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1、BRITISH STANDARD BS EN 13851:2003 Methods of test for hydraulic setting floor smoothing and/or levelling compounds Determination of flexural and compressive strength The European Standard EN 13851:2003 has the status of a British Standard ICS 91.100.99 ? Licensed Copy: sheffieldun sheffieldun, na, M
2、on Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13851:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 19 November 2003 BSI 19 November 2003 ISBN 0 580 42942 3 National foreword This British Standard is the official E
3、nglish language version of EN 13851:2003. The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives, 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 S
4、tandards which implement international or European publications 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.
5、This publication does not purport to include all the 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 i
6、nternational/European committee any enquiries on the interpretation, or proposals for change, and keep the 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
7、EN title page, pages 2 to 10, an inside back cover 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. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 20
8、06, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13851 November 2003 ICS 91.100.99 English version Methods of test for hydraulic setting floor smoothing and/or levelling compounds - Determination of flexural and compressive strength Mthode dessai pour les mortiers
9、de lissage et/ou dgalisation prise hydraulique - Dtermination de la rsistance la flexion et la compression Prfverfahren fr hydraulisch erhrtende Boden- Spachtelmassen - Bestimmung der Biegezug- und Druckfestigkeit This European Standard was approved by CEN on 1 September 2003. CEN members are bound
10、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 Mana
11、gement 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 Management Centre has the same status as the
12、official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMI
13、TTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13851:2003 E Licensed Copy: sheffield
14、un sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 2 Contentspage Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Principle4 5Safety 4 6Apparatus and material.5 7Standard test conditions.7 8Preparation of test specimens7 9Procedur
15、es .8 10Test report 10 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 3 Foreword This document (EN 13851:2003) has been prepared by Technical Committee CEN /TC 193, “Adhesives“, the secretariat of which is held by AENOR. T
16、his 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 May 2004, and conflicting national standards shall be withdrawn at the latest by May 2004. According to the CEN/CENELEC Internal Regulations, the nat
17、ional standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerlan
18、d and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 4 1 Scope This European Standard specifies test methods for the determination of the flexural and compressive strength of a hydraulic setting floor s
19、moothing and/or levelling compound which is referred to as “floor smoothing and/or levelling compound“. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the
20、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 incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to app
21、lies (including amendments). EN 196-1, Methods of testing cement Part 1: Determination of strength. EN 1937:1999, Test method for hydraulic setting floor smoothing and/or levelling compounds - Standard mixing procedures. ISO 554, Standard atmospheres for conditioning and/or testing - Specifications.
22、 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 1937:1999 apply. 4 Principle The test method comprises the determination of the compressive and the flexural strength of prismatic test specimens 40 mm x 40 mm x 160 mm in size. These test spec
23、imens are cast in moulds from a batch or sample of a floor smoothing and/or levelling compound which has been mixed and prepared in accordance with EN 1937. The specimens are demoulded 24 h after casting. Moulded and demoulded specimens are stored at standard conditions. At the required age, the spe
24、cimens are broken in flexure into two halves and each half tested for strength in compression. 5 Safety The users of this standard shall be familiar with normal laboratory practice. This standard does not purport to address all safety problems, if any, associated with its use. It is the responsibili
25、ty of the user to establish safety and health practices and to ensure compliance with any European and national regulatory conditions. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 5 6 Apparatus and material 6.1 Mould in
26、accordance with EN 196-1 The mould shall consist of three horizontal compartments so that three prismatic test specimens 40 mm x 40 mm in cross section and 160 mm in length can be prepared simultaneously. A typical design is shown in Figure 1. The internal dimensions and tolerances of each mould com
27、partment, based on four symmetrically-placed measure- ments, shall be as follows: - length (160,0 0,8) mm - width(40,0 0,2) mm - depth(40,1 0,1) mm. In assembling the cleaned mould ready for use, a suitable sealing material, such as butyl rubber putty, shall be used to coat the joints of the mould.
28、A thin film of mould oil shall be applied to the internal faces of the mould. To facilitate the filling of the mould a tightly fitting metal hopper with vertical walls 20 mm to 40 mm in height can be used. When viewed in plan, the hopper walls shall overlap the internal walls of the mould by not mor
29、e than 1 mm. The outer walls of the hopper shall be provided with a means of location to ensure correct positioning over the mould. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 6 Dimensions in millimetres Key 1 Striking
30、off direction with sawing motion Figure 1 Typical mould 6.2 Cover plate, of glass plastic or other impermeable material of suitable dimensions to cover the mould. 6.3 Metal straight edge in accordance with EN 196-1. 6.4 Jolting apparatus in accordance with EN 196-1 if required according to 8.1. 6.5
31、Flexural strength testing machine in accordance with EN 196-1. The testing machine for the determination of flexural strength shall be capable of applying loads up to 10 kN, with a limit deviation of 1,0 % of the recorded load in the upper four-fifths of the range being used, at a rate of loading of
32、 (50 10) N/s. The machine shall be provided with a flexure device incorporating two steel supporting rollers of (10,0 0,5) mm diameter spaced (100,0 0,5) mm apart and a third steel loading roller of the same diameter placed centrally between the other two. The length a of these rollers shall be betw
33、een 45 mm and 50 mm. The loading arrangement is shown in Figure 2. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 7 Dimensions in millimetres Figure 2 Arrangement of loading for determination of flexural strength 6.6 Compr
34、essive strength testing machine in accordance with EN 196-1 The testing machine for the determination of compressive strength shall be of suitable capacity for the test. It shall have a limit deviation of 1,0 % of the recorded load in the upper four-fifths of the range being used and it shall provid
35、e a rate of load increase of (2 400 200) N/s. It shall be fitted with an indicating device which shall be so constructed that the value indicated at failure of the specimen remains indicated after the testing machine is unloaded. This can be achieved by the use of a maximum indicator on a pressure g
36、auge, memory on digital display, or a recording system. Manually operated testing machines shall be fitted with a pacing device to facilitate the control of the load increase. 6.7 Smoothing and/or levelling compound mixed and prepared in accordance with EN 1937. 7 Standard test conditions The standa
37、rd test conditions shall be (23 2) C and (50 5) % relative humidity in accordance with ISO 554. 8 Preparation of test specimens 8.1 Moulding of test specimens A minimum of three test specimens is required for each age of test specimen. Precondition the moulds for at least 24 h in the standard test c
38、onditions. The mixture, prepared and mixed in accordance with EN 1937, is cast into the prepared mould. For spreading and striking off surplus paste from the filled mould a metal straightedge may be used, if necessary held almost vertically and moved slowly, with a transverse sawing motion once in e
39、ach direction. Smooth the surface of the specimens using the same straightedge held almost flat. Clean the perimeter of the mould. If compaction is necessary, i. e. if Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 8 the m
40、ixture does not flow sufficiently use the jolting apparatus (see 6.4) or any other mechanical method which gives good compaction. 8.2 Handling and storage before demoulding The cover plate is placed on the mould. A cover plate of glass, plastic or other impermeable material of similar size shall be
41、used. The covered mould, suitably identified, is placed without delay on a horizontal base and stored at standard test conditions. Moulds shall not be stacked. Each mould shall be removed from storage at its appropriate time for demoulding. 8.3 Demoulding of test specimens Carry out demoulding with
42、due precautions in order not to damage the test specimens. Demoulding shall be carried out normally between 20 h and 24 h after moulding. For 24 h tests demoulding shall be carried out less than 20 min before the specimens are tested. If the paste has not acquired sufficient strength at 24 h to be h
43、andled without risk of damage, demoulding may be delayed by 24 h. Delayed demoulding shall be mentioned in the test report. 8.4 Conditioning and storage of test specimens Demoulded specimens selected for testing at ages greater than 24 h are stored at standard test conditions until tested, being pla
44、ced on non-corrodible gratings and kept apart from each other so that the air has free access to all six sides of the specimens. 8.5 Age of specimens for strength tests The age of specimens is calculated from the time of filling the mould at the beginning of the test. Strength tests are performed at
45、 different ages within the following limits: -Normative:28 d 8 h -Optional:24 h 15 min 72 h 45 min 7 d 2 h 14 d 4 h 9 Procedures 9.1 Determination of flexural strength To determine the flexural strength the flexural strength testing machine and the loading arrangement (see 6.6) is used. The test spe
46、cimen is placed in the testing machine with one side face on the supporting rollers and with its longitudinal axis normal to the supports. Apply the load vertically by means of the loading roller to the opposite side face of the prism and increase it smoothly at the rate of (50 10) N/s until fractur
47、e. Keep the test specimen halves until tested in compression. 9.2 Determination of compressive strength The test specimen halves obtained in the flexural test are tested in compression on the moulded side faces over an area of 40 mm x 40 mm. When the flexural strength value is not required, the comp
48、ressive strength test shall be carried out on the two halves of the test specimen broken by suitable means which do not subject the test specimen halves to harmful stresses. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:49:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13851:2003 (E) 9
49、 The test specimen halves are tested in compression on the side faces by means of the testing machine (see 6.6). For this purpose the half test specimen is centred laterally to the plate of the machine within 0,5 mm and, longitudinally such that the end face of the test specimen overhangs the plates or auxiliary plates by about 10 mm. Apply the load and increase it smoothly at the rate of (2 400 200) N/s until fracture. Where the load increase is reg