ANALISIS KELAYAKAN MATERIAL QUARY TAPINALU SEBAGAI AGREGAT CAMPURAN ASPHALT CONCRETE BASE PADA PEKERJAAN JALAN

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Quary Tapinalu merupakan quary yang berada pada kabupaten Seram Bagian Barat. Material yang di ambil dari sungai Wai Tapinalu ini baru pertama kali dipakai untuk pekerjaan Peningkatan Kapasitas Struktur Jalan. Tujuan penelitian ini akan dilakukan uji kelayakan material yang berupa batu pecah 5-10, batu pecah 10-20 dan batu pecah 20-30, pasir dan abu batu dan menentukan indeks kepipihan dan kelonjongan material agregat kasar.Penelitian ini mengacu pada Spesifikasi Bina Marga, 2018 Revisi 2. Dengan metode eksperimen, analisa data yang dilakukan dalam penelitian ini meliputi analisa saringan (SNI 03-1968-1990), berat jenis dan penyerapan agregat kasar dan halus (SNI 1969:2008), kadar air dan kadar lumpur (SNI 1971:2011), abrasi (SNI 2417:2008), kepipihan dan kelonjongan (SNI 8287:2016) dan marshall test (SNI 06-2486-1991).Berdasarkan hasil pengujian di laboratorium diperoleh: nilai abrasi sebesar 35,40%, berat jenis dan penyerapan agregat kasar yang terdiri dari berat jenis bulk 2,70, berat jenis SSD 2,73, berat jenis semu 2,78, dan penyerapan 1,21%, berat jenis dan penyerapan agregat halus yang terdiri dari berat jenis bulk 2,53, berat jenis SSD 2,57 berat jenis semu 2,62 dan penyerapan 1,40%, kepipihan 0,85% dan kelonjongan 0,26%, proporsi masing-masing batu pecah 10-20 mm sebesar 20%, batu pecah 20-30mm sebesar 21%, batu pecah 5-10mm sebesar 18%, pasir sebesar 12%,abubatu sebesar 28%. Karakteristik marshall pada kadar optimum sebesar 5,5%. Dari hasil analisis marshall pada KAO didapatkan nilai VIM 4,29%, VMA 15,72%, VFB 72,69%, Flow 3,25 mm, Stabilitas 1866 kg/mm dan Marshall Quotient 450,00 kg/mm.

Quary Tapinalu is a quary located in the West Seram district. The material taken from the Wai Tapinalu river is the first time it has been used for Road Structure Capacity Building work. The purpose of this study will be to conduct a material feasibility test in the form of 5-10 crushed stones, 10-20 crushed stones and 20-30 crushed stones, sand and stone ash and determine the flatness and omethyst index of coarse aggregate materials.This research refers to the Highway Specification, 2018 Revision 2. With the experimental method, the data analysis carried out in this study included filter analysis (SNI 03-1968-1990), specific gravity and absorption of coarse and fine aggregates (SNI 1969:2008), moisture content and sludge content (SNI 1971:2011), abrasion (SNI 2417:2008), flatness and omethyst (SNI 8287:2016) and marshall test (SNI 06-2486-1991).Based on the results of tests in the laboratory, the abrasion value was obtained: abrasion value of 35.40%, specific gravity and absorption of coarse aggregate consisting of bulk specific gravity 2.70, specific gravity of SSD 2.73, pseudo-specific gravity 2.78, and absorption of 1.21%, specific gravity and absorption of fine aggregate consisting of bulk specific gravity 2.53, specific gravity of SSD 2.57, pseudo-specific gravity of 2.62 and absorption 1.40%,  flatness of 0.85% and ovalness of 0.26%, proportion of each 10-20 mm of broken stone is 20%, 20-30mm of broken stone is 21%, 5-10mm of broken stone is 18%, sand is 12%, ash stone is 28%. The characteristics of marshall at the optimum level are 5.5%. From the results of the marshall analysis on KAO, a VIM value of 4.29%, VMA 15.72%, VFB 72.69%, Flow 3.25 mm, Stability 1866 kg/mm and Marshall Quotient 450.00 kg/mm.