期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 409, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2023.134057
关键词
Cascade system; Kinetic curve; Production rate
Cement is widely used globally, but lack of maintenance in concrete structures increases the risk of collapse. This study explores the use of biomineralizing bacteria to recover structures, with promising results indicating an eco-friendly option to reduce greenhouse gas emissions.
Cement is the most widely used material in the world. However, a lack of maintenance of concrete structures increases the collapse danger. Against this situation, studies to recover structures are developed using biomineralizing bacteria. The aim of this study was to determine the limiting step in a prototype Cascade System for Biomineralization in Cement (CSBC) comparing crystallization to biochemical reaction by Bacillus cereus. The similar conditions of crystallization and bioreaction indicated that crystallization is the limiting step, with a carbonate production rate of 0.19 mg/h. The results obtained indicated an eco-friendly option to reduce greenhouse gas emissions.
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