CCPDM-Circular cementitious products embedding digital manufacturing

这个由IDoBE中心领导的新项目利用建筑和拆迁(C&D)废物和塑料废物，制造由添加剂制造驱动的模块化积木原型。它在英国和印度的两个研究中心之间建立了虚拟联系。建筑材料促进委员会估计，印度每年产生1.5亿吨建筑和拆迁(C&D)垃圾。然而，只有1.3%的拆建废物可循环再用。印度在全国范围内的垃圾和垃圾回收流程缺乏统一性和有限的良好商业案例。在印度国家清洁空气计划和城市地方机构之后，垃圾处理也是控制空气质量的关键部分。在英国，C&D垃圾占年垃圾的60%。虽然90%以上的拆建废物已被回收，但仍有很大潜力提高回收的循环值，例如从回填到建筑产品的再利用。该项目旨在利用C&D和塑料废料实现模块化制造中最优的混合设计，从而在循环研究和开发方面架起一座最先进的桥梁。它阐述了来自C&D和塑料废物的过程和产品。IDoBE中心将领导可行性研究，以确定C&D废物的来源、废物的处理和产品案例。讨论了英国地基行业目前面临的挑战，特别是在拆除现场对砖棒和混凝土材料进行分类，因为它们的混合对湿法加工厂以及工厂生产的沙子和骨料的性能产生了负面影响。在印度，SV-NIT实验室正在为目前参与一个大型地铁项目的承包商提供咨询服务，该项目使用可回收和可重复使用的拆建废料进行建筑。该项目建立在英国团队在重复使用废塑料生产3D打印产品方面的现有专业知识的基础上，这些废塑料可适应和可重复用于成型块。它将扩展IDoBE中心先前的工作，进一步整合C&D和塑料废物，开发作为业务案例的测试块。IDoBE中心的研究团队通过虚拟网络在建筑和土木工程领域利用当地现有材料发展英国和印度之间的知识。该项目计划开展研究传播活动，将当前的研究活动与新兴的添加剂制造联系起来，以推动在建筑中使用不可持续产品的思维方式的转变。

This new project led by the IDoBE Centre utilises construction and demolition (C&D) wastes and plastic wastes, for an additive manufacturing-driven prototype of modular blocks. It builds the virtual connection between two research centres in the UK and India. Building Material Promotion Council estimated that India generates 150 million tonnes of construction and demolition (C&D) waste annually. However, just 1.3% of the total C&D wastes are recycled. There are a lack of uniformity and limited good business cases in C&D recycling processes in India nationwide. C&D waste handling also forms a key part in controlling the air quality following India's National Clean Air Programme and Urban Local Bodies. In the UK, C&D wastes account for up to 60% of annual wastes. Although over 90% of C&D wastes have been recovered, there is a large potential to improve the circularity value of recovery, such as from backfilling to repurposed building products. This project aims to bridge the state-of-the-art circularity research and development in utilising C&D and plastics wastes to achieve the optimal mix design in manufacturing modular blocks. It addresses the process and products from C&D and plastic wastes. IDoBE Centre will lead the feasibility study to establish the sources of C&D wastes, the processing of wastes, and the product case. Current challenges in the UK foundation industry are addressed, specifically, sorting of brickbats and concrete materials at demolition sites as their mix has a negative impact on wet processing plants and properties of sand and aggregate produced from the plants. In India, SV-NIT Lab is providing consultancy services to contractors currently involved in a Metro rail large project that use recyclable and reusable C&D waste materials for construction.The project builds upon the existing expertise of the UK team in reusing waste plastics for 3D printing products, which are adaptable and reusable for shaping blocks. It will extend the prior work of the IDoBE Centre by further integrating C&D and plastic wastes in developing the testing blocks as the business case. The research team from IDoBE Centre through virtual network develop the knowledge between UK and India in utilising locally available materials in construction and civil engineering sectors. Research dissemination activities are planned in this project to link current research activities into emerging additive manufacturing to drive the change in thinking of using unsustainable products in construction.