Flow and Strength Properties of Binary Blended Self-Compacting Concrete Containing Bio-Ash

K. A.  Olonade; W.  Schmidt; M.O. Adeoye; M.O. Adeoye

K. A. Olonade Department of Civil & Environmental Engineering, University of Lagos, Akoka, Nigeria
W. Schmidt Bundesanstalt für Materialforschung und- prüfung, Berlin, Germany
M.O. Adeoye Department of Civil Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria.
M.O. Adeoye Department of Civil Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria.

Keywords: Blocking ratio, pozzolan, segregation resistance, strength and workability

Abstract

Palm kernel shell ash (PKSA) is a known pozzolanic material used in normal concrete with positive results, but there is dearth of knowledge on its effect on self-compacting concrete. Thus, flow properties of self-compacting concrete (SCC) containing PKSA as partial replacement for cement was studied and presented in this paper. Palm kernel shells were burnt at temperature of 700 ℃ for an hour to obtain ash. The ash was used to replace ordinary Portland cement (OPC) at 0%, 5%, 10%, 15% and 20% replacement levels in a predesigned SCC mix. Flow properties of the blended SCC and normal SCC were measured. The flow parameters determined were Slump flow, L-Box, V-Funnel, Sieve Stability and Visual Stability Index using standard procedures. Compressive strength and density of the hardened concrete were determined. The results showed that increase in proportion of PKSA decreased the flow properties of SCC but were within the limit at up to 15% replacement, while the strength activity index was more than 75% at up to 10% PKSA content. The study concluded that it is possible to produce SCC with up to 10% PKSA content. This study further affords the authors the leverage to extend experience to the use of cassava peel ash in SCC.

References

Abdullah K.M., Hussein W., Zakaria F., Muhamad R., Abdul Hamid Z. (2006). POFA: A potential partial cement replacement material in aerated concrete, Proceedings of the 6th Asia-Pacific Structural Engineering and Construction Conference (APSEC 2006), 35 – 42.
Aijaz A.Z.and Khadirnaikar R. B. (2014). An overview of the properties of self-compacting concrete”, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), 35-43
ASTM C618. (2006). Standard Specification for Coal Fly Ash and Raw or calcined Natural pozzolan for use in concrete. ASTM Inc. US.
Brouwers, H.J.H. and Radix H.J. (2005). Self-Compacting Concrete: Theoretical and experimental study, Cement and Concrete Research, 35:2116–2136.
BS 882 (1992). Specification for aggregates from natural sources for concrete, British standards Institution, UK.
BS1881- 107 (1993). Method for determination of density of compacted fresh concrete, British standards Institution, UK.
Domone P.L. (2007). A review of the hardened mechanical properties of self-compacting concrete, Cement and Concrete Composite, 29: 1-12.
EFNARC (2002). Specification and guidelines for self-compacting concrete, EFNARC, Association House, 99 West Street, Farnham, Surrey GU9 7EN, UK.
Frías, M., E. Villar Cociña and E. Valencia-Morales (2007). Characterisation of sugarcane straw waste as pozzolanic material for construction: Calcining temperature and kinetic parameters, Journal of Waste Management, 27:533-538.
Igarashi S., Watanab A., Kawamura M., (2005). Evaluation of capillary pore size characteristics in high-strength concrete at early ages, Cement and Concrete Research, 35(3):513-519.
Jayasree, C., Manu S and Ravindra G. (2011). Cement-superplasticizer compatibility - Issues and challenges, Indian Concrete Journal, 85(7):48-60.
Koehler, E. P. and David W. F. (2003). Summary of concrete workability test methods, International Center for Aggregates Research, The University of Texas at Austin, Cockrell Hall 5.200, 1 – 93.
Koehler, E. P. and D. W. Fowler (2007). Inspection manual for self-consolidating concrete in precast members, Project 0-5134: Self-Consolidating Concrete for Precast Structural Applications, Center for Transportation Research, the University of Texas at Austin. 1- 35.
Musa, A. and Nura B. (2017). Performance of self-consolidating high performance ternary blended concrete, Noble International Journal of Scientific Research, 1(2): 44-49.
Nepomuceno, M. and Pereira-de-Oliveira L. A. (2008). Parameters for self-compacting concrete mortar phase, American Concrete Institute Special Publication. 323–40.
Okamura, H. and Ouchi, M (2003). Self-compacting concrete. Journal of Advanced Concrete Technology, 1(1): 5 – 15.
Okamura, H. and Ozawa, K. (1995). Mix-design for self-compacting concrete, Concrete Library of JSCE, 25:107 – 120.
Olafusi, O.S., Adewuyi, A. P., Otunla, A. I. and Babalola, A. O. (2015). Evaluation of fresh and hardened properties of self-compacting concrete, Open Journal of Civil Engineering, 5: 1-7.
Pai B. H. V, Nandy M., Krishnamoorthy A., Sarkar P. K., Pramukh and Ganapathy, C. (2014). Experimental study on self-compacting concrete containing industrial by products, European Scientific Journal, 10(12): 292-300
Pereira-de-Oliveira, L. A., Nepomuceno, M. C. S., Castro-Gomes, J. P. and Vila, M. F. C. (2014). Permeability properties of self-compacting concrete with coarse recycled aggregates, Construction and Building Materials, 51:113–120 Robbie, M. A. (2018). Global CO2 emissions from cement production, Earth Syst. Sci. Data, 10, 195–217.
Rodgers, L. (2018). Climate Change: The massive CO2 emitter you may not know about. BBC News. Available: https://www.bbc.com/news/science-environment-46455844. Accessed: 7th January, 2019.
Safiuddin M., West J. S. and Soudki K. A., (2010). Hardened properties of self-consolidating high performance concrete including rice husk ash, Cement and Concrete Composites, 32: 708-717