DIN EN 1015-11-2007 Methods of test for mortar for masonry - Part 11 Determination of flexural and compressive strength of hardened mortar(includes Amendment A1 2006) Englisg versi.pdf

1、May 2007DEUTSCHE NORM English price group 8No part of this standard may be reproduced without 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).ICS 91.100.10!,xb4“9856317www.d

2、in.deDDIN EN 1015-11Methods of test for mortar for masonry Part 11: Determination of flexural and compressive strength of hardenedmortar (includes Amendment A1:2006)English version of DIN EN 1015-11:2007-05Prfverfahren fr Mrtel fr Mauerwerk Teil 11: Bestimmung der Biegezug- und Druckfestigkeit von F

3、estmrtel (enthlt nderungA1:2006)Englische Fassung DIN EN 1015-11:2007-05SupersedesDIN EN 1015-11:1999-10www.beuth.deDocument comprises 15 pages 08.07DIN EN 1015-11:2007-05 2 National foreword This standard has been prepared by CEN/TC 125 “Masonry” (Secretariat: BSI, United Kingdom). The responsible

4、German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Technical Committees NA 005-06-01 AA Mauerwerksbau and NA 005-06-04 AA Prfverfahren. This European Standard is part of a series of standards specifying methods used to check

5、 compliance of mortar for masonry with the requirements specified in the relevant product standard. Amendment A1:2006 has been integrated in this standard and is marked by a vertical line in the left margin. The DIN Standards corresponding to the European/International Standards referred to in claus

6、e 2 of the EN are as follows: EN ISO 6507-1 DIN EN ISO 6507-1 ISO 468 (withdrawn) DIN EN ISO 4287 Amendments This standard differs from DIN EN 1015-11:1999-10 as follows: a) In clause 2, the explanatory text has been amended. b) All occurrences of “pr” preceding EN references have been deleted throu

7、ghout the document. c) The former Figure 2 has been changed to Figure 1 and put into 8.1. d) 9.2.2 has been amended. e) In Annex A, the former Figure 1 has been changed to Figure A.1. f) A new Annex B has been added. Previous editions DIN EN 1015-11: 1999-10 National Annex NA (informative) Bibliogra

8、phy DIN EN ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters DIN EN ISO 6507-1, Metallic materials Vickers hardness test Part 1: Test method EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1015-11 August 1999 +A1

9、 December 2006 ICS 91.100.10 English version Methods of test for mortar for masonry Part 11: Determination of flexural and compressive strength of hardened mortar Mthodes dessai des mortiers pour maonnerie Partie 11: Dtermination de la rsistance la flexion et la compression du mortier durci Prfverfa

10、hren fr Mrtel fr Mauerwerk Teil 11: Bestimmung der Biegezug- und Druckfestigkeit von Festmrtel EN 1015-11:1999 was approved by CEN on 1999-07-08 and Amendment A1 on 2006-10-26. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Eu

11、ropean 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 Management Centre or to any CEN member. The European Standards exist in three official versions (English,

12、 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 official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, the Czec

13、h Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION C

14、OMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1015-11:1999 + A1:2006 EEN 1015-11:1999 + A1:2006 (E) 2 Content

15、s Page Foreword to EN 1015-11:19993 Foreword to EN 1015-11:1999/A1:2006.3 1 Scope 3 2 Normative references 3 3 Principle4 4 Definitions and symbols .4 5 Apparatus .4 6 Sampling.5 7 Preparation and storage of test specimens5 8 Determination of flexural strength.7 9 Determination of compressive streng

16、th9 10 Test report . 10 Annex A (normative) Description of metal moulds for specimen preparation 11 Annex B (informative) Suggested loading rates for different classes of masonry and rendering mortars. 13 EN 1015-11:1999 + A1:2006 (E) 3 Foreword to EN 1015-11:1999 This European Standard has been pre

17、pared by Technical Committee CEN/TC 125 “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, at the latest by February 2000, and conflicting national standards shall

18、be withdrawn at the latest by December 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland

19、, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Foreword to EN 1015-11:1999/A1:2006 This document (EN 1015-11:1999/A1:2006) has been prepared by Technical Committee CEN/TC 125 “Masonry”, the secretariat of which is held by BSI. This Amendment to

20、 the European Standard EN 1015-11:1999 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. According to the CEN/CENELEC Internal R

21、egulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands

22、, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 1 Scope This European Standard specifies a method for determining the flexural and compressive strength of moulded mortar specimens. 2 Normative references The following referenced documents are i

23、ndispensable 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. EN 998-1, Specification for mortar for masonry Part 1: Rendering and plastering mortar wi

24、th inorganic binding agents EN 998-2, Specification for mortar for masonry Part 2: Masonry mortar EN 1015-2, Methods of test for mortar for masonry Part 2: Bulk sampling of mortars and preparation of test mortars EN 1015-3, Methods of test for mortar for masonry Part 3: Determination of consistence

25、of fresh mortar (by flow table) EN 1015-11:1999 + A1:2006 (E) 4 ISO 468, Surface roughness Parameters, their values and general rules for specifying requirements EN ISO 6507-1, Metallic materials Vickers hardness test Part 1: Test method 3 Principle The flexural strength of mortar is determined by t

26、hree point loading of hardened moulded mortar prism specimens to failure. The compressive strength of the mortar is determined on the two parts resulting from the flexural strength test. Where the flexural strength is not required, the parts for compressive strength testing can be produced from the

27、prisms in any way which does not lead to these parts being damaged. 4 Definitions and symbols 4.1 Definitions air-lime1): limes mainly consisting of calcium oxide or hydroxide which slowly harden in air by reacting with atmospheric carbon dioxide. Generally they do not harden under water as they hav

28、e no hydraulic properties. 4.2 Symbols F is the maximum load applied to the specimen, in Newtons (N). l is the distance between the axes of the support rollers, in millimetres (mm). b is the width of specimen in millimetres (mm). d is the depth of the specimen in millimetres (mm). 5 Apparatus 5.1 Me

29、tal moulds consisting of an open frame of removable walls forming three compartments when assembled (see Figure 1 for typical design and Annex A for a detailed description). 5.2 A tamper consisting of a rigid, non-absorptive rod of square cross-section, each side of which is 12 mm 1 mm. The tamping

30、face is flat and at right angles to the length of the tamper. The mass of the tamper is 50 g 1 g. 5.3 Storage chambers capable of maintaining a temperature of 20 C 2 C and a relative humidity of 95 % 5 % or 65 % 5 %. 5.4 A clamp enabling the assembled mould frame to be kept together at right angles.

31、 5.5 White cotton gauze, four sheets each with a size of approximately 150 mm 175 mm. 5.6 Absorbent filter paper with a specific mass of 200 g/m2 20 g/m2and water absorption capacity of 160 g/m2 20 g/m2; twelve sheets each with a size of approximately 150 mm 175 mm. 5.7 Polyethylene bags capable of

32、containing the steel moulds. 5.8 Two glass plates of sufficient area to cover the steel mould. 1) An English translation of a term used in most European countries. EN 1015-11:1999 + A1:2006 (E) 5 5.9 A palette knife. 5.10 A grid with webs of triangular section providing point contact support for sto

33、ring and curing the specimens. 5.11 A trowel. Additional apparatus are described in 8.1 and 9.1. 6 Sampling The fresh mortar for this test shall have a minimum volume of 1,5 l or at least 1,5 times the quantity needed to perform the test, whichever is the greater, and shall be obtained either by red

34、uction of the bulk test sample (see EN 1015-2) using a sample divider or by quartering, or by preparation from dry constituents and water in the laboratory. The flow value of the mortar in the bulk test sample shall be determined in accordance with EN 1015-3 and reported. Laboratory mixed samples sh

35、all be before testing be brought to a defined flow value as specified in EN 1015-2. Ready to use mortars (factory-made wet mortars which are retarded), and pre-batched air-lime/sand wet mortars when not gauged with hydraulic binders, shall be tested within their specified workable life. The length o

36、f mixing period shall be measured from the moment all constituents are introduced into the mixer. Before testing, the batch shall be gently stirred by hand using a trowel or palette knife in 5 s to 10 s to counteract any false setting etc., but without any additional mixing of the batch. Any deviati

37、on from the mixing procedure shall be noted. 7 Preparation and storage of test specimens 7.1 General The test specimens shall be prisms 160 mm 40 mm 40 mm. Three specimens shall be provided. For the compressive strength test, break the prisms into two halves to provide six half prisms. 7.2 Preparati

38、on 7.2.1 General Prepare mortars based on hydraulic binders (retarded or not retarded), and air-lime/cement mortars with mass of air-lime not exceeding 50 % of the total binder mass, in accordance with 7.2.2. Prepare mortars based on air-lime, and air-lime/cement mortars with cement mass not exceedi

39、ng 50 % of the total binder mass, in accordance with 7.2.3. Preparation and storage conditions are given in Table 1. Prepare three specimens for testing at an age of 28 days, or more if retarding agents are incorporated in the mortar, unless otherwise specified. Clean the moulds and lubricate the in

40、ternal faces of the assembled moulds with a thin layer of mineral oil to prevent adhesion of the mortar. EN 1015-11:1999 + A1:2006 (E) 6 7.2.2 Mortars with hydraulic binders, and air-lime/cement mortars with mass of air-lime not exceeding 50 % of the total binder mass Fill the mould with mortar in t

41、wo approximately equal layers, each layer being compacted by 25 strokes of the tamper. Skim off the excess mortar with a palette knife, leaving the mortar surface plane and level with the top of the mould. Then store the mould as described in 7.3. 7.2.3 Mortars based on air-lime, and air-lime/cement

42、 mortars with cement mass not exceeding 50 % of the total binder mass Place the assembled mould frame, clamped together at right angles, on a glass plate on which two layers of dry white cotton gauze have been placed. Fill the mould with mortar in two approximately equal layers, each layer being com

43、pacted by 25 strokes of the tamper. Skim off the excess mortar with a palette knife leaving the mortar surface plane and level with the top of the mould. Place two layers of white cotton gauze tightly on the mortar surface. Place six layers of absorbent filter paper on top of the gauze. Cover the ab

44、sorbent filter paper with a glass plate and turn the mould upside down keeping the glass plates at the bottom and top firmly attached to the mould. Carefully remove the glass plate from the top of the inverted mould, place six layers of absorbent filter paper on the exposed gauze and re-cover with t

45、he glass plate on top. Re-invert the mould back to its upright position and place it on a fixed table and load with mass of approximately 5 kg. After 3 h remove the load and the glass plate. Discard the absorbent filter paper and the gauze on top of the mould, and re-cover with the glass plate on to

46、p. Invert the mould, keeping the glass plates at the bottom and the top firmly attached to the mould. Remove the glass plate from the top of the inverted mould and discard the absorbent filter paper and the gauze. Then store the mould as described in 7.3. 7.3 Storage and curing conditions Place the

47、mould in a humidity chamber or in sealed polyethylene bags. Then after the period given in Table 1 remove the specimens from the mould and subsequently store them on the grid with triangular section webs under the conditions also described in Table 1. EN 1015-11:1999 + A1:2006 (E) 7 Table 1 Preparat

48、ion and conditions of storing specimens Storage time at a temperature of 20 C 2 C in daysRelative humidity 95 % 5 % or in polyethylene bag 65 % 5 % Type of mortar Preparation in the mould with the mould removed with the mould removed Air-lime mortars 7.2.3 5 2 21 Air-lime/cement mortars with cement

49、mass not exceeding 50 % of the total binder mass 7.2.3 5 2 21 Cement and air-lime/cement mortars with mass of air-lime not exceeding 50 % of the total binder mass 7.2.2 2 5 21 Mortars with other hydraulic binders 7.2.2 2 5 21 Retarded mortars 7.2.2 5 2 21 8 Determination of flexural strength 8.1 Apparatus A testing machine capable of applying the load at a rate specified in 8.2. The machine shall comply with the requirements in Table 2. The machine shall have two steel supporting rollers of length b