Development of environmentally friendly materials for 3D concrete printing

开发用于3D混凝土打印的环保材料

• 批准号: 567107-2021
• 负责人: Das, Sreekanta
• 金额: $ 2.17万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=722360
• 关键词: Development; environmentally; friendly; materials; 3D

Construction industry has been moving towards automation. One of the most promising and fast-growing automated construction technologies is printing houses and other structures using a 3D concrete printer (3DCP). The 3D concrete printing technology has many advantages such as reduced construction time, cost saving, better quality control, enhanced work-place safety, lesser use of materials, and almost zero-waste in construction materials. Current 3D printing material uses a large amount of Portland cement (PC) as the binder and natural filler materials (sand and crushed stones). Hence, these printing materials are environmentally harmful because the production of PC is responsible for about 8% of total Carbon dioxide and other greenhouse gases (GHG). Additionally, the use of natural filler materials creates a significant amount of GHG emission and depletion of our natural resources. Hence, the goal of this study is to develop urgently needed sustainable (environmentally friendly) printing materials for 3DCP that will significantly cutdown the use of PC and natural resources (sand and crushed stones). The goal will be achieved by using Canadian waste materials such as construction and demolition wastes, recycled glass products, recycled vehicle tyres. Hence, the outcome of this research will help in reducing Canada's GHG emission, alleviating landfill problem, and protecting natural resources. Additionally, the outcomes of this research will position Canadian engineering and construction companies and Canada as the leader in the automated and green construction technique using 3D concrete printer and environmentally friendly materials. As a result, new jobs will be created, and Canadian economy will be benefitted. This research will be executed by students who will be trained in various aspects of green construction materials and use of 3D printing in the construction. These highly trained and skilled students will be able to bridge the skills gap in Canada.

建筑业一直在朝着自动化发展。最有希望的自动化施工技术之一是使用3D混凝土打印机（3DCP）打印房屋和其他结构。 3D混凝土打印技术具有许多优势，例如缩短的施工时间，节省成本，质量更好，工作场所安全，材料的使用较小以及在建筑材料中几乎零浪费。当前的3D打印材料使用大量波特兰水泥（PC）作为粘合剂和天然填充物（沙子和碎石）。因此，这些印刷材料在环境上是有害的，因为PC的生产约占二氧化碳总碳和其他温室气体（GHG）的8％。此外，使用天然填料材料会产生大量的温室气体排放和自然资源的消耗。因此，这项研究的目的是为3DCP开发急需的可持续性（环保）印刷材料，以大大减少PC和自然资源（沙子和碎石）的使用。该目标将通过使用加拿大废料，例如建筑和拆除废物，再生玻璃产品，再生车轮。因此，这项研究的结果将有助于减少加拿大的温室气体排放，减轻垃圾填埋场问题并保护自然资源。此外，这项研究的结果将使用3D混凝土打印机和环保材料将加拿大工程和建筑公司以及加拿大成为自动化和绿色建筑技术的领导者。结果，将创造新的就业机会，加拿大经济将受益。这项研究将由学生将在绿色建筑材料的各个方面进行培训，并在建筑中使用3D打印。这些训练有素且熟练的学生将能够弥合加拿大的技能差距。