Evaluation on low temperature performance of paving asphalt using bending beam rheometer

Abstract The analysis of producing paving asphalt from high-asphahene Tahe crude concluded that the major problem was the poor anti-aging performance and lower ductility of the asphalt.

The process for producing heavy traffic paving asphalt and polymer modified paving asphalt(PMA) from Tahe crude oil with high asphaltene content was presented,and the paving performance evaluation of these asphalts was also studied.

Advances in pavement asphalt produced by solvent deasphalting;

Pavement asphalt is a very complicated mixture consisting of different chemical components.

Changes of compositions and molecular weight distributions of asphalt for pavement during ageing;

Changes of Compositions and Molecular Weight Distributions of Asphalt for Pavement During Ageing;

The component of higher molecular weight in asphalt in.

Study on fusible packing material for road asphalt;

Investigation of using acid residue form sulfonate production and certain petroleum fractions to prepare road asphalt was carried out in bench scale.

Vacuum residue produced from the distillation of Xinjiang mixed crude oils could be used to prepare premium grade road asphalt.

Management and preventive maintenance countermeasures of airport asphalt pavement;

Types of airport asphalt pavement structure,damage pattern,development trend of pavement design method are detailed as well as design indexes choosing,and new large aircraft oriented airport asphalt pavement design method and indexes are discussed,and Results show that fatigue crack,rut and low temperature crack are major damage patterns for pavement structure design.

Based on the practical construction experience of the repaving works of an international airport in Shanghai, the article sums up the main construction technological process of repaving the asphalt pavement under the condition of the non-suspending air service at night and the emergent handling scheme.