zero-CO2 cemeNt ThRough cArBonation of cAlcium Silicates and aluminateS (Contrabass)

违禁品：通过硅酸钙和铝酸盐碳酸化的零二氧化碳水泥。我们生活在一个水泥的世界里。根据全球水泥和混凝土协会（GCCA）的数据，水泥的消耗量约为每秒150吨，约占二氧化碳总排放量的8%，占工业能源消耗的7%。为了减轻混凝土对环境的负面影响，碳捕集与利用（CCU）是最佳的可用策略：gcca估计，CCU技术将代表到2050年达到净零工业目标所需的二氧化碳减排量的42%。CONTRABASS MSCA-DN将在此框架下开展工作，在实现零二氧化碳水泥和混凝土生产的道路上，建立一个高质量的博士网络（DN），以研究控制熟料相和水泥膏体碳化的基本物理化学过程，以及随后形成的碳酸钙水泥（CCCs）。熟料和水泥的碳化能力是众所周知的，但为了在2050年之前全面实施CCCs，迫切需要对碳化过程的基础知识。在这种情况下，CONTRABASS DN的目标是通过加速碳酸钙水泥的实施，发展基础知识，实践知识和一代训练有素的专家来克服我们的工业和学术界合作伙伴确定的主要挑战，为全球减少二氧化碳排放做出贡献。CONTRABASS有5个主要目标：确定熟料组分，特别是铝酸钙的碳化机理。了解C-S-H凝胶和水泥浆体的碳化过程。揭示影响CaCO3多态性、成核和生长速率的因素。建立碳化热力学和反应输运模型数据库。有效地向社会、媒体和政策制定者宣传CCCs的好处

CONTRABASS: zero-CO2 cemeNt ThRough cArBonation of cAlcium Silicates and aluminateS.We live in a world of concrete. According to the Global Cement and Concrete Association (GCCA) cement is consumed at a rate of~150 tonnes each second, and it accounts for approximately 8% of all CO2 emissions and 7% of industry energy use. In order tomitigate the negative environmental impacts of concrete, Carbon Capture and Utilization (CCU) is the best available strategy: theGCCA estimates that CCU technologies will represent up to 42% of the CO2 reductions necessary to reach the net zero industrialobjective in 2050. The CONTRABASS MSCA-DN will act in this framework, in the pathway towards the zero-CO2 cement and concreteproduction, building a high-quality doctorate network (DN) to investigate the fundamental physico-chemical processes governingthe Carbonation of the clinker phases and the cement paste, as well as the subsequent formation of Calcium Carbonate Cements(CCCs).The carbonation ability of clinker and cement is well known, yet for a full implementation of CCCs by 2050, there is an urgent need offundamental knowledge on the carbonation process. In this scenario, the CONTRABASS DN aims to contribute to the global reductionof CO2 emissions by accelerating the implementation of Calcium Carbonate Cements, developing fundamental knowledge, practicalknow-how, and a generation of well-trained specialists to overcome the main challenges identified by our industrial and academicpartners. CONTRABASS has 5 main objectives:1. To identify the carbonation mechanisms of the clinker components, specially calcium aluminates2. To understand the carbonation processes of the C-S-H gel and the cement paste3. To unravel the factors that govern CaCO3 polymorphism, nucleation and growth rates4. To build databases for thermodynamic and reactive-transport modelling of carbonation5. To communicate effectively the benefits of CCCs to society, media and policy maker.s