01.Jan.2019
A new geopolymeric material has been fabricated from local Saudi Arabian resources using inorganic mineral polymerization technique. In this technique, the mineral polymer is synthesized from the following components: naturally occurring kaolin clay mineral, silica sand, sodium hydroxide, and water. Homogeneous samples of known amounts of clay minerals and silica sand were mixed with different ratios of clay and sand and sodium hydroxide solutions ranging from 13 to 19.7 mol/l. To accelerate the chemical polymerization reaction, the molded reactants were cured at 80 °C in an oven for 24 h to form stable and hard geopolymeric material. The synthesis parameters of mass of clay mineral, sand, NaOH and water were varied according to a statistical analysis design of experiment. The optimum amount of water is limited by the plastic limit of the clay, which is determined to be around 25%. Based on the results of the experimental design a geoploymer with a compressive strength of 27.1 MPa was achieved by sand to kaolin ratio of 1.5, water to kaolin ratio of 0.25 and NaOH to kaolin ratio of 0.17 under dry conditions and 18.1 MPa under wet conditions.https://www.researchgate.net/publication/325741068_Fabrication_of_Geopolymers_from_Untreated_Kaolin_Clay_for_Construction_Purposes
A new geopolymeric material has been fabricated from local Saudi Arabian resources using inorganic mineral polymerization technique. In this technique, the mineral polymer is synthesized from the following components: naturally occurring kaolin clay mineral, silica sand, sodium hydroxide, and water. Homogeneous samples of known amounts of clay minerals and silica sand were mixed with different ratios of clay and sand and sodium hydroxide solutions ranging from 13 to 19.7 mol/l. To accelerate the chemical polymerization reaction, the molded reactants were cured at 80 °C in an oven for 24 h to form stable and hard geopolymeric material. The synthesis parameters of mass of clay mineral, sand, NaOH and water were varied according to a statistical analysis design of experiment. The optimum amount of water is limited by the plastic limit of the clay, which is determined to be around 25%. Based on the results of the experimental design a geoploymer with a compressive strength of 27.1 MPa was achieved by sand to kaolin ratio of 1.5, water to kaolin ratio of 0.25 and NaOH to kaolin ratio of 0.17 under dry conditions and 18.1 MPa under wet conditions.
https://www.researchgate.net/publication/325741068_Fabrication_of_Geopolymers_from_Untreated_Kaolin_Clay_for_Construction_Purposes
17.Apr.2024
16.Jan.2024
20.Sep.2023
أنا طالبة في الهندسة الصناعية, اختياري لهذا التخصص كان بناءً على أهميته الكبيرة كمهنة في الحاضر والمستقبل ... رغد بركات
الهندسة الصناعية تساعدك على اتخاذ قرارات أفضل، وتعطي أشكالا أخرى من مبادئ الهندسة بشكل عملي وعلمي في آن. ... محمود صلاح
قسم الهندسة الكيميائية قسم جميل جدا تعلمت فيه الكثير ومما تعلمته فيه جدية العمل وروح الفريق الواحد .. ... رغد الشويكي