CO2 emissions resulting from the production of cement is a major issue, but can be limited by the... more CO2 emissions resulting from the production of cement is a major issue, but can be limited by the partial substitution of cement by low-carbon-impact additions. The aim of this study was the formulation of a ternary binder based on ordinary Portland cement (OPC), ground granulated blast-furnace slag (GGBS) and flash-calcined sediment (FCS), a dredged waste which was valorized after applying a new heat treatment: flash calcination. The used materials were physically, chemically and mineralogically characterized. The composition of the formulations was optimized using mixture designs. Five formulations, one reference formulation RM (100% OPC), one binary formulation (50% OPC/50% GGBS), and three ternary formulations with a variable FCS rate (10%, 15%, 20%), were selected and characterized fresh and hardened. Results showed that the incorporation of FCS reduced the workability and increased the density. In addition, a decrease in the initial setting time and the heat of hydration peak ...
: A link between youth's attitudes toward military service and their subsequent enlistment be... more : A link between youth's attitudes toward military service and their subsequent enlistment behavior was tested. It was used to project DOD enlistments through the year 2000 under conservative assumptions. Enough qualified volunteers should be available to meet the DOD accession requirements programmed for the future. Keywords: enlisted personnel; Manpower requirements; NLS(National Longitudinal Survey); Recruiting; Surveys; Tables(Data); and YATS(Youth Attitude Tacking Survey).
CO2 emissions resulting from the production of cement is a major issue, but can be limited by the... more CO2 emissions resulting from the production of cement is a major issue, but can be limited by the partial substitution of cement by low-carbon-impact additions. The aim of this study was the formulation of a ternary binder based on ordinary Portland cement (OPC), ground granulated blast-furnace slag (GGBS) and flash-calcined sediment (FCS), a dredged waste which was valorized after applying a new heat treatment: flash calcination. The used materials were physically, chemically and mineralogically characterized. The composition of the formulations was optimized using mixture designs. Five formulations, one reference formulation RM (100% OPC), one binary formulation (50% OPC/50% GGBS), and three ternary formulations with a variable FCS rate (10%, 15%, 20%), were selected and characterized fresh and hardened. Results showed that the incorporation of FCS reduced the workability and increased the density. In addition, a decrease in the initial setting time and the heat of hydration peak ...
: A link between youth's attitudes toward military service and their subsequent enlistment be... more : A link between youth's attitudes toward military service and their subsequent enlistment behavior was tested. It was used to project DOD enlistments through the year 2000 under conservative assumptions. Enough qualified volunteers should be available to meet the DOD accession requirements programmed for the future. Keywords: enlisted personnel; Manpower requirements; NLS(National Longitudinal Survey); Recruiting; Surveys; Tables(Data); and YATS(Youth Attitude Tacking Survey).
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Papers by Shraddha Patil