Worldwide, 2.3 billion people are affected by water scarcity by contrast, in the U.S. alone, 23 billion liters of drinking water are lost every day due to aging infrastructure. Moreover, around 80% of wastewater from both developed and developing countries is discharged untreated, posing significant risks to the environment and human health. Recognizing this urgency, countries around the world are now investing heavily in water security, with the USA allocating CHF 30 billion to this cause, followed by Saudi Arabia (CHF 19 billion), and India (CHF 16 billion).
A key solution to this challenge lies in averting the loss and contamination of drinking water. Across Europe, many drinking water supply systems have been in operation for hundreds of years. Regular maintenance, especially of their waterproofing, is essential to prevent water loss. As an example, Sika reports it has been instrumental in the renovation of a century-old water tank in Olletas, Spain. This tank is critical as it provides the entire drinking water needs for the Málaga population. The renovation included a complete refurbishment of the tank’s structure and its joints, as well as the installation of a new roofing system.
Ensuring water quality also hinges on safeguarding the concrete in the water reservoirs, which are expected to last more than 80 years. Recently, Sika provided a wide range of waterproofing and concrete admixtures, designed to reinforce and protect the new water plant in Aarau, Switzerland, from corrosion and chemicals. Sika was also involved in the construction of Santiago de Chile’s water supply system, which provides 70% of the capital’s drinking water needs.
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