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SUSTAINABLE CONCRETE
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...- Piyush Goyal urges BRICS to link payment systems, trade in local currenciesIndia's Commerce Minister urged BRICS nations to link payment systems and trade in local currencies. He also called for simplified regulati...
- In 2013, Robert Downey Jr. commissioned Nicolò Bini to create a Malibu Binishell with thin-shell concrete; nine years later, the 6,500-sq-ft home was completedRobert Downey Jr.'s unique guest house took nine years to complete. This unusual structure utilized a Binishell technique involving inflate...
- In 2025, a UK nuclear waste site began installing railway sleepers made from about 90 kilograms of recycled plastic each - their claimed lifespan was 50 to 100 yearsA UK nuclear waste site has installed composite railway sleepers made from recycled plastic. These durable sleepers offer a sustainable alt...
- Ashton Kutcher and Mila Kunis moved into their LA farmhouse months before COVID; after 5 years of construction, its solar system now powers the entire propertyAshton Kutcher and Mila Kunis dedicated five years to meticulously designing their six-acre farmhouse in Los Angeles. Working alongside arc...
- 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 2009, the US Army built recycled plastic bridges for a 71-ton Abrams tank. 1 year later, Fort Eustis opened 2 thermoplastic railroad bridges to replace old timber tooRecycled plastic composite material offers a durable and sustainable alternative for bridge construction. The world's first vehicular bridg...
- 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...
- 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 2016, Texas built RGV Reef from 477 piles of railroad ties and concrete across 1,650 acres off South Padre Island; sonar estimated 24.4 tons of fish biomass thereA groundbreaking artificial reef off the Texas coast now sustains more than twenty-four tons of fish biomass. Constructed from discarded ra...
- New Jersey sank 397 obsolete army tanks and armored vehicles from 1994 to 1997 in 40 to 140 feet of water; a five-year study found 432,000 animals of 145 species per square metre of reef habitatIn a remarkable initiative, obsolete US Army tanks were intentionally submerged off the New Jersey coast, creating vibrant artificial reefs...
- 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...
- 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 baseColorado has made strides in sustainable road maintenance with the successful recycling of old asphalt on US Highway 24. By saving over 40,...
- 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 2020, Southwest University researchers treated rice husks with acid and burned them into ash; replacing 10% of cement with the ash increased compressive strength by 16.22% after 56 daysChinese researchers have found a way to strengthen cement using burnt rice husks. This agricultural waste, when treated and added, signific...
- In 2022, researchers studied sugarcane bagasse ash as a partial cement substitute; lower replacement levels showed better mechanical performance in concreteResearchers are investigating the potential of sugarcane bagasse ash as a sustainable alternative for concrete production. Rich in silica, ...
- In 2023, researchers crushed discarded coconut shells into aggregate substitutes, replacing 10% of coarse aggregate produced 34.8 N/mm² concrete strengthCoconut shells offer a sustainable alternative to gravel in concrete construction. Studies show replacing ten percent of coarse aggregate w...
- A PhD student used shredded baby diapers in a prototype Indonesian house; 27% of its non-structural concrete blocks contained diaper waste, totaling about 3,700 poundsAn extraordinary house in Indonesia has creatively utilized nearly 3,700 pounds of discarded diapers. This unique construction method incor...
- Miami researchers tested concrete that replaced sand with leaded CRT glass; a biopolymer helped limit lead leaching before durability damage raised concernsResearchers explored using toxic CRT glass in concrete mixtures. This hazardous waste contains significant amounts of lead, posing environm...
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