Teknik Sipil

Availability of raw water is one of the problems faced in the provision of clean water services in Indonesia. The purpose of this study was to determine differences in the quality of ordinary well water and drill water with physical parameters test. The number of samples in this study was 12 drill wells and 12 ordinary wells belonging to residents in the City of Parepare and the total were 12 villages. The parameters observed refer to the Indonesian Minister of Health Regulation Number 479 / Menkes / Per / IV / 2010 concerning Water Quality Requirements and Supervision which includes physical parameters such as turbidity. Data collection methods used in this study were cross sectional analysis in South Sulawesi Provincial Health Laboratory Makassar. Based on the results of the laboratory test for measuring water quality as measured by one of the physical parameters, namely turbidity, there is a difference in value between ordinary wells and boreholes. The turbidity values ​​measured in ordinary wells are 3 villages that do not meet the requirements of clean water quality, where all of the results are above the maximum set level of> 5 NTU, the villages is watang Soreang village, Lompoe village and Galung Maloang village while the turbidity value is measured in drill wells are the result that meets the requirements of clean water quality where the results do not exceed the maximum set level of 5 NTU.

Almost all rivers in Indonesia have abundant material resources. Can be an alternative as material that can be reached by the community in the area. But it has not been utilized optimally because the material has not known the nature, type and quality. This is the rationale for utilizing aggregates taken from the river Karawa Pinrang District to serve as a concrete forming material. The objectives of this research are to find out the compressive strength of concrete produced by using rough aggregate of natural stone (round) and rough aggregate of brown stone of Karawa River of Pinrang Regency at age 3, 7, 14, 21, and 28 days, and to know the tensile strength of concrete produced by natural aggregate, aggregate of natural stone (round) and crushed stone aggregate river of Karawa River of Pinrang Regency at age 28 day. Planning of mixed compositions using SNI 03-2834-2000 method, Development Of Environment Methode (DOE), and American Society Of Testing And Materials (ASTM). The test specimens made are cylinders of 150/300 mm. The results of concrete compressive strength research using crushed stone 31,139 Mpa, while compressive strength of concrete using natural stone 20,571 Mpa, so compressive strength of concrete by using crushed stone aggregate higher than using natural stone (round). For the tensile strength of concrete produced by using 3.586 Mpa rock, and the tensile strength of concrete produced by using natural stone 2,878 Mpa.

One of the factors in the occurrence of accidents in driving is because they do not understand the symbols of traffic signs, commit violations and do not pay attention to road markings. This study aims to determine the characteristics of truck transportation operators, the level of understanding of traffic signs, the influence of driving behavior, discipline and safety. The survey was conducted by distributing questionnaires to 200 respondents from September to November 2020 for later analysis using the SPSS program. The results of the study for the characteristics of respondents aged 21-35 years as many as 60%, who have a B1 SIM as much as 98%, while those who have had an accident 1-3 times are 5%. There are 56% of respondents who understand traffic sign symbols and 43% who do not. Driving behavior, discipline and knowledge of traffic signs can affect driving safety by 51% and the rest is explained by other variables.

Availability of raw water is one of the problems faced in the provision of clean water services in Indonesia. The purpose of this study was to determine differences in the quality of ordinary well water and drill water with physical parameters test. The number of samples in this study was 12 drill wells and 12 ordinary wells belonging to residents in the City of Parepare and the total were 12 villages. The parameters observed refer to the Indonesian Minister of Health Regulation Number 479 / Menkes / Per / IV / 2010 concerning Water Quality Requirements and Supervision which includes physical parameters such as turbidity. Data collection methods used in this study were cross sectional analysis in South Sulawesi Provincial Health Laboratory Makassar. Based on the results of the laboratory test for measuring water quality as measured by one of the physical parameters, namely turbidity, there is a difference in value between ordinary wells and boreholes. The turbidity values ​​measured...

The waste problem in Indonesia is an unfinished problem. The growing population increases the amount of waste originating from human activities, both organic and inorganic waste. Inorganic waste such as plastic waste is difficult to decompose naturally, so research is needed on the use of plastic waste to make environmentally friendly paving blocks. The aim of this research is to find out how much the value of compressive strength and the percentage of water absorption value in paving blocks. This study uses experimental data collection techniques or methods (testing/observation). In the test specimens of intact paving blocks and cubes the results of testing the types of DHPE and PP plastics have varying compressive strength and water absorption so that they can be continued in testing in this study. The highest compressive strength of the PP plastic type was 16.98 Mpa in the intact model and 23.30 MPa in the cube model, the lowest water absorption capacity was obtained by the PP plastic type of 0.38%.

Penelitian ini bertujuan  mengetahui apakah limbah serbuk industri marmer dapat digunakan sebagai pengganti sebagian semen (bahan tambah) untuk pencampuran beton pada struktur perkerasan kaku dan Mengkaji mutu beton dengan memanfaatkan industri limbah serbuk marmer sebagai pengganti sebagian semen (additive) ditinjau dari kuat tekan dan kuat tarik sisi beton. Hasil pengujian kuat tekan beton mulai umur 7, 14 dan 28 hari menunjukkan kecenderungan penurunan kekuatan seiring dengan penambahan serbuk limbah marmer. Semakin banyak komposisi limbah serbuk marmer yang ditambahkan berdasarkan analisis kekuatan beton menggambarkan kekuatan semakin menurun. Hasil percobaan pada umur 28 hari, untuk beton dengan campuran limbah serbuk marmer menunjukkan kuat tekan maksimum sebesar 28,025 Mpa.

The problem of plastic waste that needs to be handled and managed optimally can cause environmental damage. This study aims to test the compressive strength and water absorption value of paving blocks made of plastic which are designed using a mixed variation of V50-50 (50% sand, 50% plastic), V25-75 (25% sand, 75% plastic) and V0-100 (0% sand, 100% plastic) of the total proportion of the paving blocks mix. The method is carried out by melting PP (Polypropylene) mineral glass plastic, mixing with sand based on variations, printing according to the size of the paving block, and using as a test sample in the form of a dice. The average compressive strength test results show that the model with code V25-75 has a relatively higher compressive strength value than V50-50 and V0-100. The average compressive strength value of the sample with code V25-75 is 11.53 MPa, followed by code V50-50 of 9.63 MPa, and the lowest is coded V0-100 of 3.70 MPa. The compressive strength value is influenced by the optimal percentage between sand and plastic; plastic serves as a binder for sand in a mixture of paving blocks. The rate of water absorption value will continue to decrease along with the addition of plastic waste in the paving block mixture; V50-50 is 1.44, V25-75 is 0.88, and V0-100 is 0.16. This research is expected to be applied by the community to make paving block products to reduce the amount of plastic waste globally.

Porous concrete is an innovation and development solution for parking areas, yards and pedestrian areas, as a way to avoid standing water or even flooding. The purpose of this study was to determine the proportion of the optimum coarse aggregate mixture for porous concrete in terms of compressive strength and slump value. The research method used was experimental research conducted at the Laboratory of Structures and Materials, Muhammadiyah Parepare University. The results of this study can indicate that the optimum mixture proportions were obtained at aggregate variations of 0.5-1 cm. The compressive strength with an aggregate size of 0.5-1 cm is 6.13 MPa, an aggregate size of 1-2 cm is 5.47 MPa, while an aggregate size of 2-3 cm is 5.00 MPa. The slump value with an aggregate size of 0.5-1 cm is 196 mm, an aggregate size of 1-2 cm is 192 mm, while an aggregate size of 2-3 cm is 178 mm.

Faktor terjadinya kecelakaan dalam berkendara karena tidakpahaman terhadap simbol rambu lalu lintas, tidak disiplin dan tidak berperilaku baik pada saat berkendara. Penelitian ini bertujuan untuk mengetahui karakteristik operator transportasi truk, tingkat pemahaman terhadap rambu lalu lintas, pengaruh perilaku berkendara, kedisiplinan dan keselamatan. Survey dilakukan dengan membagikan angket kepada 200 orang responden mulai dari bulan September sampai November 2020 untuk kemudian dianalisis menggunakan program SPSS dengan model regresi logistik menggunakan Goodness of Fitness Test. Hasil penelitian untuk karakteristik yaitu responden dengan usia 21-35 tahun sebanyak 60%, yang memiliki SIM B1 sebanyak 98%, sedangkan yang pernah mengalami kecelakaan 1-3 kali sebanyak 5%. Adapun responden yang memahami simbol rambu lalu lintas sebesar 56% dan yang tidak sebesar 43%. Perilaku berkendara, kedisiplinan dan pengetahuan rambu lalu lintas mampu mempengaruhi keselamatan berkendara sebesar 5...

Limbah plastik yang mencemari lingkungan harus ditangani melalui pengelolaan dan pemanfaatan sampah. Metode yang digunakan adalah pendekatan pengembangan masyarakat berbasis aset kepada kelompok remaja dengan memberikan edukasi kepada masyarakat dalam bentuk ceramah tentang jenis dan teknik pengolahan sampah, kemudian dilanjutkan dengan penjelasan proses pengolahan limbah plastik menjadi paving block zero cement serta proporsi bahan yang digunakan pada rancangan campuran. Kegiatan ini melibatkan kelompok remaja pemerhati lingkungan yang berpusat di Kelurahan Lompoe, Kecamatan Bakukiki, Kota Parepare dengan menjelaskan teknik pengolahan paving block zero cement, dimulai dengan melakukan proses slice, pelelehan plastik yang dipadukan dengan pencampuran agregat halus sesuai dengan proposi yang telah ditentukan, kemudian dilakukan pencetakan untuk menghasilkan paving block dengan performa yang mendekati dengan paving block konvensional yang berbahan semen. Jenis limbah plastik yang digunakan adalah PET, PETE (polyethylene terephthalate). Kegiatan ini berkontribusi untuk memberikan pemahaman dan keterampilan kepada masyarakat terkait teknik pengolahan sampah dengan membuat paving block zero cement. Peserta dapat memahami pemanfaatan sampah plastik dan dapat menjadi salah satu profesi yang dapat ditekuni sebagai pembuat paving block zero cement.

Abstrak Penjadwalan pada Proyek Gedung Perpustakaan Politeknik Negeri Banyuwangi dilakukan dengan menggunakan metode bar chart dan kurva " S " , dan metode tersebut digunakan karena mudah dalam pembuatannya, mudah dimengerti dan dapat digunakan untuk memonitor pelaksanaan proyek. Jadwal waktu proyek tersebut adalah 144 hari. Saat ini proyek tersebut sudah selesai, tapi melebihi batas waktu penyelesaian proyek. Maka perlu dilakukan penelitian tentang penjadwalan proyek agar proyek tersebut tepat waktu dan ke depan menjadi acuan dalam pembuatan rencana anggaran biaya. Untuk mengembalikan jadwal proyek seperti semula maka diperlukan suatu evaluasi scedulling proyek agar proyek tepat waktu. Metode analisis tersebut adalah Metode Least Cost Analysis. Tujuan metode Least Cost Analysis adalah mendapatkan besarnya percepatan waktu, untuk memperoleh durasi yang sesuai dengan target, memperoleh biaya yang dihemat. Hasil yang diperoleh dengan menerapkan metode Least Cost Analysis adalah memperoleh percepatan waktu penjadwalan pelaksanaan pembangunan gedung Perpustakaan Politeknik Negeri Banyuwangi yaitu 16 hari atau 0.11 % dari jadwal waktu normal proyek yaitu 144 hari menjadi 128 hari, dan memperoleh penghematan biaya pada percepatan waktu penjadwalan pelaksanaan pembangunan gedung yaitu Rp 4.237.996,-atau 0.11 % dari biaya kontrak yang disetujui oleh kedua pihak yaitu Rp 3.788.803.879,- .