Effect and Correction on Slab Interior Deflection of Cement Concrete Pavement Due to Temperature Gradient

Based on a systematic analysis of the curling deformation of pavement slab under positive temperature gradients,the amendable temperature gradient range for the measured slab interior deflection to be corrected is derived,and the correction method and corresponding regression expressions of measured slab interior deflection with falling weight deflectometer(FWD) and Benkenlman beam(BB) are introduced,greatly improving the precision and efficiency of deflection measurement.