The concrete used for the bridges of this project are based on a recipe combining, both for the first time in Poland, the CEM I 42.5 Portland cement produced by Grupa Ożarów and a crushed-stone aggregates from carbonate deposit specifically produced for this purpose by Trzuskawica.
The project, located in mountainous area, is subject to high environmental standards. The limited warehouse storage area of Bosta Beton production sites in such environment has besides led the CRH companies to design a highly performing logistical chain the ensure smooth and permanent supply of the construction site. The construction of the “Zakopianka” will also use some 10.000t of ‘Trzuskar’ HSD, a new product launched by Trzuskawica on the market in 2017. ‘Trzuskar’ is a mix of burnt lime and fly ashes used for soil stabilization of construction site. Its recipe both concurs to a global positive environmental impact and most adequately fits with the type of the soil.
CRH companies in Poland are leveraging their technological know-how, and innovation capabilities, dedicated to offer the large infrastructure projects planned in Poland with the offers best fitting the needs and constraints of each project. They are also engaged in the construction of a northern part of the S7, close to Gdansk, where Bosta Beton was awarded with the delivery of some 300km3.