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.
Press Releases
Grouting project to protect Snake River Plain Aquifer completed ahead of schedule
September 29, 2010 — The Idaho Cleanup Project safely completed a remedial action five weeks ahead of schedule that protects the Snake River Plain Aquifer by grouting buried waste at the U.S. Department of Energy’s […]
Geologic Hazards
Huge Florida sinkhole forces authorities to demolish two homes
A large sinkhole near Dunedin, Florida destroyed two homes, but the occupants were not injured. The 90′ diameter by 50′ deep sinkhole opened up in an area of Florida that is prone to sinkhole activity. […]
Failures
Video of Car Swallowed by Sinkhole Related to Tunneling in Cairo, Egypt
On September 3, a sinkhole opened up on a downtown Cairo street, swallowing the car pictured here. According to the description accompanying the video uploaded to YouTube by TheDailyNewsEgypt, the sinkhole was related to tunneling activities for the Cairo Metro line that is currently under construction. Click through for the video. […]