MnDOT Roger Olson TERRA Research Dev. Engr. Tom Wood Research - - PowerPoint PPT Presentation

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Oct 31, 2022 285 likes •355 views

MnDOT Roger Olson TERRA Research Dev. Engr. Tom Wood Research Project Specialist Mark Watson Asst. Bituminous Engr. Jerry Geib Research Operations Engr. 2010 data Permeability & Density of Ljt 250

SLIDE 1

MnDOT

Roger Olson
TERRA Research Dev. Engr.
Tom Wood
Research Project Specialist
Mark Watson
Asst. Bituminous Engr.
Jerry Geib
Research Operations Engr.

SLIDE 2

2010 data

SLIDE 3

50 100 150 200 250 Jointbond+ Adhesive Adhesive Jointbond Control Class 5 Agg. Base Permeability Coeficient, in/day

Permeability & Density of Ljt

OverCL 6" Away

16.7 15.4 16.9 11.4 11.1 10.1 16.3

SLIDE 4

HiMA Highly Modified Asphalt

NEPPP develop the spec. AASHTO TSP2
7.5% Kraton polymer. SBS polymer.
1.5” & 2” mill and fill, on TH 100.
PG 76-34, tested at MnDOT lab.
1370 tons of HMA, ~12,400 gal of AC.
64-28 is typical binder for metro overlay.
Both mixes had 25% RAP. >70% new AC.