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Updated: Jun 22, 2026

Detecting the Water-soluble Chloride Distribution of Cement Paste in a High-precision Way
Published on: November 21, 2017
Long-term leaching test of organo-contaminated cement-clay pastes
L Zampori1, P Gallo Stampino, G Dotelli
1Dipartimento di Chimica, Materiali e Ingegneria Chimica 'G.Natta', INSTM R.U.-Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy.
Abstract:
The aim of the present work is to investigate the effect of a prolonged leaching test (more than a year) on the microstructure of solidified cementitious wasteforms. A set of four different cement-based monoliths (Ap, Bp, Cp and Dp) was prepared, and for each series an uncontaminated sample was prepared as reference (A-D). An organoclay was added in all pastes as pre-sorbent material for the pollutant; a model liquid organic pollutant, 2-chloroaniline (2-CA), was added only in the contaminated ones and different types of admixtures, chosen among those typically employed in the concrete mix-design, were used. After the first 28 days of curing, all the monoliths, contaminated and uncontaminated, underwent a dynamic leach testing (DLT) for more than 1 year in deionized water.
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