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IS 17565 : 2021Precast Concrete Boundary Wall Components – Specification

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EN 12839 · EN 13369
CurrentFrequently UsedSpecificationBIMStructural Engineering · Precast and Prefabricated Concrete
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OverviewValues7InternationalTablesFAQ5Related

IS 17565:2021 is the Indian Standard (BIS) for precast concrete boundary wall components – specification. This standard specifies the requirements for materials, dimensions, physical properties, manufacturing, and testing of precast concrete components like planks (panels) and posts (columns) used for constructing boundary walls. It aims to standardize the quality, performance, and durability of these widely used precast elements for rapid construction.

Specifies the requirements for precast concrete components used for the construction of boundary walls.

Overview

Status
Current
Usage level
Frequently Used
Domain
Structural Engineering — Precast and Prefabricated Concrete
Type
Specification
International equivalents
EN 12839:2012 · CEN (European Committee for Standardization), EuropeEN 13369:2018 · CEN (European Committee for Standardization), Europe
Typically used with
IS 269IS 383IS 456IS 1786IS 2386IS 10262
Also on InfraLens for IS 17565
7Key values2Tables5FAQs

BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.

Practical Notes
! Pay close attention to the foundation design for the posts, as this is critical for the overall stability of the wall and is not covered by this component specification.
! Ensure proper handling and erection procedures are followed to avoid chipping, cracking, or damage to precast components during transport and installation.
! Always verify the manufacturer's test certificates for compliance with the code, especially for transverse strength and water absorption, before accepting materials at the site.
Frequently referenced clauses
Cl. 4MaterialsCl. 5Dimensions and TolerancesCl. 6Physical RequirementsCl. 7Workmanship and FinishCl. 9Sampling and Criteria for ConformityCl. 10Tests
Pulled from IS 17565:2021. Browse the full clause & table index below in Tables & Referenced Sections.
precast concreteconcretesteel reinforcementboundary walls

International Equivalents

Similar International Standards
EN 12839:2012CEN (European Committee for Standardization), Europe
HighCurrent
Precast concrete products - Elements for fences
Directly covers precast concrete posts and panels for the construction of fences.
EN 13369:2018CEN (European Committee for Standardization), Europe
MediumCurrent
Common rules for precast concrete products
Provides general requirements for materials and manufacturing that are referenced by specific product standards like EN 12839.
Key Differences
≠IS 17565 specifies a minimum concrete grade of M20 (20 MPa cube strength), whereas EN 12839, by referencing EN 206/EN 13369, typically requires a higher minimum class like C25/30 (25 MPa cylinder strength) for durability in external environments.
≠The Indian standard mandates a specific minimum reinforcement cover of 15 mm. The European standard EN 12839 refers to Eurocode 2 (EN 1992-1-1), which dictates cover based on exposure class, often resulting in a larger required cover (e.g., 25-30 mm for external exposure).
≠IS 17565 sets a prescriptive maximum water absorption limit of 10% for panels. In contrast, EN 12839 does not specify a water absorption test, instead relying on performance-based durability requirements like concrete strength, composition (e.g., w/c ratio), and cover to reinforcement.
≠For panel strength, IS 17565 requires a minimum average flexural strength of 2.0 MPa. EN 12839 follows a performance-declaration approach where the manufacturer declares the bending moment capacity, which is then verified, rather than specifying a universal minimum material strength value.
Key Similarities
≈Both IS 17565 and EN 12839 specifically govern the same set of components: precast concrete panels (planks) and columns (posts) used for boundary walls or fences.
≈Both standards establish detailed requirements for the constituent materials, including cement, aggregates, water, admixtures, and reinforcing steel, referencing other primary standards for material quality.
≈A core similarity is the implementation of dimensional and geometric tolerances. Both standards define acceptable deviations for length, width, thickness, straightness, and squareness to ensure manufacturing quality and interchangeability of components.
≈Both standards identify the flexural performance of the panel as a critical attribute and specify test methods to evaluate it, recognizing its importance for the in-service stability of the wall system.
Parameter Comparison
ParameterIS ValueInternationalSource
Minimum Concrete Grade/ClassM20 (Characteristic cube strength 20 MPa)C25/30 (Characteristic cylinder strength 25 MPa) is a common minimum for durability.EN 13369:2018
Minimum Cover to Reinforcement15 mm≥ 25 mm (for typical external exposure class XC4)EN 12839:2012 (via EN 1992-1-1)
Water Absorption (Panel)Max 10% by massNot specified; durability managed via exposure classes, concrete composition and cover.EN 12839:2012
Flexural Strength (Panel)Minimum average 2.0 MPaNo single value; manufacturer declares bending moment capacity (kNm).EN 12839:2012
Length Tolerance (Panel, up to 3m)± 5 mm± 5 mmEN 12839:2012
Thickness Tolerance (Panel)± 2 mm± 3 mmEN 12839:2012
Straightness Tolerance (Panel)3 mm over a 2 m length2 mm over a 1 m lengthEN 12839:2012
⚠ Verify details from original standards before use

Key Values7

Quick Reference Values
Minimum grade of concreteM25
Minimum cement content340 kg/m³
Maximum water-cement ratio0.45
Minimum nominal cover to reinforcement20 mm
Length/width tolerance for panels/posts± 5 mm
Thickness tolerance for panels± 2 mm
Maximum water absorption7 percent by mass

Tables & Referenced Sections

Key Tables
Table 1 - Tolerances on Dimensions of Precast Concrete Boundary Wall Components
Table 2 - Physical Requirements for Precast Concrete Boundary Wall Components
Key Clauses
Clause 4 - Materials
Clause 5 - Dimensions and Tolerances
Clause 6 - Physical Requirements
Clause 7 - Workmanship and Finish
Clause 9 - Sampling and Criteria for Conformity
Clause 10 - Tests

Related Resources on InfraLens

Cross-Referenced Codes
IS 269:2015Ordinary Portland Cement - Specification
→
IS 383:2016Coarse and Fine Aggregates for Concrete - Spe...
→
IS 456:2000Plain and Reinforced Concrete - Code of Pract...
→
IS 1786:2008High Strength Deformed Steel Bars and Wires f...
→
IS 2386:1963Methods of Test for Aggregates for Concrete -...
→
IS 10262:2019Concrete Mix Proportioning - Guidelines
→

Frequently Asked Questions5

What is the minimum grade of concrete for precast wall components?+
M25 is the minimum grade of concrete to be used (Clause 4.2).
What are the dimensional tolerances for the length of a precast panel?+
The tolerance on length and width for both panels and posts is ±5 mm (Table 1).
What is the minimum required cover for the steel reinforcement?+
A minimum nominal cover of 20 mm shall be provided to all reinforcement (Clause 6.2).
What key strength test is required for the precast panels (planks)?+
A transverse strength test is required. The component should not fail when subjected to a load specified by the manufacturer (Clause 10.3).
What is the maximum permissible water absorption?+
The maximum water absorption shall not be more than 7 percent by mass (Table 2).

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