CN109574590A - A kind of high-strength water-permeable concrete and preparation method thereof - Google Patents
A kind of high-strength water-permeable concrete and preparation method thereof Download PDFInfo
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- CN109574590A CN109574590A CN201811549486.9A CN201811549486A CN109574590A CN 109574590 A CN109574590 A CN 109574590A CN 201811549486 A CN201811549486 A CN 201811549486A CN 109574590 A CN109574590 A CN 109574590A
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of high-strength water-permeable concretes and preparation method thereof.Its technical solution is: first by the portland cement of 150~300 mass parts, the slag micro powder of 100~160 mass parts, the waste stone powder of 70~100 mass parts, the flyash of 40~100 mass parts, the construction refuse regenerated aggregate of 1350~1550 mass parts, the poly carboxylic acid series water reducer of 6~10 mass parts, in the sand of 40~55 mass parts and the organic pigment of 0~70 mass parts merging batch mixer, under agitation, in three times plus water, amount of water is followed successively by 40~50 mass parts, 20~30 mass parts and 20~30 mass parts, adding water spacer is 2~14 minutes, mixing time is 10~50 minutes.Recycle road roller method, milling roller method or the molding of low-frequency vibration compacting, 7~14d of natural curing under the conditions of humidity >=95% and 15~30 DEG C that high-strength water-permeable concrete is made.The present invention has the characteristics that simple process, low in cost and utilization rate of solid waste are high, and made product properties is excellent.
Description
Technical field
The invention belongs to pervious concrete technical fields.More particularly to a kind of high-strength water-permeable concrete and preparation method thereof.
Background technique
With rapid development of economy, the discharge amount of building solid castoff accounted for about municipal refuse total amount 30~
40wt%.But the comprehensive utilization ratio of current building solid castoff is less than 5%, and main using air storage or landfill
Mode is handled.This does not only take up a large amount of soils and waste of resource, but also seriously affects Soil Surrounding, water quality and air matter
Amount, there are security risks.
Steel slag is the waste residue generated in steel smelting procedure, and every production 1t steel about discharges the steel slag of 15~20wt%.By
Poor in steel slag grindability, active low and quality is unstable, and steel slag solid waste is difficult to utilize on a large scale.Currently, steel slag is comprehensive
Utilization rate is closed less than 10%, and mainly based on stockpiling, this has not only broken up periphery ecological environment, and seriously constrains steel
The sustainable development of industry.For this purpose, how to improve the utilization rate of building solid castoff and metallurgical steel slag solid waste becomes
Key technical problem urgently to be resolved.
In recent years, preparing pervious concrete material using solid waste becomes the hot spot of green building material industry research.
" a method of pervious concrete is prepared using recycled aggregate " (CN106045404A) patented technology, though the technology utilizes regeneration
Pervious concrete is made in aggregate, but a variety of chemical reagent such as need to be added calcium chloride, sodium gluconate, and also needs to be added more
Graphene oxide, manufacturing cost is extremely expensive, is not suitable for paving." flying dust system is calcined using high-strength ceramic granule and haydite
Standby pervious concrete material " (CN105236878A) patented technology, though the more excellent pervious concrete of performance is also made in the technology
Material, but one side high-strength ceramic granule price is relatively high, and another aspect haydite calcining flying dust yield is small, and source is few, is not suitable for real
Border large-scale application." highway engineering pervious concrete " (CN105084838B) patented technology, though technology steel slag aggregate
Corrosion-resistant pervious concrete is made, but the technology does not account for the problem of steel slag aggregate stability difference, the later period, there are easy to crack, strong
Spend the problems such as low and service life is short.
Summary of the invention
The present invention is directed to overcome prior art defect, and it is an object of the present invention to provide a kind of simple process, low in cost and solid are useless
The preparation method of the high high-strength water-permeable concrete of gurry utilization rate is had excellent performance with high-strength water-permeable concrete prepared by this method.
To achieve the above object, we it is bright the technical solution adopted is that: the preparation method of the high-strength water-permeable concrete is:
First by the portland cement of 150~300 mass parts, the slag micro powder of 100~160 mass parts, 70~100 mass parts discarded stone
Powder, the flyash of 40~100 mass parts, the construction refuse regenerated aggregate of 1350~1550 mass parts, 6~10 mass parts poly- carboxylic
In the organic pigment merging batch mixer of sour based water reducer, the sand of 40~55 mass parts and 0~70 mass parts, in stirring condition
Under, water is added into batch mixer in three times, amount of water is followed successively by 40~50 mass parts, 20~30 mass parts and 20~30 mass
Part, every time plus the time interval of water is 2~14 minutes, and mixing time is 10~50 minutes total.
Then it is formed using road roller method, milling roller method or low-frequency vibration compacting, is 15 in humidity >=95% and temperature
High-strength water-permeable concrete is made in 7~14d of natural curing under the conditions of~30 DEG C.
The portland cement marked as PO42.5 or more.
The slag micro powder be by waste steel slag after the stewing processing of heat obtained micro mist；The slag micro powder chemistry at
Dividing is: CaO is 35~45wt%, SiO2For 14~18wt%, Fe2O3For 18~22wt%, Al2O3For 5~7wt%, MgO 6
~7wt%, f-CaO≤1.6wt%；Specific surface area >=500m of the slag micro powder2/ kg, activity index >=90%.
The partial size of the waste stone powder is 0.05~0.15mm；The chemical constituent of the waste stone powder is: CaO be 30~
60wt%, SiO2For 0.1~30wt%, Fe2O3For 0.1~5wt%, Al2O3It is 0.1~8wt% for 0.1~10wt%, MgO.
The construction refuse regenerated aggregate is to handle building solid castoff through dregs separation, broken, screening and magnetic separation
The aggregate obtained afterwards；The construction refuse regenerated aggregate is: by building waste aggregate I: building waste aggregate II: building waste bone
The mass ratio of material III is 1: 2: (1~3), by the building waste coarse aggregate I, the building waste coarse aggregate II and the building
Rubbish coarse aggregate III mixes；The partial size of the building waste coarse aggregate I is less than or equal to 4.75mm and is greater than 2.36mm, described
The partial size of building waste coarse aggregate II is less than or equal to 9.50mm and to be greater than 4.75mm, the partial size of the building waste coarse aggregate III
Less than or equal to 20mm and it is greater than 9.50mm；
The chemical component of the construction refuse regenerated aggregate is: CaO is 15~30wt%, SiO2For 45~65wt%,
Fe2O3For 2~8wt%, Al2O3It is 1~6wt% for 5~15wt%, MgO.
Due to the adoption of the above technical scheme, the present invention has following good effect compared with prior art:
1. the present invention only need to be by portland cement, slag micro powder, waste stone powder, flyash, construction refuse regenerated aggregate, poly-
In carboxylic acid water reducing agent, sand and organic pigment merging batch mixer, adds water and stirs, form, conserve to get high-strength water-permeable coagulation
Soil, simple process.
2. the present invention replaces part portland cement using slag micro powder, and with the building waste aggregate of three kinds of different-grain diameters
Recycled aggregate made of compounding is aggregate, low in cost, the comprehensive benefit with building solid castoff and metallurgical solid waste
With the high feature of rate.
3. high-strength water-permeable concrete prepared by the present invention is through detecting: porosity is 18~25%；Coefficient of permeability >=2.4mm/
s；1900~2300kg/m of bulk density3；28d flexural strength >=4.5MPa；Compression strength >=28MPa.Function admirable, made product are full
The performance requirement of sufficient C25 pervious concrete.
Therefore, the present invention has the characteristics that high, the prepared height of simple process, low in cost and utilization rate of solid waste
Highly permeable concrete performance is excellent.
Specific embodiment
The invention will be further described With reference to embodiment, not to the limitation of its protection scope.
To avoid repeating, first the agreement of material involved in present embodiment is described as follows, it is no longer superfluous in embodiment
It states:
The portland cement marked as PO42.5 or more.
The slag micro powder be by waste steel slag after the stewing processing of heat obtained micro mist；The slag micro powder chemistry at
Dividing is: CaO is 35~45wt%, SiO2For 14~18wt%, Fe2O3For 18~22wt%, Al2O3For 5~7wt%, MgO 6
~7wt%, f-CaO≤1.6wt%；Specific surface area >=500m of the slag micro powder2/ kg, activity index >=90%.
The partial size of the waste stone powder is 0.05~0.15mm；The chemical constituent of the waste stone powder is: CaO be 30~
60wt%, SiO2For 0.1~30wt%, Fe2O3For 0.1~5wt%, Al2O3It is 0.1~8wt% for 0.1~10wt%, MgO.
The construction refuse regenerated aggregate is to handle building solid castoff through dregs separation, broken, screening and magnetic separation
The aggregate obtained afterwards；The construction refuse regenerated aggregate is: by building waste aggregate I: building waste aggregate II: building waste bone
The mass ratio of material III is 1: 2: (1~3), by the building waste coarse aggregate I, the building waste coarse aggregate II and the building
Rubbish coarse aggregate III mixes；The partial size of the building waste coarse aggregate I is less than or equal to 4.75mm and is greater than 2.36mm, described
The partial size of building waste coarse aggregate II is less than or equal to 9.50mm and to be greater than 4.75mm, the partial size of the building waste coarse aggregate III
Less than or equal to 20mm and it is greater than 9.50mm.
The chemical component of the construction refuse regenerated aggregate is: CaO is 15~30wt%, SiO2For 45~65wt%,
Fe2O3For 2~8wt%, Al2O3It is 1~6wt% for 5~15wt%, MgO.
Embodiment 1
A kind of high-strength water-permeable concrete and preparation method thereof.Preparation method described in the present embodiment is:
First by the portland cement of 150~200 mass parts, the slag micro powder of 140~160 mass parts, 70~80 mass parts
Waste stone powder, the flyash of 40~60 mass parts, the construction refuse regenerated aggregate of 1450~1550 mass parts, 8~10 mass
In the organic pigment merging batch mixer of the poly carboxylic acid series water reducer of part, the sand of 50~55 mass parts and 40~70 mass parts,
Under stirring condition, be added water into batch mixer in three times, amount of water be followed successively by 40~50 mass parts, 20~30 mass parts and 20~
30 mass parts, every time plus the time interval of water is 2~14 minutes, and mixing time is 10~50 minutes total.
Then it is formed using road roller method, milling roller method or low-frequency vibration compacting, is 15 in humidity >=95% and temperature
High-strength water-permeable concrete is made in 7~10d of natural curing under the conditions of~30 DEG C.
High-strength water-permeable concrete manufactured in the present embodiment is through detecting: porosity is 20.2~24.6%；Coefficient of permeability 2.7~
3.5mm/s；1950~2100kg/m of bulk density3；4.7~5.5MPa of 28d flexural strength；28.6~32.3MPa of 28d compression strength.
Embodiment 2
A kind of high-strength water-permeable concrete and preparation method thereof.Preparation method described in the present embodiment is:
First by the portland cement of 200~250 mass parts, the slag micro powder of 120~140 mass parts, 80~90 mass parts
Waste stone powder, the flyash of 60~80 mass parts, the construction refuse regenerated aggregate of 1400~1500 mass parts, 7~9 mass parts
Poly carboxylic acid series water reducer, 45~50 mass parts sand and 10~40 mass parts organic pigment merging batch mixer in, stirring
Under the conditions of mixing, water is added into batch mixer in three times, amount of water is followed successively by 40~50 mass parts, 20~30 mass parts and 20~30
Mass parts, every time plus the time interval of water is 2~14 minutes, and mixing time is 10~50 minutes total.
Then it is formed using road roller method, milling roller method or low-frequency vibration compacting, is 15 in humidity >=95% and temperature
High-strength water-permeable concrete is made in 9~12d of natural curing under the conditions of~30 DEG C.
High-strength water-permeable concrete manufactured in the present embodiment is through detecting: porosity is 18.7~23.6%；Coefficient of permeability 2.5~
3.2mm/s；2050~2200kg/m of bulk density3；5.1~5.8MPa of 28d flexural strength；29.4~35.1MPa of 28d compression strength.
Embodiment 3
A kind of high-strength water-permeable concrete and preparation method thereof.Preparation method described in the present embodiment is:
First by the portland cement of 250~300 mass parts, the slag micro powder of 100~120 mass parts, 90~100 mass parts
Waste stone powder, the flyash of 80~100 mass parts, the construction refuse regenerated aggregate of 1350~1450 mass parts, 6~8 mass
In the poly carboxylic acid series water reducer of part and the sand merging batch mixer of 40~45 mass parts, under agitation, in three times to mixing
Water is added in machine, amount of water is followed successively by 40~50 mass parts, 20~30 mass parts and 20~30 mass parts, adds the time of water every time
Between be divided into 2~14 minutes, mixing time total 10~50 minutes.
Then it is formed using road roller method, milling roller method or low-frequency vibration compacting, is 15 in humidity >=95% and temperature
High-strength water-permeable concrete is made in 11~14d of natural curing under the conditions of~30 DEG C.
High-strength water-permeable concrete manufactured in the present embodiment is through detecting: porosity is 18.2~24.3%；Coefficient of permeability 2.7~
3.6mm/s；2150~2300kg/m of bulk density3；4.8~6.2MPa of 28d flexural strength；28.7~33.4MPa of 28d compression strength.
Present embodiment has following good effect compared with prior art:
1. present embodiment only need to be by portland cement, slag micro powder, waste stone powder, flyash, building waste again
In raw aggregate, poly carboxylic acid series water reducer, sand and organic pigment merging batch mixer, adds water and stirs, form, conserve to get high-strength
Pervious concrete, simple process.
2. present embodiment replaces part portland cement using slag micro powder, and with the building of three kinds of different-grain diameters
Recycled aggregate made of garbage aggregate compounding is aggregate, low in cost, has building solid castoff and metallurgical solid waste
The high feature of comprehensive utilization ratio.
3. the high-strength water-permeable concrete of present embodiment preparation is through detecting: porosity is 18~25%；Coefficient of permeability
≥2.4mm/s；1900~2300kg/m of bulk density3；28d flexural strength >=4.5MPa；Compression strength >=28MPa.Function admirable, institute
Product meets the performance requirement of C25 pervious concrete.
Therefore, present embodiment has the characteristics that simple process, low in cost and utilization rate of solid waste are high, institute
The high-strength water-permeable concrete function admirable of preparation.
Claims (6)
1. a kind of preparation method of high-strength water-permeable concrete, it is characterised in that the preparation method of the high-strength water-permeable concrete is:
First by the portland cement of 150~300 mass parts, the slag micro powder of 100~160 mass parts, 70~100 mass parts discarded stone
Powder, the flyash of 40~100 mass parts, the construction refuse regenerated aggregate of 1350~1550 mass parts, 6~10 mass parts poly- carboxylic
In the organic pigment merging batch mixer of sour based water reducer, the sand of 40~55 mass parts and 0~70 mass parts, in stirring condition
Under, water is added into batch mixer in three times, amount of water is followed successively by 40~50 mass parts, 20~30 mass parts and 20~30 mass
Part, every time plus the time interval of water is 2~14 minutes, and mixing time is 10~50 minutes total；
Then it is formed using road roller method, milling roller method or low-frequency vibration compacting, is 15~30 in humidity >=95% and temperature
High-strength water-permeable concrete is made in 7~14d of natural curing under the conditions of DEG C.
2. the preparation method of high-strength water-permeable concrete according to claim 1, it is characterised in that the portland cement
Marked as PO42.5 or more.
3. the preparation method of high-strength water-permeable concrete according to claim 1, it is characterised in that the slag micro powder is
By waste steel slag after the stewing processing of heat obtained micro mist；The chemical component of the slag micro powder is: CaO is 35~45wt%,
SiO2For 14~18wt%, Fe2O3For 18~22wt%, Al2O3For 5~7wt%, MgO is 6~7wt%, f-CaO≤
1.6wt%；Specific surface area >=500m of the slag micro powder2/ kg, activity index >=90%.
4. the preparation method of high-strength water-permeable concrete according to claim 1, it is characterised in that the waste stone powder
Partial size is 0.05~0.15mm；The chemical constituent of the waste stone powder is: CaO is 30~60wt%, SiO2For 0.1~
30wt%, Fe2O3For 0.1~5wt%, Al2O3It is 0.1~8wt% for 0.1~10wt%, MgO.
5. the preparation method of high-strength water-permeable concrete according to claim 1, it is characterised in that the building waste is again
Raw aggregate is the aggregate for obtaining building solid castoff after dregs separation, broken, screening and magnetic separation processing；The building rubbish
Rubbish recycled aggregate is: by building waste aggregate I: building waste aggregate II: the mass ratio of building waste aggregate III is 1: 2: (1~
3), the building waste coarse aggregate I, the building waste coarse aggregate II and the building waste coarse aggregate III are mixed；
The partial size of the building waste coarse aggregate I is less than or equal to 4.75mm and is greater than 2.36mm, the grain of the building waste coarse aggregate II
Diameter is less than or equal to 9.50mm and to be greater than 4.75mm, and the partial size of the building waste coarse aggregate III is less than or equal to 20mm and is greater than
9.50mm；
The chemical component of the construction refuse regenerated aggregate is: CaO is 15~30wt%, SiO2For 45~65wt%, Fe2O3It is 2
~8wt%, Al2O3It is 1~6wt% for 5~15wt%, MgO.
6. a kind of high-strength water-permeable concrete, it is characterised in that the high-strength water-permeable concrete is Xiang Zhongren according to claim 1~5
High-strength water-permeable concrete prepared by the preparation method of one high-strength water-permeable concrete.
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| CN115385622A (en) * | 2022-07-12 | 2022-11-25 | 河海大学 | Solid waste pavement repairing material and preparation method thereof |
| CN116217183A (en) * | 2023-05-08 | 2023-06-06 | 湖南省交通科学研究院有限公司 | Water-permeable construction waste regenerated base material and mixing and construction process thereof |
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| CN112321247A (en) * | 2020-11-03 | 2021-02-05 | 中冶宝钢技术服务有限公司 | Pavement brick and preparation method thereof |
| CN112341082A (en) * | 2020-11-03 | 2021-02-09 | 湖北工业大学 | Pervious concrete based on steel slag and recycled aggregate and preparation method thereof |
| CN115385622A (en) * | 2022-07-12 | 2022-11-25 | 河海大学 | Solid waste pavement repairing material and preparation method thereof |
| CN116217183A (en) * | 2023-05-08 | 2023-06-06 | 湖南省交通科学研究院有限公司 | Water-permeable construction waste regenerated base material and mixing and construction process thereof |
| CN116217183B (en) * | 2023-05-08 | 2023-08-11 | 湖南省交通科学研究院有限公司 | Water-permeable construction waste regenerated base material and mixing and construction process thereof |
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