SONOCHEMICAL SYNTHESS OF NANO NATURAL POZZOLAN ANDNANOGGBRS
سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 407
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شناسه ملی سند علمی:
UFGNSM03_025
تاریخ نمایه سازی: 10 تیر 1396
چکیده مقاله:
Natural pozzolan and ground granulated blast furnace slag (GGBFS) are appropriate supplementary cementitious materials in cement and concrete industry. A simple sonochemical method was developed to synthesize nanostructures of natural pozzolan and slag. Chemical composition, crystallinity, morphology and reactivity of the natural pozzolan and slag samples were compared before and after the sonochemical process, by using Powder X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Thermal Gravimetry and Differential Thermal Analysis (TG/DTA). Under optimized conditions, the nano natural pozzolan and nano GGBFS showed superior reactivity as compared with their bulk forms.
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نویسندگان
AZADEHA SKARNEJAD
Department of Concrete, Building and Housing Research Center (BHRC), Tehran, Iran, P.O. Box ۱۳۱۴.۵-۱۶۹۶
ALI REZA POURKHORSHIDI
Department of Concrete, Building and Housing Research Center (BHRC), Tehran, Iran
TAYTEBEH PARHIZKAR
Department of Concrete, Building and Housing Research Center (BHRC), Tehran, Iran,