Development of Geopolymer-Based Materials from Coal Bottom Ash and Rice Husk Ash with Sodium Silicate Solutions
作者： Hoc Thang Nguyen , Trung Kien Pham , Michael A. B. Promentilla
DOI: 10.1007/978-981-10-6713-6_40
关键词: Materials science 、 Raw material 、 Fly ash 、 Bottom ash 、 Industrial waste 、 Metallurgy 、 Geopolymer 、 Sodium silicate 、 Coal 、 Husk 、 Waste management
摘要: The coal bottom ash is a solid waste generated from coal-fired thermal power plants that contains high alumino-silicates resources. Rice husk was burned rice which has over 80% silica in its chemical composition. alumino silicates resources these materials have reactivity various conditions such as of alkaline reactions and reactions. Therefore, both (CBA) (RHA) are promising raw for synthesizing alkali activated through geopolymerization. This study focuses on utilization CBA RHA to produce geopolymer – based using sodium silicate solution an activator. one the potential solutions would not only manage but also avenue utilize green materials. production geopolymer-based results lower energy consumption, minimal CO2 emissions cost it valorizes industrial waste. were mixed with obtain geopolymeric pastes. pastes molded 5-cm cube molds according ASTM C109/C109 M 99, then cured at room temperature 28 days. 28-day specimens tested engineering properties compressive strength (MPa), volumetric weight (kg/m3), water absorption (kg/m3) conductivity (W/m.K). Microstructure best sample characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM).
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