Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material

Pozzolanic reactive material is considered as one of the most essential characteristic of cementing additive material in concrete technology application. Normally, the reactive material contains abundant silica that enhances concrete strength activity. Undeniably, it is proven that rice husk ash (RH...

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Main Authors:	Saad, Siti Asmahani, Shafiq, Nasir, Ali, Maisarah, Mohamed Osman, Mariana
Format:	Conference or Workshop Item
Language:	English English
Published:	2018
Subjects:	TA401 Materials of engineering and construction
Online Access:	http://irep.iium.edu.my/69030/ http://irep.iium.edu.my/69030/3/IGRAD%202018_DOE.pdf http://irep.iium.edu.my/69030/21/69030%20schedule.pdf

id	iium-69030
recordtype	eprints
spelling	iium-690302019-01-10T02:50:51Z http://irep.iium.edu.my/69030/ Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material Saad, Siti Asmahani Shafiq, Nasir Ali, Maisarah Mohamed Osman, Mariana TA401 Materials of engineering and construction Pozzolanic reactive material is considered as one of the most essential characteristic of cementing additive material in concrete technology application. Normally, the reactive material contains abundant silica that enhances concrete strength activity. Undeniably, it is proven that rice husk ash (RHA) possesses large quantity of silica that induces the pozzolanic reaction in concrete. Nevertheless, usage of conventional RHA is still widely accepted in concrete industry nowadays. One of the setback of conventional RHA incorporation is simply because of its properties inconsistency. Therefore, enhancement on the RHA properties by introduction of a specific pretreatment prior to incineration process is expected to provide an alternative way in order to produce highly reactive cementing additive material from locally available agri-cultural by-product, the rice husk. In this paper, a total number of 30 experimental set points was conducted. Statistical analysis was con-ducted for four independent variables and two responses using Response Surface Method (RSM). The analysis was completed using a commercial software set (Design-Expert) for experimental design and analysis. The independent variables were HCl concentration, soaking time, burning temperature and soaking temperature. Meanwhile, the responses investigated in this study were including cumulative pozzolan percentage and electric conductivity decrement from 0 to 2 minutes. As for the statistical analysis of the data for response 1, the cumulative pozzolan percentage calculated from the model was in-line with the experimental data, with R-squared value of 0.9565. Hence, the result validates the precision of the model. On the other hand, the R-squared value for response 2 which is the EC decrement from 0 - 2 Minutes, it shows that the model was in agreement to the experimental values at 0.9342. Thus, it is again justifies the model accuracy. 2018 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/69030/3/IGRAD%202018_DOE.pdf application/pdf en http://irep.iium.edu.my/69030/21/69030%20schedule.pdf Saad, Siti Asmahani and Shafiq, Nasir and Ali, Maisarah and Mohamed Osman, Mariana (2018) Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material. In: International Graduate Conference on Energy, Engineering & Technology 2018 (iGRAD2018), 4th-6th September 2018, Putrajaya, Malaysia. (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TA401 Materials of engineering and construction
spellingShingle	TA401 Materials of engineering and construction Saad, Siti Asmahani Shafiq, Nasir Ali, Maisarah Mohamed Osman, Mariana Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material
description	Pozzolanic reactive material is considered as one of the most essential characteristic of cementing additive material in concrete technology application. Normally, the reactive material contains abundant silica that enhances concrete strength activity. Undeniably, it is proven that rice husk ash (RHA) possesses large quantity of silica that induces the pozzolanic reaction in concrete. Nevertheless, usage of conventional RHA is still widely accepted in concrete industry nowadays. One of the setback of conventional RHA incorporation is simply because of its properties inconsistency. Therefore, enhancement on the RHA properties by introduction of a specific pretreatment prior to incineration process is expected to provide an alternative way in order to produce highly reactive cementing additive material from locally available agri-cultural by-product, the rice husk. In this paper, a total number of 30 experimental set points was conducted. Statistical analysis was con-ducted for four independent variables and two responses using Response Surface Method (RSM). The analysis was completed using a commercial software set (Design-Expert) for experimental design and analysis. The independent variables were HCl concentration, soaking time, burning temperature and soaking temperature. Meanwhile, the responses investigated in this study were including cumulative pozzolan percentage and electric conductivity decrement from 0 to 2 minutes. As for the statistical analysis of the data for response 1, the cumulative pozzolan percentage calculated from the model was in-line with the experimental data, with R-squared value of 0.9565. Hence, the result validates the precision of the model. On the other hand, the R-squared value for response 2 which is the EC decrement from 0 - 2 Minutes, it shows that the model was in agreement to the experimental values at 0.9342. Thus, it is again justifies the model accuracy.
format	Conference or Workshop Item
author	Saad, Siti Asmahani Shafiq, Nasir Ali, Maisarah Mohamed Osman, Mariana
author_facet	Saad, Siti Asmahani Shafiq, Nasir Ali, Maisarah Mohamed Osman, Mariana
author_sort	Saad, Siti Asmahani
title	Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material
title_short	Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material
title_full	Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material
title_fullStr	Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material
title_full_unstemmed	Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material
title_sort	analysis by means of surface response to chemical composition and pozzolanic reactivity of ultrafine treated rice husk ash (uftrha) as cementing additive material
publishDate	2018
url	http://irep.iium.edu.my/69030/ http://irep.iium.edu.my/69030/3/IGRAD%202018_DOE.pdf http://irep.iium.edu.my/69030/21/69030%20schedule.pdf
first_indexed	2023-09-18T21:37:57Z
last_indexed	2023-09-18T21:37:57Z
_version_	1777412947530743808

Analysis by means of surface response to chemical composition and pozzolanic reactivity of Ultrafine Treated Rice Husk Ash (UFTRHA) as cementing additive material

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