1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58unbound mineralsThe European Standard EN 14952:2005 has the status of a British StandardICS 97.220.
2、10Surfaces for sports areas Determination of water absorption of BRITISH STANDARDBS EN 14952:2005BS EN 14952:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 November 2005 BSI 28 November 2005ISBN 0 580 47318 XThe British Standards whic
3、h 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.This publicati
4、on 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.Summary of pagesThis document comprises a front cover, an inside front cover, the
5、 EN title page, pages 2 to 9 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on request to its secretary.Cro
6、ss-referencesenquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is the official English language version of EN 14952:2005.The UK partici
7、pation in its preparation was entrusted to Technical Committee PRI/57, Surfaces for sports areas, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14952November 200
8、5ICS 97.220.10English VersionSurfaces for sports areas - Determination of water absorption ofunbound mineralsSols sportifs - Dtermination de labsorption deau desminraux non lisSportbden - Bestimmung der Wasseraufnahme vonungebundenen mineralischen BelgenThis European Standard was approved by CEN on
9、12 September 2005.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 alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may
10、be obtained on application to the Central 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 translationunder the responsibility of a CEN member into its own language and notified to the Central
11、 Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
12、Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserve
13、dworldwide for CEN national Members.Ref. No. EN 14952:2005: EEN 14952:2005 (E) 2 Contents Page Foreword 3 1 Scope .4 2 Principle.4 3 Apparatus 4 4 Test specimen .4 5 Conditioning4 6 Procedure 5 7 Expression of results5 8 Test report .5 EN 14952:2005 (E) 3 Foreword This European Standard (EN 14952:20
14、05) has been prepared by Technical Committee CEN/TC 217 “Surfaces for sports areas”, 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 May 2006, and conflict
15、ing national standards shall be withdrawn at the latest by May 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland,
16、France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14952:2005 (E) 4 1 Scope This European Standard specifies a method for the determination of wa
17、ter absorption of unbound minerals (grain size till 6 mm) for outdoor sports surfaces. 2 Principle A cylinder with a perforated bottom, filled with a dry unbound mineral, is placed in a water tank. The amount of water absorbed by the material in a specified period of time is a measure for the water
18、absorption. 3 Apparatus 3.1 Cylinder (acrylic glass), height 200 mm and diameter 110 mm. NOTE The apparatus is shown schematically in Figure 1. 3.2 Water tank, length 400 mm minimum, width 250 mm minimum and height 100 mm minimum. NOTE The apparatus is shown schematically in Figure 2. 3.3 Compaction
19、 apparatus, comprising the following. a) falling weight, having a mass of (2 000 25) g; b) stand, having a mass of (1 400 100) g; c) rubber disc, having a Shore A hardness of (45 5) , stiffness of (1,2 0,2) kN/mm and a resilience of (50 5) %. NOTE The apparatus is shown schematically in Figure 3. 3.
20、4 Supporting ring NOTE The supporting ring is shown schematically in Figure 4. 3.5 Means of measuring time to within 1 s and mass to within 0,01 g. 3.6 Funnel, diameter (200 20) mm. 4 Test specimen Prepare a test specimen having a grain size of 6 mm and a mass of at least 5 000 g. The specimen shall
21、 be dried in an oven at a temperature of (105 5) C for at least 24 h. After drying, the specimen shall be exposed to a temperature of (23 2) C and a relative humidity of (50 10) % for at least 24 h. 5 Conditioning Carry out the test under laboratory conditions at a temperature of (23 2) C and a rela
22、tive humidity (50 10) %. EN 14952:2005 (E) 5 6 Procedure Take 1 250 g of the specimen (dry mass = D) and fill the cylinder (3.1) with this material through a funnel (3.6) by turning the funnel slowly around approximately 20 mm above the surface. Place the cylinder on the supporting ring (3.4). Place
23、 the compaction apparatus (3.3) into the cylinder on top of the specimen. Compact the specimen 10 times by lifting the weight (380 5) mm and releasing it into a free fall onto the specimen. Determine the mass of the cylinder and the specimen (A). Fill the water tank (3.2) with (40 2) mm of water and
24、 slowly place the cylinder with the specimen vertically in the water tank. Leave the cylinder in the tank for 15 min 2 s. Remove the cylinder from the tank, wipe it quickly and carefully and weigh the cylinder and the specimen (B). Carry out this procedure twice. 7 Expression of results Calculate th
25、e water absorption, expressed in grams, as (B A) where A is the mass of the cylinder and the dry specimen expressed in grams; B is the mass of the cylinder and the specimen with absorbed water expressed in grams. If the difference between the results of the two tests is less than 10 g, calculate the
26、 average of both measurements and record this as the water absorption. If the difference is more than 10 g, repeat the procedure and ignore the first result. If after the third procedure the difference is still more than 10 g, record the minimum and maximum values of all results of the three procedu
27、res and the average. Express the water absorption as a percentage of the dry mass of the specimen, i.e: 100DABwhere A is the mass of the cylinder and the dry specimen expressed in grams; B is the mass of the cylinder and the specimen with absorbed water expressed in grams; D is the dry mass of the s
28、ample. 8 Test report The test report shall include the following information: a) absorption of water, expressed in grams; b) reference to this European Standard, i.e. EN 14952:2005; c) nature of the specimen; d) details of any deviation from the procedure. EN 14952:2005 (E) 6 Dimensions in millimetr
29、es Figure 1 Schematic illustration of the cylinder EN 14952:2005 (E) 7 Figure 2 Schematic illustration of the cylinder in the water tank EN 14952:2005 (E) 8 Dimensions in millimetres Figure 3 Schematic illustration of the compaction apparatus EN 14952:2005 (E) 9 Dimensions in millimetres Figure 4 Sc
30、hematic illustration of the supporting ring BS EN BSI389 Chiswick High RoadLondonW4 4AL14952:2005BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is inc
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