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Physicomechanical properties of lightweight geopolymer mortarwith integrated graphene nanosheets |
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| รหัสดีโอไอ | |
| Creator | 1. Amun Amri 2. Revika Wulandari 3. Selsa Idillah 4. Sunarno 5. Sulistyo Saputro 6. Harnedi Maizir 7. Johny Wahyuadi Soedarsono |
| Title | Physicomechanical properties of lightweight geopolymer mortarwith integrated graphene nanosheets |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2565 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 44 |
| Journal No. | 2 |
| Page no. | 381-387 |
| Keyword | physicomechanical properties, lightweight geopolymer, graphene nanosheets |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | Physicomechanical properties of lightweight geopolymer (LG) mortar with added graphene have been investigated.The motivation was to expand the geopolymer applications as building wall materials. LGs were prepared via pre-foamingmethod by mixing fly ash, fine aggregates, ordinary portland cement (OPC), alkali activator, graphene, and foam. Graphene wasprobed by Raman spectroscopy, while the physicomechanical properties of LGs were investigated by X-ray diffraction (XRD),Transmission Electron Microscopy (TEM), measurements of density and porosity, as well as tests of compressive strength andthermal durability. Raman spectroscopy revealed that the graphene used was graphene nanosheets (GNS) with the ID/IG and I2D/IGvalues of 0.15 and 0.4, respectively. The measured compressive strength of LG increased to around double on adding GNS up to3 wt.%. The average density of the produced LG was 931 kg/m3. The porosity of LG decreased around 10% with the increase ofGNS content up to 3 wt.%, but the porosity of LG slightly increased on increasing the Na2SiO3/NaOH ratio. XRD analysisrevealed that the changes in Na2SiO3/NaOH ratio did not change the crystal phase of LG. The addition of GNS improved themechanical properties and thermal durability of the LG. |
