| Title: | “The Impact of Expansion due to Alkali-Carbonate Reaction on Engineering Properties of Concrete” 1st International/1st Engineering Mechanics and Materials Specialty Conference” Proceedings of the Annual Conference of the Canadian Society for Civil Engineering, St. John’s NL, Canada, |
| Authors: | Radwan, R. Z., Shehata, M. H., Abdelaziz, G.E., El Hariri, M. O. R. and Abdelalim, A. M. K. |
| Year: | 2009 |
| Keywords: | Not Available |
| Journal: | Not Available |
| Volume: | Not Available |
| Issue: | Not Available |
| Pages: | Not Available |
| Publisher: | Not Available |
| Local/International: | International |
| Paper Link: | Not Available |
| Full paper | Gamal Elsayed Abdelaziz_Alkali carbonate reaction and engineering properties.pdf |
| Supplementary materials | Not Available |
| Abstract: |
This paper investigates the effects of different levels of expansion resulting from alkali-carbonate reaction (ACR) on mechanical properties of concrete at different ages. Concrete prisms and companion cylinders were cast with three aggregates that are non-reactive, marginally-reactive and highly-reactive, and cured under the same conditions. The concrete prisms showed 1-year expansion values of 0.021 %, 0.042 % and 0.271 % for the non-reactive, marginally-reactive and highly-reactive aggregates, respectively. In general, the results showed a reduction in mechanical strengths of concrete with increasing the expansion. However, the mechanical properties and permeability of concrete made with non-reactive and marginally-reactive aggregates were very close. It was concluded that up to 1 year of accelerated testing at 38°C, or up to an expansion value of about 0.04 %, the mechanical performance of concrete made with marginally carbonate reactive aggregates is not adversely affected. |
