University of Twente Student Theses
Shifting paradigms: Process quality as an indicator for asphalt quality.
Zande, ir. B.H. van der (2024) Shifting paradigms: Process quality as an indicator for asphalt quality.
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| Abstract: | In the evolving field of asphalt construction, the focus on maintaining control over the construction process has intensified as client expectations for better-performing, longer-lasting roads rise. Contractors now face the challenge of ensuring high-quality asphalt while managing increasingly complex construction processes. This thesis explores how monitoring the construction process can be integrated into Quality Control (QC) and Quality Assurance (QA) systems, using process quality as an indicator of final product quality. The research combines three methodologies—Hightech = LowCost (HTLC), Functioneel Opleveren (FO), and Kwaliteitsborging (KB)—into a framework for systematically verifying product quality through continuous process monitoring. A Delphi study identified critical process parameters, which were monitored during an asphalt construction case study using the ASPARi PQi methodology. Product quality was then assessed by analyzing asphalt cores, focusing on density, stiffness, water sensitivity, fatigue resistance, and resistance to deformation. The results revealed moderate to strong correlations between process parameters and product quality, particularly in achieving target density and mechanical properties. However, some parameters showed weaker correlations. The thesis suggests that further development of these methodologies could lead to a more proactive, data-driven QC/QA system, reducing the industry’s reliance on destructive testing and setting new standards for asphalt construction quality control. |
| Item Type: | Essay (Master) |
| Clients: | Ballast Nedam Road Specialties, Leerdam, Netherlands BAM, Culemborg, Netherlands Dura Vermeer, Eemnes, Netherlands |
| Faculty: | ET: Engineering Technology |
| Subject: | 56 civil engineering |
| Programme: | Construction Management and Engineering MSc (60337) |
| Link to this item: | https://purl.utwente.nl/essays/104314 |
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