Abstract
Most road surfaces in Taiwan are paved with asphalt concrete but the phenomena of rutting, cracking and stripping of the pavement are frequently occurring due to the effects of traffic flow, thermal variation and water erosion caused by rain. In this study, a series of experiments were performed to examine the effectiveness of anti-stripping fillers, which include; rock flour, rock flour with 1% lime and rock flour with 1% cement, respectively, in the mixture of asphalt concrete. The experimental mixing results showed that the case of rock flour with 1% lime has a relatively better performance in several categories including stability value, flow value, retained strength, wrapped asphalt rate in grains, resilient modulus, dynamic stability and rate of rutting deformation. The evaluated information implies that this filler can increase the asphalt concrete’s abilities to resist rutting deformation and stripping of the road surface, thus increasing the durability. The results also provide a good reference for using in road construction with similar regional characteristics to Taiwan.
Highlights
One way is the use of anti-stripping material in the mixtures, which may increase the cohesive force and stiffness of the asphalt concrete, to reduce the stripping phenomenon resulting from water erosion and temperature variation
This temperature sensitive pavement material suffers from rutting, cracking and helpful to analyze the deformed asphalt concrete structure based on various theoretical models and numerical calculations[14-17] and apply these to a stripping caused by the effects of traffic flow, thermal specified regional road condition and evaluate it
High temperatures in addition to the impediments of overweight loading and heavy rainfall contribute to frequent road surface deformation and methods are usually limited to only describe the stressstrain relationship of a typical asphalt concrete material, but this is insufficient to explore the characteristics of asphalt concrete mixing with other additives
Summary
One way is the use of anti-stripping material in the mixtures, which may increase the cohesive force and stiffness of the asphalt concrete, to reduce the stripping phenomenon resulting from water erosion and temperature variation. These typical damaged forms of road surface in the local area, anti-stripping materials are investigated through a series it can clearly be ascertained that road stripping is the of experiments based on the applicable asphalt concrete most serious impediment among these road surface composition codes for roads. The unit weight can reflect the compression density (d) of asphalt concrete and the on-site test requires over
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