Geosynthetics October/November 2023 - 8

UPDATE
Crucial I-95 road link fixed in weeks
thanks to geosynthetics
R
epairs 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.
As time was of the essence, an interim roadway was created
FIGURE 1 Crews work around the clock to complete the I-95 rebuild
under an expedited timeline using foamed glass aggregates from
Aero Aggregates. Photo courtesy of Aero Aggregates
using 2,000 tons of Aero Aggregates' ultra-lightweight foamed glass
aggregate (UL-FGA) made from 100% postconsumer recycled
glass and manufactured by dry-process. This backfill material was
used in a 100-by-150-foot (30-by-46-meter) area of underpass,
raising it to surface level.
However, the sustainable, ultra-lightweight mass required vertical
faces because of the highly constrained available space. This
was when polymeric geogrids came into play, as they provided the
required stability to the lightweight vertical mass. This innovative
combination of sustainable lightweight aggregates and geosynthetic
reinforcements was constructed within days. After paving,
traffic could again use at least part of this key artery, which links
major cities on the U.S. Eastern Seaboard.
The UL-FGA mass is up to 90% lighter than quarried aggregates,
meaning it needs fewer road journeys to transport it to the
site, limiting CO2 and greenhouse gases.
The reinforcements used to keep this lightweight mass stable
FIGURE 2 The reinforcements used to keep this lightweight mass
stable were provided by HUESKER North America's Fortrac T high
tenacity polyester geogrid. Photo courtesy of HUESKER
8
Geosynthetics | October November 2023
were provided by HUESKER North America's Fortrac T high
tenacity polyester geogrid. Ultimately, this combination of innovative
materials rendered the reinforced vertical wall that was needed
to hold up the temporary lanes. Jobsite Products' welded wire
forms were used to contain the recycled glass aggregate.

Geosynthetics October/November 2023

Table of Contents for the Digital Edition of Geosynthetics October/November 2023

Geosynthetics October/November 2023 - Cover1
Geosynthetics October/November 2023 - Cover2
Geosynthetics October/November 2023 - 1
Geosynthetics October/November 2023 - 2
Geosynthetics October/November 2023 - 3
Geosynthetics October/November 2023 - 4
Geosynthetics October/November 2023 - 5
Geosynthetics October/November 2023 - 6
Geosynthetics October/November 2023 - 7
Geosynthetics October/November 2023 - 8
Geosynthetics October/November 2023 - 9
Geosynthetics October/November 2023 - 10
Geosynthetics October/November 2023 - 11
Geosynthetics October/November 2023 - 12
Geosynthetics October/November 2023 - 13
Geosynthetics October/November 2023 - 14
Geosynthetics October/November 2023 - 15
Geosynthetics October/November 2023 - 16
Geosynthetics October/November 2023 - 17
Geosynthetics October/November 2023 - 18
Geosynthetics October/November 2023 - 19
Geosynthetics October/November 2023 - 20
Geosynthetics October/November 2023 - 21
Geosynthetics October/November 2023 - 22
Geosynthetics October/November 2023 - 23
Geosynthetics October/November 2023 - 24
Geosynthetics October/November 2023 - 25
Geosynthetics October/November 2023 - 26
Geosynthetics October/November 2023 - 27
Geosynthetics October/November 2023 - 28
Geosynthetics October/November 2023 - 29
Geosynthetics October/November 2023 - 30
Geosynthetics October/November 2023 - 31
Geosynthetics October/November 2023 - 32
Geosynthetics October/November 2023 - 33
Geosynthetics October/November 2023 - 34
Geosynthetics October/November 2023 - 35
Geosynthetics October/November 2023 - 36
Geosynthetics October/November 2023 - 37
Geosynthetics October/November 2023 - 38
Geosynthetics October/November 2023 - 39
Geosynthetics October/November 2023 - 40
Geosynthetics October/November 2023 - 41
Geosynthetics October/November 2023 - 42
Geosynthetics October/November 2023 - 43
Geosynthetics October/November 2023 - 44
Geosynthetics October/November 2023 - Cover3
Geosynthetics October/November 2023 - Cover4
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https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-july-august-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-case-studies-guide-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-april-may-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-february-march-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-december-2023-january-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2023
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https://www.nxtbook.com/ata/geosynthetics/geosynthetics-june-july-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-april-may-2023
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https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-april-may-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-february-march-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-december-2021-january-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-october-november-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-august-september-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-june-july-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-april-may-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-february-march-2021
https://www.nxtbook.com/ifai/geosynthetics/1220GS
https://www.nxtbook.com/ifai/geosynthetics/1020GS
https://www.nxtbook.com/ifai/geosynthetics/0820GS
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https://www.nxtbook.com/ifai/geosynthetics/1018GS
https://www.nxtbook.com/ifai/geosynthetics/0818GS
https://www.nxtbook.com/ifai/geosynthetics/0618GS
https://www.nxtbook.com/ifai/geosynthetics/0418GS
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