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Isolants thermiques en rénovation

Par Sophie Trachte et Dorothée Stiermon

Editeur EPFL

 

Ouvrage très technique et très complet sur les différentes techniques et les différents matériaux disponibles en rénovation thermique des constructions. Cet ouvrage décrit avec précisions les caractéristiques des différents matériaux présents sur le marché (isolants organiques, isolants minéraux naturels ou synthétiques, isolants composites, isolants innovants) en les décrivant (avec de nombreuses photos à l’appui) précisant leurs caractéristiques techniques chiffrées, leurs modes d’élaboration, et en balayant un grand nombre de critère permettant d’avancer vers le meilleur choix correspondant au matériau recherché .

Dans un chapitre complet il détaille leur influence sur la qualité de l’air et sur la santé. Il aborde ensuite sur une quarantaine de pages le cycle de vie des différents matériaux et leur impact environnemental.

Il aborde la notion de l’économie circulaire dans la conception et la mise en œuvre de ces différents matériaux.

 

Nombreux tableaux, articles scientifiques et thèses sur le sujet.

 

En annexe figure une liste de fabricants et producteurs

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Riou glass rentre sur le marché espagnol

 

Aprés une série de rachats de miroiteries en France sur ces 15 dernières années, puis être rentré en Belgique ( Euroglass) et en Italie ( Cappelletti et Roleri ) en 2022, le groupe Riou glass s’attaque maintenant au marché espagnol en rachetant le catalan Vidresif situé à proximité de Géron. Vidresif est une importante miroiterie avec un CA de l’ordre de 25 millions d’Euros. Le groupe Riou transforme chaque année plus de 100 000 tonnes de verre plat dont il produit une grande partie sur son float de Salaise sur Sanne. Il réalisera sur 2023 un CA supérieur à 260 millions d’Euros avec 1300 salariés et 26 unités de production

Bavelloni at GlassBuild AMERICA 2023

 

Bavelloni is pleased to announce its participation in the show  GlassBuild AMERICA 2023, the largest event for the glass, window, and door sectors in North America. Taking place in Atlanta (GA), from October 31 to November 2, 2023, the event will feature Bavelloni America Inc. at booth 3631.

 

On this occasion, Bavelloni will showcase some of its glass edging machinery, including the VE 500 V10 SCS mitering machine. This straight-line edger, suitable for heavy glass, can process flat edge with arrises and chamfers ranging from 0° to 45°. Notably, the SCS version of this machine incorporates an innovative spindle control system (SCS) for enhanced automation. This system ensures automatic wheel positioning, resulting in high quality finishes, minimized production waste, and optimized tool utilization. The Bavelloni VB 350 CNS bevelling machine, known for its efficiency, reliability, reduced maintenance and long lifespan will also be presented. Moreover, visitors will experience live demonstrations of the Bavelloni REV 372 SR cutting table, a very compact, accurate and fast stand-alone bench for straight and shaped cutting of monolithic glass. Also on display, a wide selection of Bavelloni diamond and polishing tooling.

 

Bavelloni’s team of experts will be on hand at our stand throughout the event to welcome guests and provide comprehensive insights into Bavelloni's diverse product portfolio.

 

To gain complimentary access to the exhibition, enter Bavelloni Customer Guest Pass Code 23GBAEXH upon your online pre-registration.

 

 

 

 

 

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Affutage des forêts diamantés pour le verre plat

La partie active d’un forêt diamanté, celle qui va permettre de percer le verre est constituée de grains de diamant. Ces grains de diamant sont noyés dans un alliage métallique qui a pour objectif de libérer peu à peu le diamant en surface du forêt diamanté de façon à pouvoir percer le verre.

En perçant le verre la partie supérieure du diamant va se briser peu à peu.

Ce liant doit s’user à la même vitesse que le diamant. S’il s’use trop vite il y a trop de diamant en surface et le forêt va s’user très rapidement et il y a un risque que le perçage se fasse avec des écailles. S’il s’use moins vite que les particules de diamant il n’y aura pas assez de grains de diamant en surface et le forêt ne percera plus le verre correctement. Dans ce dernier cas il faut affuter le forêt de façon à user le liant et refaire apparaitre des grains de diamant en surface. On utilise pour cela des pierres synthétiques, généralement en oxyde d’aluminium.

Mais le besoin d’affutage des forêts devrait être rare, du moins pour les meilleurs forêts diamantés. En effet les fournisseurs qui sont dans ce cas utilisent des liants qui s’usent à la même vitesse que le diamant et donc sans besoin d’affutage.

L’affutage est un réel problème dans le cas des perceuses automatiques.

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GEOGRAPHICAL INDICATION PIERRES MARBRIERES OF RHÔNE ALPES

SPECIFICATIONS

SUMMARY OF THE WORKING DOCUMENT

 

 

1. The name of the Geographical Indication

"Marble Stones of Rhône-Alpes"

2. The product (s) concerned

The Marbrières Stones of Rhône-Alpes are limestones formed in the Jurassic era and the Lower Cretaceous era, extracted in quarries located in a geographical area defined in point 3.

As an indication, the average values ​​of the physical and mechanical characteristics of the main Stones Marbrières of Rhône-Alpes are:

• Density value (NF EN 1936): between 2500 kg / m3 and 2810 kg / m3

• Open porosity value (NF EN 1936): between 0.3% and 3.0%;

• Flexural strength under center load (NF EN 12372): between 9.5 MPa and 23 MPa;

• Compressive strength (either NF EN 1926 or NF EN 772-1): between 139 MPa and 250 MPa;

• Wear resistance (NF EN 14157): between 18 mm and 35 mm.

 

The non-exhaustive list of different limestone materials that can claim the protection of the IG "Stones Marbrières de Rhône Alpes" is presented below:

• Chandoré Stone / Champdor

• Pierre de Chomérac

• Drom Stone / Revermont Stone / Chandolin Stone

• Grand Corent Stone / Yellow Valore

• Pierre de Hauteville

• Pierre de Labeaume

• Pierre Rocheret / Pierre-Châtel / Silver Roc

• Pierre de Romanèche / Pierre de Hautecourt

• Ruoms stone

• Saint-Baudille stone

• Pierre de Villebois / Montalieu

The geographical indication covers the following products:

at. Raw products: blocks extracted from quarries for cut stone, construction and decoration;

b. Semi-finished products: slices and products being finished;

c. Finished products, classified by family:

 New and old building (massive cut elements, thin elements, etc ...);

 Roads, urban and landscaping (Pavers of all types, slabs of all types, borders of all types, street furniture, landscape furniture, etc ...);

 Funeral (monuments and funerary articles, columbarium, etc ...);

 Any decorative furniture and real estate product (such as interior furniture etc ...).

Made from natural materials produced by extraction and processing processes except for any reconstituted and / or composite materials or products.

The finished product loses Geographical Indication at the first stage of the process outside the geographical area. Finished product means a product that will not be reworked outside the geographical area.

3. The delimitation of the geographical area or the associated determined place

The geographical area of ​​the IG Pierres Marbrières in Rhône-Alpes covers:

• For extraction operations: the departments of Isère (38) and Ain (01) and the department of Ardèche (07);

• For processing operations: all departments in the Rhône-Alpes region (01, 07, 26, 38, 42, 69, 73 and 74).

The extraction and processing operations of the products covered by the IG Pierres Marbrières de Rhône-Alpes must be carried out in this geographical area.

4. Quality, reputation, traditional know-how or other characteristics of the product concerned that can be attributed essentially to that geographical area or specific place, as well as the elements establishing the link between the product and the geographical area or associated determined place

 

The list below presents the formation dates of each of the Stones Marbrières of Rhône-Alpes:

• Hauteville: Lower Cretaceous - Valanginian - 136 to 140 Ma

• Chandoré: Lower Cretaceous - Valanginian - from 136 to 140 Ma

• Rocheret: Lower Cretaceous - Valanginian - 136 to 140 Ma

• Chomerac: Jurassic - Portlandian (Tithonian) - 145-150 Ma

• Labeaume: Jurassic - Portlandian (Tithonian) - from 145 to 150 Ma

• Ruoms: Jurassic - Portlandian (Tithonian) - from 145 to 150 Ma

• Drom: Jurassic - Portlandian (Tithonian) - from 145 to 150 Ma

• Grand-Corent: Jurassic - Kimmeridgian - from 150 to 155 Ma

• Villebois: Jurassic - Bathonian - from 168 to 166 Ma

• Saint-Baudille: Jurassic - Middle Bajocian - about 170 Ma

The totality of marble limestones of Rhone-Alps comes from marine deposits. These deposits were made in a sea of ​​tropical and shallow type. The hot temperature of the water favored the deposition of limestone (calcium carbonate). This sedimentation is both biodetitic and chemical, hence the presence of oolites. Some of these rocks then very slightly metamorphosed.

With regard to these parameters (richness in calcium carbonate, presence of oolites and a very slight metamorphism) we obtain a hard rock, compact, fairly homogeneous and "taking good polish". These petrographic characteristics are partly the definition of the ancient term "choin" which can be defined by "limestone (or stone) marbrière".

 

5. The identity of the defense and management body (ODG), its statutes, the list of initial operators it represents and the financial arrangements for their participation.

The association RHONAPI is the defense and management organization that manages the Geographical Indication "Pierres Marbrières de Rhône-Alpes".

6. Terms and periodicity of the controls carried out by the bodies mentioned in Article L. 721-9 of the Intellectual Property Code, as well as the financing methods for these controls. The terms include the product control points:

The tests to be carried out and to hold for the IG are:

• Identity tests;

• Employment skills tests;

• Additional tests for CE marking.

Paragraph supplemented by CERTIPAQ's proposal.

7. Reporting or record-keeping obligations to which operators must comply in order to enable verification of compliance with the specifications:

The reporting or record-keeping obligations that operators must meet to enable verification of compliance with the specifications are described in the following diagram:

9. Formalities of notice and exclusion of the operators in case of non-compliance with the specifications:

Paragraph supplemented by CERTIPAQ's proposal.

10. Projected funding from the GDO:

The ODG is financed mainly by operator fees.

11. Specific elements of labeling:

The products marketed under Geographical Indication "Stones Marbrières of Rhône-Alpes" will have to comprise all or part of the following information by way of labeling and / or by documentary way:

 

• "IG Stones Marbrières of Rhône-Alpes" or "Geographical Indication Marbrières Stones of Rhône-Alpes";

• The logo of the IG Pierres Marbrières of Rhône-Alpes;

The logo is in the process of reflection.

• The national logo of the PIA GIs as defined by regulation;

• the registration number of the GI;

• The authorization number of the quarry / processing unit;

• the name of the material sold;

• The name and address of the ODG;

• The name of the certification body and / or its logo.

 

12. Where applicable, the social and environmental commitments made by the operators grouped within the defense and management body: