This book offers the construction industry professional an in-depth description of the use of high-volume fly ash in concrete. Importance is placed on the need for increased utilization of coal-fired power plant waste in lieu of Portland cement materials to eliminate increased carbon dioxide emissions during the production of cement. Also addressed is the significant increase in the concrete durability performance with the use of 40 percent and above of fly ash by weight. The book also contains charts of experimental test results of high volume fly ash concrete and also comparison results with concrete made with Ordinary Portland Cement.