Workability and Mechanical Properties of High-Strength Self-Compacting Concrete Blended with Metakaolin

International Journal of Civil Engineering

© 2018 by SSRG - IJCE Journal

Volume 5 Issue 10

Year of Publication : 2018

Authors : Ubojiekere E. Obunwo, Barisua, E. Ngekpe, Godfrey, W.T Jaja, Chimene Obunwo

10.14445/23488352/IJCE-V5I10P103

How to Cite?

Ubojiekere E. Obunwo, Barisua, E. Ngekpe, Godfrey, W.T Jaja, Chimene Obunwo, "Workability and Mechanical Properties of High-Strength Self-Compacting Concrete Blended with Metakaolin," SSRG International Journal of Civil Engineering, vol. 5,  no. 10, pp. 17-22, 2018. Crossref, https://doi.org/10.14445/23488352/IJCE-V5I10P103

Abstract:

This study investigates the effects of metakaolin on the fresh state and compressive strength of high strength self-compacting concrete. The particle parking model (PPM) was adopted for the mix design of concrete constituents. The prime rational was to eliminate void in the self-compacting concrete (SCC). Metakaolin was used to replace cement at three incorporation ratios of 5%, 10% and 15% at varying water to cementitious ratios of 0.25, 0.30, 0.35 and 0.40. Mixes were designed to achieve both self-compatibility and high compressive strength. Several workability tests such as slump flow, L- box, V-funnel and J-ring were carried out. The compressive strength was measured at 7, 14 and 28 days of wet curing. The results showed that the mix design method was adequate to proportion SCC mixtures containing cement and metakaolin. All fresh state properties satisfied EFNARC criteria (EFNARC, 2005). The highest compressive strength of 69.6 MPa was obtained for concrete using metakaolin. For all mixtures, metakaolin increased compressive strength appreciably. A similar trend was observed in all the concrete mixes and there was progressive increase in compressive strength as metakaolin inclusion level increased.

Keywords:

Self-Compacting Concrete, Metakaolin, Compressive Strength, Particle Parking Model, Water/Cement Ratio.

References:

[1] EFNARC. (2005). European Federation of National Trade Associations (EFNARC). The European Guidelines for Self-Compacting Concrete – Specification, Production and Use, SCC European Project Group. 
[2] EN 12620, (2000). Aggregates for Concrete. The European Standards, CEN, Brussels. The European Committee for Standardization. 
[3] EN 197-1, (1995). Composition, Specifications and Conformity Criteria for Common Cements, Cement – Part 1, The British Standards Institution, CEN, Brussels. The European Committee for Standardization. 
[4] EN 934-2., (1995). Admixtures for Concrete, Mortar and Grout: Concrete Admixtures, Part 2. The British Standards Institution, CEN, Brussels. The European Committee for Standardization. 
[5] Erhan, G., Mehmet, G., Asraa, A., & Suleyman, I. (2015). Fresh and rheological behavior of nano-silica and fly ash blended self-compacting concrete. Journal of science direct, 14, 455-465. 
[6] Guneyisi, E., & Gesoglu, M. (2008). properties of self-compacting mortars with binary and tenary cementitious, blends of fly ash and metakaolin. Journal of material and structure, 41, 1519-31. 
[7] Guneyisi, E., Gesoglu, M., & Ozbay, E. (2009). Evaluating and frecasting the initial and final setting times of self-compacting concretes containing mineral admixture by neural network. Journal of material and structure, 42,469-84. 
[8] Ha Thanh, L., & Horst-Michael, L. (2016). Effect of rice husk ash and other mineral admixtures on properties of self compacting high-performance concrete. Journal of material and design, 89, 156-166. 
[9] Mandandoust, & Mousavi (2012). fresh and hardened properties of self-compacting concrete containing metakaolin. Journal of construction and building materials, 35, 752-760. 
[10] Nikbin, L., Beygi, M., Kazemi, M., Kazemi, J., Rabbanifar, S., Rahmani, E., & Rahimi, S. (2014). A compressive investigation into the effect of water to content ratio and powder content on mechanical properties of self compacting concrete. Journal of construction and building materials, 57, 69-80. 
[11] Obunwo, U. (2018). Mechanical Properties of Self Compacting Concrete Using Metakaolin as Partial Replacement for Binder. Unpublished Masters Dissertation. Department of Civil Engineering, Rivers State University. Nigeria. 
[12] Peiliang, S., Linnu, L., Wei, C., Fazhou, W., & Shuguang, H. (2017). Efficiency of metakaolin in steam cured high strength concrete. Journal of construction and building materials, 152, 357-366. 
[13] Sina, D., & Jiping, B. (2017). Mechanical and micro structural properties of self compacting concrete blended with metakaolin ground granulated blast-furnace slag and fly ash. Journal of construction and building materials, 146, 658-667.