CN105645855B - The preparation technology of Recycled aerated concrete prepared by road waste aggregate - Google Patents
The preparation technology of Recycled aerated concrete prepared by road waste aggregate Download PDFInfo
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- CN105645855B CN105645855B CN201610122913.XA CN201610122913A CN105645855B CN 105645855 B CN105645855 B CN 105645855B CN 201610122913 A CN201610122913 A CN 201610122913A CN 105645855 B CN105645855 B CN 105645855B
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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
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
- C04B20/1085—Waterglass
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
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- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of preparation technology of the Recycled aerated concrete prepared the invention discloses road waste aggregate, belongs to technical field of concrete, specific component and quality proportioning are：2~6 parts of 1000~1200 parts of regeneration aggregate, 500~600 parts of slag, 250~300 parts of cement, 2~6 parts of polypropylene film-fibre, 100 200 parts of sand, 150~200 parts of water and additive；Wherein, additive is made up of 10~15 parts of high efficiency water reducing agent, 10~15 parts of bentonite, 10~15 parts of caoutchouc latex, 10~15 parts of thin iron powder, 10~15 parts of organic flocculant.Celluar concrete prepared by the present invention both meets national requirements, also complies with the requirement of plant growth, can be widely applied to the both sides of road, while protection, for greening environment, is significant.
Description
It is the Application No. 2014101654953 submitted on April 24th, 2014, entitled one applying date that the application, which is,
Plant the divisional application of the celluar concrete of road waste aggregate preparation and the Chinese invention patent application of preparation technology.
Technical field
The present invention relates to a kind of celluar concrete and preparation technology, prepared by specifically a kind of road waste aggregate
The preparation technology of Recycled aerated concrete, belongs to technical field of concrete.
Background technology
With China's economic development, Process of Urbanization Construction is deepened continuously, and the road in city also in continuous extension and is rebuild, from
And generate a large amount of discarded concretes.Traditional processing method is landfill or stacked, and not only consumes substantial amounts of arable land and rubbish
Rubbish such as clears at the cost of erection, and causes very big pressure to environmental improvement.
It is many to be used using the aggregate that discarded concrete is directly used as into celluar concrete in order to mitigate above-mentioned pressure.
Celluar concrete is a kind of concrete with special pore structure, by specific level match somebody with somebody gather materials, the warp such as cement, water, additive
Special process is made.Celluar concrete must have good ventilative, water permeability, it is widely used in the road in city two
The positions such as side, river course slope protection, roof and parking lot, can occasionally play the damp and hot exchange capacity of raising, while reducing concrete material
Surface temperature etc. is acted on.
However, using discarded concrete as the aggregate of celluar concrete when, often there is aggregate low intensity, water absorption rate big
Problem, the problems such as direct utilization can cause celluar concrete low strength, shrink big, so as to not reach wanting for celluar concrete
Ask, have impact on it and normally use.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides regeneration prepared by a kind of road waste aggregate
The preparation technology of celluar concrete, discarded concrete can be recycled as aggregate prepare celluar concrete, while improving system
The performance and intensity of celluar concrete after standby, it is ensured that it is normally used.
To achieve these goals, the technical solution adopted by the present invention is：Prepared by a kind of road waste aggregate
Celluar concrete, specific component and quality proportioning are：1000~1200 parts of regeneration aggregate, 500~600 parts of slag, cement 250
2~6 parts of~300 parts, 2~6 parts of polypropylene film-fibre, 100-200 parts of sand, 150~200 parts of water and additive；Wherein, institute
The component and mass ratio of regeneration aggregate, slag and the cement stated are 4:2:1；Described polypropylene fibre and the group of additive
Divide and mass ratio is 1:1；Additive by 10~15 parts of high efficiency water reducing agent, 10~15 parts of bentonite, caoutchouc latex 10~
15 parts, 10~15 parts of thin iron powder, 10~15 parts of organic flocculant composition.
Further, specific component and quality proportioning are：1000 parts of regeneration aggregate, 500 parts of slag, 250 parts of cement, poly- third
4 parts of 4 parts of alkene film-fibre, 150 parts of sand, 150 parts of water and additive.
Further, specific component and quality proportioning are：1080 parts of regeneration aggregate, 540 parts of slag, 270 parts of cement, poly- third
5 parts of 5 parts of alkene film-fibre, 180 parts of sand, 180 parts of water and additive.
Further, specific component and quality proportioning are：1200 parts of regeneration aggregate, 600 parts of slag, 300 parts of cement, poly- third
6 parts of 6 parts of alkene film-fibre, 200 parts of sand, 200 parts of water and additive.
Further, in additive, described high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, You Jixu
The component and quality proportioning of solidifying agent are identical.
Further, in additive, described high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, You Jixu
Solidifying agent is 12 parts.
Further, in additive, described high efficiency water reducing agent is aliphatic high-efficiency water reducing agent.
The celluar concrete prepared for a kind of road waste aggregate set forth above, specific preparation technology is such as
Under：
（1）It is prepared by raw material：
1）The preparation of regeneration aggregate：From the discarded concrete after road reformation, it is exposed to the sun after 1-2 hours, makes in the sun
Manually or machinery hammering or cut；Crush after the particle for 45-60cm particle diameters, be exposed to the sun again after 1-2 hours, carry out secondary
Hammering is cut；
Crush after the particle for 30-40cm particle diameters, use level to match somebody with somebody and screened for 10~20 vibratory sieves, and gradually successively decreasing
Sieving time section in sieved 2-3 times；
After screening terminates, in the surface smear 15%-20% of regeneration aggregate water glass solution, and smear uniform, treat water glass
Glass solution completely into being dried and maintenance processing to behind regeneration aggregate inside, regeneration aggregate is transferred in hothouse,
Taken out after placing 10-15 days.
2）The preparation of slag：It is pre- using manually or mechanically carrying out by using vessel slag or open hearth slag as the slag of main component
After crushing, then toasted, stopped after it is completely dried, then by the slag steel of bulk in the slag of the vexed rear efflorescence of heat with
Slag is separated, and bulk slag steel magnetic separation is carried out first, and then slag extracts slag steel after multiple stage crushing screening magnetic separation；
3）The preparation of additive：By high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, organic flocculant on demand
The component and quality wanted are matched, and are mixed while will enter water, are stopped after the surface bubble-free of liquid to be mixed；
（2）The preliminary mixing of raw material：Under normal temperature state, by the regeneration aggregate after processing, slag, cement according to 4:2:1
Ratio be put into stirring container mixing, and add polypropylene film-fibre, sand and 2/3 additive mixed, with
The water added afterwards with above-mentioned raw materials quality proportioning is stirred, and after stirring 40-60s, is added and above-mentioned raw materials quality proportioning
Water be stirred, obtain preliminary compound；
（3）Discharging：Under normal temperature state, in step（2）Remaining 1/3 mixing is added in the preliminary compound of middle formation
Good additive, while the water for adding identical quality proportioning is stirred, final compound is formed simultaneously after stirring 80-100s
Discharging；
（4）Storage and reprocessing：By step（3）The final compound of middle formation is placed on the shady and cool local 10- dried
Taken out after 15 days, in its surface smear 5%-10% silica flour slurries, after it completely into after compound, paved and placed
It is exposed to the sun under the sun after 1-2 hours, forms celluar concrete.
Further, in step（2）In the preliminary mixing of raw material, under normal temperature state, by handle later half regeneration aggregate,
Slag, cement are according to 4:2:1 ratio is put into stirring container mixing, and add half polypropylene film-fibre, sand with
And 1/3 additive mixed, the water being subsequently added with above-mentioned raw materials quality proportioning is stirred, after stirring 40-60s, then
The water added with above-mentioned raw materials quality proportioning is stirred；After material surface-stable to be mixed, no floating object, remaining one is added again
Regeneration aggregate partly, slag, cement are according to 4:2:1 ratio is put into stirring container mixing, and adds half polypropylene screen
Fiber, sand and 1/3 additive mixed are split, the water being subsequently added with above-mentioned raw materials quality proportioning is stirred, stirred
After 40-60s, the water added with above-mentioned raw materials quality proportioning is stirred, and obtains preliminary compound；Wherein, second
The temperature that water is added during secondary stirring is 40-50 DEG C.
Further, in step（4）During storage and reprocessing, by step（3）The final compound of middle formation is put
Put and taken out behind local 10-15 days that cool place is dried, in the silica flour slurries of its surface smear 8%, the temperature of silica flour slurries is 30-
40 after it completely into after compound, paved and be placed under the sun and is exposed to the sun after 1-2 hours, form porous coagulation
Soil.
Contrast in existing technology, formula of the invention, the component and mass ratio of regeneration aggregate, slag and cement are
4:2:1；Described polypropylene fibre and the component of additive and mass ratio are 1:1；The proportioning of above-mentioned quality ensure that mixed
During conjunction can each component can be sufficiently mixed, in order to be controlled in preparation process, too many unnecessary debris will not be produced.Together
When, in formula, polypropylene fibre is added, the tensile strength for the celluar concrete prepared is improved；Meanwhile, added in formula
Additive, including high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, organic flocculant, improve concrete
PH-value, improves the performance such as ventilative, permeable of the celluar concrete prepared, and quickly condenses performance.
In the preparation process of raw material, regeneration aggregate crush for 30-40cm particle diameters particle after, while use level match somebody with somebody for
10~20 vibratory sieves are screened, and are sieved 2-3 times in the sieving time section gradually successively decreased, it is ensured that regeneration aggregate is each
The size of particle, be easy to mixing, on this basis, the water glass solution on the surface smear of regeneration aggregate, improve its surface and
Internal intensity；Secondly, slag is added in the proportioning of raw material, the compression strength of later stage celluar concrete is effectively increased.
In the preparation process of raw material, it is divided into and mixes and add additive twice, it is ensured that it can preferably be merged
Into concrete, it is ensured that the stability of its performance.And in stirring mixing twice, taken out after drying, and applied again on its surface
Smear 8% silica flour slurries, further ensure that the compression strength and stability on its surface.
Proved through test of many times, with reference to the formula and preparation method of the present invention, celluar concrete of the invention meets and carried
The performance and intensity of celluar concrete in high national standard；Simultaneously as the use of additive, changes the soda acid of concrete
Value, so that the environment for needed for plant in the growth of its pore interior, can be applied to the ground such as green way bank protection and roadside slope, have
The extensive value of environmental protection.
Embodiment
With reference to specific embodiment and experimental data, the invention will be further described.
The present invention basic proportioning be：Celluar concrete prepared by a kind of road waste aggregate, specific component
And quality proportioning is：1000~1200 parts of regeneration aggregate, 500~600 parts of slag, 250~300 parts of cement, polypropylene screen split fibre
2~6 parts of 2~6 parts of dimension, 100-200 parts of sand, 150~200 parts of water and additive；Wherein, described regeneration aggregate, slag with
And the component and mass ratio of cement are 4:2:1；Described polypropylene fibre and the component of additive and mass ratio are 1:1；
Additive is by 10~15 parts of high efficiency water reducing agent, 10~15 parts of bentonite, 10~15 parts of caoutchouc latex, thin iron powder 10~15
Part, 10~15 parts of compositions of organic flocculant.
It is expanded on further with reference to experiment and experimental data：
Embodiment 1
Experimental period：On October 20th, 2013
Enforcement place：Laboratory
Room temperature：20-25 DEG C of normal temperature
Experiment equipment：Level matches somebody with somebody the vibratory sieve for 10~20, pulverizer, agitator
Experimental period：30 days
The specific component and quality proportioning of raw material be：Regeneration aggregate 1000kg, slag 500kg, cement 250kg, poly- third
Alkene film-fibre 4kg, sand 150kg, water 150kg and additive 4kg, wherein, in additive, high efficiency water reducing agent, bentonite,
Caoutchouc latex, thin iron powder, organic flocculant are 0.8 kg.
Experimentation：
（1）It is prepared by raw material：1）The preparation of regeneration aggregate：From the discarded concrete after road reformation, it is exposed to the sun in the sun
After 1-2 hours, crushed, crushed after the particle for 45-60cm particle diameters using pulverizer, is exposed to the sun again after 1-2 hours, carried out secondary
Crushing；Crush after the particle for 30-40cm particle diameters, use level to match somebody with somebody and screened for 10~20 vibratory sieves, and gradually successively decreasing
Sieving time section in sieved 2-3 times；It is molten in the surface smear 15%-20% of regeneration aggregate waterglass after screening terminates
Liquid, and smear uniform, after water glass solution completely into behind regeneration aggregate inside, regeneration aggregate is transferred in hothouse
Row drying and maintenance processing, take out after placing 10-15 days.
2）The preparation of additive：By high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, organic flocculant on demand
The component and quality wanted are matched, and are mixed while will enter water, are stopped after the surface bubble-free of liquid to be mixed；
（2）The preliminary mixing of raw material：Under normal temperature state, the regeneration aggregate after processing, slag, cement are put into stirring
Mixed in container, and add polypropylene film-fibre, sand and 2/3 additive mixed, be subsequently added and above-mentioned raw materials
The water of quality proportioning is stirred, and after stirring 40-60s, the water added with above-mentioned raw materials quality proportioning is stirred, and is obtained
Preliminary compound；
（3）Discharging：Under normal temperature state, in step（2）Remaining 1/3 mixing is added in the preliminary compound of middle formation
Good additive, while the water for adding identical quality proportioning is stirred, final compound is formed simultaneously after stirring 80-100s
Discharging；
（4）Storage and reprocessing：By step（3）The final compound of middle formation is placed on the shady and cool local 10- dried
Taken out after 15 days, in its surface smear 5%-10% silica flour slurries, after it completely into after compound, paved and placed
It is exposed to the sun under the sun after 1-2 hours, forms celluar concrete.
Embodiment results of property
| Celluar concrete | Compression strength/Mpa | Rupture strength/Mpa | Coefficient of permeability (mm/s) | PH value |
| A | 21 | 2.6 | 1.3 | |
| B | 22 | 2.9 | 1.6 | |
| C | 24 | 3.4 | 2.3 | |
| D | 16 | 8.2 | ||
| E | 13 | 8.3 | ||
| F | 17 | 8.4 |
Note：What numbering A-C celluar concretes were mainly met is water permeability, intensity index, to pH value no requirement (NR).Numbering D-
What F celluar concretes were mainly met is to plant natural disposition energy, general to require there is certain compression strength, while pH value will meet plant
The need for growth.
Embodiment 2
Experimental period：On January 20th, 2014
Enforcement place：Workshop
Room temperature：20-25 DEG C of normal temperature
Experiment equipment：Level matches somebody with somebody the vibratory sieve for 5~15, pulverizer, agitator
Experimental period：35 days
The specific component and quality proportioning of raw material be：Regeneration aggregate 1080kg, slag 540kg, cement 270kg, poly- third
Alkene film-fibre 5kg, sand 180kg, water 180kg and additive 5kg wherein, in additive, high efficiency water reducing agent, bentonite,
Caoutchouc latex, thin iron powder, organic flocculant are 0.83 kg.
Experimentation：
（1）It is prepared by raw material：1）The preparation of regeneration aggregate：From the discarded concrete after road reformation, it is exposed to the sun in the sun
After 1-2 hours, crushed, crushed after the particle for 45-60cm particle diameters using pulverizer, is exposed to the sun again after 1-2 hours, carried out secondary
Crushing；Crush after the particle for 30-40cm particle diameters, use level to match somebody with somebody and screened for 10~20 vibratory sieves, and gradually successively decreasing
Sieving time section in sieved 2-3 times；It is molten in the surface smear 15%-20% of regeneration aggregate waterglass after screening terminates
Liquid, and smear uniform, after water glass solution completely into behind regeneration aggregate inside, regeneration aggregate is transferred in hothouse
Row drying and maintenance processing, take out after placing 10-15 days.
2）The preparation of additive：By high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, organic flocculant on demand
The component and quality wanted are matched, and are mixed while will enter water, are stopped after the surface bubble-free of liquid to be mixed；
（2）The preliminary mixing of raw material：Under normal temperature state, the regeneration aggregate after processing, slag, cement are put into stirring
Mixed in container, and add polypropylene film-fibre, sand and 2/3 additive mixed, be subsequently added and above-mentioned raw materials
The water of quality proportioning is stirred, and after stirring 40-60s, the water added with above-mentioned raw materials quality proportioning is stirred, and is obtained
Preliminary compound；
（3）Discharging：Under normal temperature state, in step（2）Remaining 1/3 mixing is added in the preliminary compound of middle formation
Good additive, while the water for adding identical quality proportioning is stirred, final compound is formed simultaneously after stirring 80-100s
Discharging；
（4）Storage and reprocessing：By step（3）The final compound of middle formation is placed on the shady and cool local 10- dried
Taken out after 15 days, in its surface smear 5%-10% silica flour slurries, after it completely into after compound, paved and placed
It is exposed to the sun under the sun after 1-2 hours, forms celluar concrete.
Embodiment results of property
| Celluar concrete | Compression strength/Mpa | Rupture strength/Mpa | Coefficient of permeability (mm/s) | PH value |
| A | 25 | 2.6 | 1.3 | |
| B | 24 | 2.9 | 1.6 | |
| C | 24 | 3.4 | 2.3 | |
| D | 18 | 8.2 | ||
| E | 18 | 8.3 | ||
| F | 18 | 8.1 |
Note：What numbering A-C celluar concretes were mainly met is water permeability, intensity index, to pH value no requirement (NR).Numbering D-
What F celluar concretes were mainly met is to plant natural disposition energy, general to require there is certain compression strength, while pH value will meet plant
The need for growth.
Embodiment 3
Experimental period：On 2 20th, 2014
Enforcement place：Laboratory
Room temperature：20-25 DEG C of normal temperature
Experiment equipment：Level matches somebody with somebody the vibratory sieve for 5~15, pulverizer, agitator
Experimental period：40 days
The specific component and quality proportioning of raw material be：Regeneration aggregate 1200kg, slag 600kg, cement 300kg, poly- third
Alkene film-fibre 6kg, sand 200kg, water 200kg and additive 6kg wherein, in additive, high efficiency water reducing agent, bentonite,
Caoutchouc latex, thin iron powder, organic flocculant are 1 kg.
Experimentation：
（1）It is prepared by raw material：1）The preparation of regeneration aggregate：From the discarded concrete after road reformation, it is exposed to the sun in the sun
After 1-2 hours, crushed, crushed after the particle for 45-60cm particle diameters using pulverizer, is exposed to the sun again after 1-2 hours, carried out secondary
Crushing；Crush after the particle for 30-40cm particle diameters, use level to match somebody with somebody and screened for 10~20 vibratory sieves, and gradually successively decreasing
Sieving time section in sieved 2-3 times；It is molten in the surface smear 15%-20% of regeneration aggregate waterglass after screening terminates
Liquid, and smear uniform, after water glass solution completely into behind regeneration aggregate inside, regeneration aggregate is transferred in hothouse
Row drying and maintenance processing, take out after placing 10-15 days.
2）The preparation of additive：By high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, organic flocculant on demand
The component and quality wanted are matched, and are mixed while will enter water, are stopped after the surface bubble-free of liquid to be mixed；
（2）The preliminary mixing of raw material：Under normal temperature state, the regeneration aggregate after processing, slag, cement are put into stirring
Mixed in container, and add polypropylene film-fibre, sand and 2/3 additive mixed, be subsequently added and above-mentioned raw materials
The water of quality proportioning is stirred, and after stirring 40-60s, the water added with above-mentioned raw materials quality proportioning is stirred, and is obtained
Preliminary compound；
（3）Discharging：Under normal temperature state, in step（2）Remaining 1/3 mixing is added in the preliminary compound of middle formation
Good additive, while the water for adding identical quality proportioning is stirred, final compound is formed simultaneously after stirring 80-100s
Discharging；
（4）Storage and reprocessing：By step（3）The final compound of middle formation is placed on the shady and cool local 10- dried
Taken out after 15 days, in its surface smear 5%-10% silica flour slurries, after it completely into after compound, paved and placed
It is exposed to the sun under the sun after 1-2 hours, forms celluar concrete.
Embodiment results of property
| Celluar concrete | Compression strength/Mpa | Rupture strength/Mpa | Coefficient of permeability (mm/s) | PH value |
| A | 26 | 2.6 | 1.3 | |
| B | 24 | 2.9 | 1.6 | |
| C | 25 | 3.4 | 2.3 | |
| D | 15 | 8.1 | ||
| E | 18 | 8.3 | ||
| F | 18 | 8.4 |
Note：What numbering A-C celluar concretes were mainly met is water permeability, intensity index, to pH value no requirement (NR).Numbering D-
What F celluar concretes were mainly met is to plant natural disposition energy, general to require there is certain compression strength, while pH value will meet plant
The need for growth.
Shown in Binding experiment data, the present invention meets the performance standard to celluar concrete of country's formulation, and acid-base property
Meet the growth of plant, meanwhile, in the formula of invention, the component and mass ratio of regeneration aggregate, slag and cement are 4:2:
1；Described polypropylene fibre and the component of additive and mass ratio are 1:1；The proportioning of above-mentioned quality ensure that in mixing
Can each component can be sufficiently mixed, and performance is stable.
In summary, the present invention both meets national requirements, also complies with the requirement of plant growth, can be widely applied to
The both sides on road, while protection, for greening environment, is significant.
Claims (3)
1. a kind of preparation technology of Recycled aerated concrete prepared by road waste aggregate, Recycled aerated concrete tool
The component and quality proportioning of body be：1000~1200 parts of regeneration aggregate, 500~600 parts of slag, 250~300 parts of cement, poly- third
2~6 parts of 2~6 parts of alkene film-fibre, 100-200 parts of sand, 150~200 parts of water and additive；
Wherein, the component and mass ratio of described regeneration aggregate, slag and cement are 4:2:1；Described polypropylene screen splits
The component and mass ratio of fiber and additive are 1:1；
Described additive is by 10~15 parts of high efficiency water reducing agent, 10~15 parts of bentonite, 10~15 parts of caoutchouc latex, thin iron
10~15 parts of powder, 10~15 parts of compositions of organic flocculant；
In additive, described high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, the component of organic flocculant and
Quality proportioning is identical.
Specific preparation technology is as follows：
（1）It is prepared by raw material：1）The preparation of regeneration aggregate：From the discarded concrete after road reformation, the 1-2 that is exposed to the sun in the sun is small
Shi Hou, uses artificial or mechanical hammering or cutting；Crush after the particle for 45-60cm particle diameters, be exposed to the sun after 1-2 hours, enter again
Row secondary hammering or cutting；
Crush after the particle for 30-40cm particle diameters, use level to match somebody with somebody and screened for 10~20 vibratory sieves, and in the sieve gradually successively decreased
Sieved 2-3 times in time segment；
After screening terminates, in the surface smear 15%-20% of regeneration aggregate water glass solution, and smear uniform, treat that waterglass is molten
Liquid is being placed completely into being dried and maintenance processing to behind regeneration aggregate inside, regeneration aggregate is transferred in hothouse
Taken out after 10-15 days；
2）The preparation of slag：By using vessel slag or open hearth slag as the slag of main component, using manually or mechanically carrying out precomminution
Afterwards, then toasted, stopped after it is completely dried, then by heat after stewing in the slag of efflorescence the slag steel of bulk with slag
Separation, carries out bulk slag steel magnetic separation first, and then slag extracts slag steel after multiple stage crushing screening magnetic separation；
3）The preparation of additive：By high efficiency water reducing agent, bentonite, caoutchouc latex, thin iron powder, organic flocculant on demand
Component and quality are matched, and are mixed while being put into water, are stopped after the surface bubble-free of liquid to be mixed；
（2）The preliminary mixing of raw material：Under normal temperature state, by the regeneration aggregate after processing, slag, cement according to 4:2:1 ratio
Example is put into stirring container mixing, and adds polypropylene film-fibre, sand and 2/3 additive mixed, then adds
The water entered with above-mentioned raw materials quality proportioning is stirred, and after stirring 40-60s, adds the water with above-mentioned raw materials quality proportioning
It is stirred, obtains preliminary compound；
（3）Discharging：Under normal temperature state, in step（2）Remaining 1/3 is added in the preliminary compound of middle formation to mix
Additive, while the water for adding identical quality proportioning is stirred, forms final compound after stirring 80-100s and goes out
Material；
（4）Storage and reprocessing：By step（3）The final compound of middle formation is placed on shady and cool local 10-15 days dried
After take out, in its surface smear 5%-10% silica flour slurries, after it completely into after compound, paved and be placed on too
It is exposed to the sun under sun after 1-2 hours, forms celluar concrete.
2. preparation technology according to claim 1, it is characterised in that in step（2）In the preliminary mixing of raw material, in normal temperature
Under state, the regeneration aggregate, slag, cement of later half will be handled according to 4:2:1 ratio is put into stirring container mixing, and
Half polypropylene film-fibre, sand and 1/3 additive mixed are added, is subsequently added and above-mentioned raw materials quality proportioning
Water is stirred, and after stirring 40-60s, the water added with above-mentioned raw materials quality proportioning is stirred；Material surface to be mixed is steady
It is fixed, after no floating object, the regeneration aggregate, slag, cement of remaining half are added again according to 4:2:1 ratio, which is put into stirring, to be held
Mixed in device, and add half polypropylene film-fibre, sand and 1/3 additive mixed, be subsequently added and above-mentioned original
The water of material quality proportioning is stirred, and after stirring 40-60s, the water added with above-mentioned raw materials quality proportioning is stirred, and
Obtain preliminary compound；Wherein, the temperature that water is added when second is stirred is 40-50 DEG C.
3. preparation technology according to claim 1, it is characterised in that in step（4）, will during storage and reprocessing
Step（3）The final compound of middle formation takes out after being placed on shady and cool local 10-15 days dried, in its surface smear 8%
Silica flour slurries, the temperature of silica flour slurries is 30-40 DEG C, after it completely into after compound, is paved and is placed on the sun
It is beneath to be exposed to the sun after 1-2 hours, form celluar concrete.
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| CN201610122913.XA CN105645855B (en) | 2014-04-24 | 2014-04-24 | The preparation technology of Recycled aerated concrete prepared by road waste aggregate |
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| CN106699079B (en) * | 2016-12-26 | 2019-01-22 | 上海中冶环境工程科技有限公司 | A kind of steel slag collaboration recycled aggregate pervious concrete |
| CN107285686B (en) * | 2017-08-01 | 2020-06-02 | 上海市建筑科学研究院 | Environment-friendly full-permeable pervious concrete based on waste concrete and preparation method thereof |
| CN111926646A (en) * | 2020-08-11 | 2020-11-13 | 董星 | High-strength light porous concrete and preparation method thereof |
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| CN102010155A (en) * | 2010-01-19 | 2011-04-13 | 孙学军 | High-strength plant growing type porous concrete and preparation method thereof |
| CN103130460A (en) * | 2011-12-01 | 2013-06-05 | 中冶宝钢技术服务有限公司 | Vegetation type steel slag polyporous concrete, preparation method thereof and application |
| CN103601426A (en) * | 2013-11-11 | 2014-02-26 | 北京新奥混凝土集团有限公司 | C15 permeable concrete prepared by use of building waste and preparation method thereof |
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| KR100334656B1 (en) * | 2001-01-30 | 2002-04-27 | 박승범 | Manufacturing Methods of Porous Concrete for Planting using Fly Ash, Silica Fume and Recycled Aggregate |
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| CN102010155A (en) * | 2010-01-19 | 2011-04-13 | 孙学军 | High-strength plant growing type porous concrete and preparation method thereof |
| CN103130460A (en) * | 2011-12-01 | 2013-06-05 | 中冶宝钢技术服务有限公司 | Vegetation type steel slag polyporous concrete, preparation method thereof and application |
| CN103601426A (en) * | 2013-11-11 | 2014-02-26 | 北京新奥混凝土集团有限公司 | C15 permeable concrete prepared by use of building waste and preparation method thereof |
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