Abstract:
Performance of Bitumen modified with thermoplastics based on natural rubber(NR) and Low
density polyethylene(LDPE) was investigated. Blending of NR and LDPE in different ratios was
done by using a plastic extruder at 150
0
C and the resultant material was referred as TPNR . Two
types of TPNRs were made, with and without di-cumyl peroxide(DCP),which was used as the
compatibiliser. Blending of TPNRs into 60-70 grade bitumen and 80-100 grade of bitumen was
affected at 163
0
C by using a mixer fabricated in the laboratory at a speed of 1500 rpm. TPNR
modified bitumen was tested for penetration, softening point, Ductility etc by using the specific
testing equipments located at different laboratories. Marginal improvements in certain properties
could be observed.
Citation:
Ranasinghe, H.M.L.U., Madushanka, R.D., & Liyanage, N.M.V.K. (2017). Thermoplastic polymer modified bitumen
[Abstract]. In V. Sivahar (Ed.), Leveraging materials for a smart future (p. 22). Society of Mechanical Engineering Students, Department of Materials Science and Engineering, University of Moratuwa.
