Formulation of Modified Dense Graded Bituminous Macadam with Low Density and High Density Polythene with Zykotherm Admixture
This study presents the use of waste polythene derived as carry bags from kitchen waste and pond liner polyethelene as LDPE and bottle caps as HDPE as an additive in flexible pavements. In this study we will also add a fix percentage of zykotherm. Purposes of using above materials are to utilize environmentally unacceptable waste material and to develop a better material mix to resist increased traffic load and temperature effect resulting cracks in the pavement surface.
In the proposed study the plastic waste will be cleaned and cut into a size such that it passes through 2-3mm sieve using shredding machine. In this study Dense Bituminous Macadam (DBM) mix will be proposed to prepare by using plain bitumen as a control specimen and bitumen mixed with LDPE 2% and 4% & HDPE 2%, 3%, 4%, 5%) as by weight, with fixed percentage of Zykotherm as 1.5% by weight.Bitumen content is 4.5% by weight for all specimen. The Marshall Stability test, Penetration Test, and softening point test, were conducted on control and modified DBM mixes.