Research On Disease And Treatment Of The Asphalt Surface Reconstruction Of Old Cement Concrete Pavement

In order to promote the sustainable development of the national economy, the scale of infrastructure investment continues to increase. Since the concrete has many advantages, China’s road network project as well as the airport pavement used the cement concrete. But with the use of this type of pavement, it exposed a lot of problems. The way of using asphalt cover surface Paving is an effective way to solve the existing problems.This paper analyzed the types of diseases and treatment on old cement concrete pavement. Simple finite element analysis using ABAQUS software, especially explores the open type fracture, and the changing rule of the stress intensity factor is studied with the parameters. Aim to the forming mechanism for non-load crack disease, proposed the use of enhanced asphalt material as pre-curing method. The widespread use of the general material existing defects, proposed the use of double spreader reinforced asphalt material for surface micro disposal means cracks and compared the characteristics of water, oil reinforced asphalt layer. The oiliness of enhanced asphalt material has higher functionality; it can meet the requirements of driving ability and improve the integration of road. The water solubility of enhanced asphalt material is made in water, it can save the raw material and to protect the environment. So it is green resources absolutely.Aim to a civil airport requirements of the bitumen cover, researching the disease of bitumen pavement with the Ground penetrating radar. Choosing one airport pavement as an example and detecting the recessive disease in different core samples in this road. Using of advanced radar technology to recessive disease problems at different locations in the test area pavement According to the location and degree of the disease and offer the effective treatment measure. Using preventive maintenance measures to deal with the area of no disease.