What this concrete sample could reveal about condo collapse
Allyn Kilsheimer, the structural engineer hired by the city of Surfside, Florida, to investigate the collapse of Champlain Towers South, took CNN's Rosa Flores on a tour of sister building Champlain Tours North. Crews pulled samples of concrete for testing to determine whether it was a factor in the south tower's fall.
02:35 - Source: CNN
Surfside condo collapse 15 videos
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What this concrete sample could reveal about condo collapse
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The damaged remaining structure at the Champlain Towers South condo building collapses in a controlled demolition, Sunday, July 4, 2021, in Surfside, Fla. The decision to demolish the Surfside building came after concerns mounted that the damaged structure was at risk of falling, endangering the crews below and preventing them from operating in some areas.(AP Photo/Lynne Sladky)
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US President Joe Biden speaks about the collapse of the 12-story Champlain Towers South condo building last week in Surfside, Florida, following a meeting with families of victims in Miami, Florida, July 1, 2021.
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SURFSIDE, FLORIDA - JUNE 28: Search and Rescue teams look for possible survivors and to recover remains in the partially collapsed 12-story Champlain Towers South condo building on June 28, 2021 in Surfside, Florida. Over one hundred people are being reported as missing as the search-and-rescue effort continues. (Photo by Joe Raedle/Getty Images)
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SURFSIDE, FLORIDA - JUNE 24:  In this aerial view, search and rescue personnel work after the partial collapse of the 12-story Champlain Towers South condo building on June 24, 2021 in Surfside, Florida. It is unknown at this time how many people were injured as search-and-rescue effort continues with rescue crews from across Miami-Dade and Broward counties. (Photo by Joe Raedle/Getty Images)
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