Experimental study to compare the effects of Gradation, Additives and Filler Materials on performance of CIR Mixes
Kamran Muzaffar Khan 1, Faizan Ali 2, Tahir Sultan 3, Shiraz Ahmed 4, Afaq Ahmed 5
1* Associate Professor, Department of Civil Engineering, UET Taxila, Pakistan. firstname.lastname@example.org
2, 4* Research Associate, Department of Civil Engineering, UET Taxila, Pakistan. email@example.com
3 Lecturer , Department of Civil Engineering, BZU Multan, Pakistan. firstname.lastname@example.org
5 Associate Professor, Department of Civil Engineering, UET Taxila, Pakistan.
Abstract: Road transport is one of the major components in economic and social development of a country, especially in developing countries like Pakistan. In Pakistan, 95% of the total freight movement throughout the country takes place through roads. Infrastructure development is one of the costlier processes and consumes a lot of national budget and then to maintain the infrastructure, again a considerable budget is required. There are various maintenance and rehabilitation techniques developed so far, with the modernization and new construction mechanical instruments and machines developed, cold recycling is a new, environmentally friendly and cost effective rehabilitation technique. The performance of Recycled mixes is still unknown as the recycled pavements behaves differently at different temperatures and in different regions of the world. Laboratory investigation of various stabilizing agents and recycling agent and amount of RAP and New Aggregates to be used is yet to be analyzed. Hence this research work is a step forward to investigate the laboratory performance of fillers and stabilizing agent on the properties of Cold Recycled mixes. Anionic emulsified bitumen is used as recycling agent and OPC is used as Stabilizing agent with certain amount of steel slag and marble waste is used as fillers in place of RAP in this research, and their performance is compared by Modulus of Resilience, Uniaxial Repeated Load Test (Static Creep) and Indirect Tensile strength Tests. The mixes containing 100 % RAP shows high Modulus of Resilience but mixes containing steel slag showed more resistance to permanent deformation in Uniaxial Repeated Load Strain test.
[Kamran M.K, Faizan A., Tahir S., Shiraz A., Afaq A. Experimental study to compare the effects of Gradation, Additives and Filler Materials on performance of CIR Mixes Life Sci J 2013;10(4s):176-184] (ISSN: 1097-8135).http://www.lifesciencesite.com. 27
Keywords: Road Transport, Infrastructure Development, Maintenance and Rehabilitation technique, recycling, stabilizing agent, fillers, Anionic Emulsified bitumen, RAP, Modulus of resilience, Creep.