Effective Strategies for Improving Camber Predictions in Precast, Prestressed Concrete Bridge Girders and Research in Progress from Lafayette College Concrete Laboratory (LCCL)
Date & Time
Thursday, March 14, 2019
Cocktails - 5:30 PM
Dinner - 6:30 PM
Presentation - 7:30 PM
Grand Eastonian Hotel & Suites, 140 Northampton St., Easton, PA 18042
EPDACI Members & Guest - $50; Non Member: $60; EPDACI Student Member - $15; Non Member Student: $20
In order to limit construction conflicts in bridges with precast, prestressed concrete girders, it is essential that designers can predict midspan girder camber with sufficient accuracy at key stages. The first portion of this presentation describes a study of the effectiveness of various strategies for improving camber predictions when compared to field-measured values from actual bridge girders produced in the Southeastern United States. The study also incorporated concrete materials data from nearly 2,000 girder production cycles among four regional producers in additional to a laboratory study of mechanical and time-dependent properties of representative concrete mixtures.
The second portion of this presentation will include brief student laboratory report outs of research in progress at the Lafayette College Concrete Laboratory (LCCL). Anticipated topics include (a) Recycled Foamed Glass Aggregate (FGA) Concrete for use in Infrastructure Applications, (b) Prototype Sensor Development and Validation for In Situ Concrete Modulus of Elasticity Measurement, and (c) Laboratory Startup/Renovation for Flexural Capacity Testing of PennDOT Bridge Deck Panel Joint Detail.
Speaker: David M. Mante, Ph.D., Assistant Professor of Civil Engineering at Lafayette College