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Rangkang, Jeanely; Sondakh, Fery; Saerang, Enteng

doi:10.47600/jtst.v2i3.252

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…There is a similar trend between increasing the stabilization material mixture (tailings) and clay soils' engineering properties. The increase in the proportion of tailings substitution is directly proportional to the increase in the maximum dry weight and CBR value [10].…”

Section: Tailingmentioning

confidence: 99%

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Improvement of Soft Soil for Subgrade Stabilized with Emulsified Asphalt and Tailing

Hasyimi¹,

Syahril²

2021

Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)

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Soil is one of the construction materials in civil works. Soft soil that has low bearing capacity becomes a problem in the construction process. To support the construction process, stable soil conditions are needed. The subgrade is the lowest layer of soil that serves as a place for laying the pavement layer and supports the road pavement construction above it. By stabilizing the soil, soil quality will increase. A more stable soil layer makes it able to distribute the load much better. The addition of emulsified asphalt and tailings to soft soil is intended to stabilize or improve the soil. One of the parameters to determine whether the bearing capacity of the soil is good or not is by knowing the CBR value. This study aims to analyze the change in CBR value with the addition of emulsified asphalt and tailings. In this study, the percentage of 8% emulsified asphalt and 5%, 6% and 7% tailings with curing of 0, 7, and 14 days were used. The tests in this study included soil physical properties, Compaction, Atterberg limit and CBR testing without immersion. The results showed that the use of emulsified asphalt and tailing increased the maximum dry density and reduced the optimum water content. It can reduce the Plasticity Index by 76.00% from soft soils. The CBR results show the optimum value of stabilization on a mixture of 8% emulsified asphalt and 6% tailings with a maximum dry of 1.67 gr/cm3, the optimum moisture content is 25.13%, and the CBR value is 7.10% with a curing time of 7 days. It can be concluded that the use of emulsified asphalt and tailings with an effective composition can be used as an alternative material to stabilize soft soil on road pavement structures.

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Section: Tailingmentioning

confidence: 99%

“…Tailings are materials that are disposed of after the process of separating valuable materials from an ore [11]. This material will be used as soil stabilization because it can increase the CBR value of the soil [10]. Furthermore, it can also improve the characteristics of the soil material [5].…”

Section: Replacing Poor Soilmentioning

confidence: 99%

Improvement of Soft Soil for Subgrade Stabilized with Emulsified Asphalt and Tailing

Hasyimi¹,

Syahril²

2021

Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)

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“…Kayu kelapa dilih karena memiliki corak yang estetik serta mudah untuk didapat khususnya di daerah tropis seperti Indonesia. Selain sisi estetika, penggunaan kayu kelapa sebagai alternatif dari kayu konvensional dikatakan environmental friendly karena jenis ini diambil dari perkebunan rakyat tanpa perlu DOI 10.22225/pd.12.1.6076.76-84 77 ISSN Print: 2303-2693 ISSN Online: 2581-2939 merusak hutan (Rangkang et al, 2016). Kayu kelapa masuk dalam kelas awet III serta memiliki berat jenis rata-rata 0.74 (Indrosaptono et al, 2014), agar dapat digunakan secara optimal, jenis kayu yang masuk dalam kelas awet III, IV dan V perlu diawetkan terlebih dahulu (Bachtiar, 2007).…”

Section: Pendahuluanunclassified

Analisis Kekuatan Atap Kubah Dengan Struktur Rangka Kayu Kelapa

Yasa

Indrashwara

2023

PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa

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Struktur atap kubah dengan kayu kelapa merupakan inovasi baru yang dicetuskan oleh CV. Bali Mandala pada salah satu projek mereka yang berlokasi di Hawaii. Dimana material utama menggunakan kayu kelapa yang telah di treatment terlebih dahulu untuk meningkatkan ketahanan rayap dan api. Atap kubah ini memiliki struktur yang unik yaitu barupa rangka bermotif bunga, karena bentuk struktur yang tidak umum, maka untuk memastikan bahwa struktur aman dan dapat dipasarkan secara luas perlu dilakukan uji kelayakan. Keterbatasan fasilitas untuk uji beban angin secara langsung menjadi alasan diperlukan analisis dengan pemodelan tiga dimensi (3D) pada komputer. Untuk bisa memperoleh perilaku struktur yang sesuai antara kenyataan dan model 3D, maka dilakukan validasi dengan trial and error pada elastisitas kayu hingga memperoleh deformasi yang sesuai antara struktur di lapangan dan model 3D. Model 3D yang sudah tervalidasi diberikan beban atap, beban angin dan salju yang sesuai dengan ketentuan ASCE 7-22 untuk daerah Hawaii. Dari kombinasi beban layan (D+Lr) didapat deformasi maksimum sebesar 20.7 mm sedangkan lendutan maksimum yang dizinkan adalah 30 mm. Untuk kapasitas tarik, tekan, geser dan lentur elemen kayu dicek berdasarkan Metode Desain Tegangan Izin (DTI) SNI 7973:2013, dimana tegangan tekan, tarik, geser dan lentur akibat beban lebih kecil dari tegangan izinnya. Sehingga dari hasil kontrol tegangan dan lendutan yang masih dibawah nilai batasnya, maka dapat dikatakan atap kubah dengan struktur rangka kayu kelapa aman dan dapat diaplikasikan.

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Untitled

Cited by 2 publications

References 5 publications

Improvement of Soft Soil for Subgrade Stabilized with Emulsified Asphalt and Tailing

Improvement of Soft Soil for Subgrade Stabilized with Emulsified Asphalt and Tailing

Analisis Kekuatan Atap Kubah Dengan Struktur Rangka Kayu Kelapa

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