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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/69030/3/IGRAD%202018_DOE.pdf
http://irep.iium.edu.my/69030/21/69030%20schedule.pdf
http://irep.iium.edu.my/69030/
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spelling my.iium.irep.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)
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
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/69030/3/IGRAD%202018_DOE.pdf
http://irep.iium.edu.my/69030/21/69030%20schedule.pdf
http://irep.iium.edu.my/69030/
_version_ 1643618699346706432
score 13.211869

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