Publication Type Journal Article
Title Durability performance of concrete incorporating spent fluid cracking catalyst
Authors R. Neves C. Vicente A S Castela Maria F. Montemor
Groups CSSE
Journal CEMENT \& CONCRETE COMPOSITES
Year 2015
Month January
Volume 55
Number
Pages 308-314
Abstract The petrochemical industry uses, in its fluid catalytic cracking units, zeolites as catalysts. After several cycles of use and regeneration, the fluid cracking catalyst becomes spent (SFCC). Given its chemical composition (aluminosilicates), SFCC may be used as admixtures in mortar and concrete production. The aim of this study was to investigate the influence of SFCC in durability related properties of concrete, namely in air permeability, capillary suction, carbonation and chloride resistance, considering also its simultaneous use with corrosion inhibitors. An experimental program was developed comprising four concrete mixes, sampled in two batches. The water-binder (cement + SFCC) ratio and the plasticizer dosage were kept constant. Statistical analyses of results were performed. Although no synergic effect of the combined use of SFCC and corrosion inhibitor was found, SFCC revealed to be an interesting supplementary cementing material for concrete regarding its durability and the associated positive environmental impacts. (C) 2014 Elsevier Ltd. All rights reserved.
DOI http://dx.doi.org/10.1016/j.cemconcomp.2014.09.018
ISBN
Publisher
Book Title
ISSN 0958-9465
EISSN 1873-393X
Conference Name
Bibtex ID ISI:000346224600034
Observations
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