Replacing Asphalt base and/or subbase course for asphalt repair
Replacing Asphalt base and/or subbase course for asphalt repair
(OP)
I am working on an asphalt repair/replacement project where we need to replace about 19,000 SY of asphalt between airfield shoulders and non-heavy equipment parking. The asphalt shows moderate alligator cracks however the asphalt is not under heavy use and is at least 10 years old. I suspect that much of the cracking is from aging as the location is southern california where the temperatures in the summer reach above 95F regularly. I am wondering if full base and subbase course replacement is really necessary or if removal of the asphalt and scarifying and recompacting the base course would be enough. Any suggestions for repair options that I may not have thought about?
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RE: Replacing Asphalt base and/or subbase course for asphalt repair
Have you thought about recycling/pulverizing the existing asphalt?
RE: Replacing Asphalt base and/or subbase course for asphalt repair
Recycling is good way to go on this.
RE: Replacing Asphalt base and/or subbase course for asphalt repair
http://www.superpave.psu.edu/portals/necept/assets...
http://www.civil.uminho.pt/transportinfra/publicat...
http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_w...
http://classes.engr.oregonstate.edu/cce/spring2014...
We had the issue with new pavement in India when straight asphalt was used as the binder - polyer modified behaved better.
RE: Replacing Asphalt base and/or subbase course for asphalt repair
http://www.transport-links.org/transport_links/fil...
RE: Replacing Asphalt base and/or subbase course for asphalt repair
I agree with the above comments though more geotech may be required. Clegg testing could also be inconjustion with benkelem beam testing. This would be substantially cheaper and could be used as supplementary test data for assessment