Header menu link for other important links
Applications of natural geotextiles in asphalt overlays to retard reflection cracking
, Sudarsanan N., , Gedela R.
Published in Korean Geosynthetics Society
Volume: 3
Pages: 1839 - 1844
Flexible pavements are multi-layered structures. The bond strength between these multilayers is as much important as the strength and stiffness of the individual layers in controlling the life of these pavements. The repeated loading and the varying climatic conditions cause the cracks and joints in the existing pavement to reflect the overlay over a period of time. This phenomenon is called reflective cracking. Insufficient bonding between the layers of the hot mix asphalt (HMA) is one of the reasons for the early appearance of the reflective cracks. Many interlayer systems are introduced to retard the crack propagation, out of which geosynthetic interlayer system has gained attention due to the ease of installation and cost effectiveness. The index properties of natural geotextiles like coir and jute are found to meet the specifications for paving fabric by different standard organizations. This paper focuses on the study of the interface bond strength of natural geotextiles in asphaltic concrete layers by conducting shear tests. The results are compared with those of unreinforced samples to quantify the influence of the reinforcement layers. It has been observed that in most cases the jute and coir geotextile-reinforced samples reduces the bond strength by 37% and 14% respectively while the synthetic counterpart improves the shear strength by 26% compared with unreinforced samples. Copyright © 11th Inter. Conf. on Geos. 2018, ICG 2018. All rights reserved.
About the journal
Journal11th International Conference on Geosynthetics 2018, ICG 2018
PublisherKorean Geosynthetics Society
Open AccessNo