Novel Steel Reinforcement Polymer (SRP)

本研究旨在开发一种新型、低成本的复合材料，以增强和升级钢筋和预应力混凝土构件。拟议的复合材料旨在保持和改进ofFRP系统的性能和安装优势，同时显着降低其成本。这种新型复合材料由浸渍在聚合树脂基体中的编织高强度钢丝绳组成，称为SRP，即钢增强聚合物。钢丝帘线是子午线轮胎制造业中使用的一种商品，它具有碳纤维的强度和刚度，而成本只是碳纤维的一小部分。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项任务；(1)发展材料本构关系，(2)进行实验和分析研究，以证实SRP在RC和pc结构构件加固中的可行性。研究结果表明，SRP复合材料已准备好进行现场演示。一些基本问题，如长期耐用性，需要进一步研究，但在这个阶段仍然需要现场演示。该项目还将被整合到一个强大的教育和技术转移计划中，并将让本科生和研究生参与项目的每个阶段。此外，UMR是美国国家科学基金会工业合作研究中心的所在地，该研究中心处理用复合材料修复桥梁和建筑物的问题，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。

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.