{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/125151"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/125151","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Quality Assurance for Chip Seals Using Mean Profile Depth","abstract":"Chip sealing has numerous benefits as a pavement preservation treatment. The quality of the chip seal is assessed through various parameters, including texture depth, skid resistance, and visual evaluation. Current practice reveals that transportation agencies conduct quality assurance after construction, while contractors are typically responsible for chip seal placement and quality control. However, existing quality assurance procedures predominantly depend on visual inspection, and lack well-established methodologies. This study used Mean Profile Depth (MPD) as a macrotexture metric for the quality assurance of chip seals. Field data were collected using state-of-the-art equipment from the Virginia Department of Transportation (VDOT) area. Considering both qualitative (visual assessment) and quantitative (MPD analysis) approaches, this study delineates definitive categories representative of chip seal quality. These categories included good quality chip seals, with minimal to no signs of flushing and aggregate loss and MPD values ranging from 1 to 1.2 mm. Fair-quality seals had MPD values between 0.6 and 1 mm, while poor-quality seals were identified with MPD values below 0.6 mm. This structured classification enhances preventive maintenance strategies, improving chip seal pavements' overall sustainability and longevity.","abstract_html":"Chip sealing has numerous benefits as a pavement preservation treatment. The quality of the chip seal is assessed through various parameters, including texture depth, skid resistance, and visual evaluation. Current practice reveals that transportation agencies conduct quality assurance after construction, while contractors are typically responsible for chip seal placement and quality control. However, existing quality assurance procedures predominantly depend on visual inspection, and lack well-established methodologies. This study used Mean Profile Depth (MPD) as a macrotexture metric for the quality assurance of chip seals. Field data were collected using state-of-the-art equipment from the Virginia Department of Transportation (VDOT) area. Considering both qualitative (visual assessment) and quantitative (MPD analysis) approaches, this study delineates definitive categories representative of chip seal quality. These categories included good quality chip seals, with minimal to no signs of flushing and aggregate loss and MPD values ranging from 1 to 1.2 mm. Fair-quality seals had MPD values between 0.6 and 1 mm, while poor-quality seals were identified with MPD values below 0.6 mm. This structured classification enhances preventive maintenance strategies, improving chip seal pavements' overall sustainability and longevity.","abstract_has_math":false,"creators":["Tsogt-Ochir, Norovbanzad"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Civil Engineering","degree_department":"Civil and Environmental Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":["Flintsch, Gerardo W."],"committee_members":["Izeppi, Edgar D. de Leon","Trani, Antonio A."],"year":2024,"date_issued":"2024-09-20","date_published":"2024-09-20","updated_at":"2026-07-22T22:20:41Z","subjects":["Chip seals","Quality assurance","Quality control","Macrotexture"],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10919/125151","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeechair","label":"Committee Chair","values":["Flintsch, Gerardo W."]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Izeppi, Edgar D. de Leon","Trani, Antonio A."]},{"key":"dc:contributor.department","label":"Department","values":["Civil and Environmental Engineering"]},{"key":"dc:creator","label":"Author","values":["Tsogt-Ochir, Norovbanzad"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-04-04T19:17:04Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-04-04T19:17:04Z"]},{"key":"dc:date.issued","label":"Date","values":["2024-09-20"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Tech"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Chip seals","Quality assurance","Quality control","Macrotexture"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/10919/125151"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Chip sealing has numerous benefits as a pavement preservation treatment. The quality of the chip seal is assessed through various parameters, including texture depth, skid resistance, and visual evaluation. Current practice reveals that transportation agencies conduct quality assurance after construction, while contractors are typically responsible for chip seal placement and quality control. However, existing quality assurance procedures predominantly depend on visual inspection, and lack well-established methodologies. This study used Mean Profile Depth (MPD) as a macrotexture metric for the quality assurance of chip seals. Field data were collected using state-of-the-art equipment from the Virginia Department of Transportation (VDOT) area. Considering both qualitative (visual assessment) and quantitative (MPD analysis) approaches, this study delineates definitive categories representative of chip seal quality. These categories included good quality chip seals, with minimal to no signs of flushing and aggregate loss and MPD values ranging from 1 to 1.2 mm. Fair-quality seals had MPD values between 0.6 and 1 mm, while poor-quality seals were identified with MPD values below 0.6 mm. This structured classification enhances preventive maintenance strategies, improving chip seal pavements' overall sustainability and longevity."]},{"key":"dc:description.abstractgeneral","label":"General Abstract","values":["This thesis examines the quality of chip seals, an important aspect of road surface treatment that involves the application of one or more layers of specific aggregates and asphalt binders. The quality of chip seals was examined using macrotexture which is the larger-scale texture of the pavement. Macrotexture is one of the key properties of safety that significantly influences tire-road interactions especially when there is water presence on the pavement. Consistent and less varied macrotexture values on chip seals offer a reliable metric for evaluating pavement quality. By focusing on macrotexture measurement and visual inspection, this thesis effectively differentiates between good and poor-quality chip seals, fostering a nuanced understanding of potential construction and practice-related issues. This insight aims to inspire improvements in chip seal applications, promoting enhanced road safety and performance for all users."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["ETD"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Quality Assurance for Chip Seals Using Mean Profile Depth"]}]}],"canonical_facts":{"dc:contributor.committeechair":["Flintsch, Gerardo W."],"dc:contributor.committeemember":["Izeppi, Edgar D. de Leon","Trani, Antonio A."],"dc:contributor.department":["Civil and Environmental Engineering"],"dc:creator":["Tsogt-Ochir, Norovbanzad"],"dc:date.accessioned":["2025-04-04T19:17:04Z"],"dc:date.available":["2025-04-04T19:17:04Z"],"dc:date.issued":["2024-09-20"],"dc:description.abstract":["Chip sealing has numerous benefits as a pavement preservation treatment. The quality of the chip seal is assessed through various parameters, including texture depth, skid resistance, and visual evaluation. Current practice reveals that transportation agencies conduct quality assurance after construction, while contractors are typically responsible for chip seal placement and quality control. However, existing quality assurance procedures predominantly depend on visual inspection, and lack well-established methodologies. This study used Mean Profile Depth (MPD) as a macrotexture metric for the quality assurance of chip seals. Field data were collected using state-of-the-art equipment from the Virginia Department of Transportation (VDOT) area. Considering both qualitative (visual assessment) and quantitative (MPD analysis) approaches, this study delineates definitive categories representative of chip seal quality. These categories included good quality chip seals, with minimal to no signs of flushing and aggregate loss and MPD values ranging from 1 to 1.2 mm. Fair-quality seals had MPD values between 0.6 and 1 mm, while poor-quality seals were identified with MPD values below 0.6 mm. This structured classification enhances preventive maintenance strategies, improving chip seal pavements' overall sustainability and longevity."],"dc:description.abstractgeneral":["This thesis examines the quality of chip seals, an important aspect of road surface treatment that involves the application of one or more layers of specific aggregates and asphalt binders. The quality of chip seals was examined using macrotexture which is the larger-scale texture of the pavement. Macrotexture is one of the key properties of safety that significantly influences tire-road interactions especially when there is water presence on the pavement. Consistent and less varied macrotexture values on chip seals offer a reliable metric for evaluating pavement quality. By focusing on macrotexture measurement and visual inspection, this thesis effectively differentiates between good and poor-quality chip seals, fostering a nuanced understanding of potential construction and practice-related issues. This insight aims to inspire improvements in chip seal applications, promoting enhanced road safety and performance for all users."],"dc:description.degree":["Master of Science"],"dc:format.medium":["ETD"],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["https://hdl.handle.net/10919/125151"],"dc:language.iso":["en"],"dc:publisher":["Virginia Tech"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:subject":["Chip seals","Quality assurance","Quality control","Macrotexture"],"dc:title":["Quality Assurance for Chip Seals Using Mean Profile Depth"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Civil Engineering"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:20:41Z"}