SIST EN ISO 1927-4:2013

SLOVENSKI STANDARD
SIST EN ISO 1927-4:2013
01-december-2013
1DGRPHãþD
SIST EN 1402-4:2004
Neoblikovani (monolitni) ognjevzdržni izdelki - 4. del: Ugotavljanje konsistence
gostih litih betonov (ISO 1927-4:2012)
Monolithic (unshaped) refractory products - Part 4: Determination of consistency of
castables (ISO 1927-4:2012)
Ungeformte (monolithische) feuerfeste Erzeugnisse - Teil 4: Bestimmung der Konsistenz
von Feuerbetonen (ISO 1927-4:2012)
Produits réfractaires monolithiques (non façonnés) - Partie 4: Détermination de la
consistance des bétons (ISO 1927-4:2012)
Ta slovenski standard je istoveten z: EN ISO 1927-4:2012
ICS:
81.080 Ognjevzdržni materiali Refractories
SIST EN ISO 1927-4:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 1927-4:2013

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SIST EN ISO 1927-4:2013


EUROPEAN STANDARD
EN ISO 1927-4

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2012
ICS 81.080 Supersedes EN 1402-4:2003
English Version
Monolithic (unshaped) refractory products - Part 4:
Determination of consistency of castables (ISO 1927-4:2012)
Produits réfractaires monolithiques (non façonnés) - Partie Ungeformte (monolithische) feuerfeste Erzeugnisse - Teil 4:
4: Détermination de la consistance des bétons (ISO 1927- Bestimmung der Konsistenz von Feuerbetonen (ISO 1927-
4:2012) 4:2012)
This European Standard was approved by CEN on 30 November 2012.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1927-4:2012: E
worldwide for CEN national Members.

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SIST EN ISO 1927-4:2013
EN ISO 1927-4:2012 (E)
Contents Page
Foreword .3
2

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SIST EN ISO 1927-4:2013
EN ISO 1927-4:2012 (E)
Foreword
This document (EN ISO 1927-4:2012) has been prepared by Technical Committee ISO/TC 33 "Refractories"
in collaboration with Technical Committee CEN/TC 187 “Refractory products and materials” the secretariat of
which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at
the latest by June 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 1402-4:2003.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 1927-4:2012 has been approved by CEN as a EN ISO 1927-4:2012 without any modification.

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SIST EN ISO 1927-4:2013

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SIST EN ISO 1927-4:2013
INTERNATIONAL ISO
STANDARD 1927-4
First edition
2012-12-01
Monolithic (unshaped) refractory
products —
Part 4:
Determination of consistency of castables
Produits réfractaires monolithiques (non façonnés) —
Partie 4: Détermination de la consistance des bétons
Reference number
ISO 1927-4:2012(E)
©
ISO 2012

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SIST EN ISO 1927-4:2013
ISO 1927-4:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

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SIST EN ISO 1927-4:2013
ISO 1927-4:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 2
5 Procedure . 4
5.1 Determination of the consistency of insulating castables for rodding and tamping . 4
5.2 Determination of the consistency of castables by tap flow table method . 5
5.3 Determination of the consistency of dense vibrating castables by cone vibration method . 5
5.4 Determination of the consistency of self-flowing castables . 6
6 Test report . 7
© ISO 2012 – All rights reserved iii

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SIST EN ISO 1927-4:2013
ISO 1927-4:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 1927-4 was prepared by Technical Committee ISO/TC 33, Refractories.
ISO 1927 consists of the following parts, under the general title Monolithic (unshaped) refractory products:
— Part 1: Introduction and classification
— Part 2: Sampling for testing
— Part 3: Characterization as received
— Part 4: Determination of consistency of castables
— Part 5: Preparation and treatment of test pieces
— Part 6: Measurement of physical properties
— Part 7: Tests on pre-formed shapes
— Part 8: Determination of complementary properties
iv © ISO 2012 – All rights reserved

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SIST EN ISO 1927-4:2013
INTERNATIONAL STANDARD ISO 1927-4:2012(E)
Monolithic (unshaped) refractory products —
Part 4:
Determination of consistency of castables
1 Scope
This part of ISO 1927 describes methods for the determination and measurement of the consistency of dense
and insulating castables as defined in ISO 1927-1. It is applicable to all types of dense regular castables, dense
deflocculated castables and insulating castables to determine the liquid addition necessary for preparing test
pieces according to ISO 1927-5.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 1927-1, Monolithic (unshaped) refractory products — Part 1: Introduction and classification
ISO 1927-5:2012, Monolithic (unshaped) refractory products — Part 5: Preparation and treatment of test pieces
3 Principle
The amount of water used in a castable mix for preparing test pieces has a significant influence on the test
results. Excess water can reduce strength, increase shrinkage, and can cause sedimentation. Insufficient
moisture can give voids due to poor compaction, with subsequent lower density and strength.
This part of ISO 1927 describes three different methods for determining the consistency according to the
type of material:
a) determination of the consistency of insulating castables containing significant amounts of light-weight
aggregates such as vermiculite or perlite which would be destroyed by intensive mixing; such products are
normally installed by pouring, rodding, tamping;
b) determination of the consistency of all types of vibratable castables;
c) determination of the consistency of self-flowing castables.
To obtain reproducible results, the following factors are closely controlled:
— wet mixing time;
— batch size, which is chosen for the required number of determinations (e.g. if determination of working time
is required), and is also related to mixer pan size or bowl;
— mixer pan size adapted to batch weight to have at least 50 % and a maximum of 75 % volume loading by
the dry batch;
— temperature (of the water, castable and mix and ambient temperature), of 18 °C to 22 °C for consistency
and working time determination;
— quantity of water addition used in the test which is rapidly affected when the dry volume loading of the
mixer pan drops below 50 % of the total dry capacity, due to the increased metal surface to be wetted;
© ISO 2012 – All rights reserved 1

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SIST EN ISO 1927-4:2013
ISO 1927-4:2012(E)
— water quality.
4 Apparatus
4.1 Mixer, conforming to the requirements of 4.2 of ISO 1927-5:2012.
4.2 Vibrating table, conforming to the requirements of 4.3 of ISO 1927-5:2012.
4.3 Trowel, conforming to the requirements of 4.7 of ISO 1927-5:2012.
4.4 Metal moulds (see Figures 1 and 2), comprising two truncated cones, with a diameter of 100 mm at the
bottom, and 70 mm at the top.
One cone shall be 50 mm in height and the other shall be 80 mm in height.
The moulds should preferably be made from stainless steel with chromium-plated inside surfaces.
Dimensions in millimetres
Figure 1 — Cone 1, of height 50 mm
2 © ISO 2012 – All rights reserved

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SIST EN ISO 1927-4:2013
ISO 1927-4:2012(E)
Dimensions in millimetres
Figure 2 — Cone 2, of height 80 mm
4.5 Metal bowl, suitable for manual mixing of a test batch of correct size.
NOTE For example a diameter of 450 mm and a
...