For more information visit http://www.arra.org/about-us/job-stories/2015-ncat-mn-road-us280/

1. NCAT Test Track Construction
CCPR & CIR, US280 MP 132 Location
September 2015
Updated: 22.09.15
Mike Marshall

2. Pre-mill US280, Wirtgen W200i Milling Machine

3. Pre mill depth 5 ins, to accommodate 4 ins of Recycling RAP
(including fluff) with provision for 1ins HMA overlay

4. Screened ¾ ins RAP at NCAT Yard

5. KMA220 Cold Mix Plant Production, Foam RAP Mix
Foam CCPR

6. 30 t Bitumen tanker
5000 gal
Water tanker
20 t
Cement silo
Cold mixing plant
KMA 200
350 kW Payloader
20 t tip
trucks
Typical KMA220 CCPR Site Set Up

7. KMA220 Cold Mix Plant Control Panel

8. Foamed Asphalt Mix Design Inputs
1.5% Cement, @.0% Compaction Water, 2.5% Foamed Asphalt

9. Foamed Asphalt Test Nozzle KMA220 Plant Mix

10. As the cement requirement was low, cement loaded into feed
hopper manually

11. KMA220 discharge conveyor, 100% Recycled RAP directly to truck

12. Foam RAP Mix delivered to Roadtec Paver, fitted with Carlson
Screed

13. Foamed Asphalt RAP at Paver Screed

14. Paving Foamed Asphalt RAP, Compacted to 4ins depth

15. Foamed Asphalt RAP Compaction

16. Completed Foam CCPR
section prior to tack coat
application.

17. Emulsion Tanker & Cement Feed Connection Positions
Emulsion CCPR

18. Emulsion Mix Test, determine optimum moisture %age
addition

19. Paving Emulsion RAP after compaction 4ins depth
Mix design, 3.0% Emulsion, 1.5% cement & 3.0% Compaction water

20. Emulsion RAP Compaction

21. Completed Emulsion
CCPR section prior to
tack coat application

22. Tackcoat application to both Foam & Emulsion CCPR
sections following compaction
Application Rate 0.050 gal/sqyd

23. Both CCPR Sections, Foam &
Emulsion opened to full
traffic after tackcoat
application
Sections were trafficked 4
hours after placing recycled
RAP

24. Foam RAP CCPR Section Emulsion CCPR Section
View both sections after overnight unrestricted speed high truck traffic

25. Emulsion CIR
CIR Section Pre-milled to depth of 1.4ins, 1.5% cement pre-spread
on milled pavement

26. Wirtgen 3800CR, recycling depth, 4ins, emulsion binder, rear
load directly to paver

27. Emulsion recycled material loaded directly into following
Roadtec paver hopper

28. Paving Emulsion CIR Material

29. 3800CR Control panel
Emulsion mix design, 3.3% emulsion, 3.3% added compaction water

30. Emulsion CIR Compaction

31. Completed Emulsion CIR Section

32. Foam CIR