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20mm Crushed Stone Aggregate – Most widely used material for RCC, beams, slabs, and foundations due to its strength and load-bearing capacity.
⚙️ Technical Specifications
| Specification | Details |
|---|---|
| Size | 20mm (Passing 25mm Sieve) |
| Type | Coarse Crushed Stone Aggregate |
| Source | Granite / Basalt Quarry |
| Shape | Angular / Cubical |
| Fineness Modulus | 6.5 – 7.0 |
| Bulk Density | 1450 – 1650 kg/m³ |
| Water Absorption | 0.5% – 1.0% |
| Crushing Value | ≤ 30% |
| Impact Value | ≤ 25% |
| Flakiness Index | ≤ 15% |
| ISI Standard | IS:383 – 2016 |
| Color | Grey / Blackish Grey |
| Packaging | Loose (Truckload / Dumper) |
20mm aggregate is the most common coarse aggregate used in structural concrete.
It provides strength, durability, and rigidity to reinforced structures.
Due to its angular shape and size, it ensures a perfect bond with cement and sand mix, reducing voids and enhancing load resistance.
Usage:
Used in RCC, column, beam, foundation, concrete road, and structural slabs.
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