Paramix mid-term meeting in Barcelona

November 13, 2002

Status of Swedish test sections for cold in-situ stabilization

Gothenburg

Umeå

Test sections are locatednorthwest of Umeå

Stockholm

Test road before stabilization

FWD measurementFWD measurement

Average thickness 50 mm

Under the surfacing ....

Unbound base ....

Swedish test sections

emulsion

SA 16 SA 16 SA 16

•50 mm aggregate A*•50 mm AC•50 mm gravel base

•50 mm aggregate B*•50 mm AC•50 mm gravel base

•50 mm AC•100 mm gravel base

Reference

emulsion no emulsion

Test 2Test 1 *added

100 mm new base

Existing

Adding unbound material

Emulsion mixed in”Dry”

mixing

New wearing course

In-situ cold stabilization steps

Emulsion production unit

Bitumen grades used in Sweden

10

100

1 000

10 000

50

/70

70

/10

0

10

0/1

50

16

0/2

20

33

0/4

30

V1

20

00

V6

00

0

V3

00

0

V1

50

0

Pe

ne

tra

tio

n

1000

10000

100000

1000000

Vis

co

sit

y

Bitumen grade used forthe bitumen emulsion