1-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated Slag

Improvements of soft soils by mechanically mixing cementitious additives have been widely practised for construction of infrastructure. Mixing of additives improves strength and compressibility properties of soils through the development of soil structure. This study investigates the 1-D compression...

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Main Authors: Shahidul Islam, Asadul Haque, Ha Hong Bui
Format: Article
Language:English
Published: MDPI AG 2016-04-01
Series:Materials
Subjects:
Online Access:http://www.mdpi.com/1996-1944/9/4/289
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author Shahidul Islam
Asadul Haque
Ha Hong Bui
author_facet Shahidul Islam
Asadul Haque
Ha Hong Bui
author_sort Shahidul Islam
collection DOAJ
description Improvements of soft soils by mechanically mixing cementitious additives have been widely practised for construction of infrastructure. Mixing of additives improves strength and compressibility properties of soils through the development of soil structure. This study investigates the 1-D compression behaviour of alkali-activated slag treated acid sulphate soils (ASS) cured up to 365 days. The void ratio-logarithm of pressure (e-logσ′) behaviour of treated ASS, including the destructuration behaviour, with additive contents and curing time have been analysed. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses have been undertaken to explain the observed variations of the 1-D compression behaviour. This paper presents the results of these analyses in view of obtaining an insight into the 1-D compression behaviour of treated ASS with the help of mineralogical analysis.
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spelling doaj.art-e13d00a8d3444a3499f862eede4dc7c82022-12-22T02:57:27ZengMDPI AGMaterials1996-19442016-04-019428910.3390/ma9040289ma90402891-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated SlagShahidul Islam0Asadul Haque1Ha Hong Bui2Department of Civil Engineering, Monash University, Melbourne, VIC 3800, AustraliaDepartment of Civil Engineering, Monash University, Melbourne, VIC 3800, AustraliaDepartment of Civil Engineering, Monash University, Melbourne, VIC 3800, AustraliaImprovements of soft soils by mechanically mixing cementitious additives have been widely practised for construction of infrastructure. Mixing of additives improves strength and compressibility properties of soils through the development of soil structure. This study investigates the 1-D compression behaviour of alkali-activated slag treated acid sulphate soils (ASS) cured up to 365 days. The void ratio-logarithm of pressure (e-logσ′) behaviour of treated ASS, including the destructuration behaviour, with additive contents and curing time have been analysed. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses have been undertaken to explain the observed variations of the 1-D compression behaviour. This paper presents the results of these analyses in view of obtaining an insight into the 1-D compression behaviour of treated ASS with the help of mineralogical analysis.http://www.mdpi.com/1996-1944/9/4/2891-D compression behaviouralkali-activated slagacid sulphate soilmicrostructural analysissoil improvement
spellingShingle Shahidul Islam
Asadul Haque
Ha Hong Bui
1-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated Slag
Materials
1-D compression behaviour
alkali-activated slag
acid sulphate soil
microstructural analysis
soil improvement
title 1-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated Slag
title_full 1-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated Slag
title_fullStr 1-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated Slag
title_full_unstemmed 1-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated Slag
title_short 1-D Compression Behaviour of Acid Sulphate Soils Treated with Alkali-Activated Slag
title_sort 1 d compression behaviour of acid sulphate soils treated with alkali activated slag
topic 1-D compression behaviour
alkali-activated slag
acid sulphate soil
microstructural analysis
soil improvement
url http://www.mdpi.com/1996-1944/9/4/289
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