ACI 2003 Concrete Projects Competition Winners

 

1st Place:
 Ultimate Flexural Strength of Fiber Reinforced Concrete with Not Randomly Oriented Fibers
Author:
 Hamed Yazdani, Tehran University, Tehran, Iran
Advisor:
 Dr. M. Shekarchizadeh
Abstract:
 Fiber reinforcement is an effective approach to improve flexural behavior of concrete as a brittle material. In a thin section, fiber orientation is not totally random and tends to form a 2-dimensional orientation. The method of slurry infiltrated fibered concrete (SIFCON) was implemented using 160 x 40 x 40 mm specimens. In this research, the ultimate flexural strength of fiber-reinforced concrete in thin sections has been studied. The results showed a significant increase in ultimate flexural strength and fiber efficiency, compared with fiber-reinforced concrete with randomly oriented fibers.
 
  
2nd Place:
 Modulus Study for High Strength, Lightweight Concrete
Author:
 Cadet Ricardo Garza and Cadet Joshua Sprowls, USMA, West Point, New York
Advisor:
 LTC Karl F. Meyer and CPT James Hoskin
 
  
3rd Place:
 Superflat Floors in Large Projects in South America
Author:
 Nicolas Ebensperger, Pontifica Universidad Catolica de Chile, Santiago, Chile
Advisor:
 Dr. Carlos Videla