Canada´s National Tower, or CN Tower as it is better known, is an icon of Toronto, Canada. With a height of 553.3 meters, this communication tower is the second tallest building in the world, second only to the Burj Khalifa, a skyscraper located in Dubai, with a height of 828 meters.
Used for communication of different media and by numerous companies, the tower solved the transmission problems that existed before its appearance. Until its construction, radio and television signals faced transmission obstacles in the middle of buildings that were taller than the previously existing communication towers.
Its construction, completed in 1975, was an ambitious project that involved 1,537 workers working 24 hours a day, five days a week. In total, the tower contains 40,500 m³ of concrete. In 1995, it was ranked as one of the Seven Wonders of the Modern World by the American Society of Civil Engineers.
We supply concrete – Type 1 (normal) and Type IV (low hydrogen heat) – and Portland cements alone or in combination as required by weather conditions. The strength of the concrete was verified through the accelerated force test. Excellent control over the strength of the concrete was maintained with two test days.