Environmental impact assessment of river sand and their alternatives in construction

River sand is a crucial material used to make cement in the construction industry due to its unique properties formed naturally. However, river sand mining leads to several harmful environmental impacts. This study aims to find a suitable and feasible alternative to River sand with similar or better...

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Main Author: Vemula Jahnavi
Other Authors: Grzegorz Lisak
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2020
Subjects:
Online Access:https://hdl.handle.net/10356/141976
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1419762020-06-12T08:25:02Z Environmental impact assessment of river sand and their alternatives in construction Vemula Jahnavi Grzegorz Lisak School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute g.lisak@ntu.edu.sg Engineering::Civil engineering River sand is a crucial material used to make cement in the construction industry due to its unique properties formed naturally. However, river sand mining leads to several harmful environmental impacts. This study aims to find a suitable and feasible alternative to River sand with similar or better properties and helps to lessen these environmental impacts. The alternatives explored in this study, are manufactured sand, crushed waste glass and furnace bottom ash. Production process flow for each material is explained to understand how the material can be made suitable as a construction material. The study uses the ReCiPe midpoint method (H) under Life Cycle Assessment which assesses the environmental impacts under 18 specified impact categories. Environmental Impact Assessment is conducted to assess 1 tonne of each material production. From the results obtained, it can be concluded that crushed waste glass is suitable for partial replacement and manufactured sand is suitable for replacement of river sand, as they contribute lesser to the environmental impact categories when compared to furnace bottom ash. While Furnace bottom ash is feasible to replace river sand due to its properties and the tests, it contributes higher environmental impacts comparatively to river sand and hence, not recommended as a suitable alternative in this study. Bachelor of Engineering (Civil) 2020-06-12T08:25:02Z 2020-06-12T08:25:02Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/141976 en 83540 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Civil engineering
spellingShingle Engineering::Civil engineering
Vemula Jahnavi
Environmental impact assessment of river sand and their alternatives in construction
description River sand is a crucial material used to make cement in the construction industry due to its unique properties formed naturally. However, river sand mining leads to several harmful environmental impacts. This study aims to find a suitable and feasible alternative to River sand with similar or better properties and helps to lessen these environmental impacts. The alternatives explored in this study, are manufactured sand, crushed waste glass and furnace bottom ash. Production process flow for each material is explained to understand how the material can be made suitable as a construction material. The study uses the ReCiPe midpoint method (H) under Life Cycle Assessment which assesses the environmental impacts under 18 specified impact categories. Environmental Impact Assessment is conducted to assess 1 tonne of each material production. From the results obtained, it can be concluded that crushed waste glass is suitable for partial replacement and manufactured sand is suitable for replacement of river sand, as they contribute lesser to the environmental impact categories when compared to furnace bottom ash. While Furnace bottom ash is feasible to replace river sand due to its properties and the tests, it contributes higher environmental impacts comparatively to river sand and hence, not recommended as a suitable alternative in this study.
author2 Grzegorz Lisak
author_facet Grzegorz Lisak
Vemula Jahnavi
format Final Year Project
author Vemula Jahnavi
author_sort Vemula Jahnavi
title Environmental impact assessment of river sand and their alternatives in construction
title_short Environmental impact assessment of river sand and their alternatives in construction
title_full Environmental impact assessment of river sand and their alternatives in construction
title_fullStr Environmental impact assessment of river sand and their alternatives in construction
title_full_unstemmed Environmental impact assessment of river sand and their alternatives in construction
title_sort environmental impact assessment of river sand and their alternatives in construction
publisher Nanyang Technological University
publishDate 2020
url https://hdl.handle.net/10356/141976
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