Dowel Bars and Sleeves

[BotusBuild]

On my SE's drawings are a series of dowel bars connecting 3 smaller slabs that are outside the envelope of the house to the main house slab (insulated). Has anyone had to install such dowels in their build? I would appreciate a chat so that I can understand how they work, and hence the best way to install them.

 

(I am building myself and not having contractors wherever possible)

[markc]

Dowels are used where slabs cannot be connected (expansion joints, crack inducers etc). they simply allow the slabs to move independently while preventing them from becoming uneven/mis-aligned.

Drill holes in the shuttering at the required locations and insert the dowels through the holes with approx 50% sticking out. If sleeves are specified, these are then slid onto the exposed ends prior to the next pour