Table B-l . Preservative retention of marine 

 piles within a 1-inch depth. 







Av 



erage Preservative Retention 











of Five Pi 



les per Treatment 





1 2 



Treatment ' 



Specific 

 Gravity 







pcf 









Total 













Creosote 



Metallic 

 Salts 



Chromium 



Copper 



Arsenic 







Southe 



rn Pine 









Untreated 



0.54 























Creosote 



0.54 



28.9 



















2.5 ACA 



0.54 







6.76 







3.43 



3.33 



1.0 ACA, kiln, 

 creosote 



0.53 



29.8 



2.04 







1.05 



0.99 



1.0 ACA, air, 

 creosote 



0.55 



29.5 



1.70 







0.81 



0.89 



1.0 CCA, kiln, 

 creosote 



0.54 



27.6 



1.58 



0.68 



0.23 



0.67 



1.0 CCA, air, 

 creosote 



0.55 



31.1 



1.39 



0.63 



0.18 



0.57 



2.5 CCA 



0.56 







5.18 



2.46 



0.83 



1.89 







Dougl 



as Fir 









Untreated 



0.47 























Creosote 



0.44 



21.6 



















2.5 ACA 



€.44 







4.67 







2.37 



2.30 



1.0 ACA, kiln, 

 creosote 



0.46 



30.6 



1.12 







0.53 



0.59 



1.0 ACA, air, 

 creosote 



0.46 



30.5 



1.05 







0.51 



0.54 



1.0 CCA, kiln, 

 creosote 



0.44 



18.7 



0.79 



0.36 



0.12 



0.31 



1.0 CCA, air, 

 creosote 



0.46 



16.1 



0.55 



0.27 



0.07 



0.22 



ACA - ammoniacal copper arsenate 

 CCA - chromated copper arsenate 



'Number represents pounds of chemical per cubic foot of sapwood. 



3. Bending Tests of Full-Sized Piles 



"The 75 piles were then destructively tested at the Forest Research Lab- 

 oratory, Corvallis, Ore., in a random chronological manner." 



"Piles were selected randomly for testing. They were loaded into a 

 600,000-lb capacity, universal testing machine from the Civil Engineering 

 Department of Oregon State university. If a pile was curved, it was rotated 



408 



