High Performance Of Asphalt Concrete Pavement Construction Quality Control And Management

In recent years,especially after the reform and opening-up of our country highway construction business has been rapid development.With the continuous development of national economy and traffic volume and vehicle axle load increasing,people puts forward higher requirements on the asphalt road surface service level,people require asphalt pavement should not only have good flatness,driving small vibration,low noise,fast traffic opening,the advantages of easy maintenance and other traditional also requires has good high temperature rutting resistance,low temperature cracking resistance,and can maximize the extension of the asphalt surface using cycle.Compared with the early founding,asphalt roadbed construction technology,construction equipment,raw materials,control management has the very big enhancement,but at this stage of the asphalt pavement or there are many different levels of the early damage.High performance asphalt pavement is the strategic highway research program(SHRP)the most important research results,including the standard of asphalt and aggregate standard volume composition design method and aggregate gradation curve of the three content requirements.The asphalt pavement has good usability and durability,through high temperature control low temperature cracking and rutting,fatigue cracking,to improve asphalt pavement performance,high performance asphalt pavement has been widely used in high grade pavement in our country.In the actual construction process because of the equipment defects,the operation is not standardized,quality problem is not strong sense of responsibility,organization and construction personnel the management is not perfect cause of asphalt pavement,the construction process quality control is the key to ensure the quality of asphalt pavement.Therefore,how the existing conditions and equipment,through the application Industry and trade in the process of quality control and management,give full play to the effect of construction control and management,and always in control of quality in the construction process,improve the service performance and durability of asphalt pavement,it is particularly important.In this paper,with the experiment and Fuzhou practical engineering as the basis,research content mainly includes the following six aspects.(1)The problems existing in the current in the construction process of asphalt pavement and the reasons for the cause.(2)Aggregate production equipment,process and performance index of the aggregate(such as the aggregate density,moisture content and silt content,the needle flake content,crushing value,etc.)affect the performance of asphalt mixture road.In the construction process through which measures are put forward to aggregate quality control,so as to improve the quality of the asphalt surface construction.(3)Materials such as asphalt and mineral powder,fiber additive impact on road performance of asphalt mixture.By analyzing engineering examples,the quality of the asphalt road and the dosage of mixture,the influence of asphalt in the process of actual construction quality not up to standard or insufficient dosage will which unfavorable influence the performance of mixture,put forward in the asphalt comes into play,such as guarantee the quality of asphalt and asphalt amount control measures.And through the experimental analysis of ore powder dosage and specific indicators affect the performance of mixture road;According to various indicators of the adverse impact of the mixture,put forward the corresponding improvement measures,so as to ensure the quality of the asphalt surface construction.(4)Mineral aggregate level matching road performance of asphalt mixture.Mineral aggregate level matching of high temperature rutting resistance of asphalt mixture,low temperature crack resistance and the durability of pavement has a decisive role.Through practical engineering analysis of mineral aggregate gradation control the relationship between the management and construction quality,find out the reason of the change of the mineral aggregate gradation,and put forward effective control measures and management method of gradation change.(5)Construction technology and construction of mechanical impact on road performance of asphalt mixture.Asphalt mixture is more sensitive to changes in temperature,both the asphalt mixing,transportation,paving,or pavement compaction has the temperature of the strict requirements,analysis of compaction temperature,compaction times,paving speed factors such as the specific influence on pavement quality,through the paving speed,compaction times etc.The effective control of improving the construction quality.In actual construction process of the common problems and solutions.(6)Construction quality control and management system on the quality of the construction,give full play to the supervision department in the process of construction,the construction of the third party monitoring and the role of self-inspection,establish and improve the construction management system,the construction process of all-round tracking,about the quality of the project shall practise a system of rewards and punishment,improve the participants of the sense of responsibility.