Date of Award
Civil and Environmental Engineering
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Petrographic properties and other physical properties of fine aggregates, their relationships and their possible effect on the durability of concrete and mortar is presented in this study. Petrographic Number of Sand has been quantified to estimate the durability of fine aggregates for Portland cement and asphaltic concrete works. Forty fine aggregates, taken from various locations in southern Ontario, were used in testing. A statistical analysis of the test results was performed using the SPSS statistical software (SPSS/PC-4.0). From the analysis, it is concluded that as the amount of deleterious material (such as shale, chert and cemented particles) in the sand increases, the micro-deval abrasion loss (MDA) increases. Freeze-thaw loss factor (FTF) depends on the aggregate cement bond. The good aggregate-cement bond can be attributed to surface roughness and angularity of manufactured carbonate sand particles. It is also found that the micro-deval abrasion test is consistent and reliable because the present test results correlated well with previous test results on natural sand samples from the same locations. Also petrographic analysis is very useful in predicting the quality of natural sands (fine aggregates). (Abstract shortened by UMI.)Dept. of Geology and Geological Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1993 .B638. Source: Masters Abstracts International, Volume: 32-02, page: 0716. Adviser: Peter Hudec. Thesis (M.A.Sc.)--University of Windsor (Canada), 1993.
Boateng, Samuel., "Petrographic analysis and durability of fine aggregates." (1993). Electronic Theses and Dissertations. 3074.