In this work, a numerical model is presented to predict the self-sealing effect provided by superabsorbent polymers (SAP) admixtures in mortar. Firstly, the use of a law of absorption kinetics for SAP embedded in a cementitious matrix was validated with experimental results available in literature. Secondly, two extreme strategies are considered for the swelling of SAP in the crack regarding the variation in its deformation capacity under constraint. The results show the appropriateness of the SAP absorption law and explain the mechanisms of water absorption of mortar with such admixtures. Furthermore, the influence of the deformation capacity of SAP on the water penetration in cracks is studied parametrically.
Original languageEnglish
Title of host publicationProceedings of the Symposium on Concrete Modelling
Subtitle of host publicationCONMOD2018 27-30 August 2018 – Delft, Netherlands
EditorsErik Schlangen, Geert de Schutter, Branko Šavija, Hongzhi Zhang, Claudia Romero Rodriguez
PublisherRilem
Pages333-341
VolumePRO 127
ISBN (Electronic)978-2-35158-216-9
Publication statusPublished - 2018
EventSymposium on Concrete Modelling - Delft, Netherlands
Duration: 27 Aug 201830 Aug 2018

Publication series

NameRilem proceedings
PublisherRilem
NumberPRO 127

Conference

ConferenceSymposium on Concrete Modelling
Abbreviated titleCONMOD2018
CountryNetherlands
CityDelft
Period27/08/1830/08/18

ID: 46713080