1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12697-40:2012Bituminous mixtures Testmethods for hot mix asphaltPart 40: In situ drainabilityBS EN 12697-40:2012 BRITISH STANDARDNational forewordThis British Standard is t
2、he UK implementation of EN 12697-40:2012.It supersedes BS EN 12697-40:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/510/1, Asphalt products.A list of organizations represented on this committee can beobtained on request to its secretary.This pu
3、blication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012 ISBN 978 0 580 76740 1 ICS 93.080.20 Compliance with a British Standard cannot confer immu
4、nity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2012. Amendments issued since publicationDate T e x t a f f e c t e dBS EN 12697-40:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12697-40 June 201
5、2 ICS 93.080.20 Supersedes EN 12697-40:2005English Version Bituminous mixtures - Test methods for hot mix asphalt - Part 40: In situ drainability Mlanges bitumineux - Mthodes dessai pour mlange hydrocarbon chaud - Partie 40: Drainabilit in situ Asphalt - Prfverfahren fr Heiasphalt - Teil 40: In-situ
6、-Durchlssigkeit This European Standard was approved by CEN on 25 May 2012. CEN members are bound 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 bibliog
7、raphical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsib
8、ility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece
9、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Ma
10、nagement Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12697-40:2012: EBS EN 12697-40:2012EN 12697-40:2012 (E) 2 Contents Page Foreword 31 Scope 62 Normative references 63 Terms and
11、definitions .64 Principle 65 Apparatus .75.1 Permeameter 75.2 Standing board .95.3 Stopwatch .95.4 Thermometer 95.5 Water .96 Procedure .96.1 Calibration 96.2 Locations 96.3 Measurement at each location 107 Calculation . 108 Report 119 Precision 11Annex A (normative) Apparatus calibration 12A.1 Appl
12、ication 12A.2 Volume calibration 12A.3 Series resistance time, r 12A.4 Parallel leakage time 12Bibliography . 14BS EN 12697-40:2012EN 12697-40:2012 (E) 3 Foreword This document (EN 12697-40:2012) has been prepared by Technical Committee CEN/TC 227 “Road materials”, the secretariat of which is held b
13、y DIN. 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 December 2012, and conflicting national standards shall be withdrawn at the latest by December 2012. Attention is drawn to the possibility th
14、at some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12697-40:2005. List of main technical changes from the last edition are as follows : The arrows sh
15、owing the diameter of the standpipe are corrected from external diameter to internal diameter. In list of items in figure 1, descriptions of: 12 changed from “sponge rubber seal (sealed cell); uniaxial elasticity 0,9 MPa nominal” to “sponge rubber seal (sealed cell); thickness (20 5) mm”; 13 changed
16、 from “base, synthetic resin bonded fabric” to “base, synthetic resin bonded fabric, thickness (13 3) mm”; and 14 changed from “standing board (end elevation)” to “standing board (end elevation), thickness (20 5) mm”. The length of surfacing represented by a test result has been removed. The correct
17、ion factor for the temperature of the water has been removed. This document is one of a series of standards as listed below: EN 12697-1, Bituminous mixtures Test methods for hot mix asphalt Part 1: Soluble binder content EN 12697-2, Bituminous mixtures Test methods for hot mix asphalt Part 2: Determ
18、ination of particle size distribution EN 12697-3, Bituminous mixtures Test methods for hot mix asphalt Part 3: Bitumen recovery: Rotary evaporator EN 12697-4, Bituminous mixtures Test methods for hot mix asphalt Part 4: Bitumen recovery: Fractionating column EN 12697-5, Bituminous mixtures Test meth
19、ods for hot mix asphalt Part 5: Determination of the maximum density EN 12697-6, Bituminous mixtures Test methods for hot mix asphalt Part 6: Determination of bulk density of bituminous specimens EN 12697-7, Bituminous mixtures Test methods for hot mix asphalt Part 7: Determination of bulk density o
20、f bituminous specimens by gamma rays EN 12697-8, Bituminous mixtures Test methods for hot mix asphalt Part 8: Determination of void characteristics of bituminous specimens EN 12697-9, Bituminous mixtures Test methods for hot mix asphalt Part 9: Determination of the reference density BS EN 12697-40:2
21、012EN 12697-40:2012 (E) 4 EN 12697-10, Bituminous mixtures Test methods for hot mix asphalt Part 10: Compactability EN 12697-11, Bituminous mixtures Test methods for hot mix asphalt Part 11: Determination of the affinity between aggregate and bitumen EN 12697-12, Bituminous mixtures Test methods for
22、 hot mix asphalt Part 12: Determination of the water sensitivity of bituminous specimens EN 12697-13, Bituminous mixtures Test methods for hot mix asphalt Part 13: Temperature measurement EN 12697-14, Bituminous mixtures Test methods for hot mix asphalt Part 14: Water content EN 12697-15, Bituminous
23、 mixtures Test methods for hot mix asphalt Part 15: Determination of the segregation sensitivity EN 12697-16, Bituminous mixtures Test methods for hot mix asphalt Part 16: Abrasion by studded tyres EN 12697-17, Bituminous mixtures Test methods for hot mix asphalt Part 17: Particle loss of porous asp
24、halt specimen EN 12697-18, Bituminous mixtures Test methods for hot mix asphalt Part 18: Binder drainage EN 12697-19, Bituminous mixtures Test methods for hot mix asphalt Part 19: Permeability of specimen EN 12697-20, Bituminous mixtures Test methods for hot mix asphalt Part 20: Indentation using cu
25、be or cylindrical specimens (CY) EN 12697-21, Bituminous mixtures Test methods for hot mix asphalt Part 21: Indentation using plate specimens EN 12697-22, Bituminous mixtures Test methods for hot mix asphalt Part 22: Wheel tracking EN 12697-23, Bituminous mixtures Test methods for hot mix asphalt Pa
26、rt 23: Determination of the indirect tensile strength of bituminous specimens EN 12697-24, Bituminous mixtures Test methods for hot mix asphalt Part 24: Resistance to fatigue EN 12697-25, Bituminous mixtures Test methods for hot mix asphalt Part 25: Cyclic compression test EN 12697-26, Bituminous mi
27、xtures Test methods for hot mix asphalt Part 26: Stiffness EN 12697-27, Bituminous mixtures Test methods for hot mix asphalt Part 27: Sampling EN 12697-28, Bituminous mixtures Test methods for hot mix asphalt Part 28: Preparation of samples for determining binder content, water content and grading E
28、N 12697-29, Bituminous mixtures Test methods for hot mix asphalt Part 29: Determination of the dimensions of a bituminous specimen EN 12697-30, Bituminous mixtures Test methods for hot mix asphalt Part 30: Indentation using cube or cylindrical specimens (CY) EN 12697-31, Bituminous mixtures Test met
29、hods for hot mix asphalt Part 31: Indentation using cube or cylindrical specimens (CY) EN 12697-32, Bituminous mixtures Test methods for hot mix asphalt Part 32: Laboratory compaction of bituminous mixtures by vibratory compactor BS EN 12697-40:2012EN 12697-40:2012 (E) 5 EN 12697-33, Bituminous mixt
30、ures Test methods for hot mix asphalt Part 33: Specimen prepared by roller compactor EN 12697-34, Bituminous mixtures Test methods for hot mix asphalt Part 34: Marshall test EN 12697-35, Bituminous mixtures Test methods for hot mix asphalt Part 35: Laboratory mixing EN 12697-36, Bituminous mixtures
31、Test methods for hot mix asphalt Part 36: Determination of the thickness of a bituminous pavement EN 12697-37, Bituminous mixtures Test methods for hot mix asphalt Part 37: Hot sand test for the adhesivity of binder on precoated chippings for HRA EN 12697-38, Bituminous mixtures Test methods for hot
32、 mix asphalt Part 38: Common equipment and calibration EN 12697-39, Bituminous mixtures Test methods for hot mix asphalt Part 39: Binder content by ignition EN 12697-40, Bituminous mixtures Test methods for hot mix asphalt Part 40: In situ drainablility EN 12697-41, Bituminous mixtures Test methods
33、for hot mix asphalt Part 41: Resistance to de-icing fluids EN 12697-42, Bituminous mixtures Test methods for hot mix asphalt Part 42: Amount of coarse foreign matter in reclaimed asphalt EN 12697-43, Bituminous mixtures Test methods for hot mix asphalt Part 43: Resistance to fuel According to the CE
34、N/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
35、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12697-40:2012EN 12697-40:2012 (E) 6 1 Scope This European Standard describes a method to determine the in-situ relative hydraulic conductiv
36、ity, at specific locations, of a road surfacing that is designed to be permeable. An estimate of the average value for the surfacing is obtained from the mean value of a number of determinations on each section of road. The test measures the ability to drain water (drainability) achieved in-situ of
37、a surfacing. As such, it can be used as a compliance check to ensure that a permeable surface course has the required properties when it is laid. The test can also be used subsequently to establish the change of drainage ability with time. For the test to be valid, the surface of the test area shoul
38、d be clean and free from detritus. Measurements can be made when a road is either wet or dry, but not if it is in a frozen state. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated refe
39、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13036-1, Road and airfield surface characteristics Test methods Part 1: Measurement of pavement surface macrotexture depth using a volumetric patch tec
40、hnique 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 outflow time time (s) that elapses for an outflow of 4,0 L through the permeameter, between the meniscus at the 5 L mark and when it falls to the 1 L mark 3.2 series resistance time, r ou
41、tflow time(s) that is determined when the permeameter is located so the outlet is clear of any surfacing that could impede the exit of out-flowing water Note 1 to entry: The method for calculating the series resistance time is given in Annex A. Note 2 to entry: The series resistance time is subtract
42、ed from measurements of outflow time when the permeameter is used on a surfacing of a pavement. 3.3 parallel leakage time outflow time when the outlet is restricted by an impermeable surface 3.4 relative hydraulic conductivity (HC) reciprocal of the outflow time minus the series resistance time Note
43、 1 to entry: The relative hydraulic conductivity is specific to apparatus as shown in Figure 1 with the dimensions given in 5.1. 4 Principle A permeameter is used to determine the time taken for 4 l of water to dissipate through an annular area of the surfacing of a pavement under known head conditi
44、ons. The reciprocal of the outflow time is then used to calculate the relative hydraulic conductivity of the surfacing. BS EN 12697-40:2012EN 12697-40:2012 (E) 7 NOTE The result is relative, rather than absolute, because the time taken is dependent on the dimensions of the permeameter. However, all
45、measurements with the specified equipment should give mutually consistent results. 5 Apparatus 5.1 Permeameter Radial-flow falling head permeameter of the basic construction shown in Figure 1 and with the following critical dimensions that has been calibrated in accordance with Annex A: internal dia
46、meter of standpipe (125 0,5) mm, length of standpipe (560 20) mm, diameter of orifice in base (48 0,1) mm, taper to orifice (15 0,5) , diameter of rubber ball attached to plunger (51 0,5) mm, external diameter of sponge rubber under base (300 2) mm, internal diameter of sponge rubber under base (100
47、 2) mm. The standpipe shall be a tube of acrylic or other transparent material that will allow the height of water to be observed at any time. The standpipe shall be sealed to the base as to be watertight. The closed cell sponge rubber seal should have a durometer hardness of 30 to 45 measured with
48、a type 00 durometer according to ASTM D2240. BS EN 12697-40:2012EN 12697-40:2012 (E) 8 Dimensions in millimetres Key 1 handle 2 plunger 3 support for sensors 4 plunger rest 5 sensor (optional) 6 standpipe 7 sensor (optional) 8 support for sensors 9 rubber ball 10 O-ring 11 Orifice 12 sponge rubber s
49、eal (sealed cell); thickness (20 5) mm 13 base, synthetic resin bonded fabric, thickness (13 3) mm 14 standing board (end elevation), thickness (20 5) mm 15 standing board (plan view) 16 central hole 17 plywood 18 rubber foot, 25 mm high Figure 1 Typical permeameter and standing board (tolerances to
