pmb and recycling - vejforum.dk · 12/7/2016 · evolution of pmb rc production 2014 25/55-55 a rc...
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PMB AND RECYCLING RECYCLING ON A HIGH PERFORMANCE LEVEL
– EXPERIENCES FROM GERMANY –
Thomas Sandmann
TOTAL Bitumen Deutschland GmbH
Industriegebiet Süd
25541 Brunsbüttel
thomas.sandmann@total.de
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 2
Asphalt production in Germany [Mio. t]
Q
uelle:
EA
PA
; A
sp
halt
in
Fig
ure
s 2
006
-2014
0
10
20
30
40
50
60
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 3
RAP used in hot and warm recycling [Mio. t]
0
10
20
30
40
50
60
Qu
elle:
EA
PA
; A
sp
halt
in
Fig
ure
s 2
006
-2014
Recycling of Asphalt in Germany
HMA 90 %
unbound layers
10 %
10.9 Mio. t
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 4
Qu
elle:
DA
V;
Au
ssch
reib
en
vo
n A
sp
halt
arb
eit
en
Qu
elle:
EA
PA
; A
sp
halt
in
Fig
ure
s 2
014
Asphalt Production [%]
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 5
Qu
elle:
EA
PA
; A
sp
halt
in
Fig
ure
s 2
014
ATS 51 %
ABi 19 %
AC D19 %
SMA10 %
MA 1 %
AD 30 %
PmB in Road Construction
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 6
Qu
elle:
ww
w.a
rbit
.de
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 7
Recycling of Asphalt in Germany
Experience with RA in Germany since more than 30 years
binder courses with PMB with the requirement of an equivalent binder in the complete mixture
since 1996 < 20 % share of RA
since 2005 < 40 % share of RA
new hotmix production that contains reclaimed material ~ 97 % (in 2012)
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 8
Need for PmB RC Q
uelle:
AR
BIT
; 75 J
ah
re A
RB
IT
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 9
Need for PmB RC Q
uelle:
AR
BIT
; 75 J
ah
re A
RB
IT
Life Time AC Binder acc. RPE-Stra 01
Life Time SMA
Life time AC top layer
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 10
Evolution of PmB RC production
2014
25/55-55 A RC
21 %
25/55-55 A RC+
12 %
25/55-55 A67 %
2011
25/55-55 A RC19 %
25/55-55 A RC+3 %
25/55-55 A
78 %
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 11
PmB for Recycling
Authorities
Demand Asphalt with
100 % PMB
Clients
wish
Asphalt with PMB
and high share of
RA
TOTAL
Result Asphalt with
100 % STYRELF
binder in the mixture (product and binder of RA) must fulfill the national specifications for a PMB
product must fulfill the national specifications for a PMB
binder of RA must have a elastic recovery > 50% (equal to origin binder)
product must make a high share of RA possible
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 12
Production of PmB
Polymer modification
spez. Pen Grade Bitumen + Styrol-Butadien-Polymer
= physical mixture of Bitumen and Polymer
+ Cross linking agent
= chemical cross-linked polymermodified Bitumen
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 13
Polymer content
! Influence of variable polymers
! Excessive polymer content -> phase inversion
Qu
elle:
Die
Asp
halt
str
asse
1/8
5
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 14
Effects of modification
+ extended plasticity range
+ improved elasticity
+ better cohesion
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 15
Effects of modification
+ SP R&B increasing
o Needle Penetration not changing
- Breaking Point decreasing
+ Elastic Recovery increasing
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 16
BLACK-Diagram
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 17
Technical Regulation
TL Bitumen-StB 07
Minimum value for Softening Point R&B
TL Asphalt-StB 07
Calculation of SP R&B when using RAP
ZTV Asphalt-StB 07
Requirement for SP R&B and Elastic Recovery (recovered binder)
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 18
Consequence of Technical Regulation
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 19
Consequence of Technical Regulation
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 20
Consequence of Technical Regulation
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 21
Consequence of Technical Regulation
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 22
Consequence of Technical Regulation
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 23
Decrease of R&B granulate
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 24
Decrease of R&B binder
Decrease of R&B binder & granulate
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 25
In Practice
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 26
60 % 25/55-55 RC+
40 % RA
25/55-55
Penetration @ 25
°C [1/10 mm]
35 25-55
Softening Point
R&B [°C]
61,0 > 55
Elastic Recovery
[%]
77 > 50
Breaking Point
Fraass [°C]
-11 < -10
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 27
In Practice
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 28
In Practice
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 29
In Practice
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 30
In Practice
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 31
Open Questions
Softening Point (R&B)
• Do we need an upper limit or we lack only an appropriate test method for addressing the low-temperature properties?
Use of softer binder
• Analog procedure for PmB as for the road bitumen when using asphalt granulate?
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 32
Conclusion
Specially formulated PMB-RC types allow a share of RAP from 40 - 50%
PmB-RC-made asphalts are equivalent to those with exclusively fresh binder
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 33
Guideline DAV
http://asphalt.de/site/startseite/
literatur/international_publications/
PmB and Recycling - T. Sandmann, TOTAL - Vejforum 2016/12/07 34
Thomas Sandmann
TOTAL Bitumen Deutschland GmbH
Tel: +49 4852 888-178
thomas.sandmann@total.de
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