Aisha, Nabaggala (2023) The Effects Of Using Sikacim Additive To Investigate The Level Of Improvement In The Self-compacting Abilities And Compressive Strength Of Concrete. Other thesis, universitas islam riau.

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Abstract

The self-compacting ability of concrete is an important quality in Self-consolidating concrete because it improves the flow properties and filling ability of concrete in addition to reducing noise at the work site since no vibrators would be needed in compaction. This can be achieved by adding viscosity-enhancing agents or high-range water reducers as superplasticizers to the concrete in doses set by the manufacturer. This improves the flowability, filling ability, and self-compaction without causing segregation. In this research, Sikacim additive was used to investigate the improvement, if any, of the concrete in terms of self-compacting ability and compressive strength. This was added in proportions of 0%, 1.2%, 1.5%, and 1.8% of the binder. The fresh concrete properties were tested using the slump cone, and then cylinders of 15cm x 30cm were used to mold the specimens. The hardened properties were tested using a compressive strength testing machine after 28 days of curing in water. The results showed that the 1.8% mix had the best flowing and self-compacting ability with an average diameter of 355mm as compared to 340mm and 322.5mm for the 1.2% and 1.5% respectively. The highest compressive strength was also observed in the 1.8% concrete cylinders, which was 36.235 Mpa as compared to 21.043 and 26.138 Mpa of the 1.2% and 1.5% respectively. Finally, the 1.2% and 1.5% cylinders showed honeycombing which attested to the lack of self-compacting ability. This shows that while none of the mixes passed the standard requirements of SCC, the 1.8% concrete showed the highest potential.Self-Compacting ability, compressive strength, concrete, SCC, sikacim additive, Super plasticizer.

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