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Fadly Achmad
Universitas Negeri Gorontalo
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ANALISIS KAPASITAS DUKUNG FONDASI BERDASARKAN IN SITU TEST PADA REHABILITASI SENTRAL KOTA GORONTALO abdul Djou; Indriati Martha Patuti; Fadly Achmad
Composite Journal Vol. 2 No. 1 (2022): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v2i1.26

Abstract

Penelitian ini dilatarbelakangi oleh pembangunan Pasar Sentral Kota Gorontalo yang dibangun pada tahun 2000 dan telah dilakukan renovasi pada tahun 2020. Untuk merespon hal tersebut dilakukan penelitian analisis kapasitas dukung fondasi berdasarkan in situ test. Untuk keperluan tersebut perlu dilakukan pengujian kapasitas dukung tanah pada daerah lokasi pembangunan Pasar Sentral Kota Gorontalo tersebut. Kapasitas dukung tanah dan penurunan pada fondasi sangat berkaitan erat dengan beban struktur yang di atasnya. Pada lokasi penelitian ini dilakukan pengujian kapasitas dukung pada tanah berupa pengujian sondir dan pengujian N-SPT. Berdasarkan dari hasil uji N-SPT dilakukan analisis kapasitas dukung pada fondasi serta penurunan yang terjadi dan kemudian dianalisis dengan metode elemen hingga (Plaxis 2D). Hasil penelitian menunjukkan kapasitas dukung tanah pada titik BH.1 termasuk dalam kategori tanah dengan kapasitas dukung tanah lunak, sedangkan untuk kapasitas dukung tanah pada titik BH.2 termasuk dalam kategori kapasitas dukung tanah padat. Setiap lokasi memiliki nilai kapasitas dukung dan penurunan yang berbeda dikarenakan dari kedua lokasi BH memiliki tanah yang berbeda. Titik BH.2 memiliki nilai penurunan paling kecil yaitu sebesar 2,66 mm karena nilai kapasitas dukung tanahnya sangat besar. Semakin kecil kapasitas dukung pada tanah maka akan semakin besar penurunan yang akan terjadi pada bangunan. Semakin besar tekanan yang dipikul fondasi maka peluang untuk bangunan mengalami penurunan sangatlah besar.
PENGARUH LAMA RENDAMAN DAN PENUAAN ASPAL TERHADAP NILAI DURABILITAS CAMPURAN ASPAL COLD PAVING HOT MIX ASBUTON (CPHMA) Ardhy Prathama; Fadly Achmad; Frice L. Desei
Composite Journal Vol. 2 No. 1 (2022): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v2i1.39

Abstract

CPHMA adalah aspal siap pakai dan bisa dihampar dengan menggunakan suhu ruang. Kerusakan jalan pada permukaan sering terjadi karena proses penuaan aspal. Berdasarkan hal tersebut perlu dilakukanya penelitian mengenai keawetan campuran aspal (Durabilitas) dan pengaruh penuaan aspal guna mengetahui kekuatan dan masa pelayanan dari aspal CPHMA. Pembuatan benda uji pada penuaan aspal jangka pendek (Short-Term Oven Aging, (STOA) dilakukan dengan cara memasukkan benda uji dalam keadaan curah ke dalam oven selama 4 jam dengan suhu 135°C, sedangkan untuk penuaan jangka panjang (Long-Term Oven Aging, LTOA) dilakukan dengan cara memasukkan benda uji ke dalam oven dalam keadaan padat selama 2 hari untuk masa pelayanan 5 tahun dan 3 hari untuk masa pelayanan 10 tahun. Parameter keawetan campuran CPHMA dilihat dari Indeks Kekuatan Sisa (IKS), Indeks Durabilitas Pertama (IDP), dan Indeks Durabilitas Kedua (IDK). Berdasarkan hasil penelitian nilai kadar aspal CPHMA yang diperoleh melalui hasil ekstraksi adalah sebesar 7,05%. Nilai stabilitas untuk benda uji normal, LTOA 5 tahun, LTOA 10 tahun, dan STOA secara berturut-turut sebesar 634,61 kg, 504,58 kg, 451,21 kg, dan 1.261,45 kg. Nilai IKS pada benda uji normal sebesar 95,41%, pada benda uji LTOA 5 tahun dan 10 tahun secara berturut-turut sebesar 85,58% dan 84,95%. Nilai IKS pada benda uji STOA sebesar 96,15%. IDP dengan nilai kelandaian r pada rendaman 24 jam untuk benda uji normal, LTOA 5 tahun, LTOA 10 tahun dan STOA secara berturut-turut sebesar 1,49%, 1,66%, 1,81%, dan 0,16%. IDK benda uji normal, LTOA 5 tahun, LTOA 10 tahun dan STOA untuk nilai a secara berturut-turut sebesar 14,32%, 23,20%, 23,89%, dan 1,88%. Lama rendaman sangat berpengaruh terhadap nilai stabilitas yang diperoleh, semakin lama rendaman maka semakin rendah nilai stabilitas yang didapatkan. Hasil penelitian menunjukkan bahwa aspal CPHMA hanya diperuntukkan untuk kendaraan ringan hingga sedang.
UJI DURABILITAS DAN PENUAAN CAMPURAN BERASPAL LAPIS AUS (AC-WC) DENGAN BAHAN TAMBAH LIMBAH BOTOL PLASTIK TERHADAP VARIASI LAMA RENDAMAN Imran Kaaba; Fadly Achmad; Frice L Desei
FROPIL (Forum Profesional Teknik Sipil) Vol 10 No 1 (2022): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1582.956 KB) | DOI: 10.33019/fropil.v10i1.2852

Abstract

The addition of polymer plastics into asphalt can be done in a wet or dry way, the stability of the asphalt-concrete mixture mixed with PET is proven to increase the stability value. Durability and aging tests are used to determine the value of the Residual Strength Index (RSI), First Durability Index (FDI), and Second Durability Index (SDI). Specimens STOA made by placing the specimens in bulk in the oven for 4 hours at a temperature of 135°C, while for LTOA the specimens were in the oven in a solid state for 2 days at a temperature of 85°C, then soaked in waterbatch at a temperature of 60°C with variations in soaking time of 0.5, 24, 48 ​​, 72, and 96 hours. The parameters of the durability of the mixture are seen from RSI, FDI, and SDI. Based on the research results, the asphalt content value obtained through the results of previous studies was 6.75%. Stability values ​​for normal, STOA, and LTOA specimens were 1,178.97kg, 1,057.68kg, and 955.79kg, respectively. RSI values ​​on normal test objects, STOA, and LTOA were 95.88%, 93.58%, 91.88%, respectively. FDI with a slope value (r) for normal test objects, STOA and LTOA respectively 0.64%, 0.88%, and 0.98%. SDI of normal, STOA, and LTOA for value (a) were 7.35%, 10.76%, and 12.29%, respectively. KAO in the Marshall Test this time is a mixture of asphalt with plastic 1.2% wet process has the highest durability value of 95.88%. The longer the immersion, the lower the stability value obtained.
PENGARUH MUKA AIR TANAH TERHADAP PENURUNAN FONDASI TELAPAK BUJUR SANGKAR KOTA GORONTALO Ria Defriyanti Ali; Indriati Martha Patuti; Fadly Achmad
FROPIL (Forum Profesional Teknik Sipil) Vol 10 No 2 (2022): FROPIL (Forum Profesional Teknik Sipil)
Publisher : Jurusan Teknik Sipil Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/fropil.v10i2.3038

Abstract

Penelitian ini bertujuan untuk menganalisis penurunan fondasi telapak bujur sangkar di beberapa kecamatan di Kota Gorontalo dengan memperhitungkan kondisi muka air tanah. Kota Gorontalo merupakan daerah yang saat ini semakin berkembang di Provinsi Gorontalo. Dampak dari hal tersebut yaitu terjadi penambahan gedung. Lokasi penelitian yaitu di Kecamatan Dungingi, Kecamatan Kota Barat, dan Kecamatan Sipatana Kota Gorontalo. Data yang digunakan yaitu data primer berupa data tinggi muka air tanah dan sebagian data tanah di Kecamatan Kota Barat, Kecamatan Sipatana, dan Kecamatan Dungingi. Data yang digunakan berupa data primer yaitu data tinggi muka air tanah dan data karakteristik tanah. Analisis penurunan perangkat lunak GEO5. Nilai penurunan terendah terletak di Kecamatan Kota Barat nilai penurunan pada perhitungan terendah terletak di Kecamatan Kota Barat pada kondisi asli z>B sebesar 49,60 mm < 65 mm dan kondisi muka air rencana (dw > Df) sebesar 50,60 mm < 65 mm sedangkan yang tertinggi di Kecamatan Sipatana dengan kondisi asli sebesar (z<B) 641,00 > 65 mm dan kondisi (dw > Df) sebesar 631,50 mm > 65 mm.
Perilaku Birokrasi Pemerintahan dalam Pelayanan pada Badan Pendapatan Daerah Provinsi Sumatera Utara Fadly, Achmad; Sampurna, Ahmad; Kholil, Syukur
Intelektualita Vol 12 No 2 (2023): Jurnal Intelektualita: Keislaman, Sosial, dan Sains
Publisher : Wakil Rektor III Bidang Kemahasiswaan dan Kerjasama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/intelektualita.v12i2.18381

Abstract

Penelitian ini bertujuan untuk mengetahui bagaimana kepedulian, disiplin, dan tanggung jawab birokrat melayani masyarakat pada Badan Pendapatan Daerah Provinsi Sumatera Utara. Metode Penelitian yang digunakan adalah kualitatif. Hasil penelitian ini menunjukkan bahwa perilaku birokrasi dalam melayani Badan Pendapatan Daerah Provinsi Sumatera Utara masih perlu ditingkatkan agar masyarakat benar-benar mendapatkan pelayanan yang maksimal. Hal ini terlihat dari 1) kepedulian terhadap masyarakat masih kurang karena masih adanya tindakan-tindakan diskriminatif dan masyarakat akan lebih percaya terhadap kinerja aparatur apabila terdapat transparansi dan profesionalisme dalam pendataan; 2) disiplin pegawai juga kurang karena sering ditemukan datang kerja terlambat, pulang lebih awal dan dress code kadang tidak dipatuhi; dan 3) dalam hal tanggung jawab.
KARAKTERISTIK MARSHALL CAMPURAN ASPHALT CONCRETE BINDER COURSE (AC-BC) MENGGUNAKAN ASBUTON PRACAMPUR DAN AGREGAT GORONTALO Prasetiyo, Eko; Desei, Frice L.; Achmad, Fadly
Composite Journal Vol. 4 No. 1 (2024): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v4i1.42

Abstract

Indonesia memiliki cadangan aspal alam terbesar di dunia berupa aspal gunung, dikenal sebagai asbuton, yang terdapat di Pulau Buton, Provinsi Sulawesi Tenggara. Penelitian ini bertujuan untuk menganalisis karakteristik asbuton pracampur dan agregat Gorontalo serta karakteristik Marshall campuran AC-BC menggunakan kedua bahan tersebut. Metode yang digunakan adalah Marshall Test untuk memastikan campuran aspal panas memenuhi spesifikasi teknik Direktorat Jenderal Bina Marga. Aspal buton pracampur memiliki berat jenis 1,036, nilai penetrasi 54 mm, titik lembek 55,5°C, dan hasil ekstraksi menunjukkan 98% bitumen dan 2% mineral. Karakteristik agregat meliputi: Coarse Aggregate (CA) dengan berat jenis 2,56, nilai abrasi 24,84%, nilai angularitas 99,32/98,84%, absorpsi 1,27%, kelekatan agregat terhadap aspal >95%, dan material lolos saringan No.200 sebesar 0,6%. Medium Aggregate (MA) memiliki berat jenis 2,54, nilai abrasi 27,51%, nilai angularitas 99,32/98,84%, absorpsi 1,74%, kelekatan agregat terhadap aspal >95%, dan material lolos saringan No.200 sebesar 0,9%. Fine Aggregate (FA)/abu batu memiliki berat jenis 2,42, absorpsi 1,32%, sand equivalent 75,76%, dan material lolos saringan No.200 sebesar 9,92%. Pasir memiliki berat jenis 2,40, absorpsi 2,28%, dan material lolos saringan No.200 sebesar 2,03%. Semua nilai karakteristik aspal dan agregat memenuhi Spesifikasi Umum 2018 (Revisi 2). Nilai KAO AC-BC asbuton pracampur adalah 5,25%. Karakteristik Marshall menggunakan KAO 5,25% menunjukkan kepadatan 2,22 gr/cm³, VIM 4,95%, VMA 14,63%, VFA 66,19%, stabilitas 1.310,20 kg, flow 2,54 mm, dan Marshall Quotient 515,83 kg/mm. Disimpulkan bahwa campuran asbuton pracampur dan agregat Gorontalo memiliki stabilitas tinggi, cocok untuk jalan yang melayani lalu lintas berat dan padat.
ANALISIS PENGARUH TINGKAT PENDIDIKAN TERHADAP KOMPETENSI PEKERJA KONSTRUKSI BANGUNAN GEDUNG DI PROVINSI GORONTALO Amala, Ikdal; Utiarahman, Arfan; Achmad, Fadly
Composite Journal Vol. 4 No. 1 (2024): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v4i1.64

Abstract

Most of the construction workers in Indonesia are only having experience-based knowledge. They are skilled but are only elementary school graduates. Only a small proportion are able to reach the high school level. This is a fundamental problem for construction workers in Indonesia because many of the construction workers lack in engineering knowledge. This is a descriptive qualitative study. The findings indicate that: 1) Field identification, referring to the 2016 and 2013 SKKNI, reveals that both respondents are still lacking in the application of Occupational Health and Safety (K3). 2) The utility factor values ​​of the two respondents are both above 50%, where the utility factor of the blacksmith is 63.96% with a work productivity ratio of 18.39 kg/hour, while the of carbon steel worker 63.42% with productivity work of 2.73 m2/hour. 3) Both respondents occupy the lower level in the IQF, where blacksmith is categorized at level 1 and carbon steel workers is categorized at level 2. 4) The education level of construction workers does not affect their competence. Most of the knowledge related to the guild profession is obtained from work experience factors.
TINJAUAN KARAKTERISTIK MARSHALL CAMPURAN ASPHALT CONCTRATE WEARING COURSE (AC-WC) MENGGUNAKAN LIMBAH PLASTIK POLY ETHYLENE THEREPHTHALATE (PET) Alkam, Moh. Alkam; Desei, Frice L.; Achmad, Fadly
Composite Journal Vol. 3 No. 1 (2023): Composite Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/cj.v3i1.68

Abstract

Asphalt mixtures have several disadvantages, such as permanent deformation caused by too heavy pressure by truckloads and cracks caused by heat and humidity. In addition, plastic wastes that are increasingly piling up provide opportunities to be used in asphalt mixtures to improve the performance of asphalt mixtures. Concerning this issue, research about the substitution of plastic waste in asphalt mixtures is highly essential to be conducted. Moreover, this research was performed by substituting plastic waste into the asphalt and then mixing it into aggregate. The asphalt weight was taken from optimum asphalt content, while the mixture process was performed at the temperature of + 170°C by employing a high-speed mixing technique to keep the temperature stable during the mixing process. In comparison, the compaction was conducted at the temperature of + 150-160°C. At the same time, the test object was made as many as 25 samples to determine the optimum asphalt content and 25 samples for a mixture of asphalt with plastic waste. The type of plastic used in this research was Polyethylene Terephthalate (PET), with a percentage of plastic waste contents of 0,3%; 0,6%; 0,9%; 1,2%, and 1,5%. The research finding obtained that the highest stability value was 1.176,06 kg at 1,2% plastic content. Specifically, the stability values that met the interim specifications for asphalt plastic mixture were 981,02 kg; 1.152,78 kg; and 1.176,06 kg at plastic contents of 0,6%, 0,9%; and 1,2%, respectively. The highest flow was 3,62 mm at 1,5% plastic content, and the highest MQ was 331,26 kg/mm at 0,9% plastic content. At the same time, the addition of plastic content tended to increase VIM in plastic asphalt mixtures. The VIM values were 3,79%; 4,10%, 4,19%; 4,29%; and 4,33%, respectively. Likewise, the addition of plastic contents could increase VMA values in asphalt mixture where the VIM values were 19,08%; 19,34%, 19,42%; 19,51%; and 19,52%, consecutively. In contrast, adding plastic content to the asphalt mixture could decrease VFA and density values. In detail, the VFA values were 80,15%; 78,81%; 78,41%; 77,99%,, and 77,82% respectively, whilst the consecutive density values were 2,32 gr/cm; 2,32 gr/cm'; 2,31 gr/cm; 2,31 gr/cm'; and 2,31 gr/cm. Based on this analysis result, it could be inferred that 1,2% plastic content was suitable for use in asphalt mixtures with a stability value of 1.176,06 kg. This value increased by 38% from the stability value of conventional asphalt mixtures.
Studi Komunikasi: Aplikasi Qaulan Syakila dalam Membangun Masyarakat Islami Fadly, Achmad; Azhar
Jurnal Indonesia : Manajemen Informatika dan Komunikasi Vol. 5 No. 1 (2024): Januari
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) STMIK Indonesia Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jimik.v5i1.592

Abstract

This research aims to determine the application of qaulan syakila in building an Islamic society. This research uses a qualitative descriptive method as an effort to identify natural problems within the scope of Islamic society related to communication. This research is an analytical study which uses the literature review as a data source and as a review unit for studying Islamic society as an object. The findings of this research were analyzed through data reduction, data presentation, and data verification. In creating valid data, researchers used triangulation. The results of this research show that, the application of qaulan syakila as a communication concept in Islamic society is a strong means for building deep understanding and strengthening religious values. Messages delivered in heavy, thoughtful words have the potential to stimulate thought, inspire action, and create long-lasting impact. Apart from that, Qaulan syakila also plays a role in forming religious identity, spreading Islamic teachings wisely, and building social solidarity. By speaking with wisdom and truth, Islamic communities can prove that religious values can be realized in every aspect of life, creating a society that is just, developed, and loyal to the roots of their traditions and culture.
EFFECTIVENESS OF THE FLOOD EDUCATION MODEL IN GORONTALO CITY FADLY ACHMAD; HUSAIN SYAM; AHMAD RIFQI ASRIB
Jurnal Vokasi Keteknikan Vol 2 No 2 (2024): September 2024
Publisher : Pascasarjana Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jvkt.v2i2.6920

Abstract

In mitigating the flood disasters that often hit Gorontalo City, the participation of all parties is needed, starting from the local government, campus and community. Disaster education at the community level must be used as an initial lesson in disaster mitigation. One effort that can be made is by mapping land types in Gorontalo City which is then disseminated to technical agencies (PUPR) in order to reduce the risk of flooding in vulnerable areas. The research began with technical mapping of soil types in flood areas in Gorontalo City. Maps were analyzed using GIS applications. The resulting GIS map was then submitted to the Gorontalo City PUPR Service. The research results show that the dominant clay soil is spread across 6 sub-districts in Gorontalo City, namely Kota Selatan, Kota Tengah, Kota Utara, Kota Timur, Dungingi and Sipatana Districts. Some of them are in Kota Barat and Dumbo Raya sub-districts. Meanwhile, in Hulonthalangi District, sandy soil is more dominated; the educational model regarding technical maps of soil types received a positive response from the Gorontalo City PUPR Service.
Co-Authors abdul Djou Agung, Riski Dewa Ahmad Rifqi Asrib Akadira, Tora Aldo, Rivaldo Inaku Alkam, Moh. Alkam Amala, Ikdal Amir, Nur Hikmah Ardhy Prathama Arfan Utiarahman Arfin Sudirman Arip Mulyanto Attamimi, Mohamad Faldi Azhar Balu, Rasyid Desei, Frice Dolly Indra Eko Prasetiyo Frice L Desei Frice L. Desei, Frice L. Husain Syam Imran Kaaba Indriati Martha Patuti Kholil, Syukur lilis nurhayati Mukarramah, Rifqatul Nur Azizah Ria Defriyanti Ali Riau, Dwi Putranto Riskiyanto Maksud, Riskiyanto Sampurna, Ahmad Satma, Satma Sofiani, Anggi Yuliyanti Kadir