摘要: |
Repairs to a crucial roadway using aggregates made from recycled glass and polymeric geosynthetic reinforcements have allowed commuters to get back on the road sooner than expected. An elevated section of Interstate 95 that passes through northeast Philadelphia, Pa., collapsed on June 11 after a fuel tanker crashed onto the road below killing its driver. The vehicle burst into flames, weakening the steel beams supporting the bridge and causing it to collapse. Three lanes of traffic were closed in both directions, with authorities suggesting it would take months to repair. But less than two weeks after the incident, the highway reopened thanks to the use of backfill made from recycled glass, reinforced with polymeric geogrids. This has enabled a temporary fix until a permanent solution follows. |