CN102785285A - Preparation method of alkali-efflorescence-resistant and fading-resistant colorful steel slag pavior brick - Google Patents
Preparation method of alkali-efflorescence-resistant and fading-resistant colorful steel slag pavior brick Download PDFInfo
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- CN102785285A CN102785285A CN2012103069870A CN201210306987A CN102785285A CN 102785285 A CN102785285 A CN 102785285A CN 2012103069870 A CN2012103069870 A CN 2012103069870A CN 201210306987 A CN201210306987 A CN 201210306987A CN 102785285 A CN102785285 A CN 102785285A
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Abstract
The invention discloses a preparation method of an alkali-efflorescence-resistant and fading-resistant colorful steel slag pavior brick. The preparation method comprises the following steps of: mixing steel slag sand, cement and a broken stone according to a proportion, adding water and stirring; mixing and stirring pigment, an alkali- efflorescence resistant agent and the cement, mixing the mixture, the steel slag sand and quartz sand, adding water and stirring; arranging a bottom material layer mixing material at the bottom of a mold, arranging a surface material layer mixing material on the bottom material layer mixing material;and pressing and molding at a normal temperature by a molding machine, wherein the mass ratio of the bottom material layer mixing material to the surface material layer mixing material is 5:1 to 3: 1; an exciting force of the molding machine ranges from 100 to 110 KN; and the molding time of the molding machine ranges from 20 to 25 s. The pavior brick produced by the preparation method provided by the invention is molded at the normal temperature, an organization structure is compact, active substances after molding are reduced, so that an the alkali efflorescence phenomenon of the pavior brick can be effectively restrained, at the same time, basic performances of a product, such as strength and water permeability are not changed.
Description
Technical field
The invention belongs to building material field, be specifically related to the preparation method of a kind of anti-accumulation of salt in the surface soil and the colored slag pavior brick that fades.
Background technology
The slag pavior brick is to be main thick, fine aggregate with the slag; Suitably be equipped with natural sand, stone and special gathering materials; And be main Binder Materials with cement and slag micro powder etc.; Process through technologies such as batching, stirring, vibration, extrusion formings, be used to lay piece, plate of concrete road surface and the ground surface works in pavement, driveway, square, warehouse etc. etc.
When producing colored slag pavior brick, on painted, there are many problems.After the pavior brick moulding, in order to ensure the intensity of cement products, water seasoning on cement products often, at this moment cement products whiting, scum can appear, phenomenon such as fade, cause product not sell when serious or occur the claim dispute often.
Cement in the slag pavior brick, its main component has tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetra calcium aluminoferrite, and a spot of free calcium oxide behind the hydration reaction, has formed hard solid solution.Required water yield during hydrated reaction of cement; In aquation, consume a part; Another part can evaporate; At this moment aqua calcis is evaporated to product surface along the pore of goods, runs into carbon dioxide in air gas and can generate insoluble white calcium carbonate material, is deposited on the slag pavior brick surface.The slag pavior brick all the secondary accumulation of salt in the surface soil can occur if run into rainfall, people for water, dense fog, goods are stacked the mode mistake etc. between curing period.
Mainly gathering materials of slag pavior brick is the slag molding sand; The slag molding sand is the slag that discharges in the high-temperature smelting process, through special the gathering materials after the processing, contains a large amount of free calcium oxides; It is the main source that forms calcium hydroxide; With the calcium hydroxide acting in conjunction in the cement, cause the pavior brick goods to show accumulation of salt in the surface soil phenomenon, and with the phenomenon of fading.
When producing the slag pavior brick, select some not fugitive color, consistent, the easy pigment that disperse of color and luster, be to guarantee the non-fading key factor of goods.Through in surface layer raw material stirring process, adding anti-accumulation of salt in the surface soil agent, produce anti-accumulation of salt in the surface soil material, stop up the pore on top layer, prevent the accumulation of salt in the surface soil, fade, the selection of therefore anti-accumulation of salt in the surface soil agent is also very important.
Summary of the invention
The object of the invention is effectively to utilize the useless admittedly resource of slag of iron and steel enterprise, produces a kind of colored slag pavior brick, and when satisfying the pavior brick key property, the phenomenon of improving brick efflorescence, the accumulation of salt in the surface soil and fading, outward appearance meet the requirement of engineering design.
For realizing the foregoing invention purpose, the technical scheme that the present invention adopts is following:
The preparation method of a kind of anti-accumulation of salt in the surface soil and the colored slag pavior brick that fades may further comprise the steps:
(1) substrate layer compound preparation: slag molding sand, cement and rubble are mixed in proportion, add water and stir;
(2) facestock layer compound preparation: pigment, anti-accumulation of salt in the surface soil agent and cement are mixed, mix with slag molding sand and quartz sand again, add water and stir;
(3) pavior brick moulding: the substrate layer compound places mold bottom, and the facestock layer compound places on the substrate layer compound, and the mass ratio of substrate layer compound and facestock layer compound is 5:1-3:1; Use make-up machine extrusion forming at normal temperatures, exciting force 100-110KN, molding time 20-25s.
The mass ratio of cement, slag molding sand, rubble and water is in the step (1): 1:1-2:2.5-3.5:0.2-0.4, slag molding sand preferred BPN50 slag molding sand and BPN100 slag molding sand.
The mass ratio of cement, slag molding sand, quartz sand, pigment, anti-accumulation of salt in the surface soil agent and water is in the step (2): 1:1.5-2.5:1.5-2.5:0.03-0.05:0.004-0.006:0.2-0.4, the preferred BPN25 slag of slag molding sand molding sand.
Described anti-accumulation of salt in the surface soil agent, its odium stearate (C
18H
35NaO
2) composition is greater than 98wt%, free acid is less than 0.5wt%, and moisture is less than 1.5wt%, and it is Powdered to be white in color, and fineness is 99% through 200 eye mesh screens.
Described ballast grain sizes is at 5-15mm, and crush values is less than 16.
Above-mentioned anti-accumulation of salt in the surface soil agent is applied to slag pavior brick facestock layer, can plays dispersed color, sealing surface layer pore, prevent the effect of the accumulation of salt in the surface soil.Said substrate layer is positioned under the facestock layer, and being generally grey does not have the color requirement, does not contain pigment, need not the anti-accumulation of salt in the surface soil and handles.
Slag pavior brick of the present invention is compared the prevailing roadway brick: at the normal temperature condition compacted under, do not need sintering, can use metallurgical solid refuse slag in a large number; Substitute natural rubble and quartz sand and produce pavior brick; Energy-conserving and environment-protective reduce production costs, and have tangible society, economy and environmental benefit; Indexs such as its resistance to compression, water penetration all can satisfy the specification requirement of " pavior brick ", have better wear resistance; The phenomenon of effectively alleviating the whiting of slag pavior brick surface layer, the accumulation of salt in the surface soil and fading.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1: preparation comprises the colored slag pavior brick of substrate layer and facestock layer
(1) 150kg BPN50 slag molding sand, 100kg BPN100 slag molding sand, 570kg rubble and 180kg cement are added mixer, form the substrate layer raw material of slag pavior brick, add the water of 60kg, fully stir, process the substrate layer compound;
(2) anti-accumulation of salt in the surface soil agent and the 24.25kg cement of the pigment of weighing 0.75kg, 0.12kg; In dry powder mixes model machine, fully mix, weighing 50kgBPN25 slag molding sand and 25kg quartz sand then add mixer with before aggregate sample; The facestock layer raw material of forming the slag pavior brick; Add the water of 7.5kg, fully stir, process the facestock layer compound; Free acid is less than 0.5% in the said anti-accumulation of salt in the surface soil agent, and moisture is less than 1.5%, odium stearate (C
18H
35NaO
2) composition is greater than 98%, white powder, fineness are 99% through 200 eye mesh screens;
(3) mass ratio according to facestock layer compound and substrate layer compound is that 1:5 places mold bottom with the substrate layer compound, with the facestock layer mixture laying on the substrate layer compound;
(4) use make-up machine extrusion forming, exciting force 110KN, molding time 20s;
(5) after moulding finished, the brick body placed on the supporting plate, was transported to the fog room maintenance by chain transport machine.
Made slag pavior brick, compression strength reaches 38.5Mpa, mill hole length 20mm, the freezing-thawing strength damage 7.8%, coefficient of permeability 4.0*10
-2Cm/s, and the whiting that occurs behind slag and the hydrated cementitious, accumulation of salt in the surface soil phenomenon obviously reduce with respect to the prevailing roadway brick.
Embodiment 2: preparation comprises the colored slag pavior brick of substrate layer and facestock layer
(1) 160kg BPN50 slag molding sand, 200kg BPN100 slag molding sand, 450kg rubble and 180kg cement are added mixer, form the substrate layer raw material of slag pavior brick, add the water of 65kg, fully stir, process the substrate layer compound;
(2) anti-accumulation of salt in the surface soil agent and the 25kg cement of the pigment of weighing 0.85kg, 0.125kg; In dry powder mixes model machine, fully mix, weighing 50kgBPN25 slag molding sand and 37.5kg quartz sand then add mixer with before aggregate sample; The facestock layer raw material of forming the slag pavior brick; Add the water of 7.5kg, fully stir, process the facestock layer compound; Free acid is less than 0.5% in the said anti-accumulation of salt in the surface soil agent, and moisture is less than 1.5%, odium stearate (C
18H
35NaO
2) composition is greater than 98%, white powder, fineness are 99% through 200 eye mesh screens;
(3) mass ratio according to facestock layer compound and substrate layer compound is that 1:5 places mold bottom with the substrate layer compound, with the facestock layer mixture laying on the substrate layer compound;
(4) use make-up machine extrusion forming, exciting force 110KN, molding time 20s;
(5) after moulding finished, the brick body placed on the supporting plate, was transported to the fog room maintenance by chain transport machine.
Made slag pavior brick, compression strength reaches 39.2Mpa, mill hole length 23mm, the freezing-thawing strength damage 8.0%, coefficient of permeability 3.8*10
-2Cm/s, and the whiting that occurs behind slag and the hydrated cementitious, accumulation of salt in the surface soil phenomenon obviously reduce with respect to the prevailing roadway brick.
Embodiment 3: preparation comprises the colored slag pavior brick of substrate layer and facestock layer
(1) 150kg BPN50 slag molding sand, 300kg BPN100 slag molding sand, 270kg rubble and 180kg cement are added mixer, form the substrate layer raw material of slag pavior brick, add the water of 68kg, fully stir, process the substrate layer compound;
(2) anti-accumulation of salt in the surface soil agent and the 25kg cement of the pigment of weighing 1kg, 0.14kg; In dry powder mixes model machine, fully mix, weighing 50kgBPN25 slag molding sand and 50kg quartz sand then add mixer with before aggregate sample; The facestock layer raw material of forming the slag pavior brick; Add the water of 7.5kg, fully stir, process the facestock layer compound; Free acid is less than 0.5% in the said anti-accumulation of salt in the surface soil agent, and moisture is less than 1.5%, odium stearate (C
18H
35NaO
2) composition is greater than 98%, white powder, fineness are 99% through 200 eye mesh screens;
(3) mass ratio according to facestock layer compound and substrate layer compound is that 1:5 places mold bottom with the substrate layer compound, with the facestock layer mixture laying on the substrate layer compound;
(4) use make-up machine extrusion forming, exciting force 110KN, molding time 20s;
(5) after moulding finished, the brick body placed on the supporting plate, was transported to the fog room maintenance by chain transport machine.
Made slag pavior brick, compression strength reaches 37.8Mpa, mill hole length 21mm, the freezing-thawing strength damage 8.0%, coefficient of permeability 4.4*10
-2Cm/s, and the whiting that occurs behind slag and the hydrated cementitious, accumulation of salt in the surface soil phenomenon obviously reduce with respect to the prevailing roadway brick.
The foregoing description is interpreted as only being used to the present invention is described and is not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can do various changes or modification to the present invention, and these equivalences change and modify and fall into claim of the present invention institute restricted portion equally.
Claims (7)
1. the preparation method of the anti-accumulation of salt in the surface soil and the colored slag pavior brick that fades is characterized in that, may further comprise the steps:
(1) substrate layer compound preparation: slag molding sand, cement and rubble are mixed in proportion, add water and stir;
(2) facestock layer compound preparation: pigment, anti-accumulation of salt in the surface soil agent and cement are mixed, mix with slag molding sand and quartz sand again, add water and stir;
(3) pavior brick moulding: the substrate layer compound places mold bottom, and the facestock layer compound places on the substrate layer compound, and the mass ratio of substrate layer compound and facestock layer compound is 5:1-3:1; Use make-up machine extrusion forming at normal temperatures, exciting force 100-110KN, molding time 20-25s.
2. the preparation method of the described anti-accumulation of salt in the surface soil of claim 1 and the colored slag pavior brick that fades is characterized in that the mass ratio of cement, slag molding sand, rubble and water is in the step (1): 1:1-2:2.5-3.5:0.2-0.4.
3. the preparation method of the described anti-accumulation of salt in the surface soil of claim 2 and the colored slag pavior brick that fades is characterized in that the slag molding sand is BPN50 slag molding sand and BPN100 slag molding sand.
4. the preparation method of the described anti-accumulation of salt in the surface soil of claim 1 and the colored slag pavior brick that fades; It is characterized in that the mass ratio of cement, slag molding sand, quartz sand, pigment, anti-accumulation of salt in the surface soil agent and water is in the step (2): 1:1.5-2.5:1.5-2.5:0.03-0.05:0.004-0.006:0.2-0.4.
5. the preparation method of the described anti-accumulation of salt in the surface soil of claim 4 and the colored slag pavior brick that fades is characterized in that the slag molding sand is a BPN25 slag molding sand.
6. the preparation method of the described anti-accumulation of salt in the surface soil of claim 1 and the colored slag pavior brick that fades is characterized in that described anti-accumulation of salt in the surface soil agent; Its odium stearate composition is greater than 98wt%, and free acid is less than 0.5wt%, and moisture is less than 1.5wt%; It is Powdered to be white in color, and fineness is 99% through 200 eye mesh screens.
7. the preparation method of the described anti-accumulation of salt in the surface soil of claim 1 and the colored slag pavior brick that fades is characterized in that described ballast grain sizes is at 5-15mm, and crush values is less than 16.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341136A (en) * | 2014-10-16 | 2015-02-11 | 内江市恒世达建材有限公司 | Concrete pavior brick facing material with water permeability |
| CN107117880A (en) * | 2017-06-03 | 2017-09-01 | 合肥慧林建材有限公司 | A kind of colored slag pavior brick and preparation method thereof |
| CN107162533A (en) * | 2017-07-12 | 2017-09-15 | 合肥雅克丽新型建材有限公司 | Anti-seepage pressure-resistant light ecological brick for building and preparation method thereof |
| CN109437783A (en) * | 2018-12-04 | 2019-03-08 | 上海中冶环境工程科技有限公司 | A kind of steel slag porous pavement product and preparation method thereof |
| CN109557287A (en) * | 2018-11-16 | 2019-04-02 | 天津大学 | A method of test pavement brick alkali burnout resistance |
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| CN102190454A (en) * | 2010-03-12 | 2011-09-21 | 中国科学院金属研究所 | Doped all organic corrosion inhibitor for steel bar in concrete |
| CN102383502A (en) * | 2011-10-19 | 2012-03-21 | 谢文靖 | Composite light fireproof insulation board and production method thereof |
| CN102518017A (en) * | 2011-12-23 | 2012-06-27 | 上海宝田新型建材有限公司 | Steel slag ecological water-permeable pavement brick and production method thereof |
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Patent Citations (4)
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| CN102190454A (en) * | 2010-03-12 | 2011-09-21 | 中国科学院金属研究所 | Doped all organic corrosion inhibitor for steel bar in concrete |
| CN102383502A (en) * | 2011-10-19 | 2012-03-21 | 谢文靖 | Composite light fireproof insulation board and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341136A (en) * | 2014-10-16 | 2015-02-11 | 内江市恒世达建材有限公司 | Concrete pavior brick facing material with water permeability |
| CN107117880A (en) * | 2017-06-03 | 2017-09-01 | 合肥慧林建材有限公司 | A kind of colored slag pavior brick and preparation method thereof |
| CN107162533A (en) * | 2017-07-12 | 2017-09-15 | 合肥雅克丽新型建材有限公司 | Anti-seepage pressure-resistant light ecological brick for building and preparation method thereof |
| CN109557287A (en) * | 2018-11-16 | 2019-04-02 | 天津大学 | A method of test pavement brick alkali burnout resistance |
| CN109437783A (en) * | 2018-12-04 | 2019-03-08 | 上海中冶环境工程科技有限公司 | A kind of steel slag porous pavement product and preparation method thereof |
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| CN102785285B (en) | 2015-03-18 |
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Effective date of registration: 20190903 Address after: 524072 Room 107, 108, 109, 110 and 111, Building 12, East District, Baosteel Zhanjiang Iron and Steel Co., Ltd., Dongjian Town, Zhanjiang Economic and Technological Development Zone, Zhanjiang City, Guangdong Province Patentee after: Zhanjiang Baosteel new type building material science and Technology Co Ltd Address before: 201900 Shanghai city Baoshan District Yun Chuan Road No. 5075 Patentee before: Shanghai Baotian Novel Building Materials Co., Ltd. |
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Address after: 524000 rooms 107, 108, 109, 110 and 111, building 12, east area, Baosteel Zhanjiang iron and Steel Co., Ltd., Dongjian Town, Zhanjiang Economic and Technological Development Zone, Zhanjiang City, Guangdong Province Patentee after: Baowu huanke (Zhanjiang) Resources Recycling Co.,Ltd. Address before: 524072 rooms 107, 108, 109, 110 and 111, building 12, east area of Baosteel Zhanjiang iron and Steel Co., Ltd., Dongjian Town, Zhanjiang Economic and Technological Development Zone, Zhanjiang City, Guangdong Province Patentee before: ZHANJIANG BAOSTEEL NEW BUILDING MATERIALS TECHNOLOGY CO.,LTD. |