Suhana Koting, Mohamed Rehan Karim, Hilmi Bin Mahmud, Norjidah Anjang Abdul Hamid - Mechanical properties of cement-bitumen composites for semi-flexible pavement surfacing  (Vol IX, No 3)

Vilnius Gediminas Technical UniversityRiga Technical UniversityTallinn University of TechnologyBaltic Road Association

 

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ISSN 1822-427X print
ISSN 1822-4288 online
 

 

 
 

"The Baltic Journal of Road and Bridge Engineering"
Vilnius: Technika, 2014, Vol IX, No 3, p. 191-199


Suhana Koting, Mohamed Rehan Karim, Hilmi Bin Mahmud, Norjidah Anjang Abdul Hamid

Mechanical properties of cement-bitumen composites for semi-flexible pavement surfacing

DOI: 10.3846/bjrbe.2014.24
 
Semi-flexible pavement surfacing is a composite pavement that utilizes the porous pavement structure of the flexible bituminous pavement, which is grouted with an appropriate cementitious material. The main objective of this study is to investigate the mechanical properties of cement-bitumen composites as an alternative semi-flexible pavement surfacing material. This involves the selection of acceptable proportions of cementitious grouts as well as the development of cement-bitumen composites. The findings showed that by replacing 5% of the cement with silica fume (with adequate amount of superplasticizer) there is improvement in compressive strength and tensile stiffness modulus. In addition, resistance to abrasion is improved.
 
Keywords: cementitious grouts, superplasticizer, open-graded asphalt skeletons, cement-bitumen composites, workability, compressive strength, semi-flexible pavement.

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