Véronique Baroghel-Bouny, Laboratoire Central des Ponts et Chaussées (Research Laboratory of Bridges and Roads Administration), France Nowadays, worldwide efforts are being made to develop durability design approaches in order to ensure a longer life for reinforced concrete (RC) structures at
HPC TESTS — ALKALI-SILICA REACTION
William G. Hime, Wiss, Janney, Elstner Associates, Inc Alkali-silica reaction (ASR) was discovered by Stanton* in 1940. Since then, and certainly even now, it has been mischaracterized, misdiagnosed, and probably mistested. At the same time, ways to mitigate its effect
LESSONS LEARNED IN NEW HAMPSHIRE
Mark D. Whittemore and Peter E. Stamnas, New Hampshire Department of Transportation Ten years ago, New Hampshire (NH) would have been considered an unlikely candidate to become involved in high performance concrete (HPC). NH’s subsequent success in the development and
HPC FOR DECKS IN NEVADA
Sohila Bemanian, Nevada Department of Transportation As a result of the state’s fast growth rate, the Nevada Department of Transportation (NDOT) is faced with the largest work program in its history. NDOT will spend $1 billion in the next several
Question and Anser
Question: Can I use the LRFD Bridge Design Specifications for concrete strengths above 10 ksi (69 MPa)? Answer: The recently published Third Edition of the AASHTO LRFD Bridge Design Specifications states that the provisions of Section 5: Concrete Structures are