Experimental behaviour of porous concrete

The behaviour of porous concrete was experimentally tested under compressive and static flexural loading. The relationships between the water-cement ratio, concrete density and concrete compressive strengths were analysed. The decrease in the concrete compressive strength can be related to a reduction in the watercement ratio within a concrete mix, which decreased the concrete density, as the presence of voids increased. Under static flexural loading the effect of a point load and uniformly distributed load on a porous concrete tile, reinforced with Glass-Fibre-Reinforced-Polymers (GFRP), showed an increase in the load distribution area increased the loading capacity. Although the settlement of the load cell and time of failure was relatively similar in both cases. Failure of the porous concrete cylinder (Trial Mix 4) and tiles was observed through internal void compaction.