Sökning: "Mixture morphology"

Visar resultat 1 - 5 av 51 avhandlingar innehållade orden Mixture morphology.

  1. 1. Ageing of Asphalt Mixtures Micro-scale and mixture morphology investigation

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Prabir Kumar Das; KTH.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ageing; Aggregate packing; Atomic force microscopy; Asphalt mixture; Bitumen; Diffusion; Finite element analysis; Gradation; Micro-structure; Mixture morphology; Oxidative ageing; Surface ageing;

    Sammanfattning : 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. LÄS MER

  2. 2. Heterogeneous Film-Forming Latexes : Preparation - Morphology - Mechanical Properties

    Detta är en avhandling från Department of Chemical Engineering, Lund University

    Författare :Ola Karlsson; Lund University.; Lunds universitet.; [1997]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; core-shell; particle morphology; heterogeneous latexes; particle size; crosslinking; hydrophilicity; poly isoprene-co-styrene-co-methacrylic acid ; monomer partitioning; internal particle viscosity; transmission electron microscopy TEM ; calorimetric reactor; two-stage; seeded emulsion polymerization; film morphology; mechanical properties; paper coating.; Polymer technology; biopolymers; Polymerteknik;

    Sammanfattning : This thesis describes the preparation of heterogeneous latexes, which may serve as binders in coating applications, and the characterization of these. The latexes were prepared in two-stage seeded emulsion polymerization. LÄS MER

  3. 3. Development of a Morphology-based Analysis Framework for Asphalt Pavements

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Ibrahim Onifade; KTH.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Morphology; damage; X-ray computed tomography; top-down cracking; fracture; Morfologi; skador; röntgendatortomografi; ’top-down’sprickbildning; fraktur; Civil and Architectural Engineering; Byggvetenskap; Materials Science and Engineering; Teknisk materialvetenskap;

    Sammanfattning : The morphology of asphalt mixtures plays a vital role in their properties and behaviour. The work in this thesis is aimed at developing a fundamental understanding of the effect of the asphalt morphology on the strength properties and deformation mechanisms for development of morphology-based analysis framework for long-term response prediction. LÄS MER

  4. 4. Influence of waxes on bitumen and asphalt concrete mixture performance

    Detta är en avhandling från Stockholm : KTH

    Författare :Ylva Edwards; KTH.; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bitumen; asphalt; additives; wax in bitumen; polyphosphoric acid in bitumen; rheology; IR-spectroscopy; dynamic mechanic analysis DMA ; bending beam rheometer BBR ; literature study; low temperature physical hardening; highway materials; morphology; modified bitumens; temperature susceptibility; low temperature performance; ageing; microscopy; chromatography; Fourier transform infrared spectroscopy; force ductility; conventional binder tests; asphalt performance; tensile strain restrained specimen test TSRST ; TECHNOLOGY Civil engineering and architecture Building engineering; TEKNIKVETENSKAP Samhällsbyggnadsteknik och arkitektur Byggnadsteknik;

    Sammanfattning : 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. LÄS MER

  5. 5. Fundamental Studies on Molecularly Imprinted Materials

    Detta är en avhandling från Växjö : Linnaeus University Press

    Författare :Kerstin Golker; Linnéuniversitetet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemometrics; molecular dynamics; molecularly imprinted polymer; molecular imprinting; morphology; polymer; principal component analysis;

    Sammanfattning : The thesis focuses on fundamental studies aimed at elucidating factors that influence molecularly imprinted polymer (MIP) formation and ligand recognition. To this end, a series of computational techniques, in particular chemometrics and molecular dynamics (MD) in conjunction with polymer synthesis and physical characterization studies have been employed. LÄS MER