05-15-2017, 10:55 AM
Historically, BSTs have been in use since the 1920s, primarily on low volume gravel roads. BSTs are increasingly in use as a preventative maintenance procedure on flexible pavements of good structure.
http://www.pavementinteractive.org/bitum...reatments/
Through that webpage I found a detailed manual about chip sealing from Minnesota DOT https://www.lrrb.org/pdf/200634.pdf where you can learn more than you ever wanted to know about the process and problems.
It's recommended that a double BST treatment is used for rural roads https://www.youtube.com/watch?v=o_t9xVEeTf0
And I also stumbled upon the EPA's 10 points to consider whether to pave a gravel road, seal it, etc. According to this pdf about paving, "The ten answers taken together provide a framework for careful decision making."
https://www.epa.gov/sites/production/fil...appd_0.pdf
It was interesting to see that double chip seal is estimated to have a 6 year life as one of the cost considerations.
http://www.pavementinteractive.org/bitum...reatments/
Through that webpage I found a detailed manual about chip sealing from Minnesota DOT https://www.lrrb.org/pdf/200634.pdf where you can learn more than you ever wanted to know about the process and problems.
It's recommended that a double BST treatment is used for rural roads https://www.youtube.com/watch?v=o_t9xVEeTf0
And I also stumbled upon the EPA's 10 points to consider whether to pave a gravel road, seal it, etc. According to this pdf about paving, "The ten answers taken together provide a framework for careful decision making."
https://www.epa.gov/sites/production/fil...appd_0.pdf
It was interesting to see that double chip seal is estimated to have a 6 year life as one of the cost considerations.