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1、BRITISH STANDARD BS EN 1015-11:1999 Incorporating amendment no. 1 Methods of test for mortar for masonry Part 11: Determination of flexural and compressive strength of hardened mortar The European Standard EN 1015-11:2000, incorporating amendment A1:2006, has the status of a British Standard ICS 91.
2、100.10 ? Licensed copy:PONTYPRIDD COLLEGE, 11/11/2007, Uncontrolled Copy, BSI BS EN 1015-11:1999 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 eff
3、ect on 15 November 1999 BSI 2007 ISBN 0 580 35469 5 National foreword This British Standard was published by BSI. It is the UK implementation of EN 1015-11:1999, incorporating amendment A1:2006. It is included in a package of standards relating to ties, tension straps, hangers, brackets, bed joint r
4、einforcement, masonry mortar and rendering and plastering mortar which supersedes the following British Standards which are withdrawn: BS 4551-1:1998, Methods of testing mortars, screeds and plasters Part 1: Physical testing; BS 4721:1981, Specification for ready-mixed building mortars; BS 5838-2:19
5、80, Specification for dry packaged cementitious mixes Part 2: Prepacked mortar mixes. The start and finish of text introduced 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 amendm
6、ent A1 is indicated by ?. The UK participation in its preparation was entrusted to Technical Committee B/519, Masonry 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 n
7、ot purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 1688031 January 2007 See national foreword.
8、 Licensed copy:PONTYPRIDD COLLEGE, 11/11/2007, Uncontrolled Copy, BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any me
9、ans reserved worldwide for CEN national Members. Ref. No. EN 1015-11:1999 E EUROPEAN STANDARD NORME EUROPE ENNE EUROPA ISCHE NORM ICS 91.100.10 English version Methods of test for mortar for masonry Part11:Determination of flexural and compressive strength of hardened mortar Me thodes dessai des mor
10、tiers pour mac onnerie De termination de la re sistance a la flexion et a la compression du mortier durci Pru fverfahren fu r Mo rtel fu r Mauerwerk Teil 11: Bestimmung der Biegezug- und Druckfestigkeit von Festmo rtel This European Standard was approved by CEN on 8 July 1999. CEN members are bound
11、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 Cent
12、ral Secretariat 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 Central Secretariat has the same status as
13、the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. + A1 December 2006 EN 1015-11 August
14、 1999 Licensed copy:PONTYPRIDD COLLEGE, 11/11/2007, Uncontrolled Copy, BSI Page 2 EN 1015-11:1999 Foreword This European Standard has been prepared 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 stand
15、ard, either by publication of an identical text or by endorsement, at the latest by February 2000, and conflicting national standards shall be withdrawn at the latest by December 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries
16、are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3P
17、rinciple3 4Definitions and symbols3 5Apparatus3 6Sampling4 7Preparation and storage of test specimens4 8Determination of flexural strength5 9Determination of compressive strength6 10Test report6 Annex A (normative) Description of metal moulds for specimen preparation7 Foreword to amendment A1 This d
18、ocument (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 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 endorse
19、ment, 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 countries are bound to implement this European Standard: Austria, Belgium, Cypr
20、us, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Annex B (informative) Suggested loading r
21、ates for different classes of masonry and rendering mortars 9 BSI 2007 Licensed copy:PONTYPRIDD COLLEGE, 11/11/2007, Uncontrolled Copy, BSI ? Page 3 EN 1015-11:1999 1)An English translation of a term used in most European countries. 1 Scope This European Standard specifies a method for determining t
22、he flexural and compressive strength of moulded mortar specimens. 2 Normative references Part 1: Rendering and plastering mortar with inorganic binding agents. 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.
23、EN 1015-3, Methods of test for mortar for masonry Part 3: Determination of consistence of fresh mortar (by flow table). 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 Pr
24、inciple The flexural strength of mortar is determined by three 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
25、for compressive strength testing can be produced from the 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 diox
26、ide. Generally they do not harden under water as they have no hydraulic properties 4.2 Symbols Fis the maximum load applied to the specimen, in Newtons (N). lis the distance between the axes of the support rollers, in millimetres (mm). bis the width of specimen in millimetres (mm). dis the depth of
27、the specimen in millimetres (mm). 5 Apparatus 5.1 Metal 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-s
28、ection, each side of which is 12 mm1 mm. The tamping face is flat and at right angles to the length of the tamper. The mass of the tamper is 50 g1 g. 5.3 Storage chambers, capable of maintaining a temperature of 20 8C2 8C and a relative humidity of 95 %5 % or 65 %5 %. 5.4 A clamp, enabling the assem
29、bled mould frame to be kept together at right angles. 5.5 White cotton gauze, four sheets each with a size of approximately 150 mm 3 175 mm. 5.6 Absorbent filter paper, with a specific mass of 200 g/m220 g/m2and water absorption capacity of 160 g/m220 g/m2; twelve sheets each with a size of approxim
30、ately 150 mm175 mm. 5.7 Polyethylene bags, capable of containing the steel moulds. 5.8 Two glass plates, of sufficient area to cover the steel mould. 5.9 A palette knife. 5.10 A grid, with webs of triangular section providing point contact support for storing and curing the specimens. 5.11 A trowel.
31、 Additional apparatus are described in 8.1 and 9.1. ? ? The following referenced documents are indispensable 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) ap
32、plies. EN 998-1 , Specification for mortar for masonry ? EN 998-2 , Specification for mortar for masonry ? BSI 2007 Licensed copy:PONTYPRIDD COLLEGE, 11/11/2007, Uncontrolled Copy, BSI ? Page 4 EN 1015-11:1999 6 Sampling The fresh mortar for this test shall have a minimum volume of 1,5 1 or at least
33、 1,5 times the quantity needed to perform the test, whichever is the greater, and shall be obtained either by reduction 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 i
34、n the bulk test sample shall be determined in accordance with EN 1015-3 and reported. Laboratory mixed samples shall 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 mort
35、ars when not gauged with hydraulic binders, shall be tested within their specified workable life. The length of 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
36、 5 s to 10 s to counteract any false setting etc., but without any additional mixing of the batch. Any deviation 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 3 40 mm 3 40 mm. Three specimens shall be provi
37、ded. For the compressive strength test, break the prisms into two halves to provide six half prisms. 7.2 Preparation 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
38、accordance with 7.2.2. Prepare mortars based on air-lime, and air-lime/cement mortars with cement mass not exceeding 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
39、retarding agents are incorporated in the mortar, unless otherwise specified. Clean the moulds and lubricate the internal faces of the assembled moulds with a thin layer of mineral oil to prevent adhesion of the mortar. 7.2.2 Mortars with hydraulic binders, and air-lime/cement mortars with mass of ai
40、r-lime not exceeding 50 % of the total binder mass Fill the mould with mortar in two 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 t
41、he mould as described in 7.3. 7.2.3 Mortars based on air-lime, and air-lime/cement 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.
42、Fill the mould with mortar in two 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. Place two layers of white cotton gauze tightly on the mortar sur
43、face. Place six layers of absorbent filter paper on top of the gauze. Cover the absorbent 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, p
44、lace six layers of absorbent filter paper on the exposed gauze and re-cover with the 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 filte
45、r paper and the gauze on top of the mould, and re-cover with the glass plate on top. 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
46、 store the mould as described in 7.3. 7.3 Storage and curing conditions Place the 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 cond
47、itions also described in Table 1. BSI 2007 Licensed copy:PONTYPRIDD COLLEGE, 11/11/2007, Uncontrolled Copy, BSI ? Page 5 EN 1015-11:1999 Table 1 Preparation and conditions of storing specimens Type of mortarPreparationStorage time at a temperature of 20 8C2 8C in days Relative humidity 95 %5 % or in
48、 polyethylene bag65 %5 % in the mouldwith the mould removed with the mould removed Air-lime mortars7.2.35221 Air-lime/cement mortars with cement mass not exceeding 50 % of the total binder mass 7.2.35221 Cement and air-lime/cement mortars with mass of air-lime not exceeding 50 % of the total binder
49、mass 7.2.22521 Mortars with other hydraulic binders7.2.22521 Retarded mortars7.2.25221 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 between 45 mm and 50 mm and 10 mm0,5 mm diameter, spaced 100,0 mm0