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Solving concrete efflorescence, adding durability

Home Infrastructure Construction & Civils Solving concrete efflorescence, adding durability

PREVENTING efflorescence on concrete is often a concern for contractors, but according to

Chryso Southern Africa, its Alpha Color 600 not only solves this problem, it also adds 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,” the company said in a statement.

“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.”

Efflorescence is an aesthetic problem that results in a white, chalky substance that is deposited on the surfaces of concrete. It is caused by soluble salts migrating through the concrete via capillary action.

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 by some light agitation after extended periods of storage. According to the company, it can even endure freezing, requiring 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.”

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