American Society of Civil Engineers


Influence of Aging on the Mechanical Behavior of Municipal Solid Waste


by A. Nayebi, (M. Sc. School of Civil Engineering, Iran University of Science and Technology, P. O. Box 16765-163, Narmak, Tehran, IRAN. E-mail: ahmadnayebi@civileng.iust.ac.ir), N. Shariatmadari, (Associated Professor, School of Civil Engineering, Iran University of Science and Technology, P. O. Box 16765-163, Narmak, Tehran, IRAN. E-mail: shariatmadari@iust.ac.ir), M. H. Hamzeie Tehrani, (M. Sc. School of Civil Engineering, Iran University of Science and Technology, P. O. Box 16765-163, Narmak, Tehran, IRAN. E-mail: mhh_tehrani@civileng.iust.ac.ir), and P. Oskouie, (B. Sc. School of Civil Engineering, Iran University of Science and Technology, P.O. Box 16765-163, Narmak, Tehran, IRAN. E-mail: pedramoskouie@civileng.iust.ac.ir)
Section: Risk and Reliability in Geoenvironmental Engineering, pp. 696-703, (doi:  http://dx.doi.org/10.1061/41183(418)71)

     Access full text
     Purchase Subscription
     Permissions for Reuse  

Document type: Conference Proceeding Paper
Part of: Geo-Risk 2011: Risk Assessment and Management
Abstract: Study of the mechanical behavior of Municipal Solid Waste (MSW) is accompanied by many complications. Great interest in considering the most parameters involved in this behavior caused the achievement of useful properties of Municipal Solid Waste in recent years. These parameters are waste composition, leachate recirculation, unit weight, moisture, weather condition and aging. However, in the literature, researchers take into account all these parameters but the effect of age is not clearly obtained and its influence is not systematically measured. Impact of this factor on the mechanical behavior of the solid waste is quite complex. Some researchers have made conclusion that, when the waste’s age increases, the strength would be diminished, but there are also some indications that the strength of the solid waste is increased by the growth of age (Machado et al. 2008). In this paper, Large Scale direct Shear tests are applied on samples obtained from Iranian MSW landfills. The results show that mechanical behavior of MSW is significantly relative to the changes of composition with time (aging). As the composition becomes more monotonous the strength increases.


ASCE Subject Headings:
Geohazards
Aging (material)
Mechanical properties
Municipal wastes
Solid wastes