Fig. 2From: An Empirical Model to Predict Chloride Penetrations in Concrete Containing Palm Oil Fuel Ash Based on 10-Year Exposure Under Marine EnvironmentRegression analysis to determine C0 and k1 values in palm oil fuel ash concrete with a W/B ratio of 0.45. a Portland cement type I concrete. b 15% palm oil fuel ash concrete. c 25% palm oil fuel ash concrete. d 35% palm oil fuel ash concrete. e 50% palm oil fuel ash concreteBack to article page