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RECYCLED CONCRETE AGGREGATE BENEFITS
Atlanta crushed about 200,000 tons of Georgia Dome concrete after the 2017 demolition; the rubble became the base for three new projects on the same downtown siteIn 2017, the iconic Georgia Dome in Atlanta met its fate, resulting in a mountain of concrete debris. Instead of hauling away this rubble, ...
In 2020, Australia built more than 90% of a road project from recycled waste; five million bottles went into a job that cost no more than a standard buildIn 2020, Australia built more than 90% of a road project from recycled waste; five million bottles were used in a Central Coast Council pro...
In 2012, Bellingham used porcelain from 400 recycled toilets to build a roadway, diverting about 5 tons of waste from landfill. It earned the world's first official "Greenroads" certificationCities across the US are embracing creative solutions for eco-friendly infrastructure. In Bellingham, Washington, a unique project utilized...
Boeing Plant 2 became obsolete by 2010 after building B-17s and early 737s; demolition reused nearly 100,000 tons of crushed concrete as backfill on the Seattle siteIn Seattle, the iconic Boeing Plant 2 has been dismantled, with a remarkable recycling initiative repurposing nearly 100,000 tons of concre...
In 2025, Sizewell A sent over 15,000 tonnes of crushed turbine-hall concrete to Sizewell C; the recycled material was used as sub-base beneath new foundationsThe repurposing of old nuclear station concrete has paved the way for innovative construction projects. With over 15,000 metric tons of cru...
In 2014, Minneapolis demolished the Metrodome and diverted more than 80% of the stadium from landfill, including 80,000 tons of concrete and 4,500 tons of steelThe demolition of the Minneapolis Metrodome set a remarkable benchmark, with over eighty percent of its materials recycled, diverting numer...
In 2024, engineers turned 140,000 coffees’ worth of used grounds into concrete; the 30-cubic-metre footpath saved more than 3 tons of sandCoffee concrete: Spent coffee grounds were transformed into biochar for a Pakenham footpath project. This innovation replaced river sand, d...
In 2022, Wales mixed fibres from 4.3 tonnes of used nappies into a highway; the waste replaced asphalt material imported from EuropeWales recently resurfaced part of the A487 highway using fibers from 4.3 tonnes of recycled diapers. Sanitized diaper waste was processed i...
In the year to September 2023, one Australian city used 6,790 litres of waste engine oil to build roads; it became a coating for stone used in road sealsIn the year leading up to September 2023, the City of Greater Geelong transformed thousands of litres of used motor oil into durable public...
In 2021, UMass Chan dismantled part of its First Road garage for a new research building; 8,445 tons of steel and concrete were reclaimed, 99% by weightUMass Chan Medical School in Worcester has set a remarkable precedent by achieving a 99 percent material reclamation rate during their late...
In 2021, Australia's RMIT helped Coles put 900,000 pieces of soft plastic into concrete. 1 year later, another Coles development was set to reuse 6.5 million pieces through PolyrokRMIT University developed Polyrok, a plastic aggregate from recycled soft plastics. This innovative material was first used commercially at...
In 2024, Arizona engineers used 100% recycled glass to widen 23 miles of Interstate 17 at 19 sites, protecting concrete culverts built for a narrower highwayInstead of adding heavy soil and stone above aging concrete drainage structures, engineers used ultra-lightweight foam glass made from recy...
Indian scientists develop a new concrete using human waste to make it significantly stronger than conventional cementScientists have found that biochar made from treated human waste, or faecal sludge, can partially replace cement in concrete and improve it...
In 2019, Victoria's Wyndham City turned 199,000 recycled bottles into a 200-metre footpath. 1 year later, the project had reached 339 metres and delivered 1,700kg in carbon savingsVictoria’s Wyndham City turned 199,000 recycled bottles into a 200-metre footpath in 2019. The project showed how plastic waste could be gi...
In 2022, a Washington State lab study replaced 20% of cement with recycled glass powder; 56-day strength rose 19% with steel milling, while surface resistivity improved 150% with ceramic millingWashington State University engineers are testing recycled glass powder as a cement substitute. This waste material could potentially impro...
Los Angeles recycled old street asphalt with microwaves instead of buying virgin paving material; over 800,000 tons were avoided over 5 years, saving approximately $8 millionLos Angeles has pioneered a groundbreaking method for recycling old asphalt pavement through microwave technology. This inventive technique...
Arkansas recycled old I-30 concrete in place, avoiding more than 95,000 tons of new stone and about $15,000 in truck fuelArkansas has made strides in sustainable development by recycling old concrete on Interstate 30 near Little Rock. The innovative technique ...
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 a 2019 concrete study, replacing up to 30% of sand with waste tyre rubber increased impact resistance but reduced compressive strengthUtilizing discarded tyres in concrete significantly improves impact resistance. The incorporation of rubber allows structures to flex rathe...
In a 2015 Deakin University study, crushed waste glass replaced 30% of concrete sand; after 28 days, the recycled mix was 6% stronger than conventional concreteAustralian researchers found that crushed glass strengthens concrete mixtures effectively. Replacing sand with up to thirty percent recycle...