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All Journal REKAYASA Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia JMTS: Jurnal Mitra Teknik Sipil JPP (Jurnal Pendidikan dan Pembelajaran) Jurnal Pengabdian Kepada Masyarakat Patikala
Blima Oktaviastuti, Blima
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Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Physics Social Sciences

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The Role of Textbooks to Support Scientific Approach Learning Implementation on Vocational High School (Book Review of Mechanics and Machine Elements for SMK Class X) Nurmalasari, Riana; Sutadji, Eddy; Oktaviastuti, Blima; Sunardi, Sunardi
JPP (Jurnal Pendidikan dan Pembelajaran) Vol 27, No 1 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um047v27i12020p022

Abstract

Abstract: Textbooks are one of the supporting learning processes and must be prepared according to the applicable curriculum, namely the 2013 curriculum. In fact, not all books used in the learning process currently have quality content and relevant content suitability. Moreover, not all textbooks have been prepared using a scientific approach. One of the textbooks that need to be reviewed is the Mechanics and Machine Elements for Class X on Vocational High Schools. There is a need for a study related to the suitability of the contents of the books according to KI and KD and adjust to aspects of the appropriateness of content, language, presentation, and graphics of textbooks. The preparation of the book must also be adjusted to the scientific approach in accordance with the 2013’s curriculum.
The Role and Teacher's Understanding in Implementing Curriculum on Vocational High School Nurmalasari, Riana; Oktaviastuti, Blima; Nafiah, Annisau
JPP (Jurnal Pendidikan dan Pembelajaran) Vol 26, No 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um047v26i22019p057

Abstract

This study aims to describe the teacher's understanding and how teacher’s role in the implementation of the 2013 curriculum. This research uses a descriptive qualitative research design with case study. Research data supported by research tools in the form of audio-visual and field notes. The informants are the headmaster, the vice minister of curriculum, teachers, and students who carry out learning using the 2013 curriculum at SMK 1 Kertosono. Based on the results of the analysis, it is known that the understanding of teachers is not so fully understood the 2013 curriculum as a whole. The role of teacher for implementation of the 2013 curriculum conducted by teachers including: (1) Planning, teachers in making learning plans based on the results of teacher group discussions conducted between teacher peers and the internet; (2) Implementation, the implementation of learning conducted by the teacher includes three activities, namely the introduction, main, and closing activities; and (3) Assessments, assessments made by teachers are authentic assessments, which include; assessment of attitudes, knowledge and skills.
Edukasi Pengenalan Public Service Obligation Dan Tarif Kereta Api Pada Mahasiswa Teknik Sipil Universitas Tribhuwana Tunggadewi: Edukasi Pengenalan Public Service Obligation Dan Tarif Kereta Api Pada Mahasiswa Teknik Sipil Universitas Tribhuwana Tunggadewi Leliana, Arinda; Oktaviastuti, Blima; Fitria Apriliani, Nurul; Puspitasari, Armyta
Jurnal Pengabdian Kepada Masyarakat Patikala Vol. 3 No. 2 (2023): Jurnal PkM PATIKALA
Publisher : Education and Talent Development Center of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/patikala.v3i2.902

Abstract

Kurikulum pendidikan di Jurusan Teknik Sipil Universitas Tribhuwana Tunggadewi Malang (UNITRI) salah satunya mempelajari tentang bidang kompetensi Transportasi. Namun, Transportasi yang dipelajari mayoritas hanya transportasi darat atau biasa disebut dengan angkutan jalan raya. Ilmu transportasi tentang perkeretaapian masih belum banyak dipelajari. Dengan adanya kurikulum merdeka belajar kampus merdeka maka mahasiswa dapat mempelajari ilmu apa saja yang ingin dipelajari. Mata kuliah ekonomi transportasi di Jurusan Teknik Sipil UNITRI belum banyak mempelajari tentang bidang transportasi kereta api. Berkembangnya ilmu pengetahuan dan teknologi tentang kereta api maka perlu adanya pengenalan terkait dengan kereta api yang kaitan nya dengan ekonomi transportasi yaitu subsidi dari pemerintah Public Service Obligation (PSO) serta kaitannya dengan tarif KA. Pengabdian masyarakat ini difokuskan mengenai penanaman pengetahuan mengenai subsidi atau PSO serta perhitungan tarif KA. Tujuannya adalah pengenalan dan memberikan edukasi terkait PSO dan tarif KA. Manfaatnya dapat menambah ilmu pengetahuan serta wawasan terkait dengan subsidi dan tarif angkutan kepada para mahasiswa. Pelaksanaan PKM ini dibagi beberapa tahap yaitu persiapan meliputi tahap persiapan, tahap edukasi/pelaksanaan. Kegiatan pengabdian ini diikuti oleh 100 peserta yaitu mahasiswa Jurusan Teknik Sipil Universitas Tribhuwana Tunggadewi Malang. Hasil evaluasi dari form angket yang telah dibagikan menunjukan bahwa 56% peserta setuju jika materi yang disajikan dapat menambah wawasan dan ilmu pengetahuan teknologi dalam bidang ekonomi transportasi yaitu subsidi dan tarif KA. Sisanya 44% sangat setuju dengan materi yang disajikan dapat menambah wawasan para peserta. Dampak yang didapatkan setelah mengikuti sosialisasi memberikan dampak besar terhadap para peserta terutama dalam hal menambah pengetahuan sebesar 61%. Dan sisanya 33% peserta menyatakan sangat setuju jika sosialisasi yang telah diberikan memberikan dampak besar kepada para peserta tentang ekonomi transportasi KA yaitu subsidi dan tarif KA.
Kuat Tekan Beton Geopolymer Berbahan Dasar Abu Terbang (Fly Ash) Sebagai Alternatif Perkerasan Kaku di Daerah Pesisir Oktaviastuti, Blima; Pandulu, Galih Damar; Lusyana, Evy
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 6, No 1 (2021): EDISI MARET 2021
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v6i1.2271

Abstract

Konstruksi jalan di daerah pesisir umunya masih menggunakan perkerasan lentur. Perkerasan ini seringkali mengalami kerusakan akibat adanya luapan banjir air laut pasang (rob). Genangan rob terbukti dapat mengurangi daya ikat antara aspal dengan agregat, sehingga terjadi pengelupasan aspal yang dapat memperpendek umur jalan. Oleh karenanya perkerasan kaku dapat dijadikan solusi untuk masalah ini. Akan tetapi penggunaan semen dalam perkerasan kaku dianggap kurang ramah lingkungan karena melepaskan banyak karbon dioksida (CO2) dalam produksinya. Oleh karena itu beton geopolimer berbahan dasar abu terbang bisa dijadikan salah satu solusi yang ramah lingkungan karena bahan yang digunakan berasal dari limbah pembakaran batubara. Pada penelitian ini dilakukan uji kuat tekan terhadap 9 benda uji silinder berukuran tinggi 30cm dan diameter 15cm dengan usia beton 28 hari dalam perendaman air laut dan air pdam. Dalam pembuatan benda uji menggunakan perbandingan agregat dengan binder 75:25, 70:30 dan 65:45, yang masing-masing terdiri dari tiga benda uji setiap perbadingannya. Perbandingan aktivator yang digunakan adalah 1:2, 3:2 dan 5:2. Aktivator yang digunakan yaitu Sodium hidroksida (NaOH) dan Sodium silikat (Na2SiO3). Kuat tekan direncanakan sebesar 20 MPa. Berdasarkan penelitian didapatkan hasil 4 benda uji yang memenuhi kuat tekan rencana dengan kuat tekan terbesar ada pada perbandingan aktivator 5:2 yang mencapai 27.275MPa. Beton geopolimer dapat dijadikan alternatif perkerasan kaku pada daerah pesisir pantai, karena tidak diperoleh perbedaan yang signifikan dari hasil perbandingan perendaman antara air laut dan air PDAM.ABSTRACTRoad construction in coastal areas is still using bending pavement. This pavement is often damaged by flooding of high tides (rob). Rob puddles are proven to reduce the bonding power between asphalt and aggregate, resulting in asphalt peeling that can shorten the road's life. Therefore rigid pavement can be used as a solution to this problem. However, cement in the rigid pavement is considered less environmentally friendly because it releases a lot of carbon dioxide (CO2) in its production. Therefore, geopolymer concrete made from flying ash can be environmentally friendly because the materials used come from coal-burning waste. This study conducted a substantial press test against nine cylindrical test objects measuring 30cm high and 15cm in diameter with a concrete age of 28 days in seawater immersion and tap water. In the manufacture of test objects using aggregate comparisons with binders 75:25, 70:30, and 65:45, each consists of three test objects per body. The comparison of activators used is 1:2, 3:2, and 5:2. The activators used are Sodium hydroxide (NaOH) and Sodium silicate (Na2SiO3). The planned compressive strength of 20 MPa. Based on the research obtained, the results of the 4 test objects that meet the strong press plan with the most significant compressive force is in the ratio of activators 5:2, which reaches 27.275MPa. Geopolymer concrete can be used as an alternative to the rigid pavement in coastal areas because there is no significant difference from the comparison of immersion between seawater and PDAM water
Project Delays and Project Property Investment Decisions in Apartments: A Literature Review Oktaviastuti, Blima; Leliana, Arinda; Arifin, Isnani
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 8, No 2 (2023): EDISI SEPTEMBER 2023
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v8i2.5289

Abstract

Apartment housing has become an option in big city areas, especially as land is becoming increasingly scarce and expensive. Apartment investment is an investor's choice at a time when demand is increasing every year along with the growth of the urban economy. Apartment construction projects begin construction based on appropriate planning to produce buildings of the right quality, cost, and time by minimizing one aspect of risk, namely the project delay factor. This article aims to present studies related to construction project delay factors; apartment buildings; investment analysis; and the impact of project delays on investment interest. The results show that construction delays have an impact on construction costs and time and further research is needed on the effects on investors' investment interest.ABSTRAKHunian apartemen menjadi salah satu pilihan di Kawasan kota besar terlebih lahan yang semakin berkurang dan mahal. Investasi apartemen menjadi pilihan investor di kala kebutuhan yang semakin tinggi tiap tahunnya seiring bertumbuhnya perekonomian di perkotaan. Proyek konstruksi apartemen memulai pembangunan yang didasarkan pada perencanaan tepat guna untuk menghasilkan bangunan yang tepat mutu, biaya dan waktu dengan meminimalkan salah satu aspek risiko yaitu faktor keterlambatan proyek. Artikel ini bertujuan memaparkan kajian terkait: faktor keterlambatan proyek konstruksi; bangunan apartemen; analisa investasi; dampak keterlambatan proyek terhadap minat investasi. Hasil didapatkan bahwa keterlambatan konstruksi berdampak terhadap biaya dan waktu konstruksi dan diperlukan penelitian lebih lanjut efek terhadap minat investasi investor.
INVESTIGASI PEMANFAATAN LIMBAH BATU DAN SERBUK MARMER SEBAGAI SUBSTITUSI AGREGAT PADA PERKERASAN KAKU M. Sa'dillah; Arifianto, Andy Kristafi; Oktaviastuti, Blima; Jemadun, Rosita Oktavia
JMTS: Jurnal Mitra Teknik Sipil Volume 8, Nomor 3, Agustus 2025
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v8i3.33671

Abstract

Natural resources such as fine and coarse aggregates eventually deplete and are irreplaceable. Therefore, the materials needed to replace aggregates in rigid pavements with marble and stone powder are different. The purpose of this study was to determine the compressive strength and flexural strength of concrete at the ages of seven and twenty-eight days. This study used a quantitative experimental research design. The test objects were reinforced concrete slabs measuring 50 x 12 x 120 with variations of 0%, 15%, 25%, and 35%, as well as cylinders measuring 15 cm and 30 cm. The most ideal value for the compressive strength of used marble powder over a period of 28 days is 15%; the most ideal value for used marble stone is 25%; and only a variation of 0% meets the intended parameters for the combination of used stone and powder. The results of the compressive strength test conducted on marble powder waste concrete, marble stone waste, and a combination of stone waste and powder over a seven-day period did not meet the planned requirements. The flexural strength tests on ordinary concrete yielded deflections of 25% (4.26), 0% (3.93), and 25% (4.71), respectively, using marble powder waste, marble stone, and a combination of stone and powder with maximum load. Abstrak Agregat halus dan kasar merupakan contoh sumber daya alam yang pada akhirnya akan habis dan tidak dapat digantikan. Oleh karena itu, material yang dibutuhkan untuk mengganti agregat pada perkerasan kaku dengan bubuk marmer dan batu berbeda. Tujuan dari penelitian ini adalah untuk mengetahui kuat tekan dan kuat lentur beton pada umur tujuh dan dua puluh delapan hari. Penelitian ini menggunakan desain penelitian eksperimental yang bersifat kuantitatif. Benda uji berupa pelat beton bertulang berukuran 50 x 12 x 120 dengan variasi 0%, 15%, 25%, dan 35%, serta silinder berukuran 15 cm dan 30 cm. Nilai paling ideal untuk kuat tekan bubuk marmer bekas selama periode 28 hari adalah 15%; nilai paling ideal untuk batu marmer bekas adalah 25%; dan hanya variasi 0% yang memenuhi parameter yang dimaksudkan untuk kombinasi batu bekas dan bubuk. Hasil pengujian kuat tekan beton limbah serbuk marmer, limbah batu marmer, dan campuran limbah batu dan serbuk selama tujuh hari tidak memenuhi persyaratan yang direncanakan. Dengan menggunakan limbah serbuk marmer, batu marmer, dan kombinasi batu dan serbuk dengan beban maksimum, diperoleh hasil pengujian kuat lentur pada beton biasa, dengan lendutan masing-masing bervariasi sebesar 25% (4,26), 0% (3,93), dan 25% (4,71).
Implementation of Technical Aspects of Strengthening Existing Structural Columns Using Jacketing Fiber Reinforced Polymer (FRP) Carina, Annisa'; Oktaviastuti, Blima; Cahyono, Heru Setiyo
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 10, No 2 (2025): EDISI SEPTEMBER 2025
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v10i2.7047

Abstract

Columns are vertical structural elements in construction planning and implementation, which play a crucial role in distributing loads from the superstructure to the foundation. Therefore, columns must meet the strength and safety standards stipulated in technical regulations such as SNI 2847:2019 and ACI 440.2R-17. However, in reality, structural columns are often found to have strengths that are less than required. The need to strengthen existing structural columns generally arises due to several reasons, including revisions to building functions that cause additional loads, aging buildings that begin to exhibit a decrease in structural capacity, or discrepancies between actual conditions and the initial planning design. This research was conducted on eight columns of the first floor structure of the JIIPE Tower construction project. The columns that were the object of the research are part of the main structure of a multi-story building planned as the JIIPE Tower building. Based on the results of calculations using SAP2000 for longitudinal and transverse reinforcement against the column force and geometry requirements, it is evident that the columns meet the requirements for the shortest side and the requirements for the cross-sectional dimension ratio; however, they do not meet the Axial Force Requirements. The study results show that the proper use of FRP can be an efficient and effective reinforcement method in increasing column capacity.
Effect of Waste Marble Stone Fractions in Porous Asphalt Mixtures for Quality Improvement Sa'dillah, M; Oktaviastuti, Blima; Malo, Yoskario Darman
Rekayasa Vol 18, No 3: Desember, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i3.29329

Abstract

Improving road transportation accessibility is essential for enhancing local social and economic activity in a country. One way to maintain the accessibility of the road network and ensure that users feel safe and comfortable is to maintain an adequate pavement surface layer throughout the duration of the network. Prolonged rain becomes one of the problems of paving the road surface. aims to achieve the following: (1) to determine the Marshall strength of the optimum asphalt content (OAC) value in the porous asphalt mixture; and (2) to determine the effect of the use of marble stone fraction waste on the characteristics of porous asphalt mixtures. Research method uses experimental research in the laboratory. Research will be conducted using the Australian Asphalt Pavement Association (AAPA) 2004 approach method. Research was conducted with Pen 60/70 asphalt content of 4%, 4.5%, 5%, 5.5%, and 6% to find the optimum asphalt content value, then it will be added with a ratio of 0%, 15%, 25%, and 35% marble fraction waste material to the total OAC weight. Results of the analysis of the Marshall characteristics of the porous asphalt mixture with a variation of 25% marble content have met the specifications on the grounds that all parameters have met the requirements of the Australian Asphalt Pavement Association (AAPA 2004) with a VIM value at 25% content of 18.61%, for a VMA value of 50.60%, while for a stability value of 508 kg and for a flow value obtained of 2.57 mm while for an MQ value of 262.46 kg/mm.
Co-Authors Annisa' Carina Annisau Nafiah Arifianto, Andy Kristafi Arifin, Isnani Armyta Puspitasari Cahyono, Heru Setiyo Eddy Sutadji Fitria Apriliani, Nurul Galih Damar Pandulu, Galih Damar Jemadun, Rosita Oktavia Leliana, Arinda Lusyana, Evy M Sa’dillah Malo, Yoskario Darman Riana Nurmalasari Sa'dillah, M Sunardi Sunardi