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GRAVEL REPLACEMENT IN CONCRETE
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...
- In an Australian study, waste glass replaced up to 60% of river sand in concrete; the recycled mix gained strength and resisted chloride penetrationEngineers in Australia have found that substituting sand with waste glass in concrete mixes can be beneficial. By using up to sixty percent...
- By the mid-2010s, California agencies had placed more than 200,000 tons of gravel below Keswick Dam, restoring egg-laying habitat for endangered salmonIn an initiative aimed at revitalizing the spawning grounds for the endangered winter-run Chinook salmon, California has been transporting ...
- By the mid-2010s, California agencies had placed more than 200,000 tons of gravel below Keswick Dam, restoring egg-laying habitat for endangered salmonThe construction of dams along the Sacramento River hindered the natural flow of gravel that is essential for salmon spawning. Efforts are ...
- Saudi Arabia is covered in sand, yet it imports millions of tons every year, and the reason lies in a tiny detail hidden in every grainSaudi Arabia imports sand from Australia for its massive construction projects. Desert sand is unsuitable for building concrete. River sand...
- Australian researchers turn morning coffee waste into greener concreteConcrete production involves mixing sand and gravel with cement and water. It is a major producer of greenhouse gases, responsible for arou...
- In Benin, Voodoo's birthplace, believers bemoan steady shrinkage of forests they revere as sacredFor many people in Benin, the forests empowered them before they were born, or in the first months of their lives. Barren women performed V...
- War, AI and climate change shake up $32 trillion in global tradeA transformation in world trade today is being led various unrelated factors including Artificial Intelligence, the Ukraine-Russia war, and...
- Is it green, or forever toxic? Nuclear rift at climate talksAs negotiators plot out how to fuel the world while also reducing carbon emissions at climate talks in Scotland, nuclear power is a central...
- Road Construction Machines: Brief history of roadways and types of equipment used in modern-day road constructionIndia’s infrastructure dreams, be it projects undertaken by the government, builders or individuals, would require the use of best in class...
- Part of Thames may be closed for UK Parliament repairsPart of the River Thames could be closed off when the multi-billion pound renovation of Britain's Parliament gets underway.
- From coal dust to carbon creditsScientists at University of New South Wales have turned the ash waste from coal-fired power stations into a global environmental solution w...
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