A new megacity – a city with more than ten million residents – emerges every 16 months. A phenomenon of the globalized world, they are typically found in emerging markets, where 24 of the planet's 31 megacities are currently located.
Cities are the source of 80% of all greenhouse gas emissions – a value that could be cut significantly, as cities take on a prominent role in the fight against climate change. WACKER's construction chemicals help minimize emissions in the long term by reducing construction materials and extending renovation intervals.
which puts cities in a key position to fight climate change. WACKER construction chemicals help by optimizing renovation cycles and achieving lasting reductions in emissions.
Adding WACKER binders can drastically reduce the use of sand and cement – by up to 80 percent compared to the traditional thick-bed method. This not only means less material consumption at the construction site, but also saves time and costs.
The sun heats concrete and asphalt in cities immensely. And heavy rainfall occurs frequently, which pushes sewer systems to their limit. Pervious concrete is coarse-grained and contains many cavities, allowing rainwater to drain away more easily. ETONIS®, a concrete admixture developed by WACKER, allows manufacturers to produce a particularly robust grade of pervious concrete offering exceptional protection from freeze-thaw cycles and from chemicals dissolved in water.
In the coming years, China intends to modify around 80 percent of its urban areas to absorb and reuse over two thirds of rainwater. Better use of rain and wastewater requires efficient sewers, pipes and tanks. In mineral waterproofing membranes, VINNAPAS® binders provide sealing materials with the necessary strength, adhesion and flexibility.
According to a current study by the European Union, buildings could achieve a neutral CO2 balance if 97 percent of all buildings were refurbished along energy lines. With its VINNAPAS® products, WACKER can make a considerable contribution to meeting this goal: adding a mere 2 to 3 percent in mortar suffices to bond insulating systems and masonry securely and firmly.
According to the German Paint and Printing Inks Industry Association, 11 million buckets of wall paint will spoil every year because they were produced without preservatives. That corresponds to a loss of around €470 million. The alternatives? Add biocides – or make them without water.
To keep your facades looking beautiful for longer, use silicone resin emulsion paints. They were invented by a chemist at WACKER over 50 years ago. What is their secret of long-term protection? Watch our video for more information.
The Budapest Western train station is currently being lovingly restored. Now that it has been impregnated with an alphasilane-terminated polyether, the faded terrazzo flooring is once more as radiant as in the days of the Austro-Hungarian Empire.
Whether you live in the Netherlands or California: water is a double whammy for many cities around the world. Sometimes it is an increasingly scarce resource; sometimes it comes in abundance with heavy rains, storms or floods. Some cities even face both of these problems.