| dc.description.abstract | Saving energy and sustainable construction are becoming important issues in pavement engineering. These issues
constitute a strong incentive towards the use of foamed asphalt technology worldwide. Unfortunately, there is no current
research attempting implementation of foamed asphalt technology in Indonesia. Therefore, this paper contributes an
important figure of cold recycling construction in which a deteriorated pavement with a grading representative of
Indonesian road was stabilised using foamed bitumen. The specimens containing 2% foamed bitumen were fabricated
with diameter 100mm and height 50mm. The specimens were cured at ambient temperature prior to tensile strength and
stiffness modulus testing at various curing period. The results have provided preliminary indication of foamed asphalt
characteristics. During curing period, the properties can be identified into 3 stages; (1) moisture dependent region in
which the tensile strength and stiffness modulus increase with time due to loss of moisture, (2) critical region in which the
correlation between moisture and properties is not clear and affected by temperature regime, and (3) ageing or loss of
latent moisture region in which the properties is predicted increase with longer curing time. The correlation between
tensile strength and stiffness modulus has been established in which its stiffness (MPa) is about 4 times of its strength
(kPa). | en_US |
