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All Journal Stabilita : Jurnal Ilmiah Teknik Sipil Fakultas Teknik Universitas Halu Oleo Kendari Jurnal Karajata Engineering
Yusuf, Jasman
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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EFFECT OF COMPRESSIVE STRENGTH AND SLUMP VALUE OF CONCRETE USING LIME POWDER (CaCO3) AS A PARTIAL REPLACEMENT OF CEMENT Sultan, Muhammad Aswar; Yusuf, Jasman; Hamsyah, Hamsyah
STABILITA || Jurnal Ilmiah Teknik Sipil Vol 11, No 3 (2023):
Publisher : Fakultas Teknik Jurusan Sipil Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/jts.v11i3.43398

Abstract

Lime powder is the result of burning with a temperature of  900-1500 °C from limestone and then immediately splashed with air when conditions are hot. Limestone is a material derived from white and fine sedimentary rock which is mainly composed of the mineral calcium. This study aims to determine the effect of strong compressive strength and slump value on the partial replacement of cement with lime powder. This study used an experimental method by comparing the compressive strength and slump value of concrete mixed with lime powder. This research was conducted for 2 months. The results showed that variations of 0%, 1% and 5% lime powder met the desired slump requirements, which were between 50 – 125 mm, while the 10% variation did not meet the requirements. Testing the compressive strength of concrete at 28 days with a 0% variation of 25.29 MPa, a 1% variation of 25.38 MPa, a 5% variation of 25.57 MPa and a 10% variation of 20.67 MPa. So it can be concluded that lime powder can be used as a partial replacement for cement with variations of 1% and 5% because the slump value meets the requirements and the resulting compressive strength has increased from normal concrete.
Studi Penggunaan Aspal Modifikasi pada Campuran Aspal Porus Yusuf, Jasman; Widarto, Hendro; Hidayat, Arief
Jurnal Karajata Engineering Vol. 1 No. 1 (2021): 2021
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.003 KB) | DOI: 10.31850/karajata.v1i1.692

Abstract

Penelitian ini bertujuan Untuk mengetahui pengaruh campuran aspalporus yang menggunakan aspal Modifikasi dengan gradasi IowaStormwater Managemen (2009).Untuk mengetahui campuran aspal porusyang menggunakan bahan pengikat aspal modifikasi agar dapatmemenuhi parameter struktur perkerasan Aspal Berpori.Penelitian ini dilaksanakan di Laboraturium Pemeriksaan BahanJalan dan Jembatan Bina Marga Dinas Prasarana Wilayah ProvinsiSulawesi Selatan Km. 16 Kota Makassar dengan metode kuantitatif. Datadatahasil uji laboraturium diolah dalam bentuk angka, grafik dan table serta dianalisis dengan membandingkan parameter standar yangdipersyaratkan (data diolah dalam bentuk kuantifikasi). Teknik analisisdata yang digunakan Analisis karakteristik material metode AASHTO,ASTM dan Bina Marga.Analisis model kinerja fungsi kekuatan campuranaspal berpori dilakukan dengan membandingkan hasil pengujian denganparameter seperti stability, cantabro loss, binder drain down.Analisismodel kinerja pemeriksaan aspal mengunakan metode Standar NasionalIndonesia (SNI). hasil pengujian menunjukkan hasil analisis grafikhubungan beberapa parameter kinerja aspal poros (cantabro loss,porositas, permeabilitas, stabilitas marshall, flow, marshall quotient danbinder drain down) adalah 7,15% untuk penggunaan aspal modifikasiaspal polimer 50% aspal Liquid Asbuton 50%.
Co-Authors Achmad, Fariz Hamsyah, Hamsyah Sultan, Muhammad Aswar Widarto, Hendro