Paper Details

—Low tensile strength and high temperature shrinkage cracking reduce the future load carrying capacity(performance) of Jointed Plain Concrete rigid road Pavements (JPCP) under fatigue loading. The fatigue failure inJPCP is much higher compared to Continuously Reinforced Concrete Pavement (CRCP) thus the higher fatigue failurein JPCP structures and durability issues associated with the steel reinforcement corrosion in CRCP structures seek asolution. This research study implements an improved technique of using PET plastic as a reinforcement in slab of rigidroad pavement in a grid pattern because the PET plastic possesses better resistance to environmental temperature,moisture and aggressive chemicals degradation. The effectiveness of PET-grid reinforcement in two mix designs M1 andPAVTAL was studied. Significant improvement in compressive, tensile, and flexural strength was determined. TheCompressive strength of PET-grid reinforced concrete was found 23% higher compared to plain cement concrete of M1while for PAVTAL this increase was 20% compared to plain cement slag concrete (CSC). Splitting tensile strength ofPET-grid reinforced concrete was found 11% higher compared to plain cement concrete of M1, while for PAVTAL thisincrease was observed 12% compared to plain cement slag concrete. Flexural strength of sawed beams of PET-gridreinforced concrete was found 91% higher compared to plain cement concrete of M1 while for PAVTAL this increasewas 64% compared to plain cement slag concrete. An improved tensile behavior of PET-grid reinforced concrete wasobserved. It was experimentally evaluated that PET-grid reinforcement is effective in enhancement of compressive,tensile and flexural strength and in lowering the growth and propagation of tensile cracking under loading in rigid roadpavement slab. It was also experimentally concluded that 6 in. x 6 in. multiple layered PET-grid of 345.00mm gaugelength possessed 78% higher ultimate strength and experienced 41.9% lower tensile strain compared to 4 in. x 4 inmultiple layered PET-grid of 177.80mm gauge length. Similarly, the Break stress of 6 in. x 6 in. PET-grid was evaluatedas 22.8% higher than 4 in. x 4 in. PET-grid.

Jahan Zaib Khan, Rawid Khan, “THE USE OF PLASTIC WASTES AS REINFORCEMENT IN RIGID ROAD PAVEMENTS”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 8, Issue 11, pp. 6-15, November 2021.