Iranian Eocene Green Tuffs as Natural Pozzolan for Use in Cement Industries
Publish Year: 1399
Type: Journal paper
Language: English
View: 458
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- I'm the author of the paper
Export:
Document National Code:
JR_JCEMA-4-3_001
Index date: 9 January 2021
Iranian Eocene Green Tuffs as Natural Pozzolan for Use in Cement Industries abstract
Eocene Green Tuffs are widespread in Central Alborz in the north of Iran. In parts, they are used as natural Pozzolan. In this study, the Pozzolanic activities of tuff samples from Qazvin to Semnan in Alborz Mountain were examined. The Pozzolanic activity patterns vary in different beds and even change laterally. Chemical examination of the samples indicated that they all belong to acidic rock group and were consistent with related standards. Pozolanic activity calculated for samples using hydraulic factor, thermal analysis and ion concentrations. Data obtained based on thermal analysis, presented a range of Pozzolanic activities for tuffs with similar chemistry and appearance. It was found in this research that mineralogy and texture controlled Pozzolan activity. Tuffs with high activity had glass in their matrix, but weathering and recrystallization reduced the activity. Petrographical examinations play an essential role in evaluating the availability of tuffs as natural Pozzolan in Central Alborz.
Iranian Eocene Green Tuffs as Natural Pozzolan for Use in Cement Industries Keywords:
Iranian Eocene Green Tuffs as Natural Pozzolan for Use in Cement Industries authors
Jafar Sobhani
Department of Concrete Technology, Road, Housing & Urban Development Research Center (BHRC), ۱۳۱۴۵-۱۶۹۶, Iran.
Ali Reza Pourkhorshidi
Road, Housing and Urban Development Research Center
Fariborz Masoudi
Shahid Beheshti university, Tehran, Iran.
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :