Performance Assessment on Fiberglass‐Polyester Paving Mat Being Applied in Asphalt Mixture Complex

This paper mainly studies performances of the asphalt mixture complex paved with fiberglass‐polyester paving mat. We have examined the performances of the complex paved with fiberglass‐polyester paving mat by measuring assessment indexes of the asphalt mixture complex such as low‐temperature crack resistance, reinforcement strength, soaking shear performance, and fatigue performance and found that a layer of fiberglass‐polyester paving mat between the base cement concrete and the topping asphalt mixture can effectively enhance performances of the asphalt mixture complex. First, the bending test and the cleavage test show that complex test pieces paved with fiberglass‐polyester paving mat have better flexibility and carrying capacity, thus delaying emergence and extension of reflection cracks in the topping asphalt mixture. Second, the stress control fatigue test and the strain control fatigue test show that complex test pieces paved with fiberglass‐polyester paving mat can remarkably prolong fatigue life of the complex, thus prolonging service life of the asphalt pavement. Finally, the soaking shear test and the shear fatigue test show that compared with waterproof roll and glassfiber grid, fiberglass‐polyester paving mat can improve shear resistance of the complex test piece more effectively and enhance its durability.