When an existing concrete t-beam bridge was widened about 25 years ago, a variable depth un-reinforced latex modified concrete overlay was placed over the existing t-beam bridge. The depth of the overlay ranges and is about 5" thick at it's greatest depth. Today there is visible spider...
What is the average cost per day to run a profilograph measuring device?
One is needed for a mill and overlay project. The profilograph testing will be needed at the end of each working shift to measure the ride quality of the paving placed on that particular day prior to opening back up to...
What is the average cost per day to run a profilograph measuring device?
One is needed for a mill and overlay project. The profilograph testing will be needed at the end of each working shift to measure the ride quality of the paving placed on that particular day prior to opening back up to...
I’m working on a project that has a paving spec of 4” BCBC and 2” of wearing. The wearing course is specified as 12.5mm superpave. It has been requested to substitute the 12.5mm superpave with a 9.5mm superpave mix. What are the advantages/disadvantages to using a mix with a finer aggregate...
I just want to get an idea of what everyone uses for a tri-axle truck volume.
How many Cubic Yards of dirt do you figure per tri-xle truck load? I'm looking for an in situ volume of dirt. And by dirt I mean a well to finely graded material, not bouldery.
Also, I'm located in Pennsylvania. I...
I'm working on a project where we are installing concrete piers that are drilled approx 24 - 25' below grade. The drilled caisson portion of the pier has a signficant amount of water in the hole. The contractor would like to pour the piers using the tremie method and pump the water from the...
