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Strength, thermal conductivity and sound absorption of cellular lightweight high calcium fly ash geopolymer concrete |
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| รหัสดีโอไอ | |
| Creator | 1. Athika Wongkvanklom 2. Patcharapol Posi 3. Pornnapa Kasemsiri 4. Vanchai SataTrinh Cao 5. Prinya Chindaprasirt |
| Title | Strength, thermal conductivity and sound absorption of cellular lightweight high calcium fly ash geopolymer concrete |
| Publisher | Faculty of Engineering, Khon Kaen University |
| Publication Year | 2564 |
| Journal Title | Engineering and Applied Science Research |
| Journal Vol. | 48 |
| Journal No. | 4 |
| Page no. | 487-496 |
| Keyword | Cellular lightweight geopolymer concrete, Mechanical property, Thermal property, Sound absorption |
| URL Website | https://www.tci-thaijo.org/index.php/easr/index |
| Website title | Engineering and Applied Science Research |
| ISSN | 2539-6161 |
| Abstract | In this research, the effects of foam content on mechanical property, thermal property and sound absorption of cellular lightweight geopolymer concrete (CLGC) were studied. The geopolymermixtures were made with 15 M NaOH solution, sodium silicate/NaOH ratio (NS/NaOH) of 1.00, sand/ash ratio of 1.25, liquid/fly ash ratio of 0.4. The foam contents were varied from 2-12 %wt. The 28-day compressive strength of CLGCs of 2.7-57.8 MPa, unit weight of 844-2100 kg/m3, water absorption of 1.36-31.25%, porosity of 2.82-49.42%, thermal conductivity of 0.13-1.62 W/mK, and sound absorption coefficients of 0.05-0.5 were obtained. The CLGCs with 4% foam content, 28-day compressive strength of 38.9 MPa andunit weight of 1815 kg/m3is suitable for structural lightweight concrete complying to the requirements of ASTM C330/C330M-17a. Whereas the mix with 8 and 10 % foam contents with compressive strengths of 7.60 and 6.1 MPa, and unit weights of 1210 and 1060kg/m3are suitable for use as masonry lightweight concrete block in accordance with ASTM C331/C331M-17. |
