Title: 
            Observed Deflections of Reinforced Concrete Slab Systems and Causes of Large Deflections
        
        
            Author(s): 
            ACI Committee 435
        
        
            
                Publication: 
                Symposium Paper
            
            
                Volume: 
                86
            
            
                Issue: 
                
            
            
                Appears on pages(s): 
                15-62
            
            
                Keywords: 
                
            
            
                DOI: 
                10.14359/6425
            
        
        
            Date: 
            8/1/1985
        
        
            Abstract:
            This report is in two distinct parts. Part I is a summary of published studies on slab deflections (3 from Australia, 1 from Scotland, 1 from Sweden, 2 from U.S.). The summary focuses on construction practices and materials quality. Comparison of deflections calculated by various methods with actual long-term deflections is made in some cases. Part II summarizes several construction problems and mate-rial deficiencies which can contribute to large long-term deflec-tions. Focusing on large construction loads, the authors show