Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.

Thesis (Ph.D)--Civil and Environmental Engineering, Georgia Institute of Technology, 2008. / Committee Chair: Santamarina, J. Carlos; Committee Member: Burns, Susan; Committee Member: Frost, David; Committee Member: Mitchell, James; Committee Member: Rix, Glenn; Committee Member: Sobecky, Patricia.

Thesis (doctor)--Technische Universiteit Delft, 1997. / Vita. Includes bibliographical references.

Thesis (DR. P.H.)--University of Michigan.

Thesis (Ph. D.)--University of Hawaii at Manoa, 2003. / Includes bibliographical references (leaves 94-99).

Thesis (Ph.D.) - University of Queensland, 2006. / CD-ROM has title : The testural [sic] effects of multiphase mineral systemsin liberation measurement. Includes bibliography.

Thesis (Ph.D.)--York University, 2005. Graduate Programme in Chemistry. / Typescript. Includes bibliographical references (leaves 218-227). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pNR11557

In this dissertation the effects of different types of Pulverized Fuel Ash (PF A)-types on the workability of cementitious pastes containing relative large amounts of PF A were investigated. The different types of PF A were produced at the same source thus they were chemically similar but differed in terms of average particle size and size distribution (grading). By using a two-point measurement technique based on flow through a J-shaped tube it was possible to detect relative small differences in workability between pastes. It was found and concluded that the different types of PFA had a significant effect on the workability of pastes containing cement and PFA as well as PF A alone. The physical differences between the PF A-types were quantified and their effects on workability investigated. It was concluded that PF A with a broader particle size distribution range produced pastes with higher workability at constant water content. It was found that compressive strength as measured after 28 days were solely a function of the water/cementitious ratio for the curing regime employed. It was concluded that for curing conditions used the type of PF A used could have a significant effect on compressive strength when constant workability is required. / Dissertation (MSc (Transportation))--University of Pretoria, 2006. / Civil Engineering / unrestricted

Thesis. 1977. Sc.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND LINDGREN. / Vita. / Includes bibliographies. / Sc.D.

The knowledge of particle size and size distribution are important parameters for understanding the behavior of numerous colloid systems. These areas include for example, clays, viruses, paints and blood. Until recently this information could be obtained only by the use of expensive, slow and complex instrumentation. Hydrodynamic chromatography provides a means of investigating particles in the submicron and micron region. The separation mechanism of this method is based upon the flow parameters with which the solute particles interact as they pass through a packed column. In the past the interpretation of these chromatograms has been based upon the mathematical modeling of the column parameters. We have developed a new multiwavelength detector system to be used in conjunction with hydrodynamic chromatography which provides size and concentration information of the eluant directly. The result is a rugged system that provides size and size distribution information rapidly and at low cost. / Ph. D.