Measurement and Analysis of Temperature Deformation in Rubber Concrete Pavement
The basic road performance of rubber concrete and conventional concrete was determined through indoor experiments,and the strain and temperature of rubber and conventional concrete pave-ments were measured using fiber optic grating technology.The differences in temperature deformation characteristics of the two types of pavements were compared and analyzed.The results show that the strength and modulus of rubber concrete are lower than those of conventional concrete,but the tough-ness is improved.Pavement strain exhibits significant temperature hysteresis characteristics.The temperature sensitivity of rubber concrete pavement is 10％～16％higher than that of conventional concrete pavement,with greater temperature deformation.The monthly fitting slope of rubber con-crete pavement is 4％～12％lower than that of conventional concrete pavement,resulting in smaller temperature expansion and contraction deformation.The longitudinal warping deformation of rubber concrete pavement is more significant,while the transverse warping strain of both is similar.Rubber concrete pavement generates less temperature stress and has the potential for constructing large-sized pavements.
万方数据
维普
