Search results
Results from the WOW.Com Content Network
The process of reducing the moisture content of wood before working to prevent cracking, splitting, and other damage often caused by drying. shake 1. A crack or split in wood caused by damage or drying. 2. A split (as opposed to sawn) shingle. shim
Air-drying timber stack. Wood drying (also seasoning lumber or wood seasoning) reduces the moisture content of wood before its use. When the drying is done in a kiln, the product is known as kiln-dried timber or lumber, whereas air drying is the more traditional method. There are two main reasons for drying wood: Woodworking
The nature of wood defines woodturning techniques. The orientation of the wood grain, relative to the axis of the lathe, affects the tools and techniques used by the woodturner. In spindle turning, the grain runs lengthwise along the lathe bed, as if a log were mounted in the lathe.
Moisture can also cause wooden lath to expand and contract, causing the plaster around it to crack. [5] Additionally, failure can also occur in the plaster keys. Over time, the keys can deteriorate and crack, weakening their ability to hold the plaster onto the lath. [12] The addition of hair in plaster helps to prevent this by adding strength.
Earthen plasters are becoming more popular in interior design due to its sustainable and eco-friendly characteristics. The plaster influences the thermal comfort, the indoor air quality and energy efficiency in a positive way. During the drying process however, there is shrinkage which affects its ability to adhere properly to the surface. [3 ...
Care is taken not to allow the drill's paddle to hit the bottom or sides of the barrel; this can scrape off plastic bits that end up in the mix. At a certain point before the mixing is done a margin trowel is again used to scrape any clinging dry plaster into the rest of the mix. typically this is when the accelerator; if used is added.
This plaster is composed of alluvial soil, mixed with a portion of cow-dung to prevent it from cracking, and with chopped grass to enable it to adhere, the coat being put on with a light spade and smoothed over with a plasterer's trowel.
Typical French craquelure in a portrait from c. 1750, larger and less regular patterns, with curving cracks. Painting systems are composed of complex layers with unique mechanical properties that depend on the type of drying oil or paint medium used and the presence of paint additives, such as organic solvents, surfactants, and plasticizers.