چکیده مقاله
This study investigates the influence of mix design parameters on the compressive strength of one part ultra high performance slag based alkali activated concrete UHP AAC In contrast to cement based ultra high performance concrete UHPC with high cement consumption and associated CO2 emissions, UHP AAC utilizes industrial by products such as ground granulated blast furnace slag and silica fume to reduce environmental impacts While previous studies primarily focused on two part alkali activated systems, limited research has been dedicated to developing one part UHP AAC, particularly regarding the combined effects of mix ratios and recycled steel fibers In this research, slag and silica fume were used as precursors, sodium metasilicate pentahydrate as solid alkali activator, glass powder as filler, and silica sand as aggregate Some mixtures incorporated recycled steel fibers The investigated mix proportion parameters include the silica fume to binder ratio, metasilicate to binder ratio, sand to binder ratio, water to binder ratio, and recycled steel fiber content Additionally, quartz powder was compared with glass powder as an alternative filler in terms of its effect on compressive strength Specimens were wrapped in plastic sheets during the curing process to minimize water loss The results show that incorporating recycled steel fibers significantly enhanced compressive strength in the range of 0 5%, while decreasing water to binder and silica fume to binder ratios consistently improved performance
کلیدواژهها
نویسندگان
Amin Ghasemi
M Sc Student, Department of Civil Engineering, Isfahan University of Technology, Isfahan, Iran
کیاچهر بهفرنیا
Professor, Department of Civil Engineering, Isfahan University of Technology, Isfahan, Iran
شیوه ارجاع
Ghasemi, Amin and Behfarnia, Kiachehr,1404,Effect of Mix Design Parameters on the Compressive Strength of Ultra-High Performance Alkali-Activated Concrete,14th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات چهاردهمین کنگره بین المللی مهندسی عمران29 مهر 1404 · تهران