EVALUATION AGING CHARACTERISTIC OF WARM MIX ASPHALT HOT ROLLED SHEET WEARING COURSE (HRS-WC) WITH PERFORMANCE GRADE ASPHALT

• Main Author: PURWONO CAHYADHI (NIM : 26914307), RADEN
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23763
• Institution: Institut Teknologi Bandung

Nowadays, environmental damage getting serious attention, not least in road <br /> <br /> construction. Development of warm mix asphalt technology now being developed <br /> <br /> as a way to reduce air pollution and reduce excess energy use in road construction <br /> <br /> This research uses Cariphalte asphalt, a polymer synthesis of PG elastomer types. <br /> <br /> To reduce mixing and compacting temperatures, Sasobit additives are being used <br /> <br /> with 3% content. The Gradation Mixture Design used is Lataston Lapis Aus (HRSWC). <br /> <br /> Asphalt and aggregate characteristics were tested using standard from <br /> <br /> General Specification of Highways 2010 edition, 3rd revision. Rheology aspect of <br /> <br /> asphalt were measured using Shear Modulus Test, and mixture performances were <br /> <br /> measured with Marshall test and Dynamic Modulus test. <br /> <br /> Addition of a 3% sasobit additive on Asphalt Cariphalte leads to a decreases in <br /> <br /> mixing and compacting temperature. In the Dynamic Shear Rheometer (DSR) Test, <br /> <br /> Cariphalte and Cariphalte + Sasobit 3% had PG-70 values. Addition of a 3% sasobit <br /> <br /> additive on Asphalt Cariphalte also increases the value of the Ageing Index. <br /> <br /> Rheology Test with Asphalt Mixture Performance Tester (AMPT) shows a decrease <br /> <br /> in Dynamic Modulus (E *) value and an increase in Phase Angle (&#948;) value. This <br /> <br /> result reveals that there is a decrease in the stiffness of the Lataston Lapis Aus <br /> <br /> (HRS-WC) asphalt mix. Results from Asphalt Characteristics Test and Bitumen <br /> <br /> and Mixture Rheology Test show, in good conformity, that asphalt and asphalt <br /> <br /> mixture is more sensitive to temperature changes with the addition of 3% Sasobit. <br /> <br /> In general, the test results shows that decreased mixing and compacting <br /> <br /> temperatures due to addition of sasobit additives 3% on Asphalt Cariphalte resulted <br /> <br /> in decreased performance as well as an indication of decreased durability. However <br /> <br /> the test also reveal that the addition increases asphalt workability / ease of work