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All Journal Jurnal Ilmiah Teknik Sipil dan Arsitektur (JITAS)
Fendria, Riki
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Civil Engineering, Building, Construction & Architecture

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Desain Beton High Early Strength (HES) dengan Campuran Superplasticizer Fendria, Riki; Irwan, Irwan; Sumantri, Ahmad
Jurnal Ilmiah Teknik Sipil dan Arsitektur (JITAS) Vol 3, No 1 (2024): Jurnal Ilmiah Teknik Sipil dan Arsitektur (JITAS)
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitas.v3i1.3875

Abstract

High initial strength concrete technology is increasingly developing to meet modern projects requiring fast-hardening concrete. This research highlights the role of superplasticizers in achieving high initial strengths. Superplasticizers, and chemical additives, reduce water, accelerate hardening, and simplify concrete work. The compressive strength test method on cylindrical specimens was carried out at the age of 3, 7, and 28 days. Using 250 ml of superplasticizer per sack of cement, with water reduced by 40%, can achieve the quality of concrete f'c 25 MPa at 28 days old. The results showed that concrete with superplasticizer had higher initial compressive strength, increasing by 31.49% in 3 days, and 18.84% in 7 days compared to normal concrete. However, at 28 days old, compressive strength tends to be the same as normal concrete.
Co-Authors Irwan Irwan Sumantri, Ahmad