Sökning: "porous asphalt drilled cores"

Hittade 3 uppsatser innehållade orden porous asphalt drilled cores.

  1. 1. Assessment of aggregate structure in porous asphalt using X-ray computed tomography

    Master-uppsats, KTH/Väg- och banteknik

    Författare :Mari Haagenrud Matsson; Malex Love Valdemar Åkerblom; [2023]
    Nyckelord :Tomography; non-destructive testing; destructive testing; air voids content; aggregate size distribution; porous asphalt;

    Sammanfattning : X-ray computed tomography is a technique that has been successfully utilized to characterize internal microstructure of asphalt mixtures. The city of Linköping (Sweden) developed an action plan to reduce noise; accordingly KTH and VTI developed a method to determine air void content in porous asphalt using x-ray computed tomography and an image processing software called ImageJ. LÄS MER

  3. 2. Investigation of Air Void Structure in Double Layer Porous asphalt based on X-ray Computed Tomography

    Master-uppsats, KTH/Byggvetenskap

    Författare :Shuchen Gong; [2020]
    Nyckelord :Tomography; non-destructive testing; destructive testing; air voids content; porous asphalt drilled cores;

    Sammanfattning : The X-ray computed tomography is a technology to investigate air void structure of drilled asphalt cores, which provides a non-destructive alternative to traditional laboratory methods, usually destructive testing.In this work, six in-situ specimens from a double layer porous asphalt pavement in Linköping, Sweden, were taken and analysed using both qualitative and quantitative methods of tomography. LÄS MER

  4. 3. Porous Asphalt Clogging Performance Under Swedish Conditions

    Master-uppsats, KTH/Byggvetenskap

    Författare :Fuad Ahmed; [2015]
    Nyckelord :Air voids; clogging; noise; porous asphalt; X-ray; maintenance; Hålrum; igensättning; buller; bullerreducerande beläggning; tomografi; rengöring;

    Sammanfattning : Porous asphalt has gradually gained a lot of popularity in the past ten years for its ability to reduce traffic noise, especially noise generated between tire and road surface. The acoustical absorption properties are mainly due to the pore structure and the texture of the mixture. LÄS MER