Effectiveness of the shear strength ratio as an indicator of moisture susceptibility of asphalt mixtures
Source abstract
Abstract
In this study, the use of shear strength ratio (SSR) in analysing asphalt mixture’s susceptibility to moisture was investigated and verified. Three surface and two base mixtures were considered for the asphalt mixture to be tested. Indirect tensile and uniaxial compressive strength tests were conducted in the laboratory to obtain the mixtures’ shear properties. The SSR in the asphalt concrete (AC) layer was determined for six types of pavement structure with varying asphalt thicknesses. Even though the results of SSR agree with the result of tensile strength ratio (TSR) for the two base mixtures, the SSR values of the three surface mixtures are significantly different while the TSR values are similar, thus, SSR is more sensitive to moisture effect than TSR. Furthermore, the Model Mobile Load Simulator (MMLS3) was conducted on different types of compacted slabs. It was found that the results of MMLS3 and SSR show a good correlation for both surface and base mixtures. This proves the effectiveness of SSR as an indicator for evaluating the moisture susceptibility of asphalt mixtures for the entire AC layer.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Infrastructure Maintenance and Monitoring · Transport Systems and Technology
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil and Environmental Engineering, Sejong University, Seoul, Republic of Korea
Faculty of Transportation Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh, Vietnam
Highway Pavement Research Division, Korea Institute of Civil Engineering and Building Technology, Goyang, Republic of Korea
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