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Showing posts from June, 2021

Preparation of Low Energy Cement Clinker from Paper Industry Waste Materials_Crimson Publishers

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 Preparation of Low Energy Cement Clinker from Paper Industry Waste Materials by Amgad Elmahdi in  Crimson publishers :  Advancements in Civil Engineering & Technology The Kraft process-based paper production generates considerable amount of waste. The chemical recovery section produces lime sludge while fly ash is being generated in the boiler through combustion of biomass for electricity production. The final utilisation of such waste materials is significant concern, since landfilling is becoming less effective destination due to strict environmental regulations. Determined by this scenario, industries are considering more sustainable solutions, such as application of waste material in manufacturing of distinct products. In this work, the lime sludge and fly ash tested as raw materials for cement clinker synthesis and mortar preparation from synthesised cement clinker. Firstly, the detailed characterisation of waste materials was performed, on the basis of characte...

Urban Flash Floods Mitigations: Enhancing the Link between Water, Sanitation and Energy Services in Urban Settings in the MENA Region_Crimson Publishers

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 Urban Flash Floods Mitigations: Enhancing the Link between Water, Sanitation and Energy Services in Urban Settings in the MENA Region by Amgad Elmahdi in  Crimson publishers :  Advancements in Civil Engineering & Technology For centuries, the control and delivery of water has shaped states and economies across the Middle East and North Africa (MENA) region. In the 20th century, key infrastructure development tamed key river systems for water supply and led to huge expansion in irrigation, as population nearly quadrupled. More recently, MENA has experienced severe water stress against a background of recurring droughts and worsening environmental degradation, rapid urbanization and persistent food insecurity, compounded by conflict and civil unrest, giving rise to mass migration [1]. It is important to distinguish between water services availability, accessibility and quality. According to the Manual on the Human Rights to safe drinking water and sanitation for practi...

Accuracy of Code Compliant Design-Stage Building Energy Performance Simulation Models_Crimson Publishers

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 Accuracy of Code Compliant Design-Stage Building Energy Performance Simulation Models by Sergio Tarantino in   Crimson publishers :  Advancements in Civil Engineering & Technology Energy reduction standards have been adopted in legislation by many US states, such as ASHRAE 90.1. Aspects of 90.1 have also been adopted within many country’s national mandated building regulations. The development of Building Energy Performance Simulation (BEPS) models is one of the principal methods used to show compliance with these mandated building codes. In order to achieve the higher levels of certification of LEEDTM, a design stage model is virtually a requirement. Researchers and practitioners are indicating a growing concern with the perceived inaccuracies of BEPS models when compared to an occupied building’s energy usage. While the standard’s authors state that compliance models should not be used to compare to the actual building’s energy use, the developers funding the ...

Shear Strength of Concrete Members: Challenges, Recent Developments and Possibilities_CRimson Publishers

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 Shear Strength of Concrete Members: Challenges, Recent Developments and Possibilities by Victor Aguilar in    Crimson publishers :  Advancements in Civil Engineering & Technology Shear strength of concrete members has always been a complex topic, and even today, there is no widespread agreement regarding a shear resistance model. Nevertheless, the primary resistance mechanisms have been identified [1] shear transfer through uncracked concrete, aggregate interlock along cracks, dowel action of longitudinal reinforcement, arch action for short and deep members, and amount of shear reinforcement. It is assumed that the shear strength is the sum of the concrete contribution and the shear reinforcement contribution. However, the quantification of these mechanisms is not straightforward. The shear strength of concrete members is influenced by tensile concrete strength, coarse aggregate size, presence of axial force, slenderness ratio (M/Vd or a/d, where M is the bendi...