M. Regourd, J.H. Thomassin
X-ray photoelectron spectrometry (XPS) was used to determine the variation of the characteristic ratios Ca/Si, Al/Si and Mg/Si of two different slags (one in granulated, the other in pelletized form) during hydration. The results show that the slag surface is modified as soon as it comes into contact with water or alkaline solutions. The hydrated superficial layer is depleted of calcium but contains alkali ions if NaOH or KOH solutions are used in mixing instead of water. This study indicates that the hydraulic properties of granulated and pelletized blast-furnace slags are influenced by their interaction with different solvents, which results in altered hydration behavior. The findings suggest that although both forms of slag exhibit hydraulic activity, their reactivity and the composition of the hydration products can vary significantly based on the presence of chemical modifiers such as calcium hydroxide and gypsum. Through the methodology employed, insights into the early stages of hydration and the resultant chemical environment around slag grains were garnered, emphasizing the necessity for a thorough understanding of slag chemistry in cement formulations.
@article{5d6a02cc-ab80-4a6b-b0ae-8454260ce053,
title={BLAST-FURNACE SLAG HYDRATION. SURFACE ANALYSIS},
author={M. Regourd and J.H. Thomassin},
year={1983},
language={fr}
}TY - JOUR TI - BLAST-FURNACE SLAG HYDRATION. SURFACE ANALYSIS AU - M. Regourd AU - J.H. Thomassin PY - 1983 LA - fr ER -
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