Influence of Aging and Moisture Conditioning on the Tensile Strength Characteristics of Bituminous Mixtures

Author(s): Bhaskar P Das, Nishant Bhargava and Anjan Kumar S
Paper category: Proceedings
Book title: Proceedings of the 71st RILEM Annual Week & ICACMS 2017,Chennai,India, 3rd -8th September 2017
Editor(s): Manu Santhanam
Ravindra Gettu
Radhakrishna G. Pillai
Sunitha K. Nayar
ISBN: 978-2-35158-196-4
ISBN: 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9:
Publisher: Published by RILEM Publications S.A.R.L.
Publication year: 2017
Pages: 474-483
Total Pages: 10
Language : English

Abstract: Moisture intrusion and aging are the major factors that influence the durability of bituminous
mixtures. In this study, the influence of aging and moisture conditioning on the tensile
characteristics of bituminous mixtures were studied. Two different types of aggregates and one
neat VG30 binder were used to prepare dense graded bituminous mixtures. Further, warm mix
additive Evotherm J1 was used to prepare the bituminous mixtures and a total of 24 different
combinations were studied. From the test results, it is noticed that consideration of aging and
moisture conditioning process is critical to assess the moisture damage in bituminous mixtures.
Statistically, the tensile properties of hot bituminous mixtures were found to be more
susceptible to moisture conditioning than aging. However, the tensile properties of warm
bituminous mixtures were found to be influenced by both aging and moisture conditioning.
Furthermore, the moisture susceptibility parameters were found to be influenced by aging,
aggregate type, and specific additive properties. However, fracture work density was found to
be a more promising parameter to capture the influence of aging and moisture on the tensile
characteristics of bituminous mixtures.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00