Mechanical Properties of Polymer Modified Mortar

The mechanical properties of the polymer-modified mortar are markedly improved over conventional cement mortar. We utilized recycled ABS in powder form and a polymer latex emulsion, polymer percentage ranges from 0 to 25 percent by polymer/cement ratio were investigated. The mechanical properties investigated were compression strength and adhesion strength. Compression strength effects did not have an impact on adhesion strength. Adhesion strength was calculated with pullout testing apparatus designed by the author. Results indicate that recycled ABS had a lower adhesive strength than the acrylic latex emulsion and the base mortar, but did increase in adhesive strength when mixed with maleic-anhydride. The adhesive strength was investigated for a Fiber Reinforced Polymer (FRP) made of an "E" glass fiber that is a continuous strand roving oriented and pre-tensioned longitudinally in an isopthalic polyester matrix material. The FRP rebar was compared to standard steel rebars, and found that the standard steel corrugated rebar had a higher adhesive strength, due to mechanical interlocking. This was clarified by measurements using a smooth steel rebar. Characterization of the polymer-modified mortar was conducted by pore analysis and scanning electron microscopy. Scanning Electron Microscopy was implemented to view the polymer particles, the cement fibrils formed by the hydration, and to prove Ohama's theory of network structure.

Grantor dc:publisher

University of North Texas

Year dc:date

2002

Author dc:creator

• Palos, Artemio

Contributors dc:contributor

• D'Souza, Nandika Anne, 1967-
• Puppala, Anand
• Brostow, Witold, 1934-
• Kozak, Mile
• Reidy, Richard

• Cement composites.
• cement
• FRP
• adhesion
• compression
• recycled ABS

Statement dc:rights

• Use restricted to UNT Community
• Copyright
• Palos, Artemio
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 50777366
https://digital.library.unt.edu/ark:/67531/metadc3173/
ark: ark:/67531/metadc3173

OAI identifier oai:identifier

info:ark/67531/metadc3173