Dadkhah, Masoud, Rahgozar, Reza, Bandani, Ali, Rahgozar, Peyman. (1403). Mechanical Properties of Self-Compacting Lightweight Concrete Containing Pumice and Metakaolin. هنرهای کاربردی, 12(3), 97-116. doi: 10.22075/jrce.2023.29150.1762
Masoud Dadkhah; Reza Rahgozar; Ali Bandani; Peyman Rahgozar. "Mechanical Properties of Self-Compacting Lightweight Concrete Containing Pumice and Metakaolin". هنرهای کاربردی, 12, 3, 1403, 97-116. doi: 10.22075/jrce.2023.29150.1762
Dadkhah, Masoud, Rahgozar, Reza, Bandani, Ali, Rahgozar, Peyman. (1403). 'Mechanical Properties of Self-Compacting Lightweight Concrete Containing Pumice and Metakaolin', هنرهای کاربردی, 12(3), pp. 97-116. doi: 10.22075/jrce.2023.29150.1762
Dadkhah, Masoud, Rahgozar, Reza, Bandani, Ali, Rahgozar, Peyman. Mechanical Properties of Self-Compacting Lightweight Concrete Containing Pumice and Metakaolin. هنرهای کاربردی, 1403; 12(3): 97-116. doi: 10.22075/jrce.2023.29150.1762

Mechanical Properties of Self-Compacting Lightweight Concrete Containing Pumice and Metakaolin

Journal of Rehabilitation in Civil Engineering
مقاله 7، دوره 12، شماره 3 - شماره پیاپی 35، پاییز 2024، صفحه 97-116    اصل مقاله (1.39 M)
نوع مقاله: Regular Paper
شناسه دیجیتال (DOI): 10.22075/jrce.2023.29150.1762
نویسندگان
Masoud Dadkhah* 1؛ Reza Rahgozar2؛ Ali Bandani3؛ Peyman Rahgozar4
1Ph.D. Candidate, Department of Civil Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
2Professor, Department of Civil Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
3M.Sc. Graduated, Department of Civil Engineering, Islamic Azad University, Branch, Zahedan, Iran
4Ph.D. Candidate, Rinker, Sr. School of Construction Management, University of Florida, Gainesville, USA
چکیده
Self-compacting lightweight concrete (SCLC) is a novel type of concrete that combines the benefits of the lightweight and self-compacting concrete (SCC) types. In this research, the optimal amount of metakaolin used in lightweight concrete containing pumice has been obtained based on the best concrete performance in terms of the greatest simultaneous increase in compressive, tensile and flexural strengths. After choosing the SCLC mixing scheme, L-Box, V-Funnel, Slump flow, and T50 tests were performed to investigate the flowability, passing ability, viscosity, and concrete resistance against segregation. Then, the mechanical properties of SCLC have tested by replacing metakaolin with 0, 5, 10, 15, and 20% by weight of cement. The research results have demonstrated that metakaolin enhances ‎the mechanical strength of SCLC. In addition, by adding metakaolin in the amount of 15% cement weight, the process of improving concrete strength continues. The 28-day SCLC specimens containing 15% metakaolin had compressive, splitting tensile and flexural strength of 26%, 14%, and 11% higher than those of SCLC without metakaolin, respectively. Furthermore, formulas that can ‎predict compressive strength, tensile strength, and ‎flexural strength of 28-day SCLC ‎containing ‎metakaolin have been presented.

تازه های تحقیق
  • The compressive, tensile and flexural strengths of self-compacting lightweight concrete (SCLC) containing pumice and metakaolin have been investigated.
  • The optimal content of metakaolin added to SCLC produced with pumice has been obtained at 15%.
  • Relationships between compressive, tensile and flexural strengths of SCLC containing pumice and metakaolin have been presented.
  • Formulas for predicting compressive, tensile and flexural strengths of SCLC containing pumice and metakaolin based on the amount of metakaolin have been offered.
کلیدواژه‌ها
Metakaolin؛ Mechanical properties؛ Taftan pumice؛ Self-compacting؛ Lightweight concrete
مراجع
آمار
تعداد مشاهده مقاله: 968
تعداد دریافت فایل اصل مقاله: 445
دانشگاه سمنان
پیوندهای مفید
آمار
تعداد نشریات22
تعداد شماره‌ها723
تعداد مقالات10,394
تعداد مشاهده مقاله72,853,124
تعداد دریافت فایل اصل مقاله64,551,630