A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Importance of quantitative thermogravimetry on initial cement mass basis to evaluate the hydration of cement pastes and mortars
Thermogravimetric analysis (TG) curves of cement pastes and mortars are obtained by default on their respective initial sample mass basis. This fact does not allow a direct comparison of TG data of percentual mass losses due to the dehydration of a same hydrated component of differently aged pastes or mortars of same cement because the initial masses of the differently aged sample usually have different initial compositions. To solve this problem, one can transform the original thermal analysis curves from the initial sample mass basis to the initial cement mass basis, to have the same composition basis for any hydration time. This paper presents in detail how this can be done graphically and analytically and applies the method to study the evolution of cement hydration during the first 28 days of pastes and mortars prepared from the same type II cement. It also shows how to compare quantitatively the main cement hydrated phases formed during solidification and setting processes of pastes and mortars with different initial compositions as a function of hydration time.
Importance of quantitative thermogravimetry on initial cement mass basis to evaluate the hydration of cement pastes and mortars
Thermogravimetric analysis (TG) curves of cement pastes and mortars are obtained by default on their respective initial sample mass basis. This fact does not allow a direct comparison of TG data of percentual mass losses due to the dehydration of a same hydrated component of differently aged pastes or mortars of same cement because the initial masses of the differently aged sample usually have different initial compositions. To solve this problem, one can transform the original thermal analysis curves from the initial sample mass basis to the initial cement mass basis, to have the same composition basis for any hydration time. This paper presents in detail how this can be done graphically and analytically and applies the method to study the evolution of cement hydration during the first 28 days of pastes and mortars prepared from the same type II cement. It also shows how to compare quantitatively the main cement hydrated phases formed during solidification and setting processes of pastes and mortars with different initial compositions as a function of hydration time.
Importance of quantitative thermogravimetry on initial cement mass basis to evaluate the hydration of cement pastes and mortars
Dweck, J. (author) / Melchert, M.B.M. (author) / Viana, M.M. (author) / Cartledge, F.K. (author) / Büchler, P.M. (author)
2013
10 Seiten, 12 Bilder, 1 Tabelle, 27 Quellen
Conference paper
English
Quantitative determination of ettringite in cement pastes, mortars and concretes
| British Library Online Contents | 1993
Polymer impregnated hardened cement pastes and mortars
| TIBKAT | 1976
Rheology of cement pastes and fresh mortars
| Engineering Index Backfile | 1965
Cement pastes and mortars with low water-to-cement ratio I
| Elsevier | 1979
Hydration of Cement Pastes Using the Cement LC3
| Springer Verlag | 2019