An Experimental Study in the Mechanical Response of Polymer Modified Geopolymers
Abstract
The objective of this project was to evaluate the effect of low molecular weight of Poly Ethylene Glycol (PEG), Carboxy Methyl Cellulose (CMC) on metakaolin and F type fly ash sodium based geopolymers in their mechanical response. It was found that adding 22.5% per weight of a Carboxyl Methyl Cellulose solution to metakaolin geopolymers over a mesh of cheesecloth modifies the elastic modulus producing a plate with enhanced flexibility. This effect was not observed when randomly dispersed fibers were used in the same formulation. The addition of randomly dispersed fibers such as cotton and Poly Vinyl Alcohol increased the bending and compressive strength of geopolymers. In the case of fly ash geopolymers, no flexibility was observed in the plates and changes in the viscoelastic properties were not detected. The addition of Carboxy Methyl Cellulose and Poly Ethylene Glycol in fly ash geopolymers enhanced the bending strength but the compressive strength decreased.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2012
- Accession Number
- ADA566163
Entities
People
- Benjamin Valera
Organizations
- Rochester Institute of Technology