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A damp-proof course (DPC) [2] is a barrier through the structure designed to prevent moisture rising by capillary action such as through a phenomenon known as rising damp. Rising damp is the effect of water rising from the ground into property. [3] The damp proof course may be horizontal or vertical. [4]
Although rising damp of up to 5 metres (20') in height has been observed [26] the height of rise is typically much lower and is rarely above 1.5 metres (5'). Rising damp has been a widely observed phenomenon for at least two hundred years. [27] There is also strong evidence to suggest that it was a problem understood by the Romans and Ancient ...
This reduces the compressive strength of the mortar but allows the wall system to function better. The lime mortar acts as a wick that helps to pull water from the brick. This can help to prevent the older brick from spalling. Even when the brick is a modern, harder element, repointing with a higher ratio lime mortar may help to reduce rising damp.
The dado in a pedestal is roughly cubical in shape, and the word in Italian means "dice" or "cube" (ultimately Latin datum, meaning "something given", hence also a die for casting lots). [ 2 ] [ 4 ] By extension, the dado becomes the lower part of a wall when the pedestal is treated as being continuous along the wall, with the cornice becoming ...
Accordingly, a single-leaf wall is a half brick thickness; a wall with the simplest possible masonry transverse bond [definition needed] is said to be one brick thick, and so on. [ 21 ] The thickness specified for a wall is determined by such factors as damp proofing considerations, whether or not the wall has a cavity, load-bearing ...
Engineering bricks can be used for damp-proof courses. [ 1 ] Clay engineering bricks are defined in § 6.4.51 of British Standard BS ISO 6707-1;2014 (buildings & civil engineering works - vocabulary - general terms) as "fire-clay brick that has a dense and strong semi-vitreous body and which conforms to defined limits for water absorption and ...
Brick water table at Reads Landing School in Minnesota. A water table is a projection of lower masonry on the outside of a wall, slightly above the ground, or at the top of a wainscot section of a wall (in this case also known as a sill).
Oxide jacking has caused concrete spalling on walls of the Herbst Pavilion at Fort Mason Center in San Francisco. The expansive force of rusting, which may be called oxide jacking or rust burst, is a phenomenon that can cause damage to structures made of stone, masonry, concrete or ceramics, and reinforced with metal components.