The process is most suited to traditional sized elements such as cills, heads, string courses and copings. Structural items can be produced so long as the reinforcement requirement does not inhibit compaction. The ability to reinforce semi-dry cast stone is yet another advantage over natural stone.
Units are generally cast face down into wooden moulds using pneumatic or electric sand rammers. Alternatively, steel hand moulding machines or ‘machine mould’ can be used to produce consistently sharp, crisp arrises suitable for ashlar and details such as L quoins and plain band courses. The benefits of machine mould are even shorter lead times and lower cost.