The lecturer at the Faculty of Engineering at the University of Kufa, Dr. Hayder Alghazali, published scientific research entitled: “Effect of Accelerated Curing Regimes on High Volume Fly Ash Mixture in Precast Manufacturing Plants” In the Journal of Cement and Concrete Research and within Elsevier Publishing House, which are within the Scopas containers, and by the impact factor of 5.615 and the classification of Q1. Alghazali explained that the research included a detailed laboratory study of the effect of accelerated treatment on the performance of concrete cement mixtures containing a high percentage of fly ash and produced from power plants electrical. He pointed out that during the research, advanced statistical principles were used to design cement mixtures to obtain an athletic and engineering behavior that can be used in prefabricated concrete casting plants, which requires completion of work as quickly as possible, pointing to the replacement of Portland cement by up to 70% with fly ash. It exceeded the problem resulting from replacing cement with high proportions and obtaining concrete cement with high efficiency and the lowest possible energy as it can be used in the precast manufacturing plants. Stressing that this research will provide large energy as a result of reducing the use of cement and will produce environmentally friendly concrete that can be used in several areas.