CN106542790A - gangue light aggregate concrete and preparation method thereof - Google Patents
gangue light aggregate concrete and preparation method thereof Download PDFInfo
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- CN106542790A CN106542790A CN201610917626.8A CN201610917626A CN106542790A CN 106542790 A CN106542790 A CN 106542790A CN 201610917626 A CN201610917626 A CN 201610917626A CN 106542790 A CN106542790 A CN 106542790A
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- 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
- C04B2111/90—Electrical properties
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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
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of gangue light aggregate concrete, including following raw materials according：Gangue, sand, cement and water, wherein water-cement ratio are 0.3～0.4, and aggregate-cement ratio is 3.9～4.2, and sand coarse aggregate ratio is 41% weight～43% weight, and grading of aggregates is 1～1.2.It is preferred that C40 gangue light aggregate concretes, water-cement ratio is 0.3, and aggregate-cement ratio is 3.9, and sand coarse aggregate ratio is 42% weight, and grading of aggregates is 1.C40 gangue light aggregate concretes, water-cement ratio is 0.39, and aggregate-cement ratio is 4.2, and sand coarse aggregate ratio is 43% weight, and grading of aggregates is 1.2.Also include following raw material：Water reducer.Additionally provide related manufacturing processes.The gangue light aggregate concrete of the present invention replaces natural aggregate concrete batching using coal gangue subculture, coal shale in brick making is easy to get, low cost, so as to gangue is turned waste into wealth, and reduces environmental pollution, gangue light aggregate concrete has unit weight lighter, intensity is high, and water absorption rate is low, and Anti-Chloride Ion Penetration waits well premium properties, the fields such as building engineering construction are can be widely applied to, large-scale promotion application is suitable to.
Description
Technical field
The present invention relates to light-weight aggregate building material technical field, more particularly, to light aggregate concrete technical field, special
A kind of gangue light aggregate concrete and preparation method thereof is not referred to.
Background technology
Gangue is the solid waste discharged during coal mining process and coal washing, be one kind in coalification course with coal seam
A kind of low, harder than the coal black gray expandable rock of phosphorus content of association, its main component silica, aluminum oxide also contain quantity
Not wait iron oxide, calcium oxide, magnesia, sodium oxide molybdena, potassium oxide.With the continuous development of coal production, China's gangue
Yield grows with each passing day, and substantial amounts of coal gangue waste is stacked everywhere, does not only take up substantial amounts of soil, and serious dirt is caused to environment
Dye, and be also a kind of wasting of resources.Carry out gangue to process and recycling, turn waste into wealth, work is produced using gangue
Industry and civil buildings light-weight aggregate haydite, are not only that society reduces environmental pollution creation social benefit, can also create one for enterprise
Fixed economic benefit.
The yield of China's gangue is huge, and the consumption in ceramics and refractory material direction is relatively small, but in cement and mixes
The solidifying earthwork to application potential it is huge.Not only economically closed for building industry for natural aggregate concrete batching with coal gangue subculture
Reason, it is technically feasible, and industrial residue can be utilized in a large number, public hazards are eliminated, land resource had both been protected, and had been improved ring again
Border.But gangue construction material and industrial materials exploitation still in starting and exploratory stage, there is no the theory of more system
Guiding Practice, therefore the system research to coal gangue concrete application urgently carries out.
Accordingly, it is desirable to provide a kind of gangue light aggregate concrete, which adopts coal gangue subculture and prepares coagulation for natural aggregate
Soil, coal shale in brick making are easy to get, low cost, so as to gangue is turned waste into wealth, and reduce environmental pollution.
The content of the invention
In order to overcome above-mentioned shortcoming of the prior art, it is an object of the present invention to provide a kind of gangue light-weight aggregate
Concrete, which adopts coal gangue subculture for natural aggregate concrete batching, and coal shale in brick making is easy to get, low cost, so as to by gangue
Turn waste into wealth, and reduce environmental pollution, be suitable to large-scale promotion application.
Another object of the present invention is to provide a kind of gangue light aggregate concrete, which has unit weight lighter, and intensity is high,
Water absorption rate is low, and Anti-Chloride Ion Penetration waits well premium properties, can be widely applied to the fields such as building engineering construction, is suitable to big rule
Mould popularization and application.
Another object of the present invention is to provide a kind of preparation method of gangue light aggregate concrete, which adopts gangue
Natural aggregate concrete batching, coal shale in brick making is replaced to be easy to get, low cost so as to gangue is turned waste into wealth, and reduces environment
Pollution, is suitable to large-scale promotion application.
Another object of the present invention is to provide a kind of preparation method of gangue light aggregate concrete, bastard coal made by which
Stone light aggregate concrete has unit weight lighter, and intensity is high, and water absorption rate is low, and Anti-Chloride Ion Penetration waits well premium properties, can be wide
It is general to be applied to the fields such as building engineering construction, it is suitable to large-scale promotion application.
To reach object above, in a first aspect of the present invention, there is provided a kind of gangue light aggregate concrete, its feature
It is, including following raw materials according：Gangue, sand, cement and water, wherein water-cement ratio are 0.3～0.4, and aggregate-cement ratio is 3.9～4.2, sand
Rate be 41% weight～43% weight, the gangue using 16.0mm sieve as the grading of aggregates of distinguishing value as 1～1.2.
It is preferred that the gangue light aggregate concrete is C40 gangue light aggregate concretes, the water-cement ratio is 0.3,
The aggregate-cement ratio is 3.9, and the sand coarse aggregate ratio is 42% weight, and the grading of aggregates is 1.
It is preferred that the gangue light aggregate concrete is C40 gangue light aggregate concretes, the water-cement ratio is
0.39, the aggregate-cement ratio is 4.2, and the sand coarse aggregate ratio is 43% weight, and the grading of aggregates is 1.2.
It is preferred that the particle diameter of the gangue is 5mm～26.5mm；The sand is middle sand.
It is preferred that the gangue includes following components and weight percentage：Silica content be 30% weight～
60% weight, alumina content are 15% weight～40% weight, iron oxide content is 2% weight～10% weight, carbon content
20% weight～30% weight.
It is preferred that the cement is Portland cement；The sand is river sand.
It is preferred that the gangue light aggregate concrete also includes following raw material：Water reducer, the water reducer and the water
Weight ratio be 0.043～0.044.
More preferably, the water reducer is naphthalene series high-performance dehydragent.
In a second aspect of the present invention, there is provided a kind of preparation method of gangue light aggregate concrete, it is characterized in, institute
It is above-mentioned gangue light aggregate concrete to state gangue light aggregate concrete, the preparation of described gangue light aggregate concrete
Method is comprised the following steps：
(1) will be the gangue, the sand and the cement mixing and stirring uniform；
(2) water is slowly added to and then while stirring, then is sufficiently stirred for.
It is preferred that the gangue light aggregate concrete also includes following raw material：Water reducer, the water reducer and the water
Weight ratio be 0.043～0.044, in the step (2), the water reducer and the water are added slowly together.
The beneficial effects of the present invention is：
A. gangue light aggregate concrete of the invention, including following raw materials according：Gangue, sand, cement and water, wherein water
Glue ratio be 0.3～0.4, aggregate-cement ratio be 3.9～4.2, sand coarse aggregate ratio be 41% weight～43% weight, the gangue with 16.0mm
Sieve is 1～1.2 as the grading of aggregates of distinguishing value, therefore, which adopts coal gangue subculture for natural aggregate concrete batching, gangue
Raw material is easy to get, low cost, so as to gangue is turned waste into wealth, and reduces environmental pollution, is suitable to large-scale promotion application.
B. gangue light aggregate concrete of the invention, including following raw materials according：Gangue, sand, cement and water, wherein water
Glue ratio be 0.3～0.4, aggregate-cement ratio be 3.9～4.2, sand coarse aggregate ratio be 41% weight～43% weight, the gangue with 16.0mm
Sieve is 1～1.2 as the grading of aggregates of distinguishing value, and lighter with unit weight, intensity is high, and water absorption rate is low, Anti-Chloride Ion Penetration
Premium properties is waited well, the fields such as building engineering construction is can be widely applied to, is suitable to large-scale promotion application.
C. the preparation method of gangue light aggregate concrete of the invention is comprised the following steps：(1) by the gangue, institute
State sand and the cement mixing and stirring is uniform；(2) water is slowly added to and then while stirring, then is sufficiently stirred for, therefore, which adopts coal
Spoil replaces natural aggregate concrete batching, coal shale in brick making to be easy to get, and low cost so as to gangue is turned waste into wealth, and is reduced
Environmental pollution, is suitable to large-scale promotion application.
D. the preparation method of gangue light aggregate concrete of the invention is comprised the following steps：(1) by the gangue, institute
State sand and the cement mixing and stirring is uniform；(2) be slowly added to and then while stirring water, then be sufficiently stirred for, made by gangue
Light aggregate concrete has unit weight lighter, and intensity is high, and water absorption rate is low, and Anti-Chloride Ion Penetration waits well premium properties, can be extensive
The fields such as building engineering construction are applied to, large-scale promotion application is suitable to.
The these and other objects of the present invention, feature and advantage, are filled by following detailed descriptions and claim
Split is existing, and means, device and the combinations thereof that specially can point out in passing through claims are achieved.
Specific embodiment
The invention provides a kind of gangue light aggregate concrete, including following raw materials according：Gangue, sand, cement and water,
Wherein water-cement ratio be 0.3～0.4, aggregate-cement ratio be 3.9～4.2, sand coarse aggregate ratio be 41% weight～43% weight, the gangue with
The grading of aggregates as distinguishing value of 16.0mm sieves is 1～1.2.
Here grading of aggregates refers to the ratio of rough coal spoil and duff spoil, chooses 16.0mm and sieves as distinguishing value.
The gangue light aggregate concrete can have any suitable intensity and adopt any suitable proportioning, preferably
Ground, the gangue light aggregate concrete are C40 gangue light aggregate concretes, and the water-cement ratio is 0.3, and the aggregate-cement ratio is
3.9, the sand coarse aggregate ratio is 42% weight, and the grading of aggregates is 1.
The gangue light aggregate concrete can have any suitable intensity and adopt any suitable proportioning, preferably
Ground, the gangue light aggregate concrete are C40 gangue light aggregate concretes, and the water-cement ratio is 0.39, the aggregate-cement ratio
For 4.2, the sand coarse aggregate ratio is 43% weight, and the grading of aggregates is 1.2.
The diameter of the particle diameter of the gangue and the sand can determine as needed, it is preferred that the grain of the gangue
Footpath is 5mm～26.5mm；The sand is middle sand, such as the apparent density of described sand is 2600kg/m3, modulus of fineness is 2.94.
The component and content that the gangue contains is different according to varying environment, it is preferred that the gangue bag
Include following components and weight percentage：Silica content is 30% weight～60% weight, alumina content is 15% weight
～40% weight, iron oxide content are 2% weight～10% weight, 20% weight～30% weight of carbon content.
The cement can be any suitable cement, and the sand can be any suitable sand, it is preferred that the cement
It is Portland cement；Or, the sand is river sand.
In order to reduce water consumption, improve concrete strength, or cement consumption is saved, it is preferred that the gangue light-weight aggregate
Concrete also includes following raw material：Water reducer, the water reducer are 0.043～0.044 with the weight ratio of the water.
The water reducer can be any suitable water reducer, such as high efficiency water reducing agent, and more preferably, the water reducer is naphthalene
Series high-performance dehydragent.Such as TM-B types naphthalene series high-efficiency water-reducing agent.
Present invention also offers the preparation method of above-mentioned gangue light aggregate concrete, comprises the following steps：
(1) will be the gangue, the sand and the cement mixing and stirring uniform；
(2) water is slowly added to and then while stirring, then is sufficiently stirred for.
If the gangue light aggregate concrete also includes following raw material：Water reducer, the water reducer and the water
Weight ratio is 0.043～0.044, in the step (2), the water reducer and the water is added slowly together.
In order to be more clearly understood that the technology contents of the present invention, describe in detail especially exemplified by following examples.All of hundred
Divide and be weight percentage than, unless otherwise specified.
Gangue is Chaoyang City, Liaoning Province county of Beipiao City Chaoyang colliery institute producing coal spoil, and maximum particle diameter is 26.5mm；
River sand produced by the Shenyang City, Liaoning Province Liaohe River in sand, its apparent density be 2600kg/m3, modulus of fineness is 2.94；
It is Dalian Huaneng Group- little Ye fields Cement Co., Ltd that Portland cement (PO 42.5R) is the cement selected
In the Portland cement sold by Shenyang, its model PO 42.5R；
Naphthalene series high-efficiency water-reducing agent is that the brownish-yellow powder shape naphthalene series high-performance of Shenyang Yi Lida admixture construction plants production subtracts
Aqua, its solid content >=94%, paste flowing degree >=230mm, sodium sulphate content≤10, chloride ion content≤0.5%.
Embodiment 1：
Raw material：Portland cement, water, river sand, gangue, naphthalene series high-efficiency water-reducing agent be respectively 430kg, 129kg,
704kg, 973kg, 5.6kg, wherein water-cement ratio are 0.3, and aggregate-cement ratio is 3.9, and sand coarse aggregate ratio is 42% weight, and grading of aggregates is 1, bastard coal
The particle diameter of stone is 5mm～26.5mm, and gangue includes following components and weight percentage：Silica content be 30% weight,
Alumina content is 40% weight, iron oxide content is 5% weight, 25% weight of carbon content.
Prepare：Gangue, river sand, Portland cement are sequentially added standby in mixer；1min is sufficiently stirred for, is made
Aggregate is well mixed with powder；After being well mixed, naphthalene series high-efficiency water-reducing agent and water are slowly added to simultaneously in whipping process, then are filled
Divide stirring 180s.
After testing, the compression strength of gangue light aggregate concrete made by is C40, and 28d compression strength preferably, is
44.1MPa.After 200 Frozen-thawed cycleds, intensity is 43.3MPa, and loss of strength rate is 1.8%, and mass loss rate is 5.5%, 6h electric
Flux is 1005.33C.
Embodiment 2：
Raw material：Portland cement, water, river sand, gangue, naphthalene series high-efficiency water-reducing agent be respectively 430kg, 168kg,
777kg, 1029kg, 7.3kg, wherein water-cement ratio are 0.39, and aggregate-cement ratio is 4.2, and sand coarse aggregate ratio is 43% weight, and grading of aggregates is 1.2,
Gangue is maximum particle diameter 26.5mm continuous grading gangue, and gangue includes following components and weight percentage：Silica
Content is 45% weight, alumina content is 15% weight, iron oxide content is 10% weight, 30% weight of carbon content.
Prepare：Gangue, river sand, Portland cement are sequentially added standby in mixer；It is sufficiently stirred for 1.5min,
Aggregate is made to be well mixed with powder；After being well mixed, naphthalene series high-efficiency water-reducing agent and water are slowly added to simultaneously in whipping process, then
It is sufficiently stirred for 200s.
After testing, the compression strength of gangue light aggregate concrete made by is C40, Anti-Chloride Ion Penetration preferably,
6h electric fluxes are 985.36C, with stronger the resistance of concrete to chloride ion penetration；28d compression strength is 42.4MPa.200 freeze thawing are followed
After ring, intensity is 40.7MPa, and loss of strength rate is 4.0%, and mass loss rate is 5.7%.
Embodiment 3：
Raw material：Portland cement, water, river sand, gangue, naphthalene series high-efficiency water-reducing agent be respectively 430kg, 151kg,
632kg, 873kg, 6.6kg, wherein water-cement ratio are 0.35, and aggregate-cement ratio is 3.5, and sand coarse aggregate ratio is 42% weight, and grading of aggregates is 1, coal
The particle diameter of spoil is 5mm～26.5mm, and gangue includes following components and weight percentage：Silica content is 60% weight
Amount, alumina content are 18% weight, iron oxide content is 2% weight, 20% weight of carbon content.
Prepare：Gangue, river sand, Portland cement are sequentially added standby in mixer；2min is sufficiently stirred for, is made
Aggregate is well mixed with powder；After being well mixed, naphthalene series high-efficiency water-reducing agent and water are slowly added to simultaneously in whipping process, then are filled
Divide stirring 240s.
After testing, the 28d compression strength of gangue light aggregate concrete made by is 45.3MPa.After 200 Frozen-thawed cycleds
Intensity is 42.4MPa, and loss of strength rate is 6.4%, and it is 1152.37C that mass loss rate is 5.6%, 6h electric fluxes.
Embodiment 4：
Raw material：Portland cement, water, river sand, gangue, naphthalene series high-efficiency water-reducing agent be respectively 430kg, 138kg,
703kg, 931kg, 6kg, wherein water-cement ratio are 0.32, and aggregate-cement ratio is 3.8, and sand coarse aggregate ratio is 43% weight, and grading of aggregates is 1.1, coal
Spoil is maximum particle diameter 26.5mm continuous grading gangue, and gangue includes following components and weight percentage：Silica contains
Measure for 45% weight, alumina content be 30% weight, iron oxide content be 5% weight, 20% weight of carbon content.
Prepare：Gangue, river sand, Portland cement are sequentially added standby in mixer；2min is sufficiently stirred for, is made
Aggregate is well mixed with powder；After being well mixed, naphthalene series high-efficiency water-reducing agent and water are slowly added to simultaneously in whipping process, then are filled
Divide stirring 200s.
After testing, the 28d compression strength of gangue light aggregate concrete made by is 42.5MPa.After 200 Frozen-thawed cycleds
Intensity is 40.2MPa, and loss of strength rate is 5.4%, and it is 1098.00C that mass loss rate is 5.7%, 6h electric fluxes.
Therefore, gangue light aggregate concrete be C40 gangue light aggregate concretes, water-cement ratio is 0.3, and aggregate-cement ratio is
3.9, sand coarse aggregate ratio is 42% weight, and when grading of aggregates is 1, the anti-freezing property of gangue light aggregate concrete is optimum；It is light in gangue
Aggregate concrete be C40 gangue light aggregate concretes, water-cement ratio is 0.39, and aggregate-cement ratio is 4.2, sand coarse aggregate ratio be 43% weight, bone
When material level is with being 1.2, gangue light aggregate concrete has stronger the resistance of concrete to chloride ion penetration.
The present invention adopts gangue for light coarse aggregate (also known as coarse aggregate), adopts sand for light fine aggregate (also known as fine aggregate),
It is mixed that gangue light aggregate concrete is prepared with cement and water.Compared to existing technology, the present invention has advantages below：
1. the present invention is raw material from gangue, makes full use of industrial waste, effectively reduces pollution.
2. the light-weight aggregate coal gangue concrete that prepared by the present invention, unit weight are lighter, and frost resistance and Anti-Chloride Ion Penetration are good
It is good, can be widely applied to the fields such as construction.
So as to, the invention provides a kind of industry and civil buildings gangue light aggregate concrete and preparation method thereof,
Light aggregate concrete is prepared for aggregate using gangue, belong to artificial lightweight aggregate technical field of concrete.The gangue light-weight aggregate
Concrete can be widely applied to the fields such as building engineering construction, can the industrial waste such as effectively utilizes gangue, reduce pollution.
In sum, gangue light aggregate concrete of the invention replaces natural aggregate concrete batching using coal gangue subculture,
Coal shale in brick making is easy to get, low cost, so as to gangue is turned waste into wealth, and reduces environmental pollution, gangue light aggregate concrete
Lighter with unit weight, intensity is high, and water absorption rate is low, and Anti-Chloride Ion Penetration waits well premium properties, can be widely applied to build work
The fields such as journey construction, are suitable to large-scale promotion application.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification is considered as illustrative rather than limit
Property processed.
Claims (10)
1. a kind of gangue light aggregate concrete, it is characterised in that including following raw materials according：Gangue, sand, cement and water, its
Middle water-cement ratio be 0.3～0.4, aggregate-cement ratio be 3.9～4.2, sand coarse aggregate ratio be 41% weight～43% weight, the gangue with
16.0mm sieves are 1～1.2 as the grading of aggregates of distinguishing value.
2. gangue light aggregate concrete according to claim 1, it is characterised in that the gangue light aggregate concrete
For C40 gangue light aggregate concretes, the water-cement ratio is 0.3, and the aggregate-cement ratio is 3.9, and the sand coarse aggregate ratio is 42% weight, institute
Grading of aggregates is stated for 1.
3. gangue light aggregate concrete according to claim 1, it is characterised in that the gangue light aggregate concrete
For C40 gangue light aggregate concretes, the water-cement ratio is 0.39, and the aggregate-cement ratio is 4.2, and the sand coarse aggregate ratio is 43% weight,
The grading of aggregates is 1.2.
4. gangue light aggregate concrete according to claim 1, it is characterised in that the particle diameter of the gangue is 5mm
～26.5mm；The sand is middle sand.
5. gangue light aggregate concrete according to claim 1, it is characterised in that the gangue includes following components
And weight percentage：Silica content is 30% weight～60% weight, alumina content is 15% weight～40% weight,
Iron oxide content is 2% weight～10% weight, 20% weight～30% weight of carbon content.
6. gangue light aggregate concrete according to claim 1, it is characterised in that the cement is normal silicate water
Mud；The sand is river sand.
7. gangue light aggregate concrete according to claim 1, it is characterised in that the gangue light aggregate concrete
Also include following raw material：Water reducer, the water reducer are 0.043～0.044 with the weight ratio of the water.
8. gangue light aggregate concrete according to claim 7, it is characterised in that the water reducer is naphthalene series high-performance
Water reducer.
9. a kind of preparation method of gangue light aggregate concrete, it is characterised in that the gangue light aggregate concrete be as
Gangue light aggregate concrete described in claim 1, the preparation method of described gangue light aggregate concrete include following
Step：
(1) will be the gangue, the sand and the cement mixing and stirring uniform；
(2) water is slowly added to and then while stirring, then is sufficiently stirred for.
10. the preparation method of gangue light aggregate concrete according to claim 9, it is characterised in that the gangue
Light aggregate concrete also includes following raw material：Water reducer, the water reducer are 0.043～0.044 with the weight ratio of the water,
In the step (2), the water reducer and the water are added slowly together.
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