Workshop on Interface Problems in Cement-Based Materials

水泥基材料界面问题研讨会

• 批准号: 0340915
• 负责人: Kaspar Willam
• 金额: $ 1.5万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-01-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0340915&HistoricalAwards=false
• 关键词: Workshop; Interface; Problems; Cement; Based

This workshop on Interface Behavior in conjunction with the FramCos-5Conference on Fracture Mechanics of Concrete and Concrete Structures,Vail,Colorado,April 12-16,2004. It will provide a forum for a exchange on fundamental issues related to interfacial transition zones in cement-based materials at different scales of observation.At the macroscopic level we will address adhesive bond among bi-materials such as concrete and reinforcing steel with and without polymeric coatings. At the mesoscopic level we will focus o adhesive-cohesive properties between cementitious constituents and natural aggregate inclusions as well as reinforcing members and laminates.At the microscopic level,we will examine the cohesive behavior between different .cement-based constituents. The workshop on interface fundamentals will include four sessions:(i)experimental obser-vations and sensing,(ii)theoretical aspects and material models,(iii)computational issues of delamination and fracture,and (iv)applications at different .levels of observation.The workshop presentations will be by invitation only.The discussion will benenifit from the participants of the FramCos-5 Conference who will be invited to attend the workshop at nominal cost.The intent of the workshop is to bring together leading researchers and to identify outstanding issues and a research agenda in the field of interface behavior starting from interface mechanics/chemistry all the way to repair strategies for hot and cold joining. It is the interfacial transition zone which is at the core of the workshop.The basic intenet are interface properties which determine the degradation of multi-material systems such as reinforced cement-based materials under monotonic and cyclic environments.Aside fromthe multi-scale aspects of such heterogeneous materials the workshop is intended to high-light recent advances and current issues in measuring interface properties,i formulating the constitution of zero-and finite thickness interface transition zones under multi-axial loading,in model-based simulations of interface degradation under monotonic and cyclic conditions, and in different .applications in the .field of joining and debonding.

这个关于界面行为的研讨会与混凝土和混凝土结构断裂力学的Framcos-5会议，科罗拉多州Vail，4月12日至16日，2004年4月12日。它将提供一个论坛，以交换与不同观察尺度的基于水泥材料中的界面过渡区有关的基本问题。在宏观级别，我们将解决带有多聚合物涂料的混凝土和钢筋钢等双层物质之间的粘合键。在介质水平上，我们将集中胶合成分与自然骨料内包含物以及增强成员和层压板之间的粘合性粘合性能。在微观水平上，我们将研究不同的基于.Secession的组成部分之间的凝聚行为。界面基本原理的研讨会将包括四个会议：（i）实验性观察和感应，（ii）理论方面和材料模型，（iii）分层和断裂的计算问题，以及（iv）在不同的观察中进行。仅通过邀请参加。讲习班的讲习班的目的是将领先的研究人员汇集在一起​​，并确定界面行为领域的杰出问题和研究议程，从界面力学/化学开始，一直以修复热和冷的策略。它是车间核心的界面过渡区。基本的Intenet是界面属性，这些特性决定了多物质系统的降级，例如单调和环状环境下的增强水泥基材料。从多尺度和周期性材料的多尺度方面介绍了诸如异型材料的多个属性和当前的互动术语I的属性，而不是高级委员会的属性。在多轴负载下，在单调和循环条件下基于模型的界面降解以及在连接和剥离的区域中，在基于模型的界面降解中，零和有限的厚度界面过渡区，在基于模型的界面降解中。