Utilization of rice husk ash as reactive filler for enhancing material properties of ultra-high performance concrete

Author(s): Sung-Hoon Kang, Yang-Hee Kwon and Juhyuk Moon
Paper category: Proceedings
Book title: Proceedings of the International Conference on Sustainable Materials, Systems and Structures (SMSS2019) New Generation of Construction Materials
Editor(s): Marijana Serdar, Nina Štirmer, John Provis
ISBN: 978-2-35158-217-6,
Vol 1. ISBN: 978-2-35158-223-7
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 448-455
Total Pages: 8
Language : English

Abstract: Significant amounts of rice husk ash (RHA) are currently being generated annually as a byproduct of rice production. In this study, we used this waste product as a reactive filler to produce an eco-friendly ultra-high performance concrete (UHPC). This approach replaced inert quartz filler with the reactive RHA filler, with the intention of increasing the amorphous silica content in UHPC while maintaining the physical role of the micron-sized conventional filler. In addition, due to the porous structure of RHA, internal curing effect may be expected, which can promote the hydration reaction over a long period of time. Experimental results proves this approach as we confirmed outstanding mechanical strength of UHPC without heat treatment.

Online publication : 2019
Publication type : full_text
Public price (Euros) : 0.00

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