Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers
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2022
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my.unimap-746132022-03-10T08:37:52Z Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers Nur Ain, Jaya Nur Ain, Jaya Liew, Yun-Ming Mohd Mustafa Al Bakri, Abdullah Heah, Cheng-Yong Kamarudin, Hussin ainjaya@gmail.com Center of Excellence Geopolymer & Green Technology (CEGeoGTech), School of Materials Engineering (UniMAP) Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP) Sodium hydroxide (NaOH) Metakaolin geopolymers Geopolymers Link to publisher's homepage at https://iopscience.iop.org/ In the present work, the effect of different sodium hydroxide (NaOH) molarity (6M, 8M, 10M, 12M and 14M) on the physical, mechanical and thermal conductivity of metakaolin geopolymers (MkGPs) was investigated. Geopolymers were prepared by activating the metakaolin with a mixture of NaOH with sodium silicate (Na₂SiO₃). The products obtained were characterized after 28 days of curing. The density, porosity, compressive strength and thermal conductivity (TC) were determined. In general, the NaOH molarity has a significant effect on the compressive strength of the MkGPs. The highest compressive strength was 14.6 MPa achieved with 10M of NaOH solution. The thermal conductivity of MkGPs measured in this work was low in the range between 0.71-0.97 W/mK. NaOH molarity had a significant effect on compressive strength but a marginal effect on thermal conductivity of MkGPs. The thermal conductivity was mainly affected by the bulk density and thus the total porosity. The results showed that the geopolymer can be considered to be used as the thermal insulating material. 2022 2022-03-10T08:37:52Z 2022-03-10T08:37:52Z 2018-03 Article IOP Conference Services: Material Sciences Engineering, vol.343, 2017, 8 pages 1757-899x (online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74613 https://doi.org/10.1088/1757-899x/343/1/012015 en The International Conference and Exhibition in Advanced Materials and Microscopy 2017 (ICEAMM 2017); IOP Publishing Ltd |
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English |
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Sodium hydroxide (NaOH) Metakaolin geopolymers Geopolymers |
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Sodium hydroxide (NaOH) Metakaolin geopolymers Geopolymers Nur Ain, Jaya Nur Ain, Jaya Liew, Yun-Ming Mohd Mustafa Al Bakri, Abdullah Heah, Cheng-Yong Kamarudin, Hussin Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers |
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Link to publisher's homepage at https://iopscience.iop.org/ |
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ainjaya@gmail.com |
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ainjaya@gmail.com Nur Ain, Jaya Nur Ain, Jaya Liew, Yun-Ming Mohd Mustafa Al Bakri, Abdullah Heah, Cheng-Yong Kamarudin, Hussin |
| format |
Article |
| author |
Nur Ain, Jaya Nur Ain, Jaya Liew, Yun-Ming Mohd Mustafa Al Bakri, Abdullah Heah, Cheng-Yong Kamarudin, Hussin |
| author_sort |
Nur Ain, Jaya |
| title |
Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers |
| title_short |
Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers |
| title_full |
Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers |
| title_fullStr |
Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers |
| title_full_unstemmed |
Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers |
| title_sort |
effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers |
| publisher |
IOP Publishing Ltd |
| publishDate |
2022 |
| url |
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74613 |
| _version_ |
1729704782503870464 |
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13.211869 |