详情

Improving Fatigue of Polymer Concrete Overlays Using Nanomaterials

项目名称：	Improving Fatigue of Polymer Concrete Overlays Using Nanomaterials
摘要：	Polymer concrete (PC) overlays are typically used to improve friction and to protect the structural substrate in steel orthotropic bridges and in concrete bridges. Bond and fatigue failures of PC overlays due to severe weather conditions pose an expensive maintenance challenge. In spite of its superior performance compared to normal concrete overlays, these failures limit PC's ability to resist crack growth initiation due to debonding or fatigue damage. The objective of this work is to improve the bond, fracture and fatigue performances of PC overlays using nanomaterials such as carbon nanotubes (CNTs), graphene nanoparticles (GNPs) or alumina nanoparticles (ANPs). The project will compare performance of PC samples that contain these nanomaterials with the performance of samples that do not. Standard testing will be conducted on PC specimens. Fracture toughness testing and microstructural analysis of PC overlays will also be conducted. Finite element modeling will be completed. Dynamic mechanical analysis will be used to test polymer. Fatigue testing of PC overlays and PC overlays-steel composite will be completed. Implementation will produce significant improvement in the mechanical, durability, fracture and fatigue characteristics of PC.
状态：	Active
资金：	200000.00
资助组织：	New Mexico Department of Transportation<==>Research and Innovative Technology Administration
执行机构：	University of New Mexico, Albuquerque
开始时间：	20140801
实际结束时间：	20160731
主题领域：	Design；Highways；Maintenance and Preservation；Pavements；I30: Materials