CN101016200B - Construction curing agent and application thereof in chromic slag building block - Google Patents
Construction curing agent and application thereof in chromic slag building block Download PDFInfo
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- CN101016200B CN101016200B CN2007100100921A CN200710010092A CN101016200B CN 101016200 B CN101016200 B CN 101016200B CN 2007100100921 A CN2007100100921 A CN 2007100100921A CN 200710010092 A CN200710010092 A CN 200710010092A CN 101016200 B CN101016200 B CN 101016200B
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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 discloses an architectural hardener and application in the chromium slag building brick, which comprises the following parts: 30-50% calcium aluminate, 30-40% silica, 10-20% bivalent ferric material, 5-10 % tourmaline and 5-7% solid water glass. The making method comprises the following steps: 1) feteching 10-20% chromium, 10-20% cement, 20-50% solid architectural rubbish, 5-15% clay and 1-5% hardener; 2) mixing these raw materials to stir evenly; adding 10-55% water; stirring; making dry hard cement clod; 3) loading the cement into specimen mold; pressing; stripping; culturing.
Description
Technical field
The invention belongs to solidifying agent and environmental protection Application Areas thereof, relate in particular to a kind of construction curing agent and the Application Areas in chromic slag building block thereof.
Background technology
The solid building waste is to the harm and the processing and utilizing problem of environment, paid more and more attention.Process all kinds of building blocks with solid building waste and mine aggregate chips the like waste, both realized utilization of waste material, environmental again, meet the industry policy that the relevant utilization of waste material of country promotes recycling economy development.
The inoganic solids building waste mainly is made up of dregs, residual sand, garrulous bricks and stones, broken concrete, pavement asphalt fragment the like waste, and various inorganic materials component contents differ.If the utilization of inoganic solids building waste is focused in the filling of the production of all kinds of building blocks and ground, roadbed, then can realize a large amount of building waste utilization of waste material.Do the industry policy that not only meets country like this, also meet the requirement of protection environment, save energy, realization recycling economy.
In addition, 20～300,000 tons of chromium slags of annual approximately discharge in present domestic metallurgy and the chemical industry.Objectionable constituent in the chromium slag mainly are hexavalent chromiums such as solubility chromic acid sodium, solubility in acid yellow ultramarine.These sexavalent chromes and its loss are spread and constituted the pollution hazard of ecotope is the strong basicity harm of chromium slag.When the chromium slag was stored up in the open, a large amount of hexavalent chromiums oozed, runs off, infiltrates the face of land with rainwater is molten after long-term rain dashes pouring, thereby polluted underground water has also polluted rivers, lake, and then harm farmland, aquatic products and HUMAN HEALTH.Hexavalent chromium is very big to the murder by poisoning of HUMAN HEALTH.Its compound has very strong oxygenizement, and digestive tube, respiratory tract, skin and the mucous membrane of human body all had harm.
At present, the treatment of chromate slag of China generally has following approach:
1) stocking and storing method
For preventing that the chromium slag runs off and enlarge pollution of chromium, can take the antiseepage of slag muck ground and add a cover the stocking and storing method of waterproof, but must accomplish loam cake rain-tight water, does not ooze the bottom, and attached liquid and to drench immersion liquid not excessive in the slag could guarantee to prevent the effect of pollution of chromium.This method reliability is extremely low, pollutes still to exist, and takies certain soil.
2) harmless treatment
In the chromium slag, add an amount of chemical industry reductive agent, under certain processing conditions, can make the Sodium chromate, the yellow ultramarine that exist with the sexavalent chrome form convert harmless trivalent chromium state to.
3) comprehensive utilization
The chromium slag is handled through detoxification, can fully utilize.
The chromium slag also can be processed into product directly as the surrogate of Industrial materials without harmless treatment, reaches and both eliminates chromic harm, is fully utilized as the novel material resource again.
Aforesaid method all is difficult to apply because of problems such as cost height and complex process.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art and provides a kind of and have wide range of applications, and the effect of detoxifcation sexavalent chrome is obvious, and fixed building block density is good, the intensity height, and material source is wide, cheap construction curing agent.In addition, the present invention also provides the application of a kind of such solidifying agent in chromic slag building block.
The object of the present invention is achieved like this: construction curing agent, contain: calcium aluminate, silicon-dioxide, ferrous iron class raw material, tourmalinite, solid water glass.
As a kind of preferred version, calcium aluminate, silicon-dioxide, ferrous iron class raw material, tourmalinite and solid water glass are followed successively by in weight percentage in the above-mentioned construction curing agent: 30～50%, 30～40%, 10～20%, 5～10%, 5%～7%.
The application of above-mentioned construction curing agent in chromic slag building block, can implement according to following steps:
1) gets chromium slag 10～20%, cement 10～20%, solid building waste 20～50%, clay 5～15%, construction curing agent 1～5%;
2) with after the described raw material thing of the step 1) mixing and stirring, add water 10～55%, stir, make the dry cement-earth;
3) with step 2) die trial of packing into of gained dry cement-earth, compacting, the demoulding, maintenance.
As a kind of preferred version, cement of the present invention can be selected PO or PS32.5.
As another kind of preferred version, described solid building waste diameter is 4～5MM.
Stable performance of the present invention, material source is wide, and the consolidation strength height has wide range of applications, and is cheap, can realize mineral material at lower cost, and simple technology reaches both eliminates chromic harm, the purpose that the novel material resource is fully utilized.
Utilize the present invention to make baking-free building blocks, can make the building block mean compressive strength at 20MPa～30MPa by regulating each material dosage.Total chromium concn is lower than allowed band in the chromium slag building block transudate, can stand extreme natural environment and secondary pollution can not occur.
Chromium sesquioxide reaction in calcium aluminate expansion raw material, silicon-dioxide and the chromium slag; Sodium chromate in ferrous iron class raw material, acetylene and the chromium slag, yellow ultramarine reaction make the sexavalent chrome of being made up of Sodium chromate, yellow ultramarine in the chromium slag become trivalent chromium, and the total chrome content in the control building block is lower than national standard.
A certain proportion of construction curing agent, chromium slag and an amount of cement, particulate state building waste, clay are added water stir, make all kinds of building blocks and use.Cement plays solidification; The particulate state building waste plays the intensity effect; Solid water glass guarantees the stable of the softening index of building block; Calcium sulphoaluminate, active silica, powdery water glass, clay play densification, to guarantee that the chromium slag does not absorb water, bleeding not, guarantee that trivalent chromium in the building block loses and meet alkaline matter and be reduced to chromic condition, and guarantee stable (the comprehensive action result) of building block physical and chemical index.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.Protection scope of the present invention will not only be confined to the statement of following content.
Fig. 1 is chromium slag calculus body technological process of production figure of the present invention.
Embodiment
Embodiment 1
As shown in the figure, a kind of construction curing agent, it contains: calcium aluminate expansion raw material, silicon-dioxide, ferrous iron class raw material, acetylene, solid water glass.
Above-mentioned calcium aluminate expansion raw material, silicon-dioxide, ferrous iron class raw material, tourmalinite and solid water glass are followed successively by in weight percentage:
Calcium aluminate 40%
Silicon-dioxide 30%
Ferrous iron class raw material 15%
Tourmalinite 8%
Solid water glass 7%
Embodiment 2
A kind of construction curing agent, it contains: calcium aluminate expansion raw material, silicon-dioxide, ferrous iron class raw material, acetylene, solid water glass.
Above-mentioned calcium aluminate, silicon-dioxide, ferrous iron class raw material, tourmalinite and solid water glass are followed successively by in weight percentage:
Calcium aluminate 40%
Silicon-dioxide 35%
Ferrous iron class raw material 10%
Tourmalinite 10%
Solid water glass 5%
Embodiment 3
A kind of construction curing agent, it contains: calcium aluminate expansion raw material, silicon-dioxide, ferrous iron class raw material, acetylene, solid water glass.
Above-mentioned calcium aluminate, silicon-dioxide, ferrous iron class raw material, tourmalinite and solid water glass are followed successively by in weight percentage:
Calcium aluminate 35%
Silicon-dioxide 35%
Ferrous iron class raw material 15%
Tourmalinite 10%
Solid water glass 5%
Embodiment 4
The application of above-mentioned construction curing agent in chromic slag building block, can implement according to following steps:
1) in weight percentage, getting chromium slag 10%, PO cement 10%, diameter is solid building waste 20%, clay 5%, the solidifying agent 1% of 4MM;
2) in weight percentage, after the described raw material thing of step 1) mixing and stirring, add water 54%, stir, make the dry cement-earth;
3) with step 2) die trial of packing into of gained dry cement-earth, compacting, the demoulding, maintenance.
Embodiment 5
The application of above-mentioned construction curing agent in chromic slag building block, can implement according to following steps:
1) in weight percentage, getting chromium slag 15%, PS32.5 cement 15%, diameter is solid building waste 40%, clay 15%, the solidifying agent 5% of 5MM;
2) in weight percentage, after the described raw material thing of step 1) mixing and stirring, add water 10%, stir, make the dry cement-earth;
3) with step 2) die trial of packing into of gained dry cement-earth, compacting, the demoulding, maintenance.
Embodiment 6
The application of above-mentioned construction curing agent in chromic slag building block, can implement according to following steps:
1) in weight percentage, getting chromium slag 20%, PS32.5 cement 10%, diameter is 4.5MM solid building waste 50%, clay 5%, construction curing agent 1%;
2) in weight percentage, after the described raw material thing of step 1) mixing and stirring, add water 14%, stir, make the dry cement-earth;
3) with step 2) die trial of packing into of gained dry cement-earth, compacting, the demoulding, maintenance.
Embodiment 7
The application of above-mentioned construction curing agent in chromic slag building block, can implement according to following steps:
1) in weight percentage, getting chromium slag 16%, PO cement 14%, diameter is 4.5MM solid building waste 25%, clay 5%, solidifying agent 4%;
2) in weight percentage, after the described raw material thing of step 1) mixing and stirring, add water 36%, stir, make the dry cement-earth;
3) with step 2) die trial of packing into of gained dry cement-earth, compacting, the demoulding, maintenance.
Claims (3)
1. a construction curing agent is characterized in that, contains: calcium aluminate, silicon-dioxide, ferrous iron class raw material, tourmalinite, solid water glass; Described calcium aluminate, silicon-dioxide, ferrous iron class raw material, tourmalinite and solid water glass are followed successively by in weight percentage: 30～50%, 30～40%, 10～20%, 5～10%, 5%～7%.
2. according to the application of the described construction curing agent of claim 1 in chromic slag building block, it is characterized in that, implement according to following steps:
1) gets chromium slag 10～20%, cement 10～20%, solid building waste 20～50%, clay 5～15%, construction curing agent 1～5%; Each component concentration percentage ratio sum is 100%;
2) with after the described raw material thing of the step 1) mixing and stirring, add water 10～55%, stir, make the dry cement-earth;
3) with step 2) die trial of packing into of gained dry cement-earth, compacting, the demoulding, maintenance.
3. according to the application of the described construction curing agent of claim 2 in chromic slag building block, it is characterized in that: described cement is PO or PS32.5.
4 according to claim 2 or 3 application of described construction curing agent in chromic slag building block, and it is characterized in that: described solid building waste diameter is 4～5MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100100921A CN101016200B (en) | 2007-01-17 | 2007-01-17 | Construction curing agent and application thereof in chromic slag building block |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100100921A CN101016200B (en) | 2007-01-17 | 2007-01-17 | Construction curing agent and application thereof in chromic slag building block |
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| Publication Number | Publication Date |
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| CN101016200A CN101016200A (en) | 2007-08-15 |
| CN101016200B true CN101016200B (en) | 2011-11-02 |
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| CN2007100100921A Expired - Fee Related CN101016200B (en) | 2007-01-17 | 2007-01-17 | Construction curing agent and application thereof in chromic slag building block |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765914B (en) * | 2012-07-13 | 2014-12-17 | 徐庆旭 | Building garbage baking-free brick or building block and preparation method thereof |
| CN107574949A (en) * | 2017-09-15 | 2018-01-12 | 河南工程学院 | It is a kind of that there is fire prevention, the spliced wall body structure of purification function and preparation method |
| CN112645645A (en) * | 2020-10-10 | 2021-04-13 | 上海友品环境服务有限公司 | Formula and process for comprehensive resource utilization of chromium slag |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562510A (en) * | 2004-04-06 | 2005-01-12 | 济南裕兴化工有限责任公司 | Method for harnessing chromium dregs |
| CN1611554A (en) * | 2003-10-28 | 2005-05-04 | 北京立高高新技术研究所 | Multifunctional coating and its preparing method |
| CN1651351A (en) * | 2004-02-04 | 2005-08-10 | 黄宝林 | Nano-functional tile |
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- 2007-01-17 CN CN2007100100921A patent/CN101016200B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611554A (en) * | 2003-10-28 | 2005-05-04 | 北京立高高新技术研究所 | Multifunctional coating and its preparing method |
| CN1651351A (en) * | 2004-02-04 | 2005-08-10 | 黄宝林 | Nano-functional tile |
| CN1562510A (en) * | 2004-04-06 | 2005-01-12 | 济南裕兴化工有限责任公司 | Method for harnessing chromium dregs |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-52339A 2002.02.19 |
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Granted publication date: 20111102 Termination date: 20130117 |