STRENGTH AND PERFORMANCE ASPECTS OF RECYCLED AGGREGATE FOR USE IN RIGID PAVEMENTS

P. Rathish Kumar*, M. Heeralal, Y.V. Rao and B. Rakesh

Department of Civil Engineering, National Institute of Technology, Warangal, A.P., (INDIA)

*E-mail : drrateesh@gmail.com

Received on August 08, 2009 and accepted on December 06, 2009

ABSTRACT

The utilization of recycled aggregate is now picking up with wide spread applications in many areas including rigid pavement applications. There are certain issues to be sorted out that are likely to hinder the utilization of recycled aggregate in rigid pavements. Two of the important aspects viz., type and level of crushing and influence of the old mortar adhering to the aggregate after crushing are taken up in this investigation. The strength and the performance aspects of machine and hand crushed aggregates and the influence of old mortar in recycled aggregate concrete is being brought out.

Keywords : Construction and demolition waste, Rigid pavements, Level of crushing, Attached mortar.