CN104710156A - Rail shield muck unburned and non-autoclaved ceramsite and preparation method thereof - Google Patents
Rail shield muck unburned and non-autoclaved ceramsite and preparation method thereof Download PDFInfo
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- CN104710156A CN104710156A CN201510096915.1A CN201510096915A CN104710156A CN 104710156 A CN104710156 A CN 104710156A CN 201510096915 A CN201510096915 A CN 201510096915A CN 104710156 A CN104710156 A CN 104710156A
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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 relates to a rail shield muck unburned and non-autoclaved ceramsite and a preparation method thereof. The rail shield muck unburned and non-autoclaved ceramsite comprises the following raw materials in parts by weight: 75-100 parts of rail shield muck, 3-5 parts of cement, 3-5 parts of quick lime, 3-5 parts of desulfurization gypsum, 5-10 parts of coal ash, 5-10 parts of water glass, 3-5 parts of sodium sulfate and 30-50 parts of water. The preparation method comprises the following steps: uniformly mixing the solid components; adding water to prepare the ceramsite; naturally maintaining at room temperature to obtain the rail shield muck unburned and non-autoclaved ceramsite. According to the rail shield muck unburned and non-autoclaved ceramsite and the preparation method thereof, the earlier-stage treatment of the shield muck is simple, the muck consumption is high, the preparation process is simple, high-temperature sintering is not required and the industrial waste such as coal ash and desulfurization gypsum can be digested; by adopting an unburned and non-autoclaved process, the preparation method has the advantages of being low in cost, energy-saving, low in carbon and environment-friendly when being compared with the sintering-method based ceramsite preparation process.
Description
Technical field
The present invention relates to solid waste Utilizing question, be specifically related to a kind of track shield structure dregs free of calcining and steam curing haydite and preparation method thereof.
Background technology
For harm to urban ecology such as " occupy arable land, affect the appearance of the city, polluted source, blocking river course, sand play dirt " that a large amount of shield structure dregs produced in Railway Transit Construction process and mud face, carrying out railway traffic engineering dregs recycling is the important channel alleviating urban environment pressure, economize on resources.At present, mature technology and the product of recycling shield structure dregs mainly contain the building material product such as vitrified brick and sintering ceramsite, but its sintering process is complicated, and energy consumption is high; Going into full operation in addition along with railway traffic engineering, a large amount of shield structure dregs and mud produce thereupon, and how fast, low cost and low-carbon (LC) utilize a large amount of shield structure dregs, become the important topic needing solution badly.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of track shield structure dregs free of calcining and steam curing haydite, prepares that haydite technique is loaded down with trivial details, power consumption is large to overcome prior art recycling shield structure dregs, and cost is high, the problem such as not environmentally.
For realizing above-mentioned technical problem, the invention provides a kind of track shield structure dregs free of calcining and steam curing haydite, prepared by each component of following parts by weight: track shield structure dregs 75 ~ 100 parts, cement 3 ~ 5 parts, unslaked lime 3 ~ 5 parts, desulfurated plaster 3 ~ 5 parts, 5 ~ 10 parts, flyash, water glass 5 ~ 10 parts, 3 ~ 5 parts, sodium sulfate, 30 ~ 50 parts, water.
Preferably, described track shield structure dregs free of calcining and steam curing haydite is prepared by each component of following parts by weight: track shield structure dregs 80 ~ 90 parts, cement 3.5 ~ 4.5 parts, unslaked lime 3.5 ~ 4.5 parts, desulfurated plaster 3.5 ~ 4.5 parts, 7 ~ 9 parts, flyash, water glass 6 ~ 8 parts, 3.5 ~ 4.5 parts, sodium sulfate, 35 ~ 45 parts, water.
Preferably, described shield structure dregs is water ratio < 5%, fineness is 0.16mm sieve and the shield structure dregs of screen over-size≤25%.
Preferably, described cement is commercially available 32.5 grades of ordinary Portland cements.
Preferably, described unslaked lime is commercially available 800 order calcium lime powders.
Preferably, described desulfurated plaster is the industrial waste desulfurated plaster of titanium powder plant.
Preferably, described flyash is power plant's industrial waste flyash.
The present invention also provides a kind of preparation method of above-mentioned track shield structure dregs free of calcining and steam curing haydite, specifically comprises the following steps:
(1) prepare burden
Take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder;
(2) balling-up
The water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 1 ~ 5min, adopt spray pattern all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc;
(3) maintenance
The haydite that balling-up is good is put into room-temperature fresh water maintenance 20 ~ 28h to wait and take out, then is positioned over room temperature, wet environment maintenance 22 ~ 32 days, track shield structure dregs free of calcining and steam curing haydite.
The present invention with track shield structure dregs for base material, utilize cement, unslaked lime, water glass, sodium sulfate and trade waste flyash and desulfurated plaster as excitation material, according to alkali-activated material preparation principle, by process optimization, free of calcining and steam curing mode is adopted to prepare haydite.Compared with prior art, the present invention has following beneficial effect:
(1) process in early stage of shield structure dregs is simple, only shield structure dregs need be dried, and levigate to regulation fineness;
(2) this technical matters is simple, without the need to large scale sintering equipment;
(3) this technology is while a large amount of shield structure dregs of process, and the trade waste such as flyash and desulfurated plaster of can also dissolving, has widened the utilization ways of above-mentioned solid waste material;
(4) this technology adopts free of calcining and steam curing technique, compared with conventional sintering technique, has the environment protectings such as energy-conservation and low-carbon (LC).
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described in detail.
Embodiment 1
Weigh each component of following parts by weight: track shield structure dregs 75 parts, cement 3 parts, unslaked lime 3 parts, desulfurated plaster 3 parts, 5 parts, flyash, water glass 5 parts, 3 parts, sodium sulfate, 30 parts, water.Preparation method's concrete steps of track shield structure dregs free of calcining and steam curing haydite comprise: (1) prepares burden: take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder; (2) balling-up: the water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 1min, spray pattern is adopted all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc; (3) maintenance: the haydite that balling-up is good is put into room-temperature fresh water maintenance 20h and wait and take out, then be positioned over room temperature, wet environment maintenance 22 days, track shield structure dregs free of calcining and steam curing haydite.Gained track shield structure dregs free of calcining and steam curing haydite sample is carried out Performance Detection, and recording tap density is 650kg/m
3, cylindrical compress strength is 4.0MPa, 1h water-intake rate is 17.9%.In above composition, the haydite all technical prepared during the shield structure dregs using water ratio < 5%, fineness to be 0.16mm sieve and screen over-size≤25% is better.When cement is commercially available 32.5 grades of ordinary Portland cements, all technical of haydite is best.
Embodiment 2
Weigh each component of following parts by weight: track shield structure dregs 100 parts, cement 5 parts, unslaked lime 5 parts, desulfurated plaster 5 parts, 10 parts, flyash, water glass 10 parts, 5 parts, sodium sulfate, 50 parts, water.Preparation method's concrete steps of track shield structure dregs free of calcining and steam curing haydite comprise: (1) prepares burden: take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder; (2) balling-up: the water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 5min, spray pattern is adopted all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc; (3) maintenance: the haydite that balling-up is good is put into room-temperature fresh water maintenance 28h and wait and take out, then be positioned over room temperature, wet environment maintenance 32 days, track shield structure dregs free of calcining and steam curing haydite.Gained track shield structure dregs free of calcining and steam curing haydite sample is carried out Performance Detection, and recording tap density is 690kg/m
3, cylindrical compress strength is 3.8MPa, 1h water-intake rate is 18.5%.In above material composition, the haydite all technical prepared when unslaked lime is commercially available 800 object calcium lime powder is better.
Embodiment 3
Weigh each component of following parts by weight: track shield structure dregs 87.5 parts, cement 4 parts, unslaked lime 4 parts, desulfurated plaster 4 parts, 7.5 parts, flyash, water glass 7.5 parts, 4 parts, sodium sulfate, 40 parts, water.Preparation method's concrete steps of track shield structure dregs free of calcining and steam curing haydite comprise: (1) prepares burden: take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder; (2) balling-up: the water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 3min, spray pattern is adopted all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc; (3) maintenance: the haydite that balling-up is good is put into room-temperature fresh water maintenance 24h and wait and take out, then be positioned over room temperature, wet environment maintenance 27 days, track shield structure dregs free of calcining and steam curing haydite.Gained track shield structure dregs free of calcining and steam curing haydite sample is carried out Performance Detection, and recording tap density is 710kg/m
3; Cylindrical compress strength is 3.7MPa, 1h water-intake rate is 19.8%.Above preparation process, desulfurated plaster can use the industrial waste desulfurated plaster of titanium powder plant, and flyash can use power plant's industrial waste flyash.
Embodiment 4
Weigh each component of following parts by weight: track shield structure dregs 80 parts, cement 3.5 parts, unslaked lime 3.5 parts, desulfurated plaster 3.5 parts, 7 parts, flyash, water glass 6 parts, 3.5 parts, sodium sulfate, 35 parts, water.Preparation method's concrete steps of track shield structure dregs free of calcining and steam curing haydite comprise: (1) prepares burden: take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder; (2) balling-up: the water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 2min, spray pattern is adopted all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc; (3) maintenance: the haydite that balling-up is good is put into room-temperature fresh water maintenance 26h and wait and take out, then be positioned over room temperature, wet environment maintenance 24.5 days, track shield structure dregs free of calcining and steam curing haydite.Detected by gained track shield structure dregs free of calcining and steam curing haydite sample, recording tap density is 800kg/m
3, cylindrical compress strength is 5MPa, 1h water-intake rate is 15%.
Embodiment 5
Weigh each component of following parts by weight: track shield structure dregs 90 parts, cement 4.5 parts, unslaked lime 4.5 parts, desulfurated plaster 4.5 parts, 9 parts, flyash, water glass 8 parts, 4.5 parts, sodium sulfate, 45 parts, water.Preparation method's concrete steps of track shield structure dregs free of calcining and steam curing haydite comprise: (1) prepares burden: take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder; (2) balling-up: the water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 4min, spray pattern is adopted all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc; (3) maintenance: the haydite that balling-up is good is put into room-temperature fresh water maintenance 22h and wait and take out, then be positioned over room temperature, wet environment maintenance 29.5 days, track shield structure dregs free of calcining and steam curing haydite.Gained track shield structure dregs free of calcining and steam curing haydite sample is carried out Performance Detection, records tap density: be 770kg/m
3, cylindrical compress strength is 4.5MPa, 1h water-intake rate is 16.8%.
Embodiment 6
Weigh each component of following parts by weight: track shield structure dregs 85 parts, cement 4.25 parts, unslaked lime 4.25 parts, desulfurated plaster 4.25 parts, 8 parts, flyash, water glass 7 parts, 4.25 parts, sodium sulfate, 47.5 parts, water.Preparation method's concrete steps of track shield structure dregs free of calcining and steam curing haydite comprise: (1) prepares burden: take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder; (2) balling-up: the water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 2min, spray pattern is adopted all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc; (3) maintenance: the haydite that balling-up is good is put into room-temperature fresh water maintenance 20h and wait and take out, then be positioned over room temperature, wet environment maintenance 25 days, track shield structure dregs free of calcining and steam curing haydite.Gained track shield structure dregs free of calcining and steam curing haydite sample is carried out Performance Detection, and recording tap density is 600kg/m
3, cylindrical compress strength is 3.0MPa, 1h water-intake rate is 18.9%.
Track shield structure dregs free of calcining and steam curing haydite prepared by the various embodiments described above, preparation technology is simple, has the advantage of the environment protectings such as cost is low, energy-conservation, low-carbon (LC); The track shield structure dregs free of calcining and steam curing haydite simultaneously prepared all reaches good standard in technical indicators such as tap density, cylindrical compress strength and 1h water-intake rates.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. a track shield structure dregs free of calcining and steam curing haydite, it is characterized in that, be prepared from by each component of following parts by weight: track shield structure dregs 75 ~ 100 parts, cement 3 ~ 5 parts, unslaked lime 3 ~ 5 parts, desulfurated plaster 3 ~ 5 parts, 5 ~ 10 parts, flyash, water glass 5 ~ 10 parts, 3 ~ 5 parts, sodium sulfate, 30 ~ 50 parts, water.
2. a track shield structure dregs free of calcining and steam curing haydite, it is characterized in that, prepared by each component of following parts by weight: track shield structure dregs 80 ~ 90 parts, cement 3.5 ~ 4.5 parts, unslaked lime 3.5 ~ 4.5 parts, desulfurated plaster 3.5 ~ 4.5 parts, 7 ~ 9 parts, flyash, water glass 6 ~ 8 parts, 3.5 ~ 4.5 parts, sodium sulfate, 35 ~ 45 parts, water.
3. track shield structure dregs free of calcining and steam curing haydite according to claim 1 and 2, is characterized in that: the shield structure dregs that described shield structure dregs is water ratio < 5%, fineness is 0.16mm sieve and screen over-size≤25%.
4. track shield structure dregs free of calcining and steam curing haydite according to claim 1, is characterized in that: described cement is commercially available 32.5 grades of ordinary Portland cements.
5. track shield structure dregs free of calcining and steam curing haydite according to claim 1, is characterized in that: described unslaked lime is commercially available 800 order calcium lime powders.
6. track shield structure dregs free of calcining and steam curing haydite according to claim 1, is characterized in that: described desulfurated plaster is the industrial waste desulfurated plaster of titanium powder plant.
7. track shield structure dregs free of calcining and steam curing haydite according to claim 1, is characterized in that: described flyash is power plant's industrial waste flyash.
8. a preparation method for the arbitrary described track shield structure dregs free of calcining and steam curing haydite of the claims 1 ~ 7, is characterized in that making step comprises:
(1) prepare burden
Take shield structure dregs, cement, unslaked lime, desulfurated plaster, flyash by formula rate, mix and obtain solid powder;
(2) balling-up
The water glass of formula rate and sodium sulfate are dissolved in the water of formula rate, until completely dissolved, in 1 ~ 5min, adopt spray pattern all to drench in the solid powder of step (1) by the solution prepared, granulation balling-up in granulating disc;
(3) maintenance
The haydite that balling-up is good is put into room-temperature fresh water maintenance 20 ~ 28h and wait taking-up, then be positioned over room temperature, wet environment maintenance 22 ~ 32 days.
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| CN201510096915.1A CN104710156B (en) | 2015-03-04 | 2015-03-04 | A kind of track shield dregs haydite free of calcining and steam curing and preparation method thereof |
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Cited By (16)
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| CN105016767A (en) * | 2015-08-18 | 2015-11-04 | 长沙鼎成新材料科技有限公司 | Light non-sintered ceramsite for road capital construction and preparing method thereof |
| CN105503149A (en) * | 2015-12-31 | 2016-04-20 | 文登蓝岛建筑工程有限公司 | Floor tile and preparation method thereof |
| CN107056239A (en) * | 2017-04-26 | 2017-08-18 | 长沙锦佳环保科技有限公司 | A kind of metro shield sintering brick using schist as raw material and production method |
| CN107098634A (en) * | 2017-04-26 | 2017-08-29 | 长沙锦佳环保科技有限公司 | A kind of metro shield dregs is non-burning brick and production method |
| CN109437730A (en) * | 2018-11-05 | 2019-03-08 | 东莞市爱思宝节能科技有限公司 | Build aggregate and preparation method thereof and its application |
| CN110156427A (en) * | 2019-04-18 | 2019-08-23 | 宁波工程学院 | A kind of unburned functionally gradient composite haydite of engineering waste soil and preparation method thereof |
| CN110981245A (en) * | 2019-12-31 | 2020-04-10 | 深圳市华威环保建材有限公司 | Engineering waste soil light recycled aggregate and preparation method and application thereof |
| CN111205061A (en) * | 2020-01-14 | 2020-05-29 | 安徽省高迪环保股份有限公司 | Preparation method of baking-free high-strength fly ash ceramsite |
| CN112194454A (en) * | 2020-10-22 | 2021-01-08 | 中南大学 | Shield muck unfired hollow brick and preparation method thereof |
| CN112250361A (en) * | 2020-10-22 | 2021-01-22 | 河南建博新材料科技有限公司 | Method for preparing baking-free lightweight aggregate from shield waste slurry |
| CN112707685A (en) * | 2020-12-24 | 2021-04-27 | 深圳市华威环保建材有限公司 | Self-compacting concrete and preparation method thereof |
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| CN113603499A (en) * | 2021-06-25 | 2021-11-05 | 福建师范大学 | Method for firing light ceramsite by utilizing shield residual soil and river sludge |
| CN114085053A (en) * | 2021-11-11 | 2022-02-25 | 同济大学 | Waste building residue soil slurry base baking-free early-strength lightweight aggregate and preparation method thereof |
| CN114368925A (en) * | 2022-01-27 | 2022-04-19 | 青岛理工大学 | Method for preparing lightweight aggregate by using engineering mud |
| CN114907085A (en) * | 2022-04-15 | 2022-08-16 | 上海建工建材科技集团股份有限公司 | Building regenerated micro-powder non-fired ceramsite and preparation method thereof |
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| CN105016767A (en) * | 2015-08-18 | 2015-11-04 | 长沙鼎成新材料科技有限公司 | Light non-sintered ceramsite for road capital construction and preparing method thereof |
| CN105503149A (en) * | 2015-12-31 | 2016-04-20 | 文登蓝岛建筑工程有限公司 | Floor tile and preparation method thereof |
| CN107056239A (en) * | 2017-04-26 | 2017-08-18 | 长沙锦佳环保科技有限公司 | A kind of metro shield sintering brick using schist as raw material and production method |
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| CN111205061B (en) * | 2020-01-14 | 2021-12-21 | 安徽省高迪循环经济产业园股份有限公司 | Preparation method of baking-free high-strength fly ash ceramsite |
| CN111205061A (en) * | 2020-01-14 | 2020-05-29 | 安徽省高迪环保股份有限公司 | Preparation method of baking-free high-strength fly ash ceramsite |
| CN112194454A (en) * | 2020-10-22 | 2021-01-08 | 中南大学 | Shield muck unfired hollow brick and preparation method thereof |
| CN112250361A (en) * | 2020-10-22 | 2021-01-22 | 河南建博新材料科技有限公司 | Method for preparing baking-free lightweight aggregate from shield waste slurry |
| CN112707685A (en) * | 2020-12-24 | 2021-04-27 | 深圳市华威环保建材有限公司 | Self-compacting concrete and preparation method thereof |
| CN112707685B (en) * | 2020-12-24 | 2022-07-12 | 深圳市华威环保建材有限公司 | Self-compacting concrete and preparation method thereof |
| CN112939496A (en) * | 2021-02-03 | 2021-06-11 | 合肥工业大学 | Microwave sintering method of clay ceramsite |
| CN112939496B (en) * | 2021-02-03 | 2022-07-22 | 合肥工业大学 | Microwave sintering method of clay ceramsite |
| CN113603499A (en) * | 2021-06-25 | 2021-11-05 | 福建师范大学 | Method for firing light ceramsite by utilizing shield residual soil and river sludge |
| CN114085053A (en) * | 2021-11-11 | 2022-02-25 | 同济大学 | Waste building residue soil slurry base baking-free early-strength lightweight aggregate and preparation method thereof |
| CN114368925A (en) * | 2022-01-27 | 2022-04-19 | 青岛理工大学 | Method for preparing lightweight aggregate by using engineering mud |
| CN114907085A (en) * | 2022-04-15 | 2022-08-16 | 上海建工建材科技集团股份有限公司 | Building regenerated micro-powder non-fired ceramsite and preparation method thereof |
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