Title:
Application of HPC in a New Hampshire Bridge
Author(s):
Christopher M. Waszczuk and Michelle L. Juliano
Publication:
Concrete International
Volume:
21
Issue:
2
Appears on pages(s):
61-62
Keywords:
bridge decks; chlorides; freeze-thaw durability; high-performance concrete; mix proportions; permeability specifications
DOI:
Date:
2/1/1999
Abstract:
A high-performance concrete bridge (HPC) in Bristol, N.H., is a 20 m single span structure with a total width of 17.5 m, designed to accommodate three lanes of traffic and a sidewalk. The superstructure consists of cast-in-place concrete with five precast/prestressed AASHTO Type III girders. The University of New Hampshire provided a recommendation for the HPC mix proportions to be used in the bridge deck; three different mixes were tested and the one exhibiting the best performance was ultimately selected. Based on preliminary evaluations, the concrete deck will be highly resistant to chloride intrusion and freeze-thaw deterioration.