Standard specials

Increasingly, specials (special shapes) are being used to enhance the architectural quality of brickwork. British Standard BS 4729: 2005 illustrates the range of standard specials, which normally can be made to order to match standard bricks (Fig. 1.7). Designation of standard specials:

Angle and cant bricks Bullnose bricks Copings and cappings Plinth bricks Arch bricks Radial bricks Soldier bricks Cuboid bricks Bonding bricks Brick slips

Fig. 1.7 Specials.

Manufacturers also frequently make purpose-made specials (special specials) to the particular requirements of the architect or builder. Inevitably, delivery on specials takes longer than for ordinary bricks, and their separate firing frequently leads to some colour variation between the specials and the standard bricks, even where the clay used is identical. The more complex specials are handmade, usually in specially shaped stock

Fig. 1.7 Specials. (continued)

moulds, although some can be made by modifying standard bricks before firing. The range of shapes includes copings and cappings (for parapets and freestanding walls), bullnose (for corner details, e.g. window and door reveals), plinths (for corbelling details and cills), cants (for turning angles), arches and brick slips (to mask reinforced concrete lintels, etc.). Special bricks are also manufactured by cutting standard bricks, then, if

Fig. 1.7 Specials (continued). Photograph: Courtesy of Ibstock Brick Ltd

necessary, bonding the pieces with epoxy resins. This has the advantage of ensuring an exact colour match to the standard bricks. Many brick slips and arch voussoir sets (bricks to create an arch) are produced by this method.

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