Volume change behavior of lime treated gypseous soil - influence of mineralogy and microstructure
Data(s) |
2016
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Resumo |
Series of oedometer tests and micro-analytical studies (XRD, SEM and EDAX) have been carried out to investigate the influence of varying gypsum content on swell, compressibility and permeability of lime treated montmorillonitic soil after curing for different period. Immediate swell is observed on inundation of compacted samples with water and continuously increased with gypsum content. However, changes in swell are found to be marginal with curing. This is attributed to the formation and growth of ettringite crystals by ionic reactions of aluminum calcium-sulfate in the presence of water which is confirmed through detailed micro-analysis. The higher swell in uncured specimens and gradual reduction in swell with increase in curing periods are due to relative dominance of formation and growth of ettringite and cementitious compounds, respectively. Also, the ionic reaction products are found to bear a significant influence on the compressibility and permeability behavior. (C) 2015 Elsevier B.V. All rights reserved. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/53075/1/App_Cla_Sci_119_202_2016.pdf Jha, Arvind Kumar and Sivapullaiah, PV (2016) Volume change behavior of lime treated gypseous soil - influence of mineralogy and microstructure. In: APPLIED CLAY SCIENCE, 119 (2). pp. 202-212. |
Publicador |
ELSEVIER SCIENCE BV |
Relação |
http://dx.doi.org/10.1016/j.clay.2015.09.017 http://eprints.iisc.ernet.in/53075/ |
Palavras-Chave | #Civil Engineering |
Tipo |
Journal Article PeerReviewed |