Evaluation of mechanical properties of sdbc with waste plastic

Umesh Gowda T M , Mr. Suhas R , Dr. S P Mahendra

Hot mix asphalt, Semi Dense bituminous concrete, Marshall stability test, immersion wheel tracking test, waste plastic.

Bituminous mixtures are widely used throughout the world to build flexible paving. Asphalt or bituminous (which is used as a binder) and mixed minerals, laid out in layers and then compacted. In normal situations, if ordinary pavers are properly designed and run properly, bituminous mixing performance is in very poor condition. Today's asphaltic concrete pavements are better, due to the increase in traffic volume, the variations in the current or seasonal temperatures have increased and over the past. In addition, the performance of bituminous flooring is very scarce in humidity conditions. This strange work has been done on the use of bituminous mixtures and on the modification of bitumen. Research has shown that asphalt binders add polymers to the interaction between the aggregate and the cement to increase cohesion, to improve the properties of asphalt pavements to achieve greater demands. However, the additives that must be used to change the mixer or binder meet the requirements and financial aspects of the mixer. The basic properties of aggregates and bitumen is found by conduction laboratory experiments. Later Later the Aggregate gradation required for Semi Dense Bituminous concrete is prepared as per MoRTH guidelines, SDBC grading I is selected for this dissertation work. For convention SDBC mix optimum bitumen content is determined using Marshall Stability Test. For obtained optimum bitumen content. Then the rheological properties bitumen modified by waste plastic is determine and the properties aggregate coated with waste plastic is also determined. Then new mix of SDBC is prepared with different percentage of waste plastic. For this dissertation work a proportion of 2%, 4%, 6% 8% and 10% of different percentage of waste plastic coated with aggregates mix is prepared and mix strength is determined using Marshall Stability Test. Also, other marshall properties such as flow value, bulk density VFB and VMA is analysed. For the mix with maximum strength and minimum strength is analysed for its performance evaluations using Immersion Wheel tracking equipment. From these dissertation work it is observed by adding plastic to the unmodified bitumen, the rheological properties have been improved and by using plastic as a coating over aggregates, the properties of aggregates are improved. In SDBC mix with waste plastic of 8% has the higher strength than conventional mix. Coming to performance evaluation 8% of waste plastic mix has more rutting resistance potential than the conventional mix.

Volume 2 Issue 10, October-2017

Pages : 15 - 22