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All Journal Jurnal Penelitian Teknik Sipil Konsolidasi
Syahriman, Syahrul
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Civil Engineering, Building, Construction & Architecture Engineering Materials Science & Nanotechnology

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Reduksi Semen Dengan Fly Ash Dengan Bahan Tambah Polycarboxilate Terhadap Kuat Tekan Dan Kuat Tarik Beton Sammin, Widianto; Syahriman, Syahrul; Yuniarto, Eka
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 3 No. 2 (2025): Jurnal Penelitian Teknik Sipil Konsolidasi, Mei 2025
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v3i2.4546

Abstract

The structural engineering field is advancing rapidly. Fly Ash contains silica, similar to cement. This study examines the use of Fly Ash waste as a cement substitute in concrete production, with polycarboxylate added. Fly Ash was used at 15% and 30% with polycarboxylate at 1% and 2%. The target compressive strength was 25 MPa, with normal concrete mix. Tests focused on compressive strength in polycarboxylate variations. Another set of concrete mixes substituted 15% and 30% cement with Fly Ash, adding polycarboxylate at 1% and 2% of cement content. Results showed a compressive strength of 25.38 MPa for normal concrete and 25.78 MPa and 25.94 MPa for 1% and 2% polycarboxylate mixes, respectively. With 15% and 30% Fly Ash plus 1% polycarboxylate, compressive strength increased by an average of 0.635 MPa; with 2% polycarboxylate, it averaged 5.25 MPa. Similarly, for tensile strength, 1% polycarboxylate with 15% and 30% Fly Ash achieved an average of 5.45 MPa, while 2% polycarboxylate reached 18.63 MPa with the same Fly Ash percentages.
Co-Authors Eka Yuniarto Sammin, Widianto