Relationship between stress wave transmission time and bending strength of deteriorated oriented strandboard

摘要: ters and important residual strength Stress wave nondestructive evaluation (NDE) technologies are used in the inspec- properties of wood-based materials. tion timber structures frequently complement visual inspection procedures. In- A limited number studies that fo­ spectors use stress NDE techniques to locate internal voids anddecayed or deteri- cused on prediction orated areas large timbers. Although those have proven useful been completed. Aggour (1989), inspections, no information exists concerning relationship between Pellerin et al. (19851, Ross transmission time oriented strandboard (2001,1997) (OSB) has exposed decay fungi. We examined assess piles, transmissiontime andbending OSB subjected brown-rot de- small clear specimens, cay was measured specimens Based encouraging results hadbeenexposed decayfungi for up 11 weeks. Static bending tests were from these potential then performed specimens. strong observed strength. wood composites, we designed a pilot study examine times oriThe degradation aminations, often as vi- ented (OSB). This paper load-bearing (in-service) member may sual procedures (Ross summarizes study. be caused by variety agents. Organ- 1994). techisms derive their nourishment niques Materials methods