Analisis Kesesuaian Model Modulus Aspal dan Campuran Laston Lapis Aus untuk Aspal Modifikasi Asbuton Murni

Abstract

Pavement design with mechanistic approach has been rapidly developed since the last three decades. Since 1970's bituminous mixes characteristics has been understood better with the discovery of testing equipment(s), such as Direct Shear Rheometer (DSR) and Universal Material Testing Apparatus (UMATTA) that can directly determined the modulus of asphalt and mixes. Some models also parallelly developed for the same purposes which are determining asphalt stiffness modulus (S bit ), such as: Van der Poel Nomogran, and Ullidtz, formula and mix stiffness modulus (S mix ), such as: Bonnaure et.al (1977), Asphalt Institute (1982 and Nottingham (Brown, et. al. 1984). Within the frame of thinking of improving asphalt material performance with local modifier, the research aims to evaluate the suitability of the model to examine the result for mixes with pure (fully extracted) asbuton of asphalt binder. The modification that expectly could improve S bit and S mix was done with adding 8% by weight of pure asbuton to the Pen grade asphalt in wearing course mix. The research result is hopefully could give significant contribution to the asbuton research in term of model suitability indication, that originally used pen grade, to predict the value of S bit and S mix within the mix of wearing course that used the pure asbuton modified asphalt.

The effect of pre-vulcanized latex usage on Marshall characteristics and stiffness modulus in hot mix asphalt wearing course (AC-WC) mixtures

“…Thus, in order to examine the rheological properties of modified asphalt, DSR testing was done (Fig. 3; Rahman & Zega, 2018;Bethary & Subagio, 2020). The DSR test result (Fig.…”

“…This test is performed using the UTM instrument depicted. A mathematical model presented by Brown and Brunton (1984), and Read and Whiteoak (2003) can be used to calculate the stiffness modulus prediction (Rahman & Zega, 2018). According to Rahman and Zega (2018), and Bethary and Subagio (2020), the magnitude of the asphalt stiffness modulus (Sbit) acquired from DSR testing affects each of these mathematical models.…”

Predicting Stiffness Asphalt Natural Rubber Latex Modulus Value Using Multiple Linear Regression Analysis

“…Model modulus kekakuan aspal yang banyak digunakan yaitu Nomogram Van der Poel yang dilengkapi dengan Persamaan Ullidtz. Model ini memiliki batasan yaitu hanya dapat memperkirakan nilai modulus kekakuan jenis aspal minyak (Rahman, et al 2018). Penggunaan aspal minyak secara murni belum cukup mampu menahan beban kendaraan maka dari itu diperlukan bahan tambahan ataupun subsitusi untuk memodifikasi aspal yaitu salah satunya menggunakan bahan elastromer ataupun plastomer.…”

Desain Perkerasan Jalan Sumberboto - Gununggede Blitar Menggunakan Metode Manual Desain

“…Model analisis umur rencana yang efektif harus menggunakan mekanisme menggabungkan kinerja perkerasan jalan jangka panjang dan diantisipasi biaya terkait [17]. Ini juga harus memberikan pilihan praktis kepada perkerasan dalam mengembangkan potensi perkerasan jalan rencana [18]. Penentuan umur rencana perkerasan sesuai dengan perkerasan jalan nomor 02/M/BM/2013, jalan ditentukan dengan umur rencana dilakukan umur 20 tahun.…”