EVALUATION AGING CHARACTERISTIC OF WARM MIX ASPHALT HOT ROLLED SHEET WEARING COURSE (HRS-WC) WITH PERFORMANCE GRADE ASPHALT
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 />...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/23763 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | 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 (δ) 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 |
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