Corrosion of the structural steel roof deck large warehouses resulted in several invasive forensic investigations to determine cause and mechanism corrosion. The warehouse investigation presented this paper is one many similar located near Gulf Mexico along Southern Atlantic Seaboard experiencing corroded decks when constructed using fiberboard insulation made from sugarcane fiber called bagass...

[ABSTRACT] Chemical compositions and fiber measurement of virgin and recycled fibers from three sources were determined. Results revealed that virgin southern pine fiber had highest slcohol-benzene extractive and lignin contents and lowest holoand alpha-cellulose content among the three fiber types. Fiber length distribution of virgin fiber was less sensitive to disintegration. Effects of recyc...

Abstract Medium-density fiberboard (MDF), a wood-based material that consists of tight random network wood fibers, deforms more than when exposed to water. For the first time, microscopic deformations MDF were tracked during swelling. A hygroscopic swelling setup imposing deform throughout tomographic acquisition was used coupled X-ray microtomography. An advanced reconstruction algorithm enabl...

Milling with use of CNC machines is a well-established method and much research was concluded on this topic. However, when it comes to wood composites, the material non-homogeneity brings lot variability into cutting conditions. As part potential signals for nesting milling, vibrations at clamping points were examined in study. The main goal conclude if parameters have statistically significant...

The potential of pulsed THz radiation for time-of-flight imaging applications is well recognized. However, advances in this field are currently severely limited by the low average power ultrafast sources. Typically, results impractically long acquisition times and a loss resolution contrast. These limitations make objects real-life scenarios impossible. Here, conclusively, state-of-the-art high...

Vietnam’s forestry policies have expanded the area of planted forests in order to meet supply raw materials for timber processing industry. However, diversity and volume demand industry also increased, a shortage can be assumed. For clarifying correspondence stakeholders, we explore changes resource behavior companies procurement strategies that manufacture lumber glued laminated timber, medium...

The mode I fracture toughness as a function of crack length of medium density fiberboard (MDF), particle board (PB), and Douglas-fir (DF) were all measured using a new energy-based method. PB and MDF are examples of composites that develop fiber bridging during crack propagation, which causes their toughness to increase with crack length. Longitudinal cracks in DF also displayed fiber bridging ...

The objective of this research was to investigate the utilization of olive mill sludge (OMS) as an alternative to wood in the manufacture of the medium density fiberboard (MDF). The MDF panels were manufactured using standardized procedures that simulated industrial production at the laboratory. Six panel types were made from various mixtures of hardwood fiber/dried OMS flour, 100/0, 90/10, 80/...