Structural Flakeboards and Composites 302 1 



Although not descriptive of panels made from southern hardwoods, readers 

 needing an introduction to the subject of durability will find the following 

 references useful: 



Reference Subject 



Hann et al. (1963) How durable is particleboard? 



Gatchell et al. (1966) Variables affecting properties of particleboard for 



exterior use. 



Heebink (1967) Degradation of particleboard in exterior use. 



Jokerst (1968) Long-term durability of Douglas-fir flakeboard. 



Heebink (1972) Irreversible dimensional changes in panel 



materials. 



Geimer et al. (1973) Weathering characteristics of particleboard. 



McNatt (1974) Properties of particleboards at various humidities. 



Hall and Haygreen (1975) Effect of simulated weathering on impact perfor- 

 mance of particleboard. 



McNatt (1975) Humidity effects on structural particleboard. 



Raymond (1975) Outdoor weathering of plywood and composites. 



Carlson and Haygreen ( 1 976) Effect of temperature and humidity on toughness 



of structural particleboard. 

 Meierhofer and Sell (1977) Influence of surface treatments on properties of 



weathered particleboards. 



Shen (1977b) A proposed rapid-acceleration aging test. 



Baker and Gillespie (1978) Accelerated aging of phenolic-bonded 



flakeboards. 



Barnes and Lyon (1978b) Effect of aging on decking. 



Steiner et al. (1978) Density, thickness expansion, and internal bond 



strength after accelerated aging. 

 Hall and Gertjejansen (1979) Weatherability of Ghanian hardwood flakeboard 



of ACA-treated flakes. 



A North American workship on exterior durability of structural flakeboard 

 was held in October 1982 in Pensacola, Fla.; the Southern Forest Experiment 

 Station, Forest Service, U.S. Department of Agriculture, Pineville, La., has 

 information on where to obtain the Proceedings from this workshop, which 

 provides state-of-the-art discussions. 



24-16 PROPERTIES OF REPRESENTATIVE FLAKEBOARDS 



After making the laboratory-scale, mixed-species flakeboard suggested by 

 Hse et al. (1975), with properties as discussed in text related to figure 24-38, the 

 Pineville laboratory of the Southern Forest Experiment Station fabricated three 

 additional series of boards with different mixes of southern woods, and proper- 

 ties as follows (in all cases, flakes were cut on a shaping-lathe — see figure 18- 

 104abcd): 



