Effect of rebar as a restraint against plastic shrinkage and settlement of self-consoliadting concrete
Abstract:
Plastic shrinkage and settlement occurs when concrete is in the fresh state. In reinforced concrete structures, the presence of rebar is effective on the shrinkage and settlement. In this study, four types of self-consolidating concrete(SCC) that are evaluated including: simple self-consolidating concrete (S), SCC containing silica fume (SS), SCC containing silica fume and styrene butadiene rubber latex (SSL) SCC containing silica fume and styrene butadiene rubber latex and fiber (SSLF). Then effect of changing in rebar placing on plastic shrinkage and settlement of SCC has been evaluated. The results show that reducing the height of the rebar placing in concrete (reducing in concrete cover), cause to change cracking due from plastic shrinkage to plastic settlement. Therefore cracking pattern has changed from Angle to the vertical. SCC containing fibers and latex shows the lowest plastic shrinkage and settlement and cracking area. Also cracking has not been observed in SCC containing fibers (SSLF).
Keywords:
Language:
Persian
Published:
Concrete Research Quarterly Journal, Volume:5 Issue: 1, 2013
Pages:
45 to 54
magiran.com/p1481751
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!