Brickwork.net.au
bits and pieces
Racking back.
Racking is a process that is used for corner building either internal or external, if you need the wall to be 4 courses high you rack back the corner back 2 bricks long.
The example in the picture is in an internall corner with a profile, a profile is generally not used to rack back.
I did the rack back as an example only
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Rack Back
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Rack Back
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Prop (Tom)
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Prop (Tom)
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Lintel Props (Toms)
Steel lintels used for brickwork must be propped if the span on the lintel is too long, otherwise they will sag.
The longness-saginess is determined by the thickness of the bar and the number of courses it has to carry, if you are unsure of the saginess of the bar, then it is best to prop it.
Failing to prop the lintel will result in the lintel sagging under the weight of the bricks.
A saggy lintel can not be unsagged once the bricks are laid and set.
If you have a saggy lintel the only remedy is to take down the brickwork and re-do it.
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Tie Bolt
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Tie Bolts
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Tie Bolts Galore
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Hand Mades
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Parapet
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Tie Bolts.
Tie Bolts are used to stop a wall from spreading and bulging, a lot of older buildings used them.
There is a rod connecting two Tie Bolts that are on either side of the buildings.
Hand Made Bricks.
The raised part on the face of the brick comes from a groove that has worn in the stick that was used by the brick maker to level off the excess clay in the mold.
Parapet.
A parapet wall continues up past the top of the roof line, usually done for fire proofing reasons.
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Propping
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Propping
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LevelPlumb
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Winding
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Wind Eyes
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Ties
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Setting up a steel door frame/jamb.
Prop the frame up with some batons that have nails protruding from the top, the nails hook into the top of the frame and stop it from moving, weigh the props down with some bricks to stop the frame from moving.
Position the base of the frame where it needs to go in the wall, this can either be built with the bricks running into the frame (sinle skin), or the bricks just butting up to the frame.(double skin)
The pics are of a double skin intallation.
Level the frame head.(Pic 3)
Plumb the sides of the frame both ways (Pic 3), that is, inside the frame where the door is to go and the side that will be either inside or outside.
Check the door for winding, this is to make sure that both jambs are running parallel to each other and not twisted.(Pic 4 and 5)
Insert the ties that came with the door frame (Pic 6) usually 4 per side.
The cavity in the steel door frame is usually filled with mortar, this gives added strength to the frame and brickwork (pic 6) fill as you go as filling from the top can make the frame bulge with the weight of wet mortar.
A twisted steel door frame will show up when you hang the door.
So its important get the set up right.