Table C-1 . Moisture Content of Concrete 



Environmental 



Condition 



for Concrete 



Samples 



Samples 



m Original Condition 



Samples in Original Condition Dried-Out by - 



at 15,000 Psifor 7 Days 



50% RH, 70°F for 4 Months 



Additional 3 Weeks at 130°F 



Water 

 Gain 



(% by wt) 



No. 



of 



Samples 



Coefficient 



of 

 Variation 



(%) 



Water 



Loss 



(% by wt) 



No. 



of 



Samples 



Coefficient 



of 



Variation 



(%) 



Total 



Water 



Loss 



(% by wt) 



No. 



of 



Samples 



Coefficient 



of 



Variation 



(%) 



On-land field- 

 cured for 5.6 yr 



Interior of 

 blocks 



Exterior of 

 blocks 



Fog-cured for 

 5.6 yr 



Ocean-cured 

 for 5.3 yr 



Blocks 

 (uncoated) 



Coated 

 sphere wall 



Uncoated 

 sphere wall 



0.83 

 1.61 



2 

 4 



56.6 

 9.9 



0.87 

 1.78 



2.47 



2.83 

 1.85 

 2.58 



12 



4 



18 



8 



4 

 2 



21.8 



27.5 



8.9 



4.2 

 9.2 

 3.9 



2.61 

 2.76 



4.37 



4.72 

 3.52 

 4.27 



12 



4 



18 



10 

 8 



2 



12.3 

 16.7 



8.0 



5.5 

 8.6 

 1.2 



^2 



