Glenium C 380 

GLENIUM C380 is a new generation superplasticiser for concrete containing polycarboxylate ether polymers. It has been primarily developed for use in precast and prestressed concrete, but it is also suitable for use in other types of concrete.

GLENIUM C380 is free of chloride and has been formulated to comply with the requirements of ASTM C494 for Types A and F admixtures. GLENIUM C380 is compatible with all cements meeting recognised international standards.

GLENIUM C380 is differentiated from conventional superplasticisers in that it is based on a unique polycarboxylate ether polymer with long lateral chains.

This greatly improves cement dispersion. Conventional superplasticisers, such as those based on sulphonated melamine and naphthalene formaldehyde condensates, at the time of mixing, become absorbed onto the surface of the cement particles. This absorption takes place at a very early stage in the hydration process. The sulphonic groups of the polymer chains increase the negative charge on the surface of the cement particle and dispersion of the cement occurs by electrostatic repulsion.

At the start of the mixing process the same electrostatic dispersion occurs as described previously, but the presence of the lateral chains, linked to the polymer backbone, generate a steric hindrance, which stabilises the cement particles capacity to separate and disperse.

This mechanism provides flowable concrete with greatly reduced water demand.

Do not use other water-reducers and/or superplasticisers in the mix with GLENIUM C380. GLENIUM C380 is compatible with selected BASF Construction Chemicals air-entraining agents. Consult your local BASF Construction Chemicals representative for advice.