Mapei South Africa, local supplier of the international Mapei product range, recently supplied its Idrosilex Pronto and Mapelastic Foundation to construction company Improvon for use in the construction of sewerage manholes at the new Montague Business Park in Milnerton, Cape Town.
Paul Nieuwoudt, product manager for building and flooring at Mapei South Africa, says, “Negative water pressure from large wastewater volumes damages the outer layers of pipes or containers. When water levels rise and fall, causing expansion and contraction, this leads to the formation of cracks and other surface damage.”
Improvon used Idrosilex Pronto to cover surfaces in the manholes that would be in direct contact with sewage. Idrosilex Pronto is a Mapei-engineered osmotic, cementitious mortar which can also be used in contact with drinking water and for waterproofing masonry and concrete structures, making it ideal for coating manhole systems made of concrete.
“The Mapelastic Foundation is a key component of the overall waterproofing solution. It waterproofs concrete surfaces that are subject to both positive and negative water pressure as it is flexible and accommodates higher and lower water pressures,” says Nieuwoudt.
Mapelastic Foundation is ideal for waterproofing manholes, concrete retaining walls, underground car parks, cellars, sunken swimming pools and sunken elevator wells where resistance against water pressure is needed. It forms an impermeable, cementitious, elastic membrane that is durable and flexible and moves with its substrate, maintaining advanced water resistance.
Mapei products are available in a range of colours and provide cost-effective and long-lasting finishes.