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ISO 20182:2024

Refractory test-piece preparation — Gunning refractory panels by the pneumatic-nozzle mixing type guns

Edition date: 2024-10-01
In Force
Available languages: French, English
Summary:

This document describes the procedure for the preparation of test panels from refractory materials by gunning through pneumatic nozzle mixing type guns at ambient temperatures. The test pieces are for the determination of properties on as-gunned products prepared under either “standard conditions” (as required for quality assurance or product development) or “site conditions”. In the case of “site conditions”, the purpose of the testing is to establish the properties pertaining to a given installation or a given set of installation conditions. In this case, the panel can be obtained during the on-site installation. Parameters such as ambient temperature, gunning elevation, air pressure and curing conditions (temperature, orientation of the panel) applicable during the preparation of the panel are as near as possible to the respective parameters pertaining to the site installation.

It is also possible to simulate certain “site conditions” by gunning panels off-site, for example, in a laboratory setting. This is acceptable under this document, by agreement between interested parties.

This document does not apply to plastic gunning mixes and to those mixes that contain aggregates that are susceptible to hydration.

This document does not apply to shotcrete type mixes, which are dealt with in ISO 18886.



Le présent document spécifie le mode de préparation de panneaux d'essai en matériaux réfractaires, par gunitage au moyen d'un pistolet mélangeur pneumatique, à température ambiante. Les éprouvettes sont destinées à déterminer les propriétés des produits pour gunitage tel que préparés dans des « conditions normalisées » (comme requis pour l’assurance de la qualité ou le développement de produits) ou dans des « conditions de site ». Dans le cas des « conditions de site », l’objectif de l’essai est d’établir les propriétés relatives à une installation donnée ou à un ensemble donné de conditions d'installation. Dans ce cas le panneau peut être obtenu pendant l’installation sur site. Des paramètres tels que la température ambiante, l’élévation de gunitage, la pression de l’air et les conditions de prise (température, orientation du panneau) appliqués lors de la préparation du panneau sont aussi proches que possible des mêmes paramètres relatifs à l'installation sur site.

Il est également possible de simuler certaines « conditions de site » en gunitant des panneaux hors site, par exemple en laboratoire. Cette méthode est autorisée par le présent document, après accord entre les parties intéressées.

Le présent document n'est pas applicable aux mélanges plastiques gunitables et peut ne pas être applicable aux mélanges qui contiennent des granulats susceptibles de s'hydrater.

Elle ne s'applique pas non plus aux mélanges de type béton projeté. Ces questions sont traitées dans la norme ISO 1886.
ICS: 81.080-Refractories
CTN: ISO/TC 33 - 47812

Standards Cancellations

Anula a ISO 20182:2008

International Equivalence

Identic UNE-EN ISO 20182:2024

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