Effect of partial replacement of crushed aggregate with natural sand on mechanical and rheological properties of self-compacting concrete
Publish place: Structural Engineering & Geotechnic، Vol: 11، Issue: 1
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
View: 232
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_QSEJ-11-1_003
تاریخ نمایه سازی: 19 مرداد 1400
Abstract:
This paper presents the results of an experimental study on the effect of crushed sand on the properties of fresh and hardened self-compacting concrete. Mixtures of self-compacting concrete have been produced with the replacement of ۰%, ۲۵%, ۵۰%, ۷۵% and ۱۰۰ % of natural sand with crushed sand (CSS). Same coarse aggregate with crushing percentage of ۷۵ has been used in all mixtures. Concrete grade of ۴۵۰ Kg/m۳ and water to cement ratio of ۰.۴ have been considered in the mixture designs. Workability properties of self-compacting concrete were investigated by empirical tests viz. slump flow test, T۵۰۰, V-funnel and L-box height. Rheological properties of concrete mixtures do not change remarkably by replacing ۲۵% and ۵۰ % of natural sand with CSS but if the mixture includes more than ۵۰ % of CSS, the rheological properties of self-compacting concrete will be influenced negatively and may endanger the applicability of the concrete. Strength tests included cube compressive strength test, flexural strength and Splitting Tensile Strength test. The hardened self-compacting concrete exhibits excellent short term strength with ۲۵% CSS content
Keywords:
Authors
hamidreza amini
Department of Civil Engineering, Faculty of Engineering, Zanjan University
jamal ahmadi
engineering faculty of zanjan university
Behzad Saeedi Razavi
Department of Construction and Mineral Engineering, Technology and Engineering Research Center, Standard Research Institute
mehdi babaei
Department of Civil Engineering, Faculty of Engineering, Zanjan University
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 :