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

我们生活在一个混凝土的世界里。根据全球水泥和混凝土协会（GCCA）的数据，水泥以每秒约150吨的速度消耗，约占所有二氧化碳排放量的8%和工业能源使用量的7%。为了减轻混凝土对环境的负面影响，碳捕获和利用（CCU）是最好的策略：GCCA估计，CCU技术将占到2050年实现净零工业目标所需二氧化碳减排量的42%。在这一框架内，MSCA-DN将采取行动，在通往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学位网络（DN），以研究控制熟料相和水泥浆碳化的基本物理化学过程，以及随后的碳酸钙水泥（CCC）的形成。然而，为了在2050年之前全面实施CCCs，迫切需要有关碳酸化过程的基础知识。在这种情况下，BASSS DN旨在通过加速碳酸钙水泥的实施，开发基础知识，实用技术和一代训练有素的专家来克服我们的工业和学术合作伙伴所确定的主要挑战，为全球减少二氧化碳排放量做出贡献。BASIS有5个主要目标：1。确定熟料成分的碳酸化机制，特别是铝酸钙2。了解C-S-H凝胶和水泥浆体的碳化过程。要解开的因素，支配碳酸钙的多态性，成核和生长速率4。建立碳化的热力学和反应传输模型数据库5。向社会、媒体和决策者有效宣传核心承诺的好处。

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