Characteristics of Self-Compacting Concrete with Different Size of Coarse Aggregates and Alccofine
DOI:
https://doi.org/10.48048/tis.2022.3042Keywords:
Self-compacting concrete (SCC), Coarse aggregates, Alccofine, Fresh properties, Compressive strengthAbstract
The findings of an experiment examining the efficacy of different size of coarse aggregates on the fresh and strength properties of Self-Compacting Concrete (SCC) and Alccofine based SCC are described in this article. For this study, 5 different coarse aggregate sizes (10 - 4.75, 12.5 - 10, 16 - 12.5, 20 - 16 and 20 - 4.75 mm) were used with conventional SCC to determine the workability and strength properties. The water to binder ratio of 0.4 is maintained for all mixtures. Workability properties like slump-flow, T50 time, V-funnel and L-box tests and hardened property of compressive strength were studied. From the conventional SCC results based on sufficient fresh and strength values, the optimal blend is chosen and analyzed further with Alccofine substitution of 10, 20, 30, 40, 50 and 60 %. The test results revealed that the maximum size of aggregate did not influence much on the workability. Whereas the combination of aggregate sizes with the replacement of cement by 30 % of Alccofine had given optimum results on fresh and strength properties. Also, a numerical analysis was carried out, with Finite Element Modeling (FEM) to analysis the compressive strength and compared them to experimental findings. The consequence of FEM shows it is a reliable technique to validate experimental data.
HIGHLIGHTS
- The fresh and Strength properties of SCC were studied
- Five Different sizes of coarse aggregates and varying percentage of Alccofine were used
- The use of the mixed size aggregate had good flowability and better packing density
- Replacement of Alccofine by cement enhanced both fresh and strength properties
GRAPHICAL ABSTRACT
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