CN106630842A - Colored flexible pervious concrete, preparation method and application thereof - Google Patents
Colored flexible pervious concrete, preparation method and application thereof Download PDFInfo
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- CN106630842A CN106630842A CN201611230268.XA CN201611230268A CN106630842A CN 106630842 A CN106630842 A CN 106630842A CN 201611230268 A CN201611230268 A CN 201611230268A CN 106630842 A CN106630842 A CN 106630842A
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- concrete
- colored
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- permeability flexible
- flexible concrete
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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
- C04B28/02—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
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
-
- 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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
Abstract
The invention aims at solving the technical problem that tailings cannot be reused, and provides colored flexible pervious concrete, a preparation method and application thereof, belonging to the technical field of materials for road use and decoration. The concrete is prepared from the following components in percentage by weight: 10-20wt% of cement, 55-67wt% of coarse aggregate, 10-18wt% of chlorite powder, 0.4-0.6wt% of a cementing agent, 0.2-0.4wt% of a water reducing agent, 0.15-0.20wt% of pigment and 4-7wt% of water. The concrete uses broken stones, magnesite tailings and chlorite iron tailings powder as aggregates of the concrete, thereby recovering a great deal of mineral resources, improving the utilization ratio of mineral resources and effectively relieving the ecological environment problems caused by tailings stockpile; the concrete can be used for solving the problems of hardening of urban land surfaces and restoration of vegetation, wet lands and rivulets by virtue of basic properties of the concrete such as high hardness and perviousness; and the concrete is favorable for conservation of moisture in soil and water.
Description
Technical field
The invention belongs to Load materials, decorative materials technology, and in particular to a kind of colored permeability flexible concrete and
Preparation Method And The Use.
Background technology
As Urbanization Construction is quickly propelled, various places urban waterlogging event takes place frequently, and causes seriously to people's lives and properties
Injury and a large amount of losses, have a strong impact on city productive life.Most cities are subjected to waterlogging during large-scale heavy showers,
Cause urban road interruption, traffic paralysis, the serious the condition of a disaster such as house is flooded, the common people are stranded.In fact, " meeting rain flooded, city
See sea " it is problem that most city is all faced with for a long time.Traditional cement pavement, bituminous paving, rainwater can not be saved,
But after using some ecological permeable materials, such case will thoroughly change.In the past, the cement road for showing slightly narrow is passed through and overhauled,
Colorful water permeable concrete pavement is changed.Road surface employs ecological permeable material, by gap, rain penetration to stratum, while
Road of being gone slowly to ground with dank material as far as possible is transformed, and Public Parking is transformed into hollow out road surface, is played and is disobeyed
Bad subsoil drain, the effect for pinning rainwater using greenery patches to greatest extent, thoroughly change situation about cannot save in the past.
Additionally, mill tailings is stacked to recycle making a big impact to China's environment.Only Chinese Anshan Area is annual
Discharge chlorite iron tailings is close 40,000,000 tons, and accumulative volume of cargo in storage has reached more than 600,000,000 tons, due to the impact of the market demand, often
Year is also with 15,000,000 tons or so of quantity in discharge.And the consumption that this area is used for every year the aspects such as building materials is 124.5 ten thousand tons.
Therefore row is uneven with consumption, cause a large amount of occupations of land, the powder of the ore deposit to see also wind and fly upward, and then pollute environment.
Therefore, it is necessary to rationally be utilized to mine tailing.
The content of the invention
The technical problem to be solved in the present invention is to solve the problems, such as that mine tailing cannot be recycled, there is provided a kind of colored soft
Property pervious concrete and its production and use.Colored permeability flexible concrete prepared by the present invention, with rubble, magnesite tail
Ore deposit and chlorite iron tailings powder not only can reclaim a large amount of mineral resources as the aggregate of concrete, improve mineral resource utilization
Rate, effectively alleviates the ecological environment problem that brings of tailings impoundment, and can using the fundamental property such as its hardness is high, permeable,
Urban surface hardening is solved, the reparation in vegetation, wetland, streams etc. is solved the problems, such as, beneficial to water and soil moisturizing.
One of technical solution of the present invention is：
A kind of colored permeability flexible concrete, is made up of the component of following weight portion：
Cement：10～20wt%；Coarse aggregate：55～67wt%；Green mud stone flour：10～18wt%；Cementing agent：0.4～
0.6wt%；Water reducer：0.2～0.4wt%；Pigment：0.15～0.20wt%；Water：4～7wt%.
Above-mentioned concrete, the cement be Portland cement, including P.O32.5R, 42.5,42.5R, 52.5,
52.5R。
Above-mentioned concrete, described coarse aggregate is rubble or the one kind in magnesite tailings or two kinds.
Above-mentioned concrete, the scope of the materials weight ratio of different-grain diameter is (3～5mm) in the coarse aggregate：(5～8mm)
=1: 1～1: 3.
Above-mentioned concrete, the apparent density >=2500kg/m of the coarse aggregate3, tight packing density >=1350kg/m3, heap
Long-pending voidage≤47.0%, crush index≤15%.
Above-mentioned concrete, used as fine aggregate, particle size range is in 0.5～1mm for described green mud stone flour；The green mud stone flour is
Iron tailings.
Above-mentioned concrete, the cementing agent for concrete inorganic cementing agent.
Above-mentioned concrete, described water reducer is naphthalene water reducer, and water-reducing rate is 18～22%.
Above-mentioned concrete, described pigment is civil engineering soluble inorganic pigment, and its rich color is bright-colored,
Strong coloring force, stirs after being molded with aggregate, and fugitive color, can not greatly reduce the materials cost of pigment.
Above-mentioned concrete, the water is running water.
The colored permeability flexible concrete has following performance indications：
Wearability (mill hole length)：≤35mm；
Coefficient of permeability：≥0.50mm/s；
Frost resistance (compression strength loss rate after 25 Frozen-thawed cycleds)：≤ 20%, (mass loss after 25 Frozen-thawed cycleds
Rate)：≤ 5%；
Voidage：11%～17%；
Compression strength：C20 28d compression strength >=20.0MPa；C30 28d compression strength >=30.0MPa；
Flexural tensile strength：C20 28d flexural tensile strengths >=2.5MPa；C30 28d flexural tensile strengths >=3.5MPa.
The two of technical solution of the present invention are：
A kind of preparation method of colored permeability flexible concrete, comprises the following steps：
(1) using above-mentioned proportioning, coarse aggregate and the green mud stone flour as fine aggregate are taken, is well mixed；
(2) add cement, cementing agent, water reducer, pigment to stir；
(3) water is added in mixed siccative, makes the concrete of dry；
(4) raw material being well mixed is fitted into mould plug and pound, vibrating forming, Jing room temperature environment maintenance after the demoulding be obtained coloured silk
Color permeability flexible concrete.
In above-mentioned preparation method, the method for the vibrating forming is flat board vibrating forming method.
The three of technical solution of the present invention are：
A kind of purposes of colored permeability flexible concrete, the colored permeability flexible concrete is in garden landscape, park, degree
The places for sightseeing such as false village are used as permeable, draining road surface.
The invention has the advantages that：
1st, concrete of the invention can protect underground water as water-permeable pavement by permeating.During heavy rain and rain
Afterwards, the road surface of pervious concrete laying can control water by the dispersion outflow for stopping current and the method for reducing flow velocity
Dynamics is washed away, the disaster of heavy rain band is reduced.Colorful water-permeable concrete product after shaping has various colors, bright color
Feature is the places for sightseeing such as garden landscape, park, holiday village with more artistry and sight.
2nd, aggregate of the present invention not only can reclaim a large amount of mineral resources, improve Utilization Rate of Mineral Resources, and
The ecological environment problem that tailings impoundment brings can effectively be alleviated.Waste and old resource is fully recycled, resource is realized
Rationalize, promoted the development of green resource, promote energy-saving and emission-reduction and comprehensive utilization, be pushed further into conventional industries transition and rise
Level, to developing mine recycling economy, realizes that target for energy-saving and emission-reduction tool is of great significance.With chlorite as primary raw material
Colorful water-permeable concrete, is that " product " solves trouble and worry, is that " use " solves Improving The Quality of Products, reduces cost, obtains government
Hold, increase economic efficiency.
Specific embodiment
In following examples in coarse aggregate coarse aggregate apparent density >=2500kg/m3, tight packing density >=1350kg/
m3, voidage≤47.0% of accumulation, crush index≤15%；
Chlorite powder particle size range is in 0.5～1mm；
Cementing agent is the special inorganic cementing agent of concrete；Water reducer is naphthalene water reducer, and water-reducing rate is 18～22%；Face
Expect for civil engineering soluble inorganic pigment；Cementing agent, water reducer, pigment are commercial.
Embodiment 1
The concrete consumption of per cubic metre of the raw material that this enforcement is adopted is as follows：Cement P.O42.5：370kg；Ordinary gravel 3
～5mm：412.5kg；5～8mm：1237.5kg；Green mud stone flour：330kg；Cementing agent：15kg；Water reducer：5.5kg；Pigment：
4.5kg；Water：107.3kg.
The ordinary gravel for coarse aggregate and the green mud stone flour as fine aggregate are taken as, add stirrer for mixing uniform；Again
Cement, cementing agent, water reducer, pigment are disposably added into stir about 30s in mixer；Then in the siccative after mixing
The water of 100g is added, the concrete of dry is made.
After testing its 28d compression strength is 33.0MPa to the colored permeability flexible concrete that the present invention is prepared, and bending resistance is drawn strong
Spend for 3.55MPa, compression strength loss rate is 9% after 25 Frozen-thawed cycleds, and mass loss rate is 2%, and coefficient of permeability is
0.51mm/s, wearability (mill hole length)：26.8mm, voidage：15%.
Embodiment 2
The concrete consumption of per cubic metre of the raw material that this enforcement is adopted is as follows：Cement P.O42.5：370kg；Magnesite tailings
3～5mm：412.5kg；5～8mm：1237.5kg；Green mud stone flour：330kg；Cementing agent：15kg；Water reducer：5.5kg；Pigment：
4.5kg；Water：107.3kg.
Preparation method is with embodiment 1.
The 28d compression strength of the colored permeability flexible concrete prepared is 31.2MPa, and bending tensile strength is 3.51MPa,
Compression strength loss rate is 13% after 25 Frozen-thawed cycleds, and mass loss rate is 4%, and coefficient of permeability is 0.55mm/s, wearability
(mill hole length)：30mm, voidage：13%.
Comparative example 1
The concrete consumption of per cubic metre of the raw material that this enforcement is adopted is as follows：Cement P.O42.5：370kg；Ordinary gravel 3
～5mm：412.5kg；5～8mm：1237.5kg；Fine aggregate (river sand)：330kg；Cementing agent：15kg；Water reducer：5.5kg；Face
Material：4.5kg；Water：107.3kg.
Implementation steps are with embodiment 1.
The 28d compression strength of the colored permeability flexible concrete prepared is 31.8MPa, and bending tensile strength is 3.6MPa,
Compression strength loss rate is 10.5% after 25 Frozen-thawed cycleds, and mass loss rate is 3.8%, and coefficient of permeability is 0.55mm/s, resistance to
Mill property (mill hole length)：31.6mm, voidage：14.3%.
Can be seen that by the data of comparative example 1 and embodiment 1,2 and magnesite tailings are adopted in permeability flexible concrete
Replace ordinary gravel as coarse aggregate, green mud stone flour replacing river sand or sea sand as fine aggregate, can reach with ordinary gravel and
The same effect of river sand or sea sand.
Embodiment 3
A kind of colored permeability flexible concrete, it is composed of the following components：
Cement P.O32.5R：20Kg；3～5mm of ordinary gravel：15kg, 5～8mm：15kg；3～5mm of magnesite tailings：
12.5Kg, 5～8mm：12.5Kg；Green mud stone flour：18Kg；Cementing agent：0.45Kg；Water reducer：0.4Kg；Pigment：0.20Kg；Water：
5.95Kg。
Preparation method is with embodiment 1.
The 28d compression strength of the colored permeability flexible concrete prepared is 24.6MPa, and bending tensile strength is 2.5MPa,
Compression strength loss rate is 12% after 25 Frozen-thawed cycleds, and mass loss rate is 3.7%, and coefficient of permeability is 0.56mm/s, wear-resisting
Property (mill hole length)：32.4mm, voidage：13%.
Embodiment 4
A kind of colored permeability flexible concrete, it is composed of the following components：
Cement P.O52.5：10Kg；3～5mm of magnesite tailings：22.3Kg；5～8mm：44.7Kg；Green mud stone flour：
15.15Kg；Cementing agent：0.5Kg；Water reducer：0.2Kg；Pigment：0.15Kg；Water：7Kg.
Preparation method is with embodiment 1.
The 28d compression strength of the colored permeability flexible concrete prepared is 28.9MPa, and bending tensile strength is 2.8MPa,
Compression strength loss rate is 12.3% after 25 Frozen-thawed cycleds, and mass loss rate is 2.4%, and coefficient of permeability is 0.55mm/s, resistance to
Mill property (mill hole length)：29.3mm, voidage：12.6%.
Embodiment 5
A kind of colored permeability flexible concrete, it is composed of the following components：
Cement P.O42.5R：20Kg；3～5mm of magnesite tailings：17Kg；5～8mm：48Kg；Green mud stone flour：10Kg；Glue
Knot agent：0.5Kg；Water reducer：0.3Kg；Pigment：0.2Kg；Water：4Kg.
Preparation method is with embodiment 1.
The 28d compression strength of the colored permeability flexible concrete prepared is 28.1MPa, and bending tensile strength is 2.7MPa,
Compression strength loss rate is 14.2% after 25 Frozen-thawed cycleds, and mass loss rate is 4.5%, and coefficient of permeability is 0.53mm/s, resistance to
Mill property (mill hole length)：30.6mm, voidage：12.7%.
Embodiment 6
A kind of colored permeability flexible concrete, it is composed of the following components：
Cement P.O42.5R：15Kg；3～5mm of magnesite tailings：15Kg；5～8mm：45Kg；Green mud stone flour：17.03Kg；
Cementing agent：0.4Kg；Water reducer：0.4Kg；Pigment：0.17Kg；Water：7Kg.
Preparation method is with embodiment 1.
The 28d compression strength of the colored permeability flexible concrete prepared is 26.4MPa, and bending tensile strength is 2.6MPa,
Compression strength loss rate is 13.8% after 25 Frozen-thawed cycleds, and mass loss rate is 4.3%, and coefficient of permeability is 0.56mm/s, resistance to
Mill property (mill hole length)：33mm, voidage：13.6%.
Claims (10)
1. a kind of colored permeability flexible concrete, it is characterised in that be made up of the component of following weight portion：
Cement：10～20wt%；Coarse aggregate：55～67wt%；Green mud stone flour：10～18wt%；Cementing agent：0.4～
0.6wt%；Water reducer：0.2～0.4wt%；Pigment：0.15～0.20wt%；Water：4～7wt%.
2. a kind of colored permeability flexible concrete according to claim 1, it is characterised in that the cement is common silicic acid
Salt cement.
3. a kind of colored permeability flexible concrete according to claim 1, it is characterised in that described coarse aggregate is rubble
Or the one kind in magnesite tailings or two kinds.
4. a kind of colored permeability flexible concrete according to claim 1 or 3, it is characterised in that in the coarse aggregate not
It is (3～5mm): (5～8mm)=1: 1～1: 3 with the scope of the materials weight ratio of particle diameter.
5. a kind of colored permeability flexible concrete according to claim 1, it is characterised in that described green mud stone flour conduct
Fine aggregate, particle size range is in 0.5～1mm.
6. a kind of colored permeability flexible concrete according to claim 1, it is characterised in that the cementing agent is concrete
Inorganic cementing agent；Described water reducer is naphthalene water reducer, and water-reducing rate is 18～22%；Described pigment is civil engineering
Use soluble inorganic pigment.
7. a kind of colored permeability flexible concrete as claimed in any of claims 1 to 6, it is characterised in that described
Colored permeability flexible concrete has following performance indications：
Wearability (mill hole length)：≤35mm；
Coefficient of permeability：≥0.50mm/s；
Frost resistance (compression strength loss rate after 25 Frozen-thawed cycleds)：≤ 20%, (mass loss rate after 25 Frozen-thawed cycleds)：≤
5%；
Voidage：11%～17%；
Compression strength：C20 28d compression strength >=20.0MPa；C30 28d compression strength >=30.0MPa；
Flexural tensile strength：C20 28d flexural tensile strengths >=2.5MPa；C30 28d flexural tensile strengths >=3.5MPa.
8. the preparation method of a kind of colored permeability flexible concrete described in claim 1, it is characterised in that including following step
Suddenly：
(1) according to proportioning, coarse aggregate and the green mud stone flour as fine aggregate are taken, is well mixed；
(2) add cement, cementing agent, water reducer, pigment to stir；
(3) water is added in mixed siccative, makes the concrete of dry；
(4) raw material being well mixed is fitted into mould plug and pound, vibrating forming, the demoulding Jing after room temperature environment maintenance is obtained colored soft
Property pervious concrete.
9. a kind of preparation method of colored permeability flexible concrete according to claim 8, it is characterised in that the vibrations
The method of shaping is flat board vibrating forming method.
10. the purposes of a kind of colored permeability flexible concrete described in claim 1, it is characterised in that it is described it is colored it is flexible thoroughly
Water coagulation soil is in garden landscape, park, place for sightseeing as permeable, draining road surface.
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Cited By (6)
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| CN107216092A (en) * | 2017-06-16 | 2017-09-29 | 济南大学 | A kind of cement-based flexible water-permeable brick |
| CN107935493A (en) * | 2017-11-10 | 2018-04-20 | 淮安市水利勘测设计研究院有限公司 | A kind of artificial swamp purified water type eco-concrete and preparation method and application |
| CN108035253A (en) * | 2017-12-18 | 2018-05-15 | 王燕 | A kind of bridge deck structure of arch type bridge engineering |
| CN110306397A (en) * | 2019-06-28 | 2019-10-08 | 宁夏建工集团有限公司 | A kind of steelframe brace type Combined concrete splicing construction and preparation method thereof |
| CN111302716A (en) * | 2020-03-31 | 2020-06-19 | 陈洪涛 | Method for designing colored concrete |
| CN111410472A (en) * | 2019-12-11 | 2020-07-14 | 孙明晶 | White mud autoclaved aerated concrete and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216092A (en) * | 2017-06-16 | 2017-09-29 | 济南大学 | A kind of cement-based flexible water-permeable brick |
| CN107216092B (en) * | 2017-06-16 | 2019-07-30 | 济南大学 | A kind of cement-based flexible water-permeable brick |
| CN107935493A (en) * | 2017-11-10 | 2018-04-20 | 淮安市水利勘测设计研究院有限公司 | A kind of artificial swamp purified water type eco-concrete and preparation method and application |
| CN108035253A (en) * | 2017-12-18 | 2018-05-15 | 王燕 | A kind of bridge deck structure of arch type bridge engineering |
| CN110306397A (en) * | 2019-06-28 | 2019-10-08 | 宁夏建工集团有限公司 | A kind of steelframe brace type Combined concrete splicing construction and preparation method thereof |
| CN111410472A (en) * | 2019-12-11 | 2020-07-14 | 孙明晶 | White mud autoclaved aerated concrete and preparation method thereof |
| CN111302716A (en) * | 2020-03-31 | 2020-06-19 | 陈洪涛 | Method for designing colored concrete |
| CN111302716B (en) * | 2020-03-31 | 2021-10-01 | 陈洪涛 | Method for designing colored concrete |
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| Publication number | Publication date |
|---|---|
| CN106630842B (en) | 2018-12-21 |
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