CN106892618A - 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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- CN106892618A CN106892618A CN201710161317.7A CN201710161317A CN106892618A CN 106892618 A CN106892618 A CN 106892618A CN 201710161317 A CN201710161317 A CN 201710161317A CN 106892618 A CN106892618 A CN 106892618A
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- pervious concrete
- high intensity
- water
- weight portion
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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
-
- 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
- C04B2111/40—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
Abstract
The invention belongs to road pavement field of material technology, a kind of high intensity pervious concrete and preparation method thereof is disclosed, the pervious concrete includes the raw material of following weight portion：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, rupture strength reaches 3MPa, coefficient of permeability reaches more than 5mm/s, disclosure satisfy that 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, more particularly to a kind of high intensity pervious concrete and its preparation side
Method.
Background technology
With the development and the continuous improvement of the level of urbanization of social economy, increasing urban surface is progressively 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
The ability of heat and infiltration rainwater is received, causes rainwater to permeate the ground, road surface forms substantial amounts of ponding and influence 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, with water penetration and gas permeability, mainly by aggregate, cement, additive, water etc. by specific
A kind of celluar concrete that technique is processed, while Pavement Condition requirement is met, can realize its structural porous and
Continuous the characteristics of, make it have good water penetration.When rainfall is concentrated, rainwater can in time be penetrated into by interconnected pore
Underground, reaches the purpose of rapid draining and recharge of groundwater resource, is equipped with corresponding rainwater-collecting facility, can also save water money
Source.
But pervious concrete low intensity in the market, it is impossible to meet the requirement on laying high-performance road surface；Coefficient of permeability
Relatively low, general its coefficient of permeability is less than 10mm/s, it is impossible to meets the requirement of rainwater season draining, easily causes excess surface water phenomenon
Generation；In addition, common pervious concrete weatherability is poor, freezing-thawing resistance is low, easily produces freeze-thaw damage, seriously hinders permeable
The application development of concrete.
The content of the invention
The technical problem to be solved in the present invention is to overcome drawbacks described above, there is provided a kind of high intensity pervious concrete and its preparation
Method.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of high intensity pervious concrete, including following weight portion raw material：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 intensity pervious concrete includes the raw material of following weight portion：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, and bulk density is 1493kg/m3, apparent density is 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 from.
Preferably, mass percent shared by each raw material is in the water absorbent gel：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 weight portion：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 method of high intensity pervious concrete, comprise the following steps：
(1) cement of above-mentioned weight portion, rubble, middle sand are placed in 10~15min of mixing in concrete mixer；
(2) water of above-mentioned weight portion, polycarboxylic acids, soluble starch are mixed, is then added to step (1) gained mixed
10~15min of mixing is stirred in compound；
(3) calcium hydroxide of above-mentioned weight portion, water absorbent gel, nano calcium oxide, swelling agent are added into step (2) gained mixing
Continue to stir 5~15min in thing, then vibrated, suppressed, obtain final product the high intensity pervious concrete.
Compared with prior art the beneficial effects of the invention are as follows：
The present invention selects the suitable ratio of mud, improves the packing 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；Rubble, the middle sand compared with small particle are selected, hole is formed with coarse aggregate is combined into cement, increase the water penetration of concrete；Add
With soluble starch and water absorbent gel, be uniformly filled in the space of coarse aggregate formation, with soluble starch gradually degraded,
Dissolve and be lost in, formed in concrete completely through fine porous micropore, not only ensure that the intensity of concrete, wear-resisting
Property, and with porous；The swelling agent of addition has automatic expansion and contractile function simultaneously, and has with coarse-fine aggregate good
Good cementability, is obtained in that the pervious concrete of high intensity, high-wearing feature, high water-permeability.
The high intensity pervious concrete that the present invention is provided, by rational proportioning, preferably goes out the permeable coagulation of suitable high intensity
Native subtracts various raw material types and consumption, 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 rupture strength reaches 3MPa, and coefficient of permeability reaches more than 5mm/s, 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 embodiment of the invention is described further below.Herein it should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but does not constitute limitation of the invention.Additionally, invention described below
As long as involved technical characteristic does not constitute conflict and can just be mutually combined each other in each implementation method.
Embodiment 1
A kind of high intensity pervious concrete, consisting of：100 parts of P.O52.5 cement, particle diameter be 300 parts of 5mm rubbles, 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 by the following raw material：Polyacrylic resin 10%, carboxymethylcellulose calcium
Sodium 40%, esterification starch 25%, silica 20%, initiator 4%, crosslinking agent 1%；Swelling agent includes the original of following weight portion
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.
The preparation method of the high intensity pervious concrete is：
(1) cement of above-mentioned weight portion, rubble, middle sand are placed in and 10min is mixed in concrete mixer；
(2) water of above-mentioned weight portion, polycarboxylic acids, soluble starch are mixed, is then added to step (1) gained mixed
Mixing 15min is stirred in compound；
(3) calcium hydroxide of above-mentioned weight portion, water absorbent gel, nano calcium oxide, swelling agent are added into step (2) gained mixing
Continue to stir 5min in thing, then vibrated, suppressed, obtain final product the high intensity pervious concrete.
Embodiment 2
A kind of high intensity pervious concrete, consisting of：100 parts of P.O52.5 cement, particle diameter be 400 parts of 10mm rubbles, 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 by the following raw material：Polyacrylic resin 13%, sodium carboxymethylcellulose
50%th, esterification starch 20%, silica 1 5%, initiator 1.5%, crosslinking agent 0.5%；Swelling agent includes following weight portion
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.
The preparation method of the high intensity pervious concrete is：
(1) cement of above-mentioned weight portion, rubble, middle sand are placed in and 15min is mixed in concrete mixer；
(2) water of above-mentioned weight portion, polycarboxylic acids, soluble starch are mixed, is then added to step (1) gained mixed
Mixing 10min is stirred in compound；
(3) calcium hydroxide of above-mentioned weight portion, water absorbent gel, nano calcium oxide, swelling agent are added into step (2) gained mixing
Continue to stir 10min in thing, then vibrated, suppressed, obtain final product the high intensity pervious concrete.
Embodiment 3
A kind of high intensity pervious concrete, consisting of：100~150 parts of P.O52.5 cement, particle diameter are 5mm rubbles 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 from：Polyacrylic resin 25%, sodium carboxymethylcellulose 30%, esterification starch 24%, silica 1 5%, initiation
Agent 5%, crosslinking agent 1%；Swelling agent includes the raw material of following weight portion：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.
The preparation method of the high intensity pervious concrete is：
(1) cement of above-mentioned weight portion, rubble, middle sand are placed in and 10min is mixed in concrete mixer；
(2) water of above-mentioned weight portion, polycarboxylic acids, soluble starch are mixed, is then added to step (1) gained mixed
Mixing 10min is stirred in compound；
(3) calcium hydroxide of above-mentioned weight portion, water absorbent gel, nano calcium oxide, swelling agent are added into step (2) gained mixing
Continue to stir 15min in thing, then vibrated, suppressed, obtain final product the high intensity pervious concrete.
It is above present pre-ferred embodiments, is only applicable to help the principle for understanding the embodiment of the present invention；Simultaneously for this
The those skilled in the art in field, according to the present embodiment, will change in specific embodiment and range of application, comprehensive
Upper described, this specification content should not be construed as limiting the invention.
Claims (8)
1. a kind of high intensity pervious concrete, it is characterised in that：Raw material including following weight portion：It is 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.
2. high intensity pervious concrete according to claim 1, it is characterised in that：Raw material including following weight portion：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 and 2, it is characterised in that：The cement is P.O52.5 water
Mud.
4. high intensity pervious concrete according to claim 1 and 2, it is characterised in that：The ballast grain sizes be 5~
10mm, bulk density is 1493kg/m3, apparent density is 2710kg/m3, porosity is 45%.
5. high intensity pervious concrete according to claim 1 and 2, it is characterised in that：The water absorbent gel is by polypropylene
Acid resin, sodium carboxymethylcellulose, esterification starch, silica, crosslinking agent, initiator are prepared from.
6. high intensity pervious concrete according to claim 5, it is characterised in that：In the water absorbent gel shared by each raw material
Mass percent is：Polyacrylic resin 10~25%, sodium carboxymethylcellulose 30~50%, esterification starch 20~25%, two
Silica 15~20%, initiator 1~5%, crosslinking agent 0.5~1%.
7. high intensity pervious concrete according to claim 1 and 2, it is characterised in that：The swelling agent includes following weight
Measure the raw material of part：20~40 parts of expanded perlite, 20~30 parts of expanded graphite, 10~20 parts of calcium stearate, alunite 10~20
Part, 10~20 parts of nano barium titanate aluminum fiber.
8. the preparation method of the high intensity pervious concrete described in a kind of claim 1, it is characterised in that：Concretely comprise the following steps：
(1) cement of above-mentioned weight portion, rubble, middle sand are placed in 10~15min of mixing in concrete mixer；
(2) water of above-mentioned weight portion, polycarboxylic acids, soluble starch are mixed, is then added to step (1) gained mixture
10~15min of middle stirring mixing；
(3) by the calcium hydroxide of above-mentioned weight portion, water absorbent gel, nano calcium oxide, swelling agent addition step (2) gained mixture
Continue to stir 5~15min, then vibrated, suppressed, obtain final product the high intensity pervious concrete.
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Cited By (7)
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| CN108793887A (en) * | 2018-07-26 | 2018-11-13 | 上海石化安东混凝土有限公司 | A kind of mass 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 |
| 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 |
| CN109336441A (en) * | 2018-11-02 | 2019-02-15 | 嘉华特种水泥股份有限公司 | A kind of permeable aggregate and preparation method thereof for concrete |
| 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 |
| CN114262186A (en) * | 2021-11-19 | 2022-04-01 | 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793887A (en) * | 2018-07-26 | 2018-11-13 | 上海石化安东混凝土有限公司 | A kind of mass concrete and preparation method thereof |
| 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 |
| 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 |
| CN109336441A (en) * | 2018-11-02 | 2019-02-15 | 嘉华特种水泥股份有限公司 | A kind of permeable aggregate and preparation method thereof for concrete |
| 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 |
| CN114262186A (en) * | 2021-11-19 | 2022-04-01 | 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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| CN106892618B (en) | 2019-07-23 |
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