Title: 
            Past Performances of Certain Fasteners and Required Research and Development
        
        
            Author(s): 
            J.E. Francis
        
        
            
                Publication: 
                Symposium Paper
            
            
                Volume: 
                22
            
            
                Issue: 
                
            
            
                Appears on pages(s): 
                45-54
            
            
                Keywords: 
                aggregates; concretes; failures; fasteners; hardened concrete; hardness; loads (forces); penetration; powder actuated tools; pullout tests; safety; studs
            
            
                DOI: 
                10.14359/17553
            
        
        
            Date: 
            1/1/1969
        
        
            Abstract:
            Performance characteristics of powder driven fastners installed in hardened concrete ranging in age from 30 ywars to 30 days indicate that failure in both shear and tension is apparently the direct results of frequent misapplication.