Can superabsorent polymers mitigate autogenous shrinkage of internally cured concrete without compromising the strength?

Publication: Research - peer-reviewJournal article – Annual report year: 2012

View graph of relations

The paper “Super absorbing polymers as an internal curing agent for mitigation of early-age cracking of high-performance concrete bridge decks” deals with different aspects of using superabsorbent polymers (SAP) in concrete to mitigate self-desiccation. The paper concludes that “Addition of SAP leads to a significant reduction of mechanical strength”. The experimental results are in contradiction with several publications and question the appropriateness of using SAP as internal curing agent. However, the observed strength loss – and possibly also other observations – seems to be caused by overestimation of SAP water absorption. This results in an increase in water/cement ratio (w/c) for concrete with SAP. It is misleading to conclude on how SAP influences concrete properties, based on comparison of concrete mixes with SAP and reference concrete without SAP, if SAP mixes have higher w/c than the reference mix.
Original languageEnglish
JournalConstruction and Building Materials
Publication date2012
Volume31
Pages226-230
ISSN0950-0618
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 6

Keywords

  • Superabsorbent polymers, Autogenous shrinkage, Self-desiccation, Concrete, Compressive strength, Internal curing
Download as:
Download as PDF
Select render style:
APAAuthorCBEHarvardMLAStandardVancouverShortLong
PDF
Download as HTML
Select render style:
APAAuthorCBEHarvardMLAStandardVancouverShortLong
HTML
Download as Word
Select render style:
APAAuthorCBEHarvardMLAStandardVancouverShortLong
Word

ID: 6678460