IS 16389:2015 is the Indian Standard (BIS) for guidelines for use of demolished concrete and masonry waste as recycled aggregate in concrete. This standard provides guidelines for using waste from demolished concrete and masonry structures as aggregate for new concrete. It classifies Recycled Concrete Aggregate (RCA) and Recycled Masonry Aggregate (RMA), specifies their required properties, and recommends permissible replacement levels for various grades and types of concrete to promote sustainability.
Provides guidelines for the utilization of construction and demolition waste as recycled aggregates, promoting circular economy principles.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Water Absorption (Coarse Aggregate) | ≤ 10% | Class H: < 3.0%; Class M: < 5.0%; Class L: < 7.0% | JIS A 5021:2014 |
| Los Angeles Abrasion Value | ≤ 50% | Typically ≤ 40% (Category LA₄₀ is common for structural concrete) | BS EN 12620:2013 |
| Sulfate Content (as SO₃) | ≤ 1.0% by mass | ≤ 0.8% for acid-soluble sulfate (Category AS₀,₈) | BS EN 12620:2013 (as applied in BS 8500-2) |
| Chloride Content (for reinforced concrete) | ≤ 0.15% by mass of aggregate | The limit is on the final concrete mix, but aggregate limits are derived. A common requirement is <0.06% for water-soluble chlorides. | BS 8500-2:2023 |
| Brick Rubble Content (for M25 Concrete) | ≤ 20% by mass of coarse aggregate | Generally prohibited or severely restricted for reinforced structural concrete. Often limited to <5% content in mixed recycled aggregate (RA). | BS 8500-2:2023 |
| Oven Dry Density (Coarse Aggregate) | ≥ 1650 kg/m³ | Class H: ≥ 2400 kg/m³; Class M: ≥ 2200 kg/m³; Class L: ≥ 2000 kg/m³ | JIS A 5021:2014 |