Developing a model for estimation of polished stone value (PSV) of road surface aggregates based on petrographic parameters
Source abstract
Abstract
Abstract Micro-texture of road aggregates wears away under traffic action in the course of time and gets polished. Aggregates resistance to polishing and their ability to maintain the micro-texture are measured in the laboratory by polished stone value (PSV). The standard test method for measuring PSV is costly and time consuming. In this study, efforts have been made to develop a model for estimation of PSV. For this purpose, 20 quarries used in road pavements were selected and placed under polishing, physical and mechanical tests. Also, by carrying out the petrographic analysis on thin sections of the rocks, efforts were made to convert the petrographic properties to quantitative variables and use them in inferential modelling. Modelling results showed that PSV can be significantly affected by aggregate hardness and also PSV can be estimated by combination of petrographic parameters. Keywords: aggregatemicro-texturepolished stone valuepetrographymechanical properties Notes 1. ahmady@iust.ac.ir 2. ameri@iust.ac.ir Additional informationNotes on contributorsMahmoud Ahmadinejad 1 Mahmoud Ameri 2
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Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Geotechnical and construction materials studies · Infrastructure Maintenance and Monitoring
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
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