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Aggregate

What are Aggregates ?

Product Crushed stone aggregates
Standards ASTM D75, QCS 2014
Monthly capacity 100,000 metric tons
Shipping mode Loose loaded in vessel
Crusher type Two stage Jaw Crusher

Construction aggregate or aggregate is a broad category of coarse particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world.

Crushed stone or Stone or angular rock is a construction aggregate. It is created by mining a suitable rock formation and then using a crusher to break down the stone into different sizes. Crushed stone differs from gravel in that gravel has a more rounded shape and is made by the natural processes of weathering and erosion.

Crushed stone has continuously been used for a variety of construction needs because of its versatility. It is one of the most common and accessible natural resources on the planet. It is one of our most abundant and basic of raw materials.

Uses of stone aggregates

Stones are used in various industries from construction to agriculture.

Their uses are:

  • Used in paving blocks and concrete for sidewalks, driveways, patios, homes, office buildings and paved roads as a base or sub – base material or in the process of cement manufacture.
  • Used as a flux in blast furnaces to create liquid slag which, when cooled, becomes a stone material that is crushed and used as a construction aggregate.
  • Placed on the ground in landscapes around trees, drains and as tracking pads on construction sites.
  • A road construction technique called Macadam uses stones in which the strength of the road depends upon the interlocking of the stones due to their angular shapes.
  • Used with a binding material in walls for shorelines in order to protect against erosion from water or ice.
  • Used in railroad construction
  • Used in sewage treatment systems
  • Used in the manufacture of agricultural lime

Types

Types of crushed stone are categorized by the size of the stone after it has been crushed.

  • 6mm
  • 10mm
  • 20mm
  • 45 – 65 mm
  • Railway Ballast
  • Boulders ( As per client’s requirement )
  • Quarry Dust

Test report of  AGGREGATE 63MM TO 45MM.

Sr No Parameters Unit Result Obtained Requirements
1 Water Absorbtion % 0.73  
2 Specefic Gravity % 2.84  
3 Impact Value % 11.73 shall be <45%
4 Crushing Value % 13.45 shall be <45%
5 Abrasion Value % 14.34 shall be <45%
6 Oranic Impurties % NIL  
7 Deletrious Material % 0.84 Max 5%
8 Soundness Material% % 1.79 Max 18%
9 Sulphate (as SO3) % 0.0126  
10 Chlorides as Cl % 0.023 0.6 kg/m3 in RCC
11 Flakiness Index % 13.13 COMBINED SHALL BE <30% AS PER North
12 Elongation Index % 15.35

 

Sr No Sieve Size % Passing Requirements
1 90.MM 100 100
2 63.0 MM 93.45 90-100
3 53.0 MM 45.32 25-75
4 45 .0MM 0.06 0-15
5 22.94MM 0 0-5

Test report of AGGREGATE 10MM.

Sr No Parameters Unit Result Obtained Requirements
1 Water Absorbtion % 0.73  
2 Specefic Gravity % 2.84  
3 Impact Value % 11.73 shall be <45%
4 Crushing Value % 13.45 shall be <45%
5 Abrasion Value % 14.34 shall be <45%
6 Oranic Impurties % NIL  
7 Deletrious Material % 0.84 Max 5%
8 Soundness Material% % 1.79 Max 18%
9 Sulphate (as SO3) % 0.0126  
10 Chlorides as Cl % 0.023 0.6 kg/m3 in RCC
11 Flakiness Index % 13.13 COMBINED SHALL BE <30% AS PER North
12 Elongation Index % 15.35

 

Sr No Sieve Size % Passing Requirements
1 12.5MM 100 100
2 10.0 MM 93.45 85-100
3 4.75 MM 13.45 0-20
4 2.36 0.1 0-5
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