CN108585696A - A kind of pervious concrete preparation method of anti-moisture evaporation - Google Patents
A kind of pervious concrete preparation method of anti-moisture evaporation Download PDFInfo
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- CN108585696A CN108585696A CN201810756675.7A CN201810756675A CN108585696A CN 108585696 A CN108585696 A CN 108585696A CN 201810756675 A CN201810756675 A CN 201810756675A CN 108585696 A CN108585696 A CN 108585696A
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- pervious concrete
- water
- moisture evaporation
- concrete preparation
- emulsifier
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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
-
- 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
- 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 invention discloses a kind of pervious concrete preparation methods of anti-moisture evaporation, it is related to concrete field, the slurry moisture evaporation of aggregate surface influences to bond between particles of aggregates soon when constructing for pervious concrete, water consumption excessively can make mud flow in aggregate the problem of causing pore plugging, the present invention proposes that the water evaporation inhibitor that a kind of high-efficient retarder and heterogeneous emulsifier are combined prepares pervious concrete, it is stirring, pervious concrete working performance can be kept in transport and work progress, ensure normal construction, meet the good strength and permeance property of pervious concrete.
Description
Technical field
The present invention relates to the water that concrete field more particularly to a kind of high-efficient retarder and heterogeneous emulsifier are combined
The pervious concrete for dividing evaporation suppressor to prepare, is specifically related to a kind of pervious concrete preparation method of anti-moisture evaporation.
Background technology
Currently, permeable concrete has been increasingly subject to the weight of people as a kind of pavement material of novel ecological environment-friendly type
Depending on.Applying for pervious concrete is also at the early-stage in China's most area, but has exposed many during engineer application
There are the problems such as running sand, cracking, bad hydraulic permeability etc. in problem, such as the road surface place that pervious concrete pours.Therefore must pay attention to
Quality control to pervious concrete work progress just can ensure that pervious concrete gets a desired effect.
Due to the property of pervious concrete, so being required in dispensing mixing ratio very stringent.It is especially therein to contain
Water is limited within the scope of one of very little, to ensure the good strength and permeability of pervious concrete；This is also just meaned
It, water content can excessively be such that mud flows in aggregate to cause pore plugging problem, serious shadow is caused to concrete road surface water penetration
It rings；Too dry influence aggregate bonds, and pervious concrete insufficient strength makes surface particles fall off, and to conventional concrete then without so
Strong influence.Therefore, required water consumption in aggregate is carefully calculated, because these water can all be absorbed by aggregate, if aqueous
It is excessive or very few, adverse consequences can be caused to engineering.To ensure the coefficient of permeability and intensity of pervious concrete, usually first handle
50% or so water consumption, aggregate input blender stirring 60s or so, then add the materials such as additive cement and are stirred for 30s
Left and right, relatively after, stirring 40s or so is added in surplus water, pervious concrete in good condition should hold agglomerating, hand
Pine group dissipates, and aggregate wraps up in slurry uniformly without trickling, and slurry surface is general glossy.Because of the slurry moisture evaporation of pervious concrete aggregate surface
Quickly, thus the pervious concrete mixed should be transported to work surface immediately and carry out the construction that paves, temperature situation when according to construction, thoroughly
Water coagulation soil should be no more than 30 minutes from the time interval for being stirred to the compacting that paves and completing when summer, and when spring and autumn should be no more than
45 minutes.
The pervious concrete mode of production is mixing plant concentrated compactness when scope of construction item is larger, is transported to permeable mixed when construction site
Quickly, stiff shape is presented in the slurry moisture evaporation of solidifying soil aggregate surface, if plus water seriously affect pervious concrete quality, therefore have
Effect prevents the evaporation of pervious concrete surface moisture from just becoming urgent problem to be solved.This patent has invented one kind in view of the above problems
The water evaporation inhibitor that high-efficient retarder and heterogeneous emulsifier are combined prepares pervious concrete, which inhibits
Agent can effectively prevent the slurry moisture evaporation of pervious concrete aggregate surface, can be kept in stirring, transport and work progress
Pervious concrete working performance, meets construction requirement.
Existing moisture steaming blocking agent for plastic concrete domestic at present, match ratio is different from the present invention, and its user
Method is not pre-hardening plastic concrete surface to be sprayed at after concrete formation, and non-present invention is as pervious concrete raw material
It puts into production, is also differed using approach.
Invention content
The technical problem to be solved by the present invention is to：The slurry moisture evaporation fast shadow of aggregate surface when pervious concrete is constructed
It is bonded between sound particles of aggregates, water consumption excessively can make mud flow in aggregate the problem of causing pore plugging.
It is saturating that the present invention proposes prepared by the water evaporation inhibitor that a kind of high-efficient retarder and heterogeneous emulsifier are combined
Water coagulation soil, can keep pervious concrete working performance in stirring, transport and work progress, ensure normal construction, meet saturating
The good strength and permeance property of water coagulation soil.
To achieve the goals above, the present invention uses following scheme：
A kind of pervious concrete preparation method of anti-moisture evaporation, the pervious concrete is using No. 52.5 and No. 42.5
Portland cement or ordinary portland cement are used as using single graded broken stone and are gathered materials as cementitious material, anti-as volcanic ash using silicon ash
Admixture is answered, using emulsion acrylic resin as modified material, using composite additive as water evaporation inhibitor,
Pigment is made using cement coloring agent；
Pervious concrete mass fraction match ratio (kg/m3)：
Cement：250~450；
Silicon ash：40~70；
Emulsion acrylic resin：4.2~11.8；
Single-stage matches gravel aggregate：1400~1600；
Water evaporation inhibitor:4.6~7.2；
Pigment：6~15；
Water：110~130.
The water evaporation inhibitor selects high-efficient retarder and heterogeneous emulsifier to be combined；
The high-efficient retarder is by mass percentage：Polycarboxylate water-reducer 40~55%, the ethylenediamine tetraacetic of 15-20%
The phosphoric acid of methylenephosphonic acid sodium calcium and 25-45% mixing composition；
The heterogeneous emulsifier uses MJPZ material for C16OH/C4OH mixtures, mass ratio 4: 1, surface concentration
For 6.0 × 10-2g/m2, formed using the nonionic surfactant of AEO series as emulsifier；
The heterogeneous emulsifier is according to the mass fraction：1 part, 20 parts petroleum ethers of C16OH/C4OH mixtures, 5 parts of AEO
Nonionic surfactant, the 30 parts of distilled water of series are sufficiently mixed and uniformly form；
It is more compound than 10 ︰ 1 that the water evaporation inhibitor selects high-efficient retarder and heterogeneous emulsifier to be compounded according to quality
It forms；
The single-stage with gravel aggregate using 2.4~4.75mm, 4.75~9.5mm or 9.6~
The natural rubble or tailings stone of 13.2mm gradings；
The pervious concrete preparation method of the anti-moisture evaporation includes the following steps：
(1) first single graded broken stone is moistened in advance according to the 10% of specified water consumption；A certain amount of cement, silicon ash are weighed again
And pigment, it is placed in and mortar mixer is forced to stir 2 minutes to uniform；Single graded broken stone is put into blender mixes 2 minutes to equal
It is even.Emulsion acrylic resin, water evaporation inhibitor and a part of water are uniformly mixed, blender is placed in and stirs 2 minutes, make bone
Expect surface by water uniform wet；Again plus remaining water pours into stirring 5 minutes, obtains pervious concrete material.
(2) the permeable concrete material after mix is paved on ready road bed, with tool by permeable coagulation
Soil shakeouts, and with low frequency plate vibrator in surface vibration, keeps the mixture closely knit smooth, is then prevented with film covering curing
Moisture evaporation；
(3) water seasoning in 7 days is completed in construction, and maintenance waits for that surface is completely dried after 7 days, sprays homochromy protective agent, make road
Bright-coloured uniform color is presented in face.
Compared with prior art, the present invention can obtain following technique effect：
Increase intensity, extend construction operable time；The method of the present invention can significantly extend stirring, transport and construct
Operating time in journey ensures the good strength and permeance property of pervious concrete, meets the need of extensive centralized production construction
It wants.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The application principle of the present invention is further described with reference to specific embodiment.
Embodiment 1-3
A kind of pervious concrete preparation method of anti-moisture evaporation, the pervious concrete is using No. 52.5 and No. 42.5
Portland cement or ordinary portland cement are used as using single graded broken stone and are gathered materials as cementitious material, anti-as volcanic ash using silicon ash
Admixture is answered, using emulsion acrylic resin as modified material, using composite additive as water evaporation inhibitor,
Pigment is made using cement coloring agent；
Pervious concrete mass fraction match ratio (kg/m3)：
Cement：250~450；
Silicon ash：40~70；
Emulsion acrylic resin：4.2~11.8；
Single-stage matches gravel aggregate：1400~1600；
Water evaporation inhibitor:4.6~7.2；
Pigment：6~15；
Water：110~130.
The water evaporation inhibitor selects high-efficient retarder and heterogeneous emulsifier to be combined；
The high-efficient retarder is by mass percentage：Polycarboxylate water-reducer 40~55%, the ethylenediamine tetraacetic of 15-20%
The phosphoric acid of methylenephosphonic acid sodium calcium and 25-45% mixing composition；
The heterogeneous emulsifier uses MJPZ material for C16OH/C4OH mixtures, mass ratio 4: 1, surface concentration
For 6.0 × 10-2g/m2, formed using the nonionic surfactant of AEO series as emulsifier；
The heterogeneous emulsifier is according to the mass fraction：1 part, 20 parts petroleum ethers of C16OH/C4OH mixtures, 5 parts of AEO
Nonionic surfactant, the 30 parts of distilled water of series are sufficiently mixed and uniformly form；
It is more compound than 10 ︰ 1 that the water evaporation inhibitor selects high-efficient retarder and heterogeneous emulsifier to be compounded according to quality
It forms；
The single-stage with gravel aggregate using 2.4~4.75mm, 4.75~9.5mm or 9.6~
The natural rubble or tailings stone of 13.2mm gradings；
The pervious concrete preparation method of the anti-moisture evaporation includes the following steps：
(1) first single graded broken stone is moistened in advance according to the 10% of specified water consumption；A certain amount of cement, silicon ash are weighed again
And pigment, it is placed in and mortar mixer is forced to stir 2 minutes to uniform；Single graded broken stone is put into blender mixes 2 minutes to equal
It is even.Emulsion acrylic resin, water evaporation inhibitor and a part of water are uniformly mixed, blender is placed in and stirs 2 minutes, make bone
Expect surface by water uniform wet；Again plus remaining water pours into stirring 5 minutes, obtains pervious concrete material.
(2) the permeable concrete material after mix is paved on ready road bed, with tool by permeable coagulation
Soil shakeouts, and with low frequency plate vibrator in surface vibration, keeps the mixture closely knit smooth, is then prevented with film covering curing
Moisture evaporation；
(3) water seasoning in 7 days is completed in construction, and maintenance waits for that surface is completely dried after 7 days, sprays homochromy protective agent, make road
Bright-coloured uniform color is presented in face.
Wherein：
1. pervious concrete raw material；
Water evaporation inhibitor：
High-efficient retarder uses polycarboxylate water-reducer 50%, 20% ethylene diamine tetra methylene phosphonic acid sodium calcium and 30% phosphoric acid
It is sufficiently mixed composition；
Heterogeneous emulsifier uses MJPZ material for C16OH/C4OH mixtures, mass ratio 4: 1, and surface concentration is
6.0×10-2g/m2, formed using the nonionic surfactant of AEO series as emulsifier.Select C16OH/C4OH mixtures 1
Part, 20 parts of petroleum ethers, 5 parts of AEO series nonionic surfactant, 30 parts of distilled water be sufficiently mixed uniformly；It is super using numerical control
Sound wave washer interval is shaken, and is shaken interval time twice and is advisable with 10s, continues ten minutes, you can be made be creamy white it is semi-transparent
The w/o type lotion of bright shape.
High-efficient retarder and heterogeneous emulsifier are combined water evaporation inhibitor according to 10 ︰ 1 of mass ratio.
Cement：Saddle lance asiabell root cement plant P.O42.5 class g cements；
Rubble：Select 4.75~9.5mm grading iron tailings stones as the aggregate of pervious concrete.
Silicon ash：Concrete ultra-fine SILICA FUME, activity index >=105%；
Emulsion acrylic resin：Pure-acrylic emulsion, viscosity 12 ± 0.5 seconds；
Pigment：The iron oxide pigment of Shanghai one product production；
Water：Natural water.
2. proportion of porous concrete mixture, as shown in table 1.
1 pervious concrete match ratio (kg/m of table3)
3. the pervious concrete performance comparison of anti-moisture evaporation, as shown in table 2.
The pervious concrete performance comparison of 2 anti-moisture evaporation of table
From above example and test data：The pervious concrete of anti-moisture evaporation of the present invention has following excellent
Point：
1. increasing intensity.According to the strength grade of pervious concrete be not added the blank sample of water evaporation inhibitor due to
Slurry moisture loss too fast influence aggregate in surface bonds, and pervious concrete intensity is caused to decline.The appropriate height of the present invention of incorporation
After anti-moisture evaporation, aggregate wraps up in slurry uniformly without trickling, and holding is agglomerating, and the mechanical property of pervious concrete can be obviously improved.
During use, its volume can be adjusted according to the strength conditions of pervious concrete, to reach best use effect.
2. extending construction operable time.Under 25 DEG C of construction environments, after mixing water evaporation inhibitor of the present invention,
The construction operable time of pervious concrete mixture is obviously prolonged.By taking C20 as an example, blank sample is operable at 25 DEG C
Time is 12min, and under equal conditions, the operable time of embodiment pervious concrete is in 58min or more.Pervious concrete can
The extension of operating time can increase the flexibility of site operation personnel, and secondary the case where adding water is effectively avoided to occur.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of pervious concrete preparation method of anti-moisture evaporation, it is characterised in that：The pervious concrete uses No. 52.5
Portland cement or ordinary portland cement with No. 42.5 are made using single graded broken stone as gathering materials using silicon ash as cementitious material
For pozzolanic reaction admixture, using emulsion acrylic resin as modified material, using composite additive as moisture
Evaporation suppressor makees pigment using cement coloring agent；
Pervious concrete mass fraction match ratio (kg/m3)：
Cement：250~450；
Silicon ash：40~70；
Emulsion acrylic resin：4.2~11.8；
Single-stage matches gravel aggregate：1400~1600；
Water evaporation inhibitor:4.6~7.2；
Pigment：6~15；
Water：110~130.
2. the pervious concrete preparation method of anti-moisture evaporation according to claim 1, it is characterised in that the moisture steams
Hair inhibitor selects high-efficient retarder and heterogeneous emulsifier to be combined.
3. the pervious concrete preparation method of anti-moisture evaporation according to claim 2, it is characterised in that described efficiently slow
Solidifying agent is by mass percentage：Polycarboxylate water-reducer 40~55%, the ethylene diamine tetra methylene phosphonic acid sodium calcium and 25- of 15-20%
45% phosphoric acid mixing composition.
4. the pervious concrete preparation method of anti-moisture evaporation according to claim 2, it is characterised in that described heterogeneous
Emulsifier uses MJPZ material for C16OH/C4OH mixtures, mass ratio 4: 1, and surface concentration is 6.0 × 10-2g/m2, with
The nonionic surfactant of AEO series forms for emulsifier.
5. the pervious concrete preparation method of anti-moisture evaporation according to claim 4, it is characterised in that described heterogeneous
Emulsifier mass fraction is calculated as：The non-ionic surface active of 1 part, 20 parts petroleum ethers of C16OH/C4OH mixtures, 5 parts of AEO series
Agent, 30 parts of distilled water are sufficiently mixed and uniformly form.
6. the pervious concrete preparation method of anti-moisture evaporation according to claim 2, it is characterised in that the moisture steams
Hair inhibitor selects high-efficient retarder and heterogeneous emulsifier to be compounded according to quality and is combined than 10 ︰ 1.
7. the pervious concrete preparation method of anti-moisture evaporation according to claim 1, it is characterised in that the single-stage is matched
Gravel aggregate is using 2.4~4.75mm, 4.75~9.5mm or the natural rubble or tailings stone of 9.6~13.2mm gradings.
8. the pervious concrete preparation method of anti-moisture evaporation according to claim 1, it is characterised in that the waterproof
The pervious concrete preparation method of evaporation is divided to include the following steps：
(1) first single graded broken stone is moistened in advance according to the 10% of specified water consumption；Cement, silicon ash and pigment is weighed again to be placed in by force
Mortar mixer processed stirs 2 minutes to uniform；Single graded broken stone is put into blender mixes 2 minutes to uniform, by acrylic acid tree
Fat liquor, water evaporation inhibitor and water uniformly mix, and are placed in blender and stir 2 minutes, make aggregate surface by water uniform wet；
Again plus the water of remaining ratio pours into stirring 5 minutes, obtains pervious concrete material；
(2) the permeable concrete material after mix is paved on ready road bed, pervious concrete is shakeout, use is low
Frequency plate vibrator keeps the mixture closely knit smooth in surface vibration, then uses film covering curing；
(3) water seasoning in 7 days is completed in construction, and maintenance waits for that surface is completely dried after 7 days, sprays homochromy protective agent, makes the road surface be in
Existing bright-coloured uniform color.
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| CN201810756675.7A CN108585696A (en) | 2018-07-11 | 2018-07-11 | A kind of pervious concrete preparation method of anti-moisture evaporation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825390A (en) * | 2020-06-18 | 2020-10-27 | 东莞市冠峰混凝土有限公司 | Self-curing concrete |
| CN113511858A (en) * | 2021-05-14 | 2021-10-19 | 广东汇强外加剂有限公司 | Preparation and construction method of pervious concrete |
| CN113683359A (en) * | 2021-08-10 | 2021-11-23 | 北京科技大学 | Preparation method of permeable concrete with all-iron tailing and waste rock aggregate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235267A (en) * | 2007-01-31 | 2008-08-06 | 天津科技大学 | Method for preparing heterogeneous water evaporation inhibitor |
| CN101293763A (en) * | 2008-06-26 | 2008-10-29 | 河南国基建设集团有限公司 | Water permeable concrete and pavement construction method |
| CN107337375A (en) * | 2016-12-07 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of concrete admixture and use a kind of its premixing pervious concrete |
| CN107555835A (en) * | 2017-09-08 | 2018-01-09 | 中建西部建设西南有限公司 | It is a kind of to improve and maintain the additive and preparation method of pervious concrete workability |
-
2018
- 2018-07-11 CN CN201810756675.7A patent/CN108585696A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235267A (en) * | 2007-01-31 | 2008-08-06 | 天津科技大学 | Method for preparing heterogeneous water evaporation inhibitor |
| CN101293763A (en) * | 2008-06-26 | 2008-10-29 | 河南国基建设集团有限公司 | Water permeable concrete and pavement construction method |
| CN107337375A (en) * | 2016-12-07 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of concrete admixture and use a kind of its premixing pervious concrete |
| CN107555835A (en) * | 2017-09-08 | 2018-01-09 | 中建西部建设西南有限公司 | It is a kind of to improve and maintain the additive and preparation method of pervious concrete workability |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825390A (en) * | 2020-06-18 | 2020-10-27 | 东莞市冠峰混凝土有限公司 | Self-curing concrete |
| CN113511858A (en) * | 2021-05-14 | 2021-10-19 | 广东汇强外加剂有限公司 | Preparation and construction method of pervious concrete |
| CN113683359A (en) * | 2021-08-10 | 2021-11-23 | 北京科技大学 | Preparation method of permeable concrete with all-iron tailing and waste rock aggregate |
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Application publication date: 20180928 |