The Study of Disorder in Amorphous Silica, Alkali-Silica Reaction Gel and Fly Ash By Çağla Meral A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Engineering – Civil and Environmental Engineering in the Graduate Division of the University of California, Berkeley Committee in charge: Professor Paulo J. M. Monteiro, Co-Chair Professor Claudia P. Ostertag, Co-Chair Professor Hans-Rudolf Wenk Professor Garrison Sposito Fall 2012