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History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg,...
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Transcript of History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg,...
![Page 1: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/1.jpg)
History of Mn/DOT HMA Mixture Design & Construction
Significant Changes
By: Dave Holt,
Dick Ingberg, and
Earl Angell
![Page 2: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/2.jpg)
1950’s
• Transition from Road-Mix to Hot-Mix
• Density Control
![Page 3: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/3.jpg)
Roadmix
![Page 4: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/4.jpg)
HMA Plant
![Page 5: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/5.jpg)
Hveem Compactor & Heavy Pnuematic Roller
![Page 6: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/6.jpg)
1960’s• Elimination of Hot Screening
• Mix Design for Surface Coarse
• Thin HMA Overlays/Plant-Mix Seals
![Page 7: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/7.jpg)
Screen Deck & Drum-Mix Plants
![Page 8: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/8.jpg)
![Page 9: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/9.jpg)
CWA Test
![Page 10: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/10.jpg)
Thin Overlay
![Page 11: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/11.jpg)
1970’s• Oil Embargo
• Drum-Mix Plants
• Hot-mix Recycle
• Full-Depth HMA Design
![Page 12: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/12.jpg)
Avg. AC Bid Price, by Mn/DOT
0
50
100
150
200
Year
Cos
t/Ton
(D
olla
rs)
![Page 13: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/13.jpg)
Black Base Consumption, by Mn/DOT
0
0.2
0.4
0.6
0.8
119
67
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
Year
Ton
s of
Bla
ck B
ase
(Mill
ions
)
![Page 14: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/14.jpg)
HMA Recycling
![Page 15: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/15.jpg)
HMA Recycling
![Page 16: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/16.jpg)
HMA Recycling
![Page 17: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/17.jpg)
1980’s• Q/M (Quality Management)
• Volumetric Training
![Page 18: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/18.jpg)
Training & Voids Testing
![Page 19: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/19.jpg)
1990’s• Certified Technicians
• VMA & Moisture Susceptibility
• SuperPave
![Page 20: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/20.jpg)
Technicians Certified per Year
0
1000
2000
3000
4000
5000
Tec
hnic
ians
Bit Street 1
Bit Street II
Bit Plant I
Bit Plant II
![Page 21: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/21.jpg)
Immersion/Compression TestSuperpave Gyratory Compactor
![Page 22: History of Mn/DOT HMA Mixture Design & Construction Significant Changes By: Dave Holt, Dick Ingberg, and Earl Angell.](https://reader036.fdocuments.in/reader036/viewer/2022070307/551b2d82550346cf5a8b5f04/html5/thumbnails/22.jpg)
2000’s
• Warranties
• Design/Build
Percent of Pavements Rehabilitated(Joint Repair for Concrete or Overlay for Bituminous)
0%
20%
40%
60%
80%
100%
0 10 20 30 40 50
Pavement Age, years
Per
cen
t R
ehab
ilit
ated
Pcc
AC