FR3125525A1 - RECYCLED AND RECYCLABLE MODULAR MATERIAL - Google Patents

RECYCLED AND RECYCLABLE MODULAR MATERIAL Download PDF

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Publication number
FR3125525A1
FR3125525A1 FR2108027A FR2108027A FR3125525A1 FR 3125525 A1 FR3125525 A1 FR 3125525A1 FR 2108027 A FR2108027 A FR 2108027A FR 2108027 A FR2108027 A FR 2108027A FR 3125525 A1 FR3125525 A1 FR 3125525A1
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FR
France
Prior art keywords
aggregates
density polyethylene
low density
process according
volume
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.)
Pending
Application number
FR2108027A
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French (fr)
Inventor
Antoine DUFORT
Lionel GRIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vinci Construction SAS
Original Assignee
Eurovia SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eurovia SA filed Critical Eurovia SA
Priority to FR2108027A priority Critical patent/FR3125525A1/en
Publication of FR3125525A1 publication Critical patent/FR3125525A1/en
Pending legal-status Critical Current

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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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/045—Polyalkenes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
    • B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/006—Waste materials as binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • 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
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0633—LDPE, i.e. low density 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
    • B29K2105/26—Scrap or recycled material
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente divulgation concerne un procédé de fabrication d’un matériau modulaire pour la construction d’infrastructures de transport et d’aménagements faisant la part belle à la valorisation du PEBD recyclé ou biosourcé. La présente invention concerne également un matériau modulaire obtenu par un tel procédé.This disclosure relates to a process for manufacturing a modular material for the construction of transport infrastructure and facilities giving pride of place to the recovery of recycled or biosourced LDPE. The present invention also relates to a modular material obtained by such a process.

Description

MATERIAU MODULAIRE RECYCLE ET RECYCLABLERECYCLED AND RECYCLABLE MODULAR MATERIAL

DOMAINE DE L’INVENTIONFIELD OF THE INVENTION

La présente invention concerne un procédé de fabrication d’un matériau modulaire pour la construction d’infrastructures de transport et d’aménagements urbains faisant la part belle à la valorisation du PEBD recyclé ou biosourcé. La présente invention concerne également un matériau modulaire obtenu par un tel procédé.The present invention relates to a process for the manufacture of a modular material for the construction of transport infrastructures and urban developments giving pride of place to the recovery of recycled or biosourced LDPE. The present invention also relates to a modular material obtained by such a method.

ARRIERE PLAN TECHNOLOGIQUETECHNOLOGICAL BACKGROUND

Associées aux problèmes environnementaux actuels, l’utilisation et la formulation de matériaux innovants à base de plastiques recyclés est un axe de recherche très important.Associated with current environmental problems, the use and formulation of innovative materials based on recycled plastics is a very important area of research.

Le polyéthylène de basse densité (PEBD ; densité 0,91 à 0,925) est un polymère thermoplastique de grande consommation obtenu par polymérisation de l’éthylène. Ce matériau compte parmi les plastiques les plus utilisés dans l’industrie et l’agriculture. De par sa grande abondance, le PEBD recyclé s’avère être une ressource de choix pour la production de nouveaux matériaux.Low-density polyethylene (LDPE; density 0.91 to 0.925) is a high-consumption thermoplastic polymer obtained by polymerization of ethylene. This material is one of the most widely used plastics in industry and agriculture. Due to its great abundance, recycled LDPE is proving to be a resource of choice for the production of new materials.

L’intégration de plastiques dans des formulations de liants bitumineux est une technologie déjà utilisée dans de nombreux projets et applications. La plupart des solutions proposées consistent à mélanger le bitume avec des polymères recyclés pour obtenir un liant avec de meilleures performances (résistance mécanique accrue, vieillissement climatique plus lent, meilleure résistance à la déformation permanente, etc.). En Inde par exemple, plus de 30 000 km d’enrobés bitumineux intègrent déjà des plastiques recyclés. Cependant, la part de plastiques recyclés mélangée au bitume pour la plupart des formulations demeure faible (de 3 à 20%). Le liant ne représentant que 5% de la formulation en moyenne, la proportion finale de plastique dans l’enrobé est extrêmement faible.The integration of plastics into bituminous binder formulations is a technology already used in many projects and applications. Most of the solutions proposed consist of mixing bitumen with recycled polymers to obtain a binder with better performance (increased mechanical resistance, slower climatic aging, better resistance to permanent deformation, etc.). In India, for example, more than 30,000 km of bituminous mixes already incorporate recycled plastics. However, the proportion of recycled plastics mixed with bitumen for most formulations remains low (from 3 to 20%). As the binder represents only 5% of the formulation on average, the final proportion of plastic in the mix is extremely low.

Ainsi, un besoin demeure pour la mise à disposition d’un procédé simple et économiquement attractif de préparation d’un matériau utile en construction routière qui fait la part belle à la valorisation des plastiques recyclés, en particulier au PEBD recyclé.Thus, a need remains for the provision of a simple and economically attractive process for the preparation of a material useful in road construction which gives pride of place to the recovery of recycled plastics, in particular recycled LDPE.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

La présente invention porte sur un procédé de fabrication d’un matériau modulaire pour la construction d’infrastructures de transport et d’aménagements urbains. Le procédé comprend les étapes suivantes :The present invention relates to a method of manufacturing a modular material for the construction of transport infrastructure and urban amenities. The process includes the following steps:

(a) fourniture de granulats et de polyéthylène de basse densité recyclé ou biosourcé ;(a) supply of aggregates and recycled or biosourced low-density polyethylene;

(b) mélange à froid des granulats et du polyéthylène de basse densité dans des proportions conduisant à un mélange comprenant au moins 10% en volume de polyéthylène de basse densité ;(b) cold mixing of the aggregates and the low density polyethylene in proportions leading to a mixture comprising at least 10% by volume of low density polyethylene;

(c) dépôt du mélange obtenu à l’étape b) dans un moule ;(c) depositing the mixture obtained in step b) in a mould;

(d) chauffage du mélange placé dans le moule pour atteindre une température supérieure à la température de fusion du polyéthylène de basse densité et compression du mélange placé dans le moule ;(d) heating the mixture placed in the mold to reach a temperature above the melting temperature of the low density polyethylene and compressing the mixture placed in the mold;

(e) refroidissement et démoulage du matériau modulaire ainsi obtenu.(e) cooling and demoulding of the modular material thus obtained.

La présente invention porte également sur un matériau modulaire pouvant être obtenu par un tel procédé ainsi que sur l’utilisation de ce matériau modulaire pour la construction d’infrastructures de transport et d’aménagements urbains et sur les infrastructures de transport ou aménagements urbains ainsi obtenus.The present invention also relates to a modular material that can be obtained by such a process as well as to the use of this modular material for the construction of transport infrastructures and urban facilities and to the transport infrastructures or urban facilities thus obtained. .

Claims (13)

Procédé de fabrication d’un matériau modulaire pour la construction d’infrastructures de transport et d’aménagements urbains comprenant les étapes suivantes :
(a) fourniture de granulats et de polyéthylène de basse densité recyclé ou biosourcé ;
(b) mélange à froid des granulats et du polyéthylène de basse densité dans des proportions conduisant à un mélange comprenant au moins 10% en volume de polyéthylène de basse densité ;
(c) dépôt du mélange obtenu à l’étape b) dans un moule ;
(d) chauffage du mélange placé dans le moule pour atteindre une température supérieure à la température de fusion du polyéthylène de basse densité et compression du mélange placé dans le moule ;
(e) refroidissement et démoulage du matériau modulaire ainsi obtenu.Process for the manufacture of a modular material for the construction of transport infrastructures and urban facilities comprising the following steps:
(a) supply of aggregates and recycled or biosourced low-density polyethylene;
(b) cold mixing of the aggregates and the low density polyethylene in proportions leading to a mixture comprising at least 10% by volume of low density polyethylene;
(c) depositing the mixture obtained in step b) in a mould;
(d) heating the mixture placed in the mold to reach a temperature above the melting temperature of the low density polyethylene and compressing the mixture placed in the mold;
(e) cooling and demoulding of the modular material thus obtained. Le procédé selon la revendication 1 dans lequel le mélange à froid des granulats et du polyéthylène de basse densité est réalisé dans des proportions conduisant à un mélange comprenant de 60 à 90% en volume de granulats et de 10 à 40% en volume de polyéthylène de basse densité, la somme des proportions de granulats et du polyéthylène de basse densité étant égale à 100%.The process according to claim 1 in which the cold mixing of the aggregates and the low density polyethylene is carried out in proportions leading to a mixture comprising from 60 to 90% by volume of aggregates and from 10 to 40% by volume of polyethylene of low density, the sum of the proportions of aggregates and low density polyethylene being equal to 100%. Le procédé selon la revendication 1 ou 2 dans lequel les granulats sont des granulats minéraux, des granulats plastiques ou leurs mélanges.The process according to claim 1 or 2 wherein the aggregates are mineral aggregates, plastic aggregates or mixtures thereof. Le procédé selon l’une des revendications précédentes dans lequel les granulats sont des granulats minéraux ayant une taille supérieure à 4 mm.The process according to one of the preceding claims, in which the aggregates are mineral aggregates having a size greater than 4 mm. Le procédé selon l’une des revendications précédentes dans lequel le chauffage et la compression du mélange placé dans le moule sont réalisés de manière concomitante.The process according to one of the preceding claims, in which the heating and the compression of the mixture placed in the mold are carried out concomitantly. Le procédé selon l’une des revendications précédentes dans lequel l’étape b) est réalisée à température allant de 10°C à 80°C.The process according to one of the preceding claims, in which step b) is carried out at a temperature ranging from 10°C to 80°C. Le procédé selon l’une des revendications précédentes dans lequel le polyéthylène de basse densité recyclé est un polyéthylène de basse densité de source ménagère.The method of any preceding claim wherein the recycled low density polyethylene is household source low density polyethylene. Le procédé selon l’une des revendications précédentes dans lequel les granulats minéraux sont choisis parmi les granulats issus de carrière ou de gravière, les agrégats d'enrobés, les granulats de béton concassé et leurs mélanges.The process according to one of the preceding claims, in which the mineral aggregates are chosen from aggregates from quarries or gravel pits, asphalt aggregates, crushed concrete aggregates and mixtures thereof. Matériau modulaire comprenant des granulats et au moins 10% en volume de polyéthylène de basse densité recyclé ou biosourcé, le matériau étant susceptible d’être obtenu par le procédé selon l’une des revendications précédentes.Modular material comprising aggregates and at least 10% by volume of recycled or biosourced low-density polyethylene, the material being capable of being obtained by the process according to one of the preceding claims. Matériau modulaire selon la revendication 9 comprenant de 60 à 90% en volume de granulats minéraux ayant une taille supérieure à 4 mm et de 10 à 40% en volume de polyéthylène de basse densité, la somme des proportions de granulats minéraux et du polyéthylène de basse densité étant égale à 100%.Modular material according to claim 9 comprising from 60 to 90% by volume of mineral aggregates having a size greater than 4 mm and from 10 to 40% by volume of low density polyethylene, the sum of the proportions of mineral aggregates and low density polyethylene density being equal to 100%. Matériau modulaire selon la revendication 9 ou 10 se présentant sous la forme de blocs, de dalles, de pavés ou de nappes.Modular material according to claim 9 or 10 in the form of blocks, slabs, cobblestones or mats. Utilisation du matériau modulaire selon l’une des revendications 9 à 11 pour la construction d’infrastructures de transport et d’aménagements urbains.Use of the modular material according to one of Claims 9 to 11 for the construction of transport infrastructures and urban developments. Infrastructures de transport ou aménagement urbain comprenant un matériau modulaire selon l’une des revendications 9 à 11 ou un assemblage de matériaux modulaires selon l’une des revendications 9 à 11.Transport infrastructure or urban development comprising a modular material according to one of Claims 9 to 11 or an assembly of modular materials according to one of Claims 9 to 11.
FR2108027A 2021-07-23 2021-07-23 RECYCLED AND RECYCLABLE MODULAR MATERIAL Pending FR3125525A1 (en)

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FR2108027A FR3125525A1 (en) 2021-07-23 2021-07-23 RECYCLED AND RECYCLABLE MODULAR MATERIAL

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FR2108027 2021-07-23
FR2108027A FR3125525A1 (en) 2021-07-23 2021-07-23 RECYCLED AND RECYCLABLE MODULAR MATERIAL

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112681A (en) * 1959-08-03 1963-12-03 Exxon Research Engineering Co Paving with polymer-bonded aggregates
US5403117A (en) * 1992-04-09 1995-04-04 Sumitomo Rubber Industries, Ltd. Pavement, a paving material and methods of producing said pavement and said paving material
US20150114552A1 (en) * 2012-05-30 2015-04-30 Magma Flooring LLC Polymeric composites, resulting panels, and method for producing the same
WO2020130762A1 (en) * 2018-12-18 2020-06-25 Madani Zakaria Production of ecological blocks based on a new material composed of mining waste and of plastic waste using a new industrial method and new technology

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112681A (en) * 1959-08-03 1963-12-03 Exxon Research Engineering Co Paving with polymer-bonded aggregates
US5403117A (en) * 1992-04-09 1995-04-04 Sumitomo Rubber Industries, Ltd. Pavement, a paving material and methods of producing said pavement and said paving material
US20150114552A1 (en) * 2012-05-30 2015-04-30 Magma Flooring LLC Polymeric composites, resulting panels, and method for producing the same
WO2020130762A1 (en) * 2018-12-18 2020-06-25 Madani Zakaria Production of ecological blocks based on a new material composed of mining waste and of plastic waste using a new industrial method and new technology

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANTOINE R ET AL: "Materiaux composites a base de graves et de liants polymeres-IV. Etude des proprietes mecaniques des materiaux realises a base de polyethylene noble", EUROPEAN POLYMER JOURNAL, PERGAMON PRESS LTD OXFORD, GB, vol. 20, no. 11, 1 January 1984 (1984-01-01), pages 1073 - 1077, XP024349592, ISSN: 0014-3057, [retrieved on 19840101], DOI: 10.1016/0014-3057(84)90132-0 *
MOHAN HARISH T ET AL: "Transforming urban waste into construction blocks for a sanitation infrastructure: A step towards addressing rural open defecation", 2017 IEEE GLOBAL HUMANITARIAN TECHNOLOGY CONFERENCE (GHTC), IEEE, 19 October 2017 (2017-10-19), pages 1 - 9, XP033282778, DOI: 10.1109/GHTC.2017.8239291 *

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