Bitumen-based felts - Methods of the test, Part 3: Storage sticking test

IS 13826 Part 3: Scope Summary & Key Points

Scope:

• Specifies the method for determining storage sticking property of bitumen-based felts.
• Applies to felts used for waterproofing and damp-proofing.
• Uses definitions from IS 4911:1986 (glossary for bituminous waterproofing).
• Part of a series covering different tests on bitumen felts:
  • Part 1: Breaking Strength Test
  • Part 2: Pliability Test
  • Part 3: Storage Sticking Test (this part)
  • Part 4: Pressure Head Test
  • Part 5: Heat Resistance Test
  • Part 6: Water Absorption Test
  • Part 7: Determination of Binder Content

Key Specifications & Test Procedure (Clause 5.2.2 & 5.1)

• Test specimen size: 100 mm × 100 mm
• Number of specimens: 4 pieces per sample
• Test duration: Load applied for 18 hours, then released
• Evaluation: Check if felt layers separate without damaging coats

Table Extract (Simplified)

Notes:

• The test simulates storage conditions to ensure felts do not stick and degrade during transport/storage.
• Ensures quality and usability of waterproofing felts in the field.

flowchart LR
    A[Test Specimen Prep: 100x100 mm] --> B[Apply Load]
    B --> C[Maintain Load for 18 hrs]
    C --> D[Release Load]
    D --> E[Check Layer Separation]
    E --> F{Damage?}
    F -->|No| G[Pass]
    F -->|Yes| H[Fail]

For detailed test setup, refer to Fig. 1 in IS 13826 Part 3 and related clauses.

IS 13826 Part 3: Storage Sticking Test - Key References & Specifications

• Scope: Method to determine storage sticking property of bitumen felts.

• Test Procedure (Clause 5.2.2):

  • Load applied on test pieces for 18 hours.
  • After 18 hours, load released, test pieces removed and checked for separation without damage.

• Related Standards:

  • IS 1322: Specification for bitumen felts for waterproofing and damp-proofing.
  • IS 7193: Specification for glass fibre base coal tar pitch and bitumen felts.
  • IS 13826 Parts 1, 2, 4, 5, 6, 7 cover other tests like breaking strength, pliability, pressure head, heat resistance, water absorption, binder content.

• Rounding Off: Follow IS 2:1960 for rounding test results.

Summary Table of IS 13826 Series Tests

Storage Sticking Test Setup (Fig. 1 - Arrangement)

flowchart LR
    A[Bitumen Felt Layers] --> B[Apply Load]
    B --> C[Wait 18 Hours]
    C --> D[Release Load]
    D --> E[Check Separation without Damage]

Use this test to ensure felts do not stick irreversibly during storage, preserving quality and usability.

IS 13826 Part 3: Definitions & Key Specifications Summary

• Reference for Definitions:
  All definitions related to bitumen felts in this standard refer primarily to IS 4911:1986 (Glossary of terms for bituminous waterproofing and damp-proofing).

• Scope:
  This part covers the Storage Sticking Test for bitumen felts, assessing whether layers of felt stick together during storage without damaging the coating.

• Test Specimen:

  • Size: 100 mm x 100 mm
  • Number: 4 pieces per sample

• Testing Procedure (Clause 5.2.2):

  • Load applied for 18 hours
  • After release, test pieces are checked for separation without damage

• Purpose:
  To ensure the felt can be stored without layers sticking irreversibly, maintaining product integrity.

Summary Table: Test Specimen & Duration

Reference Standards for Related Tests

This concise overview aligns with IS 13826 Part 3 and its reliance on IS 4911 for terminology. For detailed test methods and acceptance criteria, refer directly to the clauses in IS 13826 Part 3.

IS 13826 Part 3: Apparatus Specifications for Storage Sticking Test

Key Apparatus Details (Clauses 4.1 & 5.2.1)

• Chamber:

  • Equipped with a thermostat
  • Maintains constant temperature of 55 ± 2°C (or higher as per felt type)
  • Duration: 18 hours

• Test Setup:

  • Four test pieces stacked vertically inside the chamber
  • Applied constant pressure: 0.7 kg/cm²
  • Temperature maintained at 55 ± 2°C for 18 hours

Procedure Summary (Clause 5.2.2)

• After 18 hours, release load and remove test pieces
• Check if felt layers separate without damage

Apparatus Arrangement (Fig. 1 Summary)

flowchart TB
    A[Test Chamber]
    B[Four Test Pieces]
    C[Pressure Plate applying 0.7 kg/cm²]
    D[Thermostat maintaining 55±2°C]

    A --> B
    B --> C
    A --> D

Important Notes:

• The test ensures felt’s resistance to sticking under heat and pressure.
• The pressure of 0.7 kg/cm² is critical for simulating field conditions.
• Temperature control ±2°C ensures test repeatability.

This setup is essential for quality control of waterproofing felts per IS 13826 Part 3.

IS 13826 Part 3: Test Specimen Preparation & Storage Sticking Test

Specimen Preparation (Clause 5.1)

• Size: Four test pieces of 100 mm x 100 mm from each sample.
• Cut carefully to avoid damage.

Test Setup (Clause 5.2.1)

• Stack the 4 pieces one above the other.
• Place in test chamber.
• Apply constant pressure of 0.7 kg/cm².
• Maintain temperature at 55 ± 2°C.
• Duration: 18 hours.

Post-Test (Clause 5.2.2)

• Release load after 18 hours.
• Remove test pieces.
• Check if felt layers separate without damage to coats.
• Report results as pass/fail based on separation integrity.

Summary Table: Storage Sticking Test Parameters

Diagram: Test Piece Arrangement (Fig. 1)

graph TD
    A[Test Piece 1]
    B[Test Piece 2]
    C[Test Piece 3]
    D[Test Piece 4]
    E[Pressure Plate]
    A --> B --> C --> D
    E -. applies pressure .-> D

This method ensures the bitumen felt's resistance to sticking during storage, critical for quality control in waterproofing applications.

IS 13826 Part 3: Test Procedure Summary

Test Specimen Preparation (Clause 5.1)

• Cut four test pieces of size 100 mm x 100 mm from each sample.

Test Setup (Clause 5.2.1)

• Stack the four test pieces one above the other in the chamber (see Fig. 1).
• Apply a constant pressure of 0.7 kg/cm².
• Maintain chamber temperature at 55 ± 2°C.
• Duration: 18 hours.

Post-Test Evaluation (Clause 5.2.2)

• After 18 hours, release load and remove test pieces.
• Check if felt layers separate without damaging the coats.
• Report should confirm if felt layers can be separated without damage.

Key Specifications Table

Diagram: Arrangement for Storage Sticking Test (Fig. 1)

graph TB
    A[Test Chamber]
    B[Test Piece 1 (bottom)]
    C[Test Piece 2]
    D[Test Piece 3]
    E[Test Piece 4 (top)]
    A --> B --> C --> D --> E
    style A fill:#f9f,stroke:#333,stroke-width:2px
    style B fill:#bbf,stroke:#333
    style C fill:#bbf,stroke:#333
    style D fill:#bbf,stroke:#333
    style E fill:#bbf,stroke:#333

This procedure ensures the felt's resistance to sticking under pressure and temperature, critical for waterproofing quality control.

IS 13826 Part 3: Test Conditions for Storage Sticking Test

Key Test Conditions (Clause 5.2.1 & 5.2.2)

• Number of test pieces: 4 pieces stacked one above the other (see Fig. 1).
• Pressure applied: Constant pressure of 0.7 kg/cm².
• Duration: 18 hours.
• Temperature: Maintained at 55 ± 2°C in a thermostatically controlled chamber.
• After 18 hours, pressure is released, and test pieces are inspected for separation without damage to the felt coats.

Summary Table: Storage Sticking Test Conditions

Test Purpose

• To verify if the bitumen felt layers can be separated after storage under pressure and elevated temperature without damage.

flowchart LR
    A[Test Pieces (4 stacked)] --> B[Apply Pressure 0.7 kg/cm²]
    B --> C[Maintain Temp 55 ± 2°C]
    C --> D[Hold for 18 hours]
    D --> E[Release Pressure and Inspect]
    E --> F{Layers Separate Without Damage?}

This test ensures durability and usability of bitumen felts in storage and handling conditions.

IS 13826 Part 3: Observations and Reporting for Storage Sticking Test

Key Specifications (Clause 5.2.2):

• Test duration: Load applied for 18 hours.
• After 18 hours: Load is released; test pieces are removed for inspection.
• Observation: Report must state if felt layers can be separated without damage to the coats.

Test Specimen Preparation (Clause 5.1):

• Take four test pieces of size 100 mm x 100 mm from each sample.

Reporting Requirements:

• Indicate clearly if the layers of felt separate easily.
• Note any damage to coating or adhesion failure.
• Use qualitative description supported by visual inspection.

Summary Table for Test Procedure:

flowchart LR
    A[Prepare 4 test pieces 100x100 mm] --> B[Apply load]
    B --> C[Maintain load for 18 hours]
    C --> D[Release load]
    D --> E[Remove and inspect test pieces]
    E --> F{Layers separate without damage?}
    F -->|Yes| G[Report: Pass]
    F -->|No| H[Report: Fail]

This ensures consistent evaluation of storage sticking per IS 13826 Part 3.

IS 13826 Part 3 does not explicitly specify detailed rules for Rounding Off of Results in the provided context. However, based on standard BIS practices and general engineering norms:

Key Guidelines for Rounding Off Results:

• Rounding off should be done to a consistent number of decimal places relevant to the precision of measurements.
• Typically, 2 decimal places are used for percentage values and test results unless otherwise specified.
• For dimensions or quantities, rounding is done to the nearest unit or specified decimal place as per test accuracy.
• When reporting test results (e.g., after 18 hours load release in Clause 5.2.2), indicate values clearly, avoiding over-precision that implies false accuracy.

General Practice (BIS & IS standards):

Example:

If a test result is 12.34567, report as 12.35 (2 decimal places) unless stated otherwise.

Summary:

• Follow consistent decimal places.
• Align rounding with instrument precision.
• Avoid reporting more digits than meaningful.

If IS 13826 Part 3 is silent, follow IS 2: 1960 (Rules for rounding off numerical values and arithmetic operations) for detailed rounding rules.

flowchart TD
    A[Measurement Result] --> B{Precision Known?}
    B -- Yes --> C[Round to instrument accuracy]
    B -- No --> D[Round to 2 decimal places]
    C --> E[Report Result]
    D --> E

This ensures clarity and uniformity in test reporting.

IS 13826 Part 3 (1993) — Committee Composition Summary

The Water-proofing and Damp-proofing Sectional Committee, CED 41 is composed of experts from diverse organizations representing government, industry, research, and consultancy. Key points:

• Chairman: Prof. M. S. Shetty (Personal capacity)
• Members: Include representatives from:
  • Chemical companies (e.g., Osnar Chemical Pvt Ltd)
  • Testing agencies (National Test House)
  • Government research institutes (Central Road Research Institute, Central Building Research Institute)
  • Public Works Departments and Metro Railways
  • Private companies specializing in waterproofing and construction materials
  • Military engineering branches (Engineer-in-Chief's Branch, Army HQ)
  • Alternate members accompany most primary members

Notes:

• The committee ensures standardization and quality control in waterproofing materials.
• The committee composition reflects multidisciplinary expertise for comprehensive standard development.

If you need formulas or tables for testing or specifications, please specify the clause or section. This part mainly lists committee members and their affiliations.