1、BRITISH STANDARD BS ISO 13765-2:2004 Refractory mortars Part 2: Determination of consistency using the reciprocating flow table methodICS 81.080 BS ISO 13765-2:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 13 February 2006 BSI 13 Febru
2、ary 2006 ISBN 0 580 47703 7 National foreword This British Standard reproduces verbatim ISO 13765-2:2004 and implements it as the UK national standard. Together with BS ISO 13765-1, BS ISO 13765-3, BS ISO 13765-4, BS ISO 13765-5 and BS ISO 13765-6, it supersedes BS 1902-11:1991, which is withdrawn.
3、The UK participation in its preparation was entrusted to Technical Committee RPI/1, Refractories, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international p
4、ublications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the
5、 necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the
6、 interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1
7、to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsINTERNATIONAL STANDARD ISO 13765-2 First edition 2004-06-01 Reference number ISO 13765-2:2004(E) Refractory mortars Part 2
8、: Determination of consistency using the reciprocating flow table method Mortiers rfractaires Partie 2: Dtermination de la consistance par la mthode de la table dcoulement mouvement alternatifBS ISO 13765-2:2004ii iii Foreword ISO (the International Organization for Standardization) is a worldwide f
9、ederation 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 co
10、mmittee. 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 accor
11、dance 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 requir
12、es 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 13765-2 was prepared by Technic
13、al Committee ISO/TC 33, Refractories. ISO 13765 consists of the following parts, under the general title Refractory mortars: Part 1: Determination of consistency using the penetrating cone method Part 2: Determination of consistency using the reciprocating flow table method Part 3: Determination of
14、joint stability Part 4: Determination of flexural bonding strength Part 5: Determination of grain size distribution (sieve analysis) Part 6: Determination of moisture content of ready-mixed mortars BS ISO 13765-2:2004blank1 Refractory mortars Part 2: Determination of consistency using the reciprocat
15、ing flow table method 1S c o p e This part of ISO 13765 describes a method for the determination of the consistency of refractory mortars using a reciprocating flow table. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refe
16、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 8656-1, Refractory products Sampling of raw materials and unshaped products Part 1: Sampling scheme 3 Terms and definitions For the purposes of this d
17、ocument, the terms and definitions given in ISO 13765-1 apply. 4 Principle The consistency of a refractory mortar is assessed by measuring the increase in diameter of a sample when subjected to up and down mechanical agitation using a reciprocating flow table. 5 Apparatus 5.1 Flow table and mould, a
18、s shown in Figure 1. 5.2 Mixer, consisting of: 5.2.1 Stainless steel bowl, with a capacity of about 5 litres and of the general shape and size shown in Figure 2, and provided with means by which it can be fixed securely to the mixer frame during mixing and by which the height of the bowl in relation
19、 to the blade and, to some extent, the gap between blade and bowl can be finely adjusted and fixed. BS ISO 13765-2:20042 Dimensions in millimetres Key 1 lines to be scribed on face of table 2 table (brass or bronze) 3 conical mould 4 directions of movement of the flow table 5 table to be fixed to sh
20、aft and total mass to be 6 handle, or alternatively, motor drive through flexible shaft 7d r o p 8 sides machined to give a drop of 9 fixing holes 10 hardened contact faces 11 view of underside of table Figure 1 Flow table and mould 4kg 0,5 kg 12,7 mm 0,1 mm BS ISO 13765-2:20043 5.2.2 Metal blade, o
21、f the general shape, size and tolerances shown in Figure 2, rotating about its own axis as it is driven in a planetary movement around the axis of the bowl by an electric motor at controlled rotational frequencies. The two directions of rotation shall be opposite and the ratio between the two freque
22、ncies shall not be a whole number. Where more than one mixer is used, blades and bowls shall form sets which are always used together. The gap between blade and bowl shown in Figure 2 shall be checked every month. NOTE The gap indicated in Figure 2 ( ) refers to the situation when the blade in the e
23、mpty bowl is brought as close as possible to the wall. Simple tolerance gauges (feeler gauges) are useful where direct measurement is difficult. 5.3 Thermometer. 5.4 Palette knife. 5.5 Measuring cylinder. 6 Sampling For dry mortar, sample the mortar in accordance with ISO 8656-1 or as agreed between
24、 parties. Reduce the sample to by quartering or with a riffle sampler. Dimensions in millimetres Key 1b o w l 2b l a d e Figure 2 Mixer blade and bowl 3mm1mm 5kg BS ISO 13765-2:20044 Sample ready-mixed mortars by emptying the entire contents of the container in which the mortar is supplied into anot
25、her container of larger capacity and mixing thoroughly. It is important that any supernatant liquid is not discarded. Ensure that a representative sample of the wet mixture is obtained. 7 Procedure Carry out the determination in triplicate. If the table has not been used for or more, operate for 10
26、revolutions before use. Wipe the flow table top until clean and dry and place the clean dry mould at the centre. For dry mortars, place the mortar in the mixer and add water (or the specified mixing liquid) in accordance with the manufacturers instructions and mix thoroughly. Note the quantity of li
27、quid added. Allow the mixed mortar to stand for , unless any specific instructions are given by the manufacturer in which case these shall be followed. Ready-mixed mortar shall be tested in “as received” state. Measure the temperature of the mixed mortar to the nearest . Fill the mould uniformly wit
28、h the mortar. Using a palette knife, strike off the mortar surface plane and level with the top of the mould. Wipe the surrounding table top clean and dry, being especially careful to remove any water from around the edge of the mould. Lift the mould away vertically. Remove any material left in the
29、mould with a knife and place this on top of the material on the table. Operate the flow table 25 times in about . Measure the average diameter of the mortar to the nearest millimetre in two directions at right angles. 8 Calculation For each of the three determinations, calculate the consistency as t
30、he flow index, , in percent, using the equation: where is the mean diameter of the mortar after operating the flow table as described in Clause 7; is the internal base diameter of the mould. Report the consistency of the mortar as the mean value of the three flow index results to the nearest . 9 Tes
31、t report The report shall include the following information: a) all information necessary for identification of the material tested, including a description of the material, manufacturer, type, brand, batch number, etc.; b) a reference to this part of ISO 13765 (ISO 13765-2); c) the name of the test
32、ing establishment; d) in the case of a dry mortar, the percentage of water (or specified liquid) added; e) the results of the test, i.e. the flow index to the nearest , including the results of the individual determinations and their mean, calculated as specified in Clause 8; f) the ambient temperat
33、ure at which the test was conducted; g) the temperature of the mixed mortar; h) any deviations from the procedure specified; 24 h 15 min 1 C 15 s F F = DD o D o 100 D D o 1% 1% BS ISO 13765-2:20045 i) any unusual features (anomalies) observed during the test; j) the date of the test. BS ISO 13765-2:
34、2004BS ISO 13765-2:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Rev
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