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Go to Editorial ManagerBasrah Refinery Plant produces recently gasoline with low octane number reached to 75.5, 69.0 for leaded and unleaded gasoline respectively. These fuel causes severe damage to engines and also causes bad fuel combustion which increases air pollution due to the high percentage of [CO] and [CO2] in the exhaust produced. In this research it is tried to improve the gasoline octane number by new chemical additives [aromatic hydrocarbons, aliphatic and aromatic amines] with different percentages in gasoline. This kinds of additives can also be used as antioxidants, antirust and anticorrosion which reduces the total amount of chemicals added to gasoline. The better results obtained with aromatic amines as chemical additives which caused increasing in octane number up to [95-5, 88..0] for leaded and unleaded gasoline respectively. The percentages of [CO] and [CO2] gases formed after combustion are measured by orsat analysis based on dry analyses.
It is very crucial to minimize the environmental impact that induced from the development of industry, by applying strict policies and innovate eco-friendly industries. Indeed, construction manufacture considered as one of the most industries that affect the environment, especially concrete production and usage in structural buildings. For instance, traditional concrete, which is consists of a high amount of cement, is contributed to the emission of CO 2 . Therefore, researchers seeking to develop a new technology of concrete by replacement some amount of cement by materials which are considered to become more friendly to the environment. Nowadays, this new technology is known as Green Concrete. The importance of using green concrete is not only to decrease the emission amounts of CO 2 but also to replace cement by industrial waste. In this paper, a review has been presented to understand green concrete benefits and materials that may be used instead of cement and aggregate.