Abstract
In this article the sound velocity through a mix is correlated to the hydration degree of
the mix. Models are presented predicting the sound velocity through fresh slurries and
hardened products. These two states correspond to the starting and finishing point of the hydration process. The present research shows that a linear relation between the amount of hydration-product (gypsum) formed (Smith et al., 2002) and sound velocity can be used to describe this process. To this end, the amount of hydration-product formed is determined by the using the equations of Schiller (1974) for the hydration process and of Brouwers (2010) for the volume fractions of binder, water and hydration products during the hydration process. The presented model shows that the induction time and gypsum growth rate are linear related to the water/gypsum-ratio.
Original language | English |
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Title of host publication | Tagungsbericht 1. Weimarer Gipstagung, 30. - 31. März 2011, Weimar, Bundesrepublik Deutschland |
Editors | H.B. Fischer, Chr. Mattes, C. Beutha |
Place of Publication | Germany |
Publisher | F.A. Finger-Institut für Baustoffkunde |
Pages | 65-71 |
ISBN (Print) | 9783000340741 |
Publication status | Published - 2011 |
Event | conference; The Weimar gypsum conference; 2011-03-30; 2011-03-31 - Duration: 30 Mar 2011 → 31 Mar 2011 |
Conference
Conference | conference; The Weimar gypsum conference; 2011-03-30; 2011-03-31 |
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Period | 30/03/11 → 31/03/11 |
Other | The Weimar gypsum conference |