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ASPHALT RECYCLING
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- In 2011, Colorado reused 134,000 tons of old asphalt in highway mixes; CDOT estimated the recycled material saved the state about $1.6 million
- Nearly 300 tonnes of unwanted glass were headed for the landfill. Idaho used them to build a highway instead and solved a local landfill crisis
- 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 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 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
- 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 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
- In 2019, scientists tested a diaper-like superabsorbent polymer in lab-made asphalt samples; the water-storing material cooled the specimens by up to 12°CResearchers from China have pioneered a groundbreaking asphalt composite integrated with superabsorbent polymers aimed at cooling city envi...08 Aug, 2026, 07.04 PM IST
- National Highway projects face cost overruns, delays as West Asia war disrupts suppliesIndia's National Highway projects are experiencing 5-8% cost increases and delays due to the West Asia war impacting input costs and supply...25 Mar, 2026, 12.07 AM IST
- Greater Noida plans to use GPS, drones to find out ways to reduce flooding, waterloggingThe Greater Noida Industrial Development Authority (GNIDA) plans to enhance its stormwater network to address inefficiencies and flood-pron...17 Aug, 2023, 02.40 PM IST
- After introducing ingenious plastic-reuse mechanism in road construction, Bengaluru is now falling behind2015 was the last time plastic was used for road-building in Bengaluru, discover ET.02 Sep, 2019, 11.25 AM IST
- Types of concrete: Which type of concrete would be most suitable for your building or construction activity?Concrete is manufactured using natural ingredients. Hence, it is environmentally friendly and recyclable.24 Jun, 2019, 11.46 AM IST
- BBMP to pave the way for recycling through plasticThis is one way that plastic, on a large scale, can be recycled, and the blanket ban on plastics enforced last March be made more meaningfu...05 Jan, 2017, 11.36 AM IST
- BBMP says wet waste will be collected daily and dry waste weeklyThere is a dry waste collection centre for almost every ward.And there are enough kabadiwallas. People can give their dry waste to their do...22 Dec, 2016, 12.49 PM IST
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