ULTRASH
ULTRASH originates from sub-bituminous and lignite coals. Its composition consists mainly of calcium, alumina, and silica with a lower loss on ignition. It generally contains more than 20% of lime and alkali, sulfate content are higher. It is also resistant to
expansion from chemical attack.
Uses:
- As prime material in many cement-based products
- In Portland cement concrete pavement or PCC pavement
- To reduce the percentage of cement by 15% to 20%
- To lower the cost and to improve the performance of PCC
- To produce all grade of concrete for residential, commercial and industrial structures
- Ready mix precast application
- Water retaining structure
- Self-compacting concrete
- Marine environment
- Mass concrete
- Road stabilization
- Pumped concrete
Advantages:
- Increased early and late compressive strengths
- Increased resistance to alkali silica reaction (ASR) when >15% is added
- Less heat generation during hydration
- Increased pore refinement
- Decreased permeability
- Decreased water demand
- Increased workability
- Environmentally friendly
- Cold weather resistance
- Reduces CO emissions
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