Efflorescence is a chalky white salt residue. As moisture migrates up to the surface of concrete it carries along with calcium salts from within the concrete. When the salts reach the surface it reacts with the carbon dioxide in the air and forms insoluble calcium carbonate. Preventing efflorescence on concrete is often a concern for contractors, but CHRYSO has a simple solution – CHRYSO®Alpha Color 600.
In fact, CHRYSO® Alpha Color 600 does more than reducing the appearance of efflorescence. It is a double-function admixture that simultaneously gives a durable water repellent property to concrete. Giving a beading effect to concrete, the admixture enables mortars and concrete to resist water penetration, by capillarity or by pressure.
It also improves the aesthetic characteristics of manufactured concrete products, considerably reducing the appearance of spots and rings due to efflorescence. This gives a homogeneous colour to the result, whether it is precast aesthetic concrete, light precast concrete or coloured concrete.
This high-performance efflorescence reducer is available in a range of packaging, including 25-litre jerry cans, 200-litre drums, 1,000-litre flow bins or bulk tanker loads. With a long shelf life of 12 months, it can be homogenised simply by some light agitation after extended periods of storage. It can even endure freezing, requiring the only agitation after thawing to recover its properties.
From a health and safety point of view, CHRYSO®Alpha Color 600 need not raise any concerns for contractors and their employees as it is classified as harmless.
Efflorescence is an aesthetic problem that results in a white, chalky substance that is deposited on the surfaces of concrete.
Efflorescence is caused by soluble salts migrating through the concrete via capillary action.
CHRYSO®Alpha Color 600 ensures a homogeneous colour is achieved.
An added benefit of using CHRYSO®Alpha Color 600 is that pigmented concrete products are much richer in colour than products produced without CHRYSO®Alpha Color 600.
Another important function of CHRYSO®Alpha Color 600 is that it acts as a water repellent because it reduces capillary absorption.