Concrete: addressing CO2 & resource availability challenges using reclaimed materials

使用波特兰水泥(PC)生产混凝土的工艺已经很成熟，占全球人造二氧化碳的5-8%。混凝土产品的最终用户现在要求对环境的影响很小。然而，在满足用户要求(产品性能和销量)的同时减少这些影响仍然是英国乃至全球该行业面临的主要挑战。该项目将通过开发和扩大新的制造工艺并实施材料创新来应对这一挑战，以实现从替代粘结剂到PC的低二氧化碳混凝土产品的成本效益，这些产品基于通过化学激活而硬化的废物或副产品材料。该项目还将评估在不使用传统PC的情况下使用再生材料(例如填埋的PFA)作为传统混凝土中PC的部分替代。因此，它将应对制造挑战，扩大材料投入和最终用户细分的范围，以创建可供英国中小企业扩展的解决方案，并支持它们为大市场开发新服务。

Manufacturing processes for concretes using Portland cement (PC) are well established and account for 5-8% of global man-made CO2. End users of concrete products now demand low environmental impacts. However, reducing these impacts whilst still meeting user requirements (product performance and volume) remains a major challenge for the industry in the UK & globally. The project will address this challenge by developing and scaling up new manufacturing processes and implementing materials innovation to enable the cost effective production of low CO2 concrete products from alternative binders to PC based on waste or byproduct materials that harden by a chemical activation. The project will also assess the use of reclaimed materials (e.g. landfilled pfa) without use of conventional PC and as a partial replacement for PC in conventional concrete. It will thus address manufacturing challenges and broaden the scope of materials inputs & end user segments to create solutions scalable by UK SMEs and support them to develop new services for a large market.