DE10341299A1 - Light concrete used in building and road construction contains polymer particles, cement and expanded graphite - Google Patents
Light concrete used in building and road construction contains polymer particles, cement and expanded graphite Download PDFInfo
- Publication number
- DE10341299A1 DE10341299A1 DE2003141299 DE10341299A DE10341299A1 DE 10341299 A1 DE10341299 A1 DE 10341299A1 DE 2003141299 DE2003141299 DE 2003141299 DE 10341299 A DE10341299 A DE 10341299A DE 10341299 A1 DE10341299 A1 DE 10341299A1
- Authority
- DE
- Germany
- Prior art keywords
- lightweight concrete
- polymer particles
- cement
- particles
- flame retardant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
- C04B14/024—Graphite
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/08—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/022—Agglomerated materials, e.g. artificial aggregates agglomerated by an organic binder
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
Die Erfindung betrifft einen flammhemmend ausgerüsteten Leichtbeton bestehend aus Polymerpartikeln, Blähgraphit und Zement, wobei die Polymerpartikel und/oder der Zement und/oder die Mischung aus Polymerpartikel und Zement mit Blähgraphit als flammhemmendes Mittel ausgestattet ist. Die Polymerpartikel weisen des weiteren eine Oberfläche mit haftvermittelten Eigenschaften gegenüber dem Zement und Blähgraphit auf um eine Entmischung der Komponenten zu vermeiden.The The invention relates to a flame-retardant lightweight concrete from polymer particles, expandable graphite and cement, wherein the polymer particles and / or the cement and / or the mixture of polymer particles and cement with expanded graphite is equipped as a flame retardant. The polymer particles furthermore have a surface with adhesion-mediated properties to the cement and expanded graphite to avoid segregation of the components.
Leichtbeton findet vielseitige Anwendungsmöglichkeiten im Bereich nichttragender Elemente im Bau- und Straßenwesen. Neben einer erhöhten Wärmeisolation ist vor allem die niedrige Dichte des Leichtbetons von Vorteil, da damit die Traglasten für Unterkonstruktionen reduziert werden können.lightweight concrete finds versatile applications in the field of non-structural elements in construction and road. In addition to increased heat insulation Above all, the low density of the lightweight concrete is advantageous because so are the payloads for substructures can be reduced.
Es ist weiterhin bekannt, das Leichtbeton in Verbindung mit geschäumten, thermoplastischen Kunststoffen und hierbei vor allem Polystyrolschaumpartikel hergestellt wird. Die Komponenten sind als Trockenmischung in Silos oder als Sackware verfügbar und werden auf der Baustelle mit Wasser und ggf. Sand und weiteren Hilfsstoffen zu Leichtbeton und Produkten daraus verarbeitet.It is still known, the lightweight concrete in conjunction with foamed, thermoplastic materials and here especially polystyrene foam particles is produced. The components are available as dry mix in silos or bagged available and be on site with water and possibly sand and more Excipients for lightweight concrete and processed products.
Ein ungelöstes Problem beim Einsatz von polymerbasierenden Zuschlagstoffen in Leichtbeton ist die Brandgefahr. Vor allem bei Leichtbeton sehr niedriger Dichte können u.U. Brandschutznormen nicht eingehalten werden. Beim Einsatz in Gebäuden besteht vor allem bei Leichtbeton niedriger Dichte mit Polystyrol-Schaumstoffpartikel als Zuschlagsstoff die erhöhte Gefahr der Flammausweitung durch die Wände hindurch und damit die Ausweitung des Brandes über mehrere Räume hinweg. Ein weiteres wesentliches Problem ist die Entmischung der Komponenten der Trockenmischung und die unzureichende Benetzbarkeit der Kunststoffpartikel bei der Verarbeitung.One unsolved Problem with the use of polymer-based aggregates in lightweight concrete is the fire hazard. Especially for lightweight concrete of very low density can u.U. Fire safety standards are not met. When used in Buildings exists especially with lightweight concrete low density with polystyrene foam particles as an additive the increased Danger of flame expansion through the walls and thus the Extending the fire over several rooms time. Another major problem is the segregation of the Components of the dry mix and the insufficient wettability the plastic particles during processing.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Leichtbeton bereitzustellen, dessen Endprodukt flammhemmende Eigenschaften aufweist und Brandschutznormen im Haus- und Straßenbau erfüllt. Weiterhin ist es Aufgabe innerhalb der gesamten Prozesskette vom Vorprodukt in Form einer Trockenmischung über Lagerung, Transport und Verarbeitung bis hin zum Endprodukt eine Entmischung von Schaumpartikeln, Additiven und Zement zu verhindern.Of the The invention is therefore based on the object to provide a lightweight concrete, whose end product has flame retardant properties and fire safety standards in house and road construction Fulfills. Furthermore, it is a task within the entire process chain of the precursor in the form of a dry blend Storage, transport and processing right through to the final product To prevent segregation of foam particles, additives and cement.
Dies wird erfindungsgemäß dadurch gelöst, dass eine Trockenmischung aus Polymerpartikeln, Blähgraphit und Zement bereitgestellt wird und diese anschließend zu Leichtbeton und Produkten weiterverarbeitet wird.This is characterized according to the invention solved that provided a dry blend of polymer particles, expandable graphite and cement and then this is processed to lightweight concrete and products.
Eine besonders bevorzugte Variante ist der Einsatz von thermoplastischen Polymer-Schaumpartikeln, insbesondere EPS, als Füllmaterial. Sowohl die ungeschäumten als auch die geschäumten Polymerpartikel können dabei in Form von Recyclingmaterial Anwendung finden.A particularly preferred variant is the use of thermoplastic Polymeric foam particles, especially EPS, as filling material. Both the unfoamed as well as the foamed ones Polymer particles can in the form of recycled material.
Für die Herstellung der Trockenmischung werden entweder Polystyrol-Schaumstoffpartikel direkt mit Blähgraphit als flammhemmendes Mittel ausgestattet oder die Zement-Schaumpartikelmischung mit Blähgraphit ausgerüstet. Ersteres geschieht über die Einarbeitung des Blähgraphits im Extrusionsprozess in das Polymer und die anschließende Weiterverarbeitung zu Granulat und Polystyrol-Schaumstoffpartikel. Über diese Einarbeitung des Blähgraphits in die Polymermatrix wird eine homogene Verteilung des Blähgraphits innerhalb des brennbaren Materialanteiles gewährleistet.For the production The dry mix will be either polystyrene foam particles directly with expanded graphite equipped as flame retardant or the cement foam particle mixture with expandable graphite equipped. The former happens over the Incorporation of expandable graphite in the extrusion process into the polymer and the subsequent further processing to granules and polystyrene foam particles. About this training of the expandable graphite In the polymer matrix is a homogeneous distribution of expandable graphite guaranteed within the combustible material content.
Eine weitere Variante bei der Herstellung der Schaumstoffpartikel ist die Ausstattung der Oberfläche der Schaumstoffpartikel mit einer Beschichtung die eine haftvermittelnde Wirkung gegenüber Zement und/oder Blähgraphit aufweist um eine Benetzung der Schaumstoffpartikel bei der Mischung mit den weiteren Komponenten zu gewährleisten, sowie nach der Herstellung der Trockenmischung eine Entmischung der Komponenten zu vermeiden.Another variant in the production of the foam particles is the equipment of the surface of the foam particles with a coating which has an adhesion-promoting effect against cement and / or expandable graphite to ensure wetting of the foam particles in the mixture with the other components, and to avoid segregation of the components after the preparation of the dry mix.
Zur anschließenden Herstellung der Trocken-Mischung werden die mit Blähgraphit ausgestatteten Polystyrol-Schaumstoffpartikel mit Zement gemischt.to subsequent Production of the dry mixture are made with expandable graphite equipped polystyrene foam particles mixed with cement.
Eine weitere Variante ist auch das direkte Einmischen des Blähgraphits in den Zement der anschließend mit Polystyrol-Schaumstoffpartikel gemischt wird, wobei die Polymermatrix der Polystyrol-Schaumstoffpartikel ebenfalls bereits Blähgraphit enthalten sowie eine haftvermittelnde Oberfläche aufweisen kann. Eine weitere Variante ist auch die Herstellung einer Mischung aus Polystyrol-Schaumstoffpartikel mit Zement und die anschließende Zugabe von Blähgraphit zu dieser Mischung, wobei die Polymermatrix der Polystyrol-Schaumstoffpartikel ebenfalls bereits Blähgraphit enthalten sowie eine haftvermittelnde Oberfläche aufweisen kann.A another variant is also the direct mixing of expandable graphite in the cement then is mixed with polystyrene foam particles, wherein the polymer matrix the polystyrene foam particles also already contain expandable graphite and may have an adhesion-promoting surface. Another Variant is also the production of a mixture of polystyrene foam particles with cement and the subsequent Addition of expanded graphite to this mixture, wherein the polymer matrix of the polystyrene foam particles also already expanded graphite contain and can have an adhesion-promoting surface.
Der verwendete Blähgraphit dient als Flammschutzmittel bzw. zur Flammhemmung. Blähgraphit, auch als expandierbarer Graphit bekannt besteht aus hexagonalen Schichten mit bei Erwärmung leicht in gasförmigen Zustand übergehenden Interkalationsverbindungen. Werden diese Verbindungen erwärmt, dehnen sich die in gasförmigen Zustand übergehende Verbindungen auf ein 1000faches aus, was zu einem Aufblähen der Graphitkristalle auf ein etwa 100faches bewirkt und damit flammhemmend wirkt und eine Flammausweitung durch den Beton verhindert.Of the used expanded graphite serves as a flame retardant or flame retardant. expandable graphite, Also known as expandable graphite consists of hexagonal Layers with when heated slightly in gaseous form Condition transient Intercalation. When these compounds are heated, stretch the ones in gaseous Condition transient Compounds to a 1000-fold, resulting in a puffing of Graphite crystals on an approximately 100 times causes and thus acts flame retardant and prevents flame expansion through the concrete.
Die Herstellung von Leichtbeton erfolgt über die Zugabe von Wasser und ggf. weiterer Zuschlagsstoffe. Die anschließende Herstellung von Produkten aus Leichtbeton erfolgt über herkömmliche Verfahren der Betonverarbeitung. Erfindungsgemäß können einzelne Bestandteile der Mischung auch erst nach Zugabe von Wasser in die Mischung eingegeben werden.The Production of lightweight concrete takes place via the addition of water and if necessary further additives. The subsequent production of products Lightweight concrete takes over conventional Process of concrete processing. According to the invention, individual constituents The mixture can also be entered into the mixture only after adding water.
Wesentlicher Vorteil ist die Bereitstellung von Leichtbeton der flammhemmende Eigenschaften aufweist. Des Weiteren zeichnet sich der hergestellte Leichtbeton durch eine niedrige Dichte und gute Festigkeitseigenschaften aus. Weiterer Vorteil ist eine homogene Mischung der Komponenten im Vorprodukt in Form der Trockenmischung, die zum einen eine problemlose Verarbeitung ohne Entmischung der Komponenten und des weiteren eine gleichmäßige Verteilung der Schaumstoffpartikel im Beton gewährleistet.essential Advantage is the provision of lightweight concrete of flame retardant Features. Furthermore, the lightweight concrete produced stands out due to a low density and good strength properties. Another advantage is a homogeneous mixture of the components in the precursor in the form of dry mix, which on the one hand, a problem-free processing without segregation of the components and further a uniform distribution ensures the foam particles in the concrete.
Anwendungsbeispiel:Example of use:
In eine Polymermatrix zur Herstellung von Polystyrol-Schaumstoffpartikel werden in einem Extrusionsprozess 5% Blähgraphit eingearbeitet und anschließend Polystyrol-Schaumstoffpartikel daraus hergestellt. Die so hergestellten Polystyrol-Schaumstoffpartikel werden mit Zement und ggf. weiterem Blähgraphit gemischt. Diese Trockenmischung wird unter Zugabe von Wasser zu Leichtbeton und Produkten daraus weiterverarbeitet.In a polymer matrix for the production of polystyrene foam particles 5% expandable graphite are incorporated in an extrusion process and then polystyrene foam particles made from it. The polystyrene foam particles thus produced are mixed with cement and possibly further expandable graphite. This dry mix with the addition of water becomes lightweight concrete and products thereof further processed.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE2003141299 DE10341299A1 (en) | 2003-09-04 | 2003-09-04 | Light concrete used in building and road construction contains polymer particles, cement and expanded graphite |
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DE2003141299 DE10341299A1 (en) | 2003-09-04 | 2003-09-04 | Light concrete used in building and road construction contains polymer particles, cement and expanded graphite |
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DE10341299A1 true DE10341299A1 (en) | 2005-03-31 |
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DE2003141299 Withdrawn DE10341299A1 (en) | 2003-09-04 | 2003-09-04 | Light concrete used in building and road construction contains polymer particles, cement and expanded graphite |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1978207A2 (en) | 2007-04-02 | 2008-10-08 | Skumtech AS | Fire protection for structures |
FR2974080A1 (en) * | 2011-04-18 | 2012-10-19 | Colas Sa | Bituminous asphalt composition, useful for realizing road bases of antinoise roadways, comprises a granular mixture and bitumen binder |
WO2014198742A1 (en) * | 2013-06-12 | 2014-12-18 | La Chape Liquide | Thermally conductive screed |
NO338352B1 (en) * | 2014-03-31 | 2016-08-08 | Selvaag Gruppen As | Polystyrene concrete pipe element which can be stacked to form a pipe stick, as well as a pipe stick comprising at least one such pipe element. |
US11428476B2 (en) * | 2020-09-04 | 2022-08-30 | Photon Vault, Llc | Thermal energy storage and retrieval system |
CN115073208A (en) * | 2022-07-04 | 2022-09-20 | 广东中地新材料科技有限公司 | Heat storage type ground heating backfill cushion layer and preparation method and application thereof |
US11519655B2 (en) | 2020-07-31 | 2022-12-06 | Photon Vault, Llc | Thermal energy storage and retrieval systems and methods |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4011697A1 (en) * | 1990-04-11 | 1991-10-17 | Bayer Ag | LIGHTWEIGHT BODIES CONTAINING BLAEH GRAPHITE, THEIR PRODUCTION AND THEIR USE |
DE19802232A1 (en) * | 1997-02-18 | 1998-08-20 | Basf Ag | Aqueous copolymer dispersion, used as self-adhesive coating on paper avoiding stickies in recycling |
DE19750537A1 (en) * | 1997-11-14 | 1999-05-20 | Peter Engmann | Fireproof building element consists of concrete or cement-bonded material containing expanded polystyrene aggregate |
WO2001066485A2 (en) * | 2000-03-08 | 2001-09-13 | Rene Francois Buysse | Lightweight cementitious building material |
-
2003
- 2003-09-04 DE DE2003141299 patent/DE10341299A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4011697A1 (en) * | 1990-04-11 | 1991-10-17 | Bayer Ag | LIGHTWEIGHT BODIES CONTAINING BLAEH GRAPHITE, THEIR PRODUCTION AND THEIR USE |
DE19802232A1 (en) * | 1997-02-18 | 1998-08-20 | Basf Ag | Aqueous copolymer dispersion, used as self-adhesive coating on paper avoiding stickies in recycling |
DE19750537A1 (en) * | 1997-11-14 | 1999-05-20 | Peter Engmann | Fireproof building element consists of concrete or cement-bonded material containing expanded polystyrene aggregate |
WO2001066485A2 (en) * | 2000-03-08 | 2001-09-13 | Rene Francois Buysse | Lightweight cementitious building material |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1978207A2 (en) | 2007-04-02 | 2008-10-08 | Skumtech AS | Fire protection for structures |
DE102008012084A1 (en) | 2007-04-02 | 2008-10-09 | Skumtech As | Fire protection for buildings, particularly for underground areas such as tunnels and lugs in fixed rock mass, has sealing against water, particularly in form of foil, and has anchors |
FR2974080A1 (en) * | 2011-04-18 | 2012-10-19 | Colas Sa | Bituminous asphalt composition, useful for realizing road bases of antinoise roadways, comprises a granular mixture and bitumen binder |
WO2014198742A1 (en) * | 2013-06-12 | 2014-12-18 | La Chape Liquide | Thermally conductive screed |
NO338352B1 (en) * | 2014-03-31 | 2016-08-08 | Selvaag Gruppen As | Polystyrene concrete pipe element which can be stacked to form a pipe stick, as well as a pipe stick comprising at least one such pipe element. |
US11519655B2 (en) | 2020-07-31 | 2022-12-06 | Photon Vault, Llc | Thermal energy storage and retrieval systems and methods |
US11428476B2 (en) * | 2020-09-04 | 2022-08-30 | Photon Vault, Llc | Thermal energy storage and retrieval system |
CN115073208A (en) * | 2022-07-04 | 2022-09-20 | 广东中地新材料科技有限公司 | Heat storage type ground heating backfill cushion layer and preparation method and application thereof |
CN115073208B (en) * | 2022-07-04 | 2023-06-27 | 广东中地新材料科技有限公司 | Heat accumulating type floor heating backfill layer and preparation method and application thereof |
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