APPENDIX D-Continued 



Table B 





Chlorides (PPM)<5) 



Structural Member 



1000-5000 



(inch) 



5000-10000 

 (inch) 



ioooo-ioooo(^> 



(inch) 



Piles 



3 



3 



3 



Footings 



3 



4 



5 



Walls 



2 



3 



5 



Columns 

 Flat face 

 Comer 



3 

 3 



4 

 5 



5 

 6 



(5) The coverings shown are for members in a chloride environment and apply only to 

 those particular members that are in direct contact with the soil or water. 

 Concrete shall contain a minimum of seven sacks of cement per cubic yard. 



(6) Including ocean water- submerged or splash. 



.3 Sulfate Resistance 



Resistance to concrete attack by high sulfate content in the soil is provided by increasing the Type II 

 cement factor or using Type V cement. The cement content and the cement types to be used for concrete 

 which will be in contact with soils containing sulfates will be as shown in Table C. The Hmits shall be shown 

 on the plans. 



Table C 



Sulfates (SO) PPM 



Sacks per Cubic Yard (min) 



Cement Type 



0-2000 

 2000-15000 

 Over 15000 



6 



7 

 7 



II 

 II 



V 



.4 Freeze-thaw Resistance 



All concrete placed in a freeze-thaw environment shall contain a minimum of seven sacks of cement per 

 cubic yard and 6 percent 



340 



