Worldwide consumption of fuels such as crude oil, coal or natural gas, and raw materials such as water, iron ore or cement is constantly rising. Yet these resources are limited and their extraction is becoming increasingly expensive or is negatively impacting the climate. The efficient use of resources is one of the greatest challenges facing our generation. Sika offers numerous solutions that make a major contribution to the efficient use of energy and raw materials.
Sika solutions for saving energy and raw materials
- Sika’s concrete admixtures for high-grade concrete incorporating recycled aggregates reduce the demand for gravel
- Special seals for argon-filled insulating glass units and for bonding lighter windows improve the thermal insulation performance of low-energy buildings
- Structural adhesives and polymer-based reinforcing components for lighter automobiles help save fuel
Example: Saving energy with grinding aids
Sika grinding aids for energy-efficient cement production save approximately 64 MJ of energy per ton cement (0.035% dosage) compared to grinding performed without these aids. As only around 10 MJ are consumed in the manufacture of grinding aids, the resulting net savings total 54 MJ per ton cement. This is roughly equivalent to the daily electricity consumption of an average Swiss household. Extrapolated to the global cement demand of 3,294 million tons in 2010, Sika grinding aids could theoretically have achieved energy savings equal to the annual power consumption of around 6.5 million households.
Example: Saving energy in glass facade construction
The innovative Sikasil® SG-550 adhesive and Sikasil® IG-25 sealant cater for pioneering structural glazing assemblies. The substantial savings achievable through the use of high-strength silicone adhesives are illustrated by the project for a 170 m tall building with 60,000 m² of glazing in central Asia. The Sika solutions adopted here cut the silicone adhesive requirement by a full 39 tons, compared to an assembly using standard products. These savings correspond to CO 2 emissions of over 100 tons and an energy consumption of 3,000 GJ.