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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA
Sulistiawati, Baiq Heny
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Humanities Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Transportation Other

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EFEKTIFITAS PENGGUNAAN BAHAN STABILISATOR BERBASIS POZOLAN PADA TANAH BERBUTIR HALUS DITINJAU DARI SIFAT FISIK DAN MEKANIS TANAH Lestari, Nor Puji; Nikmah, Anisatun; Harprastanti, Primasiwi; Sulistiawati, Baiq Heny
Bangun Rekaprima: Majalah Ilmiah Pengembangan Rekayasa, Sosial dan Humaniora Vol 8, No 1, April (2022): Bangun Rekaprima
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (28.714 KB) | DOI: 10.32497/bangunrekaprima.v8i1, April.3526

Abstract

Kerusakan bangunan struktur maupun bangunan geoteknik lainnya banyak disebabkan oleh kondisi tanah dasar dimana konstruksi tersebut berdiri. Tanah yang baik akan berfungsi untuk menopang konstruksi diatasnya. Salah satu faktor yang menentukan daya dukung tanah adalah parameter kondisi tanah. Tidak semua jenis tanah memiliki karakteristik yang baik sehingga perlu usaha perbaikan tanah. Salah satu upaya untuk memperbaiki sifat tanah lempung tersebut dilakukan dengan stabilisasi tanah. Banyak bahan stabilisasi yang telah digunakan, antara lain semen dan bahan pozolan. Oleh sebab itu pada penelitian ini akan di tinjau efektifitas bahan berbasis pozolan untuk bahan stabilisator tanah. Metode yang digunakan pada penelitian ini adalah metode eksperimental. Tanah yang digunakan adalah tanah di desa Wirosari Kabupaten Grobogan. Kadar campuran yang digunakan adalah 16% dan 20% untuk bagasse ash maupun semen. Efektifitas penggunaan bahan campuran dilihat dari sifat fisik meliputi batas-batas konsistensi tanah dan sifat mekanis dengan uji pemadatan. Dari hasil pengujian dan analisis data diperoleh bahwa tanah asli termasuk jenis tanah berbutir halus kelompok A-7-5 dengan potensi pengembangan sedang. Nilai LL, PL dan PI berturut-turut adalah 77,3%; 60% dan 17,3%. Setelah dilakukan penambahan bahan stabilisator diperoleh tren yang sama untuk setiap campuran, yaitu LL menurun, PL meningkat dan PI menurun. Sedangkan pada sifat fisik kadar campuran tanah-bagase ash 16% memberikan nilai kepadatan yang lebih tinggi di banding campuran tanah semen. Tetapi jika kadar campuran ditambah tren kepadatan tanah akan menurun.
ANALISIS KORELASI NILAI CALIFORNIA BEARING RATIO (CBR) DAN NILAI KUAT GESER PADA TANAH LUNAK Sulistiawati, Baiq Heny; Goro, Garup Lambang; Junaidi, Junaidi; Isnubroto, Danang; Nurhadi, Imam
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 29 No. 1 (2024): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v29i1.5664

Abstract

The CBR value is influenced by soil gradation, mineral type, density and soil shear parameters. CBR testing is carried out on subgrade soil, but the undrained shear strength of the soil can also be used as a soil design parameter. Field shear strength tests that can be used to determine soil shear strength are DCP and Vane Shear. In contrast to DCP testing, shear strength testing is relatively quick and easy to determine soil properties to determine design parameters. Therefore, testing is needed to determine the correlation between the soil shear strength value and the CBR value to obtain a new equation that can be applied in the field. In this research, the CBR value was obtained through the Dynamic Cone Penetrometer test (DCP) and the soil shear strength of the vane shear test. DCP and Vane Shear testing was carried out at 10 test points in the Semarang area, Central Java. Laboratory testing is also carried out to validate soil types. The correlation obtained between the CBR value and the soil shear strength reached R = 0.8312. Based on this test, it can be concluded that the CBR value and soil shear strength value increase as the depth of the soil tested increases.
PENDAMPINGAN PEMBANGUNAN PONDASI JEMBATAN SEBAGAI AKSES PERUMAHAN PERMATA JANGLI TAHAP 2 Sulistiawati, Baiq Heny; Pangesti, Rendy Dwi; Supriyadi, Supriyadi; Fatmawati, Leily; Rahmawati, Roselina; Setyono, Karnawan Joko; Sukoyo, Sukoyo; Mulyono, Tedjo; Sudarmono, Sudarmono; Warsiti, Warsiti
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5584

Abstract

Bridges have a central role as routes that connect between regions, one of which is Permata Jangli Housing Phase 2. Because of the importance of this connectivity, community dedication to repairing bridges is a major concern in efforts to maintain the safety and sustainability of the bridge. This community service examines repair methods for the retaining walls around the bridge to avoid the potential for the bridge to be eroded by water flow. Through the active participation of community members and the implementation of appropriate construction techniques, the results of this collaboration show that the retaining walls around the bridge have been successfully repaired, as well as increasing their resistance to water pressure and erosion. The success of this community service not only improves the quality of life of local residents by ensuring sustainable connectivity, but also empowers communities in efforts to preserve their vital infrastructure. This community service can be an inspiring example for similar efforts in similar housing complexes that face similar challenges in maintaining important infrastructure such as bridges. This underlines the important role of community service in maintaining infrastructure as a key aspect in sustainable development in urban housing.
PENGENALAN DAN PELATIHAN PENGAMBILAN SAMPEL TANAH DISTURBED DAN UNDISTURBED UNTUK SISWA SMK 7 BIDANG KEAHLIAN KONSTRUKSI JALAN, IRIGASI, DAN JEMBATAN Sulistiawati, Baiq Heny; Harprastanti, Primasiwi; Fatmawati, Leily; Suwarno, Anung; Setyono, Karnawan Joko; Wahyumi, Puji; Sudarmono, Sudarmono; Mahmudi, Wildana Latif
Bangun Rekaprima Vol. 9 No. 2 (2023): Oktober 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v9i2.5221

Abstract

One of the challenges faced by students from SMK is the learning atmosphere and learning system applied by PTV. This is due to the gap between the SMK curriculum and PTV. State Vocational High School (SMKN) 7 Semarang is one of the vocational schools located in the city of Semarang. SMKN 7 Semarang has 8 expertise competencies, one of which is competence in the field of civil engineering, namely Building Construction, Sanitation and Maintenance (KGSP) and Road, Irrigation, and Bridge Construction (KJIJ). Students of SMKN 7 Semarang already have a basic understanding of civil engineering, but when they enter the PTV world, they still experience difficulties in several fields. Therefore, to bridge and fill the gap from the SMK curriculum to PTV, it is necessary to introduce and train related fields of civil engineering, one of which is field testing. Semarang State Polytechnic as one of the universities has competent human resources to provide solutions to these problems. The PKM team provided introduction and training on the use of hand drill and vane shear tools used for soil testing. The hand drill is used to take disturbed and undisturbed soil samples, while the shear vane is used to determine the shear condition of the soil. After conducting the introduction and training activities, students can better understand how to use the test equipment. In addition, students also understand better in analyzing soil data obtained from testing.
PRIORITAS PEMELIHARAAN JALAN BERBASIS TREATMENT PRIORITY INDEX (TPI) DI JALAN PERKERASAN ASPAL Pangesti, Rendy Dwi; Sulistiawati, Baiq Heny; Wahyono, Herry Ludiro; Junaidi, Junaidi; Goro, Garup Lambang
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5473

Abstract

The increase in the number of vehicles and economic growth in the city of Semarang puts significant pressure on road infrastructure. So it is necessary to prioritize maintenance on several road sections. This research uses the Treatment Priority Index (TPI) approach to identify road repair priorities in Tembalang District, Semarang City. Data on road conditions and daily traffic volume are variables in the TPI analysis and the data is analyzed using the Provincial District Road Management System (PKRMS). The results of the TPI analysis obtained road sections with critical conditions, especially Telumpak (TPI: 26.2) and Salak (TPI: 25.7). These sections require immediate repairs to ensure the safety and comfort of road users. This research provides a basis for information for policy makers to allocate resources efficiently, ensure sustainable road infrastructure, and support effective mobility in Semarang City, especially in Tembalang District.
PENDAMPINGAN PERBAIKAN LANTAI KERAMIK UPAYA PENINGKATAN KEAMANAN DAN KENYAMAN PROSES PEMBELAJARAN MI HUDALIL MUTTAQIEN KEDUNGPANAS: PENDAMPINGAN PERBAIKAN LANTAI KERAMIK UPAYA PENINGKATAN KEAMANAN DAN KENYAMAN PROSES PEMBELAJARAN MI HUDALIL MUTTAQIEN KEDUNGPANAS Pangesti, Rendy Dwi; Kusumastuti, Dianita Ratna; Sulistiawati, Baiq Heny; Abdillah, Rifqi Aulia
Bangun Rekaprima Vol. 11 No. 1 (2025): April 2025
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v11i1.6387

Abstract

The quality of education is not only determined by the curriculum and teaching methods, but is also influenced by the physical condition of the learning environment, including the comfort and safety of the classroom. MI Hudalil Muttaqien Kedungpanas is one of the elementary schools that deals with problems with physical facilities, especially damaged ceramic floors in several classrooms. This damage has an impact on disrupting the teaching and learning process, and has the potential to pose a safety risk to students and teachers. This community service program aims to improve the quality of learning facilities by repairing damaged ceramic floors. The method of implementing the activity includes a survey of initial conditions, preparation of technical plans, Procurement of materials, to the repair process which is carried out in stages in accordance with civil engineering principles. The results of the community service that have been carried out show that floor repairs have succeeded in creating a more comfortable, safe, and suitable classroom environment for learning activities. In addition to improving aesthetics and safety, these repairs also have a positive impact on student learning motivation. This community service activity confirms that adequate physical facilities are an important factor in creating a quality educational environment and supporting an optimal learning process.
PENGARUH PRELOADING TERHADAP LAMA WAKTU KONSOLIDASI PADA TAHAP PRECONSTRUCTION STUDI KASUS PESISIR KOTA SEMARANG: PENGARUH PRELOADING TERHADAP LAMA WAKTU KONSOLIDASI PADA TAHAP PRECONSTRUCTION STUDI KASUS PESISIR KOTA SEMARANG Widoanindyawati, Vemi; Lestari, Nor Puji; Triwardaya; Kusumastuti, Dianita Ratna; Marsudi; Amal, Andi Syaiful; Sulistiawati, Baiq Heny
Bangun Rekaprima Vol. 11 No. 1 (2025): April 2025
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v11i1.6532

Abstract

The problem of soft clay soil is currently one of the most worrying soil problems due to the increasing use of soft soil areas for construction needs. The main problem with soft clay soil is its nature which easily absorbs water but is difficult to release the water. The large amount of soft soil in the coastal area of Semarang City implies that in the construction process in the area, it is necessary to consider consolidation reduction. Soft clay soil takes a long time to reach 90% consolidation. This is because the permeability of soft clay soil is very small so that the process of dissipating water out is quite long. This dissipation process can be accelerated using engineering techniques, one of which is preloading. This process will further accelerate the consolidation process. This study was conducted to obtain the optimization of the embankment area against land subsidence on the coast of Semarang City using the numerical analysis method. From the research results, various variations were obtained for the area of embankment for a soil depth of 20 meters with a size of 30 x 30, the decline that occurred was 1.37 cm, a size of 40 x 40, the decline that occurred was 1.552 cm, a size of 50 x 50, the decline that occurred was 1.772 cm. While for the sea decline according to Steinbener
Co-Authors Andi Syaiful Amal Anung Suwarno, Anung Dianita Ratna Kusumastuti Goro, Garup Lambang Harprastanti, Primasiwi Isnubroto, Danang Junaidi Junaidi Leily Fatmawati, Leily Lestari, Nor Puji MARSUDI Mulyono, Tedjo Nikmah, Anisatun Nurhadi, Imam Pangesti, Rendy Dwi Puji Wahyumi, Puji Rifqi Aulia Abdillah, Rifqi Aulia Roselina Rahmawati Setyono, Karnawan Joko SUDARMONO SUDARMONO Sukoyo Sukoyo Supriyadi Supriyadi Triwardaya Vemi Widoanindyawati Wahyono, Herry Ludiro Warsiti Warsiti Wildana Latif Mahmudi, Wildana Latif