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  1. rayfra01

    Corrosion of concrete in a sewer sump problems

    In South Africa concrete used for structures that comein direct contact with sewerage such a a manhole or sump for a pump needs to be mixed with Dolomitic agregate as it corrosion at the same rate as te concrete (cement). If a Quartz type of agregate is used, then in +- 20 years the concrete...

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