Analysis of long-term ageing properties of rubber modified asphalt in desert areas

doi:10.3969/j.issn.1000-1565.2016.01.003

Abstract

Abstract: Asphalt ageing test is an important method to evaluate the service life of asphalt pavement.By using the RTFOT residual penetration and delay test,DSR dynamic shear rheological test method the rubber modified asphalt short-term and long-term ageing rules in desertarea were obtained.The results showed that the rubber modified asphalt RTFOT short-term aging residual penetration>SBS modified asphalt residual penetration>G No.90 asphalt residual penetration;rubber modified asphalt DSR test phase angle Delta<SBS change sex asphalt<matrix asphalt phase angle Delta.Rubber modified asphalt PAV ageing properties>SBS modified asphalt anti-aging properties>G No.90 asphalt anti-ageing performance.The research showed that the addition of rubber powder could obviously improve the anti deformation and anti aging properties of asphalt.Research results could provide scientific theoretical support and technical guidance approach for the waste rubber powder mixed with asphalt.

Key words: rubber powder, modified asphalt, dynamic shear, ageing property

CLC Number:

U419.91

YANG Sanqiang,ZHANG Shuai. Analysis of long-term ageing properties of rubber modified asphalt in desert areas[J]. Journal of Hebei University (Natural Science Edition), 2016, 36(1): 11-16.

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