Laboratory evaluation of volatile organic compounds emissions from coated and uncoated oriented Strandboard

摘要: Current design of structural composite lumber (SCL) assumes that the ratios Young's modulus (E) to in-plane shear rigidity (G) are equivalent values associated with solid-sawn lumber. Yet there is no published research presenting a direct comparison elastic constants for SCL and Accordingly, study was conducted better define appropriate E:G evaluated three kinds SCL, including laminated veneer (LVL), parallel strand (PSL), (LSL), one type This paper reports on data collected applying ASTM D 198 test standard non-standard five-point bending (FPBT) moduli determination. Data collection included edgewise flatwise loading in longitudinal direction determine elasticity (E 1 ) planar (G 12 G 13 ). The E :G from LVL only constant ratio comparable values. Large differences were observed compared concludes between materials. Comparison previously literature favorable. A FPBT results shows all as well less than 10 percent different. yielded measure variability testing. felt provide an accurate simple evaluation properties wood composites.