1、BRITISH STANDARD BS EN 1015-2:1999 Incorporating amendment no. 1 Methods of test for mortar for masonry Part 2: Bulk sampling of mortars and preparation of test mortars The European Standard EN 1015-2:1998, incorporating amendment A1:2006, has the status of a British Standard ICS 91.100.10 BS EN 101
2、5-2:1999 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 February 1999 BSI 2007 ISBN 0 580 30745 X National foreword This British Stand
3、ard was published by BSI. It is the UK implementation of EN 1015-2:1998, incorporating amendment A1:2006. It is included in a package of standards that supersedes BS 4551-1, Methods of testing mortars, screeds and plasters Part I: Physical testing, which is withdrawn. The start and finish of text in
4、troduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“. The UK participation in its peparation was entrusted by Technical Committee B/519, Masonr
5、y and associated testing, to Subcommittee B/519/2, Mortar. A list of organizations represented on this subcommittee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
6、 Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. Date Comments 16883 31 January 2007 See national forewordCEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Cen
7、tral Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1015-2:1998 E EUROPEAN STANDARD EN 1015-2 NORME EUROPE ENNE EUROPA ISCHE NORM October 1998 ICS 91.100.10 Descriptors: masonr
8、y work, mortars: materials, sampling, preparation, batching, packing, certification English version Methods of test for mortar for masonry Part 2: Bulk sampling of mortars and preparation of test mortars Me thodes dessai des mortiers pour mac onnerie Partie 2: Echantillonage global des mortiers et p
9、re paration des mortiers dessai Pru fverfahren fu rM o rtel fu r Mauerwerk Teil 2: Probenahme von Mo rteln und Herstellung von Pru fmo rteln This European Standard was approved by CEN on 4 September 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c
10、onditions 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 Central Secretariat or to any CEN member. This European Standard exists in th
11、ree 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of A
12、ustria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. A1 + December 2006 Page 2 EN 1015-2:1998 Foreword This European Standard has been prepared by Technical Commi
13、ttee 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 April 1999, and conflicting national standards shall be withdrawn at the latest b
14、y September 2000. 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, Italy, Luxembourg, Nether
15、lands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Minimum bulk test sample size 3 5 Preparation of the bulk test sample and individual test samples 3 6 Preparation of test mortars from dry constit
16、uents and water or pre-batched mixes and binders 4 Foreword to amendment A1 This document (EN 1015-2:1998/A1:2006) has been prepared by Technical Committee CEN/TC 125 “Masonry“, the secretariat of which is held by BSI. This Amendment to the European Standard EN 1015-2:1998 shall be given the status
17、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 Regulations, the national standards organizations of the following
18、 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, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, S
19、weden, Switzerland and United Kingdom. BSI 2007Page 3 EN 1015-2:1998 1) According to the method being used (see 5.2.3). 1 Scope This European Standard specifies methods for taking a bulk sample of fresh mortar, and the preparation of a bulk test sample from this. It also specifies a procedure for pr
20、oducing test mortars from dry constituents and water. 2 Normative references EN 196-1, Method of testing cement Part 1: Determination of strength. Part 1: Rendering and plastering mortar with inorganic binding agents. Part 2: Masonry mortar. masonry Part 3: Determination of consistence of fresh mort
21、ar (by flow table). 3 Definitions For the purposes of this standard the following definitions apply. 3.1 lot quantity of mortar produced under conditions presumed uniform. After specified tests this quantity is regarded as a whole “conforming” or “not conforming” to the specifications 3.2 increment
22、quantity of mortar taken in a single operation of the sampling equipment used bulk sample the aggregation of sample increments meant to represent the lot sampled bulk test sample the reduced sample taken from the bulk sample which is used for the testing purposes of this standard 4 Minimum bulk test
23、 sample size The minimum bulk test sample size shall be 10 kg. 5 Preparation of the bulk test sample and individual test samples 5.1 Apparatus 5.1.1 Metal or rigid plastics receptacle or scoop 1) ,o f not less than 1 l capacity. 5.1.2 Clean, dry containers, with close-fitting lids. 5.1.3 Trowel or p
24、alette knife. 5.1.4 Flat shovel. 5.2 Procedure 5.2.1 General Obtain the bulk sample by taking uniformly distributed increments (preferably from material in motion, provided this can be carried out in safety), and mix thoroughly. Reduce the bulk sample in accordance with 5.3 to obtain the bulk test s
25、ample. 5.2.2 Sampling from batch mixers Sample the mortar at the discharge point of a batch from the mixer. Take not less than three increments spaced evenly through the batch at the discharge point of the mixer. Take increments by passing the receptacle across the stream of mortar in such a manner
26、as to collect a representative sample of mortar. 5.2.3 Sampling from conveyors, pipelines etc. Sample the mortar at the discharge point of the conveyor or pipeline. Pass the receptacle across the stream of mortar, if possible so as to cross the whole of the stream, until it is filled. If it is not p
27、ossible to catch the whole stream at once, pass the receptacle through the stream at a uniform rate so that consecutive increments are taken from different parts of the stream. Where it is not possible to sample at the discharge point of the conveyor, stop the conveyor and use the scoop (5.1.1) to t
28、ake increments from the full width and thickness of the stream of mortar on the conveyor. Take not less than three increments at regularly spaced time intervals during the passage of the whole of the quantity of the mortar that is being sampled. 5.2.4 Sampling from large hoppers, bins, or heaps bein
29、g moved Sample the mortar when hoppers etc. are being filled or emptied or when heaps are being moved, in accordance with 5.2.3.!The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, th
30、e latest edition of the referenced document (including any amendments) applies. “ EN 998-1, Specification for mortar for masonry EN 998-2, Specification for mortar for masonry EN 1015-3, Methods of test for mortar for ! “ ! “ ! “ Text deleted ! “ 3.3 !3.4 “ BSI 2007Page 4 EN 1015-2:1998 5.2.5 Sampli
31、ng from small hoppers, bins, static heaps, or bags Sample the mortar by means of the scoop. Take increments from material not less than 100 mm below the surface in at least three different places, distributed in a regular manner throughout the mass, so as to ensure, when mixed, a thoroughly represen
32、tative combined sample. 5.2.6 Bulk transport vehicles Sample the contents of bulk transport containers either during filling or emptying in accordance with 5.2.3 or, when this is not practical, by taking increments in accordance with 5.2.5. 5.3 Reduction of the bulk sample 5.4 Packing and certificat
33、e of sampling Each bulk test sample to be despatched to a laboratory in the containers shall be suitably labelled so that its origin can be identified at the laboratory. The bulk test sample shall be accompanied by a certificate from the person responsible for taking the samples stating that samplin
34、g was carried out in accordance with the requirements of this European Standard. This certificate shall include the following information: a) the name and address of the body responsible for sampling; b) the name and address of the customer; c) the place, date and time and method of producing the bu
35、lk test sample; d) identification of the mortar sample, including type, origin and designation by reference to the e) the quantity of the lot, or the period of production represented by the bulk sample; f) the number of increments and the mass of the original bulk sample; g) age of mortar when sampl
36、ed; h) identification mark on sample container; i) remarks. 5.5 Laboratory examination of bulk test samples Each bulk test sample received at the laboratory for test shall be examined visually to ascertain whether setting, leakage, or evaporation has occurred. If so, the bulk test sample shall be re
37、jected for further tests, other than sieve analysis (assuming the sample has not hardened). If none of the above factors is apparent, the whole of the sample, with any liquid that has separated, or has condensed on the inside of the container, shall be removed completely and mixed without loss of wa
38、ter to render it homogeneous. Where practicable, the temperature of the bulk test sample shall be adjusted to 208C 58C, without loss of water. In all cases the temperature of the sample at the time of test shall be recorded. 5.6 Time of testing Bulk test samples despatched to a laboratory for testin
39、g shall be tested immediately after arrival at the laboratory, and within the specified workable life of the mortar. Test 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, within their specified worka
40、ble life. 6 Preparation of test mortars from dry constituents and water or pre-batched mixes and binders 6.1 Amount of mortar for test samples The solid content of a prepared mortar mix, or the volume of the fresh mortar mix, shall be within the range given in Table 1. Table 1 Solid content and volu
41、me of the mortar mix Fresh mortar mix Mixer according to EN 196-1 Pan mixer Solid content (kg) 1,8 to 3,0 30 to 50 Volume (dm 3 ) 0,5 to 2,5 25 to 75 6.2 Mixing the mortar 6.2.1 General Fresh mortar used for the purpose of testing and preparing specimens for tests shall, as far as possible, have the
42、 consistence appropriate for its use. Unless otherwise specified, bring the fresh mortar sample to a defined flow value as specified in Table 2, and content needed to achieve this consistence is determined by the use of trial mixes. relevant Part of EN 998; ! “ determined in accordance with EN 1015-
43、3. The water ! “Immediately after collecting, using a flat shovel (5.1.4) combine and thoroughly mix the increments, taken in accordance with any of the methods described, on a flat, impervious rigid surface. !Care should be taken when lightweight or fibrous components are present in order to avoid
44、segregation. “ Complete the mixing within 5 min of placing the increments upon the surface. Reduce the bulk sample to produce a bulk test sample of not less than 10 kg by taking sufficient scoopfuls from random positions throughout the mixed material. Place the bulk test sample in one or more contai
45、ners (5.1.2) with close-fitting lids. The sampling operation shall not take longer than 3 min. In addition it is recommended that the following be added, if known: mixing procedure, i.e. mixer type and length of mixing period. BSI 2007Page 5 EN 1015-2:1998 2) Some admixtures may not be activated wit
46、hin the specified time and particular attention should be paid to the manufacturers instructions. Table 2 Defined flow value for various types of mortar related to the bulk density of fresh mortar Bulk density of fresh mortar Flow value kg/m 3 mm 1 200 175 10 600 to#1 200 160 10 300 to# 600 140 10 #
47、300 120 10 Carry out mixing according to the mortar manufacturers instructions. If such instructions are not available, follow the mixing procedure described in 6.2.2 or 6.2.3. Mix with the amount of water expected to give a mortar with the intended consistence. Measure the length of the mixing peri
48、od from the moment all constituents are introduced into the mixer. Record any deviation from the mixing procedure prescribed. 6.2.2 Mixer according to EN 196-1 After the predetermined amount of water has been introduced into the mixer, add the solid content of the dry mortar mix, as given in Table 1
49、, over a period s with the mixer running at low speed. For lightweight mortars correspondingly reduce the amount and take from a vessel as an average sample. Then complete mixing at the same speed for a further s unless otherwise specified by the manufacturer 2) . Follow the same procedure also for factory made mortars to which only water is to be added. For pre-batched mortars to which binders are also to be added, mix the addit
