Why use a Milling Machine?
2/14/2018
Best Practices for Milling and Profiling Tom Chastain Wirtgen America
Why use a Milling Machine? To give the paving crew a clean pallet to paint a masterpiece on.
#WorldofAsphalt
Communication
#WorldofAsphalt
1
2/14/2018
Office Superintendent Crew
#WorldofAsphalt
Production! Production! Production! #WorldofAsphalt
What machine do I need?
#WorldofAsphalt
2
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
Grade Controls
Control panel
Cylinder sensor
Wire-rope sensor
Slope sensor
Ultrasonic sensor
Sonic Ski sensor
Rotary angle sensor
Laser sensor
3D sensor
#WorldofAsphalt
3
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
4
2/14/2018
Where to Start…and Where to Stop Machine movement
#WorldofAsphalt
• Utilizing small milling machines
• • • •
Milling around obstructions Cutting joints Curb reveal Small patches
• All of these while maintaining grade!
#WorldofAsphalt
Cutting obstructions before large machine, allows the small unit to move ahead at a rapid pace so there is less clean up time after large machine
#WorldofAsphalt
5
2/14/2018
Starting off
#WorldofAsphalt
Cutter line spacing
#WorldofAsphalt
#WorldofAsphalt
6
2/14/2018
#WorldofAsphalt
60 FPM
30 FPM
#WorldofAsphalt
130 FPM
85 FPM
#WorldofAsphalt
7
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
8
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
The trade off milling at high speeds • Not actually cutting the depth you have set. Machine cant keep up. • Poor pattern. Means lessened interlocking of new pavement to milled surface. • Due to erratic depth, our asphalt tonnage is now off. • Compaction numbers will fluctuate. • Put unneeded amount of wear on machine. • Sizing of material. • This equals low quality, wasted materials, loss of money.
#WorldofAsphalt
9
2/14/2018
5/8”
15 mm
15 mm
5/16”
15 mm
8 mm
Standard milling drums with a spacing of 15 mm are eminently suitable for removing complete road pavements.
8 mm
8 mm
8 mm
Fine milling drums with a spacing of 8 mm are ideal for treating the surface of pavement courses.
#WorldofAsphalt
•
Standard spaced drums = machine full depth capability
•
Fine texture spaced drum = thin lift/profiling
•
Micro texture drum = thin lift/profiling
#WorldofAsphalt
#WorldofAsphalt
10
2/14/2018
Standard drum = maximum depth of machine. Fine texture/micro drum = 1 ½ inch max
#WorldofAsphalt
#WorldofAsphalt
Can I mill for quality and achieve the quantities?
Hour of operation
Operation Truck exchange Water and tooth exchange
#WorldofAsphalt
11
2/14/2018
#WorldofAsphalt
Water is your friend
•
Cutting tool coolant
•
Cutting tool lubricant
•
Dust suppression
•
Prevents build up on components
#WorldofAsphalt
#WorldofAsphalt
12
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
13
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
14
2/14/2018
#WorldofAsphalt
Drove my cost of operation up
Drove my quality down
#WorldofAsphalt
Conclusion If we maintain our machine, we have bettered our chances to achieve quality. If we slow our fpm down, we have bettered our chances to achieve quality. If we communicate with our team regarding the job, we have bettered our chances to achieve quality. If we do all of these things while putting SAFETY first, we WILL achieve quality.
#WorldofAsphalt
15
2/14/2018
Thank You
#WorldofAsphalt
Thank You Session Evaluations/PDH’s
See you again at:
• Professional Development Hours logged in session feedback.
• World of Asphalt 2019
• Complete session feedback in mobile app. • Answer “Yes” to last questions for PDH’s
• February 12-14, 2019 • Indianapolis, IN
• CONEXPO – CON/AGG 2020 • March 10-14, 2020 • Las Vegas, NV • 140+ education sessions
#WorldofAsphalt
16
Best Practices for Milling and Profiling Tom Chastain Wirtgen America
Why use a Milling Machine? To give the paving crew a clean pallet to paint a masterpiece on.
#WorldofAsphalt
Communication
#WorldofAsphalt
1
2/14/2018
Office Superintendent Crew
#WorldofAsphalt
Production! Production! Production! #WorldofAsphalt
What machine do I need?
#WorldofAsphalt
2
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
Grade Controls
Control panel
Cylinder sensor
Wire-rope sensor
Slope sensor
Ultrasonic sensor
Sonic Ski sensor
Rotary angle sensor
Laser sensor
3D sensor
#WorldofAsphalt
3
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
4
2/14/2018
Where to Start…and Where to Stop Machine movement
#WorldofAsphalt
• Utilizing small milling machines
• • • •
Milling around obstructions Cutting joints Curb reveal Small patches
• All of these while maintaining grade!
#WorldofAsphalt
Cutting obstructions before large machine, allows the small unit to move ahead at a rapid pace so there is less clean up time after large machine
#WorldofAsphalt
5
2/14/2018
Starting off
#WorldofAsphalt
Cutter line spacing
#WorldofAsphalt
#WorldofAsphalt
6
2/14/2018
#WorldofAsphalt
60 FPM
30 FPM
#WorldofAsphalt
130 FPM
85 FPM
#WorldofAsphalt
7
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
8
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
The trade off milling at high speeds • Not actually cutting the depth you have set. Machine cant keep up. • Poor pattern. Means lessened interlocking of new pavement to milled surface. • Due to erratic depth, our asphalt tonnage is now off. • Compaction numbers will fluctuate. • Put unneeded amount of wear on machine. • Sizing of material. • This equals low quality, wasted materials, loss of money.
#WorldofAsphalt
9
2/14/2018
5/8”
15 mm
15 mm
5/16”
15 mm
8 mm
Standard milling drums with a spacing of 15 mm are eminently suitable for removing complete road pavements.
8 mm
8 mm
8 mm
Fine milling drums with a spacing of 8 mm are ideal for treating the surface of pavement courses.
#WorldofAsphalt
•
Standard spaced drums = machine full depth capability
•
Fine texture spaced drum = thin lift/profiling
•
Micro texture drum = thin lift/profiling
#WorldofAsphalt
#WorldofAsphalt
10
2/14/2018
Standard drum = maximum depth of machine. Fine texture/micro drum = 1 ½ inch max
#WorldofAsphalt
#WorldofAsphalt
Can I mill for quality and achieve the quantities?
Hour of operation
Operation Truck exchange Water and tooth exchange
#WorldofAsphalt
11
2/14/2018
#WorldofAsphalt
Water is your friend
•
Cutting tool coolant
•
Cutting tool lubricant
•
Dust suppression
•
Prevents build up on components
#WorldofAsphalt
#WorldofAsphalt
12
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
13
2/14/2018
#WorldofAsphalt
#WorldofAsphalt
#WorldofAsphalt
14
2/14/2018
#WorldofAsphalt
Drove my cost of operation up
Drove my quality down
#WorldofAsphalt
Conclusion If we maintain our machine, we have bettered our chances to achieve quality. If we slow our fpm down, we have bettered our chances to achieve quality. If we communicate with our team regarding the job, we have bettered our chances to achieve quality. If we do all of these things while putting SAFETY first, we WILL achieve quality.
#WorldofAsphalt
15
2/14/2018
Thank You
#WorldofAsphalt
Thank You Session Evaluations/PDH’s
See you again at:
• Professional Development Hours logged in session feedback.
• World of Asphalt 2019
• Complete session feedback in mobile app. • Answer “Yes” to last questions for PDH’s
• February 12-14, 2019 • Indianapolis, IN
• CONEXPO – CON/AGG 2020 • March 10-14, 2020 • Las Vegas, NV • 140+ education sessions
#WorldofAsphalt
16
