CN101608483A - A kind of phosphogypsum composite autoclaved brick and preparation method thereof - Google Patents
A kind of phosphogypsum composite autoclaved brick and preparation method thereof Download PDFInfo
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- CN101608483A CN101608483A CNA2009101441119A CN200910144111A CN101608483A CN 101608483 A CN101608483 A CN 101608483A CN A2009101441119 A CNA2009101441119 A CN A2009101441119A CN 200910144111 A CN200910144111 A CN 200910144111A CN 101608483 A CN101608483 A CN 101608483A
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- brick
- additive
- building waste
- autoclaved brick
- compacting
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/143—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
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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 a kind of phosphogypsum composite autoclaved brick, its body recipe is (weight content): ardealite: 60%～85%, and building waste: 10%～37%, additive: 1%～8%.Described building waste is a kind of or its mixture of broken common brick, discarded concrete, useless ceramic tile, cullet, and described additive is meant the compound of several groups of raw materials such as natrium citricum, methylcellulose, FDN, quicklime.The invention also discloses the preparation method of phosphogypsum composite autoclaved brick, comprise operations such as fragmentation, ball milling, batching, stirring, ageing, rolling, compacting, steaming pressure.Composite autoclaved brick of the present invention has solid slag ardealite and building waste utilization rate height, utilization is big, production technology is simple, cost is low and the advantage of economic environmental protection, and the brick body satisfies the requirement of national standard to the body of wall load-bearing material.Solid waste such as ardealite and building waste content is turned waste into wealth up to 95% in the prescription, belongs to novel environmental-friendly construction material.
Description
Technical field
The invention belongs to industrial residue application technology as the second resource field, being specifically related to industrial solid residue phosphogypsum, building waste is the main material production building material product, especially relates to a kind of phosphogypsum composite autoclaved brick and preparation method thereof.
Background technology
Protection land resources is important fundamental state policy of China; China's per capita area of cultivated farmland is less than 2/5 of world average level; per capita area of cultivated farmland is 0.09 hectare; and conventional clay production will consume the land resources of a large amount of preciousnesses; aggravation is to the pressure of ecological environment, and has a strong impact on the sustainable development of economic society.Therefore, by eliminating loam brick, the development novel wall material, make full use of industrial solid wastes, building waste, can optimize building materials industry effectively, development " green industry " promotes resource, environment, social development coordinated development, realizes the organic unity of economic benefit, social benefit, ecological benefits.
Ardealite is the industrial residue of chemical engineering industry discharge capacity maximum, as not being used, and land occupation not only, and can cause pollution to environment.Studies show that ardealite can be used as the raw material of the alternative brick (non-burning brick) of loam brick (common brick), have cheap abundant and long-range supply advantage.The ardealite steam-pressing brisk is the substitute of loam brick, applies novel wall material, progressively replaces solid clay brick, is to improve pressing for of resource utilization and protection environment, is that China carries out the land resources protection, realizes the major action of the strategy of sustainable development.Country is just forcing to carry out the environmental protection and energy saving brick, the forbidding loam brick.So-called environmental protection and energy saving brick be exactly raw material be solid waste, preparation process is pollution-free, low energy consumption, the ardealite steam-pressing brisk just arises.
Chinese patent is disclosed, and " " (publication number CN101182179A) uses cement, lime, sand, ardealite to mix natural curing gained after the compression moulding by a certain percentage to baking-free ardealite brick and preparation method thereof.Shortcoming is: this product is a cement products, and appearance poor, green strength are low, and crushing product causes secondary pollution easily.
Chinese patent application CN1915894 discloses " a kind of compound bricks of phosphogypsum and production method thereof ", this composite brick is become by following mixed raw material: steam-cured ardealite: 30-55 part, cementitious material (flyash, zeolite or red mud from sintering process): 10-30 part, curing compound (calcium oxide, magnesia or alumina): 5-15 part, aggregate (rubble of river sand, cast used sand, quarry or slag): 5-37 part, reinforcing agent (cement or polyvinyl alcohol): 1-5 part.The preparation method of this brick mixes stirring with ardealite steam-cured back in steam with other raw materials, adding suitable quantity of water makes the wet basis moisture content be controlled at 12%-20%, compound is at the forming under the pressure of 10-80MPa, and mould brick steam-cured 5-24h in high temperature and high pressure steam obtains finished product.This brick rupture strength and compressive strength are higher, and good frost resistance can be used as bearing wall.Its shortcoming is: the composition of this product is comparatively complicated, cost of material is high, and the consumption of industrial solid wastes ardealite etc. is limited.
Summary of the invention
The present invention has overcome the above-mentioned defective that prior art exists, its objective is problems such as environment pollution that the solid slag ardealite that produces when solving sulfuric acid treating phosphorite and a large amount of building wastes bring, land occupation, a kind of phosphogypsum composite autoclaved brick, this composite autoclaved brick have solid slag ardealite and building waste utilization rate height, utilization is big, production technology is simple, cost is low and the advantage of economic environmental protection and provide.
Another object of the present invention provides the preparation method of phosphogypsum composite autoclaved brick.
For realizing above-mentioned purpose of the present invention, a kind of phosphogypsum composite autoclaved brick of the present invention by the following technical solutions:
A kind of phosphogypsum composite autoclaved brick body recipe of the present invention is (weight content):
Ardealite: 60%～85%;
Building waste: 10%～37%;
Additive: 1%～8%.
Described building waste is a kind of or its mixture of broken common brick, discarded concrete, useless ceramic tile, cullet, and is crushed to granularity≤3mm.
The mud content of described building waste≤3%.
Described additive is meant the compound of several groups of raw materials such as natrium citricum, methylcellulose, FDN, quicklime, and wherein solid additive then need be milled to the granularity of 0.076mm 〉=95% if any bulk.The additive of liquid can directly add water with raw material and mix the stirring use.
The optimum content of described additive is 3%～5%.
Above-mentioned ardealite is the solid slag that produces during with sulfuric acid treating phosphorite, can directly use after depositing.
Each constituent content of described additive (accounting for the idiosome total amount, weight content) is:
Natrium citricum: 0%～0.2%;
Methylcellulose: 0%～0.3%;
FDN：0％～0.3％；
Quicklime: 0%～8%.
Wherein the Main Ingredients and Appearance of FDN is the beta-naphthalenesulfonic-acid formaldehyde full thing that contracts, and is the good non-bleed type high efficiency water reducing agent of concrete work combination property.
The preparation method of a kind of phosphogypsum composite autoclaved brick of the present invention adopts following processing step:
The preparation method of above-mentioned phosphogypsum composite autoclaved brick comprises operations such as fragmentation, ball milling, batching, stirring, ageing, rolling, compacting, steaming pressure, and its concrete production stage is as follows:
(1) fragmentation: the building waste aggregate is crushed to below the granularity 3mm;
(2) ball milling: with the granularity of the solid additive ball milling in the additive to-0.076mm 〉=95%;
(3) batching: various raw materials are prepared by above-mentioned prescription;
(4) stir: in the raw material for preparing, add water, make it full and uniform by stirring in the ratio of raw material gross weight 7%～15%;
(5) ageing: the raw material that stirs enters aging bunker and reacts, and the reaction time is 1～3h;
(6) rolling: the intact laggard road wheel of material ageing grinds, and material density is increased, and plasticity strengthens, and the rolling time is 4～6min;
(7) compacting: material enters the press compacting behind rolling, and compacting pressure is that 15～22MPa is advisable;
(8) steam pressure: steam to press and adopt still kettle to carry out stream curing, curing time is 8～13h, and steaming the pressure temperature is 140 ℃～180 ℃.
Adopt the phosphogypsum composite autoclaved brick of this patent prescription, method preparation, the compressive strength of its brick body reaches 12～19MPa, and rupture strength reaches 2.7～3.2Mpa, brick body water-tolerant, fluorinated volume≤0.3mg/L, radioactive activity satisfies the requirement of national standard to the body of wall load-bearing material than≤0.26.Solid waste such as ardealite and building waste content is up to 95% in the prescription, and changing waste into valuables belongs to novel environmental-friendly construction material.
Compare present prior art, the present invention has following advantage:
(1) ardealite that adopts of phosphogypsum composite autoclaved brick raw material is the solid slag that produces during with sulfuric acid treating phosphorite in phosphoric acid production, aggregate is broken building wastes such as common brick, discarded concrete, useless ceramic tile, the content of the two is a kind of effective ways that typically utilize solid waste loam brick substitute up to 90～95%.And phosphogypsum composite autoclaved brick is pollution-free in the process of preparation, adopts the maintenance of water vapour autoclave method, and energy consumption is low, is a kind of typical environmental protection and energy saving brick.
(2) do not contain cementitious material such as cement in the prescription, do not belong to cement concrete product.
(3) by still kettle stream curing, be 8～13h curing period, do not need the curing period of the 28d of other natural curings.
The specific embodiment
Table 1 is a phosphogypsum composite autoclaved brick body recipe of the present invention (gross weight 100kg).
The additive formulations that table 2 adopts for phosphogypsum composite autoclaved brick of the present invention.
Table 1 phosphogypsum composite autoclaved brick body recipe (gross weight 100kg)
| Sequence number | Ardealite | The building waste aggregate | Additive |
| Prescription 1 | ??60 | ??37 | ??3 |
| Prescription 2 | ??65 | ??30 | ??5 |
| Prescription 3 | ??70 | ??25 | ??5 |
| Prescription 4 | ??75 | ??20 | ??5 |
| Prescription 5 | ??80 | ??15 | ??5 |
| Prescription 6 | ??85 | ??10 | ??5 |
| Prescription 7 | ??84 | ??15 | ??1 |
| Prescription 8 | ??82 | ??10 | ??8 |
The additive formulations that table 2 phosphogypsum composite autoclaved brick adopts
A kind of phosphogypsum composite autoclaved brick of the present invention is made by following method:
(1) raw material is handled: adopt jaw crusher to be crushed to below the 3mm in the building waste aggregate, with the granularity of the solid additive ball milling in the additive to-0.076mm 〉=95%, carry out weighing according to above table by mass ratio more again.
(2) compacting is prepared: load weighted raw material is added 10%, and ageing 2h is placed in the back that stirs, and advances edge runner rolling 5min again.
(3) adobe compacting: the raw material that rolling is good carries out cloth by the cloth system of KD1300, and cloth piece number is 48, suppresses with the 1200t pressure of KD1300 then, automatic demoulding after compacting is finished, and brick-clamping device presss from both sides adobe to connecing on the base machine automatically.
(4) steam pressure.Utilize still kettle that pressure is steamed in the adobe that suppresses, steaming vacuumizes before pressing, and steaming the pressure time is 12h, and steaming the pressure temperature is 150 ℃.
The phosphogypsum composite autoclaved brick of the present invention's development, the utilization rate of solid waste is 90～95%, through KD1300 machinery dress mould high-pressure molding, adopts the steam steam press maintenance.Whole process environmental protection and waste utilization, energy efficient, brick physique amount height, every index detects through experiment and has reached corresponding national standards.
According to the market demand, the grown place phosphogypsum composite autoclaved brick can be solid standard brick, also can be Brick with blind hole or porous brick.
Claims (5)
1. phosphogypsum composite autoclaved brick is characterized in that: its body recipe is (weight content):
Ardealite: 60%～85%;
Building waste: 10%～37%;
Additive: 1%～8%;
Described building waste is a kind of or its mixture of broken common brick, discarded concrete, useless ceramic tile, cullet, and described additive is meant the compound of several groups of raw materials such as natrium citricum, methylcellulose, FDN, quicklime.
2. a kind of phosphogypsum composite autoclaved brick as claimed in claim 1 is characterized in that: the content of additive in its base substrate is 3%～5% (weight).
3. a kind of phosphogypsum composite autoclaved brick as claimed in claim 1 or 2 is characterized in that: each constituent content of described additive (accounting for the idiosome total amount, weight content) is:
Natrium citricum: 0%～0.2%;
Methylcellulose: 0%～0.3%;
FDN：0％～0.3％；
Quicklime: 0%～8%.
4. a kind of phosphogypsum composite autoclaved brick preparation method as claimed in claim 1 or 2 is characterized in that adopting following processing step:
(1) fragmentation: the building waste aggregate is crushed to below the granularity 3mm;
(2) ball milling: with the granularity of the solid additive ball milling in the additive to-0.076mm 〉=95%;
(3) batching: various raw materials are prepared by above-mentioned prescription;
(4) stir: in the raw material for preparing, add water, make it full and uniform by stirring in the ratio of raw material gross weight 7%～15%;
(5) ageing: the raw material that stirs enters aging bunker and reacts, and the reaction time is 1～3h;
(6) rolling: the intact laggard road wheel of material ageing grinds, and material density is increased, and plasticity strengthens, and the rolling time is 4～6min;
(7) compacting: material enters the press compacting behind rolling, and compacting pressure is that 15～22MPa is advisable;
(8) steam pressure: steam to press and adopt still kettle to carry out stream curing, curing time is 8～13h, and steaming the pressure temperature is 140 ℃～180 ℃.
5. a kind of phosphogypsum composite autoclaved brick preparation method as claimed in claim 3 is characterized in that adopting following processing step:
(1) fragmentation: the building waste aggregate is crushed to below the granularity 3mm;
(2) ball milling: with the granularity of the solid additive ball milling in the additive to 0.076mm 〉=95%;
(3) batching: various raw materials are prepared by above-mentioned prescription;
(4) stir: in the raw material for preparing, add water, make it full and uniform by stirring in the ratio of raw material gross weight 7%～15%;
(5) ageing: the raw material that stirs enters aging bunker and reacts, and the reaction time is 1～3h;
(6) rolling: the intact laggard road wheel of material ageing grinds, and material density is increased, and plasticity strengthens, and the rolling time is 4～6min;
(7) compacting: material enters the press compacting behind rolling, and compacting pressure is that 15～22MPa is advisable;
(8) steam pressure: steam to press and adopt still kettle to carry out stream curing, curing time is 8～13h, and steaming the pressure temperature is 140 ℃～180 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101441119A CN101608483B (en) | 2009-07-10 | 2009-07-10 | Phosphogypsum composite autoclaved brick and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101441119A CN101608483B (en) | 2009-07-10 | 2009-07-10 | Phosphogypsum composite autoclaved brick and preparation method thereof |
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| CN101608483B CN101608483B (en) | 2011-08-31 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921098A (en) * | 2010-08-23 | 2010-12-22 | 马鞍山科达机电有限公司 | Environment-friendly, high-intensity and desulfurated plaster wall brick and manufacture method thereof |
| CN102765921A (en) * | 2011-05-06 | 2012-11-07 | 中国科学院过程工程研究所 | Method for preparing waterproof autoclaved brick by utilization of phosphogypsum-cyanide residual tailings |
| CN103755248A (en) * | 2013-12-23 | 2014-04-30 | 北京化工大学 | Ardealite concrete and preparation method thereof |
| CN103922679A (en) * | 2014-04-16 | 2014-07-16 | 浙江浦江江合新型建筑材料有限公司 | Autoclaved sand-lime bricks manufactured by using building waste materials and crystal glass solid waste and manufacturing method thereof |
| RU2538556C1 (en) * | 2013-10-17 | 2015-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Binding agent |
| RU2540706C1 (en) * | 2013-10-18 | 2015-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Binding agent |
| CN105236935A (en) * | 2014-07-09 | 2016-01-13 | 泰盛兴应用材料股份有限公司 | Ceramic tile product and manufacturing method therefor |
| CN107176824A (en) * | 2017-06-20 | 2017-09-19 | 肥西县碧涛建材有限公司 | A kind of environmental protection brick of industrial residue manufacture and preparation method thereof |
| CN109053107A (en) * | 2018-08-23 | 2018-12-21 | 江苏华能墙材有限公司 | A kind of building waste recycling brickmaking technology |
| CN110204284A (en) * | 2019-06-26 | 2019-09-06 | 华新新型建筑材料有限公司 | Aggregate waste residue brickmaking technology |
| CN114315317A (en) * | 2021-12-27 | 2022-04-12 | 宜兴市隆昌耐火材料有限公司 | High-strength alkali-resistant composite brick based on waste recycling and preparation method thereof |
-
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- 2009-07-10 CN CN2009101441119A patent/CN101608483B/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101921098A (en) * | 2010-08-23 | 2010-12-22 | 马鞍山科达机电有限公司 | Environment-friendly, high-intensity and desulfurated plaster wall brick and manufacture method thereof |
| CN102765921A (en) * | 2011-05-06 | 2012-11-07 | 中国科学院过程工程研究所 | Method for preparing waterproof autoclaved brick by utilization of phosphogypsum-cyanide residual tailings |
| RU2538556C1 (en) * | 2013-10-17 | 2015-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Binding agent |
| RU2540706C1 (en) * | 2013-10-18 | 2015-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Binding agent |
| CN103755248A (en) * | 2013-12-23 | 2014-04-30 | 北京化工大学 | Ardealite concrete and preparation method thereof |
| CN103755248B (en) * | 2013-12-23 | 2016-01-20 | 北京化工大学 | A kind of Ardealite concrete and preparation method thereof |
| CN103922679B (en) * | 2014-04-16 | 2016-03-30 | 浙江浦江江合新型建筑材料有限公司 | A kind of autoclaved lime-sand brick utilizing construction waste and crystal glass solid waste to manufacture and preparation method thereof |
| CN103922679A (en) * | 2014-04-16 | 2014-07-16 | 浙江浦江江合新型建筑材料有限公司 | Autoclaved sand-lime bricks manufactured by using building waste materials and crystal glass solid waste and manufacturing method thereof |
| CN105236935A (en) * | 2014-07-09 | 2016-01-13 | 泰盛兴应用材料股份有限公司 | Ceramic tile product and manufacturing method therefor |
| CN107176824A (en) * | 2017-06-20 | 2017-09-19 | 肥西县碧涛建材有限公司 | A kind of environmental protection brick of industrial residue manufacture and preparation method thereof |
| CN109053107A (en) * | 2018-08-23 | 2018-12-21 | 江苏华能墙材有限公司 | A kind of building waste recycling brickmaking technology |
| CN109053107B (en) * | 2018-08-23 | 2021-02-23 | 江苏华能墙材有限公司 | Brick making process by recycling construction waste |
| CN110204284A (en) * | 2019-06-26 | 2019-09-06 | 华新新型建筑材料有限公司 | Aggregate waste residue brickmaking technology |
| CN114315317A (en) * | 2021-12-27 | 2022-04-12 | 宜兴市隆昌耐火材料有限公司 | High-strength alkali-resistant composite brick based on waste recycling and preparation method thereof |
| CN114315317B (en) * | 2021-12-27 | 2022-11-25 | 宜兴市隆昌耐火材料有限公司 | High-strength alkali-resistant composite brick based on waste recycling and preparation method thereof |
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| Publication number | Publication date |
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| CN101608483B (en) | 2011-08-31 |
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