burnt clay paving bricks (BI-LINGUAL)

IS 3583 Part B: Scope - Key Specifications & Tables

1. Scope Summary:

• Covers standard sizes and tolerances for paving bricks.
• Bricks shall not have frogs (indentations).
• Sampling and conformity follow IS 5454-1978.

2. Standard Dimensions (Clause 3.1):

3. Permissible Tolerances for 20 Bricks (Clause 3.2):

4. Additional Notes:

• Tolerances apply to the aggregate of 20 bricks, not individual bricks.
• Sampling and conformity testing as per IS 5454-1978 ensure quality control.

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

This ensures dimensional uniformity and quality for paving bricks as per IS 3583 Part B.

IS 3583 Part B: Material and Manufacture - Key Specifications

1. Dimensions (Clause 3.1)

Standard paving brick sizes (no frogs):

2. Tolerances (Clause 3.2)

Permissible total tolerance on dimensions for 20 bricks assembled in a row:

3. Measurement Procedure (Clause 3.2.1)

• Select 20 or more whole bricks randomly.
• Remove blisters, loose particles, and small projections.
• Arrange bricks in a straight line in contact.
• Measure total length with a steel tape in one stretch.
• If impractical, divide into rows of 10 bricks and measure separately.
• Sum all measurements to check tolerance.

Summary Diagram of Measurement Setup

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

This ensures bricks meet dimensional accuracy for quality paving applications.

IS 3583 Part B: Dimensions and Tolerances for Paving Bricks

1. Standard Dimensions (Clause 3.1)

• Bricks shall have smooth rectangular faces and sharp corners (Clause 2.2).
• Frogs (indentations) are not allowed.

2. Tolerances on Dimensions (Clause 3.2)

Tolerances are specified for a sample of 20 bricks:

Notes:

• Tolerances apply to the total of 20 bricks, not individual bricks.
• This ensures better quality control during manufacture.
• Dimensions and tolerances are aligned with IS 1077-1986 for modular bricks.
• Measurements are in millimeters; strength values in N/mm².
• Final test values should be rounded as per IS 2-1960 rules.

Summary Formula for Tolerance per Brick:

[ \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[Depth: 90 or 40 mm]
    E[Tolerances for 20 bricks] --> F[Length ±80 mm]
    E --> G[Width ±40 mm]
    E --> H[Depth ±40 mm]
    B --> I[Per Brick ±4 mm]
    C --> J[Per Brick ±2 mm]
    D --> K[Per Brick ±2 mm]

This ensures dimensional uniformity and quality in paving brick production.

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

Key Specifications:

• Standard Sizes (Clause 3.1):

• Tolerance on Dimensions (Clause 3.2):

Measurement Procedure (Clause 3.2.1):

• Select 20 or more bricks randomly.
• Remove blisters, loose particles, and projections.
• Arrange bricks in a straight line in contact.
• Measure overall length with a steel tape in one stretch.
• If impractical, divide into rows of 10 bricks and measure separately.
• Sum all measurements for total length.

Summary:

• Bricks must conform to specified sizes without frogs.
• Measurement uses aggregate length of multiple bricks to check tolerances.
• Tolerances are total allowable deviations for 20 bricks, ensuring dimensional consistency.

flowchart LR
    A[Select 20 bricks] --> B[Remove defects]
    B --> C[Arrange in line]
    C --> D{Measure length}
    D -->|One stretch| E[Record length]
    D -->|Impractical| F[Divide into 2 rows of 10]
    F --> G[Measure each row]
    G --> H[Sum lengths]
    E --> I[Check tolerance ± specified mm]
    H --> I

This ensures dimensional uniformity critical for paving brick performance.

IS 3583 Part B: Sampling and Criteria for Conformity

Key References:

• Sampling and conformity criteria: As per IS 5454:1978 (Methods of sampling clay building bricks).
• Efflorescence test: According to IS 3495 (Part 3):1976, the efflorescence rating must be nil (no visible efflorescence).

Sampling Procedure (IS 5454:1978):

• Sample size depends on lot size.
• Random sampling from different parts of the lot.
• Number of bricks sampled is specified to ensure representativeness.

Criteria for Conformity:

• Bricks must meet dimensional tolerances (length, width, height) as per IS 3583.
• Efflorescence rating: Nil (no white salt deposits).
• Physical and mechanical properties (compressive strength, water absorption) must comply with IS 3583 limits.

Dimensional Tolerances (Typical from IS 3583):

Summary Diagram: Sampling & Testing Flow

flowchart TD
    A[Lot of Bricks] --> B[Random Sampling as per IS 5454]
    B --> C[Dimensional Measurement]
    B --> D[Efflorescence Test (IS 3495 Part 3)]
    B --> E[Physical Tests (Strength, Absorption)]
    C --> F{Within Tolerance?}
    D --> G{Efflorescence Nil?}
    E --> H{Meets Strength & Absorption?}
    F & G & H --> I{All Yes?}
    I -->|Yes| J[Conformity Confirmed]
    I -->|No| K[Reject Lot / Re-test]

Note: For detailed sampling numbers and test procedures, refer directly to IS 5454:1978 and IS 3495 (Part 3):1976.

IS 3583 Part B - Marking of Clay Building Bricks

Key Specifications for Marking (Clause 6.1 & 6.1.1)

• Each brick shall be marked with the manufacturer's identification mark or initials.
• The Standard Mark may also be applied, indicating compliance with BIS quality control.
• Use of the Standard Mark is regulated by the Bureau of Indian Standards Act, 1986.
• Marking ensures traceability and quality assurance under BIS supervision.

Measurement Tolerances (Clause 3.2)

Additional Notes

• Marking must be clear and durable to withstand handling.
• For licensing and conditions of Standard Mark use, contact BIS directly.

flowchart LR
    A[Brick Manufacture] --> B[Mark with Manufacturer ID]
    B --> C{Apply Standard Mark?}
    C -- Yes --> D[Ensure BIS License]
    C -- No --> E[Proceed with Identification Mark Only]
    D --> F[Continuous BIS Quality Checks]

This marking system ensures product authenticity and compliance with IS 3583 standards.

IS 3583 Part B: Measurement Methods for Clay Building Bricks

Key Specifications & Procedures (Clause 3.2, 3.2.1)

• Sample Size: Select 20 or more bricks randomly.
• Preparation: Remove blisters, loose clay, and projections.
• Arrangement: Place bricks in a straight line in contact (Fig. 1A, 1B, 1C).
• Measurement: Use a steel tape or inextensible measure to record overall length in one stretch.
• If impractical: Divide into rows of 10 bricks, measure separately, then sum.
• No repeated short measurements allowed.

Tolerance Table (Clause 3.2)

Notes on Marking (Clause 6.1.1)

• Bricks may carry the Standard Mark ensuring compliance with BIS quality control and inspection.

Visual Measurement Concept (Fig. 1)

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

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