Hydraulic binders or binder constituents

The hydraulic binders or constituents such as cement, fly ash, slags and lime should comply with CEN EN 197-1 (2011), CEN EN 14227-4 (2013), CEN EN 14227-2 (2013) and CEN EN 14227-11 (2006), respectively. Additionally, any other hydraulic road binder, that is, factory-blended hydraulic binder for road use, may also be used, provided it complies to CEN EN 12447-5. 

The percentage of binder added to the mix is determined by mix design procedures. Mix design procedures shall conform to national regulations or to provisions valid at the place of use. The minimum binder content, when cement binder is used, is specified by CEN EN 14227-1 (2013) with respect to maximum nominal aggregate size of the mix. 

It must be noted that the lime is normally used for lowering the plasticity index of the material and to temporarily modify the materials to ease construction. Permanent increase of the strength of the material can be achieved only when used in a mixture with other hydraulic binders. Hence, the use on its own is very limited. 

Binder or binder constituent Application Mix-in-plant by mass batching (% by mass) mix-in-plant by vol batching (% by mass) 

Fine granulated blast When used with cement 2% 3% 

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