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
Troubled Eastern NC Riverfront Convention Center Gets Lifeline from Hayward Baker and TerraThane™ Geotech Foam by NCFI Polyurethanes
MOUNT AIRY, NC—The 12-year-old riverfront Convention Center in New Bern, NC was in trouble. The building’s exterior is supported by pilings driven deep in the ground, but the floors sit directly on the earth and silt of the old riverbed. The land was in-filled by old docks and building debris in the 1970s and settling, erosion, and construction mistakes were taking their toll on the building.
Parts of the floor and patio sunk up to seven inches, cracks and uneven joints in the concrete slab floors were causing walking/tripping hazards, and gaps beneath walls were allowing sound to pass between what were designed as soundproof rooms.
[Editor] Click through for the rest of the press release from NCFI. Disclosure: Hayward Baker is a sponsor of GeoPrac.net. [/Editor]
Failures
Massive Sinkhole in Louisiana’s Bayou Corne
A sinkhole formed at the beginning of August near a brine production operation in Bayou Corne near Baton Rouge, Louisiana. The sinkhole, now referred to as a slurry hole, measures roughly 600 ft by 300 […]
Geologic Hazards
Hayward Baker working on sinkhole problem at Corvette Museum
I heard that Hayward Baker was working on the Corvette Museum sinkhole at GeoCongress, but I finally got official confirmation via this Civil Engineering Magazine article. It’s a great article if you are interested in […]