DE4320917A1 - Process for producing an aggregate for the concrete industry - Google Patents
Process for producing an aggregate for the concrete industryInfo
- Publication number
- DE4320917A1 DE4320917A1 DE19934320917 DE4320917A DE4320917A1 DE 4320917 A1 DE4320917 A1 DE 4320917A1 DE 19934320917 DE19934320917 DE 19934320917 DE 4320917 A DE4320917 A DE 4320917A DE 4320917 A1 DE4320917 A1 DE 4320917A1
- Authority
- DE
- Germany
- Prior art keywords
- mixture
- waste
- granules
- aggregate
- melt
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000008187 granular material Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims abstract description 11
- 239000000155 melt Substances 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000000197 pyrolysis Methods 0.000 claims abstract description 3
- 239000013502 plastic waste Substances 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- -1 Polyethylene Polymers 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000004519 grease Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/21—Agglomeration, binding or encapsulation of solid waste using organic binders or matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/065—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts containing impurities
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00129—Extrudable mixtures
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines Zuschlagstoffes für die Betonindustrie; die nach dem Verfahren hergestellten Zuschlagstoffe sollen antei lig auch bekannten Zuschlagstoffen, wie Kies oder Sand, zugefügt werden können.The invention relates to a method for manufacturing an aggregate for the concrete industry; the after aggregates produced in the process are intended to also known additives, such as gravel or sand, can be added.
In DIN 4226, Bl. 1 bis 3, sind Zuschläge für Beton be schrieben, wobei hierunter ein Gemenge aus ungebrochenen und/oder gebrochenen Körnern aus natürlichen und/oder künstlichen mineralischen Stoffen verstanden wird. Zu schläge bestehen aus etwa gleich oder verschieden großen Körnern mit dichten Gefügen. Gesprochen wird von Sand bei einer Korngröße bis zu 4 mm, von Kies bei einer Korn größe von 4-32 mm und von Grobkies bei einer Korngröße von 32-63 mm. Bekannt sind auch künstlich hergestellte Zuschläge, z. B. aus Hochofenstückschlacke, Schmelz schlacke oder Hochofenschlackensand.In DIN 4226, pages 1 to 3, there are surcharges for concrete wrote, including a mixture of unbroken and / or broken grains from natural and / or artificial mineral substances is understood. To Blows consist of roughly the same or different sizes Grains with dense structures. We are talking about sand with a grain size up to 4 mm, from gravel with a grain size of 4-32 mm and coarse gravel with a grain size from 32-63 mm. Artificially produced ones are also known Surcharges, e.g. B. from blast furnace slag, smelt slag or blast furnace slag sand.
Zuschläge dürfen sich unter Einwirkung von Wasser nicht erweichen, sich nicht zersetzen, mit den Zementbestand teilen keine schädlichen Verbindungen eingehen und den Korrosionsschutz der Bewehrung nicht beeinträchtigen. Je nach Verwendungszweck und Aufgabe muß der Zuschlag hin sichtlich der Kornzusammensetzung, Reinheit, Festigkeit, Kornform, Widerstand gegen Frost oder Abnutzung besonde ren Anforderungen genügen. Surcharges are not allowed under the influence of water soften, not decompose, with the cement stock do not share any harmful connections and the Do not impair the corrosion protection of the reinforcement. Each depending on the purpose and task, the surcharge must go visually the grain composition, purity, strength, Grain shape, resistance to frost or wear meet your requirements.
Hierbei kommt es auf den Verwendungszweck des Betons an. Beton, der lediglich als Befestigung unterhalb von Pfla sterungen oder dergleichen dient, genügt geringeren An forderungen als Beton, der beispielsweise als Sichtbeton in Wohnhäusern Einsatz findet.It depends on the purpose of the concrete. Concrete, which is only used as an attachment below Pfla Serves or the like, less is sufficient requirements as concrete, for example as exposed concrete used in residential buildings.
Es ist bekannt, daß der Abbau von Kiesen und Sänden in vielen Gegenden Deutschlands auf umweltrechtliche und na turschützerische Bedenken stößt. Auf der anderen Seite fallen, beispielsweise im Rahmen des sogenannten Dualen Systems Deutschland (DSD = Aktion "Grüner Punkt") große Mengen von Kunststoffabfällen aus Verpackungen an, die entgegen der ursprünglichen Erwartung in der großen an fallenden Menge nicht recycelt werden können (vgl. bei spielsweise Sendung HEUTE, ZDF, 15.6.1993, 21.45 Uhr). Bei den aus Verpackungen und Umhüllungen stammenden Kunststoffabfällen handelt es sich um solche, die einen großen Anteil von Polyethylen enthalten. PE ist ein gegen Umwelteinflüsse resistenter, aber selbst absolut untoxisch und inert wirkender Kunststoff. Es hat sich herausgestellt, daß Granulat aus PE bis zu einer Menge von 10 Vol.-% als Zuschlagstoff geeignet ist, wenn eine Wärmebelastung des Betons bzw. des Tonsteins anschlie ßend keine Rolle spielt.It is known that the mining of gravel and sand in many areas of Germany on environmental and na protection concerns. On the other hand fall, for example in the context of the so-called dual Systems Germany (DSD = "Green Dot" campaign) large Amounts of plastic waste from packaging to the contrary to the original expectation in the large falling quantity cannot be recycled (see for example, broadcast TODAY, ZDF, June 15, 1993, 9.45 p.m.). For those that come from packaging and wrapping Plastic waste is one that contain a large proportion of polyethylene. PE is a more resistant to environmental influences, but absolutely absolute non-toxic and inert plastic. It has found that PE granules up to an amount of 10% by volume is suitable as an additive if one Then heat load the concrete or the clay block eats no matter.
Für die Erfindung stellt sich demnach der Anspruch, ein Betonzuschlagmittel unter Verwendung von in großen Men gen anfallenden Kunststoffabfällen herzustellen.Accordingly, the claim arises for the invention Concrete aggregate using large quantities to produce plastic waste.
Die Erfindung löst dieses Problem durch ein Verfahren zur Herstellung eines Zuschlagstoffes für die Betonindu strie, welches durch folgende Verfahrensschritte gekenn zeichnet ist:The invention solves this problem by a method for the production of an aggregate for the concrete indu strie, which is characterized by the following process steps draws is:
- - Kunststoffabfälle, auch nicht-artenreine, aus ver brauchten Verpackungen und Umhüllungen werden grob ge reinigt und sortiert, so daß sie insbesondere frei von Lebensmittel-, Fett- und Aluminiumresten sind, - Plastic waste, including non-pure, from ver packaging and wrappings are roughly ge cleans and sorts so that they are especially free of Are food, fat and aluminum residues,
- - Zerkleinern der gereinigten Abfälle auf eine Korn größe, die das Vermischen erleichtert und Vermischen der Abfälle,- Crushing the cleaned waste to a grain size that facilitates mixing and mixing the waste,
- - Erhitzen des Gemisches bis auf eine Temperatur, bei der wenigstens 50 Vol.-% der im Gemisch vorhandenen Kunststoffe geschmolzen sind, aber eine Pyrolyse noch nicht stattfindet, und Verrühren der ungeschmolzenen Teile in der Schmelze,- heating the mixture to a temperature at of at least 50% by volume of the mixture Plastics have melted, but pyrolysis still does not take place, and stir the unmelted Parts in the melt,
- - Extrudieren oder Herauspressen des Gemisches und Zerkl einern des austretenden Stranges zu einem Granulathäch sel,- Extrude or extrude the mixture and crush it one of the emerging strand to a granulate roof sel,
- - Abkühlen und Erstarrenlassen des Granulathächsels zum Granulat.- Cooling and solidification of the granules to Granules.
Die nach dem Verfahren hergestellten Zuschlagstoffe sind inert, ergeben für viele Betonarten verwendbare Zuschlag stoffe, sind jedoch nicht wärmebeständig, so daß ein Brennen über eine Temperatur von 100°C vermieden werden sollte. Es ist auch möglich, die Zuschlagstoffe anteilig bekannten Zuschlägen, wie Kies oder Sand, beizumischen.The aggregates produced by the process are inert, result in a surcharge that can be used for many types of concrete fabrics, but are not heat resistant, so that a Burning over a temperature of 100 ° C can be avoided should. It is also possible to proportionate the aggregates known additives, such as gravel or sand.
Da Polyethylen und ähnlich strukturierte Polyolefine einen relativ niedrigen Schmelzpunkt haben und in der Masse der aus verbrauchten Packungen bestehenden Kunst stoffabfällen vorherrschen, ist es im allgemeinen ledig lich erforderlich, auf die Schmelztemperatur des Poly ethylens zu erhitzen, die etwa bei 120°C liegt; bei Bedarf kann auch bei höherer Temperatur geschmolzen werden.Because polyethylene and similarly structured polyolefins have a relatively low melting point and in which Mass of art consisting of used packs waste is predominant, it is generally single Lich required to the melting temperature of the poly to heat ethylene, which is about 120 ° C; at Demand can also melt at higher temperatures become.
Es ist sogar möglich, der Schmelze körnige, nicht durch schmelzende Stoffe hinzuzufügen, wie z. B. Kies, Sand, Holzspäne, Schlacken, Granulate, Blähton-Granulate und dergleichen, bis etwa zu einem Anteil von 10-15 Gew.-%. Wesentlich ist, daß die Granulate der nicht-schmelzenden Stoffe umhüllt werden von einer Hülle geschmolzenen und erstarrten Polyolefins. It is even possible to granulate the melt, not through it add melting substances, such as B. gravel, sand, Wood chips, slags, granules, expanded clay granules and the like, up to a proportion of 10-15% by weight. It is essential that the granules of the non-melting Fabrics are melted and wrapped by a sheath solidified polyolefin.
Vorzugsweise wird zur Verwendung als Betonzuschlag ein Gemisch aus gebrochenen Körnern mit einem Größtkorn von 32 mm verwendet, während als Tonsteinzuschlag das Größt korn lediglich 10 mm beträgt.It is preferred to use as a concrete aggregate Mixture of broken grains with a maximum grain size of 32 mm used, while the largest as a clay stone surcharge grain is only 10 mm.
Ein Ausführungsbeispiel wird im nachfolgenden beschrie ben:An embodiment is described below ben:
20 kg eines Kunststoffabfallgemisches aus Verpackungen, insbesondere leere Lebensmittelpackungen, sowie Kunst stoffolien wird in einem heißen Wasserbad gereinigt, wo bei Lebensmittelreste, Fettreste und Aluminiumteile durch Flottieren und/oder Abspülen entfernt werden.20 kg of a plastic waste mixture from packaging, especially empty food packages, as well as art Cloth films are cleaned in a hot water bath where for food residues, fat residues and aluminum parts be removed by floating and / or rinsing.
Die Kunststoffabfälle werden durch Scheren auf eine Korn größe zerkleinert, die durch ein Sieb mit einer Siebma schenweite von 82 mm paßt. Anschließend werden die zer kleinerten Abfälle vermischt.The plastic waste is sheared onto a grain size crushed by a sieve with a sieve width of 82 mm. Then the zer mixed small waste.
In einer Edelstahl-Anlage werden die Kunststoffabfälle bis zu einer Temperatur von 150°C erhitzt, wobei der größte Teil der Abfälle geschmolzen ist und nur etwa 10 Gew.-% ungeschmolzene Anteile vorhanden sind, die aus Holz, Glassplittern, kleinen Steinen und Sand, sowie aus Metallstücken bestehen. Der Schmelze werden Sand und Kies bis zu 15 Gew.-% beigemischt. Diese Teile werden zu sammen mit dem geschmolzenen Kunststoff verrührt, so daß sich eine innige Verbindung und Umhüllung in der Schmel ze ergibt. Alle nicht-schmelzenden Teile werden vom Schmelzgut umhüllt.The plastic waste is in a stainless steel system heated to a temperature of 150 ° C, the most of the waste has melted and only about 10 % By weight of unmelted portions are present which are made up of Wood, broken glass, small stones and sand, as well Pieces of metal exist. The melt will be sand and Gravel up to 15% by weight added. These parts become too mixed together with the molten plastic, so that an intimate connection and wrapping in the melt ze results. All non-melting parts are removed from the Hot melt encased.
Die Schmelze wird mit Hilfe eines Schneckenextruders oder unter Druck durch ein Mundstück mit einem Durchmes ser zwischen 2 und 20 mm gedrückt. Der herauskommende Strang wird sofort, vor dem gänzlichen Abkühlen, zu einem Granulathächsel geschnitten. Dieses kühlt ab und ist anschließend als Granulat als Zuschlag oder als Teil-Zuschlag verwendbar.The melt is made using a screw extruder or under pressure through a mouthpiece with a diameter pressed between 2 and 20 mm. The one coming out Strand becomes immediately, before cooling completely cut a granule. This cools down and is then as a granulate as a supplement or as Partial surcharge can be used.
Der gewonnene Zuschlag ist hinsichtlich Kornzusammen setzung, Reinheit, Festigkeit, Kornform, Widerstand gegen Frost und Abnutzung geeignet, Betonen von einfa cher bis mittlerer Anforderung beigemischt zu werden. Die Kunststoffagglomerate erweichen unter Einwirkung von Wasser nicht. Sie zersetzen sich nicht und die Bestand teile enthalten auch keine Stoffe, die mit dem Zement schädliche Verbindungen eingehen, da Aluminium entfernt worden ist. Der Korrosionsschutz der Bewehrung ist eben falls nicht beeinträchtigt.The award won is in terms of grain aggregate settlement, purity, firmness, grain shape, resistance suitable for frost and wear, emphasize simple to be mixed in to medium requirement. The plastic agglomerates soften under the influence of Not water. They do not decompose and the stock Parts also do not contain any substances with the cement make harmful connections because aluminum removes has been. The corrosion protection of the reinforcement is flat if not affected.
Ein weiterer Vorteil ist, daß Betonmischwerke sich de zentral an vielen Orten der Bundesrepublik Deutschland befinden, so daß auch der anfallende Kunststoffabfall nicht über weite Strecken transportiert werden muß, wenn er nach dem vorgeschlagenen Verfahren zu einem Betonzu schlag verarbeitet wird.Another advantage is that concrete mixers de centrally in many places in the Federal Republic of Germany are so that the resulting plastic waste does not have to be transported over long distances if he added concrete to the proposed process impact is processed.
Claims (5)
- - Kunststoffabfälle, auch nicht-artenreine, aus ver brauchten Verpackungen und Umhüllungen werden grob gereinigt und sortiert, so daß sie insbesondere frei von Lebensmittel-, Fett- und Aluminiumresten sind,
- - Zerkleinern der gereinigten Abfälle auf eine Korn größe, die das Vermischen erleichtert und Vermi schen der Abfälle,
- - Erhitzen des Gemisches bis auf eine Temperatur, bei der wenigstens 50 Vol.-% der im Gemisch vorhan denen Kunststoffe geschmolzen sind, aber eine Pyro lyse noch nicht stattfindet, und Verrühren der un geschmolzenen Teile in der Schmelze,
- - Extrudieren oder Herauspressen des Gemisches und Zerkleinern des austretenden Stranges zu einem Granulathächsel,
- - Abkühlen und Erstarrenlassen des Granulathächsels zum Granulat.
- - Plastic waste, including non-pure, from used packaging and wrappings are roughly cleaned and sorted so that they are free of food, fat and aluminum residues,
- - shredding the cleaned waste to a grain size that facilitates mixing and mixing of the waste,
- Heating the mixture to a temperature at which at least 50% by volume of the plastics in the mixture have melted but pyrolysis has not yet taken place, and stirring the unmelted parts in the melt,
- Extruding or pressing out the mixture and crushing the emerging strand to form a granule pod,
- - Cooling and solidification of the granules to form the granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19934320917 DE4320917A1 (en) | 1993-06-24 | 1993-06-24 | Process for producing an aggregate for the concrete industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19934320917 DE4320917A1 (en) | 1993-06-24 | 1993-06-24 | Process for producing an aggregate for the concrete industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4320917A1 true DE4320917A1 (en) | 1995-01-05 |
Family
ID=6491065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19934320917 Withdrawn DE4320917A1 (en) | 1993-06-24 | 1993-06-24 | Process for producing an aggregate for the concrete industry |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4320917A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028263A1 (en) * | 1997-11-26 | 1999-06-10 | Environmentally Engineered Concrete Products Inc. | Plastic aggregate, concrete composition and methods for making and using same |
| EP1488902A1 (en) * | 2003-06-18 | 2004-12-22 | Paolo Rebai | Method for producing a densified plastic material starting from waste plastic material |
| WO2006003409A1 (en) * | 2004-07-02 | 2006-01-12 | Tarmac Limited | Artificial aggregate comprising plastic material |
| WO2014007648A1 (en) * | 2011-12-23 | 2014-01-09 | Peter Hamish Barrow | Improvements in, or relating to, aggregate materials |
| CN107721268A (en) * | 2017-10-21 | 2018-02-23 | 深圳市正强混凝土有限公司 | A kind of concrete formulation and its regeneration technology and regenerated additive |
| CN113683329A (en) * | 2014-11-24 | 2021-11-23 | 环保大厦国际控股有限公司 | Extruded plastic aggregate for concrete |
-
1993
- 1993-06-24 DE DE19934320917 patent/DE4320917A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028263A1 (en) * | 1997-11-26 | 1999-06-10 | Environmentally Engineered Concrete Products Inc. | Plastic aggregate, concrete composition and methods for making and using same |
| EP1488902A1 (en) * | 2003-06-18 | 2004-12-22 | Paolo Rebai | Method for producing a densified plastic material starting from waste plastic material |
| WO2006003409A1 (en) * | 2004-07-02 | 2006-01-12 | Tarmac Limited | Artificial aggregate comprising plastic material |
| WO2014007648A1 (en) * | 2011-12-23 | 2014-01-09 | Peter Hamish Barrow | Improvements in, or relating to, aggregate materials |
| CN113683329A (en) * | 2014-11-24 | 2021-11-23 | 环保大厦国际控股有限公司 | Extruded plastic aggregate for concrete |
| CN107721268A (en) * | 2017-10-21 | 2018-02-23 | 深圳市正强混凝土有限公司 | A kind of concrete formulation and its regeneration technology and regenerated additive |
| CN107721268B (en) * | 2017-10-21 | 2020-05-19 | 深圳市正强混凝土有限公司 | Concrete formula, regeneration process and regeneration additive thereof |
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