Search for dissertations about: "asphalt mixture"
Showing result 1 - 5 of 20 swedish dissertations containing the words asphalt mixture.
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1. Ageing of Asphalt Mixtures : Micro-scale and mixture morphology investigation
Abstract : There are many variables that affect the viscoelastic properties of asphalt mixtures with time, among which age hardening may be considered one of the important ones. Age hardening of asphalt mixtures is an irreversible process, which contributes to a reduction of the durability of pavements and eventually increases the maintenance cost. READ MORE
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2. Influence of waxes on bitumen and asphalt concrete mixture performance
Abstract : This doctoral thesis consists of a literature review, presented in two papers, and another six papers describing experimental studies of the influence of different kinds of wax and polyphosporic acid on bitumen and asphalt concrete mixture properties. The literature review should give an extensive description of the field of knowledge concerning wax in bitumen. READ MORE
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3. Gradation-Based Framework for Asphalt Mixtures
Abstract : Asphalt mixture microstructure is formed by aggregates, bitumen binder and air voids. Aggregates make for up to 90% of the mixtures volume and the structure formed by them will depend mostly on their size distribution and shape. READ MORE
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4. Influence of aggregates on permanent deformation of asphalt
Abstract : One of the most common failure modes for asphalt pavements is the occurrence of permanent deformation on the wheel path. This leads to not only other distresses, such as potholes and stripping, but also decreases substantially road safety and increases maintenance costs. READ MORE
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5. Evaluation of Asphalt Field Cores with Simple Performance Tester and X-ray Computed Tomography
Abstract : The importance of aggregate structure and air voids distribution for asphalt mixture rutting and cracking performance has been well established on the basis of experience and is well documented in the literature. Past and current investigations are limited to assessment of performance based on macroscopic behavior due to the difficulty associated with the quantitative measurement and analysis of the internal structure of asphalt mixtures. READ MORE