RT Journal Article
T1 3D computational simulation of calcium leaching in cement matrices
A1 Gaitero, J. J.
A1 Dolado, J. S.
A1 Neuen, C.
A1 Heber, F.
A1 Koenders, E. A.B.
AB Calcium leaching is a degradation process consisting in progressive dissolution of the cement paste by migration of calcium atoms to the aggressive solution. It is therefore, a complex phenomenon involving several phases and dissolution and diffusion processes simultaneously. Along this work, a new computational scheme for the simulation of the degradation process in three dimensions was developed and tested. The toolkit was used to simulate accelerated calcium leaching by a 6M ammonium nitrate solution in cement matrices. The obtained outputs were the three dimensional representation of the matrix and the physicochemical properties of individual phases as a consequence of the degradation process. This not only makes it possible to study the evolution of such properties as a function of time but also as a function of the position within the matrix. The obtained results are in good agreement with experimental values of the elastic modulus in degraded and undegraded samples.
SN 0465-2746
YR 2014
FD 2014-10-01
LK https://hdl.handle.net/11556/3939
UL https://hdl.handle.net/11556/3939
LA eng
NO Gaitero , J J , Dolado , J S , Neuen , C , Heber , F & Koenders , E A B 2014 , ' 3D computational simulation of calcium leaching in cement matrices ' , Materiales de Construccion , vol. 64 , no. 316 . https://doi.org/10.3989/mc.2014.08813
NO Publisher Copyright: Copyright © 2014 CSIC.
DS TECNALIA Publications
RD 30 jul 2024