This project has received funding from the European Union's Horizon H2020 research and innovation programme under grant agreement No 893469.
Concrete is a composite material made up of a mixture of aggregates and paste.
The aggregates are sand and gravel or crushed stone; the paste is water and Portland cement. Cement makes up around 10–15 % of concrete.
Through the hydration process, the cement and water harden and bind the aggregates into a rock-like mass.
The EU-funded NEASCMs project will explore low-carbon cementitious binder alternatives to Portland cement.
It will use nanoengineering techniques to prepare various cementitious materials containing different sources of aluminosilicate, carbonate and sulfate binders for sustainable construction and solidification/stabilisation.
The project's work will provide a viable path for the efficient and cost-effective production and utilisation of the new binders, paving the way for the environmentally friendly manufacture of concrete.
The project “Nano-Engineered Aluminosilicate Cementitious Materials” (NEASCMs) is designed for training the fellow by preparing low-carbon cementitious binders for sustainable construction and solidification/stabilization, S/S.
Effects of nanoengineering on the regulation of the hydration and hardening processes of aluminosilicate-based cementitious binders for sustainable constructions, as well as its roles on the solidification/stabilization of aluminosilicate-based grains/wastes for environmental protection will be explored.
Nanoengineering will be utilized for preparing low-carbon cementitious materials containing of different sources of Aluminosilicates, Carbonates and Sulfates (ACS) binders for sustainable construction.
The hydration kinetics and performance of ACS binders will be tailored through the optimization of a combination of cement and minor ions (such as Mg, Fe, Cl).
The mechanical properties and durability will be systematically studied for evaluation of performance.
Secondly, effects of nanoengineering on S/S of typical aluminosilicate-based grains/wastes for environmental protection will be investigated.
Solidification/stabilization using nanoengineered aluminosilicates will be studied and modelled thermodynamically.
Cases such as solidification/stabilization of soil/construction wastes, mining wastes will be researched, and the environment features, such as the solidification capability, the leachability of the wastes will be investigated through mechanical testing and sequential extraction procedures (SEP), etc.
Life-cycle assessment (LCA) will be used for a comprehensive understanding of the sustainability of the production and utilization of the new binders, baselined against Portland cement by taking the transportation, production, usage, and recycling stages into consideration.
This project will shed a light on the preparation of low-carbon cementitious binders featuring great intellectual merits and broad engineering implications.
BRUNEL UNIVERSITY LONDON
Start date: 1 June 2021 - End date: 31 May 2023