Shit brickwork

Design Sustainability

A Malaysian university, the Universiti Teknologi MARA, is experimenting with sewage sludge as a cement additive to make concrete.

Potentially this could support the increasing demand for concrete and also solve the issues around disposal of  rising sewage volumes.

However, as might be expected, the concrete had reduced performance with a higher concentration of sewage sludge in the mix.

The University researchers process involves the production of domestic waste sludge powder (DWSP) from dried and burnt sewage sludge to remove its moisture, before grinding and sieving to create the DWSP cement additive.

From sewage to construction