[UCI-Calit2] Upcoming Lecture: Next Generation Structural Concrete -- Development and Applications

Anna Lynn SPITZER ASPITZER at uci.edu
Thu May 5 16:15:43 PDT 2005


Title:                            Next Generation Structural Concrete --
Development and Applications

 

Speaker:                      Victor Li, professor of civil and
environmental engineering, University of Michigan, Ann Arbor

 

Time:                           5-6 p.m.

 

Date:                           Wednesday, May 18, 2005

 

Location:                     Calit2 Building, Room 3008

 

Abstract:                      Safety, durability and sustainability are
highly desirable attributes of civil infrastructure. Unfortunately
concrete as we know it today remains brittle, which contributes to
catastrophic failure of structures under extreme loads and to gradual
deterioration under normal service conditions. Catastrophic structural
failures have been highlighted by recent natural earthquake events and
man-made terrorist activities. A 2005 ASCE report describes our nation's
infrastructure in terms of "failing grades" and "looming crises."  The
increasing awareness of the negative interaction between the natural and
the built environment drives home the concern for infrastructure
sustainability. 

 

The need for major advances in concrete technology is evident.  A quiet
transformation is currently underway in concrete materials with embedded
tensile ductility.  Engineered Cementitious Composites (ECC) is a
next-generation concrete aimed at structural applications with
significant improvements in safety, durability and sustainability.  ECC
has been designed at the micro and nano-scale and recently utilized
internationally in full-scale infrastructure systems, including in a
cable-stayed bridge in Hokkaido and a tall building in Central Tokyo,
Japan.  This seminar traces the micromechanics-based development of this
relatively new material, and the unique properties and their translation
into structural performance. The rheological behavior of ECC
advantageous to construction execution is also presented.  Finally, some
recent field applications of ECC are highlighted.

 

Bio:                              Victor Li received his bachelor's,
master's and doctorate degrees in engineering from Brown University. He
is a fellow of the American Society of Mechanical Engineers and the
American Society of Civil Engineers; a member of the American Concrete
Institute and the International Union of Laboratories and Experts in
Construction Materials. He served as chair of the 5th International
Conference on Fracture Mechanics of Concrete and Concrete Structures and
of RILEM TC-HPC on High Performance Fiber Reinforced Composites. 

 

His research interests includes the design, processing and
characterization of advanced fiber-reinforced cementitious composites,
and the elevating of the ultra-ductility of such materials to the
mechanical and durability performance of structural elements and
systems. A special focus is on the integration of materials, structures
and environmental concerns for infrastructure sustainability.

 

            

 

 

 

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