Influence of recycling fluid catalytic cracking on properties of fresh cement pastes

Title: Influence of recycling fluid catalytic cracking on properties of fresh cement pastes
Author(s): S.M.M. Pinheiro, J.R. Marçal and G. Camarini
Paper category : conference
Book title: 2nd International RILEM Conference on Progress of Recycling in the Built Environment
Editor(s): V.M. John, E. Vazquez, S.C. Angulo, C. Ulsen
e-ISBN: 978-2-35158-122-3
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 297 - 308
Total Pages: 12
Nb references: 15
Language: English

Abstract: Industry wastes used as a supplementary or mineral addition in cementitious materials have always become “by-products” and not wastes. These by-products when incorporated into cements diminish the environment impact, reduce the cement consumption and improve several properties on fresh and hardened mortars and concretes. Fluid catalytic cracking waste (FCCW) produced at petroleum industries is a by-product that can be used as a mineral addition in cements. Researches had been attained and results showed that it has pozzolanic characteristics. The study of this by-product is recent and its influence on the cementitious materials could be more understanding. The aim of this work was to verify FCCW influence on properties of fresh paste, such as setting time, temperature evolution during setting and the consistency of mortars. Pastes and mortars studied were produced with natural and grounded FCCW (30% cement replacement by mass). Results showed that FCCW, when used as supplementary material in cement, affect the workability, reduces setting time, increasing the kinetics reaction and mortars consistency.

Online publication: 2012-02-08
Publication type : full_text
Public price (Euros): 0.00

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