Structural behavior of reinforced concrete one-way slabs cast with self-compacting concrete containing recycled concrete as coarse aggregate
المؤلفون المشاركون
المصدر
Basrah Journal for Engineering Sciences
العدد
المجلد 20، العدد 2 (31 ديسمبر/كانون الأول 2020)، ص ص. 8-17، 10ص.
الناشر
تاريخ النشر
2020-12-31
دولة النشر
العراق
عدد الصفحات
10
التخصصات الرئيسية
الموضوعات
الملخص EN
This work deals with the effect of using Recycled Concrete Aggregate (RCA) as a partial replacement of coarse aggregate in Self-Compacting Concrete (SCC), on the structural behavior (flexure and shear) of reinforced concrete one-way slTo the authors' knowledge, this study is one of limited studies concerning the behavior of recycled aggregate concrete one-way slsubjected to line loading with significant replacement of conventional aggregates by recycled concrete aggregate (up to 75 %).
Three replacement ratios were considered 25 %, 50 % and, 75 %.
The mixes (with natural stone coarse aggregate, NCA) have an averaged compressive strength of (Fcu = 42 MPa) at the age of 28 days with a tolerance of (± 1.
5 MPa).
While, the mixes (with RCA) have an averaged compressive strength of (38.
5, 36.
5 and 34 MPa) for the three replacement ratios respectively, at the age of 28 days with a tolerance of (± 2 MPa).
All the slwere cast with length of (1600 mm), width of (600 mm), while the thickness was variable.
For this purpose, sixteen reinforced concrete one-way slwere cast and divided into five groups (G1 to G5).
Different parameters that affect the behavior of one-way slwere studied and include type of failure, replacement ratios of NCA by RCA, amount of main reinforcement, thickness and locations of line loadings along the span.
Hardened concrete specimens results show that the compressive strength Fcu, tensile strength Ft, modulus of rupture Fr and modulus of elasticity E were decreased as the RCA replacement increased.
The experimental results of slshow that the ultimate capacity of sldecreased as the RCA replacement increased, the deflection and strain increase as the RCA replacement increases and the crack width increases as the RCA replacement increases.
From the results of ultimate capacity, cracking load and moment, deflections, crack width and pattern and concrete surface strains, it can be concluded that the recycled concrete aggregate can be used as a partial replacement of natural coarse aggregate to produce self-compacting concrete mixes.
Also, the behavior of one way slcast with SCC containing RCA is acceptable.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Tai, Malik K. Eb.& Khudair, Jamal A. Samad. 2020. Structural behavior of reinforced concrete one-way slabs cast with self-compacting concrete containing recycled concrete as coarse aggregate. Basrah Journal for Engineering Sciences،Vol. 20, no. 2, pp.8-17.
https://search.emarefa.net/detail/BIM-972936
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Tai, Malik K. Eb.& Khudair, Jamal A. Samad. Structural behavior of reinforced concrete one-way slabs cast with self-compacting concrete containing recycled concrete as coarse aggregate. Basrah Journal for Engineering Sciences Vol. 20, no. 2 (2020), pp.8-17.
https://search.emarefa.net/detail/BIM-972936
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Tai, Malik K. Eb.& Khudair, Jamal A. Samad. Structural behavior of reinforced concrete one-way slabs cast with self-compacting concrete containing recycled concrete as coarse aggregate. Basrah Journal for Engineering Sciences. 2020. Vol. 20, no. 2, pp.8-17.
https://search.emarefa.net/detail/BIM-972936
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 16-17
رقم السجل
BIM-972936
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر