Alkali-Activated Cements could be a fantastic alternative to the typical Portland Cement. Some of their advantages:
- Create far less CO2 gas. Portland Cement is the world's largest producer of CO2, except only for fossil fuels.
- Could last many times as long (consider the Pantheon in Rome!)
- Several times as strong
- Rapid strength development
- Can be made from ubiquitous and safe raw materials, even in developing communities
- Is cost competitive
This, my current PhD project, is to develop a commercially viable alternative to Portland which can be used both in developed and developing communities. We are already having great success with blast furnace slag, an industrial waste product, achieving rapid curing, 65 MPa strength in 28 days (3x stronger than Portland), and hydrualic stability.
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Last Updated on Friday, 13 February 2009 16:15 |
