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All Journal Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Agusri, Erny
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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PENGARUH PENAMBAHAN PASIR BESI TERHADAP KUAT TEKAN BETON K-300 Agusri, Erny; A Rivai, Masri
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 6, No 1 (2019): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.2201201961

Abstract

The purpose of this study was to determine the effect of iron sand on the K-300 concrete compressive strength. Iron sand added with a variation of 2-4% using cube-shaped specimens with dimensions of 15 × 15 × 15 cm as many as 27 samples consisting of 3 variations, each with 9 samples, concrete quality tested at 3, 7, and 28 days. The results showed the compressive strength of normal concrete characteristics at 3 days of age was 238.76 Kg / cm2, 7 days was 270.64 Kg / cm2, and 28 days was 370.16 Kg / cm2, the addition of iron sand was 2% at 3 days amounting to 192.33 Kg / cm2 with an effect of -6.11%, 7 days amounting to 262.14 Kg / cm2with an effect of -3.87%, 28 days at 314.77 Kg / cm2 with an influence of -11.8%, addition of iron sand 3% at 3 days at 207.88 Kg / cm2 with an effect of -14.65 %, 7 days amounting to 262.28 Kg / cm2 with an effect of -4.94%, 28 days at 296.64 Kg / cm2 with influenceat -16.8%, the addition of 4% iron sand at 3 days at 178.06 Kg / cm2 with an effect of -14.97%, 7 days at 236.13 Kg / cm2 with an effect of -10.3% 28 days at 264.58 Kg / cm2 with an effect of -26.2%. based on the results of the study it can be concluded that the more iron sand we use, the more there is a decrease in the concrete compressive strength
PENGARUH PENAMBAHAN QUICKCURE CX TERHADAP UJI KUAT TEKAN BETON K-500 Agusri, Erny; Jaya, Wahyu Pratama
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 6, No 4 (2020): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.3223202064

Abstract

Quickcure CX is a chemical for concrete designed using the latest technological innovations, this added material can accelerate and increase the compressive strength of concrete by 5 - 10% and can reduce the moisture content in the concrete mixture by 5 - 10%. The purpose of this study was to increase and accelerate the effect of the compressive strength value of concrete produced by Quickcure CX added material on K-500 concrete.The research sample is a cube-shaped test object with a size of 15cmx15cmx15cm. There are 4 sample variations, namely: Normal Concrete, Normal Concrete + Quickcure cx 0.25%, Normal Concrete + Quickcure cx 0.45%, and Normal Concrete + Quickcure cx 0.65%, each variation consisting of 15 samples.After conducting the concrete compressive strength test, this study obtained the highest average compressive strength test results in Normal Concrete (503.2kg / cm2), Normal Concrete + Quickcure cx 0.25% (513.8kg / cm2), Normal Concrete + Quickcure 0.45% (536.4kg / cm2) and Normal Concrete + Quickcure cx 0.65% at 551.6kg / cm2 at the age of 28 days. So of the 4 variations in the value of the compressive strength test of concrete, it still increases in Normal Concrete + Quickcure cx 0.65%, and accelerating the concrete does not accelerate because the average age is 21 days with a variation of Normal Concrete + Quickcure cx 0.65% with a value of 488.8 kg / cm2 so the concrete has not reached the compressive strength that was planned.Keywords: Concrete, Quikcure CX, Compressive Strength, K-500
PENGARUH PENAMBAHAN FLY ASH DAN SERBUK KACA TERHADAP KUAT TEKAN BETON K-300 Agusri, Erny; Efranda, Fajriyansyah
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 6, No 2 (2019): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.2831201962

Abstract

Pada penelitian ini penulis mengambil fly ash dan serbuk kaca sebagai bahan tambah pada campuran beton. Penelitian ini bermaksud untuk mengetahui pengaruh penggunaan fly ash dan serbuk kaca terhadap kuat tekan beton K-300. Penelitian ini menggunakan benda uji berbentuk kubus dengan ukuran 15x15x15. Jumlah keseluruan benda uji pada penelitian ini sebanyak 45 sempel, masingmasing 9 sempel benda uji pada 5 variasi yaitu beton normal, beton normal + fly ash 14% + serbuk kaca 18%, beton normal + fly ash 15% + serbuk kaca 18%, beton normal + fly ash 16% + serbuk kaca 18% dan beton normal + fly ash 17% + serbuk kaca 18%. Setelah dilakukan uji kuat tekan beton, maka kuat tekan beton karakteristik pada penambahan fly ash 14 % dan serbuk kaca 18% didapat nilai kuat tekan beton maksimum sebesar 180, 55 Kg/Cm2 pada umur 3 hari, 252,59 Kg/Cm2 pada umur 14 hari, dan 355,30 Kg/Cm2 pada umur 28 hari. Hasil tersebut melebihi nilai kuat tekan karakteristik beton normal dan menunjukkan bahwa fly ash dan sebuk kaca meningkatkan kuat tekan beton. Terjadi pengaruh yang kuat dari penambahan fly ash dan serbuk kaca dengan variasi penambahn dan umur beton tertentu.
Co-Authors A Rivai, Masri Efranda, Fajriyansyah Jaya, Wahyu Pratama