NVQ Diploma L2 6705-23
Unit 206 Construct cavity walling forming masonry structures
Aim
The aim of this unit is to provide the learner with the
knowledge and skills to construct walling to form masonry structures
Learning outcome
The learner will:
1. understand how to plan and select resources for practical tasks
Assessment criteria
The learner can:
1.8 Explain reasons for checking datum heights at corner positions.
The layout of the building has been set out and the trench has been excavated down to the required depth.
At this stage, levels must be transferred from the datum peg to pegs positioned in the bottom of the trench.
These pegs determine the thickness of the concrete foundation required and also assist in keeping the surface of the concrete level.
Whenever possible the difference in height between the datum peg and the concrete pegs should be a multiple of brick courses to assist the bricklayer.
After a level has been transferred to a peg in the trench bottom further pegs can be ‘levelled in’ using a straight edge and a bricklayer’s level
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