Durability of concretes containing sugar cane bagasse ash

Authors: E.M.R. Fairbairn, G.C. Cordeiro, R.D. Toledo Filho, M.M. Silvoso, T.P. de Paula, B.B. Americano
Paper category: conference
Book title: Concrete Durability and Service Life Planning – ConcreteLife’09
Editor(s): K. Kovler
Print ISBN: 978-2-35158-074-5
e-ISBN: 978-2-35158-085-1
Publisher: RILEM Publications SARL
Publication year: 2009
Pages: 343 – 350
Total Pages: 8
Language: English

Abstract: Cement production gives rise to CO2 emissions generated by the calcination of CaCO3 and by the combustion of fossil fuels, being responsible for about 5% of the global CO2 emissions in the world. This can be substantially reduced if cement replacement materials such as sugar cane bagasse ash (SCBA) are used. Within the framework of a comprehensive research concerning this residual of the sugar and ethanol agro-industries, we studied some durability characteristics of concretes made with SCBA. In this paper we report the results of the tests carried out on chloride ion penetration and water sorption. Also, aiming the use of SCBA in large scale as cement replacement, we present a study about the potential of the residue to be elected as carbon credits by the Kyoto protocol established methodologies. The results indicated that the SCBA improves concrete durability and that this material reduces CO2 emissions being a potential candidate for carbon credit projects.

Online publication: 2012-05-16
Publication Type: full_text
Public price (Euros): 0.00