The feasibility of producing sustainable cement-free composites and its environmental impact were investigated in this research. Experimental parametric evaluation was carried out regard to explore the optimum mix design composites. effect synthesis parameters curing conditions on behavior produced geopolymer investigated. studied included molarity sodium hydroxide solution (12 M, 14 16 M), sil...

This work addresses the optimization of ammonia–water absorption cycles for cooling and refrigeration applications with economic and environmental concerns. Our approach combines the capabilities of process simulation, multi-objective optimization (MOO), cost analysis and life cycle assessment (LCA). The optimization task is posed in mathematical terms as a multi-objective mixed-integer nonline...

ii EXECUTIVE SUMMARY Concrete bridges in coastal locations, as are common in Florida, are susceptible to chloride induced reinforcing steel corrosion and to resultant concrete cracking and spalling. Design approaches adapted in the past decade by the Florida Department of Transportation to provide enhanced corrosion resistance include 1) use of high performance concretes; that is, ones with a) ...

This article examines individual and social influences on investments in health and enjoyment from immediate consumption. Our lab experiment mimics the problem of health investment over a lifetime (Grossman, 1972a,b). Incentives to find the appropriate expenditures on life enjoyment and health are given by making in each period come period a function of previous health investments. In order to ...