Investigation on Mechanical Durability Properties of High-Performance Concrete with Nanosilica and Copper Slag

Table 3

Impact of nanosilica on chloride penetration.

Parameters	Charge passed (Coulombs 28 days)	Chloride penetration	Charge passed (Coulombs 90 days)	Chloride penetration
	1140	Low	1155	Low
	1138	Low	990	Extremely low
	1050	Low	920	Extremely low
	980	Extremely low	850	Extremely low
	820	Extremely low	702	Extremely low
	910	Extremely low	788	Extremely low
	955	Extremely low	824	Extremely low