Open AccessStrengthening of Flexible Pavement by Adding Recron Fibre
Author(s) -
Smt MalathiNarra,
V. Mallikarjuna,
Ch. Revathi,
U. Srikanth
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1112/1/012021
Subject(s) - rut , asphalt , aggregate (composite) , cracking , materials science , asphalt pavement , composite material , fiber , fatigue cracking , weathering , deformation (meteorology) , geotechnical engineering , geology , geomorphology
Now-a-days, there is dire necessity for roads which aremore stable and stronger. Due to weathering conditions and heavy traffic, the pavement surfaces are getting deteriorated by rutting, pot holes etc. With the addition of this Recronfiber, there is an improvement in the properties of bitumen like increase in stability value and decrease in the flow value, % of air voids etc. Recron fiber is an artificial material obtained from the polyesterand which is also used as a secondary reinforcement for attainingtensile strength. It helps to resistthe cracks obtained by the improper laying of pavement surface and heavy loaded vehicles. In the present study, various proportions of Recron fiber such as 3%, 6%, 9% and 12%are added to Bitumen to prevent the deterioration of pavement surface andvarious tests areperformed on aggregate and bitumen. From the results, it is found that, the flow value and % of air voids decrease and stability value increases. Hence, it is proved that, it protects the pavement surface from the effect of fatigue, cracking and deformation. The obtained results show that 9% is the optimum percentage of Recron fiber to be added to the bitumen. For nominal bitumen mix, the maximum stability value is 12.07 kN and for modified bitumen (Recron added) mix the maximum stability value is 16.79 kN.