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Experimental Study on the Workability of Self-Compacting Granite and Unwashed Gravel Concrete

Bamigboye, Gideon and Olukanni, D. O. and Adedeji, Adeola A. and Jolayemi, Kayode J. (2017) Experimental Study on the Workability of Self-Compacting Granite and Unwashed Gravel Concrete. International Journal of Engineering Research in Africa, 31. pp. 69-76. ISSN 1663-4144

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This study deals mainly with the mix proportions using granite and unwashed gravel as coarse aggregate for self-compacting concrete (SCC) and its workability, by considering the water absorption of unwashed gravel aggregate. Mix proportions for SCC were designed with constant cement and fine aggregate while coarse aggregates content of granite-unwashed gravel combination were varied in the proportion 100%, 90%/10%, 80%/20%, 70%/30%, 60%/40%, 50% /50%, represented by SCC1, SCC2, SCC3, SCC4, SCC5 and SCC6. 100% granite (SCC1) serves as the control. The workability of the samples was quantitatively evaluated by slump flow, T500, L-box, Vfunnel and sieve segregation tests. Based on the experimental results, a detailed analysis was conducted. It was found that granite and unwashed gravel with SCC1, SCC2 and SCC3 according to EFNARC (2002) standard have good deformability, fluidity and filling ability, which all passed consistency test. SCC1, SCC2 and SCC3 have good passing ability while all mixes were in the limit prescribed by EFNARC (2002). It can be concluded that the mix design for varying graniteunwashed gravel combination for SCC presented in this study satisfy various requirements for workability hence, this can be adopted for practical concrete structures.

Item Type: Article
Uncontrolled Keywords: workability, granite, unwashed gravel, self-compacting concrete, aggregate
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 28 Aug 2017 11:39
Last Modified: 28 Aug 2017 11:39

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