Experimental Investigation and Image Processing to Predict the Properties of Concrete with the Addition of Nano Silica and Rice Husk Ash

UBC Faculty Research and Publications

Experimental Investigation and Image Processing to Predict the Properties of Concrete with the Addition of Nano Silica and Rice Husk Ash Avudaiappan, Siva; Prakatanoju, Supriya; Amran, Mugahed; Aepuru, Radhamanohar; Saavedra Flores, Erick I.; Das, Raj; Gupta, Rishi; Fediuk, Roman; Vatin, Nikolai

Abstract

The use of the combination of ultrafine rice husk ash (RHA) and nano silica (NS) enhances the compactness of hardened concrete, but there is still a lack of studies that address the effects of NS and RHA on the workability, mechanical properties and pore microstructure of concrete. This study mainly aims to investigate the influence of the pore size distribution in multiphysics concrete model modified by NS and RHA and to determine the workability and mechanical properties of concrete with NS and RHA. In this work, NS and RHA were used as 0, 5, 10, 15 and 20% replacements of ordinary Portland cement (OPC) in concrete grade M20. Concrete mixed with NS and RHA showed improved performance for up to 10% addition of NS and RHA. Further addition of NS and RHA showed a decrease in performance at 7, 14 and 28 days. The decrease in concrete porosity was also found to be up to 10% when adding NS and RHA to cement. Image processing was performed on the cement-based materials to describe the microstructure of the targeted material without damage. The results from the experimental and tomography images were utilized to investigate the concrete microstructure and predict its inner properties.

Item Metadata

Title	Experimental Investigation and Image Processing to Predict the Properties of Concrete with the Addition of Nano Silica and Rice Husk Ash
Creator	Avudaiappan, Siva; Prakatanoju, Supriya; Amran, Mugahed; Aepuru, Radhamanohar; Saavedra Flores, Erick I.; Das, Raj; Gupta, Rishi; Fediuk, Roman; Vatin, Nikolai
Publisher	Multidisciplinary Digital Publishing Institute
Date Issued	2021-10-12
Description	The use of the combination of ultrafine rice husk ash (RHA) and nano silica (NS) enhances the compactness of hardened concrete, but there is still a lack of studies that address the effects of NS and RHA on the workability, mechanical properties and pore microstructure of concrete. This study mainly aims to investigate the influence of the pore size distribution in multiphysics concrete model modified by NS and RHA and to determine the workability and mechanical properties of concrete with NS and RHA. In this work, NS and RHA were used as 0, 5, 10, 15 and 20% replacements of ordinary Portland cement (OPC) in concrete grade M20. Concrete mixed with NS and RHA showed improved performance for up to 10% addition of NS and RHA. Further addition of NS and RHA showed a decrease in performance at 7, 14 and 28 days. The decrease in concrete porosity was also found to be up to 10% when adding NS and RHA to cement. Image processing was performed on the cement-based materials to describe the microstructure of the targeted material without damage. The results from the experimental and tomography images were utilized to investigate the concrete microstructure and predict its inner properties.
Subject	image processing; nano silica; rice husk ash; pore microstructure; multiphysics concrete model; properties
Genre	Article
Type	Text
Language	eng
Date Available	2021-11-09
Provider	Vancouver : University of British Columbia Library
Rights	CC BY 4.0
DOI	10.14288/1.0403350
URI	http://hdl.handle.net/2429/80164
Affiliation	Applied Science, Faculty of; Non UBC; Civil Engineering, Department of
Citation	Crystals 11 (10): 1230 (2021)
Publisher DOI	10.3390/cryst11101230
Peer Review Status	Reviewed
Scholarly Level	Faculty
Rights URI	https://creativecommons.org/licenses/by/4.0/
Aggregated Source Repository	DSpace

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