MIDAR is a revolutionary sustainable geopolymer technology that can be used for numerous applications, such as encapsulating nuclear waste.
What is MIDAR?
A technology platform that uses a low temperature chemical reaction to consolidate aluminosilicate materials and form a robust solid inorganic material with high strength and chemical stability. The resulting material can be used as an encapsulation and immobilization agent by incorporating a solid or liquid waste stream into the inorganic solid matrix that is formed during the reaction.
The MIDAR geopolymerization process can be varied to accommodate different methods of forming: extrusion, moulding & casting.
The dominant raw materials are aluminosilicate materials. Examples include:
- Coal fly ash
- Blast furnace slags
- Waste glass
- Construction waste, e.g. bricks & concrete
- Mine tailings
- Amorphous clays, such as meta-kaolin
- Volcanic ash.
Why use MIDAR?
- Potential to utilize waste raw materials to form a high strength, solid matrix similar to ceramics
- As the technology is based on a chemical reaction, no firing is required. This reduces energy usage and carbon emissions
- The resulting material is fire, frost, chemical, shock, water and heat resistant
- It has a low level of leachability of encapsulated materials (e.g. radioactive substances)
- Curing time can be altered to suit system needs
- The resulting solid has negligible shrinkage (near net shape)
- It is a technology that has been honed by an experienced team of scientists and engineers whose aim is to produce materials technologies that address your technical challenges and commercial needs.
|Attribute||Cement||Organic or Silicone Polymer||MIDAR|
|Solids loading||Low||Low||High (up to 50%)|
|Resistance to fire and frost||Low||None/ Limited||Good|
|Shrinkage on curing||Low||Low to high (polymer dependent)||Negligible|
|Application method||Pumped (high viscosity)||Pumped (high viscosity)||Poured or pumped|