burnt clay paving bricks (BI-LINGUAL)
1988 Edition

Overview of IS 3583 Part B: Scope and Specifications

1. Scope Description:

• Specifies the standard dimensions and permissible variations for burnt clay paving bricks.
• Bricks must be free from frogs (indentations).
• Sampling and compliance criteria are aligned with IS 5454-1978.

2. Standard Brick Dimensions (Clause 3.1):

3. Allowed Tolerances (Clause 3.2) for a Batch of 20 Bricks:

4. Important Points:

• These tolerances apply collectively to 20 bricks, not individually.
• Sampling and quality checks follow IS 5454-1978 requirements.

flowchart LR
    A[Standard Brick Dimensions] --> B[Length: 190 mm]
    A --> C[Width: 90 mm]
    A --> D[Thickness: 90 or 40 mm]
    E[Tolerances for 20 Bricks] --> F[Length ±80 mm]
    E --> G[Width ±40 mm]
    E --> H[Thickness ±40 mm]
    I[Quality Assurance] --> J[Sampling as per IS 5454-1978]

This framework ensures dimensional consistency and quality for paving bricks under IS 3583 Part B.

IS 3583 Part B: Material Specifications and Manufacturing Guidelines

1. Dimensions (Clause 3.1):

Standard sizes for paving bricks without frogs:

2. Dimension Tolerances (Clause 3.2):

Permissible cumulative tolerance for 20 bricks aligned in a row:

3. Measurement Procedure (Clause 3.2.1):

• Randomly select 20 or more intact bricks.
• Eliminate surface defects such as blisters and loose particles.
• Arrange bricks edge to edge in a straight line.
• Measure total length using a steel tape in one continuous stretch.
• If a single measurement isn’t feasible, split into rows of 10 bricks and measure separately.
• Sum the measurements to verify tolerance compliance.

Diagram Illustrating Measurement Approach

flowchart LR
    A[Select 20 bricks] --> B[Remove surface defects]
    B --> C[Arrange bricks linearly]
    C --> D[Measure total length with steel tape]
    D --> E{Is single stretch measurement possible?}
    E -- Yes --> F[Evaluate tolerance]
    E -- No --> G[Divide into 10-brick rows]
    G --> H[Measure each row]
    H --> I[Sum measurements]
    I --> F

This ensures dimensional precision for paving bricks suitable for their intended use.

IS 3583 Part B: Dimensional Standards and Allowance Criteria

1. Standard Brick Dimensions (Clause 3.1):

• Bricks must have smooth, rectangular surfaces and well-defined edges (Clause 2.2).
• Frogs or indentations on bricks are prohibited.

2. Dimension Tolerances (Clause 3.2):

Tolerances apply to the combined length of 20 bricks:

Additional Information:

• Tolerances are for combined bricks, which improves manufacturing quality control.
• Dimensions and tolerances correlate with modular brick specifications per IS 1077-1986.
• Measurements are expressed in millimeters; strength parameters follow N/mm².
• Final test values are rounded as per IS 2-1960 guidelines.

Calculation of Per Brick Tolerance:

[ \text{Tolerance per brick} = \frac{\text{Total tolerance for 20 bricks}}{20} ]

Example for length:

[ \pm \frac{80}{20} = \pm 4 \text{ mm per brick} ]

flowchart LR
    A[Standard Brick Dimensions] --> B[Length: 190 mm]
    A --> C[Width: 90 mm]
    A --> D[Thickness: 90 or 40 mm]
    E[Tolerances for 20 bricks] --> F[Length ±80 mm]
    E --> G[Width ±40 mm]
    E --> H[Thickness ±40 mm]
    B --> I[±4 mm per brick]
    C --> J[±2 mm per brick]
    D --> K[±2 mm per brick]

This ensures consistent dimensional standards in brick manufacturing.

IS 3583 Part B: Physical Properties and Dimensions of Paving Bricks

Key Specifications:

• Standard Sizes (Clause 3.1):

• Tolerance Limits (Clause 3.2):

Measurement Steps (Clause 3.2.1):

• Randomly select a minimum of 20 bricks.
• Remove surface imperfections like blisters and loose particles.
• Align bricks in a straight, contiguous line.
• Measure the total length with a steel tape in one stretch.
• If one stretch measurement is not possible, separate into two rows of 10 bricks and measure each.
• Add lengths to confirm total measurement.

Summary:

• Bricks must adhere to the prescribed sizes without frogs.
• Measurement is based on combined length of a brick sample to verify tolerance adherence.
• Tolerances represent the maximum permissible deviations over 20 bricks, ensuring dimensional uniformity.

flowchart LR
    A[Select 20 bricks] --> B[Remove surface defects]
    B --> C[Arrange bricks in line]
    C --> D{Measure total length}
    D -->|Single stretch| E[Record measurement]
    D -->|Not possible| F[Split into two rows of 10]
    F --> G[Measure each row]
    G --> H[Sum lengths]
    E --> I[Verify tolerance ± specified mm]
    H --> I

This guarantees critical dimensional consistency for performance in paving applications.

IS 3583 Part B: Sampling Protocols and Compliance Standards

Relevant Standards:

• Sampling and acceptance are governed by IS 5454:1978 (Sampling methods for clay building bricks).
• Efflorescence testing follows IS 3495 (Part 3):1976, requiring no visible efflorescence.

Sampling Approach (IS 5454:1978):

• Sample size varies with total lot quantity.
• Random sampling is conducted from various sections of the brick lot.
• The number of bricks sampled ensures a representative sample.

Compliance Requirements:

• Dimensional measurements must fall within tolerances specified in IS 3583.
• Efflorescence rating must be zero (no salt deposits visible).
• Physical and mechanical properties such as compressive strength and water absorption must meet IS 3583 limits.

Typical Dimensional Tolerances from IS 3583:

Sampling and Testing Workflow

flowchart TD
    A[Brick Lot] --> B[Random Sampling (IS 5454)]
    B --> C[Dimensional Verification]
    B --> D[Efflorescence Test (IS 3495 Part 3)]
    B --> E[Physical Property Tests (Strength, Absorption)]
    C --> F{Within Tolerances?}
    D --> G{Efflorescence Nil?}
    E --> H{Pass Strength & Absorption?}
    F & G & H --> I{All Comply?}
    I -->|Yes| J[Lot Accepted]
    I -->|No| K[Lot Rejected or Retested]

Note: Detailed sampling numbers and test procedures should be consulted directly from IS 5454:1978 and IS 3495 (Part 3):1976.

IS 3583 Part B: Marking Requirements for Burnt Clay Bricks

Marking Guidelines (Clause 6.1 & 6.1.1):

• Every brick must bear the manufacturer's identification mark or initials.
• The BIS Standard Mark may be affixed to bricks that meet quality standards.
• Usage of the Standard Mark is governed by the Bureau of Indian Standards Act, 1986.
• Marking provides traceability and indicates conformity to BIS quality inspections.

Dimension Tolerances (Clause 3.2):

Additional Information:

• Markings must be legible and durable to withstand handling.
• For licensing and Standard Mark usage, contact BIS authorities.

flowchart LR
    A[Brick Production] --> B[Apply Manufacturer ID Mark]
    B --> C{Include Standard Mark?}
    C -- Yes --> D[Confirm BIS Licensing]
    C -- No --> E[Apply Only Manufacturer Mark]
    D --> F[Ongoing BIS Quality Monitoring]

This system ensures authenticity and compliance with IS 3583 standards.

IS 3583 Part B: Procedures for Measuring Clay Building Bricks

Key Steps and Requirements (Clauses 3.2, 3.2.1):

• Sample: Randomly select 20 or more bricks.
• Preparation: Remove blisters, loose clay, and minor surface projections.
• Arrangement: Position bricks in a straight line, touching each other (refer to figures 1A, 1B, 1C).
• Measurement: Use a steel tape or non-stretchable measuring tool to record the total length in one continuous measurement.
• If not feasible: Divide into two rows of 10 bricks, measure each separately, then add the lengths.
• Repeated short measurements are not allowed.

Tolerance Table (Clause 3.2):

Marking Notes (Clause 6.1.1):

• Bricks may carry the BIS Standard Mark, indicating adherence to quality control and inspection protocols.

Visual Summary of Measurement Process (Fig. 1):

flowchart LR
    A[Select 20 bricks] --> B[Remove surface defects]
    B --> C[Arrange bricks in a straight line]
    C --> D[Measure overall length with steel tape]
    D --> E{Is single stretch measurement possible?}
    E -- Yes --> F[Record total length]
    E -- No --> G[Divide into two rows of 10 bricks]
    G --> H[Measure each row]
    H --> I[Sum all measurements]
    F & I --> J[Verify against tolerance limits]

This ensures precise dimensional verification as per IS 3583 Part B.