Search for dissertations about: "Gyratory"

Found 4 swedish dissertations containing the word Gyratory.

2. 1. Some Aspects of Foamed Bitumen Technology

   Author : May Namutebi; Björn Birgisson; Umaru Bagampadde; Jonas Ekblad; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Foamed bitumen; Aggregate coating; Rice density; Foam characteristics; Surface energy; Locking concept; Gyratory; Compaction; Optimum moisture content; Other civil engineering and architecture; Övrig samhällsbyggnadsteknik och arkitektur;

   Abstract : Although foamed bitumen has been widely applied in pavement construction some of its aspects are still not yet understood. In this study, some of these aspects including: effects of the foaming process on binder chemistry, characterization of foamed bitumen and development of a rational method to optimize foam characteristics, evaluation of aggregate particle coating within foamed bitumen treated materials, and development of a gyratory compaction procedure for laterite gravels treated with foamed bitumen were addressed. READ MORE

4. 2. Prediction of permanent deformations in asphalt concrete using the mechanistic-empirical pavement design guide

   Author : Erik Oscarsson; Trafik och väg; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; permanent deformation; design guide; asphalt concrete; mechanistic empirical;

   Abstract : Permanent deformations, or rutting, are internationally considered to be one of the most serious distress mechanisms in asphalt pavements. Deterioration modeling is an important tool for performance prediction and diagnostics of pavements. READ MORE

5. 3. An investigation into some aspects for foamed bitumen technology

   Author : May Namutebi; Björn Birgisson; Alvaro Guarin; Umaru Bagampadde; Baoshan Huang; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Foamed bitumen; Binder ageing; Aggregate coating; Compaction; Mix design; Aggregate porosity; Civil and Architectural Engineering; Byggvetenskap;

   Abstract : Despite applications of foamed bitumen technology in pavement construction in various places around the world, there are still several aspects about this technology that are not clear. In addition, knowledge on foamed bitumen technology is mainly empirical and lacks scientific basis. READ MORE

6. 4. Cell interactions in the CNS and their consequences for neuronal apoptosis

   Author : Mikaela Berglund; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Aggregate cultures; apoptosis; automated image analysis; cytochrome c; interactions; JNK; microglia; neuron; neural precursor cells; rotenone; UV.;

   Abstract : The central nervous system consists of an intricate network of neurons and glial cells that depend on reciprocal communication to develop and maintain the vital functions of the brain. if the balance is disturbed by injury or disease, two cell types in particular, microglia and astrocytes, respond by producing factors that help combat the infection or delimit the affected area. READ MORE