1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58ICS 81.080Refractory mortars Part 2: Determination of consistency using the reciprocating flow tabl
2、e methodBRITISH STANDARDBS ISO 13765-2:2004BS ISO 13765-2:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee on 13 February 2006 BSI 13 February 2006ISBN 0 580 47703 7Cross-referencesThe British Standards which implement international publicati
3、ons 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 necessar
4、y 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.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page
5、, pages 1 to 5 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on request to its secretary. present to the r
6、esponsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard reproduces verbatim ISO 13765-2:2004
7、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ISO 13765-1, BS ISO 13765-3, BS ISO 13765-4, BS ISO 13765-5 and BS ISO 13765-6, it supersedes BS 1902-11:1991, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee RPI/1, Refractories, which ha
8、s the responsibility to: aid enquirers to understand the text;INTERNATIONALSTANDARDISO13765-2First edition2004-06-01Reference numberISO 13765-2:2004(E)Refractory mortars Part 2:Determination of consistency using the reciprocating flow table methodMortiers rfractaires Partie 2: Dtermination de la con
9、sistance par la mthode de la table dcoulement mouvement alternatifBS ISO 13765-2:2004iiiiiForewordISO (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
10、through ISOtechnical committees. Each member body interested in a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental andnon-governmental, in liaison with ISO, also take part in the work. ISO collabo
11、rates closely with the InternationalElectrotechnical 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 Standard
12、s. Draft International Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as anInternational 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 d
13、ocument may be the subject of patentrights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 13765-2 was prepared by Technical Committee ISO/TC 33, Refractories.ISO 13765 consists of the following parts, under the general title Refractory mortars: Part 1: Determina
14、tion of consistency using the penetrating cone method Part 2: Determination of consistency using the reciprocating flow table method Part 3: Determination of joint stability Part 4: Determination of flexural bonding strength Part 5: Determination of grain size distribution (sieve analysis) Part 6: D
15、etermination of moisture content of ready-mixed mortarsBS ISO 13765-2:2004blank1Refractory mortars Part 2:Determination of consistency using the reciprocating flow table method1ScopeThis part of ISO 13765 describes a method for the determination of the consistency of refractory mortars usinga recipr
16、ocating flow table.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For datedreferences, only the edition cited applies. For undated references, the latest edition of the referenced document(including any amendments) applies.ISO 8656-1,
17、 Refractory products Sampling of raw materials and unshaped products Part 1: Samplingscheme3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 13765-1 apply.4 PrincipleThe consistency of a refractory mortar is assessed by measuring the increase in diamete
18、r of a sample whensubjected to up and down mechanical agitation using a reciprocating flow table.5 Apparatus5.1 Flow table and mould, as 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 inFigure 2, and pr
19、ovided with means by which it can be fixed securely to the mixer frame during mixing and bywhich the height of the bowl in relation to the blade and, to some extent, the gap between blade and bowl canbe finely adjusted and fixed.BS ISO 13765-2:20042Dimensions in millimetresKey1 lines to be scribed o
20、n face of table2 table (brass or bronze)3 conical mould4 directions of movement of the flow table5 table to be fixed to shaft and total mass to be 6 handle, or alternatively, motor drive through flexible shaft7drop8 sides machined to give a drop of 9 fixing holes10 hardened contact faces11 view of u
21、nderside of tableFigure 1 Flow table and mould4kg 0,5 kg12,7 mm 0,1 mmBS ISO 13765-2:200435.2.2 Metal blade, of the general shape, size and tolerances shown in Figure 2, rotating about its own axis asit is driven in a planetary movement around the axis of the bowl by an electric motor at controlled
22、rotationalfrequencies.The two directions of rotation shall be opposite and the ratio between the two frequencies shall not be a wholenumber. 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 ch
23、ecked every month.NOTE The gap indicated in Figure 2 ( ) refers to the situation when the blade in the empty bowl is brought asclose 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 cylin
24、der.6 SamplingFor dry mortar, sample the mortar in accordance with ISO 8656-1 or as agreed between parties. Reduce thesample to by quartering or with a riffle sampler.Dimensions in millimetresKey1bowl2bladeFigure 2 Mixer blade and bowl3mm 1mm5kgBS ISO 13765-2:20044Sample ready-mixed mortars by empty
25、ing the entire contents of the container in which the mortar is suppliedinto another container of larger capacity and mixing thoroughly. It is important that any supernatant liquid is notdiscarded. Ensure that a representative sample of the wet mixture is obtained.7 ProcedureCarry out the determinat
26、ion in triplicate.If the table has not been used for or more, operate for 10 revolutions before use. Wipe the flow table topuntil 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
27、the manufacturers instructions and mix thoroughly. Note the quantity of liquid added. Allow the mixed mortar tostand for , unless any specific instructions are given by the manufacturer in which case these shall befollowed. Ready-mixed mortar shall be tested in “as received” state.Measure the temper
28、ature of the mixed mortar to the nearest .Fill the mould uniformly with the mortar. Using a palette knife, strike off the mortar surface plane and level withthe top of the mould. Wipe the surrounding table top clean and dry, being especially careful to remove any waterfrom around the edge of the mou
29、ld. Lift the mould away vertically. Remove any material left in the mould with aknife and place this on top of the material on the table. Operate the flow table 25 times in about . Measurethe average diameter of the mortar to the nearest millimetre in two directions at right angles.8 CalculationFor
30、each of the three determinations, calculate the consistency as the flow index, , in percent, using theequation:whereis 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 v
31、alue of the three flow index results to the nearest .9 Test reportThe 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 pa
32、rt of ISO 13765 (ISO 13765-2);c) the name of the testing 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 individualdeterminations and their mean, calculated
33、 as specified in Clause 8;f) the ambient temperature at which the test was conducted;g) the temperature of the mixed mortar;h) any deviations from the procedure specified;24 h15 min1C15 sFF =DDoDo 100DDo1%1%BS ISO 13765-2:20045i) any unusual features (anomalies) observed during the test;j) the date
34、of the test.BS ISO 13765-2:2004BS ISO BSI389 Chiswick High RoadLondonW4 4AL13765-2:2004BSI British Standards InstitutionBSI 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
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