Teras Jurnal
Vol. 14 No. 2 (2024): Volume 14 Nomor 2, September 2024

Evaluasi Kelayakan Material Gunung Terhadap Sifat Fisik dan Mekanis Pada Perkerasan Lentur Jalan Raya di Kabupaten Manggarai Timur

Gon, Kasmir (Unknown)
Caling, Claudius Lippershey Bright (Unknown)
Rusdi, Erdianto (Unknown)



Article Info

Publish Date
03 Oct 2024

Abstract

Abstrak Penelitian ini bertujuan mengevaluasi kelayakan material gunung quary Bondo sebagai timbunan pilihan, agregat kelas A dan agregat kelas B perkerasan lentur jalan raya. Hasil uji laboratorium menunjukkan bahwa jenis tanahnya memiliki batas cair 22%, indeks plastisitas 5%, lolos saringan Nomor 200 5,32% sampai 5,54%, Cu rata-rata 92,68 > 4, Cc rata-rata 5,17 > 3; Berdasarkan USCS dikategorikan sebagai GP-GM atau ML (low plasticity silt), kelompok A-1-a (0) menurut AASHTO. Nilai aktif sebesar 0,90 < 1,25 termasuk tanah normal. Berat isi kering maksimum 1,56 gr/cm3 pada kadar air optimum 22,9%, nilai CBR rendaman 96 jam sebesar 24% dan abrasi sebesar 22,49%, sehingga layak sebagai material timbunan pilihan perkerasan lentur jalan raya, tetapi tidak layak dipergunakan sebagai material agregat kelas B karena nilai CBR rendaman < 60% dan juga tidak layak dipergunakan sebagai agregat kelas A karena persen lolos saringan 1 ½ ˜ kurang dari 100% dan nilai CBR rendamannya < 90%. Kata kunci: laboratorium, layak, agregat, timbunan pilihan Abstract This research aims to evaluate the suitability of Mount Quary Bondo material as the embankment, class A and B aggregate for flexible pavement. Laboratory test results show this type of soil has LL of 22%, PI 5%, 5.32% to 5.54% passing No. 200 sieve, average Cu 92.68, average Cc 5.17 3; It is categorized as GP-GM or ML (USCS), and A-1-a (0) (AASHTO). The active value is 0.90 < 1.25 including normal soil; max dry density 1.56 gr/cm3 at 22.9% wopt, the soaked CBR of 96 hours is 24%, the abrasion is 22.69%; so it is suitable as the embankment for flexible highway pavement, but is not suitable for use as class B aggregate material because the soaked CBR < 60% and it is also not suitable for use as class A aggregate because percentage passing the 1 ½ (38,1 mm) sieve < 100% and the soaked CBR < 90%. Keywords: feasible, aggregate, selected material

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Journal Info

Abbrev

teras

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

Description

Teras Jurnal is a journal that communicates the results of research within the scope of civil engineering and scientific development as well as aspects of practitioners. The process of manuscript submission is open throughout the year. All submitted manuscript will be screened with double-blind peer ...