EP2764160B1 - Procédé de recyclage de revêtements synthétiques de sport en utilisant un agent stabilisant en poudre - Google Patents

Procédé de recyclage de revêtements synthétiques de sport en utilisant un agent stabilisant en poudre Download PDF

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Publication number
EP2764160B1
EP2764160B1 EP12772892.1A EP12772892A EP2764160B1 EP 2764160 B1 EP2764160 B1 EP 2764160B1 EP 12772892 A EP12772892 A EP 12772892A EP 2764160 B1 EP2764160 B1 EP 2764160B1
Authority
EP
European Patent Office
Prior art keywords
stabilizing agent
complying
soil
hydraulic
standard
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.)
Not-in-force
Application number
EP12772892.1A
Other languages
German (de)
English (en)
Other versions
EP2764160A1 (fr
Inventor
Marco Squinzi
Cristiano Maltese
Elisa PORTIGLIATTI
Carlo Pistolesi
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.)
Mapei SpA
Original Assignee
Mapei SpA
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Publication of EP2764160A1 publication Critical patent/EP2764160A1/fr
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Publication of EP2764160B1 publication Critical patent/EP2764160B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/02—Foundations, e.g. with drainage or heating arrangements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00—Foundations for pavings
    • E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00—Foundations for pavings
    • E01C3/04—Foundations produced by soil stabilisation

Definitions

  • the present invention relates to a method for recycling built in synthetic sports surfaces, in particular for sports facilities, by recovering the crushed surface with a powdered stabilizing agent designed to be used in combination with soil to produce a new underlay in situ which constitutes the most suitable support for laying the new sports surface.
  • the synthetic surface generally consists of a number of components which are combined according to the requirements laid down by the sports federations concerned (e.g. FIFA). There are multiple possible permutations in terms of underlay, type of synthetic surface, and optionally, the product used for the stabilizing infill.
  • Stabilizing agent means a binder as defined, for example, in Italian standard CNR_UNI 10006 (cement, lime, asphalt and tar), published in June 2002 .
  • CNR UNI 10006 reports geotechnical classification of soils mostly used for pavements. The classification is based on particle size composition as well as the plasticity characteristics of the soils and it divides the soils into 7 primary groups designed as A-1, A-2.... A-7.
  • the process according to the invention comprises the following stages:
  • the invention also relates to a novel stabilizing agent which is particularly effective for application in the process described above, comprising a hydraulic binder and/or mixtures of hydraulic binders complying with standards EN197 and EN459, or an air binder complying with standard EN459, optionally mixed with minerals with latent hydraulic activity complying with standard EN15167, and/or minerals with pozzolanic activity complying with standards EN13263 and EN450.
  • hydraulic binders examples include Portland cement and hydraulic lime. Binders with latent hydraulic activity are typically blast furnace slag, while minerals with pozzolanic activity are fly ash and microsilica.
  • Said process can be advantageously applied to all types of material used to lay synthetic turf, such as those listed in the Prior Art section above.
  • the invention is illustrated in greater detail in the following example, which relates to treatment with the formulation according to the invention of a natural stabilized material (called Stabilized Vitali) having a particle size of between 0 and 30 mm, which can be described as sandy gravel and belongs to Class A1-a according to standard CNR UNI 10006.
  • Stabilized Vitali a natural stabilized material having a particle size of between 0 and 30 mm, which can be described as sandy gravel and belongs to Class A1-a according to standard CNR UNI 10006.
  • the stabilized material underwent a Proctor compaction test (according to CNR B.U. no. 69), and the Optimum Moisture Content (OMC) was thus determined as 9% by weight.
  • the California bearing ratio (CBR) (according to CNR UNI 10009) of the natural stabilized material tested, with the addition of 5% by weight of the formulation according to the invention, was then determined.
  • the results demonstrate that the addition of the formulation according to the invention significantly improves the geomechanical properties of the material tested, giving it a bearing ratio exceeding 250%.
  • the California bearing ratio must be greater than 80 for the base layer in the case of protected roads with a medium and high traffic intensity, and the unprotected surface wear layer of roads with limited traffic intensity.
  • the California bearing ratio of the mixture of stabilized material and ground synthetic turf was also determined, the dose by weight of the formulation according to the invention remaining unchanged.
  • the California bearing ratio of said mixture is also greater than 250%: this means that despite the introduction of ground turf into the mixture, the geomechanical properties of the treated material significantly improved.
  • the compression resistance of the mixture with the turf granulate remains unchanged compared with the mixture only containing stabilized material and the formulation according to the invention.
  • the formulation according to the invention therefore significantly improves the geomechanical properties of the treated material and allows the granulate deriving from grinding and crushing of the worn synthetic surface to be used in the mixture.
  • Cement - Part 1 Composition, specifications and conformity criteria for common cements.
  • Ground granulated blast furnace slag for use in concrete, mortar and grout - Part 1 Definitions, specifications and conformity criteria.
  • Silica fume for concrete - Part 1 Definitions, requirements and conformity criteria.
  • Admixtures for concrete, mortar and grout - Part 2 Concrete admixtures - Definitions, requirements, conformity, marking and labelling.
  • Admixtures for concrete, mortar and grout - Part 3 Admixtures for masonry mortar - Definitions, requirements, conformity and marking and labelling.
  • Admixtures for concrete, mortar and grout - Part 4 Admixtures for grout for prestressing tendons - Definitions, requirements, conformity, marking and labelling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Claims (6)

  1. Procédé pour le recyclage de surfaces synthétiques de sports intégrées par:
    a) concassage et broyage de la surface synthétique de sports existante in situ ;
    b) homogénéisation de la surface concassée et broyée et son incorporation dans la thibaude existante (un sol d'une classe comprise entre A1 et A6 selon CNR UNI 10006) pour toute l'épaisseur de traitement, à savoir 5 à 20 cm ;
    c) étalement d'un agent stabilisant en poudre dans une quantité comprise entre 2 et 10 % en poids du poids du sol traité ;
    d) mélange du sol existant, de la surface concassée et broyée et de l'agent stabilisant ;
    e) mouillage et compactage du sol stabilisé.
  2. Procédé selon la revendication 1, dans lequel l'agent stabilisant est un liant hydraulique et/ou des mélanges de liants hydrauliques conformes aux normes EN 197 et EN459.
  3. Procédé selon la revendication 1, dans lequel l'agent stabilisant est un liant aérien conforme à la norme EN459.
  4. Procédé selon la revendication 1, dans lequel l'agent stabilisant est un liant hydraulique et/ou un liant aérien mélangé à des minéraux ajoutés ayant une activité hydraulique latente conforme à la norme EN15167.
  5. Procédé selon la revendication 1, dans lequel l'agent stabilisant est un liant hydraulique et/ou un liant aérien mélangé avec des minéraux ajoutés ayant une activité hydraulique latente conforme à la norme EN15167, et/ou des minéraux ajoutés ayant une activité pouzzolanique conforme aux normes EN13263 et EN450.
  6. Procédé selon la revendication 1, dans lequel l'agent stabilisant peut être modifié par des ajouts de mélanges conformes à la norme EN934 et/ou de fibres synthétiques et/ou de minéraux.
EP12772892.1A 2011-09-23 2012-09-21 Procédé de recyclage de revêtements synthétiques de sport en utilisant un agent stabilisant en poudre Not-in-force EP2764160B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001724A ITMI20111724A1 (it) 2011-09-23 2011-09-23 Processo per il riciclo di superfici sportive sintetiche mediante l'utilizzo di agenti stabilizzanti in polvere
PCT/EP2012/068712 WO2013041710A1 (fr) 2011-09-23 2012-09-21 Procédé de recyclage de surfaces de sport synthétiques à l'aide d'agents stabilisateurs en poudre

Publications (2)

Publication Number Publication Date
EP2764160A1 EP2764160A1 (fr) 2014-08-13
EP2764160B1 true EP2764160B1 (fr) 2016-04-06

Family

ID=44993697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12772892.1A Not-in-force EP2764160B1 (fr) 2011-09-23 2012-09-21 Procédé de recyclage de revêtements synthétiques de sport en utilisant un agent stabilisant en poudre

Country Status (3)

Country Link
EP (1) EP2764160B1 (fr)
IT (1) ITMI20111724A1 (fr)
WO (1) WO2013041710A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200001409A1 (it) * 2022-01-28 2022-04-28 Universita’ Degli Studi Di Modena E Reggio Emilia Miscela per massetti alleggeriti contenente aggregati inerti generati dal recupero di campi sportivi

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD140245A1 (de) * 1978-11-17 1980-02-20 Roland Herr Gips-zement-puzzolan-bindemittel
RS49668B (sr) 1998-04-15 2007-09-21 Road Building International (Barbados) Limited, Postupak za poboljšanje inženjerskih svojstava tla
JP2008025284A (ja) * 2006-07-24 2008-02-07 Bridgestone Corp 弾性舗装体のリサイクル方法
JP4219962B1 (ja) * 2007-08-10 2009-02-04 クリヤマ株式会社 人工芝の張替え方法及び人工芝処理装置

Also Published As

Publication number Publication date
WO2013041710A1 (fr) 2013-03-28
EP2764160A1 (fr) 2014-08-13
ITMI20111724A1 (it) 2013-03-24

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