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Sep 28, 2020

Cement-free concrete may help cure our sewers

Cement-free concrete may help cure our sewers Highly corroded ordinary Portland cement (left) and a sample of the cement-free concrete (right).

RMIT University engineers have developed a zero-cement concrete which they say will free sewage pipes from corrosion as well as clogging caused by fatbergs. The material is a composite of nano-silica, fly-ash, slag and hydrated lime. The researchers say the concrete they have developed can withstand the corrosive acidic environment found in sewage pipes, while…

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