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All Journal Construction and Material Journal
Hakim, Haudiah
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Civil Engineering, Building, Construction & Architecture

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STUDI EKSPERIMENTAL PENGARUH GGBFS DAN SUPERPLASTICIZER TERHADAP KUAT TEKAN DAN MODULUS ELASTISITAS BETON Susilowati, Anni; Pratikto, Pratikto; Hakim, Haudiah; Raden Bagus Anggietantyo Akiranda
Construction and Material Journal Vol. 7 No. 2 (2025): Construction and Material Journal Vol. 7 No. 2 Oktober 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v7i2.7749

Abstract

The use of alternative materials in concrete mixtures is an important effort to improve concrete performance while reducing dependence on cement. This study aims to investigate the effect of adding Ground Granulated Blast Furnace Slag (GGBFS) as a partial substitute for cement on the properties of concrete, both in fresh and hardened conditions, using a constant dosage of type F superplasticizer at 1% of the cement weight. The GGBFS replacement levels used in this study were 0%, 20%, 30%, and 40%. The tests conducted included slump, unit weight, initial setting time, compressive strength, splitting tensile strength, flexural strength, and modulus of elasticity. The results showed that the use of GGBFS significantly affected compressive strength and splitting tensile strength, with optimum results achieved at the 20% replacement level. In contrast, other properties such as flexural strength and unit weight were not significantly influenced. Therefore, GGBFS can be considered an effective supplementary material in concrete mixtures when used at an appropriate dosage.
Co-Authors Anni Susilowati Pratikto Pratikto Raden Bagus Anggietantyo Akiranda