Amka, Ariq Muhtarom (2025) Analisis Kuat Tekan dan Workability Beton Self-Compacting Concrete (SCC) dengan Variasi Pengurangan Air dengan Menggunakan Zat Adiktif Sika® ViscoCrete®-3115 N. Other thesis, Universitas Islam Riau.

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Abstract

Self-Compacting Concrete (SCC) is an innovative type of concrete that can flow and compact itself without the need for mechanical vibration. The application of SCC requires a balance between workability and compressive strength, which is highly influenced by the water-to-cement ratio and the use of chemical admixtures. This study aims to analyze the effect of water reduction and the addition of Sika Viscocrete admixture on the compressive strength of SCC, as well as to compare the results with previous studies that used different admixture concentrations and water reduction levels. gThe concrete mix design in this study refers to SNI 7656:2012 concerning the Guidelines for Mix Design of Normal Concrete, Heavy Concrete, and Mass Concrete. The tests were conducted using a 1% dosage of Sika® ViscoCrete®3115 N additive with water reduction variations of 0%, 5%, and 10%. The slump flow method was used to evaluate the concrete's workability, while compressive strength tests were conducted on cylindrical specimens at the ages of 7 and 28 days. The results show that the compressive strength of SCC with 1% Sika® ViscoCrete® increased with higher water reduction percentages at 7 days of age. However, at 28 days, the compressive strength did not increase linearly with further water reduction. The slump flow test results indicated that increasing the water reduction percentage tends to decrease the workability of the concrete.

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