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Title: Mitigation of rutting in bituminous roads by use of waste polymeric packaging materials
Authors: Jain, P K
Kumar, Shanta
Sengupta, J B
Keywords: Bituminous roads
Waste polymeric packaging material
High density polyethylene
Issue Date: Jun-2011
Publisher: NISCAIR-CSIR, India
Abstract: Rutting is caused by accumulation of permanent deformations caused by repeated applications of traffic loads and it is a stress controlled cyclic loading phenomenon. The process of deformation of bituminous surfacing is accelerated by increase of pavement temperature, reduction in stiffness of mix and increase in traffic loads. The aim of this paper is to report findings of study on increase in stiffness modulus of bituminous mixes by incorporation of waste polymeric packaging material (WPPM) to enhance pavement performance as well as to protect environment. This work presents studies on use of WPPM in road construction. Polymeric poly packs are used for packaging of milk for distribution to consumers and such bags after consumption of milk are thrown away. These used milk bags and other high density polyethylene (HDPE) based carry bags are used as additives in bituminous mixes. The optimum dose of these two types of WPPM for modification of bitumen and bitumen mix is investigated. Results reveal that optimum dose of WPPM is 0.3 to 0.4% by weight of bituminous mix. Higher dose lead to undesirably higher stiffness of mix. Rutting of bituminous mix can be reduced to 3.6 mm from a value of 16.2 mm after application of 20,000 cycles, by adding optimum quantity of WPPM in bituminous mix for road construction. Indirect tensile strength ratio further confirm potential of these mixes in prevention of moisture damage also, ultimately improvement of pavement performance, besides alleviating disposal problems of WPPM for clean and safe environment.
Description: 233-238
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.18(3) [June 2011]

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