Impact Strength of Quaternary Blended Self-Compacting Concrete (QBSCC)

Sridevi M.*, P. Srinivasa Rao**, T. Seshadri Sekhar***
*-**Department of Civil Engineering, JNTUH College of Engineering, Kukatpally, Hyderabad, Telangana, India.
***National Institute of Construction Management and Research, Hyderabad, Telangana, India.
Periodicity:September - November'2019
DOI : https://doi.org/10.26634/jste.8.3.16509

Abstract

Self-Compacting Concrete (SCC) has been used widely nowadays and it is more prone to plastic and drying shrinkage cracks. Under impact loading, the micro-cracks present in the concrete may propagate, widen and lead to failure of concrete structures. Researches on Fibre Reinforced Concrete (FRC) has been proven to be effective in improving the impact strength of concrete. So, in this study, an attempt has been made to study the behaviour of Quaternary Blended Self-Compacting Concrete (QBSCC) under impact, with crimped steel fibres. The binder comprises of 40% cement, 10% microsilica, 25% flyash, and 25% GGBFS. Two w/b ratios of 0.3 and 0.4 with super-plasticiser of 1.8% and 1.6% by weight of binder, respectively were used. Crimped steel fibre content of 0, 0.5, 1, 1.5% by weight of binder was used. The impact strength in terms of number of blows were determined using pendulum type impact testing machine for QBSCC beams at 28, 90, and 180 days. QBSCC with crimped steel fibres exhibited better impact resistance than reference concrete without steel. Also, impact strength of QBSCC increased as percentage of steel fibres increased. Maximum impact strength of QBSCC was obtained with 1.5% of steel fibres.

Keywords

Quaternary, self-compacting, concrete, impact, steel fibres.

How to Cite this Article?

Sridevi, M., Rao, P. S., and Sekhar, T. S. (2019). Impact Strength of Quaternary Blended Self-Compacting Concrete (QBSCC). i-manager's Journal on Structural Engineering, 8(3), 22-28. https://doi.org/10.26634/jste.8.3.16509

References

Purchase Instant Access

Single Article

North Americas,UK,
Middle East,Europe
India Rest of world
USD EUR INR USD-ROW
Pdf 35 35 200 20
Online 35 35 200 15
Pdf & Online 35 35 400 25

If you have access to this article please login to view the article or kindly login to purchase the article
Options for accessing this content:
  • If you would like institutional access to this content, please recommend the title to your librarian.
    Library Recommendation Form
  • If you already have i-manager's user account: Login above and proceed to purchase the article.
  • New Users: Please register, then proceed to purchase the article.