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IS 13026:1991 is the Indian Standard (BIS) for bitumen mastic for flooring for industries handling lpg and other light hydrocarbon products. This standard specifies the requirements for two grades of bitumen mastic used for flooring in industries handling LPG and other light hydrocarbon products. It covers the material composition, physical properties like hardness and binder content, and methods for testing. The standard provides guidance to ensure a durable, spark-proof, and chemically resistant flooring surface suitable for hazardous environments.
bitumen mastic for flooring for industries handling LPG and other light hydrocarbon products
Overview
Status
Current
Usage level
Specialized
Domain
Materials Science — Flooring, Wall Finishing and Roofing
BS 6925:1988BSI - British Standards Institution, UK
HighWithdrawn
Specification for mastic asphalt for building and civil engineering (limestone aggregate)
Specifies material composition and properties for mastic asphalt, including grades for flooring (Type F), similar to the material specs in IS 13026.
BS 8204-5:2002+A1:2011BSI - British Standards Institution, UK
HighWithdrawn
Screeds, bases and in-situ floorings. Mastic asphalt underlays and floorings. Code of practice
Provides a code of practice for applying mastic asphalt flooring, mirroring the application guidance aspect of IS 13026.
BS EN 13108-6:2016CEN - European Committee for Standardization (BSI in UK)
MediumCurrent
Bituminous mixtures. Material specifications. Mastic Asphalt
Current European material specification for Mastic Asphalt, but is performance-based and primarily for trafficked areas, not a specific code for industrial flooring.
Key Differences
≠IS 13026 is a comprehensive document combining material specifications and a code of practice for application. Modern European standards separate these, with material specifications (e.g., BS EN 13108-6) and application codes (like the withdrawn BS 8204-5) being distinct documents.
≠IS 13026 specifies the use of a proprietary 'special compound' to be blended with bitumen to achieve hydrocarbon resistance. International standards, particularly modern ones, are more performance-based and allow for various polymer modifications (e.g., SBS, EVA) to achieve fuel resistance without prescribing a specific additive.
≠The hardness (indentation) test method and conditions differ. IS 13026 specifies a test at 35°C with a 3.17 mm pin, while the historical BS 6925 used a test at 25°C, and the current BS EN 13108-6 specifies indentation classes at both 25°C and 40°C with different test parameters.
Key Similarities
≈The fundamental composition of the material is the same: a hot-mixed, dense, voidless mixture of bitumen binder, fine mineral aggregate, and filler.
≈The method of application is traditional and similar, involving heating the mastic in a specialized cooker with agitation and laying it hot by hand using wooden floats to form a seamless surface.
≈Both the Indian standard and international practices (e.g., BS 8204-5) recommend the application of coarse sand or stone chippings onto the hot surface of the mastic to improve grip, wear resistance, and surface appearance.
≈The inclusion of a hardness or indentation test is a common requirement, as it is a critical performance indicator for flooring to resist deformation from point loads and traffic.
Parameter Comparison
Parameter
IS Value
International
Source
Soluble Bitumen Content (% by mass of mix)
14.0% to 17.0%
13.0% to 16.0% (for Type F Flooring)
BS 6925:1988
Filler Content (passing 75μm sieve, % by mass of mix)
Approx. 17% to 26% (calculated from spec of 20-30% of aggregate)
20.0% to 30.0% (for Type F Flooring)
BS 6925:1988
Hardness (Indentation)
Max 1.5 mm depth @ 35°C (3.17 mm pin, 34.3 N load, 1 min)
1.0 to 4.0 mm depth @ 25°C (different test method per BS 5284)
BS 6925:1988 (for Type F)
Application Temperature
175°C to 200°C
200°C to 230°C
BS 8204-5:2002
Nominal Layer Thickness
25 mm (single layer)
20 to 25 mm (often specified in two layers for industrial use)
BS 8204-5:2002
⚠ Verify details from original standards before use