Hillsborough County Florida is using a mix of expanding polyurethane foam and conventional cement grout as a more cost effective means of filling sinkholes. Officials say the mix uses 30 to 40% less grout adding up to a 30% cost savings. The article in the Tampa Tribune did not indicate the contractor or product name that they are using but apparently several agencies in California and other states are using the same material. Story via ASCE SmartBrief.
Geologic Hazards
Huge Sinkhole in Atacama Desert
A sinkhole approximately 32 meters in diameter and roughly 200 meters deep opened up in the Atacama Desert of Chile, near the Alcaparrosa copper mine at the beginning of August 2022. Anytime something like this […]
Rockman's Ramblings
Free Webinar–Geotechnical Aspects of Polyurethane Grout
I’m pleased to announce that I will be a guest speaker at the monthly webinar of URETEK Holdings, an affiliate of GeoPrac sponsor URETEK ICR. I will be presenting on Geotechnical Aspects of Polyurethane Grout, […]
Geologic Hazards
Gannett Fleming Designs Sinkhole Fix for PennDOT
When a sinkhole opened up in Pennsylvania State Route 422 in 2019, Gannett Fleming partnered with PennDOT to accelerate investigation and design and ensure the roadway was fixed and reopened to the public as quickly […]