Flexural Behavior of RC Two Way Slabs Made With Crushed Melted Bricks as Coarse Aggregate

  • Ihab S. Saleh
  • Saddam Kh Faleh
  • Aqeel H. Chkheiwer
Conference paper
Part of the Sustainable Civil Infrastructures book series (SUCI)


This paper provides the results of an experimental investigation into the use of crushed melted clay brick waste as coarse aggregate in producing concrete. Fast development in the structural concrete constructions has increased; therefore the high consumption of gravel as a coarse aggregate in concrete works has increased in alarming rate. Furthermore, the growth of the brick industry has also produced lots of product mainly the waste materials affected on the environment, so that the production of concrete with crushed melted brick as a suitable aggregate will face the countries in the coming few years and affect its sustainability and economy. In order to fulfil the objective of this investigation, an array of tests were conducted to determine concrete performance, including the compressive strength tests, the flexural tests and the tests to determine the modulus of elasticity. The data were collected and analyzed to satisfy the study on melted brick waste as an alternative in coarse aggregate as a partial or full replacement in concrete production. To study the effect of using the melted brick on structural behavior of concrete, five reinforced concrete slabs were tested, the key variable was, the replacement ratio of crushed melted brick, ranging from 25 to 100% of the total coarse aggregate, the mix proportions and W/C ratio were constant. Behavior of slabs under loading was observed, cracking and ultimate strength and deflections were recorded. The results reveal that the mixes with melted crushed brick aggregate show decrease in concrete compressive strength about 3–13%, flexural strength about 11–33% and modulus of elasticity about 10–15% than gravel concrete, at age of 28 days depending on the ratio of crushed melted brick replacement. Slab with replacement ratio 25% exhibit ultimate load 95% the ultimate load of reference slab made with gravel. The results also indicate that the ultimate load of full melted brick waste concrete has achieved 80% of ultimate load of reference slab.


  1. ASTM A615/A615 M-04b.: Standard specification for deformed and plain carbon steel bars for concrete reinforcement. pp. 1–6 (2004)Google Scholar
  2. ASTM C469.: Standard test method for static modulus of elasticity and Poisson’s ratio of concrete in compression, vol. 4.2, pp. 1–5 (2002)Google Scholar
  3. ASTM C78.: Standard test method for flexural strength of concrete (using simple beam with third-point loading). vol. 4.2, pp. 1–3 (2002)Google Scholar
  4. B.S. 1881: Part 125.: Methods for mixing and sampling fresh concrete in the laboratory, pp. 1– 9 (1986)Google Scholar
  5. B.S. 1881: Part 114.: Methods for determinations of density of hardened concrete, pp. 1–10 (1983)Google Scholar
  6. B.S. 1881: Part 116.: Methods for determination of compressive strength of concrete cubes, pp. 1–8 (1983)Google Scholar
  7. Iraqi Standards No.45/1984.: Aggregate from natural sources for concrete and construction. Ministry of Housing and Construction, Baghdad (2004)Google Scholar
  8. Iraqi Standards No.5/1984.: Ordinary Portland cement. Ministry of Housing and Construction, Baghdad (2004)Google Scholar
  9. Kallak, F.S.: Used of crushed bricks as coarse aggregate in concrete. Tikrit J. Eng. Sci. 16, 64–69 (2009)Google Scholar
  10. Khudair, J. A.S.: Properties and structural behaviour of concrete made with abu-ghar crushed lime stone as coarse aggregate. M.Sc. Thesis, College of Engineering, Department of Civil Engineering, University of Basrah, Iraq (1987)Google Scholar
  11. Mehta, P.K., Paulo, J.M.: Concrete microstructure, properties, and materials, 3rd edn. McGraw Hill, New York (2006)Google Scholar
  12. Mindess, S., Young, J.F.: Concrete. Prentice Hall, New Jersey (1981)Google Scholar
  13. PCA, Chap09.: Design and Proportioning Normal Concrete Mixtures. Portland Cement Association. Available at: (2002)
  14. Reddy, V., Kumar, S.: Behavior of recycled aggregate concrete two-way slabs in flexure and punching shear–an experimental investigation. Ph.D. Thesis, Faculty of Civil Engineering, Jawaharlal Nehru Technological University, India (2012)Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Ihab S. Saleh
    • 1
  • Saddam Kh Faleh
    • 1
  • Aqeel H. Chkheiwer
    • 1
  1. 1.Civil Engineering Department, Engineering CollegeUniversity of BasrahBasraIraq

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