Mechanical properties effect on molarity of epoxy hardener filled with geopolymer materials for piping application: Flexural properties

The effect of molarity on geopolymer materials in epoxy hardener was studied under mechanical testing, which is using the flexural test. A series of epoxy filled with 10%-30% weight percentage geopolymer materials with different molarity which is white clay were prepared. Flexural strength of the epoxy filled geopolymer materials is determined using Instron Universal Testing under flexural mode. It was found that the flexural strength for 4 M samples are increases from 10% weight percentage to 20% weight percentage of geopolymer content. However, flexural properties of white clay with 4 M geopolymer suddenly decrease at 30% weight percentage compared to the samples of 8 M and 12 M, which the strength is continuing to increase with the increasing of weight percentage of geopolymer content. The results indicated that the blending of geopolymer materials in epoxy system can be obtained in this study.