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PENGARUH CKS SEBAGAI PENGGANTI AGREGAT PADA KUAT TEKAN BETON Ahmad Zaki; Titis Yoga Pratama; Candra Agung Wibisono; Fadillawaty Saleh
Jurnal Riset Rekayasa Sipil Vol 6, No 2 (2023): Maret 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Concrete with oil palm shells (OPS) is an innovative alternative to normal concrete, which is increasingly expensive. In addition, reducing palm-based waste is the objective, one of which is waste that is no longer used in the form of palm shells. Therefore, OPS concrete can also be called green or environmentally friendly concrete. Thus, OPS concrete research becomes very important so that the effect of percentage (%) OPS on the compressive strength of concrete can be analyzed. A specimen in the form of a cylinder was used in this study. Such cylinders have dimensions with a diameter of 75 mm and a height of 150 mm. And the specimen consists of 5 variations of the specimen in the form of the percentage of OPS used, namely 0%, 10%, 20%, 30%, and 40% of the weight of the coarse aggregate (stone or gravel). Each specimen will be tested for compressive strength at concrete lifespans of 7, 14, and 28 days. In this study, the variation of oil palm shells with a percentage of 10% was the optimum value of compressive strength obtained. Compressive strength will decrease in concrete with a percentage above 10%. This happens because the increasing composition of OPS causes the concrete mixture's low workability so that the concrete's compressive strength value becomes lower.

PEMBEBANAN MODEL PELAT SKALA KECIL PERKERASAN KAKU (RIGID PAVEMENT) DI ATAS TANAH PASIR Bambang Setiawan; Yusep Muslih Purwana; Raden Harya Dananjaya H.I
Jurnal Riset Rekayasa Sipil Vol 6, No 2 (2023): Maret 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Road infrastructure issues need great attention, considering that this was a link and a cross-economy between one region and another. Damage to the pavement (pavement) would have fatal consequences for the development of an area and an increase in financial needs. Therefore, it was necessary to strengthen a solid road body so that it was able to strengthen the road and be comfortable for traffic loads to pass. Damage to the road body was a major concern in road maintenance efforts. This was due to several very complex problems in terms of the materials used, work implementation, traffic loads passing through the road body, and existing natural conditions. This research studies and analyses the behavior of dynamic-loaded rigid pavements. This load was a traffic load model, and the behavior was reviewed in a small-scale laboratory model. The expected result was to know the model’s behavior with and without rigid pavement reinforcement on both sandy and soft soils, namely in the form of analysis and the ability of the reinforcement to accept traffic loads. This research showed that the plate test model shows that multiple plate thickness supports plate stiffness. The cakar reinforcement plate affected the stiffness of the plate. The deflection value due to loading on the 3-layer plates (6.3 mm thick) was comparable to the 1-layer plate (2.1 mm) with cakar. FEM analysis can be performed to predict deflection due to loading in the center of the plate, and this value was very close to the results of the laboratory small-scale loading test. The CBR value used to calculate the deflection was closest to the real condition, namely the value before loading 0.2 kN and after loading 0.8 kN.

EFEKTIVITAS PEMBUATAN BETON DENGAN PENGGUNAAN AGREGAT KASAR KEDAK MOHAMAD ABDUL AZIZ HANAFI; ZENDY BIMA MAHARDANA; NUR ADDINFATKUNADA; MUHAMMAD RAFIQ SUSANTO; YOSSY MURDIANTO EKA SAPUTRA; HANIFATUS CINTYA; MIA SETIYO ASIH
Jurnal Riset Rekayasa Sipil Vol 6, No 2 (2023): Maret 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Kabupaten Kediri merupakan suatu wilayah pemerintahan di Provinsi Jawa Timur, yang saat ini sedang berkembang dalam pembangunan infrastruktur. Secara umum pembangunan infrastruktur di Kabupaten Kediri sering kali memanfaatkan fungsi beton dalam perkuatannya. Sungai Brantas merupakan sumber dari hasil tambang agregat halus yang digunakan sebagai penyusun beton, dimana kualitas dari pasir Sungai Brantas terbilang cukup baik. Agregat kasar yang sering digunakan di Kabupaten Kediri berasal dari daerah kedak. Berbeda dengan agregat halus, kualitas agregat kasar yang berasal dari daerah Kedak memiliki nilai keausan yang berbeda–beda. Pengujian yang dilakukan adalah melakukan uji kelayakan agregat, slump dan melakukan uji tekan kuat pada usia perawatan beton telah mencapai 28 hari. Metode yang dilakukan dalam penelitian adalah secara eksperimental dengan melakukan pembuatan beton sesuai metode SNI 03-2834-2000 dengan kondisi sampling keausan agregat kasar dibawah kriteria dan melakukan kombinasi bahan aditif master sure 1007 dan master glenium ace 8595. Jenis bahan aditif ini merupakan superplastizier pasta beton dan dipercaya mampu meningkatkan kualitas kuat tekan beton. Target kuat tekan beton dapat dicapai dengan upaya penggunaan kombinasi zat aditif master sure sebesar 0,35% dan master glenium sebesar 0,25% dari prosentase bahan pengikat. Hasil kuat tekan rata–rata 3 buah benda uji yang didapatkan adalah 15,52 MPa dari target rencana 15 MPa. Penggunaan zat aditif master sure dan master glenium pada pembuatan beton dengan nilai keausan agregat kasar melebihi standar, secara efektif mampu menjaga kualitas tekan beton yang kuat sesuai dengan target yang direncanakan. Sehingga kondisi agregat kasar yang tidak lolos pengujian keausan agregat tetap dapat digunakan sebagai bahan penyusun beton, tentunya dengan dilakukan kombinasi bahan aditif master sure dan master glenium.

GAMBARAN SIFAT FISIK DAN MEKANIK TANAH DI KECAMATAN KAUMAN KABUPATEN TULUNGAGUNG Niko Andika Erwanda; Agata Iwan Candra; Atsfiela Dzulkhan Qalby; Salman Alfaridh Pasya; Nadi Rheiza Fathurrohman; Prendy Eliya Mahendra; Muhammad Rosyid Abdul Rohman Fauzy
Jurnal Riset Rekayasa Sipil Vol 6, No 2 (2023): Maret 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Bencana tanah longsor di Kecamatan Kauman, Kabupaten Tulungagung, Jawa Timur mengakibatkan berbagai dampak buruk bagi kegiatan masyarakat dan lingkungan. Tujuan penelitian ini adalah untuk mengetahui klasifikasi tanah di daerah tersebut, metode yang digunakan adalah pengujian batas atterberg, analisa ayakan, pemadatan dan kuat geser. Sampel tanah diambil dari lokasi bekas longsoran, dan selanjutnya di uji di Laboratorium Teknik Sipil Universitas Kadiri. Hasil dari penelitian pada pengujian batas cair mendapatkan nilai 60,815%, pengujian batas plastis mendapatkan nilai sebesar 32,24%, pengujian analisa ayakan mendapatkan hasil golongan tanah berjenis SW, pengujian pemadatan tanah mendapatkan nilai kadar air optimum sebesar 34,93% dan berat volume kering maksimum sebesar 1,38 gr/cm3 dan pengujian kuat geser tanah mendapatkan nilai kohesi sebesar 2,532 Kpa dan nilai sudut geser sebesar 17,391 derajat, maka dapat disimpulkan bahwa tanah tersebut rawan bencana longsor, sehingga perlunya sebuah desain khusus pada lereng tersebut terkait kemiringan kelerengannya dan model dari dinding penahan untuk mengatasi longsor.

SIFAT FISIK DAN MEKANIK MORTAR DENGAN CAMPURAN LIMBAH ABU BATU BATUAN VULKANIK SEBAGAI PENGGANTI PASIR Evy Kusumaningrum; Sumarsono Sumarsono; Restu Faizah; Nurul Chotimah
Jurnal Riset Rekayasa Sipil Vol 6, No 2 (2023): Maret 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Kasus pencemaran lingkungan sebagian besar diakibatkan oleh kurang tepatnya penanganan limbah di beberapa daerah. Limbah merupakan hasil sisa dari suatu kegiatan produksi. Daerah Ponjong, Gunung Kidul, Yogyakarta sebagian besar masyarakat menekuni pekerjaan penggergajian batu alam. Limbah yang dihasilkan dari kegiatan penggergajian batu alam adalah abu batu dan pecahan batu. Limbah abu batu dan pecahan batu tersebut belum dimanfaatkan secara maksimal. Limbah yang menumpuk mengakibatkan tanah menjadi keras dan kesuburannya berkurang. Berdasarkan permasalahan tersebut maka pada penelitian ini mengusulkan tentang analisis sifat fisik dan mekanik beton dengan campuran abu batu sebagai pengganti agregat halus sebagai pengganti pasir pasir. Hasil penelitian ini diharapkan akan mengetahui sifat fisik dan mekanik beton dengan campuran abu batu sebagai pengganti pasir. Komposisi abu batu sebagai pengganti pasir yaitu 0%, 10%, 20%, 30%, 40% dan 50% dari berat pasir. Dari komposisi tersebut benda uji akan di uji densitas (density), kuat tekan (compression strength) pada umur beton 28 hari. Pengujian benda uji menggunakan Universal Testing Machine. Nilai densitas yang diperoleh pada benda uji mengalami penurunan nilai densitas. Semakin banyak komposisi abi batu sebagai pengganti pasir nilai densitasnya semakin kecil. Begitu juga dengan hasil uji kuat tekan mortar. Kuat tekan mortar dengan komposisi abu batu semakin banyak maka kuat tekan beton semakin menurun.

EVALUASI KEKUATAN SAMBUNGAN PADA BANGUNAN UTAMA MASJID AGUNG KRATON SURAKARTA Rima Wahyu Susilo; Ali Awaludin; Inggar Septhia Irawati
Jurnal Riset Rekayasa Sipil Vol 6, No 2 (2023): Maret 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Masjid Agung Kraton Surakarta is located in the city of Surakarta, Central Java Province and is a National Cultural Heritage building. The mosque was built during the reign of Pakubuwana II in 1745 AD with a total area of 19,180 m2. The main building of the mosque measures 34.2 meters x 33.5 meters. The mosque is supported by 4 main pillars (Soko Guru) and 12 additional pillars (Soko Rawa) made of wood. Indonesia is located at the confluence of three major world plates that cause the Pacific earthquake line and the Asian earthquake line. This causes the probability of large earthquake waves, and the frequency of occurrence is quite frequent in Indonesia. According to SNI 1726-2019, houses of worship have a risk category 4, where the building must maintain the function of the building structure during an earthquake. One of the regulations for evaluating a building is SNI 1726-2019. In this study, a tenant mortise joint with a maximum moment of 7.2 kNm and a rotation of 0.124 rad was modeled on the main structure of the Surakarta Grand Kraton Mosque with SAP2000 software. The loading combination is based on SNI 1726 2019 with earthquake loads obtained from the rsa cipta karya site. Based on the structural analysis that has been carried out, the results show that the maximum moment that occurs in the connection is 0.5373 kNm which is located at joint 89 elements 161 and obtained a maximum deformation of 6.442 mm.

ANALISIS BOBOT KOMPONEN WAKTU PADA PERJALANAN MENGGUNAKAN ANGKUTAN UMUM PERKOTAAN Risdiyanto Risdiyanto; Adelia Berliani Harnanto Putri; Nindyo Cahyo Kresnanto
Jurnal Riset Rekayasa Sipil Vol 6, No 2 (2023): Maret 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Traffic congestion is a serious problem in many cities in the world. Congestion will be reduced if most private vehicle users want to switch to using Urban Public Transport (AUP) when traveling. In order for AUP to be in demand, AUP services must be better. One of the most important services in attracting AUP passengers is the short travel time. The intended travel time is a combination of time to the stop, waiting time at the stop, time in the vehicle, transfer time, and travel time from the stop to the final destination. In order for travel time to be calculated, the weight of each component of travel time must be known. The purpose of this study was to determine the weight of each type of travel time component by taking the case of the Trans Jogja Bus (BTJ). The analysis was carried out using the Analytical Hierarchy Process (AHP) method. Data were obtained by conducting interviews / distributing questionnaires both in person and online, to 103 young respondents in urban Yogyakarta. Based on the results of the study, it was found that the components of travel time with weights from the largest in succession were waiting time at the bus stop, followed by time to the bus stop, transfer time, time from the bus stop to the final destination, and time in the vehicle. These results indicate that reducing waiting time at bus stops is a priority program that needs to be done to shorten the total travel time so that AUP becomes attractive.

ANALISIS MODEL 2 DIMENSI SUMUR RESAPAN SKALA KECIL LABORATORIUM DENGAN SOFTWARE GEOSTUDIO Bambang Setiawan; Galuh Crismaningwang; Yusep Muslih Purwana; Siti Nurlita Fitri; Raden Harya Danjanjaya Hesti Indra
Jurnal Riset Rekayasa Sipil Vol 7, No 1 (2023): September 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v7i1.67770

Sumur resapan dapat memberikan solusi akan kekurangan ketersediaan air tanah, hal ini terjadi karena air yang sengaja dimasukkan ke dalam tanah memberikan imbuhan suplai air, sehingga ketersediaan air tanah dapat menjadi lebih besar, dan dapat dimanfaatkan oleh manusia untuk kebutuhan hidup sehari hari. Proses ini adalah dengan membuat wadah yang porus, baik secara vertikal maupun horisontal, sebagai intake atau jalan air masuk, yang kemudian diteruskan secara meresap melalui media yang dibuat yaitu berupa batu kerikil, pasir dan ijuk, dalam wadah sumur buis beton yang berlubang, secara alami proses meresap ke sisi bawah dan samping sumur resapan akan terjadi sesuai dengan kemampuan tanahnya yang dapat diukur melalui permeabilitasnya. Tanah porus dengan permeabilitas besar akan lebih mudah meresap dan mengalirkan air tersebut ke dalam tanah. Penelitian ini mengkaji dan menganalisis model sumur resapan 2 D (dimensi) skala kecil laboratorium dengan model software dan analisis empirisnya. Pengamatan dilakukan pada model uji fisik skala kecil laboratorium, yang mana perilaku dan proses resapan air akan terlihat secara jelas dan sebaran arah air meresap juga akan nampak, proses selanjutnya adalah menganalisis perilaku tersebut dengan software GeoStudio dan analisis model empiris yang berlaku. Hasil dari analisis ini akan dapat memprediksi dan mendisain tipe dan dimensi ukuran sumur resapan, yaitu nilai analisis rembesan air secara manual adalah berdekatan yaitu sebesar 0,132 cm/detik dan 0,1688 cm/detik untuk hasil dengan aplikasi/software, sehingga penggunaan software tersebut dapat digunakan sebagai prediksi rembesan air dalam tanah.

PENGAPLIKASIAN BIM 5D UNTUK PEKERJAAN ARSITEKTUR PADA PROYEK GEDUNG IGD RSUD WARAS WIRIS BOYOLALI Canggih Gilang Pradana H. S; Ramadhan Widy Pratama; Rainy Shinta Nur Halimah
Jurnal Riset Rekayasa Sipil Vol 7, No 1 (2023): September 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v7i1.79199

Building Information Modelling (BIM) is a system for digitizing data processing that can help work in the construction industry run more effectively and efficiently. One type of BIM is 5D BIM. 5D BIM has the function of determining the take-off quantities and analyzing the costs of a building. An example of 5D BIM is Cubicost. Cubicost BIM is a BIM from the Glodon company that allows you to calculate work volumes in a detailed and precise way. In this research, the case study presented is an architectural work on the Waras Wiris Boyolali Hospital Emergency Building Construction Project. The architectural section was selected because architectural works play an important role in nominal terms, so the determination of volume greatly influences construction costs. This research uses Cubicost TAS and TRB software. Cubicost Software's volume results have also been validated so that they show a 99% correlation figure with volume obtained from conventional calculations. Based on the research carried out, the cost of using Cubicost software for architectural works in the Waras Wiris Boyolali Emergency Hospital Building Construction Project is Rp. 1.695.645.165,47. Using the Cubicost software also produces an efficiency of 11.550% on RAB from the consultant.

PENGARUH MATERIAL LOKAL KEDIRI TERHADAP TINGKAT DURABILITAS LAPIS STRUKTUR JALAN Achmad Khabib Kurnia; Andri Dwi Cahyono; Imam Mustofa; Evita Fitrianis Hidiyati; Ricco Dwi Yuliawan; Tantra Tegar Permady; Achmad Fikri Haikal; Dwi Nur Khayatin; Audy Yoga Pratama
Jurnal Riset Rekayasa Sipil Vol 7, No 1 (2023): September 2023
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v7i1.79196

Air conditioning or asphalt concrete is formed from coarse aggregate, fine aggregate, and asphalt. An aggregate is a collection of grains of crushed stone, gravel, sand, and other minerals in the form of both natural and artificial products. Coarse aggregate is sieve holder No. 8 (2.36 mm) retained aggregate while fine aggregate is sieve No. 8 (2.36 mm) passed aggregate. The problems that often occur in road pavement layers are poor durability and surfaces that are easy to wear out. This study aimed to find the maximum marshall value in the form of 60/70 penetration asphalt mixture stability. This study used an experimental method with a laston AC-BC test, the test was carried out with abrasion, gradation, specific gravity, and Marshal testing tests using marshal test equipment, following SNI 06-2489-1991, or AASHTO T245-90, or ASTM D1559-76. Using aggregates from the Kedak area, stability results of 3046, 4896, 3754 were obtained, which met the standards of the Bina Marga specifications standards. So that the aggregate from the Kedak area can be used as an alternative constituent material in road planning in the Kediri area because it is more efficient and has good durability.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Iva Yenis Septiariva

Contact Email ivayenis@staff.uns.ac.id

Phone -

Journal Mail Official jurnalsipil@ft.uns.ac.id

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Location Kota surakarta, Jawa tengah INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Iva Yenis Septiariva

Contact Email
ivayenis@staff.uns.ac.id

Phone
-

Journal Mail Official
jurnalsipil@ft.uns.ac.id

Editorial Address
-

Location
Kota surakarta,

Jawa tengah

INDONESIA