





















I 





70 





















i 







^ 







3 

 cr 













I 





60 









DC 











J 



P 











^ 









X 



o 





J 





ative scale 



50 







■o 

 o 







1 



as 





J 



w 





c 













1 o- 



<u 





ll 



i 



r 







c ' 



40 









s 3 



,1 



J JL 



I A" 















li 



JV" 











o 

 u 





li 



i 



ir 



r 













30 





1 



/i 



^ 



n 



1^ 















,Lij 



J^ 



// 



f 









Concrete curing: on-land 

 Concrete age; 22 months 

 J 1 



field 



^ 



^ 



»i' 



^ 











Tube 

 Curre 



Copper 

 nt: 15 m£ 

 ge: 35 kv 

 constant: 

 rate: 1 de 



i 1 



<-alphaj 





















Time 

 Scan 



4 sec 

 g/min 



1 





41 38 



29 26 23 20 



Diffraction Angle, 2d (degrees) 



Figure A-1. X-ray diffraction pattern for concrete from W-15 control block. 



24 



