Green Wall

The brick wall of the main hall at Portland Cement Works Precinct has been claimed, gradually, by moss and algae. Green growth spreads across the lower courses of brickwork, finding purchase in the mortar joints and along the base of the wall where moisture settles. Arched niches punctuate the far wall at regular intervals, a detail of Federation-era industrial construction that sits at odds with the biological quiet now occupying the space. From the stained concrete floor, a single cast-iron column rises to the iron-trussed roof above, the structural logic of the building still legible, even as the surfaces around it change. The Commonwealth Portland Cement Company registered in December 1900 and commenced cement production on 4 August 1902. The plant was designed and built under Dr August Wilhelm Karl Scheidel, a metallurgist who had trained in Heidelberg and Freiberg and was appointed by the New Zealand Mines Trust to rebuild what earlier operations had failed to sustain. The brickwork and steel trusses throughout the site reflect the Federation and Inter-War period construction phases documented in the NSW State Heritage Register listing, which describes the buildings as demonstrating functional design applied to large-scale industrial engineering. At its peak in 1911, the plant employed 608 workers. By 1912, the Commonwealth Portland Cement Company was producing approximately 40% of all Portland cement manufactured in Australia. Cement production continued until November 1991, when the works closed after 89 years of operation. The Portland Cement Works Precinct was added to the NSW State Heritage Register on 3 August 2012, listed as #01739. This photograph was made in 2018. The moss on the brickwork, the staining on the floor, the iron trusses overhead: they record a building in transition, its materials holding their form while the surfaces quietly shift.