CN106892624A - A kind of iron tailings foam concrete and prefabricated steel framework wallboard and its construction method - Google Patents
A kind of iron tailings foam concrete and prefabricated steel framework wallboard and its construction method Download PDFInfo
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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
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/049—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres completely or partially of insulating material, e.g. cellular concrete or foamed plaster
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
- E04C2/384—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a metal frame
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- C—CHEMISTRY; METALLURGY
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- 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
- C04B2111/00017—Aspects relating to the protection of the environment
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- C—CHEMISTRY; METALLURGY
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- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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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
- 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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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
- 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
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Abstract
A kind of iron tailings foam concrete and prefabricated steel framework wallboard and its construction method, wherein prefabricated steel framework wallboard includes steel mesh case frame, steel fabric sheet and the iron tailings bubble concrete layer being cast in outside steel mesh case frame and steel fabric sheet；The steel mesh case frame is rectangular lattice structure, including upper nose girder, lower nose girder, vertical supporting and cross-brace；Upper nose girder is horizontally set at the apical position of steel mesh case frame, and lower nose girder is horizontally set at the bottom position of steel mesh case frame；Vertical supporting has one group, and transversely parallel interval is connected between nose girder and lower nose girder；On vertical supporting, one group of hole is provided with along its long axis direction uniform intervals；If steel fabric sheet has dry plate, it is connected in the rectangular mesh in steel mesh case frame.The present invention solves current iron tailings and piles up on the technical problem of the generation influence of environment and prepare the good prefabricated steel framework wallboard of thermal and insulating performance using iron tailings foam concrete, for building provides a kind of novel wall product.
Description
Technical field
The present invention relates to a kind of exterior wall technical field of assembled architecture, particularly a kind of iron tailings foam concrete and
Prefabricated steel framework wallboard and its construction method.
Background technology
Foam concrete although entitled concrete, but it is different from normal concrete, be by foaming agent through high-speed stirred or
The slurry that the foam that air pressure spray is formed stirs with Binder Materials, additive, aglite and water is in stirring container
It is interior through uniform stirring after, pour the product that is shaped to all size or scene sprinkling irrigation, a kind of porous light concrete for pouring, category
In a kind of novel environment-friendly material of environmental protection and energy saving, with light weight, mechanical property is good, thermal property is superior, anti-knock shock resistance
The characteristics such as performance is good, sound insulation and noise reduction.
Additionally, the huge trade waste iron tailings of the current accumulating amount of China, it not only occupies a large amount of soils, also results in
The serious environmental problems such as airborne dust, integrated application of the iron tailings in construction material is the minimizing for realizing iron tailings, innoxious, money
Source, realizes the effective way of bargh's energy-saving and emission-reduction.Meanwhile, also for building sand have found a kind of preferable raw material,
And for the harmless treatment of bargh's iron tailings provides a road for sustainable development.
In recent years, foam concrete heat-preserving wallboard has obtained increasing concern and research, and this depends primarily on its material
The superior function of material, the inorganic heat preservation that develops into of foam concrete heat-preserving wallboard has stepped major step, and its application is solved in recent years
Carry out a series of shortcomings such as inorganic heat-insulation board cost is high, water absorption rate is high, short life.Additionally, foam concrete heat-preserving wallboard can be with
Realize other functions in addition to insulation, such as, sound insulating and absorbing, protecting against shock etc., to realize the application of foam concrete heat-preserving wallboard
Opportunity is brought with popularization.
The content of the invention
The present invention proposes a kind of iron tailings foam concrete and prefabricated steel framework wallboard and its construction method, to solve at present
Iron tailings is piled up to the technical problem of environmental effects and good using iron tailings foam concrete preparation thermal and insulating performance
Good prefabricated steel framework wallboard, for building provides a kind of novel wall product.
Technical solution of the present invention is as follows.
A kind of iron tailings foam concrete, it is characterised in that the component including following weight portion.
Cement：55 parts~65 parts；
Iron tailings sand：20 parts~30 parts；
Ground pumice：10 parts~20 parts；
Foaming agent：6 parts~10 parts；
Hydrophober：1 part~2 parts；
Early strength agent：1.5 parts~2 parts；
Water：65 parts~75 parts.
Preferably, the iron tailings sand be mining site discharge discarded object by after sieving be obtained, it is no longer levigate by machine,
The modulus of fineness of iron tailings sand is 1.6~2.2；The content of the composition of iron tailings sand and each composition is as follows：
Preferably, the cement is normal silicate or silicate PO42.5 cement, and cement surface product is more than 300m2/
kg。
Preferably, the content of the composition of the ground pumice and each composition is as follows：
Preferably, the foaming agent is HTQ-1 composite foamable agents or hydrogen peroxide or azodiisobutyronitrile and/or azo
Dioctyl phthalate diisopropyl ester；
The hydrophober is calcium stearate and/or polysiloxanes and/or methyl silicon sodium alcoholate.
A kind of prefabricated steel framework wallboard of iron tailings foam concrete, includes steel mesh case frame, is connected to steel mesh case frame
In steel fabric sheet and the iron tailings bubble concrete layer that is cast in outside steel mesh case frame and steel fabric sheet；The steel mesh gridiron
Frame is rectangular lattice structure, including upper nose girder, lower nose girder, vertical supporting and cross-brace；
The upper nose girder and the lower longitudinally parallel interval of nose girder, wherein upper nose girder is horizontally set on the top of steel mesh case frame
At position, lower nose girder is horizontally set at the bottom position of steel mesh case frame；The vertical supporting has one group, transversely parallel
Every being connected between upper nose girder and lower nose girder；On the vertical supporting, one group of hole is provided with along its long axis direction uniform intervals；Institute
Cross-brace is stated to be connected between adjacent two vertical supporting parallel to upper nose girder and lower nose girder, interval；If the steel fabric sheet has
Dry plate, is connected in the rectangular mesh in steel mesh case frame.
Preferably, the upper nose girder, lower nose girder, vertical supporting and cross-brace are zinc-plated light gauge cold-formed steel shape and are made；
Steel wire in the steel fabric sheet is the ㎜ cold drawn wires of diameter 3~5；The steel fabric sheet is welded in rectangle net in steel mesh case frame
The front and rear both sides of lattice.
A kind of preparation method of prefabricated steel framework wallboard, it is characterised in that：Comprise the following steps,
Step one, upper nose girder, lower nose girder, the quantity of vertical supporting and cross-brace, size according to structure design and
Away from the zinc-plated light gauge cold-formed steel shape of cutting, and one group of hole is opened up in the vertical supporting uniform intervals；
Step 2, upper nose girder, lower nose girder, vertical supporting and cross-brace are welded into the steel mesh case frame of wall；
Step 3, steel fabric sheet is respectively welded at the front and rear both sides of rectangular mesh in steel mesh case frame；
Step 4, the physical dimension installation form according to wall, spacing is left between the template and steel mesh case frame；
Step 5, by the gross weight and the mass percent of each component of concrete to be prepared in iron tailings bubble concrete layer
Cement, iron tailings sand, ground pumice, hydrophober and early strength agent are weighed, load weighted material are poured into mixer and is stirred 1~2min,
It is subsequently adding 65 parts~75 parts of water to continue to stir 1~2min, slurry is stirred；Wherein the mass percent of each component is water
55 parts~65 parts of mud, 20 parts~30 parts of iron tailings sand, 10 parts~20 parts of ground pumice, 1 part~2 parts of hydrophober, 1.5 parts of early strength agent~
2 parts；
Step 6, by mass percentage to 6 parts~10 parts of foaming agent of addition in the slurry of step 5 preparation, stirring 30s~
45s, stops 10~20min by the iron tailings foam concrete of preparation is quiet；
Step 7, will prepare the iron tailings foam concrete for completing and pours in wall form；
Step 8, after iron tailings foam concrete reaches strength of mould stripping, form removal, then natural curing must not be less than 7d, iron
The prefabricated steel framework wallboard of tailing foam concrete is to prepare to complete.
Preferably, the composition of the iron tailings sand and the content of each composition are as follows：
Preferably, the composition of the ground pumice and the content of each composition are as follows：
Compared with prior art the invention has the characteristics that and beneficial effect.
1st, the present invention adds the iron tailings sand of 20 parts~30 parts of weight portion in compound, that is, ensure the pressure resistance of concrete
Degree, and admixture trade waste iron tailings as much as possible, can farthest improve waste utilization；If in the present invention
Change iron tailings addition content, add to have an impact for concrete strength, plus few waste utilization does not reach maximization；So, this
Invention more improves Tailings utilization added value while mine tailing accumulation is solved, and is not only simply to be filled with it；Remove
Outside this, the iron tailings sand of this volume and this composition make use of to replace normal sands, with economizing on resources, reduce environmental pollution
Advantage.
2nd, the SiO in iron tailings sand of the present invention2Component content is up to 50%, due to SiO2Content to the hard of iron tailings
Degree plays very big effect, SiO2Content it is high, the hardness of iron tailings is big, and then the intensity of concrete is substantially increased.
3rd, in concrete of the invention cement simultaneously add iron tailings sand, cement, ground pumice and each additive, they
During the mix of concrete, interact, not only the workability that improve the concrete of high degree, and it is mixed to this
The performances such as solidifying soil intensity, impervious and durability have different degrees of raising.
4th, the present invention in iron tailings foam concrete due to having filled weight than the hydrophober for 1 part~2 parts and weight ratio
It is 6 parts~10 parts of foaming agent so that the iron tailings foam concrete waterproof effect is preferable, the obtained foam concrete
The features such as with lightweight, insulation, fire prevention, hydrophobic.
5th, the present invention produces iron tailings foam concrete for precast wall panel, is connected to form entirety by with steel framework,
Structural thermal insulation integrated plate is obtained, for building outer wall technical field provides a kind of novel product.
6th, it is provided with hole on the vertical supporting of prefabricated steel framework wallboard in the present invention, hole is by the concrete of vertical supporting both sides
Communicate, it is produced dowel action, enhancing concrete and the connection of vertical supporting with vertical supporting, make concrete be difficult to peel off.
7th, the steel mesh case frame of wall described in prefabricated steel framework wallboard passes through weldering using zinc-plated light gauge cold-formed steel shape in the present invention
Connect and be made, strength of wall body, rigidity and the stability being thus made all preferably and are conducted oneself with dignity relatively gently, reduce building weight.
Brief description of the drawings
Fig. 1 is the prefabricated steel framework panel structure organigram of iron tailings foam concrete.
Fig. 2 is wallboard steel framework structural representation.
Reference：1-upper nose girder, 2-vertical supporting, 3-cross-brace, 4-hole, 5-steel fabric sheet, 6-iron
Tailing foam concrete layer, 7-lower nose girder.
Specific embodiment
The invention provides in a kind of iron tailings foam concrete and prefabricated steel framework wallboard and its construction method, including wall
Steel mesh case frame, steel fabric sheet and environmental protection iron tailings foam concrete.
Embodiment 1：
This iron tailings foam concrete, including following weight portion component：
60 parts of cement, 25 parts of iron tailings sand, 15 parts of ground pumice, 8 parts of foaming agent, 1.5 parts of hydrophober, 1.8 parts of early strength agent, water
70 parts.
In the present embodiment, the iron tailings sand be mining site discharge discarded object by after sieving be obtained, without secondary levigate
Directly use, modulus of fineness is 1.6~2.2；The content of the composition of iron tailings sand and each composition is as follows：
In the present embodiment, the cement is normal silicate PO42.5 cement, and cement surface product is more than 300m2/kg。
Certainly in other embodiments, cement can also use silicate PO42.5 cement.
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
In the present embodiment, the foaming agent uses chemical blowing process, using dioxygen Water blown；
Certainly in other embodiments, it is HTQ-1 composite foamable agents or azodiisobutyronitrile, idol that foaming agent can also be used
One or more in nitrogen dioctyl phthalate diisopropyl ester；
In the present embodiment, the hydrophober is calcium stearate
Certainly in other embodiments, hydrophober can also be using the one kind in polysiloxanes or methyl silicon sodium alcoholate.
According to《People's Republic of China's building industry professional standard -- foam concrete》Middle related code, the present invention is to more
Group 100mm × 100mm × 100mm test specimens have measured iron tailings foam concrete compression strength, have imported coefficient, dry density and water suction
The indexs such as rate, result of the test see the table below.
As depicted in figs. 1 and 2, the prefabricated steel framework wallboard containing above-mentioned iron tailings foam concrete, includes steel mesh gridiron
Frame, the steel fabric sheet 5 being connected in steel mesh case frame and the iron tailings foam being cast in outside steel mesh case frame and steel fabric sheet 5
Concrete layer 6；The steel mesh case frame be rectangular lattice structure, including upper nose girder 1, lower nose girder 7, vertical supporting 2 and laterally branch
Support 3；The upper nose girder 1 and the longitudinally parallel interval of lower nose girder 7, wherein upper nose girder 1 is horizontally set on the top of steel mesh case frame
At position, lower nose girder 7 is horizontally set at the bottom position of steel mesh case frame；The vertical supporting 2 has one group, transversely parallel
Interval is connected between nose girder 1 and lower nose girder 7；On the vertical supporting 2, one group of hole is provided with along its long axis direction uniform intervals
Hole 4；
The cross-brace 3 is connected between adjacent two vertical supporting 2 parallel to upper nose girder 1 and lower nose girder 7, interval；
If the steel fabric sheet 5 has dry plate, it is connected in the rectangular mesh in steel mesh case frame.
In the present embodiment, the upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are zinc-plated cold bending thin wall type
Steel is made；
Steel wire in the steel fabric sheet 5 uses the ㎜ cold drawn wires of diameter 3~5；The steel fabric sheet 5 is welded in steel lattice
The front and rear both sides of rectangular mesh in framework.
The preparation method of this prefabricated steel framework wallboard, comprises the following steps.
Step one, quantity, the size of upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 according to structure design
Zinc-plated light gauge cold-formed steel shape is cut with spacing, and one group of hole 4 is opened up in the uniform intervals of the vertical supporting 2.
Step 2, upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are welded into the steel mesh case frame of wall.
Step 3, steel fabric sheet 5 is respectively welded at the front and rear both sides of rectangular mesh in steel mesh case frame.
Step 4, the physical dimension installation form according to wall, spacing is left between the template and steel mesh case frame.
Step 5, by the gross weight and the quality percentage of each component of concrete to be prepared in iron tailings bubble concrete layer 6
Than weighing cement, iron tailings sand, ground pumice, hydrophober and early strength agent, by load weighted material pour into mixer stirring 1~
2min, is subsequently adding 70 parts of water and continues to stir 1~2min, slurry is stirred；Wherein the mass percent of each component is water
60 parts of mud, 25 parts of iron tailings sand, 15 parts of ground pumice, 1.5 parts of hydrophober, 1.8 parts of early strength agent.
Step 6, by mass percentage to 8 parts of foaming agent is added in the slurry of step 5 preparation, stirs 30s~45s, will
The iron tailings foam concrete of preparation is quiet to stop 10~20min；
Step 7, will prepare the iron tailings foam concrete for completing and pours in wall form.
Step 8, after iron tailings foam concrete reaches strength of mould stripping, form removal, then natural curing must not be less than 7d, iron
The prefabricated steel framework wallboard of tailing foam concrete is to prepare to complete.
In the present embodiment, the composition of the iron tailings sand and the content of each composition are as follows：
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
Embodiment 2：
This iron tailings foam concrete, including following weight portion component.
55 parts of cement, 25 parts of iron tailings sand, 20 parts of ground pumice, 6 parts of foaming agent, 2 parts of hydrophober, 1.5 parts of early strength agent, water 65
Part.
In the present embodiment, the iron tailings sand be mining site discharge discarded object by after sieving be obtained, without secondary levigate
Directly use, modulus of fineness is 1.6~2.2；The content of the composition of iron tailings sand and each composition is as follows：
In the present embodiment, the cement is normal silicate PO42.5 cement, and cement surface product is more than 300m2/kg。
Certainly in other embodiments, cement can also use silicate PO42.5 cement.
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
In the present embodiment, the foaming agent uses chemical blowing process, using dioxygen Water blown；
Certainly in other embodiments, it is HTQ-1 composite foamable agents or azodiisobutyronitrile, idol that foaming agent can also be used
One or more in nitrogen dioctyl phthalate diisopropyl ester；
In the present embodiment, the hydrophober is calcium stearate
Certainly in other embodiments, hydrophober can also be using the one kind in polysiloxanes or methyl silicon sodium alcoholate.
According to《People's Republic of China's building industry professional standard -- foam concrete》Middle related code, the present invention is to more
Group 100mm × 100mm × 100mm test specimens have measured iron tailings foam concrete compression strength, have imported coefficient, dry density and water suction
The indexs such as rate, result of the test see the table below.
Prefabricated steel framework wallboard containing above-mentioned iron tailings foam concrete, includes steel mesh case frame, is connected to steel lattice
Steel fabric sheet 5 in framework and the iron tailings bubble concrete layer 6 being cast in outside steel mesh case frame and steel fabric sheet 5；It is described
Steel mesh case frame is rectangular lattice structure, including upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3；The upper nose girder 1
With the longitudinally parallel interval of lower nose girder 7, wherein upper nose girder 1 is horizontally set at the apical position of steel mesh case frame, the lower water of nose girder 7
It is flat to be arranged at the bottom position of steel mesh case frame；The vertical supporting 2 has one group, and transversely parallel interval is connected to nose girder
Between 1 and lower nose girder 7；On the vertical supporting 2, one group of hole 4 is provided with along its long axis direction uniform intervals；The cross-brace
3 are connected between adjacent two vertical supporting 2 parallel to upper nose girder 1 and lower nose girder 7, interval；If the steel fabric sheet 5 has dry plate,
It is connected in the rectangular mesh in steel mesh case frame.
In the present embodiment, the upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are zinc-plated cold bending thin wall type
Steel is made；Steel wire in the steel fabric sheet 5 uses the ㎜ cold drawn wires of diameter 3~5；The steel fabric sheet 5 is welded in steel lattice
The front and rear both sides of rectangular mesh in framework.
The preparation method of this prefabricated steel framework wallboard, comprises the following steps.
Step one, quantity, the size of upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 according to structure design
Zinc-plated light gauge cold-formed steel shape is cut with spacing, and one group of hole 4 is opened up in the uniform intervals of the vertical supporting 2.
Step 2, upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are welded into the steel mesh case frame of wall.
Step 3, steel fabric sheet 5 is respectively welded at the front and rear both sides of rectangular mesh in steel mesh case frame.
Step 4, the physical dimension installation form according to wall, spacing is left between the template and steel mesh case frame.
Step 5, by the gross weight and the quality percentage of each component of concrete to be prepared in iron tailings bubble concrete layer 6
Than weighing cement, iron tailings sand, ground pumice, hydrophober and early strength agent, by load weighted material pour into mixer stirring 1~
2min, is subsequently adding 65 parts of water and continues to stir 1~2min, slurry is stirred；Wherein the mass percent of each component is water
55 parts of mud, 25 parts of iron tailings sand, 20 parts of ground pumice, 2 parts of hydrophober, 1.5 parts of early strength agent.
Step 6, by mass percentage to 6 parts of foaming agent is added in the slurry of step 5 preparation, stirs 30s~45s, will
The iron tailings foam concrete of preparation is quiet to stop 10~20min.
Step 7, will prepare the iron tailings foam concrete for completing and pours in wall form.
Step 8, after iron tailings foam concrete reaches strength of mould stripping, form removal, then natural curing must not be less than 7d, iron
The prefabricated steel framework wallboard of tailing foam concrete is to prepare to complete.
In the present embodiment, the composition of the iron tailings sand and the content of each composition are as follows：
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
Embodiment 3：
This iron tailings foam concrete, including following weight portion component.
65 parts of cement, 20 parts of iron tailings sand, 15 parts of ground pumice, 10 parts of foaming agent, 1 part of hydrophober, 2 parts of early strength agent, water 75
Part.
In the present embodiment, the iron tailings sand be mining site discharge discarded object by after sieving be obtained, without secondary levigate
Directly use, modulus of fineness is 1.6~2.2；The content of the composition of iron tailings sand and each composition is as follows：
In the present embodiment, the cement is normal silicate PO42.5 cement, and cement surface product is more than 300m2/kg。
Certainly in other embodiments, cement can also use silicate PO42.5 cement.
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
In the present embodiment, the foaming agent uses chemical blowing process, using dioxygen Water blown；
Certainly in other embodiments, it is HTQ-1 composite foamable agents or azodiisobutyronitrile, idol that foaming agent can also be used
One or more in nitrogen dioctyl phthalate diisopropyl ester；
In the present embodiment, the hydrophober is calcium stearate
Certainly in other embodiments, hydrophober can also be using the one kind in polysiloxanes or methyl silicon sodium alcoholate.
According to《People's Republic of China's building industry professional standard -- foam concrete》Middle related code, the present invention is to more
Group 100mm × 100mm × 100mm test specimens have measured iron tailings foam concrete compression strength, have imported coefficient, dry density and water suction
The indexs such as rate, result of the test see the table below.
Prefabricated steel framework wallboard containing above-mentioned iron tailings foam concrete, includes steel mesh case frame, is connected to steel lattice
Steel fabric sheet 5 in framework and the iron tailings bubble concrete layer 6 being cast in outside steel mesh case frame and steel fabric sheet 5；It is described
Steel mesh case frame is rectangular lattice structure, including upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3；The upper nose girder 1
With the longitudinally parallel interval of lower nose girder 7, wherein upper nose girder 1 is horizontally set at the apical position of steel mesh case frame, the lower water of nose girder 7
It is flat to be arranged at the bottom position of steel mesh case frame；The vertical supporting 2 has one group, and transversely parallel interval is connected to nose girder
Between 1 and lower nose girder 7；On the vertical supporting 2, one group of hole 4 is provided with along its long axis direction uniform intervals；The cross-brace
3 are connected between adjacent two vertical supporting 2 parallel to upper nose girder 1 and lower nose girder 7, interval；If the steel fabric sheet 5 has dry plate,
It is connected in the rectangular mesh in steel mesh case frame.
In the present embodiment, the upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are zinc-plated cold bending thin wall type
Steel is made；Steel wire in the steel fabric sheet 5 uses the ㎜ cold drawn wires of diameter 3~5；The steel fabric sheet 5 is welded in steel lattice
The front and rear both sides of rectangular mesh in framework.
The preparation method of this prefabricated steel framework wallboard, comprises the following steps.
Step one, quantity, the size of upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 according to structure design
Zinc-plated light gauge cold-formed steel shape is cut with spacing, and one group of hole 4 is opened up in the uniform intervals of the vertical supporting 2.
Step 2, upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are welded into the steel mesh case frame of wall.
Step 3, steel fabric sheet 5 is respectively welded at the front and rear both sides of rectangular mesh in steel mesh case frame.
Step 4, the physical dimension installation form according to wall, spacing is left between the template and steel mesh case frame.
Step 5, by the gross weight and the quality percentage of each component of concrete to be prepared in iron tailings bubble concrete layer 6
Than weighing cement, iron tailings sand, ground pumice, hydrophober and early strength agent, by load weighted material pour into mixer stirring 1~
2min, is subsequently adding 75 parts of water and continues to stir 1~2min, slurry is stirred；Wherein the mass percent of each component is water
65 parts of mud, 20 parts of iron tailings sand, 15 parts of ground pumice, 1 part of hydrophober, 2 parts of early strength agent.
Step 6, by mass percentage to 10 parts of foaming agent is added in the slurry of step 5 preparation, stirs 30s~45s, will
The iron tailings foam concrete of preparation is quiet to stop 10~20min.
Step 7, will prepare the iron tailings foam concrete for completing and pours in wall form.
Step 8, after iron tailings foam concrete reaches strength of mould stripping, form removal, then natural curing must not be less than 7d, iron
The prefabricated steel framework wallboard of tailing foam concrete is to prepare to complete.
In the present embodiment, the composition of the iron tailings sand and the content of each composition are as follows：
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
Embodiment 4：
This iron tailings foam concrete, including following weight portion component.
60 parts of cement, 30 parts of iron tailings sand, 10 parts of ground pumice, 9 parts of foaming agent, 1.8 parts of hydrophober, 1.8 parts of early strength agent, water
72 parts.
In the present embodiment, the iron tailings sand be mining site discharge discarded object by after sieving be obtained, without secondary levigate
Directly use, modulus of fineness is 1.6~2.2；The content of the composition of iron tailings sand and each composition is as follows；
In the present embodiment, the cement is normal silicate PO42.5 cement, and cement surface product is more than 300m2/kg。
Certainly in other embodiments, cement can also use silicate PO42.5 cement.
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
In the present embodiment, the foaming agent uses chemical blowing process, using dioxygen Water blown；
Certainly in other embodiments, it is HTQ-1 composite foamable agents or azodiisobutyronitrile, idol that foaming agent can also be used
One or more in nitrogen dioctyl phthalate diisopropyl ester；
In the present embodiment, the hydrophober is calcium stearate
Certainly in other embodiments, hydrophober can also be using the one kind in polysiloxanes or methyl silicon sodium alcoholate.
According to《People's Republic of China's building industry professional standard -- foam concrete》Middle related code, the present invention is to more
Group 100mm × 100mm × 100mm test specimens have measured iron tailings foam concrete compression strength, have imported coefficient, dry density and water suction
The indexs such as rate, result of the test see the table below.
Prefabricated steel framework wallboard containing above-mentioned iron tailings foam concrete, includes steel mesh case frame, is connected to steel lattice
Steel fabric sheet 5 in framework and the iron tailings bubble concrete layer 6 being cast in outside steel mesh case frame and steel fabric sheet 5；It is described
Steel mesh case frame is rectangular lattice structure, including upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3；The upper nose girder 1
With the longitudinally parallel interval of lower nose girder 7, wherein upper nose girder 1 is horizontally set at the apical position of steel mesh case frame, the lower water of nose girder 7
It is flat to be arranged at the bottom position of steel mesh case frame；The vertical supporting 2 has one group, and transversely parallel interval is connected to nose girder
Between 1 and lower nose girder 7；On the vertical supporting 2, one group of hole 4 is provided with along its long axis direction uniform intervals；The cross-brace
3 are connected between adjacent two vertical supporting 2 parallel to upper nose girder 1 and lower nose girder 7, interval；If the steel fabric sheet 5 has dry plate,
It is connected in the rectangular mesh in steel mesh case frame.
In the present embodiment, the upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are zinc-plated cold bending thin wall type
Steel is made；Steel wire in the steel fabric sheet 5 uses the ㎜ cold drawn wires of diameter 3~5；The steel fabric sheet 5 is welded in steel lattice
The front and rear both sides of rectangular mesh in framework.
The preparation method of this prefabricated steel framework wallboard, comprises the following steps.
Step one, quantity, the size of upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 according to structure design
Zinc-plated light gauge cold-formed steel shape is cut with spacing, and one group of hole 4 is opened up in the uniform intervals of the vertical supporting 2.
Step 2, upper nose girder 1, lower nose girder 7, vertical supporting 2 and cross-brace 3 are welded into the steel mesh case frame of wall.
Step 3, steel fabric sheet 5 is respectively welded at the front and rear both sides of rectangular mesh in steel mesh case frame.
Step 4, the physical dimension installation form according to wall, spacing is left between the template and steel mesh case frame.
Step 5, by the gross weight and the quality percentage of each component of concrete to be prepared in iron tailings bubble concrete layer 6
Than weighing cement, iron tailings sand, ground pumice, hydrophober and early strength agent, by load weighted material pour into mixer stirring 1~
2min, is subsequently adding 72 parts of water and continues to stir 1~2min, slurry is stirred；Wherein the mass percent of each component is water
60 parts of mud, 30 parts of iron tailings sand, 10 parts of ground pumice, 1.8 parts of hydrophober, 1.8 parts of early strength agent.
Step 6, by mass percentage to 9 parts of foaming agent is added in the slurry of step 5 preparation, stirs 30s~45s, will
The iron tailings foam concrete of preparation is quiet to stop 10~20min.
Step 7, will prepare the iron tailings foam concrete for completing and pours in wall form.
Step 8, after iron tailings foam concrete reaches strength of mould stripping, form removal, then natural curing must not be less than 7d, iron
The prefabricated steel framework wallboard of tailing foam concrete is to prepare to complete.
In the present embodiment, the composition of the iron tailings sand and the content of each composition are as follows：
In the present embodiment, the content of the composition of the ground pumice and each composition is as follows：
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention covers people in the art
Member according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (10)
1. a kind of iron tailings foam concrete, it is characterised in that the component including following weight portion：
Cement：55 parts~65 parts；
Iron tailings sand：20 parts~30 parts；
Ground pumice：10 parts~20 parts；
Foaming agent：6 parts~10 parts；
Hydrophober：1 part~2 parts；
Early strength agent：1.5 parts~2 parts；
Water：65 parts~75 parts.
2. a kind of iron tailings foam concrete according to claim 1, it is characterised in that：The iron tailings sand is arranged for mining site
The discarded object put is no longer levigate by machine by being obtained after sieving, and the modulus of fineness of iron tailings sand is 1.6~2.2；Iron tailings
The content of the composition of sand and each composition is as follows：
3. a kind of iron tailings foam concrete according to claim 2, it is characterised in that：The cement is normal silicate
Or silicate PO42.5 cement, cement surface product is more than 300m2/kg。
4. a kind of iron tailings foam concrete according to claim 3, it is characterised in that：The float stone meal component and it is each into
The content divided is as follows：
5. a kind of iron tailings foam concrete according to claim 4, it is characterised in that：The foaming agent is multiple for HTQ-1
Close foaming agent or hydrogen peroxide or azodiisobutyronitrile and/or diisopropyl azodiformate；The hydrophober is stearic acid
Calcium and/or polysiloxanes and/or methyl silicon sodium alcoholate.
6. the prefabricated steel framework wallboard of the iron tailings foam concrete in a kind of 3-5 containing claim described in any one, it is special
Levy and be：Include steel mesh case frame, the steel fabric sheet (5) being connected in steel mesh case frame and be cast in steel mesh case frame and
Steel fabric sheet (5) iron tailings bubble concrete layer (6) outward；The steel mesh case frame is rectangular lattice structure, including upper nose girder
(1), lower nose girder (7), vertical supporting (2) and cross-brace (3)；
The upper nose girder (1) and lower nose girder (7) longitudinally parallel interval, wherein upper nose girder (1) is horizontally set on steel mesh case frame
Apical position at, lower nose girder (7) is horizontally set at the bottom position of steel mesh case frame；
The vertical supporting (2) has one group, and transversely parallel interval is connected between nose girder (1) and lower nose girder (7)；It is described perpendicular
To in support (2), one group of hole (4) is provided with along its long axis direction uniform intervals；
The cross-brace (3) parallel to upper nose girder (1) and lower nose girder (7), interval be connected to adjacent two vertical supporting (2) it
Between；
The steel fabric sheet (5) is connected in the rectangular mesh in steel mesh case frame if there is dry plate.
7. prefabricated steel framework wallboard according to claim 6, it is characterised in that：It is the upper nose girder (1), lower nose girder (7), vertical
Support (2) and cross-brace (3) are zinc-plated light gauge cold-formed steel shape and are made；
Steel wire in the steel fabric sheet (5) is the ㎜ cold drawn wires of diameter 3~5；The steel fabric sheet (5) is welded in steel mesh gridiron
The front and rear both sides of rectangular mesh in frame.
8. the preparation method of the prefabricated steel framework wallboard described in a kind of claim 7, it is characterised in that：Comprise the following steps,
Step one, upper nose girder (1), lower nose girder (7), the quantity of vertical supporting (2) and cross-brace (3) according to structure design,
Size cuts zinc-plated light gauge cold-formed steel shape with spacing, and opens up one group of hole (4) in the vertical supporting (2) uniform intervals；
Step 2, upper nose girder (1), lower nose girder (7), vertical supporting (2) and cross-brace (3) are welded into the steel mesh gridiron of wall
Frame；
Step 3, steel fabric sheet (5) is respectively welded at the front and rear both sides of rectangular mesh in steel mesh case frame；
Step 4, the physical dimension installation form according to wall, spacing is left between the template and steel mesh case frame；
Step 5, by the gross weight and the mass percent of each component of concrete to be prepared in iron tailings bubble concrete layer (6)
Cement, iron tailings sand, ground pumice, hydrophober and early strength agent are weighed, load weighted material are poured into mixer and is stirred 1~2min,
It is subsequently adding 65 parts~75 parts of water to continue to stir 1~2min, slurry is stirred；Wherein the mass percent of each component is water
55 parts~65 parts of mud, 20 parts~30 parts of iron tailings sand, 10 parts~20 parts of ground pumice, 1 part~2 parts of hydrophober, 1.5 parts of early strength agent~
2 parts；
Step 6, by mass percentage to 6 parts~10 parts of foaming agent is added in the slurry of step 5 preparation, stirs 30s~45s,
Stop 10~20min by the iron tailings foam concrete of preparation is quiet；
Step 7, will prepare the iron tailings foam concrete for completing and pours in wall form；
Step 8, after iron tailings foam concrete reaches strength of mould stripping, form removal, then natural curing must not be less than 7d, iron tailings
The prefabricated steel framework wallboard of foam concrete is to prepare to complete.
9. a kind of construction method of the prefabricated steel framework wallboard of iron tailings foam concrete according to claim 8, its feature exists
In：
The content of the iron tailings sand composition and each composition is as follows；
10. a kind of construction method of the prefabricated steel framework wallboard of iron tailings foam concrete according to claim 9, its feature exists
In：The content of the composition of the ground pumice and each composition is as follows：
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| CN112430027A (en) * | 2020-12-24 | 2021-03-02 | 陕西科技大学 | Fiber-reinforced foam concrete based on cow hair and preparation method thereof |
| CN113896462A (en) * | 2021-10-12 | 2022-01-07 | 华北水利水电大学 | Method for strengthening cold-bending thin-wall steel column based on geopolymer foam concrete |
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| CN107447916A (en) * | 2017-08-30 | 2017-12-08 | 河北建筑工程学院 | A kind of assembled foam concrete compound external wall panel and its construction method |
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| CN109440966A (en) * | 2018-12-13 | 2019-03-08 | 沈阳建筑大学 | A kind of light steel frame-foam concrete-steel wire assembled wall and connection method |
| CN112430027A (en) * | 2020-12-24 | 2021-03-02 | 陕西科技大学 | Fiber-reinforced foam concrete based on cow hair and preparation method thereof |
| CN113896462A (en) * | 2021-10-12 | 2022-01-07 | 华北水利水电大学 | Method for strengthening cold-bending thin-wall steel column based on geopolymer foam concrete |
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