CN108275947A - A kind of Reactive Powder Concrete, assembled combined wall board and preparation method thereof - Google Patents
A kind of Reactive Powder Concrete, assembled combined wall board and preparation method thereof Download PDFInfo
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- CN108275947A CN108275947A CN201810139799.0A CN201810139799A CN108275947A CN 108275947 A CN108275947 A CN 108275947A CN 201810139799 A CN201810139799 A CN 201810139799A CN 108275947 A CN108275947 A CN 108275947A
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- reactive powder
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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
-
- 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
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
-
- 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
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/46—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose specially adapted for making walls
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
Abstract
The present invention provides a kind of assembled combined wall boards and preparation method thereof.A kind of Reactive Powder Concrete is mainly made of following material:By weight, 80~100 parts of dry powder, 8~12 parts of water and 1.2~2 parts of fibers;The dry powder includes:By weight, 0.2~0.5 part of 60~70 parts of 52.5 strength grade ordinary portland cement, 5~10 parts of silicon ash, 10~20 parts of slag, 120~150 parts of 20 80 mesh quartz sand and water-reducing agent.Compared with prior art, silicon ash and the content of quartz sand are reduced in Reactive Powder Concrete of the invention, and cost decreases;However the present invention does not sacrifice other characteristics, and the good characteristics such as concrete crushing strength is high, density is low are maintained by adjusting the ratio of other additives.
Description
Technical field
The present invention relates to building materials technology fields, multiple more particularly, to the assembled of a kind of Reactive Powder Concrete and its composition
Close wallboard and preparation method thereof.
Background technology
Currently, architectural energy consumption is arranged side by side with industrial consumption energy, traffic energy consumption, become AND ENERGY RESOURCES CONSUMPTION IN CHINA three " are consumed energy big greatly
The energy consumption (including construction energy consumption, life energy consumption, heating air conditioning etc.) at family ", building accounts for about the 30% of whole society's total energy consumption, wherein most
Important is heating and air-conditioning, account for 20%.Therefore, building wall Construction technology of outer thermal insulation just comes into being, however in recent years due to
Wall thermal insulation material poor flame retardant properties and the fire incident that causes is continuous, cause heavy losses to the lives and properties of the country and people,
So selection one kind can meet power conservation requirement and fire-retardant wall thermal insulation material and just be particularly important.
Prefabricated assembled concrete structure is the main body knot being assembled by reliable connection type by concrete component
Structure, including assemble concrete structure, assembled monolithic concrete structure entirely etc., all or part of structural elements is pre- in factory
System, in-site installation, as a kind of structure type meeting industrialized production, have speed of application is fast, labor intensity is low,
The advantages such as noise pollution and the few and easy to control the quality system of wet construction.The popularization of prefabricated assembled concrete structure will largely drop
The energy consumption that low architectural process generates, and the processing of the insulation of building enclosure has great meaning to the reduction of constructing operation energy consumption.
" sandwich " heat-insulating integral wallboard can be largely used in assembly concrete builds progradation." sandwich " sandwich type wall panel by
Internal lobe wallboard, thermal insulation board and leaf wallboard composition.Inside, by the insulating layer of energy conservation standard design respective thickness between wallboard, and lead to
It crosses dedicated connector and is connected to interior, leaf wall.
Patent application CN10517900A discloses a kind of preparation work of the ultra-thin Prefabricated heat-insulation wall plate for building industrialization
Skill, the technology have used Reactive Powder Concrete (i.e. RPC materials), and RPC materials are by 30~40 parts of dry powder phases, 1~3 part of water and 1
~3 parts of reinforcing fiber compositions, the group of dry powder phase become:75~85 parts of cement, 24~28 parts of silicon ash, 130~150 parts of quartz sand,
0.4~0.8 part of water-reducing agent;The number is mass parts.The RPC materials are by cement, silicon ash, quartz sand, water-reducing agent, fiber group
At wherein the higher silicon ash of cost, quartz sand volume are larger, and cement mixing content is also larger, cause material overall cost higher, unsuitable
It promotes.
In view of this, special propose the present invention.
Invention content
The first object of the present invention is a kind of Reactive Powder Concrete, which compares existing powder
Concrete material cost can reduce by 5%~10%, and the performances such as its compression strength, density, thermal coefficient can at least reach with
The same level of existing powder concrete.
The second object of the present invention is to provide the assembled combined wall board made of above-mentioned Reactive Powder Concrete, the dress
There are at low cost, ultralight ultra-thin, the high-efficiency insulated, good characteristics such as bearing capacity is big with formula combined wall board.
The third object of the present invention is to provide the preparation method of above-mentioned assembled combined wall board, preparation method flow letter
It is single, it is low to technology requirement, it is more easy to industrialized production.
In order to achieve the goal above, the present invention provides following technical schemes:
A kind of Reactive Powder Concrete is mainly made of following material:By weight, 80~100 parts of dry powder, 8~12 parts
Water and 1.2~2 parts of fibers;
The dry powder includes:By weight, 60~70 parts of cement, 5~10 parts of silicon ash, 10~20 parts of slag, quartz sand 120
~150 parts and 0.2~0.5 part of water-reducing agent.
Compared with prior art, silicon ash and the content of quartz sand are reduced in Reactive Powder Concrete of the invention, cost with
Reduction;However the present invention does not sacrifice other characteristics, maintains concrete anti-compression strong by adjusting the ratio of other additives
The good characteristics such as degree is high, density is low.
After testing, Reactive Powder Concrete density of the invention is 2460kg/m3Hereinafter, 28 days compression strength is reachable
110MPa or more, flexural strength is up to 16MPa or more.
The formula of the above Reactive Powder Concrete can also be further improved, specific as follows.
Preferably, the length of the fiber is 6~15mm, is alkali-resistant glass fibre, steel fibre, polypropylene fibre and the Black Warrior
Rock fiber it is one or more.
Preferably, the cement is 52.5 strength grade ordinary portland cements.
Preferably, the water-reducing agent is one kind of polycarboxylate water-reducer, naphthalene water reducer and melamine system water reducer.
Preferably, the quartz sand is 20~80 mesh.
Preferably, by weight, 80~90 parts of dry powder, 10~12 parts of water and 1.2~1.5 parts of fibers.
I.e. dry powder can use the arbitrary number between 80~90 parts, such as 80 parts, 82 parts, 84 parts, 85 parts, 87 parts, 90 parts etc.;
Arbitrary number between water is 10~12 parts desirable, such as 10 parts, 11 parts, 12 parts etc.;Appointing between fiber is 1.2~1.5 parts desirable
Meaning number, such as 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts etc..
Preferably, the dry powder includes:By weight, 60~65 parts of 52.5 strength grade ordinary portland cement, silicon ash 8~10
Part, 10~15 parts of slag, 135~150 parts of 20-80 mesh quartz sand and 0.2~0.4 part of water-reducing agent.
I.e. ordinary portland cement is 60 parts, 61 parts, 62 parts, 63 parts, 64 parts, 65 parts etc. desirable;Silicon ash is 8 parts, 9 parts, 10 parts etc. desirable;
Slag is 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts etc. desirable;Quartz sand is 135 parts, 140 parts, 145 parts, 150 parts etc. desirable,
Water-reducing agent is 0.2 part, 0.3 part, 0.4 part etc. desirable.
The all of above Reactive Powder Concrete of the present invention can be used for any part of arbitrary building, as long as its performance is full
Sufficient preset requirement.The present invention now enumerates decoration of one of the purposes of Reactive Powder Concrete-as assembled combined wall board
The concrete structure of protective layer, the assembled combined wall board is as follows:
The assembled combined wall board is exhausted including the first decoration protective layer, enhancement layer, the second decoration protective layer, vacuum successively
Hot plate layer and structure sheaf;
The first decoration protective layer and the second decoration protective layer are made of the Reactive Powder Concrete.
The combined wall board also has the advantage that in addition to the advantages of Reactive Powder Concrete is utilized:
1, this five layers protective layer, enhancement layer, the second decoration protective layer, vacuum heat-insulating plate layer and structure sheaf knot are decorated by first
Structure is integrated, and five layer materials are maximized favourable factors and minimized unfavourable ones each other, reaches the feature sets such as frivolous, high heat preservation, fire prevention, high intensity and high thermal technology's property
Integral effect;
2, enhancement layer is inserted in decorating protective layer, enhancement layer has intensity height and frivolous characteristic, therefore the present invention
Increase the bearing of wallboard without decorating the thickness of protective layer by increase, and also avoids blocked up decorative layer and be easy out
Phenomena such as splitting, seeping water.In addition, enhancement layer is also effectively blocked from extraneous unexpected sharp thorn power, to avoid thorn power to true
The damage of empty heat-insulating shield.
3, have many advantages, such as fire prevention, low thermal conductivity, nonhazardous as insulating layer using vacuum heat-insulating plate.Specifically, very
Empty heat-insulating shield is a kind of novel energy-conserving heat-insulating material, on the one hand utilizes vacuum insulation principle, can effectively eliminate convection effect;It is another
Aspect is controlled heat transfer in reasonable level, and can effectively reduce heat radiation by the optimum choice to core material.Vacuum insulation
Plate reaches heat preservation, energy-efficient insulation effect and mesh ideally due to combining two methods of vacuum insulation and micropore thermal insulation
's.
Preferably, the enhancement layer is high strength fibre grid cloth or steel fabric sheet.
High strength fibre grid of the present invention is furnished with the materials such as alkali-proof glass fiber mesh, basalt fibre grid cloth
Material.
Preferably, the structure sheaf is reinforced concrete floor.
Preferably, the vacuum heat-insulating plate layer is spliced by multiple vacuum heat-insulating plate fissure of displacement.
Fissure of displacement paving can avoid the formation of heat bridge, lead to problems such as to be easy infiltration, shorten building service life.
In addition, the insulating layer of the present invention is spliced by multiple small vacuum heat-insulating plates, it can be to avoid big vacuum insulation
Plate needs to cut the problem of causing heat insulation effect to reduce.
Preferably, the fissure of displacement distance of the fissure of displacement splicing is in 150mm or more.
Sufficiently long fissure of displacement distance could effectively avoid heat bridge problem.
Preferably, the width in each gap is in 10mm or less during the fissure of displacement splices.
Heat insulation effect rapid drawdown when gap is wide, therefore, it is suggested that gap width is no more than 10mm.
Preferably, connector, connector connection first decoration are equipped in the vacuum heat-insulating plate layer in gap
Protective layer, the enhancement layer, the second decoration protective layer and the structure sheaf.
Connector links together each layer of wallboard, increases the firmness of wallboard, while increasing its bearing capacity.
Preferably, the gap filling between the vacuum heat-insulating plate has polyester form or thermal insulation mortar.
The thermal coefficient of polyester form or thermal insulation mortar is low, and heat insulation effect is good, other heat insulation effects can also be used certainly more
Good material.
Preferably, it is described first decoration protective layer and second decoration protective layer thickness be respectively 25~40mm, 25~
40mm, the vacuum heat-insulating plate layer thickness are 10~20mm, and the thickness of the structure sheaf is 160mm.
If each layer uses above-mentioned thickness, the thermal property and load-bearing property of wallboard to obtain preferable balance in wallboard, i.e.,
The wallboard can be used as load bearing wall and good heat insulating ability.
Preferably, it is bonded by boundary mortar layer between the second decoration protective layer and the vacuum heat-insulating plate layer, institute
It states and is bonded by boundary mortar layer between vacuum heat-insulating plate layer and the structure sheaf.
Boundary mortar has stronger cohesive force, and on the two sides of vacuum heat-insulating plate layer, spraying boundary mortar can be effectively ensured
The adhesion strength of vacuum heat-insulating plate and decoration protective layer and structure sheaf.
Preferably, for the strength grade of the reinforced concrete floor in C30 or more, density is preferably 1500~1700kg/m3。
The armored concrete for meeting the rank has good bearing, the load for decorating protective layer can be transmitted to main body
In structure, and it is relatively low compared to traditional concrete density, have the advantages that lightweight.
Specifically, can be used as following formula:
Preferably, the reinforced concrete floor is mainly made of following material:By weight, 50~60 parts of cement, fine coal
3~10 parts of ash, 10~20 parts of slag, 60~80 parts of slag, 50~60 parts of haydite, 0.05~0.15 part of water-retaining agent, water-reducing agent 0.1
~0.2 part, 20~25 parts of water;
Preferably, the reinforced concrete floor is mainly made of following material:By weight, 50~55 parts of cement, fine coal
5~10 parts of ash, 10~15 parts of slag, 70~80 parts of slag, 50~55 parts of haydite, 0.1~0.15 part of water-retaining agent, water-reducing agent 0.1
~0.15 part, 22~25 parts of water;
Preferably, the cement is Portland cement, and strength grade is mixed for one or both of 42.5 or 42.5R
It closes;
Preferably, the flyash grade is one or both of I grades or II grades mixing;
Preferably, the slag grade is one or both of S95 grades or S105 grades mixing;
Preferably, the fineness modulus of the slag is 3.0~3.3, and bulk density is 1020~1080kg/m3;
Preferably, the haydite is lytag, it is preferable that the grain size of the haydite is 5~15mm, and bulk density is
840~870kg/m3, cylindrical compress strength >=5.0MPa.
Preferably, the water-reducing agent is one kind of polycarboxylate water-reducer, naphthalene water reducer and melamine system water reducer.
Preferably, the water-retaining agent is hydroxypropyl methyl cellulose.
Following preparation method can be used in above-mentioned all assembled combined wall boards of the present invention:
Step A:In spraying by the mold of releasing agent, pouring one layer of Reactive Powder Concrete, then described in paving
Then enhancement layer sprays another layer of Reactive Powder Concrete in the top of enhancement layer, form the second decoration protective layer;
Step B:Before the Reactive Powder Concrete initial set of the second decoration protective layer, the fissure of displacement is laid with multiple above
Vacuum heat-insulating plate is paved, blind, forms insulating layer;
Step C:The pouring reinforcement concrete above the insulating layer forms structure sheaf.
Above method first makes decoration protective layer, then again with the final paving of the sequence being layering to structure sheaf, the system
Standby flow does not conflict with the link for reserving " hanging ring, built-in fitting, pipeline, electrical box and preformed hole " in wallboard, and production efficiency is high, and
And interference between layers is small, product qualification rate higher, panel structure is more stable.
If not considering factors above, the sequence opposite with the above method can also be used and prepare wallboard.
It is laid with connector in the gap generated in the multiple vacuum heat-insulating plates of the laying;
Preferably, pre-buried hanging ring, built-in fitting, pipeline, electrical box and preformed hole between the insulating layer and the structure sheaf.
In addition, some pretreatment works can also be done before step A, such as platform is cleared up, builds side mould, reserve door and window
Hole.It is shaken in spraying when spraying Reactive Powder Concrete, to ensure that thickness is uniform.
To be laid with vacuum heat-insulating plate before Reactive Powder Concrete initial set, then 15~20min of placement is needed.
Anchorage length of the connector in unilateral wallboard not be preferably less than 15mm, door-window opening periphery fix anti-corrosion woodbox and
Vacuum heat-insulating plate carries out bridge cut-off processing;Cushion block is set, steel reinforcement cage, pre-buried hanging ring, built-in fitting, pipeline, electrical box, preformed hole are lifted
Deng.
After pouring structure layer, vibrate, catch up with light, natural curing or steam curing, polishing, smoothing, demoulding, lifting, code are also needed
Pile.
To sum up, compared with prior art, invention achieves following technique effects:
(1) of the invention Reactive Powder Concrete (RPC materials) cost reduction 5%~10%;
(2) comprehensive performance of Reactive Powder Concrete of the invention can at least reach the level same with existing RPC materials;
(3) it is prominent to integrate characteristics, the especially load-bearing properties such as fire prevention, heat preservation, frivolous and load-bearing to wallboard of the invention
Go out, more preferably, the scope of application is wider for comprehensive performance;Phenomena such as avoiding traditional sandwich assembled wallboard easy to crack, infiltration, heat bridge;
(4) wallboard preparation method flow of the invention is simple, and production efficiency is high.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram for the assembled combined wall board that the embodiment of the present invention 1 provides.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with the drawings and specific embodiments, but
Be it will be understood to those of skill in the art that it is following described embodiments are some of the embodiments of the present invention, rather than it is whole
Embodiment is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Based on the embodiments of the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without making creative work, belongs to guarantor of the present invention
The range of shield.The person that is not specified actual conditions in embodiment, carries out according to conventional conditions or manufacturer's recommended conditions.Agents useful for same
Or production firm person is not specified in instrument, is the conventional products that can be obtained by commercially available purchase.
Embodiment 1
Make assembled combined wall board
(1) platform is cleared up, side mould is built, reserves door-window opening, sprays releasing agent.
(2) even application 25mm thickness decorates RPC materials, paving enhancement layer;The formula of RPC materials is:80 grams of dry powder, 12 grams
Water and 1.2 grams of fibers;The formula of dry powder:0.5 gram of 70 grams of cement, 5 grams of silicon ash, 20 grams of slag, 120 grams of quartz sand and water-reducing agent,
The length of fiber is 6~15mm, is alkali-resistant glass fibre;Cement is 52.5 strength grade ordinary portland cements;Water-reducing agent is polycarboxylic acids
Series high-efficiency water-reducing agent, quartz sand are 20~80 mesh.Enhancement layer uses alkali-proof glass fiber mesh.
(3) and then on enhancement layer 40mm thickness decoration RPC materials (identical as the formula of second step) are sprayed again, will be decorated
Protective layer vibrations are coated with the vacuum heat-insulating plates of 0.5mm thickness interfacial agents to that after uniform thickness, should place two sides immediately, and (thickness is
10mm).Standing time should control within the scope of 15~20min, ensure that decoration RPC materials are not up to pre-hardening state.
(4) when vacuum heat-insulating plate paving, the fissure of displacement is answered between plate and plate, the Local Minimum fissure of displacement is no less than 150mm, at external corner
Vacuum heat-insulating plate answers interlaced arrangement or uses special matching board, plate stitch wide no more than 10mm.
(5) place vacuum heat-insulating plate after, the gap between thermal insulation board use polyurethane foam or heat preservation RPC materials fill with
It preventing from oozing under Reinforced Concrete Torsional, and built-in connection, anchorage length of the connector in unilateral wallboard is not preferably less than 20mm,
Anti-corrosion woodbox is fixed on door-window opening periphery and vacuum heat-insulating plate carries out bridge cut-off processing.
(6) cushion block is set, steel reinforcement cage, pre-buried hanging ring, built-in fitting, pipeline, electrical box, preformed hole etc. are lifted.
(7) haydite concrete structure sheaf is poured, thickness is not less than 160mm (according to JGJ3-2010《Skyscraper concrete
Structure technology regulation》, the section thickness of shear wall should meet the following requirements:I and II shear wall:Do not answer small in bottom reinforcement position
In 200mm, other positions are no less than 160mm;Linear type independence shear wall bottom reinforces position and is no less than 220mm, other
Position is no less than 180mm), it vibrates, catch up with light;The formula of haydite concrete used is:50 grams of cement, 10 grams of flyash, mine
10 grams of slag, 80 grams of slag, 50 grams of haydite, 0.15 gram of water-retaining agent, 0.1 gram of water-reducing agent, 25 grams of water;Cement is normal silicate water
Mud, strength grade are that 42.5 flyash grades are I grades;Slag grade is S95 grades;The fineness modulus of slag is 3.0~3.3, heap
Product density is 1020~1080kg/m3;Haydite is lytag, and the grain size of haydite is 5~15mm, bulk density is 840~
870kg/m3, cylindrical compress strength >=5.0MPa;Water-retaining agent is hydroxypropyl methyl cellulose, and water-reducing agent is naphthalene water reducer.
(8) natural curing or steam curing, polishing, smoothing, demoulding, lifting, stacking.
The structure for the wallboard that the embodiment makes is as shown in Figure 1, consistent with the above method, including being bonded successively first
Layer decoration protective layer 1 (being completed by second step), enhancement layer 2, second layer decoration protective layer 3 (walked and completed by third), vacuum insulation
Plate layer 4 and structure sheaf 7;Connector 6 is set in the joint filling 5 of vacuum heat-insulating plate layer.
Embodiment 2
From embodiment 1 difference lies in decoration protective layer used in RPC material prescriptions it is different, RPC materials used are matched
Fang Wei:
100 grams of dry powder, 8 grams of water and 2 grams of fibers;The formula of dry powder:60 grams of cement, 10 grams of silicon ash, 10 grams of slag, quartz sand
The length of 150 grams and 0.2 gram of water-reducing agent, fiber is 6~15mm, is basalt fibre;Cement is 52.5 strength grade Pu Guishui
Mud;Water-reducing agent is polycarboxylic acid series high efficiency water reducing agent, and quartz sand is 20~80 mesh.
Other steps and the structure of wallboard are the same as embodiment 1.
Embodiment 3
From embodiment 1 difference lies in the formula of haydite armored concrete used in structure sheaf is different, it is:
60 grams of cement, 3 grams of flyash, 20 grams of slag, slag 60,60 grams of haydite, 0.05 gram of water-retaining agent, 0.2 gram of water-reducing agent,
20 grams of water;Cement is Portland cement, strength grade 42.5R;Flyash grade is II grades;Slag grade is S105
Grade;The fineness modulus of slag is 3.0~3.3, and bulk density is 1020~1080kg/m3;Haydite is lytag, haydite
Grain size is 5~15mm, and bulk density is 840~870kg/m3, cylindrical compress strength >=5.0MPa;Water-retaining agent is hydroxypropyl methyl fiber
Element, water-reducing agent are melamine system water reducer.
Other steps and the structure of wallboard are the same as embodiment 1.
Embodiment 4
From embodiment 1 difference lies in the thickness of each layer is different, specially:
It is respectively 30mm, 30mm, vacuum heat-insulating plate layer that first layer, which decorates protective layer and the thickness of second layer decoration protective layer,
Thickness is 15mm, and the thickness of structure sheaf is 160mm.
Other steps and the structure of wallboard are the same as embodiment 1.
The indexs such as density, compression strength, thermal property of RPC materials used, knot in the present invention also testing example 1 and 2
Fruit is as shown in table 1.
The performance of 1 RPC materials of table
The density of haydite concrete (material i.e. used in structure sheaf) used, resistance to compression in the present invention also testing example 1 and 3
The indexs such as intensity, thermal property, the results are shown in Table 2.
The performance of 2 concrete of table
The present invention is also tested for the bearing and heat insulating ability of the wallboard of embodiment 1 and 4, and the results are shown in Table 3.
The performance of 3 wallboard of table
Embodiment 1 | Embodiment 4 | |
Heat transfer coefficient (W/ (m2·K) | 0.42 | 0.37 |
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of Reactive Powder Concrete, which is characterized in that be mainly made of following material:
By weight, 80~100 parts of dry powder, 8~12 parts of water and 1.2~2 parts of fibers;
The dry powder includes:By weight, 60~70 parts of cement, 5~10 parts of silicon ash, 10~20 parts of slag, quartz sand 120~
150 parts and 0.2~0.5 part of water-reducing agent.
2. Reactive Powder Concrete according to claim 1, which is characterized in that the length of the fiber is 6~15mm, is
Alkali-resistant glass fibre, steel fibre, polypropylene fibre and basalt fibre it is one or more;
Preferably, the cement is 52.5 strength grade ordinary portland cements;
Preferably, the water-reducing agent is one kind of polycarboxylate water-reducer, naphthalene water reducer and melamine system water reducer;
Preferably, the quartz sand is 20~80 mesh.
3. Reactive Powder Concrete according to claim 1, which is characterized in that by weight, 80~90 parts of dry powder, 10~
12 parts of water and 1.2~1.5 parts of fibers.
4. Reactive Powder Concrete according to claim 1, which is characterized in that the dry powder includes:By weight, cement
0.2~0.4 part of 60~65 parts, 8~10 parts of silicon ash, 10~15 parts of slag, 135~150 parts of quartz sand and water-reducing agent.
5. a kind of assembled combined wall board, which is characterized in that including by claim 1-4 any one of them reactive powder coagulations
Protective layer is decorated made of native.
6. assembled combined wall board according to claim 1, which is characterized in that the assembled combined wall board includes successively
First decoration protective layer, enhancement layer, the second decoration protective layer, vacuum heat-insulating plate layer and structure sheaf;
The first decoration protective layer and the second decoration protective layer are by claim 1-4 any one of them reactive powder coagulations
Soil is made;
Preferably, the enhancement layer is high strength fibre grid cloth or steel fabric sheet;
Preferably, the structure sheaf is reinforced concrete floor;
Preferably, the vacuum heat-insulating plate layer is spliced by multiple vacuum heat-insulating plate fissure of displacement;
Preferably, the fissure of displacement distance of the fissure of displacement splicing is in 150mm or more;
Preferably, the width in each gap is in 10mm or less during the fissure of displacement splices;
Preferably, connector, connector connection the first decoration protection are equipped in the vacuum heat-insulating plate layer in gap
Layer, the enhancement layer, the second decoration protective layer and the structure sheaf;
Preferably, the gap filling between the vacuum heat-insulating plate has polyester form or thermal insulation mortar.
7. assembled combined wall board according to claim 6, which is characterized in that the first decoration protective layer and the second dress
The thickness of decorations protective layer is respectively 25~40mm, 25~40mm, and the vacuum heat-insulating plate layer thickness is 10~20mm, the structure
The thickness of layer is 160mm;
Preferably, it is bonded by boundary mortar layer between the second decoration protective layer and the vacuum heat-insulating plate layer, it is described true
It is bonded by boundary mortar layer between empty heat-insulating shield layer and the structure sheaf.
8. the assembled combined wall board described according to claim 6 or 7, which is characterized in that the intensity of the reinforced concrete floor
For grade in C30 or more, density is preferably 1500~1700kg/m3;
Preferably, the reinforced concrete floor is mainly made of following material:By weight, 50~60 parts of cement, flyash 3~
10 parts, 10~20 parts of slag, slag 60~80,50~60 parts of haydite, 0.05~0.15 part of water-retaining agent, water-reducing agent 0.1~0.2
Part, 20~25 parts of water;
Preferably, the cement is Portland cement, and strength grade mixes for one or both of 42.5 or 42.5R;
Preferably, the flyash grade is one or both of I grades or II grades mixing;
Preferably, the slag grade is one or both of S95 grades or S105 grades mixing;
Preferably, the fineness modulus of the slag is 3.0~3.3, and bulk density is 1020~1080kg/m3;
Preferably, the haydite is lytag;
Preferably, the grain size of the haydite is 5~15mm, and bulk density is 840~870kg/m3, cylindrical compress strength >=5.0MPa;
Preferably, the water-reducing agent in the reinforced concrete floor is that polycarboxylate water-reducer, naphthalene water reducer and melamine series subtract
One kind of aqua;
Preferably, the water-retaining agent in the reinforced concrete floor is hydroxypropyl methyl cellulose.
9. the preparation method of claim 6-8 any one of them assembled combined wall boards, which is characterized in that including following step
Suddenly:
Step A:In spraying by the mold of releasing agent, pouring one layer of Reactive Powder Concrete, then enhance described in paving
Then layer sprays another layer of Reactive Powder Concrete in the top of enhancement layer, form the second decoration protective layer;
Step B:Before the Reactive Powder Concrete initial set of the second decoration protective layer, the fissure of displacement is laid with multiple vacuum above
Heat-insulating shield is paved, blind, forms insulating layer;
Step C:The pouring reinforcement concrete above the insulating layer forms structure sheaf.
10. preparation method according to claim 9, which is characterized in that generated in the multiple vacuum heat-insulating plates of the laying
Gap in be laid with connector;
Preferably, pre-buried hanging ring, built-in fitting, pipeline, electrical box, preformed hole between the insulating layer and the structure sheaf.
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CN111333390A (en) * | 2020-04-01 | 2020-06-26 | 三一筑工科技有限公司 | Concrete prefabricated hollow column and production method thereof |
CN111847998A (en) * | 2020-06-23 | 2020-10-30 | 中建西部建设建材科学研究院有限公司 | Core-drawing-free high-performance composite heat-insulation wallboard and preparation process thereof |
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CN111333390A (en) * | 2020-04-01 | 2020-06-26 | 三一筑工科技有限公司 | Concrete prefabricated hollow column and production method thereof |
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CN113461378A (en) * | 2021-03-31 | 2021-10-01 | 中国建筑第五工程局有限公司 | Tin wire self-repairing reactive powder concrete and preparation method thereof |
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CN114644491A (en) * | 2022-03-23 | 2022-06-21 | 福建众合开发建筑设计院有限公司 | High-strength concrete material for fabricated building and preparation method thereof |
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