Developing industrial symbiosis using UK waste clay resources for new generation building materials

利用英国废粘土资源开发新一代建筑材料的工业共生

• 批准号: 10001906
• 金额: $ 105.89万
• 依托单位: MINERAL PRODUCTS ASSOCIATION LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=10001906
• 关键词: Developing; industrial; symbiosis; using; UK

This project will improve resource efficiency and symbiosis between UK foundation industries by utilising waste derived clay from the ceramics sector to produce high value innovative cement formulations. It will develop industrial connections and enhance UK supply chains by providing new low carbon resource efficient products for the UK construction industry. In doing so it will help to secure UK jobs and GVA.Clay is a raw material common to three of the UK foundation industries; cement, ceramics and paper. Higher-grade clays such as China clay are extracted for the manufacture of white ceramics and paper. Medium-grade clays are extracted to manufacture ceramics such as bricks and tiles, whereas lower-grade clays are extracted and utilised by the UK cement industry to produce Portland cement clinker.Waste derived clay material is generated during the extraction of higher-grade clays and through production and use of medium-grade clays (waste bricks/brick fines).In this project, waste derived clay from several different sources will be characterised and tested for the properties useful for cement and concrete production. Waste derived clays will be prepared using two different heating methods to enable comparisons of the resulting properties. These methods are a rotary kiln, a commonly available technology and 'flash heating', a new and innovative heating technique not yet trialled in the UK.The prepared material will be expertly formulated into cement compositions which will be tested for conformity to EU/UK standards. Concrete mixes using these clay cements will be developed and optimised with mix enhancing chemical admixtures. Both fresh and hardened properties will be examined to maximise the market potential of the new cements.The information from the testing and pilot work will be presented to the national standards body to modify the national concrete standards to remove a barrier to market for these new cements.Deployment of these new cements on the UK market could reduce waste by 1.4 million tonnes and reduce the embodied CO2 of cement by around 10-30% compared to the market leading CEM I cement.

该项目将利用陶瓷行业的废粘土生产高价值的创新水泥配方，从而提高资源效率和英国基础产业之间的共生。它将通过为英国建筑业提供新型低碳资源高效产品来发展产业联系并增强英国供应链。这样做将有助于确保英国的就业机会和 GVA。粘土是英国三个基础行业的常用原材料；水泥、陶瓷和纸张。提取瓷土等高级粘土用于制造白色陶瓷和纸张。中级粘土被提取来制造砖和瓦等陶瓷，而低级粘土被英国水泥工业提取和利用来生产波特兰水泥熟料。废物衍生的粘土材料是在提取高级粘土和通过生产和使用中级粘土（废砖/砖粉）。在该项目中，将对来自几种不同来源的废粘土进行表征并测试其可用于水泥和混凝土生产的性能。将使用两种不同的加热方法制备废物衍生粘土，以便比较所得的特性。这些方法包括回转窑（一种常用技术）和“闪速加热”（一种尚未在英国试验的新型创新加热技术）。所制备的材料将被专业地配制为水泥组合物，并对其进行欧盟/英国合规性测试标准。使用这些粘土水泥的混凝土混合物将通过混合增强化学外加剂进行开发和优化。将检查新鲜和硬化性能，以最大限度地发挥新型水泥的市场潜力。测试和试点工作的信息将提交给国家标准机构，以修改国家混凝土标准，以消除这些新型水泥的市场壁垒与市场领先的 CEM I 水泥相比，在英国市场上部署这些新型水泥可以减少 140 万吨废物，并将水泥的隐含二氧化碳含量减少约 10-30%。