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Apart from structural wood preservation measures, there are a number of different chemical preservatives and processes (also known as timber treatment, lumber treatment or pressure treatment) that can extend the life of wood, timber, and their associated products, including engineered wood. These generally increase the durability and resistance ...
Alkaline copper quaternary, usually abbreviated ACQ, is a type of water-based wood preservative product containing a soluble copper(II) complex and quaternary ammonium alkyl- or aryl-substituted compounds ("quats"). Thus the product was originally called ammoniacal copper/quaternary ammonium. [1] [2]
Chromated copper arsenate (CCA) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.
Table 1. Environmental conditions for mycelial growth following germination [2] The average moisture content of modern softwood timbers in dry buildings is generally in the range of 12–15%, [2] and heating systems may reduce this to a far lower level. There is, therefore, no prospect of a dry rot infestation developing in a building that has ...
The Cowboys parted ways with Mike McCarthy earlier this week after five seasons and a 49-35 record, including three 12-win seasons and two NFC East titles but also a 1-3 mark in the playoffs ...
Thermally modified wood is engineered wood that has been modified by a controlled pyrolysis process of wood being heated to (> 180 °C) in an oxygen free atmosphere. This process changes to the chemical structures of wood's cell wall components lignin , cellulose and hemicellulose which decreases its hygroscopy and thus increases dimensional ...
Advent and Christmas come with many different traditions, including those of the culinary variety. Here's a look at three different food customs from around the world.
Sweeping deportations pledged by President-elect Donald Trump could pose an economic shock for the restaurant industry in ways that echo the pandemic: pricier menus, rising wages, and shuttered ...