Asphalt and concrete reclamation machines are used to cut roadways when a repair is required. The performance of these machines can affect the quality of road repairs, and cost/profitability for both contractors and governments. We believe that several performance characteristics in reclamation machines are governed by the placement and pattern of cutting picks on the cutter head. Previous studies, focused on mining and excavation applications, have shown strong correlation between placement and wear. The following study employs a screening experiment (observational study) to find significant contributors to tool wear, in applications of asphalt milling or reclamation. We have found that picks fail by two primary modes: tip breakage, and body abrasive wear. Results indicate that the circumferential spacing of a bit, relative to neighboring bits, has the strongest effect on tip breakage. We have also shown that bit skew angle has a large positive effect on body abrasive wear.
","abstract_html":"<p>Asphalt and concrete reclamation machines are used to cut roadways when a repair is required. The performance of these machines can affect the quality of road repairs, and cost/profitability for both contractors and governments. We believe that several performance characteristics in reclamation machines are governed by the placement and pattern of cutting picks on the cutter head. Previous studies, focused on mining and excavation applications, have shown strong correlation between placement and wear. The following study employs a screening experiment (observational study) to find significant contributors to tool wear, in applications of asphalt milling or reclamation. We have found that picks fail by two primary modes: tip breakage, and body abrasive wear. Results indicate that the circumferential spacing of a bit, relative to neighboring bits, has the strongest effect on tip breakage. We have also shown that bit skew angle has a large positive effect on body abrasive wear.</p>","abstract_has_math":false,"creators":["Taylor, Matthew H."],"institution":"Brigham Young University - Provo","degree_name":"MS","degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T01:29:03Z","subjects":["asphalt","reclamation","milling","conical","attack","pick","bit","lacing","pattern","life","wear","observational study","Poisson","regression","Mechanical Engineering"],"languages":["English"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarsarchive.byu.edu/etd/1293","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Taylor, Matthew H."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2006-11-30T08:00:00Z"]},{"key":"dc:publisher","label":"Institution","values":["Brigham Young University - Provo"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["asphalt","reclamation","milling","conical","attack","pick","bit","lacing","pattern","life","wear","observational study","Poisson","regression","Mechanical Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarsarchive.byu.edu/etd/1293","https://scholarsarchive.byu.edu/context/etd/article/2292/viewcontent/ETD_CISOPTR_1297.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Ira A. Fulton College of Engineering and Technology; Mechanical Engineering"]},{"key":"dc:description.abstract","label":"Abstract","values":["Asphalt and concrete reclamation machines are used to cut roadways when a repair is required. The performance of these machines can affect the quality of road repairs, and cost/profitability for both contractors and governments. We believe that several performance characteristics in reclamation machines are governed by the placement and pattern of cutting picks on the cutter head. Previous studies, focused on mining and excavation applications, have shown strong correlation between placement and wear. The following study employs a screening experiment (observational study) to find significant contributors to tool wear, in applications of asphalt milling or reclamation. We have found that picks fail by two primary modes: tip breakage, and body abrasive wear. Results indicate that the circumferential spacing of a bit, relative to neighboring bits, has the strongest effect on tip breakage. We have also shown that bit skew angle has a large positive effect on body abrasive wear.
"]},{"key":"dc:format","label":"Dc Format","values":["application:pdf"]},{"key":"dc:source","label":"Dc Source","values":["Brigham Young University - Provo"]},{"key":"dc:title","label":"Title","values":["Defining a Model for Tool Consumption Rate on Asphalt Reclamation Machines"]}]}],"canonical_facts":{"dc:creator":["Taylor, Matthew H."],"dc:date":["2006-11-30T08:00:00Z"],"dc:description":["Ira A. Fulton College of Engineering and Technology; Mechanical Engineering"],"dc:description.abstract":["Asphalt and concrete reclamation machines are used to cut roadways when a repair is required. The performance of these machines can affect the quality of road repairs, and cost/profitability for both contractors and governments. We believe that several performance characteristics in reclamation machines are governed by the placement and pattern of cutting picks on the cutter head. Previous studies, focused on mining and excavation applications, have shown strong correlation between placement and wear. The following study employs a screening experiment (observational study) to find significant contributors to tool wear, in applications of asphalt milling or reclamation. We have found that picks fail by two primary modes: tip breakage, and body abrasive wear. Results indicate that the circumferential spacing of a bit, relative to neighboring bits, has the strongest effect on tip breakage. We have also shown that bit skew angle has a large positive effect on body abrasive wear.
"],"dc:format":["application:pdf"],"dc:identifier":["https://scholarsarchive.byu.edu/etd/1293","https://scholarsarchive.byu.edu/context/etd/article/2292/viewcontent/ETD_CISOPTR_1297.pdf"],"dc:language":["English"],"dc:publisher":["Brigham Young University - Provo"],"dc:source":["Brigham Young University - Provo"],"dc:subject":["asphalt","reclamation","milling","conical","attack","pick","bit","lacing","pattern","life","wear","observational study","Poisson","regression","Mechanical Engineering"],"dc:title":["Defining a Model for Tool Consumption Rate on Asphalt Reclamation Machines"],"dc:type":["Thesis"],"thesis:degree_name":["MS"]},"updated_at":"2026-07-24T01:29:03Z"}