“The uses of recycled materials in composites provide the potential for large cost savings and a solution to the ever-growing disposal problem. Shingles contain petroleum based binders and fillers, which can be used as a valuable resource in composite production. Composites offer inherent advantages over traditional materials in regard to corrosion resistance, design flexibility and extended service life. Use of scrap-roofing shingles as a core material in glass fiber reinforced composite profiles offer potential low cost composite products such as sound barrier system, railroad ties and other building materials including blocks. In the present work, processes have been developed for shredding scrap roof shingles, for making shingle blocks, and for filling hollow composite tubes. Mechanical testing was performed to compare the performance of filled composite tubes to hollow composite tubes and oak wood beams. Filled tubes show improvement in ultimate flexural strength by preventing buckling and crushing. Manufacturing of a scaled composite wrapped recycled shingle core railroad tie by hand lay-up was also attempted. Unfortunately the weight of the shingle core prevents the manufacturing of shingle core composite structure by hand lay-up. Tests were also conducted to evaluate the sound attenuation capability of recycled shingle walls. It was observed that the mean sound level at the backside of the wall, measured in decibels, was greatly reduced and shows potential use for recycled shingles in a sound barrier system"--Abstract, page iii.
Flanigan, V. J.
Mechanical and Aerospace Engineering
M.S. in Aerospace Engineering
University of Missouri--Rolla
viii, 29 pages
© 2002 Timothy Shanahan Moran, All rights reserved.
Thesis - Restricted Access
Roofing, Bituminous -- Recycling
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Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu/record=b4983025~S5
Moran, Timothy Shanahan, "Composite structures using asphalt based roofing scrap materials" (2002). Masters Theses. 2274.
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