Question

Shall layer of wearing course or additional thickness be designed on surface of piers?

Answer

In designing of piers, considerations have to be given to effect of wearing action caused by passengers, other traffics and even vehicles. In maritime atmosphere, strength and integrity of concrete is detrimental to servicing life of piers as it acts an essential barrier to chloride attack. Though, in view of these gradual wear and tear generated by loading traffic, a number of forms of surface protection have to be provided on top of pier surface like wearing course, additional increase in concrete cover.