Static Shear Strength of Single-Lap Joint Using Eggshell-Toughened Epoxy as Adhesive Agent

Eggshells are daily food waste disposed of in landfills, producing environmentalissues and an unpleasant odour. were crushed to form eggshell powder may be suitably applied as a filler epoxy resins improve their mechanical properties. The shear strength toughened with (TEEP) wasstudied. Single-lap joint (SLJ) sheartests conducted toinvestigate the SLJbonded different volume fractionsof TEEP. For this purpose, eggshells dried into particles size 150μm. fraction resin is 0%, 2.5%, 5%, 10% by weight. system was made EPIKOTE Resin 828 Hardener 651 mixing ratio 5:2 weight.The results show that shearstrength greatly depended upon overlap lengthand fractions.The improvement up 72.7% 39.9%,with longest length 5% TEEP fraction.Hence, 38.1 mm gave optimum 5.045 kN.