Masters Theses


“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.


Chandrashekhara, K.

Committee Member(s)

Flanigan, V. J.
Kapila, Shubhender


Mechanical and Aerospace Engineering

Degree Name

M.S. in Aerospace Engineering


The funding of this project was provided by the Environmental Improvement and Energy Resources Authority (EIERA). Partial support from Missouri IncuTech Foundation is gratefully acknowledged.


University of Missouri--Rolla

Publication Date

Fall 2002


viii, 29 pages

Note about bibliography

Includes bibliographical references (page 28).


© 2002 Timothy Shanahan Moran, All rights reserved.

Document Type

Thesis - Restricted Access

File Type




Subject Headings

Composite materials
Roofing, Bituminous -- Recycling

Thesis Number

T 8183

Print OCLC #


Link to Catalog Record

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