Experimental Study on Fly-Ash Aggregate as a Lightweight Filler in a Structural Element

Experimental Study on Fly-Ash Aggregate as a Lightweight Filler in a Structural Element

S. Deepasree, V. Raguraman, R. Anuradha

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Abstract. Light-weight structures are widely used in the construction field. Light-weight fillers such as aggregates can be used to improve weightless structures. Generally, standard aggregates cannot be used to attain the desired weight for light-weight structures. To determine a light-weight filler, the aggregates are made by using fly-ash along with cement mortar. Fly ash was collected from the Mettur Thermal power plant. Cement and fly-ash were mixed in a concrete mixer in a proportion of 30:70 with a water-cement ratio of 0.3 and it is mixed until the pellets are formed. The aggregates are replaced at different percentages such as 0%, 10%, 20%, and 30% respectively to the coarse aggregate. The properties such as compressive strength, split tensile strength and flexural strength were taken. The maximum strength was attained at 30% of fly-ash aggregate with a compressive strength of 46.47 N/mm2, split tensile strength of 14.85 N/mm2 and flexural strength of 3.80 N/mm2.

Keywords
Lightweight Structure, Fly-Ash Aggregate, Sintering Effect, Compressive Strength, Split Tensile Strength, Flexural Strength

Published online 8/15/2021, 9 pages
Copyright © 2021 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: S. Deepasree, V. Raguraman, R. Anuradha, Experimental Study on Fly-Ash Aggregate as a Lightweight Filler in a Structural Element, Materials Research Proceedings, Vol. 19, pp 166-174, 2021

DOI: https://doi.org/10.21741/9781644901618-21

The article was published as article 21 of the book Recent Advancements in Geotechnical Engineering

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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