Concrete cancer in Wynnum, Queensland

Concrete Cancer Brisbane inspects and repairs concrete in Wynnum, where the typical buildings are 1960s–80s walk-ups and low-rise units, and the written scope comes before any repair price.

Typical causes in Wynnum

Wynnum sits on Moreton Bay, so a block near the water can take airborne chloride. Where it does, chloride can matter more than carbonation, because it breaks the steel's protection locally and pits the bar rather than degrading it evenly. On an older walk-up block along the esplanade, the seaward balconies can take more salt than the sheltered side. Any repair near the water should test for chloride first, and where it is present, price sacrificial anodes in from the start rather than discovering the need halfway through.

Wynnum site facts

What the Wynnum figures mean for the concrete

Wynnum's centre is 0.7 km from the Moreton Bay shore. AS 3600, the Australian concrete standard, puts exterior concrete within 1 km of the coastline in a harsher exposure class (B2) than concrete 1 to 50 km away (B1). The centre falls inside that 1 km band; blocks on the esplanade sit closer still, and blocks a few streets back may not. So a Wynnum scope should record each building's own distance to the water and which faces look at it, then test chloride on the seaward face first. The Brisbane River is 3.2 km away and adds little here.

Prices, method and nearby suburbs

Prices are on the cost page and the measuring method is on the about page. Nearest suburbs with a page here: Manly (about 2 km), Hamilton (about 10 km), New Farm (about 12 km), Coorparoo (about 12 km).