Effects of curing environment on the strength and mineralogy of lime-GGBS-treated acid sulphate soils

Shahi Taphsir Islam, Asadul Haque, Siobhan Wilson

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Abstract

This paper investigates the effect of curing environment on the strength and modal mineralogy of synthetically prepared acid sulphate soils (ASS) treated with lime and ground granulated blast furnace slag (GGBS). The treated samples were cured under various environmental conditions for up to 365days and tested for pH, unconfined compressive strength (UCS), and changes in modal mineralogy using powder X-ray diffraction (XRD). Quantitative analysis of XRD patterns (QXRD) was carried out using the Rietveld method. Results show that a lower temperature curing environment (15 wt ) are observed to have an adverse effect on the UCS after 180days of curing because of the formation of deleterious minerals (i.e.,thaumasite).
Original languageEnglish
Pages (from-to)1003 - 1008
Number of pages6
JournalJournal of Materials in Civil Engineering
Volume26
Issue number5
DOIs
Publication statusPublished - 2014

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