Market trends for green cements for environmentally friendly concretes (Part 2)

Figure: [5] Marmier, A.

Fig. 10: CO₂ contribution of ACT processes [5]

Figure: [5] Marmier, A.

Figure: Schwenk Zement

Fig. 11: Pilot plant for Celitement

Figure: Schwenk Zement

Figure: K. Scrivener, EPFL

Fig. 12: Strength development of LC3

Figure: K. Scrivener, EPFL

Figure: Cementos Argos

Fig. 13: Rio Claro Plant

Figure: Cementos Argos

Figure: Hoffmann Green Cement

Fig. 14: Production site in Bournezeau

Figure: Hoffmann Green Cement

Figure: Cimpor Global Holdings

Fig. 15: Production site in Cote d’Ivoire

Figure: Cimpor Global Holdings

Green cements are booming because the cement and concrete industry is on a net-zero journey to become carbon-neutral by 2050. What are the latest market trends for green cements and which types of green cement will have a major impact? Some answers will be given in Part 2 of this article (Part 1 see BFT 12/2023).

Figure 10 indicates the energy- and material-related carbon emissions of the various ACTs reviewed [6]. As the production processes of X-clinker and Celitement can be fully electrified, the thermal component of the carbon emissions of these processes can be completely eliminated, depending on the type of electricity used, which will give them a huge benefit in comparison to the other processes when low-carbon cements are required. Nevertheless, the binder characteristics and availability of the raw materials required for the processes also play a major role. The authors [6] have come to the...