CONTENTS Overview vii Assessment of Air Entrainment in Fresh Cement Paste Using Ultrasonic Nondestructive Testing R. M. Kmack, K. E. Kurtis, L. J. Jacobs, and J.-Y. Kim 1 Evaluation of Two Automated Methods for Air-Void Analysis of Hardened Concrete A. M. Ramezanianpour and R. D. Hooton27 The Practical Application of a Flatbed Scanner for Air-Void Characterization of Hardened Concrete K. Peterson, L. Sutler, and M. Radlinski 41 Evaluation of the Critical Air-Void System Parameters for Freeze-Thaw Resistant Ternary Concrete Using the Manual Point-Count and the Flatbed Scanner Methods M. Radlinski, J. Olek, Q. Zhang, and K. Peterson 64 Assessing the Durability of Engineered Cementitious Composites Under Freezing and Thawing Cycles M. Sahmaran, M. Lachemi, and V. C. Li85 Experimental Study on Freeze-Thaw Damage Mechanism of Lightweight Aggregate Concrete J. Mao, K. Ayuta, H. Qi, and Z. Liu 103 Test Methods for Characterizing Air Void Systems in Portland Cement Pervious Concrete J. T. Kevern, K. Wang, and V. R. Schaefer 119 Effects of Strength, Permeability, and Air Void Parameters on Freezing-Thawing Resistance of Concrete with and without Air Entrainment BG. Lomboy and K. Wang 135 Determining the Air-Entraining Admixture Dosage Response for Concrete with a Single Concrete Mixture M. T. Ley 155 Freeze-Thaw Performance of Concrete: Reconciling Laboratory-Based Specifications with Field Experience D. J. Janssen 170