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RECYCLED ROAD BASE BENEFITS
Oregon’s bridge program diverted 640,162 tons of construction material from landfills; FHWA valued the landfill diversion at $21.3 million across 208 bridges- Colorado rebuilt part of US 24 by reconditioning its old asphalt in place; the $5.7 million project avoided hauling in more than 40,000 tons of new base
- Arkansas recycled old I-30 concrete in place, avoiding more than 95,000 tons of new stone and about $15,000 in truck fuel
- In 2011, Colorado reused 134,000 tons of old asphalt in highway mixes; CDOT estimated the recycled material saved the state about $1.6 millionColorado's innovative approach to roadway construction has resulted in significant savings, repurposing old asphalt in new projects. By emb...05 Sep, 2026, 02.20 PM IST
- 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...04 Sep, 2026, 07.00 PM IST
- In 1980, New Jersey reused 14,000 tons of milled U.S. 1 asphalt for U.S. 130 shoulders, saving $50,346 and 12,753 tons of virgin stoneNew Jersey's engineering team successfully transformed milled road surfaces into functional highway shoulders, achieving significant saving...04 Sep, 2026, 03.50 PM IST
- 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...04 Sep, 2026, 02.20 PM IST
- 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 ...04 Sep, 2026, 02.10 PM IST
- 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...04 Sep, 2026, 01.10 PM IST
- In 2002, San Francisco pledged to reach zero waste by 2020. 18 years later, it fell short but still diverted 80% of waste from landfills and recycled 600 tonnes each daySan Francisco pursued ambitious waste reduction goals, aiming for zero waste by 2020. Mandatory recycling and composting ordinances were en...03 Sep, 2026, 06.03 PM IST
- In 2014, Royal Society of Chemistry scientists extracted D-limonene from waste orange peels at 96% purity, turning citrus processing waste into bio-based asphalt modifiersCitrus waste, previously considered rubbish, is now transformed into a valuable resource. D-limonene, derived from orange peels, is emergin...03 Sep, 2026, 04.00 PM IST
- In 2026, Texas engineers mixed 4.5 tons of waste plastic into nearly a mile of road; the recycled material replaced 8% to 10% of petroleum-based bitumenInnovative researchers are pioneering the use of recycled plastic to improve the durability of asphalt roads. By substituting a portion of ...03 Sep, 2026, 02.28 PM IST
- In 2011, ICE Chicago relied on 1 recycling bin for 200 workers; a hybrid system of 4 centers and desk boxes raised recycling to 38% and participation to 85%The U.S. Immigration and Customs Enforcement Chicago Field Office enhanced its recycling program. They established four recycling centers a...03 Sep, 2026, 12.50 AM IST
- In 2000, California packed 6,627 tons of shredded tires beneath Dixon Landing Road; the lightweight fill saved an estimated $477,000In Milpitas, California, an innovative on-ramp has been constructed using shredded tires as a lightweight fill material. This eco-friendly ...02 Sep, 2026, 06.40 PM IST
- In 2022, Hawaii used 195,000 plastic bottles to rebuild a road. Engineers found an alternative use for recycling plastic waste, but there's a catchHawaii's officials have embarked on an innovative experiment to blend recycled plastic into road asphalt, effectively repurposing nearly 20...02 Sep, 2026, 03.22 PM IST
- Deeptech firm Minimac Systems raises Rs 30 crore led by Zerodha's RainmatterMinimac, founded by Anshuman Agrawal, has been bootstrapped and profitable since its inception, the company said. The company operates acro...01 Sep, 2026, 03.32 PM IST
- 32,600 used tires did not go to a landfill. Instead, Michigan turned them into a 1.15-mile road in Clare County that can also reduce traffic noise. The next target is Detroit roadsMichigan is turning discarded tires into road-building material, with 32,600 passenger tire equivalents reused on a 1.15-mile stretch of Ha...31 Aug, 2026, 03.59 PM IST
- In 2024, researchers tested crushed waste concrete as a base for Chesapeake oyster reefs; oyster spat grew and survived with no detectable hydrocarbon leachingIn the Chesapeake Bay, recycled concrete rubble is proving to be a nursery for young oysters. Scientists have discovered that this crushed ...28 Aug, 2026, 03.20 PM IST
- In 2021, RMIT tested shredded face masks with recycled concrete for road bases; 1 kilometer could use 3 million masks and divert 93 tonnes from landfillEngineers from Australia have introduced an innovative strategy for converting used face masks into construction materials for roads. This ...28 Aug, 2026, 01.50 PM IST
- Americans discard about 15 million tons of asphalt roof shingles a year, but old roofs can be ground up and put straight back into the roads people drive onMillions of tons of asphalt shingles are disposed of annually in the United States. These old roofing materials can be processed into recyc...25 Aug, 2026, 01.20 PM IST
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