Advances in concrete construction

  • 제2권4호
  • /
  • Pages.301-308
  • /
  • 2014
  • /
  • 2287-5301(pISSN)
  • /
  • 2287-531X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Mechanical strengths of self compacting concrete containing sawdust-ash and naphthalene sulfonate

  • Elinwa, Augustine U. (Civil Engineering Programmme, Abubakar Tafawa Balewa University) ;
  • Mamuda, Mamuda (Civil Engineering Programmme, Abubakar Tafawa Balewa University) ;
  • Ahmed, M. (Civil Engineering Programmme, Abubakar Tafawa Balewa University)
  • 투고 : 2014.08.15
  • 심사 : 2014.12.23
  • 발행 : 2014.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

The present research work is on the effect of sawdust ash (SDA) on the mechanical strengths of self compacting concrete (SCC) using naphthalene sulfonate (NS) as a plasticizer. Experiments on compressive, flexural and splitting tensile strengths are conducted and the data analyzed using the Minitab 15 software. The results showed that SDA can defer the reaction of cement hydration and prolong the setting times of cement paste. This was very much pronounced on the flexural and splitting tensile strengths at 90 days of curing which are 36 % and 33 % higher than the control strengths, respectively. The study has proposed strength relations of mortar compressive strength with the flexural and splitting tensile strengths and these are, 5 and 7 times respectively. The flexural strength is 1.5 times that of the splitting tensile. Finally, linear models were developed on these relationships.

키워드

참고문헌

  1. EFNARC (2002), "Specification and guidelines for self-compacting concrete, London. EFNARC Publication, 1 - 32.
  2. Elinwa, A.U., Ejeh, S.P. and Mamuda, A.M. (2008), "Assessing of the fresh concrete properties of selfcompacting concrete containing sawdust ash", Construct. Build. Mater., 22(6), 1178-1182. https://doi.org/10.1016/j.conbuildmat.2007.02.004
  3. Elinwa, A.U. and Mahmood, Y.A. (2001), "Ash from timber waste as cement replacement material", Cement Concrete Compos., 24, 219- 222.
  4. Elinwa, A.U. and Mamuda, A.M. (2014), "Sawdust ash as powder material for self-compacting concrete containing naphthalene sulfonate", Advances in Civil Engineering, vol. 2014, Article ID 129276, P8, http://dx.doi.org/10.1155/2014/129276.
  5. Ahmad, F, Nasir, S, Muhd, F.N. and Ali, E. (2013), "Assessment of fresh and hardened properties of selfcompacting concrete made with fly ash as mineral admixture", Int. J. Current Eng. Technol., 3(1), 158 - 163.
  6. Johnsirani, K.S., Jagannathan, A. and Kumar, D.R. (2013), "Experimental investigation on self compacting concrete using quarry dust", Int. J. Sci. Res. Public., 3(6), 1 - 5.
  7. Kumar, D.S. and Rajeev, C. (2012), "Development of self compacting concrete by use of Portland pozzolana cement, hydrated lime and silica fume", ISCA J. Eng. Sci., 1(1), 35 -39.
  8. Shazim, A.M., Muhammad, A.S. and Hassan, A. (2008), "Production of low cost self-compacting concrete using rice husk ash". 1st International Conference on Construction in Developing Countries (ICCIDC -1); Advancing and Integrating Construction Education Research and Practice, August, 4 - 5, Karachi, Pakistan.
  9. Pedro Silva and Jorge de Binto (2013), "Electrical resistivity and capillary of self compacting concrete with incorporation of fly ash and limestone filler", Adv. Concrete Constr., 1(1), 65-84. https://doi.org/10.12989/acc.2013.1.1.065
  10. Kamal, M.M., Safan, M.A. and Al-Gazzer, M.A. (2013), "Steel-concrete bond potentials in self compacting concrete mixes incorporating dolomite powder", Adv. Concrete Constr., 1 (4), 273-288. https://doi.org/10.12989/acc2013.1.4.273
  11. BS 12 (1996), "Specification for Portland cement", British Institution.
  12. BS 882, Part 1201 (1973), "Aggregates from natural sources for concrete (including granolithic), British Standard Code of Practice.
  13. Todorova, E., Chernev, G. and Markov, P. (2013), "Influence of metakaolinite and stone flour on the properties of self-compacting concrete", J. Chem. Technol. Metall., 48(2) 196-201.
  14. Termkhajornkit, P. and Nawa, T. (2004), "The fluidity of fly ash cement paste containing naphthalene sulfonate superplasticizer", Cement Concrete Res., 34, 1017-1024. https://doi.org/10.1016/j.cemconres.2003.11.017
  15. BS 1881 (1983), "Testing concrete: Method for the determination of compressive strength of concrete cubes", British Standard Code of Practice.
  16. Field A (2002), "Discovering statistics using SPSS for windows", Sage Publications, London, 492pp.
  17. Razak, H.A. and Wong, H.S. (2004),"Strength estimation model for high-strength concrete incorporating metakaolin and silica fume, Cement Concrete Res., 35, 688 -695.