TAFTAN POZZOLAN-BASED GEOPOLYMER CEMENT
سال انتشار: 1387
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 645
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شناسه ملی سند علمی:
JR_IJIEPR-19-3_001
تاریخ نمایه سازی: 7 شهریور 1393
چکیده مقاله:
In recent years, many research works have been done to investigate the possibility of utilizing a broad range of materials as raw materials in the production ofgeopolymer cements. The use of artificial pozzolans or aluminosilicate-type industrial waste materials such as granulated blast-furnace slag and fly ash has been reported in many research works. Natural pozzolans are also aluminosilicate-type materials which can be activated with solutions of NaOH and Na2SiO3. Using a pumice-type natural pozzolan from Taftan Mountain located at the south east of Iran and different alkaliactivators based on combinations of Na2SiO3 and NaOH, a number of natural-pozzolanbased geopolymer cement systems were designed and prepared. Final setting time, workability, and 28-day compressive strength of the systems were studied. The results obtained reveal that Taftan pozzolan can be activated using a proportioned mixture ofNa2SiO3 and NaOH resulting in the formation of a geopolymer cement system exhibiting suitable workability and relatively high 28-day compressive strengths up to 63 MPa.
کلیدواژه ها:
نویسندگان
Ali Allahverdi
is with the School of Chemical Engineering, Iran University of Science &, Technology,
Kamyar Mehrpour
is a M.Sc. Student at the same School.
Ebrahim Najafi Kani
is a Ph.D. Student at the same School.