Abstract The paper presents research focused on behaviour of cement-bonded particleboards with modified composition during sudden changes temperature and humidity. Four types boards were made—one control three ones. Finely ground limestone was used as a modifying component in binder. Secondary wood particles made from crushing cuttings chips substituent. Two sets test specimens (1 set = 6 speci...

worldwide, asbestos fibers utilized in fiber cement boards, have been recognized as harmful materials regarding the public health and environmental pollutions. these concerns motivate the researchers to find the appropriate alternatives to substitute the asbestos material towards the sustainability policies. in this paper, the applicability of asbestos replacement with three types of agricultur...

Performance   evaluation in regular periods is one of the ways in which organizations can   evaluate their performance as well as weak and strong points unifiedly and   precisely. These days, mathematical models are also used to evaluate the   efficiency and productivity of various units. These units are a collection of   education, research and service activities as input and output factors an...

this research was conducted to investigate the effect of acetylation and type of resin on fire resistance of one and three layered populus particleboard. populus particles were acetylated at three levels of acetyl content (wpg of 0, 8.39% and 17.27%). in manufacturing of one and three layered boards with acetylated particles in all thickness or surface of the boards two type of resin, urea form...

In this study the effect of nano sized silica particles (nano-SiO2) on the physical and mechanical properties of rice husk and Old Corrugated Container (OCC)-cement boards was investigated. Modulus Of Rupture (MOR), Modulus Of Elasticity (MOE), Internal Bonding Strength (IB), density, water absorption and thickness swelling after 24 hours immersion in water and hardness were meas...

The use of sheeting materials within the construction industry is becoming increasingly common as building and way they are used evolves. Recently, magnesium-based boards have received more attention alternatives for traditional materials. This due to some their enhanced properties, particularly fire resistance lower embodied carbon. However, lack standardised documentation has caused concern r...

The aim of the present paper is to assess non-destructive indicating properties Slovenian beech (Fagus sylvatica) logs and correlate them with mechanical final product, which boards. Beech were visually graded according standard procedure vibrational frequencies measured. Logs further on sawn into boards also non-destructively tested in wet dry conditions. Finally, experimentally tension. Speci...

For any odd integer n≥3 a board (of size n) is square array of n×n positions with simple rule how to move between positions. The goal the game we introduce find path from upper left corner center square. If there exists such say that solvable, and length this shortest path. There are 8n2 different boards. We discuss various properties these boards present some questions conjectures. In particul...