+1 vote

My question is that can we use greenhouse gases in any stage of concrete production by which the amount of greenhouse gases in the air reduces and the process carried out by greenhouse gases in concrete, any stage or material of concrete production can be replaced?

asked Mar 2, 2019 in Civil Engineering by Mitesh Chandegara | 101 views

2 Answers

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The high contents of CO 2 released by its production (about 1 ton of CO 2 per ton of Portland cement) are mainly due to the grinding and burning processes, which require temperatures of about 1450 °C, in addition to the chemical decomposition of CaCO 3, one of the main raw materials. As a result, Portland cement accounts for >80% of the CO 2 emissions of concrete production, while the aggregates account for about 16%. An efficient way to reduce the cement content in concrete is by partially replacing the clinker by supplementary cementitious materials (SCMs)

Ekeeda - Production Engineering

answered Oct 4, 2019 by anonymous
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Cement manufacture contributes greenhouse gases both directly through the productions of carbon dioxide when calcium carbonate is thermally decomposed producing lime, and carbon dioxide, and also through the use 

answered Apr 24 by shivam3685