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.
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
What Makes a Sinkhole a Sinkhole?
The Florida Geological Survey probably deals with more sinkholes than most agencies. The most frequent geologic cause of sinkholes is dissolution of limestone and other soluble rocks and the collapse of the soil cover over […]
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 […]