Cardboard sandwich adds strength to shelter panels

Described in the journal Structures, the timber-cardboard web-core sandwich (TCWS) panels consist of thin timber facings separated by cardboard studs and air pockets. According to the research paper, they are 50 per cent lighter than a previous design that featured a solid carboard core - known as timber-cardboard sandwich (TCS) panels – but just as strong.

The panels were developed by structural engineering PhD candidate Mahmoud Abu-Saleem and Associate Professor Joe Gattas, both from the University of Queensland’s School of Civil Engineering. Designed primarily for temporary housing and shelters, the panels’ use of readily available and sustainable materials means they are less exposed to the shortages and cost pressures of traditional construction materials.  

“Cardboard is one of the most highly recycled materials for packaging in Australia,” said Dr Gattas.

“There’s no impact on waste generated and no increase in resource consumption. You're essentially extending the service life of that material before it gets recycled again.”