Development of Ultrahigh Performance Concrete Using Ternary Blend of Ultra Fine Class F Fly Ash, Metakaolin and Cement at Ambient Temperature . Zhengqi Li and Prasada Rangaraju . 1. Development of UHPC Using Ternary Blend s of UltraFine Class F Fly Ash, Meta kaolin and Portland Cement . Zhengqi Li and Prasada Rao Rangaraju