Pengaruh Penambahan Sikament-Nn Dan Silica Fume Terhadap Kuat Tekan Beton SCC (Self Compacting Concrete)

V Johannes, Th J. M. Sahureka, Suryanto Intan

Abstract


In carrying out construction and other infrastructure, the community, both service providers and service users of Ambon City, do not clearly know the use of Sikament-NN and Silica fume for the compressive strength of concrete, which is in accordance with the material conditions, both cement and available aggregate. This research was conducted to determine the aggregate characteristics, mix design, the results of the comparison of the compressive strength of concrete with the use of Sikament-NN and Silica fume additives and a combination of the two additives, as well as the effect of the addition of Sikament-NN and Silica fume and a combination of the two additives on the compressive strength of concrete. SCC (Self Compacting Concrete). The data collection process was carried out using the experimental method, namely the researcher directly conducted the research and took the required data related to the testing that the researcher was doing. Therefore the researchers tested the aggregate characteristics, concrete mix design using SNI 03-2834-2000 and f'c design compressive strength of 30 MPa. The results of the fine aggregate characteristic study obtained Wv 1.22 gr/cm3, BJAH 2.51, WC 6.43%, MHB 3.09, C 1.90% and the organic content was light yellow. For coarse aggregate Wv 1.20 gr/cm3, BJAH 2.61, WC 2.38%, MHB 6.59, C 0.80%. Mix Design for concrete compressive strength f'c 30 MPa : Cement 539.47 kg, Sand 747.56 kg, Crushed Stone 851.84 kg, Water 181.13 Kg, Sikament-NN 1.5% 2.72 KG Silica Fume 15% 80.92 Kg. The compressive strength of concrete at 28 days for normal concrete was 34.17 MPa, concrete with Sikament-NN 1.5% 36.09 MPa, concrete with Silica Fume 15% 34.36 MPa, concrete with a combination of the two added ingredients 35.13 MPa. The yield percentage at 28 days for normal concrete was 113.90%, concrete with Sikament-NN 1.5% 120.30%, concrete Silica Fume 15% 114.53%, concrete with a combination of both ingredients added 117.60%. Thus, from the results of the normal concrete compressive strength test, concrete with the addition of 1.5% Sikament-NN, concrete with the addition of 15% Silica Fume and a combination of the two added materials meets the design compressive strength of f'c 30 MPa

Keywords


Aggregates; Added Materials (Admixture); Concrete

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DOI: https://doi.org/10.51135/manumatav9i1p57-63

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