Water desorption characteristic of red gypsum

Red gypsum (RG) is a waste that generated during the process of titanium dioxide production from ilmenite. It is a soil with reddish colour due to the present of iron. This reddish waste being highly produced every year in Malaysia, which is 341000 tonnes and they are mostly disposed to landfill. In...

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Main Author:	Lee, Cheng Yee
Format:	Undergraduates Project Papers
Language:	English English English
Published:	2015
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/12141/ http://umpir.ump.edu.my/id/eprint/12141/ http://umpir.ump.edu.my/id/eprint/12141/1/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29.pdf http://umpir.ump.edu.my/id/eprint/12141/2/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12141/3/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29%20-%20CHAP%203.pdf

id	ump-12141
recordtype	eprints
spelling	ump-121412016-03-17T02:07:30Z http://umpir.ump.edu.my/id/eprint/12141/ Water desorption characteristic of red gypsum Lee, Cheng Yee TP Chemical technology Red gypsum (RG) is a waste that generated during the process of titanium dioxide production from ilmenite. It is a soil with reddish colour due to the present of iron. This reddish waste being highly produced every year in Malaysia, which is 341000 tonnes and they are mostly disposed to landfill. In this study, the water desorption characteristic of Red Gypsum are tested as well as physical and chemical properties. The physical and chemical properties of Red Gypsum were determined. Other than that, a suction-water content soil-water characteristic curve (SWCC) is formed. The techniques used with the aim of obtaining the data for drying SWCC are vapour equilibrium and osmotic technique. In osmotic technique, the suction ranged from 0.23 to 3.28 MPa, while in vapour equilibrium technique, suctions used were between 3.6 to 111.77 MPa. . The result of SWCC able to give an important information about Red Gypsum. As a result, Red Gypsum has a soil suction around 22.5 MPa and gravimetric water content around 50 % at air entry value (AEV), while at residual condition, the gravimetric water content is 26% and soil suction is around 38 MPa. In conclusion, RG has the drying suction-water content soil-water characteristic curve which almost the same as yellow bentonite. So, it can have the applications as yellow bentonite. 2015-07 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12141/1/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12141/2/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29%20-%20CHAP%201.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12141/3/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29%20-%20CHAP%203.pdf Lee, Cheng Yee (2015) Water desorption characteristic of red gypsum. Faculty of Civil Engineering & Earth Resources, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:92077&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
topic	TP Chemical technology
spellingShingle	TP Chemical technology Lee, Cheng Yee Water desorption characteristic of red gypsum
description	Red gypsum (RG) is a waste that generated during the process of titanium dioxide production from ilmenite. It is a soil with reddish colour due to the present of iron. This reddish waste being highly produced every year in Malaysia, which is 341000 tonnes and they are mostly disposed to landfill. In this study, the water desorption characteristic of Red Gypsum are tested as well as physical and chemical properties. The physical and chemical properties of Red Gypsum were determined. Other than that, a suction-water content soil-water characteristic curve (SWCC) is formed. The techniques used with the aim of obtaining the data for drying SWCC are vapour equilibrium and osmotic technique. In osmotic technique, the suction ranged from 0.23 to 3.28 MPa, while in vapour equilibrium technique, suctions used were between 3.6 to 111.77 MPa. . The result of SWCC able to give an important information about Red Gypsum. As a result, Red Gypsum has a soil suction around 22.5 MPa and gravimetric water content around 50 % at air entry value (AEV), while at residual condition, the gravimetric water content is 26% and soil suction is around 38 MPa. In conclusion, RG has the drying suction-water content soil-water characteristic curve which almost the same as yellow bentonite. So, it can have the applications as yellow bentonite.
format	Undergraduates Project Papers
author	Lee, Cheng Yee
author_facet	Lee, Cheng Yee
author_sort	Lee, Cheng Yee
title	Water desorption characteristic of red gypsum
title_short	Water desorption characteristic of red gypsum
title_full	Water desorption characteristic of red gypsum
title_fullStr	Water desorption characteristic of red gypsum
title_full_unstemmed	Water desorption characteristic of red gypsum
title_sort	water desorption characteristic of red gypsum
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12141/ http://umpir.ump.edu.my/id/eprint/12141/ http://umpir.ump.edu.my/id/eprint/12141/1/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29.pdf http://umpir.ump.edu.my/id/eprint/12141/2/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29%20-%20CHAP%201.pdf http://umpir.ump.edu.my/id/eprint/12141/3/FKKSA%20-%20LEE%20CHENG%20YEE%20%28CD9225%29%20-%20CHAP%203.pdf
first_indexed	2023-09-18T22:13:28Z
last_indexed	2023-09-18T22:13:28Z
_version_	1777415181454802944

Water desorption characteristic of red gypsum

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