CN110218048A - Pervious concrete - Google Patents
Pervious concrete Download PDFInfo
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- CN110218048A CN110218048A CN201910512209.9A CN201910512209A CN110218048A CN 110218048 A CN110218048 A CN 110218048A CN 201910512209 A CN201910512209 A CN 201910512209A CN 110218048 A CN110218048 A CN 110218048A
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2023—Resistance against alkali-aggregate reaction
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to concrete fields to provide a kind of pervious concrete aiming at the problem that pervious concrete is easy to appear accumulation of salt in the surface soil phenomenon, the component including following mass fraction: 15-20 parts of water；25-40 parts of portland cement；7-9 parts of agstone；4-6 parts of flyash；60-75 parts of sand；100-105 parts of stone；1-2 parts of casein；0.5-1 parts of fatty alcohol polyoxyethylene ether；0.1-0.5 parts of ethylene-vinyl acetate copolymer.By the way that casein is added, be conducive to casein in conjunction with the metal ion in pervious concrete to form compound, so that the metal ion in pervious concrete is not easy in conjunction with the hydroxide ion of hydrolyzed silicate formation to form hydroxide, so that pervious concrete is not easy accumulation of salt in the surface soil phenomenon occur.
Description
Technical field
The present invention relates to concrete fields, more specifically, it relates to a kind of pervious concrete.
Background technique
Pervious concrete is also known as celluar concrete, non-fine concrete, permeable terrace, is by aggregate, cement, reinforcing agent and water
A kind of porous light concrete made of mixing, it is free of fine aggregate.
The cement generally used in pervious concrete is portland cement, and portland cement encounters water, silicate ion
It is easy to happen hydrolysis, the hydroxyl of generation lesser hydroxide of solubility easy to form in conjunction with metal ion works as chance
When increasing to temperature, vapor is easy evaporation, so that hydroxide is precipitated from concrete, accumulation of salt in the surface soil phenomenon occurs.Due to permeable
Concrete almost sticks for a long time water, so that pervious concrete is easier accumulation of salt in the surface soil phenomenon occur, therefore, still has improved
Space.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of pervious concrete, has and be not easy
There is the advantages of accumulation of salt in the surface soil phenomenon.
To achieve the above object, the present invention provides the following technical scheme that
A kind of pervious concrete, the component including following mass fraction:
15-20 parts of water；
25-40 parts of portland cement；
7-9 parts of agstone；
4-6 parts of flyash；
60-75 parts of sand；
100-105 parts of stone；
1-2 parts of casein；
0.5-1 parts of fatty alcohol polyoxyethylene ether；
0.1-0.5 parts of ethylene-vinyl acetate copolymer.
By adopting the above technical scheme, by the way that casein is added, be conducive to the metal ion in casein and pervious concrete
In conjunction with to form compound, so that the metal ion in pervious concrete is not easy the hydroxyl formed with hydrolyzed silicate
Ions binding is to form hydroxide, so that pervious concrete is not easy accumulation of salt in the surface soil phenomenon occur；It is main due to lime stone
Ingredient is calcium carbonate, and the main component of portland cement is calcium silicates, and the binding force of casein and calcium ion is especially strong, to have
It is crosslinked conducive to casein and lime stone and the mutual of portland cement to combine, meanwhile, portland cement and pervious concrete
In other components compatibility it is splendid, pervious concrete be mainly pass through portland cement by each component bonding get up, from
And be conducive to enhance the compatibility of the other components of casein and pervious concrete, so that pervious concrete is more stable；In addition,
It is crosslinked combination mutually by casein and lime stone and portland cement, is conducive to the formation of intermolecular cross-linked network, into
And be conducive to enhance the compression strength of pervious concrete, so that pervious concrete is not easily susceptible to cracking when being pressurized；In addition, by adding
Enter ethylene-vinyl acetate copolymer and fatty alcohol polyoxyethylene ether and the mutual coordinated of casein, aliphatic alcohol polyethenoxy
Ether and casein and ethylene-vinyl acetate copolymer all have good compatibility, to be conducive to casein and fatty alcohol
It is preferably compatible, so that casein is easier to infiltrate into pervious concrete with fatty alcohol polyoxyethylene ether, so that junket egg
It is white in pervious concrete it is middle distribution it is more uniform, and then be conducive to casein preferably with the metal ion in pervious concrete
In conjunction with so that casein can play a role, and then advantageously reduce when moisture penetration to any position of pervious concrete
There is the case where accumulation of salt in the surface soil phenomenon in water coagulation soil.
The present invention is further arranged to: further include the component of following mass fraction:
0.1-0.3 parts of water-reducing agent.
By adopting the above technical scheme, by the way that water-reducing agent is added, be conducive to improve point of the cement granules in pervious concrete
Uniformity is dissipated, so that each component in pervious concrete is easier to be uniformly mixed with cement mixing, while advantageously reducing unit
Water consumption or unit cement consumption are conducive to economize on resources.
The present invention is further arranged to: the water-reducing agent is the horizontal sour calcium of lignin.
By adopting the above technical scheme, be conducive in the horizontal sour calcium of lignin by using the horizontal sour calcium of lignin as water-reducing agent
Calcium ion and casein combination so that the compatibility of the horizontal sour calcium of lignin and casein is more preferable, so that lignin is horizontal
Sour calcium is easier to be uniformly distributed in pervious concrete together with casein, and then is conducive to the horizontal sour calcium of lignin and preferably plays
It is acted on；Meanwhile so that the calcium ion in pervious concrete is more not easy to tie mutually with the hydroxyl that hydrolyzed silicate generates
It closes, and then advantageously reduces pervious concrete and the case where accumulation of salt in the surface soil phenomenon occur.
The present invention is further arranged to: further include the component of following mass fraction:
0.5-0.8 parts of walnut shell powder.
By adopting the above technical scheme, since the loose honeycomb of pervious concrete may resist pervious concrete
Compressive Strength impacts, and by the way that walnut shell powder is added, is conducive to the compression strength for enhancing pervious concrete, so that pervious concrete
It is not easily susceptible to cracking when being under pressure；Meanwhile being conducive to enhance the uv resistance energy of pervious concrete, so that pervious concrete is not
It is easy to be conducive to extend the service life of pervious concrete by illumination or the corrosion of ultraviolet light.
The present invention is further arranged to: the partial size of the walnut shell powder is 5-7mm.
By adopting the above technical scheme, by using partial size be 5-7mm walnut shell powder, be conducive to walnut shell powder preferably with
Other components in pervious concrete are uniformly mixed mutually, to be conducive to improve distribution of the walnut shell powder in pervious concrete
Uniformity, and then be conducive to walnut shell powder and preferably play a role, so that the compression strength of pervious concrete is more preferable, so that permeable
Concrete is more not easily susceptible to cracking when being under pressure.
The present invention is further arranged to: further include the component of following mass fraction:
0.3-0.5 parts of waste and old rubber particle.
By adopting the above technical scheme, by addition waste and old rubber particle, be conducive to the elasticity for enhancing pervious concrete, thus
The compression strength for being conducive to enhance pervious concrete, so that certain elastic shape can occur when being under pressure for pervious concrete
Become, so that pervious concrete is not easily susceptible to cracking when being under pressure；Meanwhile by using waste and old rubber particle, be conducive to
Waste recycles, and is conducive to economize on resources, is beneficial to energy conservation environmental protection.
The present invention is further arranged to: further include the component of following mass fraction:
0.5-0.8 parts of silane coupling agent.
By adopting the above technical scheme, by the way that silane coupling agent is added, be conducive to enhance the organic component in pervious concrete
Compatibility between inorganic component, so that each component of pervious concrete is more easier mutually during being stirred
It is mutually uniformly dispersed, and then is conducive to improve the stability of pervious concrete.
The present invention is further arranged to: further include the component of following mass fraction:
0.3-0.5 parts of rosin glycerides.
By adopting the above technical scheme, by the way that rosin glycerides are added, each component for being conducive to pervious concrete is preferably mutual
It is bonding together, be conducive to improve pervious concrete each component compatibility so that each component of pervious concrete is more
It is easy to be uniformly dispersed mutually；Meanwhile the main component of rosin glycerides is abietic acid glyceryl ester, there are also a small amount of two glycerol of abietic acid
Ester and monoglyceride, the strand of abietic acid glyceryl ester, two glyceride of abietic acid and monoglyceride are the long alkane containing ester group
Hydrocarbon, ester group and long chain alkane are hydrophobic group, to be conducive to enhance the waterproofness on the surface of pervious concrete, so that logical
It crosses pervious concrete to be not easy to infiltrate into the inside of pervious concrete, and then advantageously reduces the appearance of accumulation of salt in the surface soil phenomenon.
In conclusion the invention has the following advantages:
1. it is compound to be formed in conjunction with the metal ion in pervious concrete to be conducive to casein by the way that casein is added
Object, so that the metal ion in pervious concrete is not easy in conjunction with the hydroxide ion that hydrolyzed silicate is formed to form hydrogen-oxygen
Compound, so that pervious concrete is not easy accumulation of salt in the surface soil phenomenon occur；
2. the calcium binding in casein and lime stone and portland cement, is conducive to intermolecular mutual crosslinking,
Portland cement and the compatibility of the other components in pervious concrete are splendid, to be conducive to enhance casein and permeable coagulation
The compatibility of the other components of soil, so that pervious concrete is more stable；
3. being crosslinked combination mutually by casein and lime stone and portland cement, be conducive to intermolecular cross-linked network
Formation, be conducive to enhance pervious concrete compression strength so that pervious concrete be pressurized when be not easily susceptible to cracking；
4. cooperateing with mutually and matching with casein by the way that ethylene-vinyl acetate copolymer and fatty alcohol polyoxyethylene ether is added
It closes, fatty alcohol polyoxyethylene ether and casein and ethylene-vinyl acetate copolymer all have good compatibility, are conducive to junket
Albumen is preferably compatible with fatty alcohol, so that casein is easier to infiltrate into pervious concrete with fatty alcohol polyoxyethylene ether,
Be conducive to casein preferably in conjunction with the metal ion in pervious concrete, so that moisture penetration is any to pervious concrete
Position, casein can play a role, and then advantageously reduce pervious concrete and the case where accumulation of salt in the surface soil phenomenon occur.
Specific embodiment
With reference to embodiments, invention is further described in detail.
In following embodiment, portland cement uses the Wa stone P.O42.5 portland cement of Wuhan Yangluo cement plant production.
In following embodiment, agstone uses the granularity of Shi Bang industrial technology Group Plc for 325 purposes
Agstone.
In following embodiment, flyash flies the flyash of Chemical Co., Ltd. using long Xinghua.
In following embodiment, sand uses the Mo Laisha of Lingshou County Bo Sheng mineral products processing factory.
In following embodiment, the basalt of Shi Caiyong Zhangpu County Hong Sheng stone material Co., Ltd.
In following embodiment, casein uses the casein of Shandong De Jia Biotechnology Co., Ltd.
In following embodiment, fatty alcohol polyoxyethylene ether uses the model AEO-9 of Nantong MICHAEL DRAKE Chemical Co., Ltd.
Fatty alcohol polyoxyethylene ether.
In following embodiment, ethylene-vinyl acetate copolymer is the second Warburg Pincus 700HV that vinyl acetate content is 70%.
In following embodiment, water-reducing agent uses the lignin of the model X-N-1 of Langfang Chen Kun chemical building material Co., Ltd
Horizontal acid calcium.
In following embodiment, walnut shell powder uses the walnut shell powder of Shijiazhuang Bao environmental protection technology Co., Ltd.
In following embodiment, silane coupling agent uses the silicon of the model 174 of Dongguan City Ding Hai plastic cement Chemical Co., Ltd.
Alkane coupling agent kh-570.
In following embodiment, rosin glycerides use the rosin glycerides of the more Biotechnology Co., Ltd in Hebei Cologne.
Embodiment 1
A kind of pervious concrete, the component including following mass fraction:
Water 15kg；Portland cement 40kg；Agstone 8kg；Flyash 5kg；Sand 67.5kg；Stone 100kg；Casein
1kg；Fatty alcohol polyoxyethylene ether 0.5kg；Ethylene-vinyl acetate copolymer 0.1kg.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 40kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, addition water 15kg, casein 1kg, fatty alcohol polyoxyethylene ether 0.5kg, ethene-vinyl acetate are total while stirring
Polymers 0.1kg after being uniformly mixed, obtains pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 8kg, flyash 5kg, sand 67.5kg, stone
100kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Embodiment 2
A kind of pervious concrete, the component including following mass fraction:
Water 18kg；Portland cement 32.5kg；Agstone 9kg；Flyash 6kg；Sand 60kg；Stone 105kg；Casein
1.5kg；Fatty alcohol polyoxyethylene ether 1kg；Ethylene-vinyl acetate copolymer 0.5kg.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, be added portland cement 32.5kg, with the revolving speed of 150r/min into
Row stirring；
S2, addition water 18kg, casein 1.5kg, fatty alcohol polyoxyethylene ether 1kg, ethene-vinyl acetate are total while stirring
Polymers 0.5kg after being uniformly mixed, obtains pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 9kg, flyash 6kg, sand 60kg, stone
105kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Embodiment 3
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg；Casein 2kg；
Fatty alcohol polyoxyethylene ether 0.8kg；Ethylene-vinyl acetate copolymer 0.3kg.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, addition water 20kg, casein 2kg, fatty alcohol polyoxyethylene ether 0.8kg, ethene-vinyl acetate are total while stirring
Polymers 0.3kg after being uniformly mixed, obtains pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Embodiment 4
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg；Casein 2kg；
Fatty alcohol polyoxyethylene ether 0.8kg；Ethylene-vinyl acetate copolymer 0.3kg；Water-reducing agent 0.1kg；Walnut shell powder 0.8kg；It is waste and old
Rubber grain 0.4kg；Silane coupling agent 0.8kg；Rosin glycerides 0.3kg.
In the present embodiment, the partial size of walnut shell powder is 5mm.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, addition water 20kg, casein 2kg, fatty alcohol polyoxyethylene ether 0.8kg, ethene-vinyl acetate are total while stirring
Polymers 0.3kg, water-reducing agent 0.1kg, walnut shell powder 0.8kg, waste and old rubber particle 0.4kg, silane coupling agent 0.8kg, rosin are sweet
Grease 0.3kg after being uniformly mixed, obtains pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Embodiment 5
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg；Casein 2kg；
Fatty alcohol polyoxyethylene ether 0.8kg；Ethylene-vinyl acetate copolymer 0.3kg；Water-reducing agent 0.2kg；Walnut shell powder 0.5kg；It is waste and old
Rubber grain 0.5kg；Silane coupling agent 0.5kg；Rosin glycerides 0.4kg.
In the present embodiment, the partial size of walnut shell powder is 6mm.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, addition water 20kg, casein 2kg, fatty alcohol polyoxyethylene ether 0.8kg, ethene-vinyl acetate are total while stirring
Polymers 0.3kg, water-reducing agent 0.2kg, walnut shell powder 0.5kg, waste and old rubber particle 0.5kg, silane coupling agent 0.5kg, rosin are sweet
Grease 0.4kg after being uniformly mixed, obtains pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Embodiment 6
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg；Casein 2kg；
Fatty alcohol polyoxyethylene ether 0.8kg；Ethylene-vinyl acetate copolymer 0.3kg；Water-reducing agent 0.3kg；Walnut shell powder 0.6kg；It is waste and old
Rubber grain 0.3kg；Silane coupling agent 0.7kg；Rosin glycerides 0.5kg.
In the present embodiment, the partial size of walnut shell powder is 7mm.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, addition water 20kg, casein 2kg, fatty alcohol polyoxyethylene ether 0.8kg, ethene-vinyl acetate are total while stirring
Polymers 0.3kg, water-reducing agent 0.3kg, walnut shell powder 0.6kg, waste and old rubber particle 0.3kg, silane coupling agent 0.7kg, rosin are sweet
Grease 0.5kg after being uniformly mixed, obtains pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Comparative example 1
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, water 20kg is added while stirring, after being uniformly mixed, obtains pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Comparative example 2
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg；Fatty alcohol polyoxy
Vinethene 0.8kg；Ethylene-vinyl acetate copolymer 0.3kg.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, water 20kg, fatty alcohol polyoxyethylene ether 0.8kg, ethylene-vinyl acetate copolymer 0.3kg are added while stirring,
After being uniformly mixed, pre-composition is obtained；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Comparative example 3
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg；Casein 2kg；
Ethylene-vinyl acetate copolymer 0.3kg.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, water 20kg, casein 2kg, ethylene-vinyl acetate copolymer 0.3kg are added while stirring, are uniformly mixed
Afterwards, pre-composition is obtained；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Comparative example 4
A kind of pervious concrete, the component including following mass fraction:
Water 20kg；Portland cement 25kg；Agstone 7kg；Flyash 4kg；Sand 75kg；Stone 102kg；Casein 2kg；
Fatty alcohol polyoxyethylene ether 0.8kg.
Pervious concrete the preparation method is as follows:
S1, in cement mixer, under normal temperature condition, portland cement 25kg is added, is carried out with the revolving speed of 150r/min
Stirring；
S2, water 20kg, casein 2kg, fatty alcohol polyoxyethylene ether 0.8kg are added while stirring, after being uniformly mixed,
Obtain pre-composition；
S3, in sandstone blender, under normal temperature condition, be added agstone 7kg, flyash 4kg, sand 75kg, stone
102kg is stirred with the revolving speed of 180r/min, obtains aggregate after mixing evenly；
S4, in concrete mixer, under normal temperature condition, pre-composition and aggregate is added, with the revolving speed of 180r/min into
Row stirring, paves rapidly after mixing evenly to construction surface, forms molding pervious concrete after conserving.
Experiment 1
Above embodiments and comparative example are prepared resulting pervious concrete to pour into the template of 3cm*3cm*5cm,
And the square brick of 3cm*3cm*5cm is formed through conserving, then square brick is placed in container, tap water is added in a reservoir, so that originally
The liquid level of water impregnates square brick just, so that liquid level is exposed on the surface that square brick is placed in top, observes and records and accumulation of salt in the surface soil phenomenon occurs
Time (day).
Experiment 2
The 28d of pervious concrete is detected according to GB/T50081-2002 " standard for test methods of mechanical properties of ordinary concrete "
Compression strength (MPa).
Experiment 3
It is detected according to GB/T25993-2010 " standard water-permeable cement concrete coefficient of permeability experimental rig specification " permeable
The coefficient of permeability (mm/s) of concrete.
The above experimental data is shown in Table 1.
Table 1
It can be obtained according to the data comparison of embodiment 1-3 in table 1 and comparative example 1-4, junket egg has been all made of in embodiment 1-3
White, fatty alcohol polyoxyethylene ether and ethylene-vinyl acetate copolymer cooperate jointly to prepare pervious concrete, in comparative example 1
Any component in casein, fatty alcohol polyoxyethylene ether and ethylene-vinyl acetate copolymer is not added, is lacked in comparative example 2
Component casein is lacked, component fatty alcohol polyoxyethylene ether has been lacked in comparative example 3, component ethylene-vinegar has been lacked in comparative example 4
Sour ethylene copolymer, and the accumulation of salt in the surface soil time of embodiment 1-3 is longer than comparative example 1-4, and the 28d compression strength of embodiment 1-3
It is above comparative example 1-4, is illustrated by using casein, fatty alcohol polyoxyethylene ether and ethylene-vinyl acetate copolymer
For coordinated to prepare pervious concrete, casein can form compound in conjunction with the metal ion in pervious concrete, thus
So that metal ion is not easy to form hydroxide with the hydroxyl that hydrolyzed silicate is formed, and then it is conducive to extend permeable coagulation
There is the time of accumulation of salt in the surface soil phenomenon in soil；Meanwhile by the agstone and portland cement in casein and pervious concrete
Calcium binding, be conducive to intermolecular formation cross-linked network, thus be conducive to enhance pervious concrete compression strength so that
Pervious concrete is not easily susceptible to cracking when being under pressure；In addition, ethylene-vinyl acetate copolymer and casein and poly alkyl alcohol
Ethylene oxide ether all has good compatibility, is coupled casein and fatty alcohol polyoxy second by ethylene-vinyl acetate copolymer
Alkene ether so that casein is easier to infiltrate into inside pervious concrete, and then is conducive to casein preferably in pervious concrete
In be uniformly dispersed so that casein and the metal ion of any position in pervious concrete are combinable, so that permeable mixed
Solidifying soil is more not easy accumulation of salt in the surface soil phenomenon occur, is conducive to extend the time that accumulation of salt in the surface soil phenomenon occurs in pervious concrete.
It can be obtained according to the data comparison of embodiment 1-3 in table 1 and embodiment 4-6, embodiment 4-6 is newer than in embodiment 1-3
Increase water-reducing agent, walnut shell powder, waste and old rubber particle, silane coupling agent and rosin glycerides, and when the accumulation of salt in the surface soil of embodiment 4-6
Between be longer than embodiment 1-3 to a certain extent, and the 28d compression strength of embodiment 4-6 be higher than to a certain extent it is real
A 1-3 is applied, is illustrated by the way that water-reducing agent, walnut shell powder, waste and old rubber particle, silane coupling agent and rosin glycerides are added,
The anti-accumulation of salt in the surface soil performance and strength character for being conducive to improve pervious concrete to a certain extent, so that pervious concrete is more not
It is easy to appear accumulation of salt in the surface soil phenomenon, while pervious concrete is more not easily susceptible to cracking when being under pressure.
It can be obtained according to the data comparison of embodiment 1-6 in table 1 and comparative example 1, the coefficient of permeability and comparative example of embodiment 1-6
1 it is close, illustrate by the way that casein is added, fatty alcohol polyoxyethylene ether and ethylene-vinyl acetate copolymer cooperate with match mutually
It closes to prepare pervious concrete, so that pervious concrete is not easy to occur making the permeable of pervious concrete while accumulation of salt in the surface soil phenomenon
Performance is not readily susceptible to influence.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of pervious concrete, it is characterized in that: including the component of following mass fraction:
15-20 parts of water；
25-40 parts of portland cement；
7-9 parts of agstone；
4-6 parts of flyash；
60-75 parts of sand；
100-105 parts of stone；
1-2 parts of casein；
0.5-1 parts of fatty alcohol polyoxyethylene ether；
0.1-0.5 parts of ethylene-vinyl acetate copolymer.
2. pervious concrete according to claim 1, it is characterized in that: further including the component of following mass fraction:
0.1-0.3 parts of water-reducing agent.
3. pervious concrete according to claim 2, it is characterized in that: the water-reducing agent is the horizontal sour calcium of lignin.
4. pervious concrete according to claim 1 to 3, it is characterized in that: further including the component of following mass fraction:
0.5-0.8 parts of walnut shell powder.
5. pervious concrete according to claim 5, it is characterized in that: the partial size of the walnut shell powder is 5-7mm.
6. pervious concrete according to claim 1 to 3, it is characterized in that: further including the component of following mass fraction:
0.3-0.5 parts of waste and old rubber particle.
7. pervious concrete according to claim 1 to 3, it is characterized in that: further including the component of following mass fraction:
0.5-0.8 parts of silane coupling agent.
8. pervious concrete according to claim 1 to 3, it is characterized in that: further including the component of following mass fraction:
0.3-0.5 parts of rosin glycerides.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910512209.9A CN110218048A (en) | 2019-06-13 | 2019-06-13 | Pervious concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910512209.9A CN110218048A (en) | 2019-06-13 | 2019-06-13 | Pervious concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528490A (en) * | 2019-09-19 | 2019-12-03 | 广州铭汇建设工程有限公司 | Treatment Methods of Soft Ground |
| CN110563404A (en) * | 2019-09-19 | 2019-12-13 | 中地国际工程有限公司 | Construction method of support base stone |
| CN112456913A (en) * | 2020-12-08 | 2021-03-09 | 成都精准混凝土有限公司 | Biocompatible concrete and preparation method and application thereof |
-
2019
- 2019-06-13 CN CN201910512209.9A patent/CN110218048A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528490A (en) * | 2019-09-19 | 2019-12-03 | 广州铭汇建设工程有限公司 | Treatment Methods of Soft Ground |
| CN110563404A (en) * | 2019-09-19 | 2019-12-13 | 中地国际工程有限公司 | Construction method of support base stone |
| CN112456913A (en) * | 2020-12-08 | 2021-03-09 | 成都精准混凝土有限公司 | Biocompatible concrete and preparation method and application thereof |
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Application publication date: 20190910 |