Andrew Cooper Cooper Research Technology. Talar du engelska?

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Lydia Cannon
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1 Andrew Cooper Cooper Research Technology Talar du engelska? 1

2 Topics of this presentation EN Stiffness EN Cyclic compression EN Fatigue EN Wheel tracking EN12697 Specimen preparation 2

3 EN12697 & EN13108 Unlike previous British and Swedish standards(i think), these European standards are intended to define the material on site, i.e. still in the back of the lorry and before compaction. They do not cover performance testing of laid materials. 3

EN 12697-26 Stiffness 5 equivalent methods called up 2 Point Bending 15C 10Hz 3 Point

4 EN Stiffness 5 equivalent methods called up 2 Point Bending 15C 10Hz 3 Point Bending 20C 8Hz 4 Point Bending 20C 10Hz Direct Tension 15C 10Hz Indirect Tension 20C 124µs 4

5 EN stiffness(it-cy) 5

6 NAT wave & NU wave 6

EN 12697-26 DD213 v IT-CY DD 213 EN12697-26 Annex C

7 EN DD213 v IT-CY DD 213 EN Annex C Temperature correction X O Load area factor correction X X 7

8 EN Trapezoidal bending 8

9 EN Cyclic compression A B 9

10 EN Methods A & B Test RLAT Indent Vacuum RLAT W/T Strain & rut measurements RLAT Indent Vacuum RLAT W/T Strain rate & rut rate measurements RLAT Indent Vacuum RLAT W/T

11 EN Wave This accuracy is not possible with NAT 11

12 EN Load area factor 12

13 EN Analysis Log axes The strain Linear at axes a 1000 cycles is determined 13

14 NU-14 Calibration 14

15 EN methods are described in EN called up in EN Fatigue wont be specified in the UK The VTI indirect tensile fatigue is interesting and could be performed with the NU-14 15

16 EN Two point trapezoidal and four point bending are specified in EN Europe is split over these two methods 16

17 Universal software Research 17

18 Other NU-14 tests Unbound material testing 18

19 EN Wheel tracking Two wheel tracking methods are specified in EN

20 EN Small device Standards BS 598 EN12697 Load 520N 700N Cycles Temperature 45C/60C 60C Measurements 1 25/50 Tests 6 2 Test length 45 mins 10,000 cycles 20

21 EN Large device Standard EN Load 5000N Cycles 60(1Hz) Measurements 15 Temperature 60 Tests 2 Test length 30,000 21

22 EN Slab compaction 22

23 EN Gyratory compaction New Cooper Gyratory compactor 23

24 Conclusions In Round Robins conducted by CRT, Colas and TRL IT-CY correlated well The cyclic compression test will be accredited by UKAS only if performed on NU-14 The indentation test is only specified for Mastic Asphalt The small wheel tracking test is widespread in and out of Europe Testing equipment must be calibrated in order to CE mark asphalt NATs can be upgraded to NU-14s 24

25 UK perspective The UK has produced documents to advise on the implementation of EN12697 and EN13108 Recommended reading: PD6692:2006 Guidance on the use of EN12697 Test specifications PD6691:2007 Guidance on the use of EN13108 Material specifications 25

26 Countries visited in 2007 Pakistan Greece Denmark Czech Rep Poland Thailand Singapore Bahrain Portugal Mexico Argentina Chile Hong Kong France Spain China Croatia Slovenia Morocco Cuba India France Saudi Arabia Dubai*

27 Portuguese selection Part 1 Soluble binder content Initial type testing ( ITT) Part 2 Determination of particle size distribution - ITT Part 3 Bitumen recovery: Rotary evaporator Part 4 Bitumen recovery: Fractionating column Part 5 Determination of the maximum density Part 6 Determination of bulk density of bituminous specimen _ Part 7 Determination of bulk density of bituminous specimen by gamma rays Part 8 Determination of voids characteristics of bituminous specimens - ITT Part 9 Determination of the reference density Part 10 Compactability Part 11 Determination of the affinity between aggregate and bitumen Part 12 Determination of the water sensitivity of bituminous specimens - ITT Part 13 Temperature measurement Part 14 Water content Part 15 Determination of the segregation sensitivity Part 16 Abrasion by studded tyres Part 17 Particle loss of porous asphalt specimen Part 18 Binder drainage 27

28 Part 19 Permeability of specimen Part 20 Indentation using cube or Marshall specimens Part 21 Indentation using plate specimens Part 22 Wheel tracking -ITT Part 23 Determination of the Indirect tensile strength of bituminous specimen ITT Part 24 Resistance to fatigue Part 25 Cyclic compression test Part 26 Stiffness Part 27 Sampling Part 28 Preparation of samples for binder content, water content and grading. Part 29 Determin. of the dimensions of a bituminous specimen Part 30 Specimen preparation by impact compactor ITT Part 31 Specimen preparation by gyratory compactor Part 32 Laboratory compaction of bituminous mixtures by vibratory compactor Part 33 Specimen preparation by roller compactor Part 34 Marshall Test Part 35 Laboratory mixing Part 36 Determination of the thickness of a bituminous pavement Part 37 Hot sand test for the adhesivity of a binder on precoated chipping for HRA Part 38 Common equipment and calibration Part 39 Binder content by ignition Part 41 Resistance to de-icing fluid Part 43 Resistance to fuel 28

Aggregates Table 1 No. Title Options

Aggregates Table 1 No. Title Options Aggregates Table 1 BS EN 932-1 Methods for sampling From stockpiles BS EN 932-2 Methods for reducing laboratory samples BS EN 932-3 BS EN 933-1 BS EN 933-2 Procedure and terminology for simplified petrographic