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ROAD CONSTRUCTION
In 1972, FHWA used 5 inches of scrubber waste in a parking-area base at Washington's Dulles Airport. 2 years later, wet weather caused the experimental base to soften and be replacedEarly tests explored scrubber waste for road bases and subbases. Florida projects between 1977 and 1989 showed highly satisfactory performa...- Maine buried 20,000 old tires beneath a road and they helped against frost damage. Now engineers are exploring them for walls, highways and moreIn an innovative engineering experiment, shredded tires were utilized in road construction, effectively tackling both durability and tire w...
- In 2021, Victoria used 2,100 tons of recycled road base to rebuild the Hume Freeway. 5 years later, its 850-metre stretch had turned waste into a longer-lasting road tooPlastic bags and glass bottles usually end up in the trash. In Australia, some became part of a highway instead. Engineers rebuilt an 850-m...
- Nearly 300 tonnes of unwanted glass were headed for the landfill. Idaho used them to build a highway instead and solved a local landfill crisisEngineers have ingeniously repurposed discarded glass as a foundation material for highways, utilizing around 300 tonnes of crushed glass c...
- In 2021, Missouri added just 1% waste plastic to a two-mile road, that tiny share consumed 10 tons, equal to 750,000 soda bottlesIn 2021, Missouri transportation officials discussed a road project that tested recycled plastic in asphalt pavement. Engineers from the Un...
- Florida turned scrubber waste into road base in 12 projects by 1989; 100,000 tons earned highly satisfactory ratings, transforming an industrial byproduct into useful road baseFlorida utilized processed FGD scrubber material in twelve road-base projects between 1977 and 1989. This material demonstrated satisfactor...
- In 2021, Shanghai used 6,000 milk bottles to fight plastic waste; the result became China's 1st plastic road, turning hard-to-recycle bottles into useful paving materialShanghai’s “Milk Bottle Road” demonstrates how difficult-to-recycle plastic can be redirected toward useful infrastructure. Developed throu...
- In 1990, Waupaca Foundry supplied 20,000 tons of used sand for a Wisconsin highway pilot project. 12 years later, its next contract called for 80,000 tons for Highway 10A highway in Wisconsin became an unexpected test ground for recycled industrial sand. In 1990, Waupaca Foundry supplied about 20,000 tons o...
- In 2023, Australia's Sydney put 120,000 glass jars and 200 tonnes of old asphalt on Clarence Street. 1 year later, its program recycled 670,000 glass jars into asphalt across the citySydney is using recycled materials in road renewal, giving glass jars and reclaimed asphalt a new purpose instead of sending them to landfi...
- In 1990, New York City began recycling waste glass into street pavement. 5 years later, the city had reused 250,000 tons of glass in resurfacing projects across the cityNew York City pioneered waste glass use in road construction between 1990 and 1995. Research examined crushed glass as an asphalt aggregate...
- In 2022, Ontario's Durham Region used 400 tonnes of glass in a 3.6-km road pilot. 4 years later, it could reuse 240 tonnes of PET each year across Durham roads under its planDurham Region is testing recycled materials for road construction. Recycled glass and plastic will be used in a road rebuilding project. Th...
- In 2019, Australia's Central Coast Council used 631,000 plastic bags, 117,000 bottles and 14,400 printer cartridges on a 600-metre road. 7 years later, the project remains a striking waste-to-road example across the regionCentral Coast Council is now using recycled soft plastic and glass in road surfacing. This innovative product, Reconophalt, diverts thousan...
- A 1998 Texas experiment mixed printer toner into asphalt, and tests found it could make the mix strongerA recent study reveals that adding waste toner to asphalt binder can significantly improve its performance. With just a ten percent additio...
- Curing our broken, disturbing roads: NHAI mandates AI-based machine control for highway projectsNHAI mandates AI-based machine control for highway construction projects. This technology uses sensors and real-time data for precise road ...
- In 2009, Illinois used 38,881 tons of fly ash in highway construction; IDOT reported spending $1.75 million while reducing landfill use and cement demandIllinois highways are increasingly integrating fly ash, a byproduct of coal combustion, as a sustainable option for road construction. This...
- In 1997, Abilene collected 240 tons of waste glass for Antilley Road; Dyess Air Force Base crushed the glass at $9 a ton for two 750-foot test sectionsIn Abilene, Texas, an innovative project has integrated crushed glass from recycled bottles and jars into road construction. By blending gl...
- In 2009, Illinois used an estimated 284,715 tons of recycled concrete material in highway construction; IDOT spent about $3.18 million on the material for embankments, bases, and subbasesIn Illinois, the innovative approach of repurposing aged concrete for highway projects is not just cost-effective but also environmentally ...
- In 1989, Kentucky engineers built a 750-foot road base using about 80 tons of ponded fly ash; the 11% ash section was reported to perform well against the conventional controlAn experimental road base in Kentucky utilized coal plant residue in 1988. Fly ash has been a federal construction material since the 1970s...
- Bitumen deficit bridged, but price problem persists; India's roads set to face a real test this winterAs prices of bitumen continue to be on the higher side, road construction companies are watching the winter construction season closely. Ev...
- L&T partners with French firm to market specialised road construction equipment in IndiaLarsen & Toubro has joined forces with FAYAT Road Equipment to promote BOMAG machinery within India. This partnership not only expands the ...
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