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Analisis Kuat Tekan Beton Dengan Penambahan Campuran Silica Fume Untuk Mutu Beton K-300 Dalam Penggunaan Jalan Rigid Pavement ivone triasiwi; Agus Budiono; Abdul Basid
JURNAL ILMIAH FAKULTAS TEKNIK Vol 2 No 1 (2021): Maret - Juni 2021
Publisher : Universitas Islam Syekh Yusuf Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (622.403 KB)

Abstract

Latar Belakang: Penggunaan beton merupakan pilihan yang baik sebagai pengganti aspal untuk dijadikan pengikat antara agregat halus, agregat kasar, dan filler. Beton harus memenuhi persyaratan karena sifat beton sendiri akan mengalami perkerasan akibat adanya semen, agregat halus, agregat kasar, air dan bahan tambah. Tujuan: Tujuan penelitian ini adalah untuk mengetahui hasil nilai kuat tekan dalam penambahan campuran Silica fume terhadap beton normal pada kuat tekan beton dan untuk mengetahui perbandingan rancangan campuran menggunakan Silica fume dengan beton normal. Metode: Metode pada penelitian ini adalah dengan menggunakan British Standard. Cara tersebut digunakan sebagai dasar perencanaan campuran beton di Peraturan Beton Indonesia 1972 (PBI 1971). Komposisi Silica fume yang digunakan 0%, 15%, 45%, dan 65 % dari berat semen. Mutu beton awal yang direncanakan K-300 sebagai pembanding yang diuji pada umur 7 hari, 14 hari, dan 28 hari. Penelitian ini menggunakan benda uji berbentuk silinder ukuran 15 cm x 30 cm sebanyak 36 benda uji dimana untuk setiap penelitian menggunakan 3 pembanding. Hasil Penelitian: Nilai kuat tekan beton pada persentase penambahan Silica fume 0 % hingga pada umur beton 28 hari tercapai nilai kuat tekan rencana pada karakteristik 300 Kg/cm2, pada penambahan Silica fume 15 % target kuat rencana karakteristik 300 Kg/cm2 tercapai pada umur beton 28 hari, untuk penambahan Silica fume 45 % nilai kuat tekan mengalami penurunan tetapi masih dalam nilai kuat tekan rencana pada K-300 dimana target kuat tekan rencana tercapai pada umur beton 28 hari dengan nilai kuat tekan 390,76 Kg/cm2. Pada trial mix terakhir yaitu dengan penambahan Silica fume 65% target kuat tekan rencana tidak tercapai pada umur beton 28 hari atau bisa dikatakan lebih rendah 175,50 Kg/cm2 dari trial mix sebelumnya pada penambahan Silica fume 45 % pada umur beton yang sama. Untuk penambahan Silica Fume 65 % pada umur beton 28 hari diperoleh nilai 215,26 Kg/cm2. Kata Kunci : Additive Silica Fume, Kuat Tekan Beton, Rigid Pavement
PENGARUH DOSIS PUPUK KANDANG AYAM DAN PEMBERIAN DEKOMPOSER MIKROORGANISME TERHADAP PERTUMBUHAN DAN HASIL KENTANG (Solanum tuberosum, L.) VARIETAS GRANOLA WARYANTO WARYANTO; TEGUH SUPRIYADI; AGUS BUDIONO
JURNAL ILMIAH AGRINECA Vol. 12 No. 1 (2012): JURNAL AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v12i1.499

Abstract

This research purpose to know dosage of chiken stable manure and effective microorganisme (EM4) towards growth and result of potato. The hipotesis was dosage of chiken manure 10 ton/ha with effektuive microorganisme 10 ton/ha will take growth and yield the best. This research was cariied out in Pandansari, Paguyangan, Brebes. The heigent place of 1700 dpl, with latosol soil type. This resear birth was done from Juli-September 2011. The research meteode was factorial with Randomized Completly Block Design (RCBD), consist of two factors, that was : 1). Dosage of chiken stables manure (K) with 3 levels, that was : 5 ton/ha, 10 ton/ha and 15 ton/ha. 2). Dosage of effektive microorganism with 3 levels, that was: 0 l/ha, 5 l/ha, and 10 l/ha. The result of this research was 1) Dosage of chiken stable manure was significant to weight of tube, sum of branchdry weight crop, height of plant, sume of stem, sum of leaf and diameters of  tube. 2) dosage of effective microorganism was signiticant to sum of branch and sum of leaf. 3) interaction about dosage of chiken stable manure and effektive microorganism was significant to dry weight crop. 4) the best yield on dosage of chiken stable manure 10 ton/ha.
Pemanfaatan Campuran Myrmecodia Pendans dan Piper Crocatum Sebagai Green Corrosion Inhibitor pada Inhibitor Kimia Jenis Koktail untuk Proteksi Korosi Baja API 5L Grade B dalam Larutan NaCl 3,5% Rani Kusumawardani; Agus Budiono; Johny Wahyuadi Soedarsono; Yudha Pratesa
Recent in Engineering Science and Technology Vol. 3 No. 03 (2025): RiESTech Volume 03 No. 03 Years 2025
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v3i3.112

Abstract

Method to prevent the corrosion during pipeline hydrotest using seawater is generally by the addition of inorganic inhibitor containing corrosion inhibitor agent, oxygen scavenger and biocide, so that require to find out the alternative eco-friendly materials with better performance. The main objective of this study is to investigate the efficiency of the use of mixture of extract of Myrmecodia pendans and Piper crocatum as an alternative of eco-friendly inhibitor for reducing the use of inorganic inhibitors for corrosion protection of steel material API 5L Grade B in 3.5% NaCl. The corrosion inhibition ability of natural ingredient extraction are investigated by using tafel polarization test and EIS and verified by weight loss test. The content of the active compounds in natural ingredient extraction along with adsorption compound on metal surfaces and inhibition mechanism are investigated by EIS, FTIR and adsorption isotherm model. In the mixed green inhibitor concentration of 2 ml Myrmecodia pendans and 1 ml Piper crocatum is resulted in approximately 73.66% inhibitor efficiency while concentration of 1 ml chemical cocktail and 2 ml green inhibitor are significantly reduce the corrosion rate from 0.42 mm/year to be 0.03 mm/year with approximately 93.15% inhibitor efficiency. The green inhibitor affected the cathodic as well as the anodic polarization curves which were known as mixed corrosion inhibitor type. The adsorption of compounds contained in the Myrmecodia pendans and Piper crocatum on a metal surface are occur spontaneously follows the Langmuir adsorption isotherm.
Co-Authors Abdul Basid ivone triasiwi Johny Wahyuadi Soedarsono Rani Kusumawardani Teguh Supriyadi WARYANTO WARYANTO Yudha Pratesa