Search for dissertations about: "rheometer"

Showing result 1 - 5 of 21 swedish dissertations containing the word rheometer.

  2. 1. Accurate multiaxial rheometry of soft compressible solids

    Author : Mårten Alkhagen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shear; rheometer; compression; stiffness; triaxial load cell; stress transducer; stress measurement; paralell plates; edge efect;

    Abstract : .... READ MORE

  4. 2. Form pressure generated by self-compacting concrete : influence of thixotropy and structural behaviour at rest

    Author : Peter Billberg; Johan Silfwerbrand; Kamal Khayat; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; self-compacting concrete; thixotropy; structural build-up; form pressure; rheometer; viscometer; instrumented pressure tube; Building engineering; Byggnadsteknik;

    Abstract : Self-compacting concrete (SCC) offers rational and fast casting process since it merely has to be poured, or pumped, into the formwork without any compaction work needed. But this can be at the cost of high form pressure. However, reported results show that SCC can act thixotropically, i.e. READ MORE

  5. 3. Computational studies of flow in Couette Rheometer and particle interaction in non-Newtonian fluids

    Author : Naser Hamedi; Strömningsteknik; []
    Keywords : Non-Newtonian fluids; Correction factor; Fluid properties; Couette Rheometer; Particle interaction; Sedimentation; Computational Fluid dynamics; Plug flow; Herschel Bulkley; Power-law fluid; Immeresed boundary method;

    Abstract : This work aims to study the flow of non-Newtonian fluids and has two main goals. First, the power-law and Herschel Bulkley fluids are studied in a Couette rheometer. Second, the static and dynamic interaction of dual particles in power-law fluid are investigated. READ MORE

  6. 4. Sample preparation effect on measured rheological properties of bitumen using Dynamic Shear Rheometer

    Author : Maya Sheidaei; Trafik och väg; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bitumen rheology; dynamic shear rheometer; complex modulus;

    Abstract : Through improved bitumen characterization, which will increase the road'sdurability, stability, and performance, pavement engineering can apply thesustainability notion that should be followed in all disciplines nowadays. The newtechniques distinguish between the rheological properties of bituminous binders as a function of loading time and temperature to depict real-world behavior rather than only considering empirical properties. READ MORE

  7. 5. Application of Chemical Additives in Minerals Beneficiation – Implications on Grinding and Flotation Performance

    Author : Vitalis Chipakwe; Saeed Chehreh Chelgani; Jan Rosenkranz; Tommy Karlkvist; Irina Chernyshova; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy; Grinding aid; Flowability; Dry grinding; FT4 Powder Rheometer; Surface properties; Rheology; Flotation; Polymers; Surface chemistry; Green Chemistry; Mineral Processing; Mineral Processing; Mineralteknik;

    Abstract : The application of chemical additives, known as grinding aids (GAs), dates to 1930 in the cement industry. Unlike the cement industry, where the use of GAs is in the final processing step, it could be one of the first processing steps in ore beneficiation. READ MORE