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RieCalc : quantitative phase analysis of hydrating cement pastes
Author(s) -
Valentini Luca
Publication year - 2013
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889813022863
Subject(s) - calcium silicate hydrate , hydrate , cement , phase (matter) , isothermal process , calorimetry , rietveld refinement , materials science , capillary action , amorphous solid , calcium silicate , analytical chemistry (journal) , mineralogy , chemistry , thermodynamics , composite material , crystallography , chromatography , crystal structure , physics , organic chemistry
The MATLAB program RieCalc , developed for the quantitative phase analysis of hydrating cement pastes, is presented. Rietveld refined data obtained from in situ X‐ray diffraction measurements are used as input and loaded by means of a simple graphical user interface. Time‐resolved phase fractions are rescaled by a mass balance method, which calculates the amounts of amorphous phases (calcium silicate hydrate and capillary water) present in the system. Furthermore, RieCalc calculates theoretical curves that simulate those obtained from isothermal calorimetry measurements.