NURFAUZIAH, YETI (2020) PENGARUH PENAMBAHAN SERAT KAWAT BENDRAT LURUS DAN SUPERPLASTICIZER PADA BETON MUTU TINGGI TERHADAP KUAT TEKAN BETON. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Concrete compressive strength is the amount of load per unit area that causes the concrete specimen to collapse when loaded with a certain compressive force. This final project aims to conduct a test research on a composition of mix design and journals with high strength concrete composition with added material of straight bendrat wire and superplasticizer to the compressive strength of concrete with a total of 36 samples. The test object used is a concrete cylinder with a diameter of 15 cm and a height of 30 cm for the compressive strength test. The fraction volume of straight bendrat wire fiber is 0%, 0.3%, 0.5%, 0.7% and the variation of the superplasticizer sikamen NN-sika is 0.5%. The planned concrete quality is fc 40 MPa. Concrete compressive strength tests were carried out at the age of 7, 14 and 28 days. The results of the concrete test conducted show that the compressive strength of the concrete with the fraction volume of straight bendrat wire fibers and the superplasticizer has a low compressive strength value along with the increase in the fraction volume of straight bendrat wire fibers. Key words: addition of straight bendrat wire fibers, superplasticizer, concrete compressive strength. Kuat tekan beton adalah besarnya beban per satuan luas yang menyebabkan benda uji beton hancur bila dibebani dengan gaya tekan tertentu. Tugas Akhir ini bertujuan melakukan penelitian pengujian terhadap suatu komposisi mix design dan jurnal dengan komposisi beton mutu tinggi dengan bahan tambah serat kawat bendrat lurus dan superplasticizer terhadap kuat tekan beton dengan total benda uji 36 sampel. Benda uji yang digunakan adalah silinder beton dengan diameter 15 cm dan tinggi 30 cm untuk pengujian kuat tekan. Dengan volume fraction serat kawat bendrat lurus 0%, 0.3%, 0.5%, 0.7% dan variasi superplasticizer sikamen NN-sika adalah 0.5%. Mutu beton yang direncanakan adalah fc 40 MPa. Uji kuat tekan beton dilakukan pada umur 7, 14 dan 28 hari. Hasil pengujian beton yang dilakukan menunjukan bahwa nilai kuat tekan beton dengan volume fraction serat kawat bendrat lurus dan superplasticizer memiliki nilai kuat tekan yang rendah seiring dengan bertambahnya volume fraction serat kawat bendrat lurus. Kata kunci : penambahan serat kawat bendrat lurus, superplasticizer, kuat tekan beton.
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