Chemical Resistant Mortars, Part II: Resin type

IS 4832 Part 2: Introduction - Key Specifications for Resin Type Chemical Resistant Mortars

Physical Requirements (Table 1 Summary)

• Note: Bond strength test joint shall not fail below specified values.
• Retest Clause: If initial test fails, a second sample is tested; failure again leads to lot rejection (Clause 3.3).

Additional Notes:

• Working temperature for tests: 27° ± 2°C.
• Amendment: Maximum batch size reduced from 1000 kg to 500 kg.
• Chemical resistance guide available in IS:4443-1980 Table 1.

flowchart TD
    A[Sample from Lot] --> B{Test Compliance?}
    B -- Yes --> C[Accept Lot]
    B -- No --> D[Retest Sample]
    D --> E{Retest Compliance?}
    E -- Yes --> C
    E -- No --> F[Reject Lot]

This diagram illustrates the acceptance/rejection procedure per Clause 3.3.

IS 4832 Part 2 - Scope & Key Specifications for Resin Type Chemical Resistant Mortars

Scope (Clause 2.0 & 3.1)

• Defines requirements for resin-based chemical resistant mortars.
• Mortars types: Phenolic, Furane, Epoxy, Polyester.
• Testing per IS 4456 (Part I) - 1967 methods.
• Lot acceptance: All test results must meet Table 1 criteria.

Key Physical Requirements (Table 1)

Notes

• Bond strength test: Joint failure shall not occur at or below specified values.
• Working time ensures adequate handling before setting.

Summary Diagram of Test Flow

flowchart TD
    A[Sample Mortar Lot] --> B[Take Specimens]
    B --> C[Test Working Time]
    B --> D[Test Flexural Strength]
    B --> E[Test Compressive Strength]
    B --> F[Test Bond Strength]
    B --> G[Test Absorption]
    C --> H{Meets Requirements?}
    D --> H
    E --> H
    F --> H
    G --> H
    H -->|Yes| I[Lot Accepted]
    H -->|No| J[Lot Rejected]

This concise summary

IS 4832 Part 2 – Definitions & Key Specifications for Resin Type Chemical Resistant Mortars

Definitions (Clause 2.0)

• Defines terms specific to resin type chemical resistant mortars used in this standard.

Physical Requirements (Clause 3.1, Table 1)

General Requirements (Clauses 3.2 & 3.3)

• A lot passes if all tests meet Table 1 requirements.
• If failed, a second sample is tested; failure again results in lot rejection.

Additional Notes:

• Chemical resistance guide: See Table 1 of IS:4443-1980.
• Working time and strength values are critical for quality control.
• Bond strength test ensures adhesion integrity.

flowchart TD
    A[Sample from Lot] --> B{Test per Table 1}
    B -- Pass --> C[Lot Accepted]
    B -- Fail --> D[Retest with 2nd Sample]
    D -- Pass --> C
    D -- Fail --> E[Lot Rejected]

This concise summary helps ensure compliance with IS 4832 Part 2 for resin type chemical resistant mortars.

IS 4832 Part 2: Key Specifications for Resin Type Chemical Resistant Mortars

1. Physical Requirements (Table 1)

• Note: Bond strength test joint shall not fail below specified value.
• Retesting required if initial sample fails; rejection if second sample fails (Clause 3.3).

2. Material Packaging & Catalyst (Clause 3.3)

• Catalyst can be pre-mixed with fillers or supplied separately.
• Packaging varies by resin type:
  • Phenolic/Furane: 2 packs (resin + filler)
  • Epoxy: 3 packs (resin + hardener + filler)
  • Polyester: 3 or 4 packs

3. Reference for Chemical Resistance

• See IS:4443-1980 Table 1 for chemical resistance guidance.

This concise summary helps ensure compliance with IS 4832 Part 2 for resin mortars in chemical resistance applications.

IS 4832 Part 2 — Physical Requirements for Resin Type Chemical Resistant Mortars

Additional Notes:

• Sampling & Testing: Specimens must be tested as per Table 1. If initial tests fail, a second sample is tested. Failure again leads to rejection of the lot.
• Chemical Resistance Guide: Refer IS:4443-1980 Table 1 for chemical resistance of resin mortars.
• Amendment: Minimum batch size reduced to 500 kg.

Summary Flow for Lot Acceptance:

flowchart TD
    A[Take sample from lot] --> B[Test all properties per Table 1]
    B -->|Pass| C[Lot accepted]
    B -->|Fail| D[Take second sample]
    D --> E[Test second sample]
    E -->|Pass| C
    E -->|Fail| F[Lot rejected]

This ensures quality compliance per IS 4832 Part 2.

IS 4832 Part 2: General Requirements for Resin Type Chemical Resistant Mortars

Key Specifications (from Table 1, Clause 3.1):

• Note: Bond strength test joint must not fail at or below specified values.

General Requirements (Clauses 3.1 to 3.3):

• Sampling & Testing: Specimens must be taken from each lot and tested as per Table 1.
• Acceptance: Lot passes if all tests meet Table 1 requirements.
• Re-test: If initial tests fail, a second sample is tested. Failure again leads to lot rejection.

Additional Notes:

• Amendment (1981) reduces minimum batch size from 1000 kg to 500 kg.
• Chemical resistance guide available in IS 4443-1980 Table 1.
• Testing methods refer to IS 4456 Part 1 (1967) for resin mortars.

flowchart TD
    A[Sample Lot] --> B[Test Specimens]
    B --> C{Test Results}
    C -->|Pass| D[Lot Accepted]
    C -->|Fail| E[Retest with New Sample]
    E --> F{Retest Results}
    F -->|Pass| D
    F -->|Fail| G[Lot Rejected]

This summarizes the general requirements and key

Key Chemical Resistance Requirements from IS 4832 Part 2 (Resin Type Mortars):

1. Physical Requirements (Table 1 Summary)

• Note: Bond strength tests must not fail at or below specified values.

2. Retesting Clause (3.3)

• If initial sample fails, a second sample from the same lot is tested.
• Failure of second sample leads to rejection of the lot.

3. Additional Specifications

• Minimum joint thickness: 1.5 mm
• Resin viscosity: Must allow manual mixing with powder.
• Chemical resistance limits to be agreed between purchaser and supplier (Clause 6.1).
• Refer to IS:4443-1980 for chemical resistance guide of resin mortars.

Summary Diagram of Testing Flow

flowchart TD
    A[Sample from Lot] --> B{Test as per Table 1}
    B -- Pass --> C[Accept Lot]
    B -- Fail --> D[Retest Second Sample]
    D -- Pass --> C
    D -- Fail --> E[Reject Lot]

References:

• IS 4832 (Part II) - 1969
• IS 4456 (Part I) - 1967 (Test Methods)
• IS 4443 - 1980 (Chemical Resistance Guide)

Shelf-life and Storage Specifications (IS 4832 Part 2 - 1969)

Shelf-life (Clauses 7.1 & 7.2)

• Phenolic & Polyester resins: ~3 months at 27° ± 2°C
• Furane & Epoxy resins: ~12 months at 27° ± 2°C
• Manufacturer must clearly specify maximum shelf-life for both dry-mix and resin.

Storage Requirements (Clause 9.1)

• Resins to be packed in airtight sealed containers.
• Fillers packed to prevent deterioration.
• Package labeling must include:
  • Manufacturer's name
  • Product name
  • Date of manufacture/batch number
  • Storage requirements
  • Storage life
  • Date of expiry

Key Physical Requirements (Clause 3.1, Table 1)

Summary Diagram of Storage & Shelf-life Flow

flowchart TD
    A[Manufacture Resin/Dry-mix] --> B[Pack in Airtight Containers]
    B --> C[Label Package with Details]
    C --> D[Store at 27° ± 2°C]
    D --> E{Shelf-life?}
    E -->|Phenolic/Polyester| F[3 Months]
    E -->|Furane/Epoxy| G[12 Months]
    F & G --> H[Use Before Expiry Date]

Note: Adhering to

IS 4832 Part 2: Sampling and Criteria for Conformity

Sampling Procedure (Clause 8.1 & Appendix A)

• Lot Definition: A lot is a batch of material produced under similar conditions.
• Sample Selection: Samples must be drawn representatively from each lot separately.
• Number of Samples: As per Appendix A, typically a specified number depending on lot size (refer to IS 2500 or IS 4905 for detailed sampling sizes).
• Testing: Each sample is tested for all relevant parameters.

Criteria for Conformity (Clause 3.2 & 8.1)

• A lot is accepted only if all test results from the samples meet the specification requirements.
• If any test fails, the entire lot is rejected or subjected to re-sampling/testing.

Summary Table: Sampling & Acceptance

flowchart TD
    Lot[Lot of Material]
    Sample[Draw Representative Samples]
    Test[Test Each Sample]
    Check{All Tests Passed?}
    Accept[Accept Lot]
    Reject[Reject Lot]
    
    Lot --> Sample --> Test --> Check
    Check -- Yes --> Accept
    Check -- No --> Reject

For exact sample sizes and detailed procedures, refer to Appendix A of IS 4832 Part 2 and related sampling standards (IS 2500).

IS 4832 Part 2: Packing and Marking Summary

Packing (Clause 9.1)

• Resin: Sealed airtight containers.
• Filler: Proper packing to prevent deterioration.

Marking on Each Package (Clause 9.1)

• Name of manufacturer
• Product name
• Date of manufacture / Batch No.
• Storage requirements
• Storage life
• Date of expiry

Optional Marking (Clause 9.1.1)

• ISI Certification Mark (subject to ISI rules)

Key Physical Requirements of Resin Type Chemical Resistant Mortars (Table from Clause 3.1)

Note: Bond strength test must ensure failure does not occur at or below specified values.

Summary Diagram: Packing & Marking Flow

flowchart TD
    A[Start: Resin & Filler Ready] --> B{Packing}
    B -->|Resin| C[Sealed Airtight Containers]
    B -->|Filler| D[Proper Packing to Prevent Deterioration]
    C & D --> E[Marking on Package]
    E --> F[Manufacturer Name]
    E --> G[Product Name]
    E --> H[Date of Manufacture/Batch No.]
    E --> I[Storage Requirements]
    E --> J[Storage Life]
    E --> K[Date of Expiry]
    E --> L{Optional: ISI Mark}

IS 4832 Part 2: Sampling Procedure for Acceptance Test (Appendix A)

• Lot Definition: Samples are taken from each lot separately to verify conformity (Clause A-1.2).
• Acceptance Criteria: A lot is accepted only if all test results meet the specification requirements (Clause A-3.2).
• Sampling Method: Specimens are taken from the mortar sample for testing all parameters listed in Table 1 of IS 4832 Part 2 (Clause A-3.1).

Key Points:

Typical Tests from Table 1 (examples):

• Compressive strength
• Consistency
• Setting time
• Soundness

flowchart TD
    A[Start: Identify Lot] --> B[Randomly select samples]
    B --> C[Test all specimens as per Table 1]
    C --> D{Do all results meet specs?}
    D -- Yes --> E[Accept Lot]
    D -- No --> F[Reject Lot]

This ensures quality control by strict sampling and testing as per IS 4832 Part 2.