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- Title
Evaluation of Delayed Ettringite Formation through Physical, Mechanical, and Microstructural Assays.
- Authors
Schovanz, D.; Tiecher, F.; Haspary, N. P.; Kuperman, S.; Lermen, R. T.
- Abstract
This experimental study evaluated the influence of delayed ettringite formation (DEF) on physical and mechanical properties and also microstructural characteristics of concretes cast in laboratory for 6 months. The results show that DEF can generate high expansions, in the order of 1%, and reduce mechanical properties, such as compressive strength, tensile strength, and the modulus of elasticity by more than 50%. Already in the 28th day, the presence of ettringite could be identified in the concrete matrix. The results of the study indicate high premature deterioration of the concrete and, consequently, its disqualification for use after the thermal cure adopted.
- Publication
ACI Materials Journal, 2021, Vol 118, Issue 1, p101
- ISSN
0889-325X
- Publication type
Academic Journal
- DOI
10.14359/51728282