Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code

Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code

Improving aggregate formation and stability of bauxite is essential in order to understanding the risk of liquefaction in bulk cargoes. Effects of gypsum and vermicompost on related chemical and physical conditions of bauxite residue were studied in a laboratory incubation experiment. Addition of gy...

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Main Author: Muhammad Fat-Hi Al Juwaini, Pahrol
Format: Undergraduates Project Papers
Language:English
English
English
English
Published: 2017
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/23617/
http://umpir.ump.edu.my/id/eprint/23617/
http://umpir.ump.edu.my/id/eprint/23617/1/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Table%20of%20contents.pdf
http://umpir.ump.edu.my/id/eprint/23617/2/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Abstract.pdf
http://umpir.ump.edu.my/id/eprint/23617/3/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Chapter%201.pdf
http://umpir.ump.edu.my/id/eprint/23617/4/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20References.pdf
id ump-23617
recordtype eprints
spelling ump-236172019-02-25T02:06:06Z http://umpir.ump.edu.my/id/eprint/23617/ Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code Muhammad Fat-Hi Al Juwaini, Pahrol TA Engineering (General). Civil engineering (General) Improving aggregate formation and stability of bauxite is essential in order to understanding the risk of liquefaction in bulk cargoes. Effects of gypsum and vermicompost on related chemical and physical conditions of bauxite residue were studied in a laboratory incubation experiment. Addition of gypsum at 2% and 4% w/w reduced pH and exchangeable sodium percentage, whilst increasing exchangeable calcium content. Addition of vermicompost reduced bulk density, whilst significantly increasing porosity and total organic carbon. Vermicompost had a positive effect on the formation and stabilization of water-stable aggregates in the residue, whilst gypsum was more beneficial to silt-sized micro aggregate flocculation. Amendments also enhanced the erosion resistance of bauxite residue. Furthermore, wet sieving using the modified Le Bissonnais’ (LB) method revealed that in comparison to differential clay swelling and mechanical breakdown, slaking was the major disaggregation mechanism of residue aggregates. The combination of gypsum and vermicompost converted the residue from a sheet-like structure to a granular macro aggregated structure, whilst converting micro aggregates from a grain to a granular or prismatic structure. The findings of this work suggest that application of gypsum and vermicompost to bauxite residue may directly influence aggregate size distribution and its micromorphology, resulting in the improvement of both aggregate stability and structure to reduce liquefaction risk. 2017 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23617/1/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Table%20of%20contents.pdf pdf en http://umpir.ump.edu.my/id/eprint/23617/2/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Abstract.pdf pdf en http://umpir.ump.edu.my/id/eprint/23617/3/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Chapter%201.pdf pdf en http://umpir.ump.edu.my/id/eprint/23617/4/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20References.pdf Muhammad Fat-Hi Al Juwaini, Pahrol (2017) Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code. Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:103583&theme=UMP2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
English
English
English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Muhammad Fat-Hi Al Juwaini, Pahrol
Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code
description Improving aggregate formation and stability of bauxite is essential in order to understanding the risk of liquefaction in bulk cargoes. Effects of gypsum and vermicompost on related chemical and physical conditions of bauxite residue were studied in a laboratory incubation experiment. Addition of gypsum at 2% and 4% w/w reduced pH and exchangeable sodium percentage, whilst increasing exchangeable calcium content. Addition of vermicompost reduced bulk density, whilst significantly increasing porosity and total organic carbon. Vermicompost had a positive effect on the formation and stabilization of water-stable aggregates in the residue, whilst gypsum was more beneficial to silt-sized micro aggregate flocculation. Amendments also enhanced the erosion resistance of bauxite residue. Furthermore, wet sieving using the modified Le Bissonnais’ (LB) method revealed that in comparison to differential clay swelling and mechanical breakdown, slaking was the major disaggregation mechanism of residue aggregates. The combination of gypsum and vermicompost converted the residue from a sheet-like structure to a granular macro aggregated structure, whilst converting micro aggregates from a grain to a granular or prismatic structure. The findings of this work suggest that application of gypsum and vermicompost to bauxite residue may directly influence aggregate size distribution and its micromorphology, resulting in the improvement of both aggregate stability and structure to reduce liquefaction risk.
format Undergraduates Project Papers
author Muhammad Fat-Hi Al Juwaini, Pahrol
author_facet Muhammad Fat-Hi Al Juwaini, Pahrol
author_sort Muhammad Fat-Hi Al Juwaini, Pahrol
title Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code
title_short Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code
title_full Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code
title_fullStr Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code
title_full_unstemmed Liquefaction risks on bulk cargoes carrying unamended & amended Gebeng bauxite in accordance to International Maritime Solid Bulk Cargoes (IMSBC) code
title_sort liquefaction risks on bulk cargoes carrying unamended & amended gebeng bauxite in accordance to international maritime solid bulk cargoes (imsbc) code
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/23617/
http://umpir.ump.edu.my/id/eprint/23617/
http://umpir.ump.edu.my/id/eprint/23617/1/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Table%20of%20contents.pdf
http://umpir.ump.edu.my/id/eprint/23617/2/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Abstract.pdf
http://umpir.ump.edu.my/id/eprint/23617/3/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20Chapter%201.pdf
http://umpir.ump.edu.my/id/eprint/23617/4/Liquefaction%20risks%20on%20bulk%20cargoes%20carrying%20unamended%20%26%20amended%20Gebeng%20bauxite%20in%20accordance%20to%20International%20Maritime%20Solid%20Bulk%20Cargoes%20%28IMSBC%29%20code%20-%20References.pdf
first_indexed 2023-09-18T22:35:27Z
last_indexed 2023-09-18T22:35:27Z
_version_ 1777416564708999168

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