Salt Tolerance Limit of Bituminous Pavement

International Journal of Civil Engineering

© 2015 by SSRG - IJCE Journal

Volume 2 Issue 4

Year of Publication : 2015

Authors : Md. Shahin, ZH Khokon, MA Sobhan, TU Ahmed

10.14445/23488352/IJCE-V2I4P101

How to Cite?

Md. Shahin, ZH Khokon, MA Sobhan, TU Ahmed, "Salt Tolerance Limit of Bituminous Pavement," SSRG International Journal of Civil Engineering, vol. 2,  no. 4, pp. 1-6, 2015. Crossref, https://doi.org/10.14445/23488352/IJCE-V2I4P101

Abstract:

The quality of the black topped pavement is based on the quality of the bituminous materials. To increase the strength properties and quality of the bitumen several techniques are applied today throughout the world. The areas within which the bituminous pavements are constructed may be harmful to the pavements. Salt is one of the harmful agents to the bitumen and bituminous mixtures. In the coastal belt of Bangladesh, sometimes pavements are submerged under water for long time. So the pavements come in contact with the saline water and salt (Sodium Chloride). Hence Stripping is a dominative cause of destruction of the bituminous pavements. Seawater contains nearly three percent (3%) Sodium chloride and deposition of salts on the adjoining areas of the sea is predominant phenomenon. This salt intrusion reduces the bond strength of bitumen with aggregates. Thus the bituminous pavements become weaker and destructed rapidly. This investigation is to find the effect of salt on the properties of bitumen and tolerable limit of salt for the bituminous mixes. This study reveals that the stability value of bituminous mixes decreases with increase the salt content. Tolerable limit of the salt content based on strength properties is varying from 0 to 4 percent.

Keywords:

Properties of Modified Bitumen, Properties of Aggregates, Marshall Stability, Salt Tolerance Limit.

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