Open Access Open Access  Restricted Access Subscription Access

Self-Compacting Concrete: Strength Evaluation of Corn Cob Ash in a Blended Portland Cement

Kayode Oluborode, Ilesanmi Olofintuyi


The paper investigates the prospects of corn-cob ash (CCA) as effective constituent in self-compacting concrete. The structural value of the composite was evaluated with consideration for its suitability as self-compacting concrete. Varied percentage of corn-cob ash at 0%, 10%, 20%, and 30% replaced cement in a mix of 1:2:4 concrete with variable plasticizer admixture of COMPLASTSP430 at 0%, 1%, 2% and 3% replacement. Specified tests for Self-compacting concrete (SCC), related to workability such as flowability, filling-ability, and passing-ability tests were carried out on fresh samples. Compressive strength of hardened cured (150 x 150 x 150) mm concrete cubes at 7days and 28 days were tested. The results showed that at 2% SP430 and 30% CCA replacement, the compressive strength was 20.37N/mm2, while the flowability, filling ability, passing ability, and segregation potential were 755mm, 29mm, 6 sec and 6.2mm respectively. On analysis and comparison of the results with known SCC standard, a percentage replacement of 2%SP430 and 30%CCA meet the requirement of self-compacting concrete.


Corn-Cob Ash; Compressive strength; Plasticizer; Self-compacting concrete; Segregation potential.

Full Text:



Adesanya D.A., Raheem A.A. 2009: Development of Corn Cob Ash Blended Cement, Construction and Building Materials, (Vol. 23, pp.347-352).

American Standard for Testing Materials, Specification for fly ash and raw or calcium natural pozzolana for use as a mineral admixture in Portland cement concrete. ASTMC 2005, 618-78.

American Society for Testing and Materials, Specifications for pozzolanas. ASTM International, USA, ASTM C618,1978

Dwivedia, V.N. et al”“A New Pozzolanic Material for Cement Industry: Bamboo Leaf Ash,” International Journal of Physical Sciences, vol. 1, no. 3, pp. 106-111, 2006.

European Federation of National Associations Representing for Concrete. (EFNARC): Specifications and Guidelines for Self-Compacting Conctete. 2002.

John N, et al, Advanced concrete Technology Processes, first edition (2003), England: Butterworth Heinemann, Elsevier Limited, 2003.

Khayat, K.H., Ghezal, A., Hadriche, M.S. (1999: Factorial design models for proportioning self-consolidating concrete, Materials and Structures, 32, 679–686.

Kou, S.C. and Poon, C.S. (2009) Properties of Self-Compacting Concrete Prepared with Coarse and Fine Recycled Concrete Aggregates. Cement and Concrete Composites, 31, 622-627.

Li, B., Wang, J. and Zhou, M. (2009) Effect of Limestone Fines Content in Manufactured Sand on Durability of Lowand High-Strength Concretes. Construction and Building Materials, 23, 2846 2850.

Mehta, P. K. (1997). Properties of blended cements made with sawdust ash. ACI Journal Proceedings, 74:440- 442.

Nair, D.G., et al, (2006) “Reactive Pozzolanas from Rice Husk Ash: An Alternative to Cement for Rural Housing.” Cement and Concrete Research, V. 36, pp. 1062-1071.

Nimityongskul, P., et al. (1995). Use of coconut husk Ash, corn cob ash and peanut shell ash as cement replacement. Journal of Ferro cement, 25(1): 35-44.

Nwofor T.C., et al, Stability of groundnut shell ash (GSA)/ordinary Portland cement (OPC) concrete in Nigeria, Advances in Applied Science Research, 2012 3(4):2283-2287, Available online at

Shetty M.S., Concrete Technology Theory and Practice, revised multi-colour edition. 2005, India: S.CHAND & COMPANY Ltd India.

Okamura H. et al., (2003): “Applications of Self Compacting Concrete in Japan,” Proceedings of the 3rd International RILEM Symposium on Self-Compacting.

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.

Olutoge F.A., et al, “Use of Coconut Husk Ash, Corn Cob Ash and Peanut Shell Ash as Cement Replacement,” Journal of Ferrocement, vol. 25, no. 1, pp. 35-44, 1995.

Raheem, A. A. et al, (2011), “A study of thermal conductivity of corn cob ash blended cement mortar”, The Pacific Journal of Science and Technology, Vol.12 No. 2, pp. 106 – 111

Raheem, A. A.; et al, (2010), “Effects of admixtures on the properties of Corn-Cob ash cement concrete”, Leonardo Electronic Journal of Practices and Technologies, Vol. 16, pp.13 – 20.

Singh, V. D. &Rai., R. (2000). Hydration of bagasse ash-blended Portland cement. Cem. Concr. Res.30: 1485-1488.

Raju G.U, et al, Mechanical and physical characterization of agricultural waste reinforced polymer composites, J.Mater. Environ. Sci. 3 (5) (2012) 907-916, ISSN: 2028-2508, pp 907-914.

Sakr, K. (2006). Effects of Silica Fume and Rice Husk Ash on the Properties of Heavy Weight Concrete. Journal of Materials in Civil Engineering, 18(3): 367-376.


  • There are currently no refbacks.




About ASRJETS | Privacy PolicyTerms & Conditions | Contact Us | DisclaimerFAQs 

ASRJETS is published by (GSSRR).