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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL JURNAL KARYA TEKNIK SIPIL
muhrozi muhrozi, muhrozi
Departemen Teknik Sipil FT. UNDIP JL. Prof. H. Soedarto SH., Tembalang, Semarang 50275
Civil Engineering, Building, Construction & Architecture

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Stabilisasi Tanah Lempung dengan Mengunakan Larutan Asam Sulfat (H2so4) pada Tanah Dasar di Daerah Godong - Purwodadi Km 50 Kabupaten Grogogan Prabandiyani RW, Sri; Hardiyati, Siti; Muhrozi, Muhrozi; Pardoyo, Bambang
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 1, JULI 2015
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (892.246 KB) | DOI: 10.14710/mkts.v21i1.11227

Abstract

An expansive clay soil material that is composed of various minerals include kaolinite, montmorillonite and illite group. Mineral montmorilinite have the sensitivity to the effects of the water is very easy to expand and contract. High and low levels of development (swelling) and shrinkage (shrinkage) expansive clay is determined by the high and low content of montmorillonite on expansive clay granules. Because of these properties are very high content of montmorillonite often cause problems in the building. This study uses a solution of sulfuric acid (H2SO4) as a stabilizer through the compaction process Modified Proctor on OMC Proctor standard by the number of collisions each is 10 x, 25 x and 56 x, and the amount of additional water in cc on dry ground, with variations in increments of 100%, water by 90%:10% H2SO4, water by 80%: 20% H2SO4 and water by 90%: 30% H2SO4. This research was conducted testing-testing in the laboratory include: physical properties, mechanical properties. swelling pressure, swelling potential and CBR with curing and no curing. Results of the test-the test, can increase the value of physical and mechanical properties, while pergujian against swelling pressure and swelling potential is not significantly increased.
Stabilisasi Tanah Ekspansive dengan Menggunakan Tanah Putih untuk Tanah Dasar di Daerah Godong Kabupaten Grobogan Jawa Tengah Wardani, Sri Prabandiyani Retno; Muhrozi, Muhrozi; Setiaji, Andi Retno Ari; Riwu, Danny R
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (606.555 KB) | DOI: 10.14710/mkts.v24i1.16275

Abstract

Problematic soils such as expansive soils are common in Indonesia. There are several methods to overcome the damage caused by expansive soil, such as by mixing the soil with additives. Some researchers have conducted research by mixing additives into expansive soil (cement, lime, fly ash etc), which work to increase soil strength and reduce swelling. Considering that the people in Buraen Village of Kabupaten Kupang use white soil as a substitute for cement, where the white soil has chemical constituents almost the same as those owned by cement, and contain CaO as it has lime, it is necessary to do research to determine the effect of white soil on physical and mechanical properties of expansive soil, so it can be used as an additive. This research was conducted at Soil Mechanics Laboratory, Civil Engineering Department, Engineering Faculty, Diponegoro University, Semarang.with soil sample from Godong, Central Java and white soil in Buraen Village of Kupang Regency, which purpose to find out the change of physical and mechanical properties of expansive soil that have been given some variation of mixture of white soil  to the dry weight of the soil, with optimum moisture content from standard Proctor test results. The results of this study indicate that white soil can be used as an additive and the use of OMC for mixing is the OMC of expansive soil.
PERENCANAAN BOX CULVERT DAN PINTU AIR TAMBAHAN PADA PINTU AIR MANGGARAI, JAKARTA SELATAN Burhani, Yasser; Januwisesa, Yeckastoro; Prabandiyani, Sri; Muhrozi, Muhrozi
Jurnal Karya Teknik Sipil Volume 6 ,Nomor 1, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (556.814 KB)

Abstract

Banjir merupakan permasalahan yang sering dihadapi oleh masyarakat Jakarta. Lahan-lahan yang telah banyak berubah fungsi menyebabkan penyerapan air berkurang. Banjir yang sering terjadi di Pintu Air Manggarai, dikarenakan kondisi saluran tersebut sudah tidak memungkinkan menampung air hujan dengan intensitas tinggi. Dengan kondisi tersebut, pemerintah kota Jakarta mengatasi masalah banjir yang terjadi di Jakarta dengan merealisasikan program normalisasi Sungai Ciliwung berupa penambahan pintu air Manggarai. Perencanaan Pintu Air Tambahan pada pintu air Manggarai menggunakan data curah hujan 10 tahun terakhir, data tanah, dan peta topografi Kota Jakarta. Perhitungan debit banjir rencana dengan periode ulang 25 tahun (Q25) sebesar 495 m3/det. Berdasarkan perhitungan debit baru untuk saluran tambahan dikurangi dengan debit banjir saluran lama didapatkan hasil 195 m3/det. Saluran Tambahan pada pintu air Manggarai menggunakan saluran tipe box culvert. Perhitungan struktur box culvert ini menggunakan software SAP 2000 untuk menentukan ukuran tulangan yang digunakan. Dari hasil perhitungan didapatkan dimensi box culvert tinggi 10 m, lebar 8,6 m dan tinggi jagaan 1 m. Pintu air dengan tinggi pintu 7 m dan lebar pintu 7 m. Pembangunan konstruksi Pintu Air Tambahan Manggarai memerlukan waktu 46 minggu dengan total anggaran sebesar Rp 28.182.870.000 (dua puluh delapan milyar seratus delapan puluh dua juta delapan ratus tujuh puluh ribu rupiah).
EVALUASI JALUR PEDESTRIAN DI WILAYAH KAMPUS UNDIP Sofian, Devsa Rievky; Mustofa, Khoirul; Hermawan, Ferry; Muhrozi, Muhrozi
Jurnal Karya Teknik Sipil Volume 7, Nomor 4, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRAKMenjadi salah satu universitas terbaik di Indonesia membuat Universitas Diponegoro perlu terus mengembangkan fasilitas kampus. Salah satu poin penting fasilitas kampus adalah jalur pedestrian karena banyaknya pergerakan internal kampus oleh civitas akademika. Jalur pedestrian harus baik dalam kondisi teknis dan bisa memberikan rasa aman dan nyaman bagi pejalan kaki. Penelitian ini diambil untuk menilai kondisi jalur pedestrian di kawasan kampus secara teknis dan non-teknis. Observasi dilaksanakan di lingkungan kampus Undip dengan sampel jalan di dalam dan luar kampus. Data yang didapatkan kemudian dianalisa menggunakan analisa deskriptif kuantitatif. Hasil yang didapatkan yaitu kondisi jalur pedestrian di kawasan kampus Undip secara teknis masih sedikit yang sesuai standar yang berlaku. Walkability pada jalur pedestrian masih bisa ditingkatkan kualitasnya terutama pada aspek kenyamanan dan aspek aksesibilitas.
Co-Authors Bambang Pardoyo Burhani, Yasser Ferry Hermawan Januwisesa, Yeckastoro M Zaki Mustofa, Khoirul Riwu, Danny R Setiaji, Andi Retno Ari Siti Hardiyati Sofian, Devsa Rievky SPR, Wardani Sri Prabandiyani Sri Prabandiyani Retno Wardani Sri Prabandiyani RW, Sri