The Test Research of the Road Use Performance of Lime-fly Ash Stabilized Aggregate Material 

Runhua ZHANG 

School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing, 400074, CHINA 

Abstract: In this paper, through a large number of literature reading, summarizing the former research about the road performance of the lime-fly ash stabilized aggregate, based on experiment using the method from the raw materials, mix proportion design, improving the early strength mixture, adding admixtures, etc. this paper does the research of the system, and strive to maximize its road performance under existing sources of material. Through the research, it is concluded that efforts to improve the early strength of lime-fly ash stabilized aggregate, sodium carbonate is suitable mixed outside early strength agent for lime-fly ash stabilized under the condition of room temperature, sodium hydroxide and compound early strength agent is suitable for low early strength agent of lime-fly ash stabilized; Fiber reinforced semi-rigid base materials can improve the fatigue life of semi-rigid material, lower modulus and higher toughness, reduce the use of pavement crack and improve the pavement performance. 

Keywords: Lime-fly ash stabilized aggregate; Road performance; Polypropylene fiber; Temperature shrinkage