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99 Current news about the topic concrete

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World first concept for rechargeable cement-based batteries

Imagine an entire twenty storey concrete building which can store energy like a giant battery

19-May-2021

Thanks to unique research from Chalmers University of Technology, Sweden, such a vision could someday be a reality. Researchers from the Department of Architecture and Civil Engineering recently published an article outlining a new concept for rechargeable batteries - made of cement. The ...

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Concrete without cement?

Simple chemistry will enhance the sustainability of concrete production

16-Apr-2021

Researchers at the Institute of Industrial Science, a part of The University of Tokyo, have developed a new method of producing concrete without cement. They have directly bonded sand particles via a simple reaction in alcohol with a catalyst. This may help both to slash carbon emissions and to ...

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Putting climate-positive business ideas into practice

Start-ups made carbon-​neutral fuels and turning carbon dioxide into stone

14-Jan-2021

More and more ETH Zurich researchers are taking the plunge into entrepreneurship. By launching spin-​offs, they hope to turn their lab findings into solutions that can help stem the rise in atmospheric carbon dioxide. There is no shortage of evidence for what the Fifth Assessment Report of the ...

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A recipe for eco-concrete

A CO2-negative concrete would be a true climate friend

09-Jun-2020

Cement production has to drastically reduce its environmental footprint. Empa researchers are, therefore working on alternative cement recipes that cause significantly fewer emissions or can even bind the greenhouse gas carbon dioxide. It is the most widely used product in the world. Cement is ...

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Bacteria and sand engineered into living concrete

17-Jan-2020

Cement and concrete haven't changed much as technology in over a hundred years, but researchers in Colorado are revolutionizing building materials by literally bringing them to life. The method developed, presented January 15 in the journal Matter, combines sand and bacteria to build a living ...

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Fibers from old tires can improve fire resistance of concrete

21-Feb-2019

A new way of protecting concrete from fire damage using materials recycled from old tyres has been successfully tested by researchers at the University of Sheffield. The team used fibres extracted from the textile reinforcement commonly embedded into tyres to guarantee their performance. Adding ...

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Reinforcement of structures with Memory Steel

24-Oct-2018

So far, the steel reinforcements in concrete structures are mostly prestressed hydraulically. This requires ducts for guiding the tension cables, anchors for force transfer and oil-filled hydraulic jacks. The space requirements of all these apparatuses created the geometric framework conditions ...

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Cementless fly ash binder makes concrete 'green'

Researchers use byproduct from coal-fired power plants to replace Portland cement

22-Jun-2018

Rice University engineers have developed a composite binder made primarily of fly ash, a byproduct of coal-fired power plants, that can replace Portland cement in concrete. The material is cementless and environmentally friendly, according to Rice materials scientist Rouzbeh Shahsavari, who ...

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Combating sulphuric acid corrosion at wastewater plants

Microbial induced concrete corrosion causes massive damage to wastewater plants

26-Feb-2018

Wastewater systems are integral to infrastructure in every community. In an ideal world, they operate smoothly and are long-lasting. But biogenic transformation processes in sewage and water treatment systems are a “natural enemy” of conventional plants, frequently causing damage to concrete and ...

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Weak hydrogen bonds key to strong, tough infrastructure

31-Jan-2018

The right mix of hydrogen bonds in polymer and cement composites is critical to making strong, tough and ductile infrastructure material, according to Rice University scientists who want to mimic the mechanics of mother-of-pearl and similar natural composites with synthetic materials. Seashells ...

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