Description 
                            The papers presented in this volume were included in a three-part session sponsored by ACI Committee 201, Durability of Concrete, about sulfate attack on concrete at the ACI Convention in Philadelphia, PA, on October 23-24, 2016. In line with the practice and requirements of the American Concrete Institute, peer review, followed by appropriate response and revision by authors, has been used. 
Deterioration of concrete due to sulfate attack is a complex process characterized by multiple damage manifestations including volumetric expansion, cracking, spalling, softening, and in some cases mushiness. Sulfate attack can generally be classified as internal or external to the cementitious matrix, and the underlying damage modes can be chemical or physical. The scope of papers involves a multitude of theoretical and experimental aspects of different forms of sulfate attack. Readers are urged to critically evaluate the work presented herein, in the light of the large body of knowledge and scientific literature on this durability topic.
                        
                    
                
                
                        Table of Contents 
                        SP-317—1
Criteria for Concrete Mixtures Resistant to Chemical Sulfate Attack           
Authors: Karthik H. Obla and Colin L. Lobo
SP-317—2
Sulfate Resistance of Ternary Blend Concretes:  Influence of Binder 
Composition on Performance      
Authors: R. Brett Holland, Kimberly E. Kurtis, Lawrence F. Kahn
SP-317—3
Chemical and Mechanical Characterization of Damage Evolution in 
Concrete Due to External Sulfate Attack 
Authors: A. Bonakdar and B. Mobasher
SP-317—4
Performance of Alternative Binders in Sulfate Environments          
Authors: L.E. Burris and K.E. Kurtis 
SP-317—5
Durability of Two-Stage (Pre-Placed Aggregate) Concrete to Sulfate Attack             
Authors: M. F. Najjar, A. M. Soliman, T. M. Azabi and M. L. Nehdi
SP-317—6
Efficacy of Composite-Strengthening on Axial Capacity of Concrete 
Subjected to Sulfate-Induced Damage     
Authors: Yongcheng Ji and Yail J. Kim
SP-317—7
Criteria for Selecting Mixtures Resistant to Physical Salt Attack    
Authors: Karthik H. Obla and Robert C. O’Neill
SP-317—8
Efficacy of Ultrasonic Pulse Velocity Testing to Assess 
Sulfate-Degraded Concrete          
Authors: Julie Ann Hartell, Andrew J. Boyd, Patrice Rivard
SP-317—9
The Effects of Supplementary Cementitious Materials and Exposure 
Temperature on External Sulfate Attack  
Authors: Ashlee Allison and Michael D.A. Thomas
SP-317—10
Sulfate Resistance of Mortar Bars in Calcium, Magnesium, and Sodium Sulfate Using A Vacuum Impregnation Technique               
Authors: Federico M. Aguayo, Thano Drimalas, Kevin J. Folliard