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3. Classification of adjuvants by efficacy
3.1 Workability
3.1.1 Admixtures modifying concrete workability
These admixtures modify the rheological behavior of concrete, mortar and grout in the fresh state, before setting begins. They lower the paste's shear threshold and modify its viscosity. They increase workability while reducing the amount of mixing water required, thus facilitating concrete placement. They increase the compactness of the mix, resulting in improved strength.
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Classification of adjuvants by efficacy
Modes of action
Bibliography
Standards and norms
- Produits chimiques liquides à usage industriel. Détermination de la masse volumique à 20 °C - ISO 758:1976 - Novembre 1976
- Agents de surface. Détermination du pH des solutions aqueuses. Méthode potentiométrique - ISO 4316:1977 - Août 1977
- Plastics – Vinyl chloride homopolymers and copolymers – Chlorine dosing - NF EN ISO 1158 - Juillet 1998
- Utilisation du chlorure de calcium et des adjuvants contenant...
Directory
Organizations – Federations – Associations (non-exhaustive list)
SYNAD (Additives Producers' Association)
CERIB (Research center for the concrete industry)
CIMbéton (information...
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