Posted by Richard on 25 Sep 2019 /
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The cement sector accounts for 7% of all man-made CO2 emissions, more than all 202 million trucks and more than the steel sector.
Cement, the third-most-used substance in the world after air and water, is key to the construction of buildings and infrastructure.
According to the International Energy Agency, cement is responsible for 7% of global CO2 emissions.
‘Greener’ concrete
Technologies to produce greener concrete are also in the development phase.
“We use the coal fly ash (industrial byproduct from coal-fired power plants) to replace cement by 100%. In other words, we successfully avoid the use of cement in concrete; so this should greatly decrease total emissions during concrete production,” said Xianming Shi, associate professor at Washington State University.
LafargeHolcim and HeidelbergCement, the top two cement companies in Europe whose strongest competitors are based in China and India, recently presented climate-protecting measures.
“We invested 160 million Swiss francs (€147 million, $162 million) in Europe to reduce CO2 emissions in the next three years
Researchers in Germany have developed celitement, a new form of cement that emits far less CO2 in the production process
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