Old Cement Concrete Pavement Structure Research and Applied Research
|Course||Architecture and Civil Engineering|
|Keywords||Old Cement Concrete Pavement Asphalt overlay Reflective cracking Stress-absorbing layer Load stress Temperature stress Design method|
Of the past, the construction of a number of cement concrete pavement recently facing overhaul , upgrading and improve road level tasks . Since the majority of ordinary cement concrete pavement for concrete pavement seams wrong units, Slab Hollow , broken board and squirt mud and other issues seriously affect cement pavement life and Paving transformation effect . Reasons for relying on State Road 104 , Tai'an - Qufu segment transformation entity Engineering analysis of the test sections through traffic survey and evaluation of the old cement concrete pavement , traffic volume , traffic composition , for assessing the condition of the pavement structure and construction , and destruction of produce . analysis , according to the principles of fracture mechanics , reflective cracking and expansion mechanism of asphalt overlay on cement concrete pavement analysis , structural design overlay , and further study of the theoretical system of stress-absorbing layer address reflective cracking . Do stress-absorbing layer system analysis to verify the reasonableness of the proposed design method ; design and performance of materials used in the overlay structure , the proposed method through macadam asphalt gravel and grade of the large gap technical requirements and indicators , quality inspection and control standards , and construction technology . Tracking and detection of the trials, road , observe the test road cracks , rutting , skid resistance , deflection , and flatness change , to verify the technical and economic feasibility of several structures , the most reasonable rehabilitation programs , and paved layer design feasibility validation .