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Journal of Failure Analysis and Prevention

, Volume 14, Issue 3, pp 384–394 | Cite as

Strength Evaluation of Concrete Made with Dug-up Gravel from Southwestern Nigeria

  • Akinropo Musiliu Olajumoke
  • Fola Lasisi
Technical Article---Peer-Reviewed

Abstract

Large expanses of natural deposits of gravel and sand are known to be available in many parts of the Southwestern Nigeria, which are being used for concrete production but with no standards. This study investigates the effects of using raw and washed dug-up gravel on the strength properties of concrete with a view to provide some standards for their usage. Field survey of quarry sites around Ile-Ife identified two commonly used dug-up gravel (Tiwantiwa), gravel A and (Majeroku), gravel B, which were selected for investigation. Prescribed mix proportions (measurements by weight) of 1:2:4 (cement:fine aggregate:washed/raw gravel) and 1:6 (cement:raw gravel) were used to produce the concrete cubes and beams for compressive and flexural strength tests. The results showed that using gravel A in raw form without sand and in washed form with sand have almost the same compressive strength (CS), while washing gravel B before use and with sand improved the CS of concrete. At 28 days, the CSs of concretes made from raw with no sand (RNS) of gravels A and B were 17.07 and 12.47 N/mm2, while those of raw with sand (RWS) and washed with sand (WWS) were 14.73 and 16.80 N/mm2 for gravel A and 11.93 and 16.00 N/mm2 for gravel B, respectively. Characteristic strength of 15 N/mm2 is recommended for concrete made with RNS and WWS of gravel A, while 11 and 14 N/mm2 are recommended for those of gravel B, respectively.

Keywords

Dug-up gravel Compressive and characteristic strength Collapse of concrete structures Flexural strength Hydration Prescribed mix proportion Water absorption 

Notes

Acknowledgement

The authors acknowledge the assistance of Mr. Segun Omosore in taking the first author to the various dug-up quarry sites around Ile-Ife and environs during the field work and in supplying the gravel used in this study.

References

  1. 1.
    A.M. Neville, Properties of Concrete, 4th edn. (Pearson Prentice Hall, New Jersey, 2008)Google Scholar
  2. 2.
    Concrete Technology: Cement and concrete basics: http//www.cement.org/tech/faq_strength.asp. Accessed on 29 April, 2008
  3. 3.
    BS 8110—Structural Use of Concrete—Part 1: Code of Practice for Design and Construction. British Standard Institution, London, 1997Google Scholar
  4. 4.
    B. El-Ariss, Effect of reducing coarse aggregates on concrete strength. Constr. Build. Mater. Elsevier Ltd. 20(3), 149–157 (2005)CrossRefGoogle Scholar
  5. 5.
    N. Jackson, R.K. Dhir, Civil Engineering Materials, 5th edn. (Palmgrove, Houndmills, 1996)Google Scholar
  6. 6.
    M. Alexander, S. Mindness, Aggregate in Concrete (Taylor & Francis, London, 2005)Google Scholar
  7. 7.
    A.M. Neville, J.J. Brooks, Concrete Technology. Fifth Indian Reprint. (Pearson Education Ltd, Singapore, 2005)Google Scholar
  8. 8.
    K. Wu, B. Chen, W. Yao, Study of the influence of aggregate size distribution on mechanical properties of concrete by acoustic emission technique. Cem. Concr. Res. 31, 919–923 (2001)CrossRefGoogle Scholar
  9. 9.
    A.M. Olajumoke, A.B. Fajobi, I.A. Oke, M.O. Ogedengbe, Engineering failure analysis of a failed building in Osun State, Nigeria. J. Fail. Anal. Prev. 9, 8–15 (2009)CrossRefGoogle Scholar
  10. 10.
    A. Poole, I. Sims, in Advanced Concrete Technology, ed. by J.B. Newman, B.S. Choo. Geology, Aggregates and Classification (2003), pp. 3–36Google Scholar
  11. 11.
    BS 1881—Testing Concrete—Part 108: Method for Making Test Cubes from Fresh Concrete. (British Standard Institution, London, 1983)Google Scholar
  12. 12.
    BS 1881—Testing Concrete—Part 118: Method for Determination of Flexural Strength. (British Standard Institution, London, 1983)Google Scholar
  13. 13.
    M.S. Shetty, Concrete Technology: Theory and Practice, 6th edn. (S. Chand & Company, New Delhi, India, 2007)Google Scholar
  14. 14.
    American Society for Testing and Materials (ASTM) C642: Standard test method for specific gravity, water absorption and unit weight of hardened concrete, 1990, pp. 318–319Google Scholar
  15. 15.
    A.M. Olajumoke, A study of structural performance of gravel made with unwashed gravels, 2009. M.Phil thesis submitted to the Department of Civil Engineering, Obafemi Awolowo University, Ile-Ife, Osun StateGoogle Scholar
  16. 16.
    C.E. Reynolds, J.C. Steedman, Reinforced Concrete Designer’s Handbook, 10th edn. (Spoon Press, Taylor & Francis Group, London, 1988)Google Scholar
  17. 17.
    J.E. Bowles, Engineering Properties of Soils and Their Measurement, 2nd edn. (McGraw-Hill Book Company, New York, 1998)Google Scholar
  18. 18.
    BS 6399—Loading for buildings—Part 1: Code of practice for dead and imposed loads. (British Standard Institution, London, 1996)Google Scholar
  19. 19.
    F.K. Kong, R.H. Evans, Reinforced and Prestressed Concrete. ELBS, 3rd edn. (Chapman and Hall, Hong Kong, 1990)Google Scholar
  20. 20.
    W.H. Mosley, J.H. Bungey, Reinforced Concrete Design, 4th edn. (ELBS with Macmillan, Hong Kong, 1995)Google Scholar

Copyright information

© ASM International 2014

Authors and Affiliations

  1. 1.Department of Civil EngineeringObafemi Awolowo UniversityIle-IfeNigeria
  2. 2.Department of Agricultural EngineeringObafemi Awolowo UniversityIle-IfeNigeria

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