Language selection

Government of Canada / Gouvernement du Canada

Search

Influence of triethanolamine on the hydration characteristics of tricalcium silicate

From National Research Council Canada

Download
  1. (PDF, 1.2 MiB)
AuthorSearch for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
SubjectConcrete; concrete admixtures; cement; hydration; compressive strength
Abstract
The hydration characteristics of 3CaO.SiO₂ or beta2CaO.SiO₂ are studied by an addition of 0.0, 0.1, 0.5 or 1.0% triethanolamine. The amount of Ca(OH)₂ found at 1, 3, 7 or 28 days was in the order C₃S + 0% TEA > C₃S + 0.1% TEA > C₃S + 0.5% TEA > C₃S + 1.0% TEA, irrespective of whether lime was estimated by X-ray, DTA, TGA or chemical analysis. The rate of hydration, in terms of the disappearance of 3CaO.SiO₂, showed that hydration proceeded faster in the presence of TEA after 1 day. Additions of TEA increase the induction period, promote the formation of a C-S-H with higher CaO/SiO₂ ratio, increase the formation of non-crystalline Ca(OH)₂ and enhance the surface area of the hydrated silicate product.
Publication date
In
  • Journal of Applied Chemistry and Biotechnology 22 (1 December 1972): 1125–1138.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-RP-542
NRC numberNRCC 12893
NRC-IRC-2998
NPARC number20375089
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifier7877be5b-d657-44be-8962-5e5096c91d80
Record created2012-07-23
Record modified2024-01-16
Date modified: