CN108017340A - A kind of magnesite tailings pervious concrete and preparation method thereof - Google Patents
A kind of magnesite tailings pervious concrete and preparation method thereof Download PDFInfo
- Publication number
- CN108017340A CN108017340A CN201711451451.7A CN201711451451A CN108017340A CN 108017340 A CN108017340 A CN 108017340A CN 201711451451 A CN201711451451 A CN 201711451451A CN 108017340 A CN108017340 A CN 108017340A
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- Prior art keywords
- magnesite
- tailings
- cement
- sphere
- pervious concrete
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of magnesite tailings pervious concrete and preparation method thereof.The magnesite tailings pervious concrete, is mainly prepared by the raw material of following mass percent：The magnesite tailings sphere of powder 30% ~ 40%, magnesite barren rock 35% ~ 45%, cement 15% ~ 20%, epoxy resin 3% ~ 9%, basalt fibre 1% ~ 2%.The present invention prepares the aggregate of sphere of powder part replacement pervious concrete using magnesite tailings, magnesite barren rock aggregate is added at the same time, can largely eliminate magnesite tailings and magnesite barren rock, improves resource utilization, reduce magnesite tailings and magnesite barren rock takes up an area, improve environment.Manufactured pervious concrete has the advantages that water permeability is good, intensity is high, cost is low, anti-thawing is good, with good economic efficiency and social benefit.
Description
Technical field
The present invention relates to magnesite tailings recycling field, be specifically a kind of magnesite tailings pervious concrete and its
Preparation method.
Background technology
Traditional pavement structure is spread using fluid-tight ground surface material, i.e. surface layer with basic unit using close material
Build, surface water is difficult to penetrate into roadbed.With the reinforcement of people's environmental consciousness, a variety of drawbacks of traditional waterproof pavement structure
Gradually recognized by people.The earth's surface of modern city is more to be covered by water tight concrete building and road surface, and respiratory, absorb heat
Amount and the ability of infiltration rainwater lack, and bring a series of Urban Environmental Problems.Present developed country all pays much attention to underground water
Supply, road surface is mostly the vegetation road surface alternate with masonry, ensure precipitation can permeate the ground in time.But in China, in city
In city, such a mode is undesirable, preferable it is desirable to invent a kind of water penetration, while the index such as road surface hardness is again new up to target
Type building materials.
Meanwhile with the trade waste bulk deposition such as industrialized development, magnesite tailings, magnesite barren rock, but profit
Not high with rate, bulk deposition has not only occupied the soil of large area, but also the heavy damage to soil reclamation.If can be sharp again
With then meeting the justice in the topic of circular economy.
The research of pervious concrete is prepared using the thinner magnesite tailings of granularity at present, it is not yet reported that.
The content of the invention
It is an object of the invention to provide a kind of magnesite tailings pervious concrete and preparation method thereof, to solve the above-mentioned back of the body
Problem present in scape technology.
The technical proposal of the invention is realized in this way：
A kind of magnesite tailings pervious concrete, is mainly prepared by the raw material of following mass percent：Magnesite tailings powder
Ball 30% ~ 40%, magnesite barren rock 35% ~ 45%, cement 15% ~ 20%, epoxy resin 3% ~ 9%, basalt fibre 1% ~ 2%.
Preferably, magnesite tailings pervious concrete of the present invention, is mainly prepared by the raw material of following mass percent
Form：The magnesite tailings sphere of powder 40%, magnesite barren rock 35%, cement 20%, epoxy resin 3%, basalt fibre 2%.
Preferably, magnesite tailings pervious concrete of the present invention, is mainly prepared by the raw material of following mass percent
Form：The magnesite tailings sphere of powder 35%, magnesite barren rock 40%, cement 18%, epoxy resin 6%, basalt fibre 1%.
Preferably, magnesite tailings pervious concrete of the present invention, is mainly prepared by the raw material of following mass percent
Form：The magnesite tailings sphere of powder 30%, magnesite barren rock 45%, cement 15%, epoxy resin 9%, basalt fibre 1%.
Preferably, the magnesite tailings sphere of powder is prepared by following steps：
A. batch mixing：By magnesite tailings, cement, starch grafted polyacrylamide copolymer, glass fibre water chestnut by weight percent
Magnesium ore deposit tailing 90% ~ 95%, cement 3% ~ 5%, starch grafted polyacrylamide copolymer 1 % ~ 3%, glass fibre 1% ~ 2%, mixing are equal
It is even, obtain mixture；
B. it is molded：By the mixture configured add nodulizer, and add water stirring it is spherical in shape, the additive amount of water is magnesite
Tailing, cement, starch grafted polyacrylamide copolymer, glass fibre gross mass 8% ~ 12%；
C. conserve：It will under field conditions (factors) be conserved 3 days after shaping pellet, obtain the magnesite tailings sphere of powder.
Preferably, the step A magnesite tailings fineness is -0.074mm70% ~ 90%, glass fibre length 1mm ~ 3mm,
Cement model P.O 42.5.
Preferably, the step C magnesite tailings spheres of powder granularity is 3mm ~ 5mm.
The present invention also provides a kind of magnesite tailings pervious concrete preparation method, comprise the following steps：
（1）By the magnesite tailings sphere of powder, magnesite barren rock, cement, epoxy resin, basalt fibre according to mass percent：Water chestnut
The magnesium ore deposit tailing sphere of powder：Magnesite barren rock：Cement：Epoxy resin：Basalt fibre=30% ~ 40%：35%~45%：15%~20%：3%~
9%：1% ~ 2% be added in concrete mixer be uniformly mixed；
（2）The water of mixture quality 5% ~ 7% is added in mixer, is sufficiently stirred 10min-15min；
（3）The water-reducing agent of cement quality 2% ~ 4% is added in mixer again, is sufficiently stirred 1min ~ 2min, obtains magnesite tail
Ore deposit is granulated pervious concrete.
Preferably, the step（1）Magnesite barren rock granularity is 5mm-15mm, basalt fibre length 5mm ~ 10mm, water
Mud model P.O 32.5.
Preferably, the step（3）Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid.
Beneficial effects of the present invention are：
The present invention prepares sphere of powder part using magnesite tailings and substitutes the aggregate of pervious concrete, while adds magnesite barren rock bone
Material, can largely eliminate magnesite tailings and magnesite barren rock, improve resource utilization, reduce magnesite tailings and magnesite gives up
Stone takes up an area, and improves environment.It is excellent that manufactured pervious concrete has that water permeability is good, intensity is high, cost is low, anti-thawing is good etc.
Point, with good economic efficiency and social benefit.
Embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that implement describedly
Example is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without making creative work, belong to the model that the present invention protects
Enclose.
Embodiment 1
Present embodiments provide a kind of magnesite tailings pervious concrete, mainly by following mass percent raw material prepare and
Into：The magnesite tailings sphere of powder 40%, magnesite barren rock 35%, cement 20%, epoxy resin 3%, basalt fibre 2%.
Wherein, the magnesite tailings sphere of powder is prepared by following steps：
A. batch mixing：By magnesite tailings, cement, starch grafted polyacrylamide copolymer, glass fibre water chestnut by weight percent
Magnesium ore deposit tailing 90%, cement 5%, starch grafted polyacrylamide copolymer 3%, glass fibre 2%, are uniformly mixed, obtain mixture,
The magnesite tailings fineness is -0.074mm90%；
B. it is molded：By the mixture configured add nodulizer, and add water stirring it is spherical in shape, the additive amount of water is magnesite
Tailing, cement, starch grafted polyacrylamide copolymer, glass fibre gross mass 8%；
C. conserve：It will under field conditions (factors) be conserved 3 days after shaping pellet, obtain the magnesite tailings sphere of powder.
The magnesite tailings pervious concrete preparation method, comprises the following steps：
（1）By the magnesite tailings sphere of powder, magnesite barren rock, cement, epoxy resin, basalt fibre according to mass percent：Water chestnut
The magnesium ore deposit tailing sphere of powder：Magnesite barren rock：Cement：Epoxy resin：Basalt fibre=40%：35%：20%：3%：2% is added to concrete
It is uniformly mixed in mixer, obtains mixture；
（2）The water of mixture quality 7% is added in mixer, is sufficiently stirred 15min；
（3）The water-reducing agent of cement quality 4% is added in mixer again, is sufficiently stirred 2min, magnesite tailings is obtained and is granulated thoroughly
Water coagulation soil.
Obtained magnesite tailings pervious concrete porosity 30.15%, coefficient of permeability 0.035cm/s, compression strength
35.85MPa, compression strength is 30.27MPa after 25 Frozen-thawed cycleds.
Embodiment 2
Present embodiments provide a kind of magnesite tailings pervious concrete, mainly by following mass percent raw material prepare and
Into：The magnesite tailings sphere of powder 35%, magnesite barren rock 40%, cement 18%, epoxy resin 6%, basalt fibre 1%.
Wherein, the magnesite tailings sphere of powder is prepared by following steps：
A. batch mixing：By magnesite tailings, cement, starch grafted polyacrylamide copolymer, glass fibre water chestnut by weight percent
Magnesium ore deposit tailing 93%, cement 4%, starch grafted polyacrylamide copolymer 2%, glass fibre 1%, are uniformly mixed, obtain mixture,
The magnesite tailings fineness is -0.074mm80%；
B. it is molded：By the mixture configured add nodulizer, and add water stirring it is spherical in shape, the additive amount of water is magnesite
Tailing, cement, starch grafted polyacrylamide copolymer, glass fibre gross mass 10%；
C. conserve：It will under field conditions (factors) be conserved 3 days after shaping pellet, obtain the magnesite tailings sphere of powder.
The magnesite tailings pervious concrete preparation method, comprises the following steps：
（1）By the magnesite tailings sphere of powder, magnesite barren rock, cement, epoxy resin, basalt fibre according to mass percent：Water chestnut
The magnesium ore deposit tailing sphere of powder：Magnesite barren rock：Cement：Epoxy resin：Basalt fibre=35%：40%：18%：6%：1% is added to concrete
It is uniformly mixed in mixer, obtains mixture；
（2）The water of mixture quality 6% is added in mixer, is sufficiently stirred 12min；
（3）The water-reducing agent of cement quality 3% is added in mixer again, is sufficiently stirred 1.5min, obtains magnesite tailings granulation
Pervious concrete.
Obtained magnesite tailings pervious concrete porosity 29.86%, coefficient of permeability 0.034cm/s, compression strength
36.55MPa, compression strength is 30.68MPa after 25 Frozen-thawed cycleds.
Embodiment 3
Present embodiments provide a kind of magnesite tailings pervious concrete, mainly by following mass percent raw material prepare and
Into：The magnesite tailings sphere of powder 30%, magnesite barren rock 45%, cement 15%, epoxy resin 9%, basalt fibre 1%.
Wherein, the magnesite tailings sphere of powder is prepared by following steps：
A. batch mixing：By magnesite tailings, cement, starch grafted polyacrylamide copolymer, glass fibre water chestnut by weight percent
Magnesium ore deposit tailing 95%, cement 3%, starch grafted polyacrylamide copolymer 1 %, glass fibre 1%, are uniformly mixed, obtain mixture,
The magnesite tailings fineness is -0.074mm70%；
B. it is molded：By the mixture configured add nodulizer, and add water stirring it is spherical in shape, the additive amount of water is magnesite
Tailing, cement, starch grafted polyacrylamide copolymer, glass fibre gross mass 12%；
C. conserve：It will under field conditions (factors) be conserved 3 days after shaping pellet, obtain the magnesite tailings sphere of powder.
The magnesite tailings pervious concrete preparation method, comprises the following steps：
（1）By the magnesite tailings sphere of powder, magnesite barren rock, cement, epoxy resin, basalt fibre according to mass percent：Water chestnut
The magnesium ore deposit tailing sphere of powder：Magnesite barren rock：Cement：Epoxy resin：Basalt fibre=30%：45%：15%：9%：1% is added to concrete
It is uniformly mixed in mixer, obtains mixture；
（2）The water of mixture quality 5% is added in mixer, is sufficiently stirred 10min；
（3）The water-reducing agent of cement quality 2% is added in mixer again, is sufficiently stirred 1min, magnesite tailings is obtained and is granulated thoroughly
Water coagulation soil.
Obtained magnesite tailings pervious concrete porosity 29.21%, coefficient of permeability 0.033cm/s, compression strength
37.20MPa, compression strength is 31.29MPa after 25 Frozen-thawed cycleds.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of magnesite tailings pervious concrete, is mainly prepared by the raw material of following mass percent：Magnesite tailings
The sphere of powder 30% ~ 40%, magnesite barren rock 35% ~ 45%, cement 15% ~ 20%, epoxy resin 3% ~ 9%, basalt fibre 1% ~ 2%.
2. magnesite tailings pervious concrete according to claim 1, is mainly prepared by the raw material of following mass percent
Form：The magnesite tailings sphere of powder 40%, magnesite barren rock 35%, cement 20%, epoxy resin 3%, basalt fibre 2%.
3. magnesite tailings pervious concrete according to claim 1, is mainly prepared by the raw material of following mass percent
Form：The magnesite tailings sphere of powder 35%, magnesite barren rock 40%, cement 18%, epoxy resin 6%, basalt fibre 1%.
4. magnesite tailings pervious concrete according to claim 1, is mainly prepared by the raw material of following mass percent
Form：The magnesite tailings sphere of powder 30%, magnesite barren rock 45%, cement 15%, epoxy resin 9%, basalt fibre 1%.
5. the magnesite tailings pervious concrete according to any one of claim 1-4, it is characterised in that：The magnesite
The tailing sphere of powder is prepared by following steps：
A. batch mixing：By magnesite tailings, cement, starch grafted polyacrylamide copolymer, glass fibre water chestnut by weight percent
Magnesium ore deposit tailing 90% ~ 95%, cement 3% ~ 5%, starch grafted polyacrylamide copolymer 1 % ~ 3%, glass fibre 1% ~ 2%, mixing are equal
It is even, obtain mixture；
B. it is molded：By the mixture configured add nodulizer, and add water stirring it is spherical in shape, the additive amount of water is magnesite
Tailing, cement, starch grafted polyacrylamide copolymer, glass fibre gross mass 8% ~ 12%；
C. conserve：It will under field conditions (factors) be conserved 3 days after shaping pellet, obtain the magnesite tailings sphere of powder.
6. the preparation method of the magnesite tailings sphere of powder according to claim 5, it is characterised in that：The step A magnesite
Tailing fineness is -0.074mm70% ~ 90%, glass fibre length 1mm ~ 3mm, cement model P.O 42.5.
7. the preparation method of the magnesite tailings sphere of powder according to claim 5, it is characterised in that：The step C magnesite
Mine tailing spherolite degree is 3mm ~ 5mm.
8. a kind of magnesite tailings pervious concrete preparation method, comprises the following steps：
（1）By the magnesite tailings sphere of powder, magnesite barren rock, cement, epoxy resin, basalt fibre according to mass percent：Water chestnut
The magnesium ore deposit tailing sphere of powder：Magnesite barren rock：Cement：Epoxy resin：Basalt fibre=30% ~ 40%：35%~45%：15%~20%：3%~
9%：1% ~ 2% be added in concrete mixer be uniformly mixed；
（2）The water of mixture quality 5% ~ 7% is added in mixer, is sufficiently stirred 10min-15min；
（3）The water-reducing agent of cement quality 2% ~ 4% is added in mixer again, is sufficiently stirred 1min ~ 2min, obtains magnesite tail
Ore deposit is granulated pervious concrete.
A kind of 9. magnesite tailings pervious concrete preparation method according to claim 8, it is characterised in that：The step
Suddenly（1）Magnesite barren rock granularity is 5mm-15mm, basalt fibre length 5mm ~ 10mm, cement model P.O 32.5.
A kind of 10. magnesite tailings pervious concrete preparation method according to claim 8, it is characterised in that：The step
Suddenly（3）Water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711451451.7A CN108017340A (en) | 2017-12-27 | 2017-12-27 | A kind of magnesite tailings pervious concrete and preparation method thereof |
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| CN201711451451.7A CN108017340A (en) | 2017-12-27 | 2017-12-27 | A kind of magnesite tailings pervious concrete and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115432966A (en) * | 2022-08-15 | 2022-12-06 | 东莞市斯博锐高分子建筑材料科技有限公司 | Pervious concrete and preparation method thereof |
| CN117886532A (en) * | 2024-01-16 | 2024-04-16 | 辽宁科技大学 | Magnesite waste rock and magnesite tailing semi-rigid pavement base material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747108A (en) * | 2016-12-30 | 2017-05-31 | 安徽华普环境修复材料科技有限公司 | A kind of high intensity pervious concrete brick |
| CN107141009A (en) * | 2017-05-08 | 2017-09-08 | 北京科技大学 | A kind of ceramic water-permeable brick preparation method of use prilling |
-
2017
- 2017-12-27 CN CN201711451451.7A patent/CN108017340A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747108A (en) * | 2016-12-30 | 2017-05-31 | 安徽华普环境修复材料科技有限公司 | A kind of high intensity pervious concrete brick |
| CN107141009A (en) * | 2017-05-08 | 2017-09-08 | 北京科技大学 | A kind of ceramic water-permeable brick preparation method of use prilling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115432966A (en) * | 2022-08-15 | 2022-12-06 | 东莞市斯博锐高分子建筑材料科技有限公司 | Pervious concrete and preparation method thereof |
| CN115432966B (en) * | 2022-08-15 | 2024-05-14 | 东莞市斯博锐高分子建筑材料科技有限公司 | Permeable concrete and preparation method thereof |
| CN117886532A (en) * | 2024-01-16 | 2024-04-16 | 辽宁科技大学 | Magnesite waste rock and magnesite tailing semi-rigid pavement base material and preparation method and application thereof |
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