Novel Steel Reinforcement Polymer (SRP)

新型钢增强聚合物 (SRP)

• 批准号: 0301256
• 负责人: Pedro Silva
• 金额: $ 15.56万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-06-01 至 2006-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0301256&HistoricalAwards=false
• 关键词: Novel; Steel; Reinforcement; Polymer; SRP

The proposed research explores the development of a novel, low cost composite material aimed atthe strengthening and upgrading of reinforced and prestressed concrete members. The proposedcomposite material intends to maintain and improve on the performance and installation advantages ofFRP systems, while significantly reducing their cost. This new composite material is composed of aknitted high-strength steel cord impregnated in a polymeric resin matrix and is called SRP, for steelreinforced polymer. The steel cord, a commodity product used in the radial tire manufacturing industry,has the strength and stiffness of carbon fiber at a fraction of its cost. To support the development of thisnovel, low cost composite material, the research program consists of the following two tasks; (1) Developthe material constitutive relations, and (2) Conduct experimental and analytical studies that cansubstantiate the feasibility of SRP for implementation into the strengthening of RC and PCstructural members. At the conclusion of this research, the SRP composite could be ready fordemonstration in the field. Some of the fundamental issues such as long-term durability wouldneed further study, but field demonstration will still be warranted at this phase.This project will also be integrated within a strong education and technology transferprogram, and will involve undergraduate and graduate students in every phase of the project. Inaddition, UMR is home to an NSF industry cooperation research center that deals with theretrofit and repair of bridges and buildings with composites, and potential manufacturers of theproduct and a leading concrete repair contractor will be directly involved in this research projectso that all aspects of technology transfer are addressed in a systematic manner.

拟议的研究探讨了一种新的，低成本的复合材料的发展，旨在加强和升级钢筋和预应力混凝土构件。所提出的复合材料旨在保持和改善FRP系统的性能和安装优势，同时显着降低其成本。这种新的复合材料是由编织的高强度钢丝帘线浸渍在聚合物树脂基体中组成的，称为SRP，即钢增强聚合物。钢帘线是子午线轮胎制造业中使用的商品，具有碳纤维的强度和刚度，成本仅为其一小部分。为了支持这种新型低成本复合材料的开发，研究计划包括以下两个任务：（1）开发材料本构关系，（2）进行实验和分析研究，以证实SRP用于RC和PC结构构件加固的可行性。在本研究的结论，SRP复合材料可以准备在现场演示。一些基本问题，如长期耐久性，将需要进一步研究，但现场演示仍将保证在这个阶段。这个项目也将纳入一个强大的教育和技术转让计划，并将涉及本科生和研究生在项目的每个阶段。此外，UMR是NSF行业合作研究中心的所在地，该研究中心处理复合材料桥梁和建筑物的翻新和修复，该产品的潜在制造商和领先的混凝土修复承包商将直接参与该研究项目，以便系统地解决技术转让的各个方面。