and stir, put into mould, apply 1MPa pressure vibration shaping, leave standstill 1d, demoulding, then leave standstill maintenance 7d, obtain required non-burning brick.Test result is as shown in table 1.
Table 1 embodiment the performance test results
Claims (10)
1. one kind with concrete mixing plant waste residue produce non-burning brick, it is characterized in that being prepared from by ordinary Portland cement, concrete mixing plant waste residue, flyash, chemical activator, water reducer, ether of cellulose, river sand and rubble, the weight ratio of each component is:
Ordinary Portland cement 100
Concrete mixing plant waste residue 10-35
Flyash 10-30
Chemical activator 4-12
Water reducer 0.1-1
Ether of cellulose 0.06-0.14
River sand 230-270
Rubble 440-520
In above-mentioned proportioning, when described component is solution, its weight ratio is roll over the weight ratio admittedly;
The preparation process of described concrete mixing plant waste residue is as follows: the mixed slurry produced in concrete delivery truck, main concrete mixer and discarded concrete flushing process, grout is obtained after sandstone is separated, namely grout obtains required concrete mixing plant waste residue after precipitation, filtration, oven dry, grinding, the structure of waste residue is comparatively loose, particle is thinner, the volume fraction of the particle of its below 22.67um accounts for 50%, and the particle of 97% is at below 73.70um.
2. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that the weight ratio of each component is:
Ordinary Portland cement 100
Concrete mixing plant waste residue 15-25
Flyash 15-25
Chemical activator 6-10
Water reducer 0.2-0.7
Ether of cellulose 0.08-0.12
River sand 240-260
Rubble 460-500.
3. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that described ordinary Portland cement is 42.5 grades of ordinary Portland cements.
4. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that described flyash is high-calcium fly ass, its specific surface area is 410m
2/ kg, Al
2o
3massfraction is 17.00%, SiO
2massfraction is 40.20%, CaO massfraction is 13,60%, Fe
2o
3massfraction is 6.02%, Na
2o massfraction is 1.45%, MgO massfraction is 1.51%, K
2o massfraction is 1.70%, and other substances content are 18.52%.
5. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that described chemical activator is formulated according to the mass ratio of 1:0.75:0.75:0.5 by water glass, sodium hydroxide, desulfurated plaster and Tai-Ace S 150.
6. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that described water reducer is the one in naphthalene water reducer or poly carboxylic acid series water reducer.
7. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that described ether of cellulose is hydroxymethyl-propyl cellulose mystery, its viscosity is 10,000mPas.
8. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that described river sand is medium sand, fineness modulus is 2.4-2.8, and tap density is (1450-1650) kg/m
3.
9. according to claim 1 a kind of with concrete mixing plant waste residue produce non-burning brick, it is characterized in that described rubble is fine stone, its particle size range is (0-10) mm.
10. a kind of non-burning brick preparation method produced with concrete mixing plant waste residue as claimed in claim 1, it is characterized in that concrete steps are: take ordinary Portland cement, concrete mixing plant waste residue, flyash, chemical activator, water reducer, ether of cellulose, river sand and rubble according to above-mentioned mass ratio, add appropriate stirring water, pass through mechanical stirring, be fully mixed to homogeneous state, put into mould, apply 1MPa pressure vibration shaping, leave standstill 1d, demoulding, leave standstill maintenance 7d again, obtain required non-burning brick; Amount of water is the 20%-30% of ordinary Portland cement, concrete mixing plant waste residue and flyash total mass.
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|---|---|---|---|
| CN201510751829.XA CN105330237A (en) | 2015-11-09 | 2015-11-09 | Baking-free brick produced from waste residues of concrete batching plant and preparation method thereof |
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|---|---|---|---|
| CN201510751829.XA CN105330237A (en) | 2015-11-09 | 2015-11-09 | Baking-free brick produced from waste residues of concrete batching plant and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311618A (en) * | 2017-06-21 | 2017-11-03 | 国网江西省电力公司经济技术研究院 | A kind of formula of glazed tiles and preparation method thereof |
| CN108892427A (en) * | 2018-08-07 | 2018-11-27 | 深圳市为海建材有限公司 | A kind of solid waste is non-burning brick and preparation method thereof |
| CN109133789A (en) * | 2018-09-07 | 2019-01-04 | 大元建业集团股份有限公司 | A kind of foamed concrete and preparation method thereof and assembled architecture component using it |
| CN110698123A (en) * | 2019-11-18 | 2020-01-17 | 贵州彬腾越新型建材有限公司 | Energy-saving environment-friendly aerated brick and processing technology thereof |
| CN110963735A (en) * | 2019-12-22 | 2020-04-07 | 湖北工业大学 | Nano crystal nucleus early strength agent for steam-curing-free precast concrete member |
| CN111548115A (en) * | 2020-05-24 | 2020-08-18 | 江西省科学院应用化学研究所 | Preparation method for preparing environment-friendly insulating brick from tailing waste residues |
| CN112266201A (en) * | 2020-09-22 | 2021-01-26 | 青岛理工大学 | Building waste non-fired recycled brick and preparation method thereof |
| CN112521115A (en) * | 2020-12-07 | 2021-03-19 | 中建西部建设湖南有限公司 | Green alkali-activated material for repairing protection and preparation method thereof |
| CN112573892A (en) * | 2020-12-11 | 2021-03-30 | 中国十九冶集团有限公司 | Concrete solid waste modified raw soil material and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311618A (en) * | 2017-06-21 | 2017-11-03 | 国网江西省电力公司经济技术研究院 | A kind of formula of glazed tiles and preparation method thereof |
| CN108892427A (en) * | 2018-08-07 | 2018-11-27 | 深圳市为海建材有限公司 | A kind of solid waste is non-burning brick and preparation method thereof |
| CN109133789A (en) * | 2018-09-07 | 2019-01-04 | 大元建业集团股份有限公司 | A kind of foamed concrete and preparation method thereof and assembled architecture component using it |
| CN110698123A (en) * | 2019-11-18 | 2020-01-17 | 贵州彬腾越新型建材有限公司 | Energy-saving environment-friendly aerated brick and processing technology thereof |
| CN110963735A (en) * | 2019-12-22 | 2020-04-07 | 湖北工业大学 | Nano crystal nucleus early strength agent for steam-curing-free precast concrete member |
| CN111548115A (en) * | 2020-05-24 | 2020-08-18 | 江西省科学院应用化学研究所 | Preparation method for preparing environment-friendly insulating brick from tailing waste residues |
| CN112266201A (en) * | 2020-09-22 | 2021-01-26 | 青岛理工大学 | Building waste non-fired recycled brick and preparation method thereof |
| WO2022062493A1 (en) * | 2020-09-22 | 2022-03-31 | 青岛理工大学 | Building waste burn-free regeneration brick and preparation method thereof |
| CN112521115A (en) * | 2020-12-07 | 2021-03-19 | 中建西部建设湖南有限公司 | Green alkali-activated material for repairing protection and preparation method thereof |
| CN112573892A (en) * | 2020-12-11 | 2021-03-30 | 中国十九冶集团有限公司 | Concrete solid waste modified raw soil material and preparation method thereof |
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Application publication date: 20160217 |