Partnership for Advancing Technology in Housing: Extruded Fiber-Reinforced Cement Composites for Residential Construction

挤压纤维增强水泥复合材料用于住宅建筑混凝土比木材更坚固、更耐用、更耐火、性能更稳定，使其成为住宅建筑的良好材料。然而，素混凝土相对较脆和较重。这些缺点可以通过特殊的加工技术和纤维增强来克服。最近，西北大学ACBM中心采用挤压技术生产高性能纤维增强复合材料。在这一过程中，水泥浆体和超细纤维的高粘度混合物被强制通过所需横截面的模具。挤压复合材料比传统混凝土更坚固，更具延展性，更不透水。这项拟议研究的目标是开发适合于住宅建设的挤压型高性能复合材料，特别是先进的面板系统。复合材料的设计将实现提高耐用性、降低维护成本以及减少自然灾害造成的生命、伤害和财产破坏风险的路径目标。将开发不同的横截面，重点是蜂窝结构，以生产轻型元件和先进的面板系统。与芝加哥住房委员会和建筑业供应商的合作将提供向建筑商和承包商介绍这些产品的途径。

EXTRUDED FIBER-REINFORCED CEMENT COMPOSITES FOR RESIDENTIAL CONSTRUCTIONPROPOSAL ABSTRACTConcrete can be stronger, more durable, more fire-resistant, and perform more consistently than wood, making it a good material for residential construction. However, plain concrete is relatively brittle and heavy. Those drawbacks can be overcome with special processing techniques and fiber reinforcement. Recently extrusion technology has been adapted for the production of high-performance, fiber-reinforced composites at Northwestern University's ACBM Center. In this process, a highly viscous mixture of cement paste and micro-fibers is forced through a die of desired cross-section. Extruded compositions are stronger, more ductile and more impervious to water than conventional concrete. The objective of this proposed research is to develop extruded, high-performance composites suitable for residential construction, particularly advanced panel systems. The composites will be designed to accomplish the PATH goals of improved durability, reduced maintenance costs, and reduced risk of life, injury, and property destruction from natural hazards. Different cross-sections, with a focus on cellular construction, will be developed for the production of lightweight elements and advanced panel systems. Collaboration with the Chicago Board of Housing and suppliers to the construction industry will provide avenues to introduce these products to builders and contractors.