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Lewis, Jennifer A. Desai, Priyadarshi Gautam 2015-09-25T20:53:29Z 2015-09-25T20:53:29Z 10000-01-01 1997 1997 The following hypothesis was developed on the basis of experimental observations of Al$\sb2$O$\sb3$-substituted organocement composites. Moisture absorption and transport occurs through the bulk polymer regions; this process combined with further hydration of unreacted cement grains promotes property degradation. Processing constraints prevented complete reduction of the unreacted cement phase in the Al$\sb2$O$\sb3$-substituted composites. Hence, organocement composites with tailored microstructures derived from CaAl$\sb2$O$\sb4$-coated Al$\sb2$O$\sb3$ microcomposite powders were fabricated. These composites contained a negligible amount of unreacted CaAl$\sb2$O$\sb4$ and a moderate reduction in bulk polymer content and exhibited initial strengths comparable to those reported for conventional organocements. These composites did not exhibit significant improvement in moisture sensitivity. Hence, degradation effects stemming from the presence of unreacted cement appeared to be of secondary importance to controlling the moisture sensitivity of these composites. Made available in DSpace on 2015-09-25T20:53:29Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9812573.pdf: 4296403 bytes, checksum: 0e68c911d7059640736915f691f52995 (MD5) Previous issue date: 1997 Embargo set by: Seth Robbins for item 84165 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 169 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1997. http://hdl.handle.net/2142/82884 (MiAaPQ)AAI9812573 eng Engineering, Materials Science Processing-Structure-Property Relations in Novel Organocement Composites text Materials Science and Engineering Materials Science and Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.