Factors Affecting Carbonation Depth in Foamed Concrete Bricks for Accelerate CO 2 Sequestration

Abdullah Faisal Alshalif, J. M. Irwan, Husnul Azan Tajarudin, N. Othman, A. A. Al-Gheethi, S. Shamsudin, Wahid Ali Hamood Altowayti and Saddam Abo Sabah
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Abdullah Faisal Alshalif: Jamilus Research Centre for Sustainable Construction (JRC-SC), Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia
J. M. Irwan: Jamilus Research Centre for Sustainable Construction (JRC-SC), Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia
Husnul Azan Tajarudin: Division of Bioprocess, School of Industrial Technology, Universiti Sains Malaysia, Gelugor 11800, Pulau Pinang, Malaysia
N. Othman: Micro-Pollutant Research Centre (MPRC), Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia
A. A. Al-Gheethi: Micro-Pollutant Research Centre (MPRC), Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia
S. Shamsudin: Sustainable Manufacturing and Recycling Technology, Advanced Manufacturing and Materials Center (SMART-AMMC), Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia
Wahid Ali Hamood Altowayti: Micro-Pollutant Research Centre (MPRC), Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia
Saddam Abo Sabah: Jamilus Research Centre for Sustainable Construction (JRC-SC), Faculty of Civil Engineering and Built Environment, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Johor, Malaysia

Sustainability, 2021, vol. 13, issue 19, 1-15

Abstract: Foamed concrete bricks (FCB) have high levels of porosity to sequestrate atmospheric CO 2 in the form of calcium carbonate CaCO 3 via acceleration of carbonation depth. The effect of density and curing conditions on CO 2 sequestration in FCB was investigated in this research to optimize carbonation depth. Statistical analysis using 2 k factorial and response surface methodology (RSM) comprising 11 runs and eight additional runs was used to optimize the carbonation depth of FCB for 28 days (d). The main factors selected for the carbonation studies include density, temperature and CO 2 concentration. The curing of the FCB was performed in the chamber. The results indicated that all factors significantly affected the carbonation depth of FCB. The optimum carbonation depth was 9.7 mm, which was determined at conditions; 1300 kg/m 3 , 40 °C, and 20% of CO 2 concentration after 28 d. Analysis of variance (ANOVA) and residual plots demonstrated the accuracy of the regression equation with a predicted R 2 of 89.43%, which confirms the reliability of the predicted model.

Keywords: carbonation depth; chamber; temperature; statistical analysis; 2 k factorial; RSM (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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