Concrete with Phase Change Material

A phase change material-based concrete material for integrating heat and cold storage in power plants. The material comprises a phase change material matrix, nano-silicon, and a controlled phase change energy storage microcapsule matrix. The phase change material matrix contains phase change materials, nano-silicon, and a controlled phase change energy storage microcapsule matrix. This matrix system enables both thermal energy storage and phase change energy storage, allowing for optimized peak load regulation by effectively utilizing seasonal energy variations.

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Building with enhanced thermal performance through phase change materials (PCMs) integrated into concrete masonry units (CMUs). The CMUs incorporate PCMs that absorb and release thermal energy through phase transitions, achieving both thermal insulation and temperature regulation. This innovative approach enables buildings to maintain optimal indoor conditions while reducing energy consumption through controlled temperature fluctuations.

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Phase change concrete material and its preparation method and application technical field, comprising cement, composite ash, crushed stone, sand, water reducing agent, and composite short fiber. The material comprises cement, composite ash, crushed stone, sand, water reducing agent, and composite short fiber, with the cement selected from silicate cement, preferably with a strength grade of PO 52.5 or higher, and the composite ash including fly ash and steel slag ash with a mass ratio of 1:1-3:2. The composite fiber is obtained by mixing phase change material and resin.

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High thermal conductivity and low temperature rise mass concrete with enhanced thermal energy storage properties. The concrete composition comprises cement, rice husk ash, high thermal conductivity phase change aggregate, fine aggregate, water reducer, steel fibers, and water. The phase change aggregate is specifically designed to absorb and release thermal energy, significantly reducing temperature rise in concrete structures. The composition balances thermal conductivity and thermal mass to achieve optimal performance in building construction applications.

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Composite phase change aggregate for concrete, comprising dodecane, tridecane, and tetradecane phase change aggregates, and a cementitious matrix. The aggregates are prepared by mixing dodecane, tridecane, and tetradecane phase change materials with shale ceramsite, epoxy resin, and cement. The resulting aggregate has enhanced thermal properties, particularly in low-temperature environments, through the controlled release of phase change energy.

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Phase change energy storage cement mortar with improved thermal performance and durability. The mortar incorporates phase change microcapsules within a sulfoaluminate cement matrix, which provides enhanced heat storage capacity and thermal management capabilities. The phase change material is specifically designed to maintain its thermal properties across a range of temperatures, while the cement matrix ensures consistent performance. This innovative combination enables the mortar to effectively regulate both indoor and outdoor temperatures, while minimizing energy consumption and environmental impact.

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Conductive phase change heat storage concrete with enhanced thermal performance through the integration of conductive fillers and phase change materials. The concrete combines cement, fine aggregate, coarse aggregate, water, and a phase change material with conductive fillers like nano carbon black and steel slag. The phase change material is encapsulated in microcapsules, replacing conventional aggregate, while the conductive fillers replace cement. This innovative combination enables real-time heating and delayed temperature control through the phase change material's latent heat release.

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Phase-change energy storage mortar for building construction that combines lightweight aggregate, fine aggregate, cementitious material, and phase-change energy storage material in a controlled ratio. The mixture is prepared with functional admixtures that enhance its performance, including water retention agents, water-reducing agents, thixotropic lubricants, and defoamers. The phase-change energy storage material enables phase transitions between solid and liquid states, while the functional admixtures ensure consistent performance.

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Thermal energy storage concrete incorporating phase change material (PCM) with enhanced thermal conductivity. The storage medium comprises a copper-encapsulated PCM matrix made by combining paraffin with magnetite, achieving a 50:50 mass ratio. The PCM is produced through a controlled mixing process involving ultrasonic homogenization and precise temperature control. The resulting concrete matrix is fabricated through conventional cement-based construction methods, with strategically placed copper tubes serving as the PCM storage medium. This innovative combination enables efficient thermal energy storage while maintaining structural integrity.

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Phase change concrete with enhanced thermal conductivity through a novel composite material approach. The concrete combines cement, phase change material (PCM) particles, aggregate, and water, with a specially prepared metal core that incorporates graphene-based thermal bridges. The metal core, comprising zinc, indium, bismuth, or tin, is selectively incorporated into the PCM matrix through controlled addition of haloalkane and graphene. This metal-organic hybrid structure enables improved thermal conductivity between graphene layers while maintaining phase change properties. The resulting composite material exhibits enhanced thermal performance, including improved strength, stiffness, and crack resistance, while maintaining phase change characteristics.

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Phase change concrete with improved performance through the use of a phase change material (PCM) encapsulated within a porous matrix. The PCM encapsulates the phase change material, preventing leakage and migration during application. The encapsulated PCM is coated with a hydrogel that forms a silica-rich network upon dehydration, creating a durable and stable interface with the concrete. This encapsulation enables controlled release of the phase change material, maintaining its thermal energy storage capacity and fire resistance.

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A cement-based temperature control material for concrete that reduces internal temperature peaks by more than 25% during mass concrete pouring. The material comprises a phase-change material, thermally conductive filler, and admixture that work together to regulate concrete temperature. The phase-change material absorbs and stores heat generated by cement hydration, while the thermally conductive filler enhances heat transfer. The material is specifically designed to prevent temperature-related cracking in large-volume concrete structures, ensuring structural integrity and safety during construction.

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Phase-change concrete with controlled temperature peak and thermal stability. The invention integrates phase-change materials with different melting points into a bulk concrete matrix, where the phase-change materials are applied in a specific order to the concrete. The phase-change materials absorb and release heat as they melt, controlling the concrete's temperature peak and thermal gradient. This controlled thermal response enables precise temperature management during construction, while maintaining structural integrity and durability.

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A composite concrete material that enhances thermal energy storage through a phase change material (PCM) embedded in aggregate. The material combines conventional lightweight aggregate with a PCM, such as wax, to create a concrete that can absorb and release thermal energy. The PCM is incorporated into the concrete mixture at a predetermined ratio, allowing it to be distributed throughout the aggregate. The concrete structure can then be cured, and the PCM can be released over time to provide continuous thermal energy storage.

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Phase change mass concrete that eliminates the need for cooling water pipes while preventing temperature-related cracking. The phase change material (PCM) is incorporated into the concrete mix to absorb and release heat during the hydration process, mitigating the thermal stresses that cause cracking. This approach enables the production of high-strength concrete without the conventional cooling water pipes and control measures, while maintaining superior mechanical properties and durability compared to conventional methods.

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A heat storage module for concrete aggregate that enables controlled temperature regulation through the incorporation of phase change material (PCM) during concrete production. The module integrates PCM, typically composed of organic compounds like tridecane, into the concrete aggregate during the mixing process, allowing it to absorb and release heat as needed. This integrated approach enables the concrete to maintain optimal temperature during construction while storing thermal energy, thereby reducing the need for external phase change materials. The PCM is incorporated into the aggregate during the concrete production process, ensuring consistent thermal energy storage throughout the concrete's lifecycle.

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A phase change material for building envelopes that addresses the issues of leakage and thermal performance typically associated with phase change materials. The material comprises a structured phase change material with nanoparticles of Al2O3, achieving high thermal conductivity and phase change properties. The material's optimized processing sequence includes ultrasonic treatment to enhance thermal conductivity, followed by controlled drying to improve thermal stability. This material is particularly suitable for building envelopes where energy efficiency is critical, as it maintains optimal phase change properties while minimizing leakage and thermal conductivity degradation.

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Phase change concrete aggregate that combines a thermally conductive bridge with a phase-change core and encapsulation layer. The bridge is a radial structure extending from the aggregate center to its periphery, with a phase-change core filled between the bridges. The encapsulation layer wraps around the core and bridge, with the bridge extending to the aggregate surface. This unique design enables efficient phase change energy storage while maintaining structural integrity through the encapsulation layer.

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Concrete material with phase change heat storage capability through controlled incorporation of a phase change material (PCM) into the concrete matrix. The material comprises a concrete matrix comprising Portland cement, silica fume, fly ash, slag powder, quartz sand, and stones, mixed with a phase change material solution containing polyvinyl alcohol fiber and graphene oxide, and then reinforced with fibers. The phase change material solution is prepared by dissolving ferric nitrate in water and then mixing it with the concrete components. The resulting concrete has enhanced thermal stability and reduced thermal expansion compared to conventional concrete.

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Phase change energy storage polymer concrete that combines the benefits of cementitious materials with phase change materials (PCMs) to create a sustainable building material. The concrete matrix is made from a geopolymer matrix with enhanced thermal insulation properties, while the PCMs are integrated as surface layers. The combination of these components enables the concrete to maintain its structural integrity at elevated temperatures without compromising its thermal performance. The PCMs are specifically designed to prevent material separation and degradation during phase change, while the geopolymer matrix ensures stable thermal conductivity. This innovative material offers improved thermal performance, reduced material waste, and enhanced environmental sustainability compared to conventional phase change cement concrete.

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C55 phase-change energy storage concrete using high-titanium slag as a phase-change carrier and preparation method thereof. The concrete combines high-titanium slag as a phase-change material carrier with cement, fly ash, and aggregate. The high-titanium slag particles absorb phase-change energy through vacuum adsorption, and the resulting encapsulated phase-change material is then incorporated into the concrete matrix. This approach enables the use of waste materials like high-titanium slag as a phase-change carrier, reducing traditional expansion materials and enhancing resource utilization.

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Building material with enhanced thermal energy storage using a phase-change material (PCM) that can be integrated into concrete. The PCM, comprising a fatty acid-based phase-change material stabilized through a phase-stabilization process, is mixed with cement to form a composite material. The stabilized PCM impregnates exfoliated graphite nanoplate (xGnP) into the cement matrix, creating a phase-stabilized phase-change material-applied concrete with improved thermal energy storage performance compared to conventional phase-change materials.

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A phase-stable phase-change material-applied concrete with enhanced thermal energy storage performance. The material combines a phase-change material with improved latent heat storage properties, specifically developed from fatty acid-based phase-change materials, with a conventional cement-based concrete. The phase-change material is stabilized through a proprietary process that prevents phase transition during application, ensuring consistent thermal energy storage performance. The resulting concrete exhibits superior thermal energy storage capacity compared to conventional phase-change materials alone, making it suitable for building applications requiring high thermal energy storage.

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A method for preparing phase change energy storage ceramsite through a novel approach that simplifies the traditional production process. The ceramsite is produced by selectively adsorbing phase change paraffin within the pores of a ceramsite matrix, followed by a controlled curing process that converts the paraffin into a stable phase change material. This approach eliminates the need for complex phase change material distribution and encapsulation, while maintaining the desired phase change properties. The resulting ceramsite can be incorporated into fiber reinforced concrete to enhance thermal insulation.

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Paraffin/ceramsite phase change concrete for energy storage that effectively regulates indoor temperature fluctuations. The concrete combines cementitious components with paraffin and ceramsite phase change materials, a fly ash source, and a packaging material. The paraffin/ceramsite phase change material absorbs and releases heat, while the fly ash provides thermal mass. The epoxy resin and triethylenetetramine binder system enhances the phase change material's performance. The concrete can be used in building construction to improve thermal comfort and reduce energy consumption.

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A phase change energy storage composite concrete block that combines phase change materials with conventional cement to achieve improved thermal performance. The block comprises a phase change material matrix containing a combination of phenolic resin and water-reducing agent, encapsulated within a specially formulated cement binder. This matrix enables controlled phase transition between solid and liquid states, while the cement binder provides structural integrity and thermal stability. The resulting composite block offers enhanced thermal energy storage capabilities through phase change, while maintaining conventional building material properties.

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High-temperature phase change energy storage concrete with enhanced thermal performance, improved compatibility, and enhanced working efficiency. The invention comprises a phase change material encapsulated within a refractory cement-based matrix, with the encapsulated phase change material encapsulated within a cement-based matrix. The phase change material encapsulation ensures compatibility between the phase change material and the concrete matrix, while the refractory cement matrix provides high-temperature resistance and improved thermal conductivity. The encapsulated phase change material also includes copper slag as an admixture to prevent high-temperature cracking and improve working efficiency.

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A phase change energy storage composite foam concrete block that combines the benefits of foam concrete with phase change materials. The block comprises a foam concrete core with a cementitious phase change material (PCM) poured on the inner wall surface. The PCM is a mixture of cement, fly ash, latex, cellulose ether, and fibers, with specific energy storage properties and controlled water content. The PCM is applied to the foam core wall surface, where it is encapsulated by the foam structure, creating a composite material with superior thermal performance characteristics. The foam core maintains its structural integrity while the PCM provides long-term energy storage.

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Concrete with enhanced thermal insulation properties achieved through the incorporation of phase change materials (PCMs) into cement-based mortars. The method involves blending cement, water, aggregate, and PCM in a specific ratio, with the PCM content optimized to achieve maximum thermal performance. The resulting concrete exhibits superior thermal resistance compared to conventional materials, particularly in applications requiring high thermal insulation.

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Concrete material with enhanced thermal conductivity and heat storage properties, achieved through the incorporation of phase change microcapsules in a polymer matrix. The microcapsules, encapsulating phase change materials, are dispersed throughout the concrete matrix and provide both thermal conductivity and heat storage functions. The microcapsules are stabilized by a polymer wall, which prevents phase separation and maintains the phase change material's performance. The resulting material exhibits improved thermal performance, particularly in high-temperature applications.

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Cement-based composite material for phase change energy storage that enhances thermal insulation performance. The composite comprises expanded graphite, phase change material, and cement. The phase change material is incorporated in a controlled ratio with the expanded graphite, allowing the material to maintain its structural integrity even when heated to high temperatures. The phase change material's expansion during phase change causes voids in the expanded graphite that are filled by the phase change material, preventing leakage and ensuring stable volume during phase change.

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Phase change thermal storage concrete comprising encapsulated asphalt and encapsulated rubber. The encapsulated asphalt and encapsulated rubber are combined in a matrix to form a composite material. The composite material is then encapsulated in a phase change material (PCM) matrix. The encapsulated asphalt and encapsulated rubber are encapsulated in a butyl rubber matrix.

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Method for optimizing concrete mix design to achieve enhanced thermal performance while maintaining structural integrity. The method involves determining the optimal phase change material (PCM) mixing ratio based on a target thermal conductivity reduction target, and then incorporating the PCM into the concrete formulation at that optimized ratio. The method further incorporates the PCM under controlled temperature conditions to enhance its latent heat storage capabilities. The optimized mixing ratio is determined using a specific equation that balances thermal conductivity reduction with concrete strength preservation.

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Thermal damage mitigation in cementitious systems through controlled phase change materials (PCMs) in concrete. The composition comprises concrete and PCMs for preventing or reducing thermal damage in cementitious systems, particularly in restrained concrete elements. The PCMs are incorporated into porous aggregate reservoirs, where they absorb and release heat as the concrete hydrates. This controlled thermal management prevents early-age thermal cracking, long-term fatigue damage, and freeze-thaw damage, while also enabling the development of a stable thermal gradient. The composition enables the controlled release of heat during the cooling process, thereby limiting thermal deformations and reducing the risk of thermal damage.

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