Concrete Blockwork

Gauge

Nominal height gauge is 200mm.
Nominal length gauge is 400mm

Widths vary 90mm, 150mm, 140mm and 190mm blocks are available.

Tools Required.

Tools required are just standard bricklaying tools. Basic Tool Kit

Laying Method

Setting Out
Similar to standard bricklaying, cutting blocks should be avoided at all times if possible.
Horizontal steel bars are placed every 2 courses, or 400mm centres.
Vertical steel bars are placed every 1 block width also 400mm centres.

Starter Bars.

Starter bars stop the blockwork from moving laterally.
The bars are set at 400mm intervals in the concrete footing or slab, they are best set out and drilled into place when the concrete has set.
Positioning the starter bars at the concrete pour stage is very rarely successful as the spacings are usually wrong.

Once the wall has gone off the core of the block is filled with fine concrete and more bars are inserted.

More blockwork.

The steel door frame has a spreader inserted to stop the jambs from bowing as the blockwork progresses up the jamb.

Finishing Blockwork

Finishing blockwork is similar to Finishing Brickwork the most common finishes are round jointed, or flush.