Adelaide Brighton Cement said it is investigating the use of contaminated cement in several major construction projects around Adelaide following an issue with the manufacture of its "bulk cement during a four-day period between April 7 and 10" at its Birkenhead plant, ABC reports.

The cement was distributed by several companies, including Boral. "As soon as Boral was alerted, an immediate review was undertaken, with a number of strategies implemented to minimise the effect of the Adelaide Brighton cement supplies," a spokesman for Boral told the news service. This included the appropriate disposal of a large volume of cement prior to manufacture into concrete." Boral said it was working with effected customers.

Construction, Forestry, Mining and Energy Union (CFMEU) Secretary, Aaron Cartledge, said it was still trying to determine how many construction projects had been impacted. "We know that it was contaminated, we know it went to jobs, all we're asking is that people come clean with where it went and what it was used for, and is it safe," Mr Cartledge told ABC.