Annual Review of Materials Research· 2014Q1· Review
Geopolymers and Related Alkali-Activated Materials
- 1,534citations
- Q1SCImago
- 2014year
Short summary
Alkali-activated binders, known as geopolymers, offer a sustainable, low-CO2 alternative to Portland cement for the construction industry, providing comparable technical properties and potential advantages in niche applications.
AI-generated from the title and abstract; the full text is not read.
Key points
- Geopolymers offer a low-CO2 alternative to Portland cement.
- They are synthesized from alkali-aluminosilicate chemistry using materials like blast furnace slag, calcined clay, and fly ash.
- These binders provide technical properties comparable to Portland cement.
- Understanding reaction mechanisms is key to controlling early-age and hardened properties, including durability.
AI-generated from the title and abstract; the full text is not read.
Abstract
The development of new, sustainable, low-CO 2 construction materials is essential if the global construction industry is to reduce the environmental footprint of its activities, which is incurred particularly through the production of Portland cement. One type of non-Portland cement that is attracting particular attention is based on alkali-aluminosilicate chemistry, including the class of binders that have become known as geopolymers. These materials offer technical properties comparable to those of Portland cement, but with a much lower CO 2 footprint and with the potential for performance advantages over traditional cements in certain niche applications. This review discusses the synthesis of alkali-activated binders from blast furnace slag, calcined clay (metakaolin), and fly ash, including analysis of the chemical reaction mechanisms and binder phase assemblages that control the early-age and hardened properties of these materials, in particular initial setting and long-term durability. Perspectives for future research developments are also explored.
The authors' abstract, as published at the source. Annual Review of Materials Research, 2014 · DOI ↗
Continue with a free account
Ask the paper: 3 free questions a day about this paper; save it, get its citation, new summaries every day for your field. Takeaways are Premium.
Continue free on the webSign in with Google or Apple; no card needed. You come back to this paper.
On your phone:
Field: Civil and Structural Engineering
Civil and Structural EngineeringEngineering