Optimum Percentage of Fly Ash Reinforcement in Vinyl Ester Composites

The previous work of another group of researchers found that the modulus of tension, flexural, and compression increased with increasing percentage by volume of fly ash. They also documented that the viscosity of the composite increased exponentially with increasing percentage by volume of the filler. The viscosity increased sharply when the percentage by volume of reinforcer is between 35 and 50%. They failed to mention the highest percentage by weight of fly ash that could be added to the resin to get the highest mechanical properties while still ensuring that the composite could be cast into molds with ease. This project attempts to find out the optimum percentage by weight of cement hollow spheres (SLG) in vinyl ester resin as far as yield strength, tensile strength, Young's modulus, and Poisson's ratio of the composite are taken into account. The research found that 33% by weight of filler is a favorable and convenient percentage by weight of SLG to use because up to this percentage by weight of reinforcement, the mechanical properties like modulus of tension are increasing with the increase in percentage by weight of filler while at the same time the viscosity is not high enough to prevent ease of casting the composite into molds.


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  • Accession Number: 01151241
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 13 2010 3:39PM