Sökning: "air voids"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden air voids.

  1. 1. Vibrationspåverkan på färsk betongs hållfasthet : En studie av vibrationens inverkan på färsk betong och dess effekt på hållfastheten i det härdade stadiet.

    Uppsats för yrkesexamina på grundnivå, Karlstads universitet

    Författare :Abdulahi Ukash Sugow; [2023]
    Nyckelord :Betong; vibrering; vibrationspåverkan;

    Sammanfattning : Concrete is a durable and long-lasting material that plays an important role in many areas of application such as infrastructure and housing. In order for the fresh concrete to have good stability and meet the desired strength and durability requirements, it needs to be well processed so that it fills the form and encloses the reinforcement well. LÄS MER

  3. 2. Developing a Test Method to Evaluate the Blackout Effect of Uncoated Curtains at Varying Angles

    Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Sara Muminovic; Christina Lindén; [2023]
    Nyckelord :Blackout effect; blackout curtain; uncoated woven curtains; angle interval; light transmission; light box; light diffuser; microscopic image analysis;

    Sammanfattning : This study aimed to explore the integration of varying angles in small-scale measurements and assess the light transmission performance of uncoated curtains. A total of four curtains were evaluated: blackout curtain samples 1 and 2 had a weft satin structure, while daytime curtain samples 3 and 4 consisted of a twill structure. LÄS MER

  4. 3. 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

  5. 4. Användning av den vattenbaserade emulsionspolymeren för utveckling avspecifika egenskaper hos tegel och betong: syntes och karakterisering

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Shahab Nasr; [2022]
    Nyckelord :Water-based acrylic styrene emulsion polymerization; Coating; Nanocomposites; Concrete; Brick;

    Sammanfattning : Improvement properties of building materials are essential. In this dissertation thesis, the main concern had been on synthesizing a new resin to improve the properties of concrete and brick. Solvent-based polymers have been used for many years to improve the quality of building materials. LÄS MER

  7. 5. Koltrasten

    Kandidat-uppsats, KTH/Arkitektur

    Författare :Kristoffer Nyberg; [2022]
    Nyckelord :Alberga; Eskilstuna; landsbygd; folkets hus; kulturhus; allaktivitetshus; bilverkstad; flexibilitet; fackverk; KL-trä; skivor; giftfritt; ekologisk hållbarhet; naturtyper; shou sugi ban; bio-cement; grästak; plintgrund; pelare;

    Sammanfattning : The Blackbird is an all-activity house designed and programmed according to the culture in the countryside. The cornerstones of the project is the construction that allows for a flexible interior and the pursuit of reaching total ecological sustainability. LÄS MER