Can bismuth prevent oil leaks and save Norwegians billions?
Over the next 25 years, as the world shifts away from fossil fuels, the oil and gas wells that have sustained the fossil fuel age will have to be plugged.
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Over the next 25 years, as the world shifts away from fossil fuels, the oil and gas wells that have sustained the fossil fuel age will have to be plugged.
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Aside from water, concrete is the most-used material in the world, with about 14 billion cubic meters being used every year. Of that, 40% of that is used to build places for people to live.
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It's a major contributor to climate change—the way buildings and roads are made with concrete. It's also a problem that's growing as more of the world develops. So the race has been on to find solutions for a material that's ...
Apr 12, 2024
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The construction sector today faces several challenges. Natural sand is fast becoming a scarce resource—we might run out of it by 2050. Carbon dioxide emissions, especially from manufacturing cement or fired clay bricks, ...
Mar 27, 2024
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In 2014, hundreds of Angelenos gathered downtown to watch more than 2,000 trucks pour concrete into a vast hole. During that event, Los Angeles set a world record: 80 million pounds of concrete were laid down over 18 straight ...
Feb 22, 2024
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To achieve the goal of a climate-neutral Switzerland by 2050, strategies and processes with a negative CO2 balance are necessary. These so-called negative emission technologies (NET) are intended to counterbalance the remaining ...
Jan 8, 2024
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High carbon emitting businesses in Asia will see consistent negative profits if they fail to decarbonize.
Dec 4, 2023
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It's tough for the cement and lime business to make its important products without generating high emissions. So, the industry is investing in research and innovative pathways to reduce its hard-to-abate emissions.
Nov 30, 2023
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If you want to make more sustainable and environmentally friendly concrete, you're going to need some sugar. Sort of.
Nov 28, 2023
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ETH researchers are developing a low-carbon cement with a significantly lower embodied CO2 content than traditional cement. The Ultra Green Concrete project aims to make low-carbon, high-performance concrete widely accessible.
Nov 10, 2023
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In the most general sense of the word, a cement is a binder, a substance which sets and hardens independently, and can bind other materials together. The word "cement" traces to the Romans, who used the term "opus caementicium" to describe masonry which resembled concrete and was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick additives which were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, cäment and cement. Cements used in construction are characterized as hydraulic or non-hydraulic.
The most important use of cement is the production of mortar and concrete - the bonding of natural or artificial aggregates to form a strong building material which is durable in the face of normal environmental effects.
Cement should not be confused with concrete because the term cement explicitly refers to the dry powder substance. Upon the addition of water and/or additives the cement mixture is referred to as concrete, especially if aggregates have been added.
This text uses material from Wikipedia, licensed under CC BY-SA