报告时间：2024年5月29日（星期三）9:00-11:00

报告地点：学术会议中心二楼小报告厅

报 告 人：王家来 教授

工作单位：美国阿拉巴马大学

举办单位：土木与水利工程学院

报告简介：

Concrete can serve as a CO2 sink through a mineralization process, in which CO2 react with calcium-rich minerals in concrete to produce CaCO3 and permanently store CO2. However, the full potential of concrete for CO2 sequestration can’t be reached by existing technologies (limited by diffusivity and reactivity) and existing carbonation technology may lead to durability concerns of the produced concretes. To fully unlock this potential, we propose a new pathway to sequester CO2 into concrete, biomolecule regulated carbonation (BioCarb) method. Unlike any existing methods, the BioCarb method adds CO2 into concrete before mixing through carbonating a cement slurry regulated with a biomolecule, which controls the crystal nucleation, morphology, and phase of the calcium carbonate and disperses the produced CaCO3 nanoparticles. This method increases the CO2 uptake of the cement slurry by at least one order of magnitude in comparison with existing methods.  More importantly, multiple interactions between the carbonate and the cement can be triggered by the metastable CaCO3 produced through BioCarb, significantly enhancing the strength of the produced concrete.

报告人简介：

王家来，美国阿拉巴马大学教授，博士生导师，是先进复合材料、高性能土木工程材料研究领域内的国际一流科学家。担任 NSF(美国国家科学基金会）、NASA(美国国家宇航局)、DOD-ERDC(美国国防部工程研究与发展中心)等多个美国基金委员会的评审专家，ASCE，Construction and Building Materials，Composites Part B： Engineering Journal，Fuel，Materials and Structures 等近50余种权威期刊审稿人。截止目前，已发表 1/2区SCI论文 100余篇。