Thaumasite sulphate attack on self-compacting concrete with limestone filler

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The paper deals with durability of Self-Compacting Concrete with limestone filler during Thaumasite Sulphate Attack. For this purpose six concrete with varying amounts of limestone filler, particle size of limestone filler, pressure height during casting and mixing order were studied. One normal concrete (without limestone filler) with vibrator compaction was studied in parallel. In the ongoing experiment the specimen are kept at 5 degrees C in a solution sodium sulphate with circulation with a propeller. The solution is being change every third month. Only low-alkali sulphate resistant cement was used as binder but limestone filler seem to have some effect on the hydration as well. The results show a sudden breakdown after five years due to Thaumasite Sulphate Attack similar to salt-frost scaling of all concrete with limestone filler. The normal concrete without limestone filler is still performing well after six years in the very same basin as the concrete with limestone filler. The ongoing research was performed at Lund Institute of Technology, Lund, Sweden, 2000-2006.

Details

Authors
  • Bertil Persson
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Materials Engineering
Original languageEnglish
Title of host publicationSustainable Construction Materials and Technologies
PublisherTaylor & Francis
Pages461-470
ISBN (Print)978-0-415-44689-1
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes
EventInternational Conference on Sustainable Construction Materials and Technologies - Coventry, England
Duration: 2007 Jun 112007 Jun 13

Conference

ConferenceInternational Conference on Sustainable Construction Materials and Technologies
Period2007/06/112007/06/13