Risk-free compaction of Warm Mix Asphalt modified with Evotherm

Transcription

1 XXXVII Seminarium Techniczna PSWNA Asfalty wielowymiarowe Paving of Asphalt mix modified with Evotherm in challenging climatical conditions Risk-free compaction of Warm Mix Asphalt modified with Evotherm 1

2 B 51 in the area of Prüm B 51, load classification BK lanes Length m, m² Paving 3,5 cm SMA 8S 8,5 cm AC 16 BS, 35 % RC 22,0 cm AC 32 TS, 30 % RC 2

3 B 51 in the area of Prüm 3 Paving sections, one lane each 1st paving section with Evotherm, paving mainly at minus degrees, Asphalt mix temperature in the usual range, near the lower T limit 2nd paving section with Evotherm, paving at outside T around 15 C, Asphalt mix temperature was reduced 3rd paving section with hydrated lime, without Evotherm, paving at summer temperatures, Asphalt mix temperatures in the usual range Asphalt production and delivery from 2 mixing plants Mixing plant #1, no parallel drum, no injection system for liquid additives Delivered exclusively the mix AC 32 TS with 30 % RAP Mixing plant #2, with parallel drum & injection system for liquid additives Delivered the mixes AC 16 BS with 35 % RAP + SMA 8S 3

4 Documentation - Vögele Road Scan Paving section #1, November 17 until December 15,

5 B 51, 2nd paving section, 2nd layer AC 32 TS Paving and compaction behavior depending on Temperature Density g/cm³ 165 C Mix Temperature Compaction Time (min.) Mix T Passes of compactor 5

6 B 51, 2nd paving section, 2nd layer AC 32 TS 140 C Mix Temperature 130 C Mix Temperature Paving and compaction behavior depending on Temperature 6

7 B 51, 2nd paving section, AC 16 BS 166 C Mix Temperature 140 C Mix Temperature 120 C Mix Temperature 7

8 166 C Mischguttemperatur B 51, 2nd paving section, SMA 8 S 140 C Mischguttemperatur 165 C Mischguttemperatur 140 C Mischguttemperatur 105 C Mischguttemperatur 8

9 B 51, 2nd paving section, AC 32 TS Results of the Troxler measurements 140 C 130 C 9

10 B 51, 2nd paving section, AC 16 BS 155 C 140 C 120 C 10

11 B 51, 2nd paving section, SMA 8 S 165 C 140 C 105 C 11

12 B 51, 2nd paving section, SMA 8 S, 105 C 105 C 12

13 B 51, 1st paving section, Control testing Density 13

14 B 51, 2nd paving section, Control testing 14

15 Penetration 1/10 mm Softening point, Ring & Ball C B 51, Binder testing 70/100 Remaining penetration % after influence of heat and air, DIN EN Change in soft. Point R&B C after influence of heat and air DIN EN accelerated long-term aging DIN EN BBR C m-value of BBR at 60 sec

16 Penetration 1/10 mm Softening point, Ring & Ball C B 51, Binder testing 25/55-55 A Remaining penetration % after influence of heat and air, DIN EN Change in soft. Point R&B C after influence of heat and air DIN EN accelerated long-term aging DIN EN BBR C m-value of BBR at 60 sec

17 Complex shear modulus (Pa) and phase shift angle ( ) B 51, Binder testing 25/55-55 A Elastic recovery (%) 25/55-55 A 25/55-55 A with Evotherm at 25 C 25/55-55 A without Evotherm at 25 C 17

18 B 51, Evotherm, also adhesion promoter Prüfvorschrift: Specification: TP Asphalt- StB, Teil Section Gesteinskörnung Aggregate: Quartzite Quarzit 8/11, 8/11, quarry Quarzitwerk Henau Henau Bindemittel: Binder: Shell Hersteller 50/70, PmB Shell, 25/55-55A Straßenbaubitumen 50/70, PmB 25/55-55A, Zusatzstoff: Additive: Evotherm Evotherm WM at mit 0.4% 0,4 by M.-% weight bezogen of binder auf den Bindemittelanteil Aggregate before coating Aggregate before coating 18

19 B 51, Evotherm, also adhesion promoter Prüfvorschrift: Specification: TP TP Asphalt- StB, Teil Section Gesteinskörnung Aggregate: Quartzite Quarzit 8/11, 8/11, quarry Quarzitwerk Henau Henau Bindemittel: Binder: Shell Hersteller 50/70, PmB Shell, 25/55-55A Straßenbaubitumen 50/70, PmB 25/55-55A, Zusatzstoff: Additive: Evotherm Evotherm WM at mit 0.4% 0,4 by M.-% weight bezogen of binder auf den Bindemittelanteil Binder Without Evotherm Binder Hours of rolling Hours of rolling Without Evotherm Coating (%) Coating (%) 19

20 B 51, Evotherm, also adhesion promoter Prüfvorschrift: Specification: TP TP Asphalt- StB, Teil Section Gesteinskörnung Aggregate: Quartzite Quarzit 8/11, 8/11, quarry Quarzitwerk Henau Henau Bindemittel: Binder: Shell Hersteller 50/70, PmB Shell, 25/55-55A Straßenbaubitumen 50/70, PmB 25/55-55A, Zusatzstoff: Additive: Evotherm Evotherm WM at mit 0.4% 0,4 by M.-% weight bezogen of binder auf den Bindemittelanteil Binder Binder Hours of rolling Without Evotherm Hours of rolling Without Evotherm Coating (%) Coating (%) 20

21 B 51, Evotherm, also adhesion promoter Prüfvorschrift: Specification: TP TP Asphalt- StB, Teil Section Gesteinskörnung Aggregate: Quartzite Quarzit 8/11, 8/11, quarry Quarzitwerk Henau Henau Bindemittel: Binder: Shell Hersteller 50/70, PmB Shell, 25/55-55A Straßenbaubitumen 50/70, PmB 25/55-55A, Zusatzstoff: Additive: Evotherm Evotherm WM at mit 0.4% 0,4 by M.-% weight bezogen of binder auf den Bindemittelanteil Binder Binder Hours of rolling Hours of rolling Coating (%) Coating (%) 21

22 Before conditioning in water After conditioning in water B 51, Water Resistance (ITSR) and Swelling Asphaltmischgut ITSR [%] Quellung [%]* SMA 8 S (1. BA, 4,000 vom 105 0, ) 22

23 Before conditioning in water After conditioning in water B 51, Water Resistance (ITSR) and Swelling Asphaltmischgut ITSR [%] Quellung [%]* AC 16 BS (1. BA, 4,000 vom ) 89 0,0 23

24 Decrease Emissionsreduktion in emissions (%) bei WMA mit Evotherm in % with Evotherm Warm Mix NOx CO. C ges. CO2 Benzol SO2 Ib&a Jannicke Ingenieure Köln, Innovation Beton & Asphalt Emissionsmessungen bei der Produktion von SMA 8 mit PmB Übliche Produktion, Reduction HMA of Rauchgastemperatur emissions with SMA 1958 C, S (K Brennstoff 31) comparing Braunkohlestaub Evotherm-Temperaturabgesenkte Produktion, WMA Rauchgastemperatur 137 C 0 % - 20 % - 40 % - 60 % - 80 % % Reduction of emissions with Evotherm Hot Mix at 180 C vs. Warm Mix at 150 C - 2,3 % - 21,0 % - 44,3 % - 47,5 % - 69,7 % - 76,3 % Measured parameters genehmigungsrelevante Messparameter 24

25 Thank you for your attention 25