Evaluation of hardened state properties of GGBS-PC mortars modified by superabsorbent polymers (SAP)

Fernando Do Couto Rosa Almeida, Agnieszka Klemm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper evaluates the effects of superabsorbent polymers (SAP) on autogenous shrinkage, mechanical properties and microstructural characteristics of mortars with different levels of cement replacement by ground granulated blast-furnace slag (GGBS). Two types of SAPs with different water absorption capacities in cement-paste solution have been considered. The effects of SAP on mortars have been assessed during the first 28 days. The results showed that both polymers used notably reduce autogenous shrinkage. Moreover, the type of SAP has an effect on the pore structure formation in hardened mortars and consequently influences their mechanical properties.
Original languageEnglish
Title of host publicationConcrete with Supplementary Cementitious Materials
Subtitle of host publicationInternational RILEM Conference on Materials, Systems and Structures in Civil Engineering Conference
EditorsOle Jensen, Konstantin Kovler, Nele De Belie
PublisherRILEM
Pages11-20
Number of pages9
ISBN (Electronic)978-2-35158-179-7
ISBN (Print)978-2-35158-178-0
Publication statusPublished - 24 Aug 2016

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Keywords

  • GGBS-PC mortars
  • superabsorbent polymers
  • mortars

Cite this

Do Couto Rosa Almeida, F., & Klemm, A. (2016). Evaluation of hardened state properties of GGBS-PC mortars modified by superabsorbent polymers (SAP). In O. Jensen, K. Kovler, & N. De Belie (Eds.), Concrete with Supplementary Cementitious Materials: International RILEM Conference on Materials, Systems and Structures in Civil Engineering Conference (pp. 11-20). RILEM.