Raharjo, Tri (2026) PENGARUH ADMIXTURE TYPE F (POLYCARBOXYLATE) PADA MIX DESIGN Fc’ 41,5 MPa TERHADAP NILAI KUAT TEKAN BETON. Sarjana (S1) thesis, Universitas Muhammadiyah Indonesia.
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Abstract
Rapid developments in the construction industry have driven an increasing demand for high-strength concrete featuring optimal compressive strength and workability. This study aims to analyze the effect of adding Type F polycarboxylate-based chemical admixture (FBAS HPF-27) on the slump value and compressive strength of structural concrete with a target strength of fc’ 41.5 MPa (equivalent to K-500) at 28 days of hydration, while determining the most optimal dosage. A quantitative laboratory experimental method was conducted at PT. Adhimix PCI Indonesia Plant Cikarang, adhering to the SNI 03-2834-2000 standard with a constant water-cement ratio (W/C) of 0.43. The admixture dosages tested were 0% (control), 0.6%, 0.8%, and 1.0% by weight of cementitious material, utilizing a total of 12 cylindrical specimens (Ø 10 cm x 20 cm) adjusted with an L/D correction factor of 1.04 in accordance with SNI 1974:2011. The results indicated that adding the admixture increased the fresh concrete slump value from 120 mm (control) up to 165 mm at a 1.0% dosage. At 28 days, the average L/D converted compressive strength increased from 43.79 MPa (control) to 48.77 MPa at 0.6%, reaching its peak at a 0.8% dosage with 51.47 MPa alongside a water reduction of 16.54%. However, increasing the dosage to 1.0% caused a decline in compressive strength to 50.36 MPa due to exceeding the admixture saturation point. This study concludes that polycarboxylate admixture effectively enhances the performance of high-strength concrete, with an optimal application dosage of 0.8%.
| Item Type: | Thesis (TA, Skripsi, Tesis, Disertasi) (Sarjana (S1)) |
|---|---|
| Contributors/Dosen Pembimbing,NIDN Dosen bisa diakses di LINK https://bit.ly/NIDNdosenunismabekasi: | Contribution Contributors / Dosen Pembimbing NIDN Contributor Paryati, Ninik 04-290179-03 Contributor Sylviana, Rika 04-230968-04 |
| Keywords / Kata Kunci: | Beton, Polycarboxylate, Slump, Kuat Tekan, Dosis Optimum |
| Subjects: | Eksperimen Manajemen Konstruksi |
| Faculty: | Fakultas Teknik > Teknik Sipil S1 |
| Depositing User: | Mr Tri Raharjo |
| Date Deposited: | 18 Aug 2026 07:39 |
| Last Modified: | 18 Aug 2026 07:39 |
| URI: | http://repository.umindonesia.ac.id/id/eprint/10673 |
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