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CANGKANG PALA SEBAGAI MATERIAL PENGGANTI SEBAGIAN AGREGAT KASAR PADA BETON NORMAL Budiman Budiman; Imran Imran; James WTP
Prokons: Jurnal Teknik Sipil Vol 15, No 2 (2021): Agustus 2021
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v15i2.331

Abstract Normal concrete uses fine aggregate and coarse aggregate with concrete density 2200 kg/m3 -2400 kg/m3 with a compressive strength of about 15-40 MPa. The purpose of this study is to determine characteristics of the concrete aggregate and the compressive strength of the concrete design based on the DOE (Department of Environment) method and the SNI Standard. In this research, the use of nugmet shell was varied as follows: 0%, 0,25%, 0,50%, 0,75% and 1% of the cement weight. The results showed that the use of nutmeg shells as a normal concrete affected the specific gravity and the value compressive strength of concrete. The higher the percentage of nutmeg shells, the lower the specific gravity and compressive strength of the concrete. The average value of concrete density to nutmeg shell 2254.72 (kg/m3 ) and normal concrete 2304.32 (kg/m3 ). The compressive strength of normal concrete is 224.2 kg/cm2 and the concrete from nutmeg shell the composition of 0.25% and 0.5% obtained by 129.6 kg/cm2 and 140.0 kg/cm2 increases the use of nutmeg shell 0.75% and 1% obtained value of 117.6 kg/cm2 and 118.1 kg/cm2 decreased at the age of 28 days. The compressive strength of normal concrete 22 MPa while the maximum nutmeg shell concrete 14 MPa, so it does not meet the quality of normal concrete in general. Keywords: Aggregate Characteristics, nutmeg shell, Characteristics Compressive Strength

STUDI EKSPERIMENTAL KUAT TEKAN BETON YANG MENGGUNAKAN PASIR LAUT SEBAGAI AGREGAT HALUS DI KABUPATEN FAKFAK PROVINSI PAPUA BARAT Imran Imran; Muhammad Yunus
INOVTEK POLBENG Vol 7, No 2 (2017): INOVTEK Volume 7, No 2, November 2017
Publisher : POLITEKNIK NEGERI BENGKALIS

Penggunaan agregat halus di Kabupaten Fakfak sebagai penyusun campuran beton untuk pekerjaan konstruksi secara umum masih tergantung pada pasir laut yang potensinya cukup besar. Penelitian ini bertujuan untuk; 1) mengetahui karakteristik pasir laut dan Pasir Sungai ; 2) mengetahui kuat tekan beton yang dihasilkan dari pasir laut dan pasir sungai pada pengujian 3, 7 dan 28 hari. Penelitian ini merupakan penelitian laboratorium berbasis sampel dan analisis karakteristik agregat dan uji tekan beton. Pasir laut Jalan Baru/Reklamasi, pasir sungai Palu dan pasir laut Kampung Seberang secara umum memenuhi persyaratan pengujian karakteristik agregat, namun demikian pasir yang paling baik digunakan adalah pasir laut Jalan Baru/Reklamasi dengan modulus kehalusan 2.183 dan masuk zone 2 (pasir agak kasar). Kuat tekan beton yang paling tinggi dari umur awal beton sampai akhir diperoleh dari pasir laut jalan Baru/Reklamasi dengan kuat tekan sebesar 93.86 kg/cm2 (umur beton 3 hari), 130.57 kg/cm2 (umur beton 7 hari), dan 172.61 kg/cm2 ( umur beton 28 hari). Sedangkan kuat tekan beton paling rendah pada umur awal beton (umur beton 3 dan 7 hari) diperoleh dari pasir sungai Palu, dengan kuat tekan sebesar 65.34 kg/cm2 (umur beton 3 hari), 101.20 kg/cm2 (umur beton 7 hari) dan 141.74 kg/cm2 (umur beton 28 hari). Kata Kunci- Pasir Laut, Pasir Sungai, Kuat Tekan Beton

Analisa Nilai Stabilitas Asphalt Concrete-Wearing Course (AC-WC) Menggunakan Pasir Laut Di Kabupaten Fakfak Aqilah Attamimi; Imran Imran
Jurnal Ilmiah Teknik Informatika dan Komunikasi Vol. 2 No. 1 (2022): Maret : Jurnal Ilmiah Teknik Informatika dan Komunikasi
Publisher : Lembaga Pengembangan Kinerja Dosen

Langkah pemeliharaan yang rutin dilakukan sebagai upaya agar sebuah bangunan konstruksi jalan dapat mencapai umur rencana dan juga dapat melindungi lapisan perkerasan dari kerusakan ruas jalan tersebut. Jenis kerusakan yang sering dijumpai adalah kerusakan dini berupa retak, retak alur atau perubahan bentuk lainnya. Penelitian ini bertujuan untuk Mengetahui karakteristik campuran Asphalt Concrete Wearing Course (AC- WC) dengan menggunakan material pasir laut khususnya pada nilai Stabilitas. Pada penelitian ini benda uji dicampur menggunakan nilai kadar aspal optimum 6,5% kemudian dilanjutkan dengan pengujian Marshall sesuai dengan spesifikasi umum Bina Marga tahun 2018. Hasil penelitian menunjukkan adanya hubungan dari variasi rendaman terhadap parameter Marshall seperti nilai Stabilitas, VMA, Density, MQ, flow. Pada benda uji dengan variasi rendaman 30 menit, 24 jam dan 48 jam, didapatkan hasil nilai parameter Marshall yang memenuhi spesifikasi yaitu nilai Stabilitas 1445 kg, nilai VMA 20,22%, Nilai Density 2,26 gr/cm3, Nilai MQ 724,79 kg/mm dan nilai Flow 2,00 mm dan nilai VIM 72,77%. Namun nilai VFWA pada variasi rendaman, 24 jam dan 48 jam diketahui tidak memenuhi spesifikasi campuran yaitu 5,90%, 7,59%. Berdasarkan data pengujian Marshall pada benda uji dengan variasi rendaman 24 jam dan 48 jam didapatkan penurunan nilai Stabilitas sebesar 24 kg. berdasarkan angka tersebut, dapat disimpulkan bahwa semakin lama waktu perendaman maka nilai Stabilitas yang diperoleh akan semakin menurun sebagai akibat dari sifat viscolastis aspal yang dipengaruhi oleh suhu.

PENINGKATAN EKONOMI MASYARAKAT MELALUI EDUKASI DIVERSIFIKASI ROSTER BETON BERBASIS KELOMPOK Jusmawandi, Jusmawandi; Imran, Imran
JCES (Journal of Character Education Society) Vol 6, No 3 (2023): Juli
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jces.v6i3.13089

Abstrak: Keterampilan masyarakat dalam memanfaatkan sumber daya alam menjadi pekerjaan rumah bagi Pemerintah Daerah. Keadaan ekonomi pasca pandemi Covid-19 menjadi perhatian utama dalam mengembalikan daya beli dan daya jual masyarakat. Berkaitan dengan bidang Teknik sipil, peluang dalam memanfaatkan kemampuan masyarakat adalah suatu kesempatan yang dapat dikembangkan. Melalui edukasi diversifikasi roster beton, sebagai upaya menguatkan pengetahuan dan keterampilan masyarakat Fakfak utara dalam meningkatkan ekonomi masyarakat. Bahan utama air dan pasir lokal tersedia di sekitar pemukiman sehingga keberlanjutan kegiatan dapat terus terjalan pasca kegiatan. Metode yang digunakan adalah latihan keterampilan, yang mana peserta terlibat langsung mempraktikkan cara pembuatan, penjualan hingga evaluasi hasil. Pelaksanan Kegiatan ini melibatkan Lurah, Ketua RT/RW dan Masyarakat setempat. Kegiatan ini akan menciptakan sumber pengetahuan baru, keterampilan, hingga usaha baru yang bermanfaat bagi masyarakat.Abstract: Community skills in utilizing natural resources is homework for the Regional Government. The economic situation after the Covid-19 pandemic is a major concern in restoring people's buying and selling power. In relation to the field of civil engineering, the opportunity to take advantage of community capabilities is an opportunity that can be developed. Through concrete roster diversification education, as an effort to strengthen the knowledge and skills of the North Fakfak community in improving the community's economy. The main ingredients of local water and sand are available around the settlement so that the sustainability of activities can continue after the activity. The method used is skills training, in which participants are directly involved in practicing how to manufacture, sell and evaluate results. The implementation of this activity involves the Lurah, Head of RT/RW and the local community. This activity will create a source of new knowledge, skills, and new businesses that benefit the community.

Pemanfaatan Abu Limbah Kayu sebagai Material Subtitusi Sebagian Semen pada Campuran Beton Imran, Imran; Attamimi, Aqilah; Fajri, Fajri
Portal: Jurnal Teknik Sipil Vol 15, No 2 (2023): October Edition
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v15i2.4643

The use of waste to meet the need for environmentally friendly construction materials using the recycling principle is mostly obtained from burning waste which are quite a lot of deposits available. Deposits of wood waste especially from sawmills in furniture industries, are just deposits of waste. However, wood waste ash can be used as a construction material in concrete mixture. This research aims to determine the compressive strength of concrete produced from using wood waste ash with a percentage 15%, 20% and 25% of cement. The research results showed that by substituting some cement using 15% of wood waste ash, the highest compressive strength of concrete was obtained at 8,08 MPa. The reduction in the compressive strength value of concrete is influenced by addition of percentage of wood waste ash, the greater the addition of wood waste ash in the concrete mixture, the smaller the resulting compressive strength value.

Pemanfaatan Abu Limbah Kayu sebagai Material Subtitusi Sebagian Semen pada Campuran Beton Imran, Imran; Attamimi, Aqilah; Fajri, Fajri
Portal: Jurnal Teknik Sipil Vol 15, No 2 (2023): October Edition
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v15i2.4643

The use of waste to meet the need for environmentally friendly construction materials using the recycling principle is mostly obtained from burning waste which are quite a lot of deposits available. Deposits of wood waste especially from sawmills in furniture industries, are just deposits of waste. However, wood waste ash can be used as a construction material in concrete mixture. This research aims to determine the compressive strength of concrete produced from using wood waste ash with a percentage 15%, 20% and 25% of cement. The research results showed that by substituting some cement using 15% of wood waste ash, the highest compressive strength of concrete was obtained at 8,08 MPa. The reduction in the compressive strength value of concrete is influenced by addition of percentage of wood waste ash, the greater the addition of wood waste ash in the concrete mixture, the smaller the resulting compressive strength value.

Pemanfaatan Abu Limbah Kayu sebagai Material Subtitusi Sebagian Semen pada Campuran Beton Imran, Imran; Attamimi, Aqilah; Fajri, Fajri
Portal: Jurnal Teknik Sipil Vol 15, No 2 (2023): October Edition
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v15i2.4643

The use of waste to meet the need for environmentally friendly construction materials using the recycling principle is mostly obtained from burning waste which are quite a lot of deposits available. Deposits of wood waste especially from sawmills in furniture industries, are just deposits of waste. However, wood waste ash can be used as a construction material in concrete mixture. This research aims to determine the compressive strength of concrete produced from using wood waste ash with a percentage 15%, 20% and 25% of cement. The research results showed that by substituting some cement using 15% of wood waste ash, the highest compressive strength of concrete was obtained at 8,08 MPa. The reduction in the compressive strength value of concrete is influenced by addition of percentage of wood waste ash, the greater the addition of wood waste ash in the concrete mixture, the smaller the resulting compressive strength value.

Pemanfaatan Limbah Cangkang Kerang dan Cangkang Telur pada Beton Geopolimer Imran, Imran; Attamimi, Aqilah
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 2 (2024): Desember: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i2.240

Alternative materials are almost always found in the surrounding nature, therefore innovation in the development of concrete mixture composition must continue to be improved. Natural local materials that are prioritized as a substitute for cement have geopolymer material content and contain silica (Si) and alumina (Al) elements. Clam shells are a new phenomenon in several sea sand quarries in Fakfak Regency. If the shell shell waste is not utilized, it will only create useless piles, as is the case with chicken egg shells, even though this waste has the potential to replace lime in making cement. This study aims to determine the characteristics of the material (clam shell waste, chicken egg shells and sand), and to determine the compressive strength produced in variations in the use of 50% LCK + 50% LCTA, 80% LCK + 20% LCTA and 100% LCTA. The results obtained in this study indicate that clam shells can be used as a component of geopolymer concrete because they have basic elements found in geopolymer materials in the form of SiO2, CaO, Al2O3, Al2O3, and MgO. Meanwhile, in chicken egg shells, the dominant element is only CaO. The dominant variation of shellfish shells using a combination of 80% LCK + 20% LCTA variations has the highest compressive strength value compared to other variations of 14.29 MPa at the age of 28 days, while the variation of 100% chicken egg shells only gets a compressive strength result of 2.20 MPa (age 28 days).

Pemanfaatan Limbah Cangkang Kerang dan Cangkang Telur pada Beton Geopolimer Imran, Imran; Attamimi, Aqilah
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 2 (2024): Desember: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i2.240

Alternative materials are almost always found in the surrounding nature, therefore innovation in the development of concrete mixture composition must continue to be improved. Natural local materials that are prioritized as a substitute for cement have geopolymer material content and contain silica (Si) and alumina (Al) elements. Clam shells are a new phenomenon in several sea sand quarries in Fakfak Regency. If the shell shell waste is not utilized, it will only create useless piles, as is the case with chicken egg shells, even though this waste has the potential to replace lime in making cement. This study aims to determine the characteristics of the material (clam shell waste, chicken egg shells and sand), and to determine the compressive strength produced in variations in the use of 50% LCK + 50% LCTA, 80% LCK + 20% LCTA and 100% LCTA. The results obtained in this study indicate that clam shells can be used as a component of geopolymer concrete because they have basic elements found in geopolymer materials in the form of SiO2, CaO, Al2O3, Al2O3, and MgO. Meanwhile, in chicken egg shells, the dominant element is only CaO. The dominant variation of shellfish shells using a combination of 80% LCK + 20% LCTA variations has the highest compressive strength value compared to other variations of 14.29 MPa at the age of 28 days, while the variation of 100% chicken egg shells only gets a compressive strength result of 2.20 MPa (age 28 days).

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