1、DEUTSCHE NORM No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).May 2005DIN EN 772-9English price group 6 www.din.de www
2、.beuth.de08.05 9648368Document comprises 6 pages.Methods of test for masonry unitsPart 9: Determination of volume and percentage of voids and net volume of clay and calcium silicate masonry units by sand lling(includes Amendment A1:2005)English version of DIN EN 772-9:1998 + A1:2005Prfverfahren fr M
3、auersteine Teil 9: Bestimmung des Loch- und Nettovolumens sowie des prozentua-len Lochanteils von Mauerziegeln und Kalksandsteinen mittels Sandfllung (enthlt nderung A1:2005)A comma is used as the decimal marker.National forewordThis standard has been prepared by CEN/TC 125 Masonry (Secretariat: Uni
4、ted Kingdom).The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Technical Committee 06.01.00 Mauerwerksbau.This European Standard is part of a series of standards specifying methods used to check compliance o
5、f masonry units with the requirements specied in the relevant product standard.AmendmentsThis standard differs from the October 1998 edition in that it has been revised in form and substance.Previous editionDIN EN 772-9: 1998-10.ICS 91.100.15 Supersedes October 1998 edition.!,cvg“English versionICS
6、91.100.30 Supersedes EN 772-9:1998.Management Centre: 36, rue de Stassart, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung 2005. CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national members.R
7、ef. No. EN 772-9:1998 + A1:2005 EMethods of test for masonry unitsPart 9: Determination of volume and percentage of voids and net volume of clay and calcium silicate masonry units by sand lling(includes Amendment A1:2005)Mthodes dessai des lments de maonnerie Partie 9: Dtermination du volume et du p
8、ourcentage de vides et du volume net absolu des lments de maonnerie en terre cuite et en silico-calcaire par remplissage de sable (amendement A1:2005 inclus)Prfverfahren fr Mauersteine Teil 9: Bestimmung des Loch- und Netto-volumens sowie des prozentualen Lochanteils von Mauerziegeln und Kalksandste
9、inen mittels Sandfllung (enthlt nderung A1:2005)This European Standard was approved by CEN on 1998-07-02 and Amendment A1 on 2004-12-29.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
10、standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member.The European Standards exist in three ofcial versions (English, French, German). A version in any other lang
11、uage made by translation under the responsibility of a CEN member into its own language and notied to the Management Centre has the same status as the ofcial versions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Ger
12、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.EN 772-9August 1998+ A1February 2005Page 2 EN 772-9:1998 + A1:2005ContentsPageForeword to EN 772-9:1
13、998 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Foreword to EN 772-9:1998/A1:2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 N
14、ormative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15、. . . . . . . . . . . . . . . . 35 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Preparation of specimens . . . . . .
16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Calculation and expression of results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410 Evaluation of result
17、s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411 Test report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Foreword to EN 772-9:1998This European Standard has been prepared by Technical Committee CEN/TC 12
18、5 Masonry, 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, by February 1999 at the latest, and conicting national standards shall be withdrawn by September 2000 at the lates
19、t.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing countries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lux-embourg, the Netherl
20、ands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.Foreword to EN 772-9:1998/A1:2005This amendment to EN 772-9:1998 has been prepared by Technical Committee CEN/TC 125 Masonry, the Secretariat of which is held by BSI.This amendment shall be given the status of a national stan
21、dard, either by publication of an identical text or by endorsement, and conicting national standards withdrawn, by August 2005 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing countries are bound to implement this European
22、Standard:Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slo-vakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.Page 3
23、 EN 772-9:1998 + A1:20051 ScopeThis European Standard specifies a method of determining the volume and percentage of voids and net volume of clay and calcium silicate masonry units containing cells, frogs and holes. 2 Normative referencesThis European Standard incorporates by dated and undated refer
24、ence, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorpora
25、ted in it by amendment or revision. For undated reference the latest edition of the publication referred to applies. EN 771-1 Specification for masonry units Part 1: Clay masonry units EN 771-2 Specification for masonry units Part 2: Calcium silicate masonry units EN 771-4 Specification for masonry
26、units Part 4: Autoclaved aerated concrete masonry units EN 772-16 Methods of test for masonry units Part 16: Determination of dimensions 3 PrincipleThe principle of this test is to measure the volume of voids in a masonry unit by measuring the volume of sand required to fill them. 4 SymbolsVn,uis th
27、e net volume of each unit , (104mm3)Vs,uis the volume of voids , (104mm3)Vg,uis the gross volume of each unit , (104mm3)5 MaterialsDry graded sand with a grain size above 0,5 mm and passing a 1 mm test sieve (6.4).6 Apparatus6.1 A thin sheet of foam rubber or other resilient material. 6.2 A rigid pl
28、ate slightly larger than the unit. 6.3 A glass measuring cylinder graduated in ml. 6.4 Two test sieves, one with 0,5 mm apertures and one with 1 mm apertures. Page 4 EN 772-9:1998 + A1:20057 Preparation of specimens7.1 SamplingThe method of sampling shall be in accordance with the relevant part of E
29、N 771. The minimum number of specimens shall be six, but a larger minimum number may be specified in the product specification, in which case that larger number shall be used. 7.2 Surface treatmentRemove any superfluous material adhering to the unit as a result of the manufacturing process before co
30、mmencing the test. 8 Test procedure8.1 Volume of voidsPlace the air-dry unit on the thin sheet of foam rubber (6.1) or other resilient material with the open end of voids uppermost. When the unit has voids or recesses in the ends that need to be measured,close the ends with the rigid plate (6.2).8.2
31、 Sand filling procedureFill the glass measuring cylinder (6.3) accurately with the dry sand and record the volume. Fill the voids with the sand by pouring from the cylinder, refilling it if required. Keep the cylinder lip as close as possible to the top of the void, pour steadily and then strike off
32、 level. Return to the cylinder any sand struck off and note the total volume of sand (Vs,u) used to the nearest 104mm3.9 Calculation and expression of resultsCalculate the gross volume of the unit (Vg,u)by multiplying the length (lu) by the height (hu) and the width (wu) of the unit measured in acco
33、rdance with EN 772-16.V l w hg u u u u, .(1) Calculate the net volume (Vn,u) of each unit to the nearest 104mm3, if required. V V Vn u g u s u, , , .(2) Calculate the % of voids to the nearest 1% asVVs ug u,100 .(3) 10 Evaluation of resultsCalculate the mean value of the percentage of voids to the n
34、earest 1%. Page 5 EN 772-9:1998 + A1:200511 Test reportThe test report shall contain the following information: a) the number, title and date of issue of this European Standard, b) a description of the masonry unit to the standard, part of EN 771, c) the method of sampling and by which organization,
35、 d) the date of delivery of the specimens, e) the date of testing, f) the number of specimens in sample, g) the volume of voids (Vs,u) in each unit to the nearest 104mm3,h) the mean volume of voids to the nearest 104mm3,i) the net volume of each unit (Vn,u) to the nearest 104mm3, if required, j) the individual and mean values of percentage of voids to the nearest 1 %, k) remarks, if any.
