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Unit 2046 - Brickwork Level 2 CAA Diploma ... - Pearson Schools

Unit 2046 - Brickwork Level 2 CAA Diploma ... - Pearson Schools

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<strong>Unit</strong> <strong>2046</strong> How to carry out thin joint masonry and masonry cladding<br />

or one panel to another. In many instances, they are fixed in such<br />

a way that there is no need for traditional mortar courses and<br />

jointing methods.<br />

In addition to the pre-cast units above, pre-fabricated brickwork<br />

is increasingly being used in modern construction projects. This<br />

type of brickwork consists of panels of traditional brickwork being<br />

built in a production plant and transported to site where it is lifted<br />

into position. This requires the brickwork to be pre-tensioned<br />

with the use of steel reinforcement so that the whole panel can<br />

be transported from the factory to the site without damaging or<br />

weakening it.<br />

Brick slip and brick tile systems<br />

This type of cladding consists of brick slips, or tiles of<br />

approximately 25–35 mm in thickness, fixed to a pre-fabricated<br />

panel, which is in turn fixed to the main structure.<br />

The slips, or tiles, are fixed either by using a special adhesive or by<br />

mechanical fixing methods. All joint finishing is normally carried<br />

out once the installation is complete. Joint finishing is achieved<br />

by pumping a special cement-based mortar into the vertical and<br />

horizontal joints and then forming a joint finish in the normal way.<br />

Alternative cladding materials<br />

In addition to brick and block claddings, pre-cast panels can<br />

also be produced from materials such as concrete, stone, granite<br />

and slate. Of these, concrete cladding is the most common. It is<br />

normally in the form of pre-cast concrete panels reinforced with<br />

steel mesh and/or rods and available in a wide range of colours<br />

and finishes. The finish of these units can resemble a stone effect,<br />

standard rendered finishes and even a brick facing.<br />

Masonry cladding<br />

Traditional construction methods require the bricklayer to build<br />

outer and inner leaves of brick and blockwork with a gap of 50–75<br />

mm separating them. The two separate leaves are tied together<br />

using galvanised steel ties. This is referred to as cavity wall<br />

construction. In most cases, cavity walls built in the traditional<br />

way are load-bearing. However, the traditional cavity walling<br />

construction is usually restricted to buildings of no more than two<br />

or three storeys in height.<br />

Where buildings are built in excess of three or four storeys, an<br />

outer skin of facing brickwork may be used to cover the main<br />

framed structure. Traditionally, these multi-storey buildings have<br />

Key term<br />

Brick slips – these usually<br />

have the same length<br />

and height dimensions as<br />

standard clay bricks used<br />

in traditional construction<br />

methods. However, the<br />

thickness of the slip is<br />

normally no more than 25<br />

mm. Generally brick slips are<br />

made from exactly the same<br />

material as standard clay<br />

bricks<br />

Did you know?<br />

Some manufacturers of<br />

brick slips and tiles are<br />

now producing this type of<br />

cladding in sizes larger than<br />

the standard brick sizes<br />

Key term<br />

Load-bearing – walls<br />

referred to as load-bearing<br />

support the load from roofs<br />

and floors<br />

Remember<br />

The main purpose or<br />

function of any masonry<br />

cladding is to provide<br />

the decorative finish to a<br />

structure<br />

How to carry out thin joint masonry and masonry cladding <strong>Unit</strong> <strong>2046</strong><br />

181

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