IS 3597:1998 is the Indian Standard (BIS) for concrete pipes - methods of test. This standard specifies the methods for testing concrete pipes, including reinforced, unreinforced, and prestressed types. It details the procedures for conducting hydrostatic, three-edge bearing, absorption, permeability, and straightness tests to evaluate structural integrity and watertightness.
Concrete pipes - Methods of test
Overview
- Status
- Current
- Usage level
- Specialized
- Domain
- Water Resources — Cement Matrix Products
- Type
- Testing Method
Also on InfraLens for IS 3597
Practical Notes
! During the three-edge bearing test, ensure the load is applied continuously and uniformly along the entire effective length of the pipe barrel.
! For the hydrostatic test, all air must be bled from the pipe before full pressure is applied to prevent explosive failure.
! Absorption test specimens must represent the full thickness of the pipe wall and be free from visible cracks.
Frequently referenced clauses
concretereinforced concreteprestressed concrete
International Equivalents
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Key Values4
Quick Reference Values
Oven drying temperature for absorption test105°C to 115°C
Boiling time for water absorption test5 hours
Crack width measured during bearing test0.25 mm
Weighing balance accuracy for absorption test0.1 percent of specimen mass
Key Formulas
Water Absorption (%) = [(M2 - M1) / M1] x 100 — where M1 is dry mass and M2 is wet mass
Crushing Load (kN/m) = Total applied load (P) / Effective length of pipe (L)
Tables & Referenced Sections
Key Clauses
Clause 4 - Hydrostatic Test
Clause 5 - Three-Edge Bearing Test
Clause 6 - Absorption Test
Clause 7 - Permeability Test
Clause 8 - Straightness Test
Frequently Asked Questions3
What is the purpose of the three-edge bearing test?+
It determines the ultimate crushing strength of the concrete pipe and the load at which a 0.25 mm wide crack occurs.
How is the water absorption test conducted?+
A specimen is dried at 105-115°C to a constant mass, then boiled in water for 5 hours, cooled, and weighed to calculate the percentage mass increase.
How is a 0.25 mm crack verified during load testing?+
A standard feeler gauge of 0.25 mm thickness is inserted into the crack to verify its width under continuous loading.
QA/QC Inspection Templates
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QA/QC templates coming soon for this code.