Abstract: An aggregate particle shield for use as a wearliner or the like, in aggregate material transport devices such as line vibrating feeders, discharge chutes, or the like having a multiplicity of ceramic plugs upstanding in a polyurethane bed and arranged in a predetermined pattern. The ceramic plugs are interconnected, with every plug in each row of the predetermined pattern linked by a connecting wire, and present their upper surfaces for impact with the aggregate particles. The impact plugs may be formed in various shapes to resist becoming dislodged from the polyurethane bed.