A feasibility assessment of low-carbon concrete containing calcined clay and granite powder or dolomitic limestone in Burkina Faso.

ABSTRACT: The development of low-carbon concrete (LCC) is crucial for reducing the large carbon footprint of the construction sector, in countries like Burkina Faso where there is a lack of high-purity limestone to produce clinker, resulting in the importation of clinker, which exists in dolomitic limestone form. This study assesses the feasibility of producing such LCC in Burkina Faso by utilizing local resources. It designs a class C25/30 concrete, containing 330 kg of cement per m³, where ordinary Portland cement was partially replaced (up to 50%) with a mix of calcined metakaolin clay (30%) and granite powder or dolomitic limestone (10-20%). Results show that the synergy between metakaolin and granite powder significantly improves performance. The optimal mixture, 60C30M10G, achieved

SUBMITTER: Nshimiyimana P 

PROVIDER: S-EPMC12749369 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature