TY  - JOUR
T1  - An Examination of the Use of Liquid Asphalt Binders in Road Works in Nigeria
AU - , A.O. Olutaiwo AU - , A.S. Adedimila AU - , Umar Sidiq 
JO  - Journal of Engineering and Applied Sciences
VL  - 3
IS  - 1
SP  - 134
EP  - 142
PY  - 2008
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2008.134.142
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2008.134.142
KW  - Asphalt binder
KW  -cutback asphalt
KW  -asphalt emulsion
KW  -road works
KW  -Nigeria
AB  - The significant role of liquid asphalt binders in the construction, maintenance and rehabilitation of bituminous pavements cannot be ignored. Incidentially, it is estimated that more than 98 % of Nigeria’s over 40.000 km surfaced road network is bituminous-surfaced. The common experience in maintenance and rehabilitation of roads in Nigeria is that the pavements fail very soon after rehabilitation. In conducting research into the possible causes of these early failures, this study takes a look at the characteristics of the liquid asphalt binders used in maintenance and rehabilitation of roads in the country. The nearly exclusive use of cutback asphalt, even when asphalt emulsions would give higher returns in terms of performance and cost-effectiveness, is evaluated, the faulty processes of production of cutback asphalt are highlighted and appropriate recommendations are made.
ER  -