BEHAVIOUR OF GEOPOLYMER FERROCEMENT SLABS SUBJECTED TO IMPACT

Abstract

This paper presents the experimental investigations of the resistance of geopolymermortar slabs to impact loading. For this, specimens of size 230mmx230mmx25mm with 4 layersof chicken mesh 2 layers of rectangular weld mesh and combination of single layer of weld meshand four layers of chicken mesh were cast and subjected to impact loading by drop weight test.The results obtained show that the addition of the above mesh reinforcement has increased theimpact residual strength ratio of geopolymer ferrocement by 4-28 that of the reference plainferrocement mortar slab. The combination of 1 layer of weldmesh and 4 layers of chicken mesh ofgeopolymer ferrocement specimens show the best performance in the test, i.e. energy absorbed,residual impact strength ratio (Irs).It was concluded that the increase in volume fraction ofreinforcement Vr, increases the energy absorption and also residual impact strength ratio ofgeopolymer ferrocement than that of ferrocement specimens.