bitumen primer for use in waterproofing and damp-proofing

IS 3384: Scope & Key Specifications Summary

Scope:
IS 3384 specifies methods for testing tar and bituminous materials, primarily primers used in waterproofing and damp-proofing.

Key Formulas for Test Evaluation (Clause 3.2):

For viscosity or penetration test results:

• Calculate mean ( \bar{X} ) and range ( R ) from samples.
• Ensure:
  [ (\bar{X} - 0.6R) \geq \text{Minimum limit} ] [ (\bar{X} + 0.6R) \leq \text{Maximum limit} ]

Primer Requirements (Table 1, Clause 3.1):

Notes:

• Definitions per IS 4911-1968 apply.
• Composite samples must satisfy all characteristic requirements (Clause 3.3).
• Tests ensure quality and conformity of primers for waterproofing.

flowchart TD
    A[Sample Test Results] --> B[Calculate Mean

IS 3384: Definitions & Key Specifications Summary

1. Definitions

• Refer to IS 4911-1968 for glossary of terms related to bituminous waterproofing and damp-proofing.

2. Conformity Criteria (Clause 3.2)
Calculate mean (X) and range (R) from test results (viscosity or penetration):

[ \begin{cases} X - 0.6R \geq \text{Minimum Specified Limit} \ X + 0.6R \leq \text{Maximum Specified Limit} \end{cases} ]

3. Primer Requirements (Table 1, Clause 3.1)

Visual Summary of Conformity Check

flowchart TD
    A[Test Results] --> B[Calculate Mean (X) & Range (R)]
    B --> C{Check Conditions}
    C -->|X - 0.6R ≥ Min Limit| D[Pass Lower Limit]
    C -->|X + 0.6R

IS 3384: Primer Requirements Summary

Key Formula for Conformity (Clause 3.2: A-3.2)

For test results (viscosity or penetration):

• Let X = mean of test results
• Let R = range of test results

The primer conforms if:

• ( X - 0.6R \geq ) Minimum specified limit
• ( X + 0.6R \leq ) Maximum specified limit

Primer Requirements (Table 1, Clause 3.1)

Notes:

• All tests must comply with the referenced IS standards.
• The primer must meet all specified limits for acceptance.
• The conformity formula ensures consistency and quality control.

flowchart LR
    A[Test Results] --> B[Calculate Mean (X) and Range (R)]
    B --> C{Check Conditions}
    C -->|

IS 3384: Marking Specifications for Primer Containers

Key Marking Requirements (Clause 4.1)

Each primer container shall be legibly and indelibly marked with:

• Manufacturer's name and trade-mark (if any)
• Date of manufacture
• Batch number
• Grade of bitumen used in primer

Optional Marking (Clause 4.1.1)

• ISI Certification Mark may be included, indicating compliance with IS standards and quality control.

Criteria for Conformity (Clause 3.2)

For characteristics like viscosity or penetration, calculate:

• Mean: ( \bar{X} )
• Range: ( R )

The sample passes if:

[ \begin{cases} \bar{X} - 0.6R \geq \text{Minimum specified limit} \ \bar{X} + 0.6R \leq \text{Maximum specified limit} \end{cases} ]

Summary Table for Marking

This ensures traceability, quality assurance, and conformity to IS 3384 standards.

IS 3384: Sampling and Criteria for Conformity

Sampling (Appendix A, Clause 1.2)

• Number of containers/bags to select depends on lot size:

Sample Preparation (Clause A-2.2)

• For flash point, residue up to 360°C, water content, and other residue tests (except ductility at 27°C), prepare a composite sample by mixing equal quantities from individual samples.

Criteria for Conformity (Clause A-3.3)

• The composite sample must satisfy all specified requirements for the tested characteristics (per A-2.2).

Summary Flowchart

flowchart TD
    A[Select Lot] --> B[Determine No. of Containers to Sample (Table 2)]
    B --> C[Draw Individual Samples]
    C --> D[Prepare Composite Sample (Equal Mix)]
    D --> E[Test for Characteristics (Flash Point, Residue, Water Content, etc.)]
    E --> F{Meets Requirements?}
    F -- Yes --> G[Accept Lot]
    F -- No --> H[Reject Lot]

Key Points:

• Sampling size is proportional to lot size.
• Composite samples ensure representativeness.
• Conformity is based on composite sample test results.

IS 3384 Sampling Procedures Summary

Number of Containers to be Sampled (Clause 1.2, Table 2)

Sampling Method (Clause 1.3)

• From each selected container, draw an average representative sample as per IS 1201-1978.
• Samples from each container are stored separately.
• Follow all precautions detailed in IS 1201-1978 for representative sampling.

Criteria for Conformity (Clause 5.1 & Appendix A)

• Composite sample tested must satisfy the characteristics requirements as per Appendix A.
• Testing methods for tar and bituminous materials are referenced.

Sampling Flowchart

flowchart TD
    A[Determine Lot Size] --> B[Select No. of Containers per Table 2]
    B --> C[Draw Average Sample from Each Container (IS 1201-1978)]
    C --> D[Store Samples Separately]
    D --> E[Composite Sample Testing]
    E --> F{Satisfies Criteria?}
    F -->|Yes| G[Accept Lot]
    F -->|No| H[Reject Lot]

This ensures statistically valid sampling for quality control of bituminous materials per IS 3384.

IS 3384: Testing Methods for Samples - Key Points

Sampling Procedure (Clause 5.1 & Appendix A)

• Representative samples must be drawn from each selected container per IS 1201-1978.
• Samples from each container are stored separately.
• Number of containers selected depends on lot size (Table 2):

Criteria for Conformity (Clause 3.3)

• Composite sample tested for characteristics must meet prescribed requirements (see Appendix A-2.2 for specific properties).

Summary:

• Follow IS 1201-1978 for sampling technique.
• Use Table 2 to determine sample size.
• Test composite samples for conformity as per IS 3384 requirements.

flowchart TD
    A[Lot of Containers] --> B[Select Containers as per Table 2]
    B --> C[Draw Representative Samples per IS 1201-1978]
    C --> D[Store Samples Separately]
    D --> E[Test Composite Sample for Characteristics]
    E --> F{Meets IS 3384 Criteria?}
    F -- Yes --> G[Accept Lot]
    F -- No --> H[Reject Lot]

This ensures statistically valid sampling and reliable testing of tar/bituminous materials.

IS 3384: Criteria for Conformity Summary

• Lot conformity (Clause 3.1 & A-3.1): A lot is conforming if conditions in A-3.2 and A-3.3 are met.

• Sampling method (Clause 5.1 & Appendix A): Representative samples are drawn as per Appendix A. Composite samples are prepared by mixing equal quantities of individual samples.

• Testing requirements (Clause A-2.2 & A-3.3):

  • Composite sample tested for:
    • Flash point
    • Residue from distillation up to 360°C
    • Water content
    • Tests on residue except ductility at 27°C
  • Composite sample must satisfy all specified characteristics.

Table: Criteria for Conformity (Summary from Clause 3.3)

Key Points:

• Composite sample testing ensures uniformity.
• Individual samples are combined equally.
• Lot accepted only if all test results meet specification.

flowchart TD
    A[Draw Individual Samples] --> B[Mix Equal Quantities]
    B --> C[Composite Sample]
    C --> D{Test Characteristics}
    D -->|Pass| E[Lot Conforms]
    D -->|Fail| F[Lot Rejected]

This ensures the entire lot meets IS 3384 quality standards.

IS 3384: Sampling & Conformity Requirements

1. Sampling - Number of Containers (Table 2)

2. Criteria for Conformity (Clause 3.2)

For viscosity or penetration tests, calculate:

• Mean, ( \bar{X} )
• Range, ( R )

Conditions to satisfy:

[ \begin{cases} \bar{X} - 0.6R \geq \text{Minimum Specified Limit} \ \bar{X} + 0.6R \leq \text{Maximum Specified Limit} \end{cases} ]

3. Sampling Method

• Draw representative samples as per Appendix A.
• Composite sample tested for specified characteristics must meet the criteria.

This ensures statistically valid sampling and conformity evaluation for tar and bituminous materials per IS 3384.