1、BRITISH STANDARDBS EN 14617-8:2007Agglomerated stone Test methods Part 8: Determination of resistance to fixing (dowel hole)The European Standard EN 14617-8:2007 has the status of a British StandardICS 91.100.15g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44
2、g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14617-8:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2007 BSI 2007ISBN 978 0 580 55244 1National forewordTh
3、is British Standard is the UK implementation of EN 14617-8:2007.The UK participation in its preparation was entrusted to Technical Committee B/545, Natural stone.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to inc
4、lude 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 publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14617-8Octobe
5、r 2007ICS 91.100.15English VersionAgglomerated stone - Test methods - Part 8: Determination ofresistance to fixing (dowel hole)Pierre agglomre - Mthodes dessai - Partie 8 :Dtermination de la rsistance aux attaches (trous pourbroches)Knstlich hergestellter Stein - Prfverfahren - Teil 8:Bestimmung der
6、 Bestndigkeit gegen Befestigungen(Ankerdornloch)This European Standard was approved by CEN on 26 August 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alterat
7、ion. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management 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 translat
8、ionunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Gree
9、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Ce
10、ntre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14617-8:2007: EEN 14617-8:2007 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Principle4 4 Symbols 4 5 Apparatus .4 6
11、Preparation of the specimens 5 6.1 Sampling.5 6.2 Test specimens5 6.2.1 General5 6.2.2 Tests5 6.2.3 Number of specimens .5 6.2.4 Surface finish of the specimens.5 6.2.5 Dimensions of the specimens5 6.2.6 Location of the holes.6 6.2.7 Dimensions and tolerances of the holes.6 6.2.8 Drilling the holes6
12、 6.2.9 Conditioning.6 6.2.10 Measuring d and d16 6.3 Clamping device 7 7 Dowels 9 7.1 Dimensions and tolerances 9 7.2 Material .9 7.3 Placing the dowels.9 8 Test procedure.9 9 Expression of the results10 10 Test report 10 Annex A (normative) Statistical evaluation of the test results.12 A.1 Scope 12
13、 A.2 Symbols and definitions .12 A.3 Statistical evaluation of test results 13 EN 14617-8:2007 (E) 3 Foreword This document (EN 14617-8:2007) has been prepared by Technical Committee CEN/TC 246 “Natural stones”, the secretariat of which is held by UNI. This European Standard shall be given the statu
14、s of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2008, and conflicting national standards shall be withdrawn at the latest by April 2008. Test methods for agglomerated stones consist of the following: EN 14617-1, Agglomerated stone Test m
15、ethods Part 1: Determination of apparent density and water absorption EN 14617-2, Agglomerated stone Test methods Part 2: Determination of flexural strength (bending) EN 14617-4, Agglomerated stone Test methods Part 4: Determination of the abrasion resistance EN 14617-5, Agglomerated stone Test meth
16、ods Part 5: Determination of freeze and thaw resistance EN 14617-6, Agglomerated stone Test methods Part 6: Determination of thermal shock resistance EN 14617-8, Agglomerated stone Test methods Part 8: Determination of resistance to fixing (dowel hole) EN 14617-9, Agglomerated stone Test methods Par
17、t 9: Determination of impact resistance EN 14617-10, Agglomerated stone Test methods Part 10: Determination of chemical resistance EN 14617-11, Agglomerated stone Test methods Part 11: Determination of linear thermal expansion coefficient EN 14617-12, Agglomerated stone Test methods Part 12: Determi
18、nation of dimensional stability EN 14617-13, Agglomerated stone Test methods Part 13: Determination of electrical resistivity EN 14617-15, Agglomerated stone Test methods Part 15: Determination of compressive strength EN 14617-16, Agglomerated stone Test methods Part 16: Determination of dimensions,
19、 geometric characteristics and surface quality of modular tiles No existing standard is superseded. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Cz
20、ech 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. EN 14617-8:2007 (E) 4 1 Scope This European Sta
21、ndard specifies a test method to determine the breaking load at the dowel hole of agglomerated stones slabs used for cladding or lining in buildings. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editi
22、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 197-1, Cement Part 1: Composition, specifications and conformity criteria for common cements EN 10088-1, Stainless steels Part 1: List of stainless steels EN 12390-4, Testin
23、g hardened concrete Part 4: Compressive strength Specification for testing machines 3 Principle This test consists of applying a force in a direction perpendicular to the face of a specimen through a dowel previously placed in a hole drilled in one of its sides and measuring the breaking load of the
24、 specimen. 4 Symbols For the purposes of this document, the following symbols apply. d is the thickness of the test specimen, in millimetres 1dis the distance from the hole wall to the face where fracture occurs, in millimetres Abis the maximum distance of the centre of the hole to the fracture edge
25、 on the face, in millimetres F is the individual breaking load, in newtons 1dis the mean value of d, in millimetres F is the mean value of F, in newtons Ab is the mean value of Ab , in millimetres 5 Apparatus 5.1 A balance capable of weighing the specimens with an accuracy of 0,1 % of their mass. 5.
26、2 A ventilated oven capable of maintaining a temperature of (70 5) C. 5.3 A linear measuring device with an accuracy of 0,05 mm. 5.4 A rotary drilling machine equipped with a diamond or tungsten carbide tipped bit. 5.5 A testing machine of appropriate force in accordance with EN 12390-4 and calibrat
27、ed according to this European Standard. EN 14617-8:2007 (E) 5 5.6 A clamping device consisting of two metal plates having the shape and sizes shown in Figure 1. 5.7 A device for applying loads perpendicular to the axis of the dowel (see Figure 2). 5.8 A room or chamber in which the temperature of th
28、e air can be maintained at (20 5) C. 6 Preparation of the specimens 6.1 Sampling The sampling is not the responsibility of the test laboratory except where specially requested. 6.2 Test specimens 6.2.1 General The test can be carried out as an identification test or as a technological or performance
29、 test. 6.2.2 Tests 6.2.2.1 Identification test This test is performed only for comparison sake on samples of standard thickness (30 3) mm, which might not be the thickness of the actual agglomerated stone slabs or cut to size products selected for the application. 6.2.2.2 Technological or performanc
30、e test This test is performed on samples of the actual thickness of the agglomerated stone slabs or cut to size products selected for the application. 6.2.3 Number of specimens 12 tests shall be made on 3 specimens. 6.2.4 Surface finish of the specimens a) identification test The surface finish on t
31、he faces and sides of the specimens shall be sawn, honed or polished. b) technological test The surface finish on the faces and sides of the specimens shall be carried out according to the application (for example sawn, honed, polished, sanded, rubbed, flamed, bush hammered, riven). 6.2.5 Dimensions
32、 of the specimens a) identification test The specimens are square slabs with faces (200 1) mm and a thickness of (30 3) mm. The permissible deviation on the squareness is a maximum of 2 mm. b) technology test The specimens are square slabs with faces (200 1) mm and a thickness (d 0,1 d) mm. EN 14617
33、8:2007 (E) 6 6.2.6 Location of the holes A hole is wet drilled perpendicularly in each of the four sides in the following manner: a) identification test The centre of the hole shall be situated between 98 mm and 102 mm from the other sides, measured to the nearest 0,5 mm. The thickness of stone bet
34、ween the edge of the hole and two faces shall be (10 2,0) mm, measured to the nearest 0,5 mm. b) technological test The centre of the hole shall be situated in the middle of the specimens length. The thickness of stone between the edge of the hole and the face to be tested shall be according to the
35、application, measured to the nearest 0,5 mm. 6.2.7 Dimensions and tolerances of the holes a) identification test The diameter of the holes shall be (10 0,5) mm. The depth of the holes shall be (30 2) mm. b) technological test The diameter of the holes shall be in accordance with the requirement of t
36、he application. The depth of the hole shall be (30 2) mm. 6.2.8 Drilling the holes The holes shall be wet drilled with a diamond or tungsten carbide tipped drill bit without hammering. 6.2.9 Conditioning The specimens shall be dried to constant mass at (70 5) C in a ventilated oven after the drillin
37、g of the holes but before the dowels are fixed in place. Constant mass is reached when the difference between two weightings carried out (24 2) h apart is less then 0,1 % of the first of the two masses. After drying and prior to placing the dowels the specimen shall be stored at (20 5) C until the t
38、hermal equilibrium is reached. 6.2.10 Measuring d and d1After conditioning the thickness (d) and the distance from the edge of each hole to the lower face of the specimen in the direction of the force (d1) shall be measured. EN 14617-8:2007 (E) 7 6.3 Clamping device a) General view Dimensions in mil
39、limetres b) Detail of a plate suitable for tests on specimens having dimensions of 200 mm 200 mm Key 1 specimen 2 dowel 3 metal plate F force applied on the specimen L length of the specimen t thickness of the metal plate Figure 1 Clamping device to hold the specimen in place EN 14617-8:2007 (E) 8 D
40、imensions in millimetres Key 1 specimen 2 dowel 3 device for applying load F force applied on the specimen Figure 2 Device for applying loads perpendicular to the axis of the dowel Figure 3 Test arrangement for a specimen EN 14617-8:2007 (E) 9 7 Dowels 7.1 Dimensions and tolerances a) identification
41、 test The diameter of the dowels shall be (6,0 0,1) mm. The length of the dowel shall be 50 mm. b) technological test The diameter of the dowels shall be in accordance with the required use. The length of the dowel shall be 50 mm. 7.2 Material The dowels shall be made of stainless steel type 1.4571
42、according to EN 10088-1. 7.3 Placing the dowels After the specimens have reached room temperature (20 5) C the dowels are fixed in the holes. Place one of the sides of each specimen in an upper horizontal position. Place the dowel vertically and centrally in the hole. Fix the dowel in the hole for a
43、 length of (25 1) mm using mortar prepared with cement CEM I 52,5 R in accordance with EN 197-1 and a water/cement ratio of (0,6 0,1) by mass. Wait at least one hour and then repeat the same procedure for the other sides of the specimen that are to be tested. The specimens shall then be stored at (2
44、0 5) C for a minimum of 48 h prior to testing. 8 Test procedure The specimen is clamped between the two metal plates of the clamping device on 60 % of specimen length (see Figure 1). The load is exerted in a direction perpendicular to the axis of the dowel at a maximum distance of 2 mm from the edge
45、 of the specimen by means of the system shown in Figure 2. The load is increased uniformly at a rate of (50 5) N/s until the specimen breaks. The breaking load is recorded to the nearest 50 N. If the dowel bends then the test shall be repeated with a larger diameter dowel and a new specimen. After t
46、he specimen has failed the maximum distance from the centre of the hole to the fracture edge (bA) shall be measured (Figure 4). EN 14617-8:2007 (E) 10 Key d thickness of the test specimen d1distance from the hole to the face in the direction of the force bAmaximum distance of the centre of the hole
47、to the fractures edge Figure 4 Dowel hole failure 9 Expression of the results For each tested series the following mean values shall be calculated from the individual results recorded for each test: a) mean value of the distance from the hole to the face where the fracture occurs (d1) expressed in m
48、illimetres to the nearest 1,0 mm; b) maximum distance from the centre of the hole to the edge of the fracture (bA) expressed in millimetres to the nearest 1,0 mm; c) mean value of the breaking load (F) expressed in newtons to the nearest 50 N. 10 Test report The test report shall contain the followi
49、ng information: a) unique identification number for the report; b) number, title and date of issue of this European standard; c) name and address of the test laboratory and the address of where the test was carried out if different from the test laboratory; d) name and address of the client; e) surface finish of the specimens (if relevant to the test); f) date of delivery of the samples or of the specimens; g) date when the spec
