Date of Award
Mechanical, Automotive, and Materials Engineering
Watt, D. F.,
Engineering, Materials Science.
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The use of polymer composite materials for large body panels in automobiles has created an environmental problem; these materials are not degradable nor are they recyclable. The objective of this project is to change this kind of material into an admixture to concrete that would enhance the properties of the concrete, and at the same time solve an environmental problem. Experimental results show that adding pyrolysed sheet molding compound (PSMC) residue to cement mortar can lead to an increase in the compressive strength of mortar. The improvement in strength is more significant in later ages than in early ages. Scanning electron microscopy and X-ray diffraction studies reveal that PSMC has changed the microstructure of mortar and interfered with the cement hydration processes. The improvement of strength is believed to be due to both the physical nature and the pozzolanic properties of PSMC. Compared with other pozzolans used in concrete such as fly ash and condensed silica fume, it is concluded that PSMC has similar physical and chemical characteristics, and so there is a strong potential to develop a new pozzolanic admixture for concrete by pyrolysis of sheet molding compound. This may represent an economic solution to the disposal of large polymer automotive panels made from SMC.Dept. of Mechanical, Automotive, and Materials Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1992 .X955. Source: Masters Abstracts International, Volume: 31-03, page: 1350. Supervisor: D. F. Watt. Thesis (M.A.Sc.)--University of Windsor (Canada), 1991.
Xu, Jian Zhou., "Recycling of sheet molding compound as a concrete admixture." (1991). Electronic Theses and Dissertations. 3288.