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1. WO2020110019 - METHOD OF ENHANCED RESIN-REINFORCEMENT OF A STONE BLOCK

Publication Number WO/2020/110019
Publication Date 04.06.2020
International Application No. PCT/IB2019/060215
International Filing Date 27.11.2019
IPC
B29C 70/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
40Shaping or impregnating by compression
42for producing articles of definite length, i.e. discrete articles
44using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
B29C 70/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
34and shaping or impregnating by compression
B29K 105/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
105Condition, form or state of moulded material
06containing reinforcements, fillers or inserts
08of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B29K 709/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
709Use of inorganic materials not provided for in groups B29K703/-B29K707/106
B29K 67/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
67Use of polyesters as moulding material
B29K 63/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
63Use of epoxy resins as moulding material
CPC
B29C 39/10
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
39Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
02for making articles of definite length, i.e. discrete articles
10incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
B29C 39/42
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
39Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
22Component parts, details or accessories; Auxiliary operations
42Casting under special conditions, e.g. vacuum
B29K 2709/14
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2709Use of inorganic materials not provided for in groups ; B29K2703/00 - B29K2707/00; , for preformed parts, e.g. for inserts
14Stones
C04B 41/009
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
009characterised by the material treated
C04B 41/4826
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
45Coating or impregnating
46with organic materials
48Macromolecular compounds
4826Polyesters
C04B 41/4853
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
45Coating or impregnating
46with organic materials
48Macromolecular compounds
4853Epoxides
Applicants
  • GIRASOLE PIETRE NATURALI S.R.L. [IT]/[IT]
Inventors
  • ZANTEDESCHI, Pierangelo
Agents
  • MAROSCIA, Antonio
Priority Data
10201800001061827.11.2018IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) METHOD OF ENHANCED RESIN-REINFORCEMENT OF A STONE BLOCK
(FR) PROCÉDÉ DE RENFORCEMENT PAR RÉSINE AMÉLIORÉ D'UN BLOC DE PIERRE
Abstract
(EN)
A method of enhanced resin-reinforcement of a stone block (1) having cracks (D) and/or defects, the method comprising the steps of a) laying a sheet (2) of a flexible waterproof plastic material on a base (3) and placing a block (1) on the sheet (2), (b) applying a plurality of spacer members (4) to one or more walls of the block (1), c) folding the sheet (2) to form a container (5) with a gap (6) from the outer surface of the block (1) formed by the members (4), d) hermetically sealing the container (5) and at least one first connector (7) thereto, and e) connecting the first connector (7) to a vacuum pump (12) via first pipes (8) to create a vacuum in the container (5), f) introducing a resin (R) into the container (5) via second pipes (9) to fill the gap (6), g) maintaining the vacuum in the container (5) for a predetermined time (t) until the resin (R) is at least partially cured and h) disconnecting the pipes (8, 9) from the container (5) and removing the block (1). Once the members (4) have been applied in the step of b), a reinforcing belt (11) made of a flexible sheet material is wound on the members (4) and the belt (11) is pulled to exert a radial inward force on the block (1).
(FR)
La présente invention concerne un procédé de renforcement par résine amélioré d'un bloc de pierre (1) ayant des fissures (D) et/ou des défauts, le procédé comprenant les étapes consistant à a) déposer une feuille (2) d'un matériau plastique souple imperméable à l'eau sur une base (3) et placer un bloc (1) sur la feuille (2), (b) appliquer une pluralité d'éléments d'espacement (4) sur une ou plusieurs parois du bloc (1), c) plier la feuille (2) pour former un récipient (5) avec un espace (6) à partir de la surface externe du bloc (1) formé par les éléments (4), d) fermer hermétiquement le récipient (5) et au moins un premier raccord (7) avec ce dernier, et e) raccorder le premier raccord (7) à une pompe à vide (12) par l'intermédiaire de premiers tuyaux (8) pour créer un vide dans le récipient (5), f) introduire une résine (R) dans le récipient (5) par l'intermédiaire de seconds tuyaux (9) pour remplir l'espace (6), g) maintenir le vide dans le récipient (5) pendant un temps prédéfini (t) jusqu'à ce que la résine (R) soit au moins partiellement durcie et h) déconnecter les tuyaux (8, 9) du récipient (5) et retirer le bloc (1). Une fois que les éléments (4) ont été appliqués dans l'étape b), une courroie de renforcement (11) constituée d'un matériau en feuille souple est enroulée sur les éléments (4) et la courroie (11) est tirée pour exercer une force radiale vers l'intérieur sur le bloc (1).
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