Construction Quality Control Of Roller Compacted Asphalt Core Wall Of Qitai County Biliu River Dam

Because of the simple construction,good waterproof capability,economic applicability and some other features,Rolled Asphalt-concrete Core wall Dams has achieved great progress in recent years.To provide some technical experience and scientific evidence,this article will take the the entire construction of the Biliu River reservoir as an example,systematically analyze and summarize the construction technology,quality control and quality testing of the construction of the roller asphalt concrete core.The main content include:1.Quality control of raw material: This paper analyzes the raw material of asphalt concrete from two aspects,which are the measures of material detection and the control of the monitoring index.Firstly,this article compares the detecting principles,analyzes the practicability of detection method and the factors that affect the detection results on the base of the detection methods of each raw material.Second is the quality control of raw material,this article analyzes the relationship between each detecting index as well as the factors that affect the features of asphalt concrete,meanwhile,this article introduces the indexes and control standards of the raw material of the core of the Qitai Biliu River Dam.2.The control of the construction quality: to introduce the control of the rolled asphalt concrete core wall in the field performance,this article combines the features of field performance of Biliu River Dam with six aspecs,which are the determination of the mixture ratio of asphalt concrete,the preparation and transportation of asphalt concrete,paving of and roller compaction of the core wall,the detection of the core wall quality and the construction methods under special situations,such as construction in low temperature,construction in rainy season,core wall Overwintering,etc.Meanwhile,this article studies and analyzes the features of the construction of the Biliu River Dam.3.The management of the construction techniques: this article combines the construction standards and the design documentation,summarizes the technical index and technical requirements of the quality control of the asphalt-concrete core wall,studys and analyzes the construction tips and construction methods of t key parts of the whole construction,and summarizes the construction experience.