Author(s)

Carla Costa^1*, M. Sofia Ribeiro², Nuno Brito¹

¹Department of Civil Engineering, High Institute of Engineering of Lisbon (ISEL), Lisbon, Portugal.
²Materials Department, National Laboratory for Civil Engineering (LNEC), Lisbon, Portugal.

This paper presents research on transport properties and alkali-silica reaction (ASR) susceptibility of mortars containing a pozzolanic waste generated in the fluid catalytic cracking (wFCC) unit by the Portuguese oil-refinery. For this purpose, two series of mortars were prepared by partially replacing cement with 5%, 10% and 15% of wFCC catalyst. The main difference between the two series of mortars is the sand reactivity used in their composition. The results revealed that wFCC catalyst blended cement mortars exhibit an increased resistance against capillary water absorption and chloride migration, as well as a considerable inhibition effect on deleterious ASR expansion. However, under the adopted experimental conditions the incorporation of wFCC catalyst in mortars decreases their carbonation resistance.

Waste Oil-Cracking Catalyst, Blended Cement Mortars, Water Absorption, Chloride Migration, Resistance to Carbonation, Alkali-Silica Reaction, Durability

Costa, C. , Ribeiro, M. and Brito, N. (2014) Effect of Waste Oil-Cracking Catalyst Incorporation on Durability of Mortars. Materials Sciences and Applications, 5, 905-914. doi: 10.4236/msa.2014.513092.