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- Leonardo Negr\u00e3o ORCHID ID<\/a>, ResearchGate<\/a><\/li>
- Research area(s): Mineralogy, Industrial Minerals, Mineral deposits, Geology<\/li>
- Institute of Geosciences and Geography (link<\/a>), MLU<\/li><\/ul>\n\n\n\n
Field(s) of expertise during doctoral studies:<\/h4>\n\n\n\n
- Applied mineralogy of cement<\/li>
- Characterization of geological materials<\/li><\/ul>\n\n\n\n\n\n\n\n
Curriculum Vitae<\/h4>\n\n\n\n
- Research assistant \/ scholarship holder\u00a0<\/li>
- Doctoral studies in the\u00a0group\u00a0Mineralogy\/Geochemistry\u00a0of\u00a0Prof. Dr. Herbert P\u00f6llmann\u00a0at MLU<\/li>
- Teaching assistant at German University of Technology in Oman, 2018<\/li>
- Master in Geochemistry at Federal University of Par\u00e1 in 2015<\/li><\/ul>\n\n\n\n
Challenges, rewards and contribution<\/h4>\n\n\n\n
Q: What was your most important contribution to the publication?<\/em>
A: The most important contribution was showing that a new type of cement could be produced using mining residues, and in a more sustainable way reducing CO2<\/sub> emission and energy consumption significantly. Moreover, our work shows an environmental-friendly alternative for two important and essential industrial activities: mining and cement production.<\/p>\n\n\n\nQ: What was challenging and what was a rewarding moment during your work presented in the publication?<\/em>
A: Diverse technical challenges appeared when producing and testing the new cement, but they were solved thanks to the teamwork and intensive discussion in our research group.<\/p>\n\n\n\nSignificance of publication<\/h4>\n\n\n\n
Researchers at the Martin Luther University Halle-Wittenberg and the Brazilian University of Par\u00e1 have developed a climate-friendly alternative to conventional cement. Carbon dioxide (CO2<\/sub>) emissions can be reduced during production by at least one-third when a previously unused overburden from bauxite mining is used as a raw material. The alternative was found to be just as stable as the traditional Portland cement.<\/p>\n\n\n\n
from press release no. 114\/2021<\/a> of August 18, 2021.<\/p>\n\n\n\n
Related publication<\/h4>\n\n\n\n
L.B.A. Negr\u00e3o<\/strong>, H. P\u00f6llmann, M.L. da Costa,
Production of low-CO2 cements using abundant bauxite overburden “Belterra Clay”<\/em>
Sustainable Materials and Technologies 29<\/strong>, e00299 (2021)
doi: 10.1016\/j.susmat.2021.e00299<\/a><\/p>\n\n\n\nAbout this profile<\/h4>\n\n\n\n
Doctoral students contribute significantly to publications highlighted by the MLU press office in many cases. These early stage researchers and their work in connection with the publication are in the focus of these profiles. Please check further doctoral student’s profiles<\/a>.<\/p>\n\n\n\n