CN106892618B - A kind of high intensity pervious concrete and preparation method thereof - Google Patents
A kind of high intensity pervious concrete and preparation method thereof Download PDFInfo
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- CN106892618B CN106892618B CN201710161317.7A CN201710161317A CN106892618B CN 106892618 B CN106892618 B CN 106892618B CN 201710161317 A CN201710161317 A CN 201710161317A CN 106892618 B CN106892618 B CN 106892618B
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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
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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
- 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 invention belongs to road pavement field of material technology, a kind of high-intensitive pervious concrete and preparation method thereof is disclosed, which includes the raw material of following parts by weight: 100~150 parts of cement, 300~450 parts of rubble, 30~50 parts of middle sand, 40~60 parts of water, 3~10 parts of polycarboxylic acids, 2~8 parts of calcium hydroxide, 1~3 part of water absorbent gel, 0.5~2 part of soluble starch, 0.2~0.8 part of nano calcium oxide, 0.05~0.1 part of swelling agent.Pervious concrete workability of the invention is good, porosity is big, the wearability of pervious concrete of the present invention is good simultaneously, compression strength reaches 30MPa, flexural strength reaches 3MPa, coefficient of permeability reaches 5mm/s or more, can satisfy the various requirement of engineering for having permeable requirement for concrete, is conducive to maintaining ecological balance and realizes sustainable development.
Description
Technical field
The invention belongs to road pavement field of material technology, in particular to a kind of high-intensitive pervious concrete and its preparation side
Method.
Background technique
With the development of social economy and the continuous improvement of the level of urbanization, more and more urban surfaces are gradually by reinforcing bar
The building construction of concrete and fluid-tight road surface are covered.Compared with natural soil, concrete road surface lacks respiratory, inhales
It receives heat and permeates the ability of rainwater, cause rainwater that can not permeate the ground, road surface forms a large amount of ponding and influences Urban Underground
The supplement of water causes the destruction of ecological environment.
Pervious concrete is a kind of new concrete being born to make up the impermeability of normal concrete, belongs to ring
Guarantor's type, Ecotype Concrete material have water penetration and gas permeability, are mainly passed through by aggregate, cement, additive, water etc. specific
A kind of celluar concrete that technique is process, while meeting Pavement Condition requirement, be able to achieve its structural porous and
Continuous feature makes it have good water penetration.When concentrating rainfall, rainwater can be penetrated into time by interconnected pore
Underground achievees the purpose that draining and recharge of groundwater resource rapidly, is equipped with corresponding rainwater-collecting facility, can also save water money
Source.
But pervious concrete intensity currently on the market is low, is unable to satisfy the requirement for being laid with high-performance road surface；Coefficient of permeability
Lower, its general coefficient of permeability is lower than 10mm/s, is unable to satisfy the requirement of rainwater season draining, be easy to cause excess surface water phenomenon
Generation；In addition, common pervious concrete weatherability is poor, freezing-thawing resistance is low, is easy to produce freeze-thaw damage, seriously hinders permeable
The application development of concrete.
Summary of the invention
The technical problem to be solved by the present invention is to overcome drawbacks described above, a kind of high-intensitive pervious concrete and its preparation are provided
Method.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is as follows:
A kind of high intensity pervious concrete, the raw material including following parts by weight: 100~150 parts of cement, rubble 300~450
Part, 30~50 parts of middle sand, 40~60 parts of water, 3~10 parts of polycarboxylic acids, 2~8 parts of calcium hydroxide, 1~3 part of water absorbent gel, soluble shallow lake
0.5~2 part of powder, 0.2~0.8 part of nano calcium oxide, 0.05~0.1 part of swelling agent
Preferably, the high-intensitive pervious concrete includes the raw material of following parts by weight: 100 parts of cement, 400 parts of rubble,
30 parts of middle sand, 50 parts of water, 5 parts of polycarboxylic acids, 5 parts of calcium hydroxide, 2 parts of water absorbent gel, 1 part of soluble starch, nano calcium oxide 0.6
Part, 0.1 part of swelling agent.
Preferably, the cement is P.O52.5 cement.
Preferably, the ballast grain sizes are 5~10mm, bulk density 1493kg/m3, apparent density 2710kg/m3,
Porosity is 45%.
Preferably, the water absorbent gel is by polyacrylic resin, sodium carboxymethylcellulose, esterification starch, silica, friendship
Connection agent, initiator are prepared.
Preferably, mass percent shared by each raw material in the water absorbent gel are as follows: polyacrylic resin 10~25%, carboxylic first
Base sodium cellulosate 30~50%, esterification starch 20~25%, silica 1 5~20%, initiator 1~5%, crosslinking agent 0.5~
1%.
Preferably, the swelling agent includes the raw material of following parts by weight: 20~40 parts of expanded perlite, expanded graphite 20~
30 parts, 10~20 parts of calcium stearate, 10~20 parts of alunite, 10~20 parts of nano barium titanate aluminum fiber.
It is a further object of the present invention to provide a kind of preparation methods of high-intensitive pervious concrete, include the following steps:
(1) cement of above-mentioned parts by weight, rubble, middle sand are placed in 10~15min of mixing in concrete mixer；
(2) water, polycarboxylic acids, soluble starch of above-mentioned parts by weight are mixed, are then added to mixed obtained by step (1)
It closes in object and is stirred 10~15min；
(3) mixing obtained by step (2) is added in the calcium hydroxide of above-mentioned parts by weight, water absorbent gel, nano calcium oxide, swelling agent
Continue 5~15min of stirring in object, is then vibrated, suppressed to get the high-intensitive pervious concrete.
Compared with prior art the beneficial effects of the present invention are:
The present invention selects the suitable ratio of mud, improves the compactness and intensity of concrete, adds polycarboxylate water-reducer, a side
Face can reduce water consumption, improve the uniformity of cement slurry microstructure, on the other hand improve the work of permeable concrete
Property；Selection forms hole with coarse aggregate is combined into compared with the rubble of small particle, middle sand, with cement, increases the water penetration of concrete；Add
Add soluble starch and water absorbent gel, be uniformly filled in coarse aggregate formation gap in, with the gradually degradation of soluble starch,
Dissolve and be lost, formed in concrete completely through fine porous micropore, not only ensure that the intensity, wear-resisting of concrete
Property, and there is porous；The swelling agent of addition has automatic expansion and contractile function simultaneously, and with coarse-fine aggregate with good
Good cementability, can obtain high intensity, high-wearing feature, high water-permeability pervious concrete.
High intensity pervious concrete provided by the invention preferably goes out by reasonably matching and is suitble to high-intensitive permeable coagulation
Soil subtracts various raw material types and dosage, and gained pervious concrete workability is good, and porosity is big, while the present invention is permeable mixed
The wearability for coagulating soil is good, and compression strength reaches 30MPa, and flexural strength reaches 3MPa, and coefficient of permeability reaches 5mm/s or more, can
Meet the various requirement of engineering for having permeable requirement for concrete, can be widely used for super expressway, urban road, garden path,
There are the engineering and road of permeable requirement in pavement, parking lot, park etc., are conducive to maintaining ecological balance and realize sustainable development
Exhibition.
Specific embodiment
Specific embodiments of the present invention will be further explained below.It should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, invention described below
Technical characteristic involved in each embodiment can be combined with each other as long as they do not conflict with each other.
Embodiment 1
It is a kind of high intensity pervious concrete, consisting of: 100 parts of P.O52.5 cement, partial size be 300 parts of 5mm rubble, in
30 parts of sand, 40 parts of water, 3 parts of polycarboxylic acids, 2 parts of calcium hydroxide, 1 part of water absorbent gel, 0.5 part of soluble starch, nano calcium oxide 0.2
Part, 0.05 part of swelling agent；Wherein, water absorbent gel is prepared from the following raw materials: polyacrylic resin 10%, carboxymethyl cellulose
Sodium 40%, esterification starch 25%, silica 20%, initiator 4%, crosslinking agent 1%；Swelling agent includes the original of following parts by weight
Material: 20 parts of expanded perlite, 30 parts of expanded graphite, 10 parts of calcium stearate, 20 parts of alunite, 20 parts of nano barium titanate aluminum fiber.
It is described high intensity pervious concrete the preparation method comprises the following steps:
(1) cement of above-mentioned parts by weight, rubble, middle sand are placed in concrete mixer and 10min is mixed；
(2) water, polycarboxylic acids, soluble starch of above-mentioned parts by weight are mixed, are then added to mixed obtained by step (1)
It closes in object and is stirred 15min；
(3) mixing obtained by step (2) is added in the calcium hydroxide of above-mentioned parts by weight, water absorbent gel, nano calcium oxide, swelling agent
Continue to stir 5min in object, is then vibrated, suppressed to get the high-intensitive pervious concrete.
Embodiment 2
It is a kind of high intensity pervious concrete, consisting of: 100 parts of P.O52.5 cement, partial size be 400 parts of 10mm rubble, in
30 parts of sand, 50 parts of water, 5 parts of polycarboxylic acids, 5 parts of calcium hydroxide, 2 parts of water absorbent gel, 1 part of soluble starch, 0.6 part of nano calcium oxide,
0.1 part of swelling agent；Wherein, water absorbent gel is prepared from the following raw materials: polyacrylic resin 13%, sodium carboxymethylcellulose
50%, esterification starch 20%, silica 1 5%, initiator 1.5%, crosslinking agent 0.5%；Swelling agent includes following parts by weight
Raw material: 30 parts of expanded perlite, 25 parts of expanded graphite, 15 parts of calcium stearate, 15 parts of alunite, 15 parts of nano barium titanate aluminum fiber.
It is described high intensity pervious concrete the preparation method comprises the following steps:
(1) cement of above-mentioned parts by weight, rubble, middle sand are placed in concrete mixer and 15min is mixed；
(2) water, polycarboxylic acids, soluble starch of above-mentioned parts by weight are mixed, are then added to mixed obtained by step (1)
It closes in object and is stirred 10min；
(3) mixing obtained by step (2) is added in the calcium hydroxide of above-mentioned parts by weight, water absorbent gel, nano calcium oxide, swelling agent
Continue to stir 10min in object, is then vibrated, suppressed to get the high-intensitive pervious concrete.
Embodiment 3
A kind of high intensity pervious concrete, consisting of: 100~150 parts of P.O52.5 cement, partial size are 5mm rubble 300
~450 parts, 30~50 parts of middle sand, 40~60 parts of water, 3~10 parts of polycarboxylic acids, 2~8 parts of calcium hydroxide, 1~3 part of water absorbent gel, can
0.5~2 part of soluble starch, 0.2~0.8 part of nano calcium oxide, 0.05~0.1 part of swelling agent；Wherein, water absorbent gel is by following former
Material is prepared: polyacrylic resin 25%, esterification starch 24%, silica 1 5%, causes sodium carboxymethylcellulose 30%
Agent 5%, crosslinking agent 1%；Swelling agent includes the raw material of following parts by weight: 40 parts of expanded perlite, 20 parts of expanded graphite, stearic acid
20 parts of calcium, 10 parts of alunite, 10 parts of nano barium titanate aluminum fiber.
It is described high intensity pervious concrete the preparation method comprises the following steps:
(1) cement of above-mentioned parts by weight, rubble, middle sand are placed in concrete mixer and 10min is mixed；
(2) water, polycarboxylic acids, soluble starch of above-mentioned parts by weight are mixed, are then added to mixed obtained by step (1)
It closes in object and is stirred 10min；
(3) mixing obtained by step (2) is added in the calcium hydroxide of above-mentioned parts by weight, water absorbent gel, nano calcium oxide, swelling agent
Continue to stir 15min in object, is then vibrated, suppressed to get the high-intensitive pervious concrete.
The above are present pre-ferred embodiments, it is only applicable to the principle for helping to understand the embodiment of the present invention；Meanwhile for this
The those skilled in the art in field, according to the present embodiment, there will be changes in terms of specific embodiments and scope of application, comprehensive
Upper described, the contents of this specification are not to be construed as limiting the invention.
Claims (5)
1. a kind of high intensity pervious concrete, it is characterised in that: the raw material including following parts by weight: 100~150 parts of cement, broken
300~450 parts of stone, 30~50 parts of middle sand, 40~60 parts of water, 3~10 parts of polycarboxylic acids, 2~8 parts of calcium hydroxide, water absorbent gel 1~3
Part, 0.5~2 part of soluble starch, 0.2~0.8 part of nano calcium oxide, 0.05~0.1 part of swelling agent；The rubble bulk density
For 1493kg/m3, apparent density 2710kg/m3, porosity 45%；Water absorbent gel is by polyacrylic resin, carboxymethyl cellulose
Plain sodium, esterification starch, silica, crosslinking agent, initiator are prepared, wherein mass percent shared by each raw material are as follows: poly- third
Olefin(e) acid resin 10~25%, esterification starch 20~25%, silica 1 5~20%, draws sodium carboxymethylcellulose 30~50%
Send out agent 1~5%, crosslinking agent 0.5~1%；The swelling agent includes the raw material of following parts by weight: 20~40 parts of expanded perlite,
20~30 parts of expanded graphite, 10~20 parts of calcium stearate, 10~20 parts of alunite, 10~20 parts of nano barium titanate aluminum fiber.
2. high intensity pervious concrete according to claim 1, it is characterised in that: the raw material including following parts by weight: water
100 parts of mud, 400 parts of rubble, 30 parts of middle sand, 50 parts of water, 5 parts of polycarboxylic acids, 5 parts of calcium hydroxide, 2 parts of water absorbent gel, soluble starch 1
Part, 0.6 part of nano calcium oxide, 0.1 part of swelling agent.
3. high intensity pervious concrete according to claim 1 or 2, it is characterised in that: the cement is P.O52.5 water
Mud.
4. it is according to claim 1 or 2 high intensity pervious concrete, it is characterised in that: the ballast grain sizes be 5~
10mm。
5. high intensity pervious concrete according to claim 1, it is characterised in that: prepare gained by the following method:
(1) cement of above-mentioned parts by weight, rubble, middle sand are placed in 10~15min of mixing in concrete mixer；
(2) water, polycarboxylic acids, soluble starch of above-mentioned parts by weight are mixed, are then added to mixture obtained by step (1)
In be stirred 10~15min；
(3) calcium hydroxide of above-mentioned parts by weight, water absorbent gel, nano calcium oxide, swelling agent are added in mixture obtained by step (2)
Continue 5~15min of stirring, is then vibrated, suppressed to get the high-intensitive pervious concrete.
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| CN201710161317.7A CN106892618B (en) | 2017-03-17 | 2017-03-17 | A kind of high intensity pervious concrete and preparation method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793887B (en) * | 2018-07-26 | 2020-12-22 | 上海石化安东混凝土有限公司 | Large-volume concrete and preparation method thereof |
| CN109183558A (en) * | 2018-09-14 | 2019-01-11 | 北京城建十六建筑工程有限责任公司 | The preparation method and its construction method of a kind of pavement, its layered material |
| CN109336441B (en) * | 2018-11-02 | 2021-01-12 | 嘉华特种水泥股份有限公司 | Permeable aggregate for 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 |
| CN112159177A (en) * | 2020-09-30 | 2021-01-01 | 上海顺多防水工程有限公司 | High-strength pervious concrete and preparation method thereof |
| CN114262186B (en) * | 2021-11-19 | 2022-11-18 | 北京住总新型建材有限公司 | High-strength high-water-permeability pervious concrete and preparation method thereof |
| CN115572181A (en) * | 2022-10-21 | 2023-01-06 | 中铁第四勘察设计院集团有限公司 | Brittle concrete material, preparation method and application thereof |
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