I have used both methods, concrete base and 2NS sand base in Michigan. Lately, we have done quite a few projects using colored stamped concrete. Much cheaper. Color stains can penetrate 1/4". Lots of resources on the web. You could use an expansion joint along your utility trench.
For a marina project, we have boat slips with 8" to 12" rip-rap on the land side (end of slip). Currently, the rip-rap slope is 1:2. Can we make steeper, say 1:1-1/2, or even 1:1?
Does anyone know the ASSHTO SN for crushed in-place asphalt?
I'm rehabilitating an existing parking lot in good shape, minor surface cracks only, by crushing 2" of existing pavement. 5" to 6" of existing agg. base will remain in place untouched, and overlaying with 2" of new HMA. Any thoughts...
I have water flowing through vertical bars with a defined unsupported length. How do I prevent resonant vibrations induced by flow not less than 2.5 times the vortex shedding velocity? In other words, what range must the frequency be within to insure that I won't have resonant vibration of the...
A local contractor contacted me about setting up a permanent dewatering system for a church site. Currently ground water seeps through cracks in a low area of the parking lot. Can anyone help with a permanent dewatering system to lower the watertable?
