Two international architects have proposed a controversial concrete structure be built outside Doha as a memorial to the construction workers who have died working on Qatar's 2022 World Cup stadiums.

The giant memorial would consist of concrete blocks that each represent one fatality, with more blocks added if there are further deaths, Doha News reported.

The designs were drafted as part of their exercise 1week1project, in which they challenged themselves to come up with 52 new concepts over the course of a year.

Staircases on either side of the blocks would allow relatives and visitors to move around the structure.

It was designed by French-Chilean architects Alex de Stampa and Sylvain Macaux but is unlikely to be approved by Qatari authorities, who are facing pressure to improve the living and working conditions of thousands of expat labourers.

More than 450 Indians working in Qatar died during 2012 and 2013, according to Indian government figures obtained by news wire AFP under right of information laws.

The Nepalese embassy in Doha said in January it recorded 191 deaths among its citizens in 2013, with many of them from "unnatural" heart failure, possibly attributable to working outdoors in Qatar's scorching hot summer.

Qatar announced earlier this year changes to the law that would improve working conditions for foreign labourers. Last month, it said several of the changes to its labour law would be implemented by the end of the year.

Should Qatar build this structure as a memorial or use the funds to improve worker's conditions? What do you think?