CN106587834A - Grouting phase-change energy-storage concrete block and manufacturing method thereof - Google Patents
Grouting phase-change energy-storage concrete block and manufacturing method thereof Download PDFInfo
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- CN106587834A CN106587834A CN201611151449.3A CN201611151449A CN106587834A CN 106587834 A CN106587834 A CN 106587834A CN 201611151449 A CN201611151449 A CN 201611151449A CN 106587834 A CN106587834 A CN 106587834A
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
- C04B41/71—Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being an organic material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
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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
- C04B2201/30—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Architecture (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a grouting phase-change energy-storage concrete block, which comprises a concrete matrix, wherein two cavities are symmetrically formed in the concrete matrix; an emulsion layer and a heat-conductive coating sequentially cover the inner wall of each cavity; the cavities are filled with phase-change material layers; and two material inlets and a gas outlet are formed between the concrete matrix and each cavity. The grouting phase-change energy-storage concrete block provided by the invention is compact in structure, good in heat-conducting property, good in timeliness and high in energy-storage density. The phase-change material layers are 60-90% of the cavity bodies in volume, so that the block is controllable in energy-storage density, and in addition, concrete cracking, caused by volume change in a phase-change process, is prevented; therefore, the working performance of the block is significantly improved.
Description
Technical field
The present invention relates to technical field of buildings, and in particular to a kind of slip casting type phase-change accumulation energy concrete segment and its preparation side
Method.
Background technology
With the Large scale construction in cities and towns, building industry height consumption, high investment, the problem of low income become increasingly conspicuous, at present,
China has been construction material manufacturing country maximum in the world and country of consumption.Main building material product cement, plate glass, building are defended
Raw ceramics, stone material and materials for wall Isoquant are ranked first in the world for many years.The external wall outer insulation that is widely used at present and it is interior within the walls
Although low-energy consumption can drop in heat preservation technology, due to the thermal capacity of material itself it is limited, it is impossible to fully energy is entered
Row storage is utilized, thus limits the ability of building energy conservation.As phase change material is its thing phase change process (fusing solidifies)
In, amount of heat can be absorbed or is released from environment, while keeping temperature is constant, the advantages of can repeatedly using, by which
The insulating power that building energy saving field can not only improve body of wall is applied to, heating energy consumption is saved, and body of wall can be reduced certainly
Weight, makes body of wall thinning, increases effective usable floor area in house, thus has broad application prospects.
Phase-change accumulation energy concrete utilizes phase transition mechanism, intelligently absorbs heat according to temperature difference or releases heat, reaches
To energy storage and the purpose of release and regulation energy requirement and supply mismatch, realize scientific energy saving, reduce environmental pollution.But
It is to still suffer from problems with：(1) phase-change accumulation energy volume of concrete is big, easily ftractures because of the internal stress caused by temperature difference；
(2) phase-change material content is low, and concrete energy storage density is low；(3) concrete heat conductivility difference causes its work limitation poor；(4)
Under high temperature, phase-change material is easily revealed.
The content of the invention
The present invention is directed to the deficiencies in the prior art, there is provided the high note of a kind of good heat conductivity, ageing good, energy storage density
Paddle phase-change accumulation energy concrete segment.
Present invention also offers the preparation method of the slip casting type phase-change accumulation energy concrete segment.
The purpose of the present invention is achieved by the following technical solution
A kind of slip casting type phase-change accumulation energy concrete segment, including concrete substrate；The internal symmetry of the concrete substrate
Two cavitys are provided with, the cavity inner wall is coated with emulsion layer and heat conducting coating successively, and the inside of the cavity is filled with phase transformation
Material layer, is provided with two charging apertures and a gas outlet between the concrete substrate and cavity；
The thickness of the emulsion layer is 0.5-2mm；
The thickness of the heat conducting coating is 5-10mm；
60-90% of the volume of the phase-change material layers for cavity volume.
Described, concrete substrate is by obtained in the raw material of following weight portion：2.0-3.5 part cement, 5.0-9.0 part ferrum
Block, 4.0-9.0 part iron filings, 1.0-2.0 part steel fibres, 0.05-0.15 parts water reducer and 1 part of water；
Described, charging aperture and gas outlet are by obtained in the raw material of following weight portion：3.0-5.0 part cement, 3.0-5.0
Part iron filings, 0.4-1.2 part phenolic resin glues, 0.05-0.2 parts water reducer and 1 part of water.
Described, emulsion layer is that, by obtained in VAE emulsions, the solid content of the VAE emulsions is more than 54%, and viscosity is
2000-2500mPa·s。
Described, heat conducting coating is by obtained in the raw material of following weight portion：45-55 part graphite powders, 25-35 parts dextrin and
25-35 part Radix Acaciae senegalis.
Described, phase-change material layers are paraffin or sodium nitrate, and phase transition temperature is less than 400 DEG C.
Described, the particle diameter of iron block is more than 6mm, less than 40mm；The particle diameter of the iron filings is 1-5mm；The steel fibre
Length is 0.08-2mm；The water reducer is polycarboxylate water-reducer, and water-reducing rate is 30-40%.
Described, the specific surface area of graphite powder is 380-540m2；The specific surface area of dextrin is 240-300m2/kg；Ah
The specific surface area for drawing uncle's natural gum is 240-300m2/kg。
Described, the specific surface area of phenolic resin glue is 240-300m2/kg。
A kind of preparation method of slip casting type phase-change accumulation energy concrete segment, is prepared by following steps：
1) weigh by weight：2.0-3.5 part cement, 5.0-9.0 part iron blocks, 4.0-9.0 part iron filings, 1.0-2.0 part steel
Fiber, 0.05-0.15 parts water reducer and 1 part of water, mix homogeneously, Jing extrusion moldings, prepared internal symmetry are provided with two cavitys
Concrete substrate；
2) by VAE emulsions even application in the inwall of cavity, obtain emulsion layer；And will mix by weight in 5-30s
Even 45-55 part graphite powders, 25-35 parts dextrin and 25-35 part Radix Acaciae senegalis air blast are sprayed on the surface of emulsion layer, obtain heat conduction painting
Layer；
3) concrete substrate for completing to spray twice is warming up to into 200-400 DEG C, is incubated 10-60min, during this period, used
Inwall pressurization 2-10min of the high pressure air rifle of 4-8MPa to cavity；
4) paraffin or sodium nitrate are heated to melting completely, are imported by two charging apertures, to the 60-90% of cavity volume,
Obtain phase-change material layers；
5) weigh by weight：3.0-5.0 part cement, 3.0-5.0 part iron filings, 0.4-1.2 part phenolic resin glues, 0.05-
0.2 part of water reducer and 1 part of water, mix homogeneously, are filled in two charging apertures and gas outlet, dry 5-24h at 65-105 DEG C, must note
Paddle phase-change accumulation energy concrete segment.
Cement used by the present invention is portland cement, and specific surface area is between 280-340m2。
Beneficial effects of the present invention：
1. the slip casting type phase-change accumulation energy concrete segment compact structure of the present invention, good heat conductivity, ageing good, energy storage are close
Degree is high.60-90% of the volume of phase-change material layers for cavity volume, the storage density for not only realizing building block are controllable, can also prevent
Only concrete cracking caused by the change in volume in phase transition process, significantly improves block work performance.
2. the slip casting type phase-change accumulation energy concrete segment of the present invention passes through emulsion layer and heat conducting coating improves caking property, favorably
In phase-change material layers cavity inner wall attachment；The tack of emulsion layer and heat conducting coating can be reinforced by pressurization, significantly improved
The heat conductivility and consistency of building block；Charging aperture and gas outlet can effectively prevent phase-change material from revealing；Taken inside each material each other
Connect, composition metal matter network structure, improve the heat conductivility of concrete.
3. the preparation method of the present invention is simple, and raw material is cheap and easy to get, is adapted to large-scale promotion application.
Description of the drawings
Fig. 1 is the structural representation of the slip casting type phase-change accumulation energy concrete segment of the present invention.
In figure：1. concrete substrate, 2. cavity, 3. emulsion layer, 4. heat conducting coating, 5. phase-change material layers, 6. charging aperture, 7.
Gas outlet.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
A kind of slip casting type phase-change accumulation energy concrete segment, including concrete substrate 1；The inside pair of the concrete substrate 1
Title is provided with two cavitys 2, and 2 inwall of the cavity is coated with emulsion layer 3 and heat conducting coating 4, the inside filling of the cavity 2 successively
There are phase-change material layers 5, between the concrete substrate 1 and cavity 2, be provided with two charging apertures 6 and a gas outlet 7；
The thickness of the emulsion layer 3 is 2mm；
The thickness of the heat conducting coating 4 is 10mm；
The volume of the phase-change material layers 5 for 2 volume of cavity 60%.
Described, concrete substrate 1 is by obtained in the raw material of following weight portion：3.5 parts of cement, 5.0 parts of iron blocks, 9.0
Part iron filings, 1.0 parts of steel fibres, 0.15 part of water reducer and 1 part of water；
Described, charging aperture 6 and gas outlet 7 are by obtained in the raw material of following weight portion：3.0 parts of cement, 5.0 parts of ferrum
Bits, 0.4 part of phenolic resin glue, 0.2 part of water reducer and 1 part of water.
Described, emulsion layer 3 is that, by obtained in VAE emulsions, the solid content of the VAE emulsions is more than 54%, and viscosity is
2000-2500mPa·s。
Described, heat conducting coating 4 is by obtained in the raw material of following weight portion：45 parts of graphite powders, 35 parts of dextrin and 25 parts
Radix Acaciae senegalis.
Described, phase-change material layers 5 are paraffin, and phase transition temperature is less than 400 DEG C.
Described, the particle diameter of iron block is more than 6mm, less than 20mm；The particle diameter of the iron filings is 1-3mm；The steel fibre
Length is 0.08-1mm；The water reducer is polycarboxylate water-reducer, and water-reducing rate is 30-40%.
Described, the specific surface area of graphite powder is 380-540m2；The specific surface area of dextrin is 240-300m2/kg；Ah
The specific surface area for drawing uncle's natural gum is 240-300m2/kg。
Described, the specific surface area of phenolic resin glue is 240-300m2/kg。
A kind of preparation method of slip casting type phase-change accumulation energy concrete segment, is prepared by following steps：
1) weigh by weight：3.5 parts of cement, 5.0 parts of iron blocks, 9.0 parts of iron filings, 1.0 parts of steel fibres, 0.15 part of water reducer
With 1 part of water, mix homogeneously, Jing extrusion moldings, prepared internal symmetry are provided with the concrete substrate 1 of two cavitys 2；
2) by VAE emulsions even application in the inwall of cavity 2, obtain emulsion layer 3；And will mix by weight in 5-30s
Uniform 45 parts of graphite powders, 35 parts of dextrin and 25 parts of Radix Acaciae senegalis air blast are sprayed on the surface of emulsion layer 3, obtain heat conducting coating 4；
3) concrete substrate 1 for completing to spray twice is warming up to into 400 DEG C, is incubated 10min, during this period, with 4MPa's
Inwall pressurization 10min of the high pressure air rifle to cavity 2；
4) heating paraffin is imported by two charging apertures 6 to melting completely, to the 60% of 2 volume of cavity, obtains phase-change material
Layer 5；
5) weigh by weight：3.0 parts of cement, 5.0 parts of iron filings, 0.4 part of phenolic resin glue, 0.2 part of water reducer and 1 part
Water, mix homogeneously are filled at 7,65 DEG C of two charging apertures 6 and gas outlet and dry 24h, obtain slip casting type phase-change accumulation energy concrete block
Block.
According to GB/T50107-2010《Standard for inspection and assessment of strength of concrete》Surveying 28 days concrete crushing strengths will up to C30
Ask.In 50 intensity decreases 4.1% of 25-400 DEG C of thermal cycle, and have no that phase-change material is revealed.The heat conductivity of concrete segment
For 1.88W/mK.
Embodiment 2
A kind of slip casting type phase-change accumulation energy concrete segment, including concrete substrate 1；The inside pair of the concrete substrate 1
Title is provided with two cavitys 2, and 2 inwall of the cavity is coated with emulsion layer 3 and heat conducting coating 4, the inside filling of the cavity 2 successively
There are phase-change material layers 5, between the concrete substrate 1 and cavity 2, be provided with two charging apertures 6 and a gas outlet 7；
The thickness of the emulsion layer 3 is 1.5mm；
The thickness of the heat conducting coating 4 is 8mm；
The volume of the phase-change material layers 5 for 2 volume of cavity 75%.
Described, concrete substrate 1 is by obtained in the raw material of following weight portion：2.5 parts of cement, 7.0 parts of iron blocks, 6.0
Part iron filings, 1.5 parts of steel fibres, 0.1 part of water reducer and 1 part of water；
Described, charging aperture 6 and gas outlet 7 are by obtained in the raw material of following weight portion：4.0 parts of cement, 4.0 parts of ferrum
Bits, 0.8 part of phenolic resin glue, 0.1 part of water reducer and 1 part of water.
Described, heat conducting coating 4 is by obtained in the raw material of following weight portion：50 parts of graphite powders, 30 parts of dextrin and 30 parts
Radix Acaciae senegalis.
Described, phase-change material layers 5 are sodium nitrate, and phase transition temperature is less than 400 DEG C.
Described, the particle diameter of iron block is more than 15mm, less than 30mm；The particle diameter of the iron filings is 2-4mm；The steel fibre
Length is 0.5-1.5mm；The water reducer is polycarboxylate water-reducer, and water-reducing rate is 30-40%.
A kind of preparation method of slip casting type phase-change accumulation energy concrete segment, is prepared by following steps：
1) weigh by weight：2.5 parts of cement, 7.0 parts of iron blocks, 6.0 parts of iron filings, 1.5 parts of steel fibres, 0.1 part of water reducer
With 1 part of water, mix homogeneously, Jing extrusion moldings, prepared internal symmetry are provided with the concrete substrate 1 of two cavitys 2；
2) by VAE emulsions even application in the inwall of cavity 2, obtain emulsion layer 3；And will mix by weight in 5-30s
Uniform 50 parts of graphite powders, 30 parts of dextrin and 30 parts of Radix Acaciae senegalis air blast are sprayed on the surface of emulsion layer 3, obtain heat conducting coating 4；
3) concrete substrate 1 for completing to spray twice is warming up to into 300 DEG C, is incubated 30min, during this period, with 6MPa's
Inwall pressurization 6min of the high pressure air rifle to cavity 2；
4) sodium nitrate is heated to melting completely, is imported by two charging apertures 6, to the 75% of 2 volume of cavity, obtain phase transformation material
The bed of material 5；
5) weigh by weight：4.0 parts of cement, 4.0 parts of iron filings, 0.8 part of phenolic resin glue, 0.1 part of water reducer and 1 part
Water, mix homogeneously are filled at 7,85 DEG C of two charging apertures 6 and gas outlet and dry 15h, obtain slip casting type phase-change accumulation energy concrete block
Block.
Remaining is with embodiment 1.
According to GB/T50107-2010《Standard for inspection and assessment of strength of concrete》Surveying 28 days concrete crushing strengths will up to C30
Ask.In 50 intensity decreases 3.8% of 25-400 DEG C of thermal cycle, and have no that phase-change material is revealed.The heat conductivity of concrete segment
For 1.74W/mK.
Embodiment 3
A kind of slip casting type phase-change accumulation energy concrete segment, including concrete substrate 1；The inside pair of the concrete substrate 1
Title is provided with two cavitys 2, and 2 inwall of the cavity is coated with emulsion layer 3 and heat conducting coating 4, the inside filling of the cavity 2 successively
There are phase-change material layers 5, between the concrete substrate 1 and cavity 2, be provided with two charging apertures 6 and a gas outlet 7；
The thickness of the emulsion layer 3 is 0.5mm；
The thickness of the heat conducting coating 4 is 5mm；
The volume of the phase-change material layers 5 for 2 volume of cavity 90%.
Described, concrete substrate 1 is by obtained in the raw material of following weight portion：2.0 parts of cement, 9.0 parts of iron blocks, 4.0
Part iron filings, 2.0 parts of steel fibres, 0.05 part of water reducer and 1 part of water；
Described, charging aperture 6 and gas outlet 7 are by obtained in the raw material of following weight portion：5.0 parts of cement, 3.0 parts of ferrum
Bits, 1.2 parts of phenolic resin glues, 0.05 part of water reducer and 1 part of water.
Described, heat conducting coating 4 is by obtained in the raw material of following weight portion：55 parts of graphite powders, 25 parts of dextrin and 35 parts
Radix Acaciae senegalis.
Described, phase-change material layers 5 are sodium nitrate, and phase transition temperature is less than 400 DEG C.
Described, the particle diameter of iron block is more than 25mm, less than 40mm；The particle diameter of the iron filings is 3-5mm；The steel fibre
Length is 1-2mm；The water reducer is polycarboxylate water-reducer, and water-reducing rate is 30-40%.
A kind of preparation method of slip casting type phase-change accumulation energy concrete segment, is prepared by following steps：
1) weigh by weight：2.0 parts of cement, 9.0 parts of iron blocks, 4.0 parts of iron filings, 2.0 parts of steel fibres, 0.05 part of water reducer
With 1 part of water, mix homogeneously, Jing extrusion moldings, prepared internal symmetry are provided with the concrete substrate 1 of two cavitys 2；
2) by VAE emulsions even application in the inwall of cavity 2, obtain emulsion layer 3；And will mix by weight in 5-30s
Uniform 55 parts of graphite powders, 25 parts of dextrin and 35 parts of Radix Acaciae senegalis air blast are sprayed on the surface of emulsion layer 3, obtain heat conducting coating 4；
3) concrete substrate 1 for completing to spray twice is warming up to into 200 DEG C, is incubated 10min, during this period, with 8MPa's
Inwall pressurization 2min of the high pressure air rifle to cavity 2；
4) sodium nitrate is heated to melting completely, is imported by two charging apertures 6, to the 90% of 2 volume of cavity, obtain phase transformation material
The bed of material 5；
5) weigh by weight：5.0 parts of cement, 3.0 parts of iron filings, 1.2 parts of phenolic resin glues, 0.05 part of water reducer and 1 part
Water, mix homogeneously are filled at 7,105 DEG C of two charging apertures 6 and gas outlet and dry 5h, obtain slip casting type phase-change accumulation energy concrete block
Block.
Remaining is with embodiment 1.
According to GB/T50107-2010《Standard for inspection and assessment of strength of concrete》Surveying 28 days concrete crushing strengths will up to C30
Ask.In 50 intensity decreases 3.7% of 25-400 DEG C of thermal cycle, and have no that phase-change material is revealed.The heat conductivity of concrete segment
For 1.66W/mK.
Claims (9)
1. a kind of slip casting type phase-change accumulation energy concrete segment, it is characterised in that including concrete substrate (1)；The coagulation soil matrix
The internal symmetry of body (1) is provided with two cavitys (2), and cavity (2) inwall is coated with emulsion layer (3) and heat conducting coating successively
(4), the inside of the cavity (2) is filled with phase-change material layers (5), is provided with two between the concrete substrate (1) and cavity (2)
Individual charging aperture (6) and a gas outlet (7)；
The thickness of the emulsion layer (3) is 0.5-2mm；
The thickness of the heat conducting coating (4) is 5-10mm；
60-90% of the volume of the phase-change material layers (5) for cavity (2) volume.
2. slip casting type phase-change accumulation energy concrete segment according to claim 1, it is characterised in that the concrete substrate
(1) it is by obtained in the raw material of following weight portion：2.0-3.5 part cement, 5.0-9.0 part iron blocks, 4.0-9.0 part iron filings, 1.0-
2.0 parts of steel fibres, 0.05-0.15 parts water reducer and 1 part of water；
The charging aperture (6) and gas outlet (7) are by obtained in the raw material of following weight portion：3.0-5.0 part cement, 3.0-5.0
Part iron filings, 0.4-1.2 part phenolic resin glues, 0.05-0.2 parts water reducer and 1 part of water.
3. slip casting type phase-change accumulation energy concrete segment according to claim 1, it is characterised in that the emulsion layer (3) is
By obtained in VAE emulsions, the solid content of the VAE emulsions is more than 54%, and viscosity is 2000-2500mPas.
4. slip casting type phase-change accumulation energy concrete segment according to claim 1, it is characterised in that the heat conducting coating (4)
It is by obtained in the raw material of following weight portion：45-55 part graphite powders, 25-35 parts dextrin and 25-35 part Radix Acaciae senegalis.
5. slip casting type phase-change accumulation energy concrete segment according to claim 1, it is characterised in that the phase-change material layers
(5) it is paraffin or sodium nitrate, phase transition temperature is less than 400 DEG C.
6. slip casting type phase-change accumulation energy concrete segment according to claim 2, it is characterised in that the particle diameter of the iron block is big
In 6mm, less than 40mm；The particle diameter of the iron filings is 1-5mm；The length of the steel fibre is 0.08-2mm；The water reducer is
Polycarboxylate water-reducer, water-reducing rate are 30-40%.
7. slip casting type phase-change accumulation energy concrete segment according to claim 4, it is characterised in that the ratio table of the graphite powder
Area is 380-540m2；The specific surface area of dextrin is 240-300m2/kg；The specific surface area of the Radix Acaciae senegalis is 240-
300m2/kg。
8. slip casting type phase-change accumulation energy concrete segment according to claim 2, it is characterised in that the phenolic resin glue
Specific surface area is 240-300m2/kg。
9. the preparation method of the slip casting type phase-change accumulation energy concrete segment any one of a kind of claim 1-8, its feature
It is to be prepared by following steps：
1) weigh by weight：2.0-3.5 part cement, 5.0-9.0 part iron blocks, 4.0-9.0 part iron filings, 1.0-2.0 part steel fibres,
0.05-0.15 parts water reducer and 1 part of water, mix homogeneously, Jing extrusion moldings, prepared internal symmetry are provided with the mixed of two cavitys (2)
Solidifying soil matrix body (1)；
2) by VAE emulsions even application in the inwall of cavity (2), obtain emulsion layer (3)；And will mix by weight in 5-30s
Uniform 45-55 part graphite powders, 25-35 parts dextrin and 25-35 part Radix Acaciae senegalis air blast are sprayed on the surface of emulsion layer (3), obtain
Heat conducting coating (4)；
3) concrete substrate (1) for completing to spray twice is warming up to into 200-400 DEG C, is incubated 10-60min, during this period, uses 4-
Inwall pressurization 2-10min of the high pressure air rifle of 8MPa to cavity (2)；
4) paraffin or sodium nitrate are heated to melting completely, are imported by two charging apertures (6), to the 60- of cavity (2) volume
90%, obtain phase-change material layers (5)；
5) weigh by weight：3.0-5.0 part cement, 3.0-5.0 part iron filings, 0.4-1.2 part phenolic resin glues, 0.05-0.2 parts
Water reducer and 1 part of water, mix homogeneously, are filled in two charging apertures (6) and gas outlet (7), dry 5-24h, obtain at 65-105 DEG C
Slip casting type phase-change accumulation energy concrete segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107524066A (en) * | 2017-09-13 | 2017-12-29 | 济南大学 | A kind of anti-freeze asphalt concrete layer and its construction method |
| CN115110390A (en) * | 2022-07-13 | 2022-09-27 | 中铁第四勘察设计院集团有限公司 | Construction method suitable for rapid backfill of local excavation groove of municipal road |
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| CN101196067A (en) * | 2007-12-21 | 2008-06-11 | 西北农林科技大学 | Light phase-change heat-insulation wall building block |
| CN102503319A (en) * | 2011-10-24 | 2012-06-20 | 沈阳建筑大学 | Phase-change-energy-storage phase change concrete and preparation method |
| CN105110731A (en) * | 2015-08-06 | 2015-12-02 | 济南大学 | High-temperature phase change energy storage concrete and preparation method therefor |
| CN105254233A (en) * | 2015-11-06 | 2016-01-20 | 深圳大学 | Phase-change energy-storage concrete and manufacturing method thereof |
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| CN101196067A (en) * | 2007-12-21 | 2008-06-11 | 西北农林科技大学 | Light phase-change heat-insulation wall building block |
| CN102503319A (en) * | 2011-10-24 | 2012-06-20 | 沈阳建筑大学 | Phase-change-energy-storage phase change concrete and preparation method |
| CN105110731A (en) * | 2015-08-06 | 2015-12-02 | 济南大学 | High-temperature phase change energy storage concrete and preparation method therefor |
| CN105254233A (en) * | 2015-11-06 | 2016-01-20 | 深圳大学 | Phase-change energy-storage concrete and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107524066A (en) * | 2017-09-13 | 2017-12-29 | 济南大学 | A kind of anti-freeze asphalt concrete layer and its construction method |
| CN107524066B (en) * | 2017-09-13 | 2019-08-13 | 济南大学 | A kind of anti-freeze asphalt concrete layer and its construction method |
| CN115110390A (en) * | 2022-07-13 | 2022-09-27 | 中铁第四勘察设计院集团有限公司 | Construction method suitable for rapid backfill of local excavation groove of municipal road |
| CN115110390B (en) * | 2022-07-13 | 2023-08-29 | 中铁第四勘察设计院集团有限公司 | Construction method suitable for rapid backfilling of partially excavated groove of municipal road |
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| CN106587834B (en) | 2018-11-09 |
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