1. Structural Engineer, Bob D. Campbell & Company, 4338 Belleview Ave., Kansas City, MO 64111.
2. Professor, Institute of Concrete Science and Technology (ICITECH), Univ. Politècnica de València, Valencia 46022, Spain.
3. Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam (corresponding author).
4. Professor, Dept. of Civil Engineering, Univ. of Arkansas, Fayetteville, AR 72701.
5. Assistant Professor, School of Civil Engineering and Environmental Science, Univ. of Oklahoma, Norman, OK 73019.