CN105924055A - Long-acting high-permeability pervious concrete - Google Patents
Long-acting high-permeability pervious concrete Download PDFInfo
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- CN105924055A CN105924055A CN201610254658.4A CN201610254658A CN105924055A CN 105924055 A CN105924055 A CN 105924055A CN 201610254658 A CN201610254658 A CN 201610254658A CN 105924055 A CN105924055 A CN 105924055A
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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
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- 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 invention provides long-acting high-permeability pervious concrete which has a long-term high permeable rate and a high anti-clogging rate. The pervious concrete comprises the following components in percentage by weight: 12-15% of ash concrete, 75-80% of a coarse aggregate, 5-10% of a water corrosion inhibitor, 1-2% of an active admixture, 0.3-0.5% of re-dispersible emulsion powder, 0.01-0.02% of cellulose ether and 0.2-0.3% of a water reducer, wherein the water corrosion inhibitor is prepared by uniformly mixing granular alum of which the particle size is 5-8mm and silicon phosphorus crystals according to a ratio of 1:(2-4) and then uniformly spraying a mixture of VAE emulsion, cement and water on particle surfaces, and the coarse aggregate is broken stones of which the particle size is 5-15mm. The pervious concrete provided by the invention adopts the combination of the water corrosion inhibitor and meta-kaolin to replace part of the coarse aggregate and cement so as to ensure the strength that the concrete should have, and utilizes the composition of the alum and silicon phosphorus crystals which greatly differ in water solubility as a corrosion inhibitor, and obtains a high initial porosity and a lasting pervious effect by virtue of the combination of rapid dissolution of the album and slow dissolution of the silicon phosphorus crystals.
Description
Technical field
The present invention relates to a kind of concrete, particularly relate to a kind of pervious concrete, specifically relate to one and have for a long time
The long-acting height saturating property pervious concrete of high permeability rate and high blockage resisting rate.
Background technology
In recent years, along with the quickening of urbanization Yu process of industrialization, high buildings and large mansions stand in great numbers, densely-populated, and ground is many
Being covered by armored concrete, road surface water-permeable and air permeable extreme difference, after heavy rain or heavy rain, rainwater cannot permeate in time, flows into
The water yield of sewer is increased dramatically, and causes city hydrops serious, even forms waterlogging, and this has not only broken up original ecological ring
Border, and have a strong impact on health and the traffic in city.In the most frequent visible domestic many big cities occur because of heavy rain
Flood and the report of the startling event such as cause that people's lives and properties sustain losses severely.
Along with the enhancing of people's environmental consciousness, the concept in sponge city is suggested.So-called sponge city, it is simply that city energy
Enough as sponge, adapting to the aspect such as environmental change and reply natural disaster, there is good " elastic ", namely energy time rainy
Water suction, water-retention, infiltration, water purification, " can discharge the water stored " and be used when needing.Sponge city to be built most critical
Any is that road surface must use pervious concrete.
Pervious concrete is a kind of ecological environment-friendly type concrete, and it is selected by material, and utilizes single grating
Aggregate, makes concrete have continuous print hole, thus obtains good rain penetration effect.There is the permeable of upper and lower interconnected pore
Concrete can be effectively improved the heat balance on earth's surface, strengthens the circulation of the upper and lower water in earth's surface, and city is increased groundwater resources, alleviation
Tropical island effect, improve urban climate and have great importance, but from the point of view of the applicable cases of current pervious concrete, exist
Big problem is initial permeable effective, but As time goes on, the meeting such as the silt brought into through rain drop erosion, dust, rubbish
The hole of the most clogging pervious concrete so that it is lose infiltration effect, this phenomenon is more in park etc. vegetation, personnel relatively
Intensive region is especially apparent, it is common that within 2 to three years, road surface loses the function that infiltration is permeable the most completely.For this phenomenon,
Solution one is to use giant periodic flushing at present, but this method can only remove the silt of concrete surface, dirt
Soil and rubbish, do not work to the hole of the inside, final or cannot guarantee permeable persistence, and flushing repeatedly is easy
Peeling off occurs in the rubble making pervious concrete surface；Two is again to renovate after employing is rooted out, and this method is uneconomical, also can simultaneously
Produce a large amount of building waste.
Summary of the invention
For solve with present on problem, it is an object of the invention to provide one and there is high initial porosity and high continue hole
The long-acting height saturating property pervious concrete of gap rate.
For realizing object above, the pervious concrete with the saturating property of long-acting height of the present invention, including following component and weight
Proportioning
Ash concrete 12～15%
Coarse aggregate 74～80%
Water corrosion inhibiter 4.5～10%
Active admixture 0.9～2%
Redispersable latex powder 0.3～0.5%
Cellulose ether 0.01～0.02%
Water reducer 0.15～0.3%
Wherein water corrosion inhibiter be by the graininess Alumen that particle diameter is 5-8mm and Si-P crystal in the ratio mix homogeneously of 1 2-4 after, then
Being formed in particle surface by the mixture even application of VAE emulsion+cement+water, coarse aggregate size is the rubble of 5-15mm.
Not deliquescence, non-efflorescing cementitious when depositing in order to ensure water corrosion inhibiter, is easy to again the dissolving of water corrosion inhibiter, above-mentioned Alumen simultaneously
+ Si-P crystal and rate of charge preferably 1 0.12-0.14 of VAE emulsion+cement+water.
The weight ratio preferably 2 0.5-1.5 6-8 of above-mentioned VAE emulsion, cement and water.
The portland cement that above-mentioned ash concrete is preferably 42.5 or 52.5 grades.
In order to improve the intensity of product, above-mentioned activity spike preferable particle size≤1.3um has the inclined of high pozzolanic activity
Kaolin.
In order to more preferably strengthen the interfacial effect between coarse aggregate and powder, above-mentioned redispersable latex powder, optimal ethylene-vinegar
Acid ethylene copolymer.
In order to more preferably improve workability and the parcel property of slurry, above-mentioned cellulose ether preferred viscosities is 30000-
The hydroxypropyl methyl cellulose ether of 100000cps.
For more preferably improving the comprcssive strength of product, the preferred naphthalene sulfonate of above-mentioned water reducer, sulfonated melamine or polycarboxylic acids
Salt.
The long-acting height saturating property pervious concrete of the present invention, uses water corrosion inhibiter to combine with metakaolin and replaces part thick
Aggregate and cement, it is ensured that the due intensity of concrete, and utilize the widely different group of two kinds of water solubilities of bright vanadium and Si-P crystal
Compound, as corrosion inhibiter, is combined with slowly dissolving of Si-P crystal by the rapid solution of bright vanadium, obtains high initial void
Rate and lasting permeable effect.Bright vanadium and Si-P crystal self-strength height, neat appearance, particle diameter are close with rubble, 5-8mm particle diameter bright
Vanadium can be completely dissolved in the circulating water of about 6 hours, when rainwater penetrates into through pervious concrete, can fall water by rapid solution
The bright vanadium of part in corrosion inhibiter, makes inside concrete form the most regular large hole hole, thus obtains than common permeable coagulation
Soil higher initial effective porosity, the beneficially infiltration of rainwater, more can make the foreign material such as the silt of larger particles, dust along with water
Stream flows out, thus reduces the possibility that space is blocked；And Si-P crystal stable performance, only the most slowly dissolve in circulating water, particle diameter
The Si-P crystal of 5-8mm typically requires and just can be completely dissolved in the long-term circulating water of 12 months, has very long incubation period, when
When rainwater flows through, Si-P crystal slowly dissolves produced hole and further increases effective continuous print hole, it is ensured that permeability rate begins
It is maintained at higher level eventually, reduces the effect of plug-hole.The pervious concrete of the present invention, has good water-permeable and air permeable
And comprcssive strength, and raw material is prepared relatively simple, is conducive to promoting the use of.
Detailed description of the invention
The specific embodiment of the present invention is presented herein below, and these embodiments are that height long-acting to the present invention saturating property pervious concrete is joined
Side illustrates with preparation process, and is not used to limit the scope of the invention.
The preparation of corrosion inhibiter
The granular Alumen of 5-8mm is selected to mix homogeneously in the ratio of 12 with the Si-P crystal of 5-8mm, by VAE emulsion+cement+water
By the 217 mixed liquor even application formed in particle surface, make particle surface form the protecting film of layer, deposited
Time not deliquescence, non-efflorescing cementitious, be conducive to improving the water corrosion inhibiter of interface interaction simultaneously, stand-by.
Embodiment
1, formula (unit K g)
2, preparation
By above-mentioned formula by each raw material mix homogeneously, add the water of concrete total amount 35%, use forced mixer scene to stir
Mix, obtain pervious concrete.
3, performance test
(1) by above-mentioned each formula prepare pervious concrete sample after standard curing again through flow velocity be 0.6-0.7/m3Flowing water
Maintenance 6 hours, carries out performance survey according to CJJ/T135-2009 " water-permeable cement concrete pavement technique code " standard to each sample
Examination, records result as follows
Testing result from upper table is it can be seen that owing to sample uses curing in water, with the addition of the permeable of water corrosion inhibiter sample
Property have with continuous porosity and significantly to improve, and its intensity reduces and inconspicuous, can meet the requirement of C20 rank completely.
(2) the pervious concrete sample that above-mentioned each formula prepares all is placed in the 1 year (Wuhan 2015 of footpath of open air
Year: rainy natural law is between 128 days-149 days, and precipitation is between 1411.4 millimeters-1565.9 millimeters), according to CJJ/T135-
2009 " water-permeable cement concrete pavement technique code " its properties of standard testing, records result as follows
From the testing result of upper table it can be seen that the rain drop erosion outdoor through a year, the water penetration of traditional sample and continuous aperture
Gap rate is greatly reduced, and when water corrosion inhibiter volume is 5%, the water penetration after one year and continuous porosity are also wanted than traditional sample
Much higher, simultaneously intensity and be not apparent from reduce.
The pervious concrete of the present invention is able to ensure that water penetration and continuous porosity are maintained at higher level, reduces
The effect of blocking；Although it is much higher that the cost of water corrosion inhibiter compares rubble, but because of addition be 5-10% time, can obtain non-
Often significantly effect, from a cost perspective, water corrosion inhibiter improves the first current cost of pervious concrete, but the making of its functional period
Being greatly improved with the life-span, reduce maintenance cost, finally its integrated cost does not significantly improve, and is fully able to promote the use of.
Claims (8)
1. there is a pervious concrete for the saturating property of long-acting height, including following component and weight proportion:
Ash concrete 12～15%
Coarse aggregate 75～85%
Water corrosion inhibiter 5～10%
Active admixture 1～2%
Redispersable latex powder 0.3～0.5%
Cellulose ether 0.01～0.02%
Water reducer 0.2～0.3%
Wherein water corrosion inhibiter be by the graininess Alumen that particle diameter is 5-8mm and Si-P crystal in the ratio mix homogeneously of 1 2-4 after, then
Being formed in particle surface by the mixture even application of VAE emulsion+cement+water, coarse aggregate is the rubble of particle diameter 5-15mm.
The pervious concrete with the saturating property of long-acting height the most according to claim 1, it is characterised in that: described Alumen+silicon phosphorus
Brilliant and VAE emulsion+cement+water rate of charge is 1 0.12-0.14.
The pervious concrete with the saturating property of long-acting height the most according to claim 2, it is characterised in that: described VAE emulsion, water
The weight ratio of mud and water is 2 0.5-1.5 6-8.
The pervious concrete with the saturating property of long-acting height the most according to claim 3, it is characterised in that: described ash concrete is
42.5 or 52.5 grades of portland cements.
The pervious concrete with the saturating property of long-acting height the most according to claim 4, it is characterised in that: described activity spike is
The metakaolin with high pozzolanic activity of particle diameter≤1.3um.
The pervious concrete with the saturating property of long-acting height the most according to claim 5, it is characterised in that: described redispersible breast
Rubber powder is ethylene-vinyl acetate copolymer.
The pervious concrete with the saturating property of long-acting height the most according to claim 6, it is characterised in that: described cellulose ether is
The hydroxypropyl methyl cellulose ether of viscosity 30000-100000cps.
The pervious concrete with the saturating property of long-acting height the most according to claim 7, it is characterised in that: described water reducer is naphthalene
Sulfonate, sulfonated melamine or polycarboxylate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610254658.4A CN105924055B (en) | 2016-04-22 | 2016-04-22 | A kind of pervious concrete with long-acting high permeability |
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| CN201610254658.4A CN105924055B (en) | 2016-04-22 | 2016-04-22 | A kind of pervious concrete with long-acting high permeability |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587833A (en) * | 2016-12-13 | 2017-04-26 | 河池永固混凝土有限责任公司 | Pervious concrete |
| CN106673475A (en) * | 2017-01-19 | 2017-05-17 | 天津沃佰艾斯科技有限公司 | Porous fiber cotton substrate as well as preparation method and application thereof |
| CN106830824A (en) * | 2017-01-18 | 2017-06-13 | 郑州春晟装饰新材料科技股份有限公司 | A kind of water-permeable brick is mated formation with permeable bonding leveling mortar |
| CN107098632A (en) * | 2017-06-06 | 2017-08-29 | 湖南三恒建设园林工程有限公司 | High-performance environment-friendly ecotype pervious concrete |
| CN108069643A (en) * | 2017-11-29 | 2018-05-25 | 贵州省材料产业技术研究院 | Using method of the water-soluble granular as the circulation high permeability rate terrace of material preparation |
| CN108101445A (en) * | 2017-11-29 | 2018-06-01 | 贵州省材料产业技术研究院 | The method that high permeability rate permeable terrace is prepared using molten circulation method |
| CN108529933A (en) * | 2017-03-06 | 2018-09-14 | 北京城建银龙混凝土有限公司 | A kind of pervious concrete |
| CN109095844A (en) * | 2017-06-21 | 2018-12-28 | 防城港市明隆辉混凝土有限公司 | Efficient water storage permeable concrete |
| CN109265108A (en) * | 2018-11-02 | 2019-01-25 | 嘉华特种水泥股份有限公司 | A kind of water purification eco-concrete and preparation method thereof |
| CN110627447A (en) * | 2019-10-22 | 2019-12-31 | 深圳市信泰工业自动化设备有限公司 | Pervious concrete sewage filtering device and method thereof |
| CN112851218A (en) * | 2021-01-29 | 2021-05-28 | 桐庐宏基源混凝土有限公司 | Preparation method of energy-saving environment-friendly high-strength fast-permeable concrete |
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| CN103641411A (en) * | 2013-12-03 | 2014-03-19 | 西南科技大学 | Method for preparing telescopic-pore ecological concrete by using sludge-bentonite base material |
| CN103910821A (en) * | 2014-03-14 | 2014-07-09 | 中科院广州化学有限公司南雄材料生产基地 | A high-pressure-resistant water-permeable porous material and a preparation method thereof |
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| US5931773A (en) * | 1995-06-09 | 1999-08-03 | Entact, Inc. | Method for treatment of solid waste to minimize permeability of the waste |
| CN102850077A (en) * | 2012-08-21 | 2013-01-02 | 西南科技大学 | Method for producing sludge-based ecological concrete product |
| CN103641411A (en) * | 2013-12-03 | 2014-03-19 | 西南科技大学 | Method for preparing telescopic-pore ecological concrete by using sludge-bentonite base material |
| CN103910821A (en) * | 2014-03-14 | 2014-07-09 | 中科院广州化学有限公司南雄材料生产基地 | A high-pressure-resistant water-permeable porous material and a preparation method thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587833A (en) * | 2016-12-13 | 2017-04-26 | 河池永固混凝土有限责任公司 | Pervious concrete |
| CN106830824A (en) * | 2017-01-18 | 2017-06-13 | 郑州春晟装饰新材料科技股份有限公司 | A kind of water-permeable brick is mated formation with permeable bonding leveling mortar |
| CN106673475A (en) * | 2017-01-19 | 2017-05-17 | 天津沃佰艾斯科技有限公司 | Porous fiber cotton substrate as well as preparation method and application thereof |
| CN106673475B (en) * | 2017-01-19 | 2018-01-30 | 天津沃佰艾斯科技有限公司 | A kind of porous fibre cotton substrate and its preparation method and application |
| CN108529933B (en) * | 2017-03-06 | 2021-02-09 | 北京城建银龙混凝土有限公司 | Pervious concrete |
| CN108529933A (en) * | 2017-03-06 | 2018-09-14 | 北京城建银龙混凝土有限公司 | A kind of pervious concrete |
| CN107098632A (en) * | 2017-06-06 | 2017-08-29 | 湖南三恒建设园林工程有限公司 | High-performance environment-friendly ecotype pervious concrete |
| CN109095844A (en) * | 2017-06-21 | 2018-12-28 | 防城港市明隆辉混凝土有限公司 | Efficient water storage permeable concrete |
| CN108101445A (en) * | 2017-11-29 | 2018-06-01 | 贵州省材料产业技术研究院 | The method that high permeability rate permeable terrace is prepared using molten circulation method |
| CN108069643A (en) * | 2017-11-29 | 2018-05-25 | 贵州省材料产业技术研究院 | Using method of the water-soluble granular as the circulation high permeability rate terrace of material preparation |
| CN109265108A (en) * | 2018-11-02 | 2019-01-25 | 嘉华特种水泥股份有限公司 | A kind of water purification eco-concrete and preparation method thereof |
| CN109265108B (en) * | 2018-11-02 | 2020-12-01 | 嘉华特种水泥股份有限公司 | Water-purifying ecological concrete and preparation method thereof |
| CN110627447A (en) * | 2019-10-22 | 2019-12-31 | 深圳市信泰工业自动化设备有限公司 | Pervious concrete sewage filtering device and method thereof |
| CN112851218A (en) * | 2021-01-29 | 2021-05-28 | 桐庐宏基源混凝土有限公司 | Preparation method of energy-saving environment-friendly high-strength fast-permeable concrete |
| CN112851218B (en) * | 2021-01-29 | 2022-05-24 | 桐庐宏基源混凝土有限公司 | Preparation method of energy-saving environment-friendly high-strength fast-permeable concrete |
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