Procedia Engineering· 2015
Geoecoprotective Properties of Cement and Concrete Against Heavy Metal Ions
- 38citations
- 2015year
Short summary
Cement and concrete can detoxify heavy metal ions (HMI) from the environment through reactions with calcium silicate and sulfate, reducing Gibbs energy compared to hydration alone.
AI-generated from the title and abstract; the full text is not read.
Key points
- Cement and concrete can detoxify heavy metal ions (HMI).
- Detoxification occurs via reactions with calcium silicate and sulfate.
- These reactions are thermodynamically favorable, reducing Gibbs energy compared to hydration alone.
- Mineral geoantidotes (MGA) are proposed for environmental remediation.
AI-generated from the title and abstract; the full text is not read.
Abstract
Geoecoprotective properties of the binder system are discussed in the paper. The base of such properties is detoxication of environment from heavy metal ions by means of reactions with silicate and sulphate calcium. Thermodynamic analysis of the systems has shown that reactions of heavy metal ions (HMI) with certain building materials provides reduction of Gibbs energy value comparing to hydration reactions without HMI. Detoxicating systems were named mineral geoantidotes (MGA). Estimations of the detoxication processes and application examples are given.
The authors' abstract, as published at the source. Procedia Engineering, 2015 · DOI ↗
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Field: Nuclear Energy and Engineering
Nuclear Energy and EngineeringEnergy