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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The behaviour of unsaturated compacted naturally occuring gravel

Toll, D. G. January 1988 (has links)
No description available.
22

The use of recycled concrete in construction

Fung, Wing-kun. January 2005 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
23

Sustainable construction and health : developing a quantitative assessment tool /

Wong, Yat-hang, Felix. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references. Also available online.
24

Sustainable construction and health developing a quantitative assessment tool /

Wong, Yat-hang, Felix. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references. Also available in print.
25

Recycled building materials : the likely impact on affordable housing in the Western Cape /

Traut, Michelle. January 1900 (has links)
Thesis (MTech (Built Environment))--Peninsula Technikon, 2001. / Word processed copy. Summary in English. Includes bibliographical references (leaves 139-151). Also available online.
26

Wood materials and shearwalls of older light-frame residential structures /

Carroll, Cameron T. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references. Also available on the World Wide Web.
27

The prediction of industrial noise and its transmission through metal cladding systems

Windle, Richard Michael January 1995 (has links)
No description available.
28

Materiality of glass.

January 2005 (has links)
Tang Sin Ying. / "Architecture Department, Chinese University of Hong Kong, Master of Architecture Programme 2004-2005, design report."
29

Effect of shear-induced breakup and restructuring on the size and structure of aggregates

Marsh, Peter, School of Chemical Engineering & Industrial Chemistry, UNSW January 2005 (has links)
The aim of this work was to use simulation as a tool to better understand areas of orthokinetic (shear-induced) aggregation which are still not well understood. These areas include aggregate structure, aggregate strength, breakup and restructuring and combined perikinetic/orthokinetic aggregation. Previous simulation studies were reviewed and it was concluded that the methodology of Chen and Doi (1989) was an appropriate starting point for this study. The modified simulation was validated by comparison with theoretical and experimental results. Orthokinetic aggregates were found to have a fractal structure with an estimated value of 1.65. Scaling exponents, which were shown to be indicative of fractal dimension, of 2.1-2.7 were also obtained. Flexible bonds allowed restructuring to occur which led to an increase in the co-ordination number, scaling exponent, aggregate strength and a reduction in aggregate size. Thus aggregate strength increases with fractal dimension. It was confirmed that both restructuring and breakup/reformation could lead to the formation of small, compact aggregates. The high shear conditions simulated favoured breakup/reformation, while restructuring was expected to dominate with more flexible bonds, possibly at lower shear rates. Taking some account of hydrodynamic interactions by the inclusion of Kirkwood-Riseman theory led to an increase in the compactness of the aggregates and the co-ordination numbers, as well as a decrease in size of the aggregates. The results showed that hydrodynamic interactions can not be ignored. The explanation for the dramatic effects was that particles/microflocs on the outer edges of the aggregates broke off and reformed in a more compact way. Erosion was found to dominate in all cases, thus supporting the theory that erosion dominates at higher fractal dimensions. The shearing range simulated was found to be relatively high (equivalent to &lt200s-1 for particles of 2-5??m), producing relatively small aggregates. Hence it is proposed that under high shear conditions, erosion dominates. It was shown by extension of the DLCA algorithmic restructuring work of Meakin and Jullien (1988, 1989) that the scattering patterns observed in gently sheared aggregating systems are consistent with the interpretation that the shearing causes partial restructuring at large length scales.
30

An experimental study on the guidelines for using higher contents of aggregate micro fines in Portland cement concrete

Ahn, Nam-shik, January 2000 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references (leaves 315-323). Available also in a digital version from Dissertation Abstracts.

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