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    Durability & Exposure

    IS 6909:1990

    Sulphate Resisting Portland Cement - Tests

    Edition: 1st RevisionYear: 1990Pages: 10

    About this code

    Test methods for evaluating sulphate resistance of cement — accelerated mortar bar expansion test.

    Key sections

    1. 01Test apparatus
    2. 02Procedure
    3. 03Acceptance criteria

    Critical clauses

    Clause 5.0Expansion Limit

    Mortar bar expansion at 14 weeks.

    In practiceUsed to qualify SRC.

    Practical implications

    For specifiers

    Reference for SRC qualification.

    For suppliers

    Supplier-side test.

    For executors

    N/A.

    FAQs

    Run on every batch?

    No — supplier qualification test, not routine.

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