چکیده مقاله
The cement industry is a major contributor to global CO2 emissions, prompting the development of sustainable alternatives such as geopolymer binders This study investigates the compressive strength behavior of geopolymer mortar synthesized using Taftan pozzolan and activated with a combination of sodium silicate and sodium hydroxide The primary focus is on evaluating the influence of rest time of the alkaline activating solution―1 hour versus 24 hours prior to mixing on the compressive strength of the resulting mortar Sixteen mix designs were generated using the Taguchi method to systematically vary three parameters: water to solids ratio, silica to sodium oxide molar ratio, and cement replacement percentage All specimens were cured for 28 days under ambient conditions before testing The results show that extending the rest time of the activating solution generally enhances compressive strength, though the degree of improvement varies depending on the mix composition These findings highlight the importance of considering rest time in conjunction with mix design parameters when optimizing the mechanical performance of geopolymer mortars
کلیدواژهها
نویسندگان
Ramtin Mahroom Shahraki
Civil Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran
Hamed Ghohani Arab
Civil Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran
Mahmoud Miri
Civil Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran
Arash Naderi
Civil Engineering Department, University of Sistan and Baluchestan, Zahedan, Iran
شیوه ارجاع
Mahroom Shahraki, Ramtin and Ghohani Arab, Hamed and Miri, Mahmoud and Naderi, Arash,1404,Effect of Alkaline Activator Rest Time on the Compressive Strength of Geopolymer Mortar: A Taguchi-Based Study,14th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات چهاردهمین کنگره بین المللی مهندسی عمران29 مهر 1404 · تهران