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Abstract
This study investigates the monotonic and fatigue behaviour of triangular polypropylene fibre (TPF)-reinforced roller-compacted concrete (ROCC) with fly ash. An experimental programme to investigate the response of square model slabs was tested for static loading at the centre, edge and corner on two types of modulus of subgrade reaction. The TPF used was 0.25%, 0.50% and 0.75% with 15%, 30% and 45% FA per 1 m3 of ROCC. Embedded strain gauge in slab and deflection profile measurement showed that fibres assisted crack bridging, cracks resistance and load redistribution and were compared with FEM analysis. The fatigue studies were carried out to get the fatigue life and energy consumed for fibre-reinforced ROCC with different stress ratios. The fatigue failures of concrete roads due to repetitive loading are smaller than the loads that can cause failure in a single application. The result shows that the ideal amount of TPF and fly ash (FA) has enhanced the collapsible load of slabs, fatigue life, flexural and tensile strength of ROCC for pavements.