Mechanism of secondary ettringite formation in mortars and concretes subjected to heat treatment

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

108 Scopus citations

Abstract

In the last years, precast units made of high strength concrete, and having been heat treated during production, have shown partly damaged structure related to loss of strength. This damage always occurred in those building components which, for several years, had been subjected to open-air weathering (e.g., front panels and sleepers). The damage has often been characterized by crack formation emerging from the edges of the building components, as well as by a loss of bond between the cement paste and the coarse aggregate. In order to clarify this damage, a series of parameters have been examined as to their influence on the durability of heat treated concretes. Beside others, the investigation concentrated on the following subjects: the threshold temperature of damage, the SO content of the cement, the humidity of storage, and the w/c.

Original languageEnglish
Title of host publicationConcrete Durability
Subtitle of host publicationProceedings of Katharine and Bryant Mather International Symposium
EditorsJohn M. Scanlon
PublisherAmerican Concrete Institute
Pages2059-2071
Number of pages13
ISBN (Electronic)9780870315992
StatePublished - 1 Apr 1987
EventKatharine and Bryant Mather International Symposium on Concrete Durability 1987 - Atlanta, United States
Duration: 27 Apr 19871 May 1987

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-100
ISSN (Print)0193-2527

Conference

ConferenceKatharine and Bryant Mather International Symposium on Concrete Durability 1987
Country/TerritoryUnited States
CityAtlanta
Period27/04/871/05/87

Keywords

  • Concrete durability
  • Deterioration
  • Ettringite
  • Expansion
  • Heating
  • Humidity
  • Portland cements
  • Precast concrete
  • SOcontent
  • Temperature
  • Water-cement ratio

Fingerprint

Dive into the research topics of 'Mechanism of secondary ettringite formation in mortars and concretes subjected to heat treatment'. Together they form a unique fingerprint.

Cite this