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We have developed a new ecological concrete which can achieve a CO2 emission level below zero by capturing CO2. This concrete is based on two typical features. One of the features of this concrete is using a special admixture (the γ phase of dicalcium silicate: γ-2CaO.SiO2) instead of cement. This material has a very low level of CO2 emissions and hardens the concrete by reacting with CO2. The other...
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