Kaolin-based geopolymers with various NaOH concentrations
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2014
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my.unimap-331852014-03-28T03:10:57Z Kaolin-based geopolymers with various NaOH concentrations Heah, Cheng Yong Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. Mohd Mustafa Al-Bakri, Abdullah Mohamed, Bnhussain, Prof. Dr. Luqman, Musa, Dr. Khairul Nizar, Ismail, Assoc. Prof. Dr. Che Mohd Ruzaidi, Ghazali, Prof. Madya Liew, Yun Ming chengyongheah@gmail.com vc@unimap.edu.my mustafa_albakri@unimap.edu.my luqman@unimap.edu.my nizar@unimap.edu.my ruzaidi@unimap.edu.my yun86_liew@yahoo.com Compressive strength Geopolymers Kaolin Sodium hydroxide Link to publisher's homepage at http://link.springer.com/ Kaolin geopolymers were produced by the alkali-activation of kaolin with an activator solution (a mixture of NaOH and sodium silicate solutions). The NaOH solution was prepared at a concentration of 6-14 mol/L and was mixed with the sodium silicate solution at a Na2SiO3/NaOH mass ratio of 0.24 to prepare an activator solution. The kaolin-to-activator solution mass ratio used was 0.80. This paper aimed to analyze the effect of NaOH concentration on the compressive strength of kaolin geopolymers at 80 C for 1, 2, and 3 d. Kaolin geopolymers were stable in water, and strength results showed that the kaolin binder had adequate compressive strength with 12 mol/L of NaOH concentration. When the NaOH concentration increased, the SiO 2/Na2O decreased. The increased Na2O content enhanced the dissolution of kaolin as shown in X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analyses. However, excess in this content was not beneficial for the strength development of kaolin geopolymers. In addition, there was the formation of more geopolymeric gel in 12 mol/L samples. The XRD pattern of the samples showed a higher amorphous content and a more geopolymer bonding existed as proved by FTIR analysis. 2014-03-28T03:10:57Z 2014-03-28T03:10:57Z 2013-03 Article International Journal of Minerals, Metallurgy and Materials, vol. 20(3), 2013, pages 313-322 1674-4799 http://link.springer.com/article/10.1007%2Fs12613-013-0729-0 http://dspace.unimap.edu.my:80/dspace/handle/123456789/33185 en Springer Verlag |
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Compressive strength Geopolymers Kaolin Sodium hydroxide |
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Compressive strength Geopolymers Kaolin Sodium hydroxide Heah, Cheng Yong Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. Mohd Mustafa Al-Bakri, Abdullah Mohamed, Bnhussain, Prof. Dr. Luqman, Musa, Dr. Khairul Nizar, Ismail, Assoc. Prof. Dr. Che Mohd Ruzaidi, Ghazali, Prof. Madya Liew, Yun Ming Kaolin-based geopolymers with various NaOH concentrations |
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Link to publisher's homepage at http://link.springer.com/ |
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chengyongheah@gmail.com |
| author_facet |
chengyongheah@gmail.com Heah, Cheng Yong Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. Mohd Mustafa Al-Bakri, Abdullah Mohamed, Bnhussain, Prof. Dr. Luqman, Musa, Dr. Khairul Nizar, Ismail, Assoc. Prof. Dr. Che Mohd Ruzaidi, Ghazali, Prof. Madya Liew, Yun Ming |
| format |
Article |
| author |
Heah, Cheng Yong Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. Mohd Mustafa Al-Bakri, Abdullah Mohamed, Bnhussain, Prof. Dr. Luqman, Musa, Dr. Khairul Nizar, Ismail, Assoc. Prof. Dr. Che Mohd Ruzaidi, Ghazali, Prof. Madya Liew, Yun Ming |
| author_sort |
Heah, Cheng Yong |
| title |
Kaolin-based geopolymers with various NaOH concentrations |
| title_short |
Kaolin-based geopolymers with various NaOH concentrations |
| title_full |
Kaolin-based geopolymers with various NaOH concentrations |
| title_fullStr |
Kaolin-based geopolymers with various NaOH concentrations |
| title_full_unstemmed |
Kaolin-based geopolymers with various NaOH concentrations |
| title_sort |
kaolin-based geopolymers with various naoh concentrations |
| publisher |
Springer Verlag |
| publishDate |
2014 |
| url |
http://dspace.unimap.edu.my:80/dspace/handle/123456789/33185 |
| _version_ |
1643797092979703808 |
| score |
13.214268 |