TY - JOUR N2 - Geopolymer is synthesized by polycondensation of SiO4 and AlO4 aluminosilicate complexes, tetrahedral frames linked with shared sialate oxygen. This paper studies the effect of the solids-to-fluids (S/L) and Na2SiO3/NaOH proportions on the preparing of metakaolin inorganic membrane geopolymer. By consolidating a mixture of metakaolin with sodium hydroxide, sodium silicate and foaming agent, the geopolymer membrane was made in required shape about 1 cm and cured at 80°C for 24 hours. After the curing process, the properties of the samples were tested on days 7. Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) solution were utilized as an alkaline activator with a NaOH fixation fixed at 10 M. The geopolymer inorganic membrane tests were set up with various S/L proportions (0.8, 1.0, 1.2 and 1.4) and Na2SiO3/NaOH proportions (0.5, 1.0, 1.5, 2.0 and 2.5). Aluminium (Al) powder as a foaming agent was used to create bubbles in porous structure and provide details on the development of membrane geopolymers. This metakaolin membrane, based on the geopolymer, was synthesized by a suspension that depends on the fast cementing mechanism of high-temperature slurries. Porous geopolymeric circles provided a homogeneous composition and quantitative distribution of pores. The water absorption, density, impact toughness testing and microstructure analyses were studied. However, considering the promising results, an adjustment in the mix design of the metakaolin inorganic membrane geopolymer mixtures could increase their mechanical properties without negatively affecting the mechanical properties and porosity, making these sustainable materials a suitable alternative to traditional porous cement concrete. L1 - http://journals.pan.pl/Content/123311/PDF/AMM-2022-2-40-Wan%20Mastura.pdf L2 - http://journals.pan.pl/Content/123311 PY - 2022 IS - No 2 EP - 702 DO - 10.24425/amm.2022.137808 KW - Geopolymer KW - metakaolin membrane KW - porous geopolymer KW - solid-to-liquid (S/L) ratio and Na2SiO3/NaOH ratio A1 - Ibrahim, Masdiyana A1 - Wan Ibrahim, Wan Mastura A1 - Al Bakri Abdullah, Mohd Mustafa A1 - Sauffi, Ahmad Syauqi A1 - Vizureanu, Petrica PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 67 DA - 2022.06.10 T1 - Effect of Solid-To-Liquids and Na2SiO3-To-NaOH Ratio on Metakaolin Membrane Geopolymers SP - 695 UR - http://journals.pan.pl/dlibra/publication/edition/123311 T2 - Archives of Metallurgy and Materials ER -