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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Influence of Bitumen Emulsion Spray on Pavement Performance
Author(s)
John Richardson1 and Connor Campbell2
Full-Text PDF XML 551 Views
DOI:10.17265/2328-2142/2019.03.005
Affiliation(s)
1. Head of Technical Department, Colas Limited, Wallage Lane, Crawley, RH10 4NF,United Kingdom
2. UK Technical Service Manager, Shell International Petroleum Company Limited, Rowlandsway House, Manchester, M22 5SB,United Kingdom
ABSTRACT
Bitumen emulsion sprays have an important part to play in the achievement
of durable, efficient road pavement construction. Clearly, spraying of bond
coats or tack coats at the interface of the bound layers should improve the
likelihood of full bond and of resistance to the entry of water through the
layers, both of which are needed to meet the design objectives and for the
pavement to continue to function properly. BS 594987 recommends bond coats,
which are typically polymer modified bitumen emulsion, as best practice and
their use is prevalent for the whole range of paved areas in the UK. Recent
work examines the effect of different rates of spread of bitumen emulsion
sprays on interlayer adhesion and permeability, and attempts to ascertain
whether there are optimum quantities to obtain the desired effects.
KEYWORDS
Bond coat, bitumen emulsion, road pavement, permeability.
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