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    Aggregate Standards

    IS 9142 (Parts 1-2)

    Artificial Sand for Concrete - Specification

    Edition: Part 1: 2018, Part 2: 2018Year: 2018Pages: 20

    About this code

    Specification for crushed-rock fine aggregate (manufactured sand). Part 1 covers source rock; Part 2 covers the M-sand product itself.

    Key sections

    1. 01Part 1: Source rock requirements
    2. 02Part 2: M-sand grading and quality
    3. 03Sampling and testing

    Critical clauses

    Clause Part 2, 5.0Fines Limit

    Fines passing 75 micron <= 15%.

    In practiceVSI-processed M-sand typically meets this.

    Clause Part 2, 6.0Methylene Blue

    <= 1.0 g/kg for clay-free fines.

    In practiceDistinguishes inert fines from clay.

    Practical implications

    For specifiers

    Reference IS 9142 with IS 383.

    For suppliers

    Verify VSI vs jaw-crushed source.

    For executors

    Test methylene blue if surface defects appear.

    FAQs

    M-sand vs river sand strength?

    Comparable when M-sand meets IS 9142. Often better due to consistent grading.

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