To evaluate the carrying capacity of the existing AC pavement,the surface elastic deflection is measured using the Beckman beam or FWD,and the compositive elastic modulus can be calculated. The standard control value of the modules recommended is 188 MPa.

• 采用贝克曼梁或落锤式弯沉仪(Falling Weight Deflectometer；FWD)；测定旧沥青路面表面回弹弯沉；计算综合回弹模量；来评价旧沥青路面承载能力；并推荐控制标准值为当量回弹模量宜大于188 MPa.