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A REVIEW OF THE USE OF SUGARCANE BAGASSE ASH WITH A HIGH LOI CONTENT TO PRODUCE SUSTAINABLE CEMENT COMPOSITES



Author(s): M. A. Maldonado-García, P. Montes-García, P. L. Valdez-Tamez
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference
on Bio-Based Building Materials
Editor(s): Sofiane AMZIANE, Mohammed SONEBI and Karine CHARLET
ISBN:
e-ISBN: 978-2-35158-192-6
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 617-625
Total Pages: 9
Language : English


Abstract: In recent years, agricultural wastes have been employed as supplementary cementitious
materials to produce sustainable cement composites. One of these wastes is the sugarcane
bagasse ash (SCBA). The SCBA is available in large quantities in developing countries such as
Brazil, India and Mexico, and its disposal is causing different environmental issues. The SCBA
has high amounts of silicon, aluminum and iron oxides as major components. Several
researchers report that the high amount of these oxides leads to the improvement of the
mechanical and microstructural properties of cementing composites containing the SCBA. On
the other hand, a high amount of unburned carbon, commonly expressed by the loss on ignition
(LOI), could be also present in the SCBA due the inefficient burning process of the bagasse in
the boiler in sugar mills. It has been reported that this high LOI content in the SCBA change the
water requirement and the rheological properties of cement binders. This might adversely affect
the mechanical, microstructural and durability properties of hardened cement composites
prepared with this material as well. In order to decrease the LOI content of the SCBA the
combination of sieving, grinding and recalcination have been proposed; however, these methods
are highly demanding in energy and generate additional contaminants. Sieving is the less energy
demanding procedure and appears to be an interesting approach to post-treat the existing SCBA
in open damps. Based on the above, this paper presents a review on the effects of the use of
SCBA with a high LOI content to manufacture cement composites.


Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00


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