Pozzolans

These are siliceous or aluminous materials that react with calcium hydroxide (a by-product of lime) to form hydraulic compounds when in the presence of water. One example is metakaolin. Tests carried out at the University of Minho show that mortars containing metakaolin have compressive strengths more than eight times higher than lime-only mortars.

Other additives can be used to achieve the desired performance.

Field of application

Ideal for construction and civil engineering, for the production of mortars and hempcrete when mixed with lime.

Characteristics

Available in 20kg bags and big bags.

Light beige coloured fine powder

59% SiO2

34% Al2O2

3.2 % humidity

bulk density 700-800 kg/m3

Storage

The material should be stored on a flat surface, sheltered from the rain and in a well-ventilated area. 

Consumption

Depends on the type of application.

Contact us for price conditions and technical data.